CN102350690A - Plastic covered agricultural implement and forming method thereof - Google Patents
Plastic covered agricultural implement and forming method thereof Download PDFInfo
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- CN102350690A CN102350690A CN2011102476644A CN201110247664A CN102350690A CN 102350690 A CN102350690 A CN 102350690A CN 2011102476644 A CN2011102476644 A CN 2011102476644A CN 201110247664 A CN201110247664 A CN 201110247664A CN 102350690 A CN102350690 A CN 102350690A
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- 239000004033 plastic Substances 0.000 title claims abstract description 88
- 229920003023 plastic Polymers 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 85
- 239000010959 steel Substances 0.000 claims abstract description 85
- 239000002023 wood Substances 0.000 claims abstract description 77
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 34
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 34
- 241001330002 Bambuseae Species 0.000 claims abstract description 34
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 34
- 239000011425 bamboo Substances 0.000 claims abstract description 34
- 239000007787 solid Substances 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 239000003292 glue Substances 0.000 claims description 23
- 238000001746 injection moulding Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- -1 polypropylene Polymers 0.000 claims description 18
- 239000004743 Polypropylene Substances 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 229920001155 polypropylene Polymers 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 235000013305 food Nutrition 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract description 12
- 239000003973 paint Substances 0.000 abstract description 6
- 239000011120 plywood Substances 0.000 abstract 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000009864 tensile test Methods 0.000 description 15
- 239000002994 raw material Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 229920001617 Vinyon Polymers 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007937 lozenge Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The invention relates to a plastic covered agricultural implement and a forming method thereof. The plastic covered agricultural implement comprises a handle, the handle comprises a handle core made from solid wood, wood plywood or bamboo plywood; a plastic layer is wrapped on the outer surface of the handle core; besides, a hand-held steel framework formed by steel bars is installed on one end of the handle core; and a high strength plastic layer is integrally injected and molded on the outer surfaces of the handle core and the hand-held steel framework. The handle of the plastic covered agricultural implement provided by the invention is completely sealed, is waterproof, and prevents such phenomena as moisture regain, mustiness, worm damage and crack; the integral handle has the test tension of larger than 180 KG and test pressure of larger than 280 KG which are more than twice larger than the test tension and the test pressure of the handle made from solid wood, wood plywood or bamboo plywood and are more than 1.5 times larger than the test tension and the test pressure of a plastic covered handle with a steel pipe or a fiber bar as an inner core; the surface is smooth and the hand feel is tender; the surface is not treated by using paint, the yield is 95-100%, and the service life of the handle of the plastic covered agricultural implement is prolonged by more than two times.
Description
Technical field
The present invention relates to the handle for tool technical field, relate in particular to a kind of plastic farm implements and forming method thereof.
Background technology
At present, a lot of instruments are the tool sets that assemble after making respectively with iron piece part and handle portion.Wherein use the agricultural tools of wooden handle to be representative with steel shovel, steel shovel, pick mattock, steel rake, steel hoe, iron hammer, reaping hook etc.; What the handle overwhelming majority that this kind tool uses was used is circular solid wood handle; The round handle that also has fraction to be to use composites such as wood glue plate, bamboo offset plate to process, the surface brush at handle lays a coat of paint then.Wherein, some instrument is sold, is used with the first-class tool set that is made into of steel shovel iron install plastic cement or iron shaking hands additional at the handle end place after.
Adopt the handle for tool of above-mentioned explained hereafter manufacturing to get damp again easily, mouldy, damage by worms, rupture, and the wood surface processing accuracy is required very high, defect rate very high (general below 70% yield rate).Through test, this handle for tool and plastic cement, ironly shake hands whole tensile test between 60-80KG, pressure test is between 100-120KG, the product quality rank is lower, and serious waste raw material.
Summary of the invention
Main purpose of the present invention is to provide a kind of long service life and high plastic farm implements and the forming method thereof of quality scale.
In order to achieve the above object, the present invention proposes a kind of plastic farm implements, comprising: handle, said handle comprise the handle core of being processed by solid wood, wood glue plate or bamboo offset plate, and said handle core outer surface is coated with plastic layer.
Preferably, said handle cross section is cylindrical oval or square.
Preferably, said decreased food is 100mm～1200mm; Said handle core diameter is 15mm～45mm, and said handle diameters is 18mm～50mm.
Preferably, also comprise the steel skeleton of shaking hands, the said steel skeleton of shaking hands is fixed on an end end of said handle core; The said steel skeleton of shaking hands is coated with plastic layer, and plastic layer and the plastic layer outside the said handle core outside the said steel skeleton of shaking hands are one-body molded.
Preferably, the said steel skeleton of shaking hands is bent into the shape of shaking hands by steel bar, and said steel bar has two free ends, and two free ends of said steel bar are fixed on an end end of said handle core through rivet.
Preferably, said steel bar thickness is 0.8mm～3mm; Width is 8mm～30mm; Said plastic layer is by polypropylene or polythene material injection mo(u)lding; Plastic cement bed thickness 0.8mm～4mm.
Preferably, the long 100mm～1500mm of said handle core; The said steel skeleton of shaking hands is 120mm～300mm along the length of handle wire mandrel; The end width of this steel skeleton of shaking hands is 80mm～200mm.
The present invention also proposes a kind of plastic farm implements forming method, may further comprise the steps:
Solid wood, wood glue plate or bamboo offset plate are processed into strip, cross section are circular oval or square handle core;
At said handle core outer surface injection moulding plastic layer.
The present invention also proposes a kind of plastic farm implements forming method, may further comprise the steps:
Solid wood, wood glue plate or bamboo offset plate are processed into strip, cross section are circular oval or square handle core;
The steel skeleton of shaking hands that is formed by the steel bar bending is installed in an end end of said handle core;
Outer surface integrated injection molding plastic layer at the said handle core and the steel skeleton of shaking hands.
Preferably, also comprise before the step of said outer surface integrated injection molding plastic layer at the handle core and the steel skeleton of shaking hands:
To the other end of said handle core, the end that is used to install the position of iron piece soaks and moulds processing.
A kind of plastic farm implements and forming method thereof that the present invention proposes; With solid wood or wood glue plate; The bamboo offset plate is processed into circular or oval or the square handle for tool shape of the about 15mm～45mm of diameter; Install with thick approximately 0.8mm～3mm at the tool handshakes place; The steel bar of wide 8mm～30mm is formed into the shape of shaking hands; Be fixed on handle end as the steel skeleton of shaking hands with solid rivet; Make it and being integral of handle handle figure; Adopt the highstrenghtpiston with the large-tonnage injection machine then; Such as polypropylene or vinyon whole handle one-shot forming reached coating fully; Whole handle seals fully; Complete waterproof; Moisture regain can not appear; Mouldy; Damage by worms; Phenomenons such as fracture; The handle position of shaking hands is to be fixed on handle earlier to pass through the one-shot forming of large-tonnage injection machine after one's death; Make it to become an integral body with the handle figure; Add high-strength polypropylene or vinyon clad; Make this handle integral body in tensile test, reach more than the 180KG; Pressure test is more than 280KG; Considerably beyond solid wood; The wood glue plate; Bamboo offset plate handle tensile test; Pressure test is more than 2 times; Surpass steel pipe; The fiber rod is the plastic handle tensile test of inner core; Pressure test is more than 1.5 times; Surface treatment is smooth; Feel is fine and smooth; And noting be used in the surface uses paint to handle; Yield rate 95%-100%; Improve the handle for tool life cycle life-span more than 2 times, and technical indicator is higher than comprehensively with steel pipe; The fiber rod is the plastic handle of inner core.
Description of drawings
Fig. 1 is the structural representation of the plastic farm implements first embodiment injection moulding pull end core of the present invention;
Fig. 2 is the structural representation after the plastic farm implements first embodiment handle injection mo(u)lding of the present invention;
Fig. 3 is the structural representation before the plastic farm implements second embodiment injection moulding of the present invention;
Fig. 4 is the structural representation after the plastic farm implements second embodiment injection moulding of the present invention;
Fig. 5 is the schematic flow sheet of the forming method of plastic farm implements among Fig. 2 of the present invention;
Fig. 6 is the schematic flow sheet of the forming method of plastic farm implements among Fig. 4 of the present invention.
In order to make technical scheme of the present invention clearer, clear, will combine accompanying drawing to do further to detail below.
The specific embodiment
Embodiment of the invention solution mainly is: with solid wood or wood glue plate; The bamboo offset plate is processed into circular or oval or the square handle for tool shape of the about 15mm～45mm of diameter; Install with thick approximately 0.8mm～3mm at the tool handshakes place; The steel bar of wide 8mm～30mm is formed into the shape of shaking hands; Be fixed on handle end as the steel skeleton of shaking hands with solid rivet; Make it and being integral of handle handle figure; Adopt the highstrenghtpiston whole handle one-shot forming to be reached coating fully with the large-tonnage injection machine then such as polypropylene or vinyon; Handle seals fully; Complete waterproof; Moisture regain can not appear; Mouldy; Damage by worms; Phenomenons such as fracture, the service life of improving handle for tool.
Because the handle for tool of existing explained hereafter manufacturing gets damp again easily, mouldy, damage by worms, rupture, very high to the wood surface processing requirements; Make the defect rate of handle for tool very high (general below 70% yield rate); And handle and plastic cement, ironly shake hands whole tensile test between 60-80KG; Pressure test is between 100-120KG; The handle tolerance is not high, and the waste raw material are serious.
Like Fig. 1 and shown in Figure 2, first embodiment of the invention proposes a kind of plastic farm implements, and this handle for tool comprises handle 1, and handle 1 comprises the handle core of being processed by solid wood, wood glue plate or bamboo offset plate etc. 2, and handle core 2 outer surfaces are coated with plastic layer 4.
Wherein, handle 1 cross section can be for cylindrical oval or square etc., and the one of which end is the held end, and the other end is provided with lozenges, is used to install iron pieces such as spade, reaping hook.
In the present embodiment, handle 1 length is 100mm～1200mm; Handle core 2 diameters can be 15mm～45mm; Such as can value being 34mm; Plastic layer 4 thickness can be 0.8mm～4mm; Such as being 2mm; Handle 1 diameter can be 18mm～50mm; Such as can being 38mm, plastic layer 4 by high-intensity plastics such as polypropylene or polythene material injection mo(u)lding.
Since adopt high-intensity polypropylene or polythene material in the 2 outer surface injection mouldings of handle core one deck plastic layer 4; Make handle 1 seal fully; Complete waterproof; Can not occur moisture regain, mouldy, damage by worms, phenomenon such as fracture, avoid on the solid wood handle because fawn on, reasons such as cracking, the irregular wood grain color of timber itself cause substandard products, waste product; Handle integral body reaches more than the 180KG in tensile test; Pressure test is more than 280KG; Considerably beyond solid wood; The wood glue plate; Bamboo offset plate handle tensile test; Pressure test is more than 2 times; Surpass steel pipe; The fiber rod is the plastic handle tensile test of inner core; Pressure test is more than 1.5 times; Surface treatment is smooth; Feel is fine and smooth; And noting be used in the surface uses paint to handle; Yield rate can reach 95%-100%; Compare existing handle for tool; The present embodiment handle for tool life cycle life-span can improve more than 2 times, and technical indicator is higher than with steel pipe comprehensively; The fiber rod is the plastic handle of inner core.
In addition, handle core 2 adopts cheapest fuel wood material (burn and use material), wood, bamboo wood leftover pieces in the present embodiment, and employing wood, the wood glue plate of bamboo wood leftover pieces manufacturing, fuel wood material, bamboo offset plate is raw material, uses cheap made expensive goods.What displacement cost was high is raw-material plastic farm implements with iron and steel pipe, fiber rod; Reduce the waste of resources such as valuable wood, bamboo, iron and steel greatly; Reduce product cost, improve handle for tool series products overall technology index; Greatly degree reduces the wasting of resources, produces maximum economic benefits to utilize minimum resource.
In addition, handle core 2 adopts solid wood, wood glue plate or bamboo offset plate material to process in the present embodiment, but is not limited to above-mentioned three kinds of materials, and the handle core can also adopt other derived materials such as wood, bamboo to process.
Handle for tool in the present embodiment is applicable to the instrument of the handle that is used for the hardware & tools product such as parts of need not shaking hands such as reaping hooks.
Like Fig. 3 and shown in Figure 4; Second embodiment of the invention proposes a kind of plastic farm implements; Handle 11 in the present embodiment in the plastic farm implements is with the difference of the foregoing description; Handle 11 in the present embodiment also comprises the steel skeleton 31 of shaking hands, and the steel skeleton 31 of shaking hands is fixed on the end end that handle core 21 supplies held.
The outer surface of steel skeleton 31 and handle core 21 of shaking hands in the present embodiment all is coated with plastic layer 41, and the outer plastic layer 41 of the outer plastic layer 41 of the steel skeleton 31 of shaking hands and handle core 21 is one-body molded.
The steel skeleton 31 of shaking hands in the present embodiment is bent into the shape of shaking hands by high-intensity steel bar, and it has the hollow bulb of being convenient to held, and steel bar has two free ends, and two free ends of steel bar are fixed on an end end of handle core 21 through rivet.
Specifically can each make a call to the circular hole of 2 about 3mm of diameter at two free ends of steel bar, be formed into the handle shape of shaking hands, adopt the solid rivet of the about 3mm of diameter to be fixed on the end that handle 11 Gong to shake hands.
Wherein, steel bar thickness can be 0.8mm～3mm; Width can be 8mm～30mm.
Same as the previously described embodiments, shake hands in the present embodiment steel skeleton 31 and handle core 21 outer integrated plastic layers 41 also are by material injection mo(u)ldings such as high-intensity polypropylene or polyethylene, plastic layer 41 thick 0.8mm～4mm.
Adding man-hour; Be processed into handle core 21 shapes of handle for tool of the cylindrical or elliptical cylinder-shape of the about 15mm～45mm of diameter with solid wood or wood glue plate, bamboo offset plate; At the tool handshakes place is the shape of shaking hands of the steel bar moulding that end installation is thick with about 0.8mm～3mm, 8mm～30mm is wide of handle core 21; Be fixed on handle end as the steel skeleton 31 of shaking hands with solid rivet, make it and handle core 21 being integrally formed.Adopt high-strength polypropylene or poly plastics to whole handle one-shot forming and coating fully with the large-tonnage injection machine then, accomplish the manufacturing all processes of handle for tool.
The advantage of handle for tool of the present invention is that whole handle seals fully; Complete waterproof; Moisture regain can not appear; Mouldy; Damage by worms; Phenomenons such as fracture; The handle position of shaking hands just has been fixed on handle core 21 1 ends before the injection moulding; Pass through the one-shot forming of large-tonnage injection machine afterwards; Make it to form an integral body with handle core 21; Add high-strength polypropylene plastic packets coating; Make this handle integral body in tensile test, reach more than the 180KG; Pressure test is more than 280KG; Considerably beyond solid wood; The wood glue plate; Bamboo offset plate handle tensile test; More than 2 times of pressure test; Surpass steel pipe simultaneously; The fiber rod is the plastic handle tensile test of inner core; Pressure test is more than 1.5 times; Its surface treatment is smooth; Feel is fine and smooth; And noting be used in the surface uses paint to handle; Yield rate can reach 95%-100%, improve the handle for tool life cycle life-span more than 2 times, and technical indicator is higher than comprehensively with steel pipe; The fiber rod is the plastic handle of inner core.
And; Present embodiment handle core 21 can use cheapest fuel wood material (burn and use material), wood, bamboo wood leftover pieces; And to adopt wood, the wood glue plate of bamboo wood leftover pieces manufacturing, fuel wood material, bamboo offset plate be raw material; Use handle to increase disposable injection moulding behind the dress high strength steel bar skeleton, encapsulate moulding in shaking hands; What displacement cost was high is raw-material plastic farm implements with iron and steel pipe, fiber rod; Reduce the waste of resources such as valuable wood, bamboo, iron and steel; Reduce product cost, improve handle for tool series products overall technology index, can reach maximum economic benefits.
Compare existing solid wood handle, handle for tool of the present invention has following characteristics:
(1) handle for tool connects the integral body of position formation of shaking hands, and does not need to install again, increases substantially this connecting portion loading weight, is increased to more than the 180KG by about 60KG tensile test.Bring up to more than the 280KG by the 120KG pressure test.Whole handle for tool do not connect vestige, increases substantially the handle for tool class, the instrument wood handle of minimum quality grade brought up to a plastic body high strength handle for tool of high-quality;
(2) because whole handle for tool is the one injection moulding; The handle for tool smooth surface is smooth; Feel, color can arbitrarily be adjusted; Avoid on the solid wood wooden handle because fawn on, reasons such as cracking, the irregular wood grain color of timber itself cause substandard products, waste product; Greatly degree reduces the wasting of resources, produces maximum economic benefits to utilize minimum resource.
(3) the plastic handle of instrument is because be hermetic, fully waterproof, fully avoid moisture regain that handle for tool such as solid wood can produce, go mouldy, damage by worms, quality problems such as fracture, the product cycle in service life increases substantially more than 2 times.
As shown in Figure 5, to the handle for tool of above-mentioned first embodiment, one embodiment of the invention proposes a kind of plastic farm implements forming method, comprising:
Step S101 is processed into strip, cross section with solid wood, wood glue plate or bamboo offset plate and is circular oval or square handle core;
Adopt the shape of solid wood, wood glue plate, bamboo offset plate or other wood, glue derived material handle core of moulding strip on lathe, the cross section of handle core can adopt circle oval or square etc.
Step S102 is at handle core outer surface injection moulding plastic layer.
On large-tonnage injection machine mould, adopt high-intensity plastics the handle core to be carried out the moulding of integral molded plastic encapsulate, at the outer surface formation coating one deck polypropylene or the polyethylene plastic layer of handle core such as polypropylene or polyethylene etc.
On the instrument of handle for tool in the present embodiment applicable to parts of need not shaking hands such as reaping hooks.
As shown in Figure 6, to the handle for tool of above-mentioned second embodiment, another embodiment of the present invention proposes a kind of plastic farm implements forming method, comprising:
Step S201 is processed into strip, cross section with solid wood, wood glue plate or bamboo offset plate and is circular oval or square handle core;
Step S202 installs the steel skeleton of shaking hands that is formed by the steel bar bending in an end end of handle core;
Step S203 is at the outer surface integrated injection molding plastic layer of the handle core and the steel skeleton of shaking hands.
The difference of present embodiment and the foregoing description is that the handle for tool in the present embodiment also comprises the steel skeleton of shaking hands, and the steel skeleton of shaking hands is fixed on the end end that the handle core supplies held.
The steel skeleton of wherein shaking hands is bent into the shape of shaking hands by high-intensity steel bar, and it has the hollow bulb of being convenient to held, and steel bar has two free ends, and two free ends of steel bar are fixed on an end end of handle core through rivet.
When mounted, each makes a call to the circular hole of 2 about 3mm of diameter at two free ends of steel bar, is formed into the handle shape of shaking hands, and adopts the solid rivet of the about 3mm of diameter to be fixed on the end that handle Gong to shake hands.
Structure about handle for tool in the present embodiment can not be described further at this with reference to above-mentioned second embodiment.
In addition, before the high-intensity plastics of the outer surface integrated injection molding of the handle core and the steel skeleton of shaking hands are such as polypropylene or polyethylene plastic layer, also can be, the end that is used to install the position of iron piece soaks and mould processing to the other end of handle core.
The advantage of embodiment of the invention handle for tool is that whole handle seals fully; Complete waterproof; Moisture regain can not appear; Mouldy; Damage by worms; Phenomenons such as fracture; The handle position of shaking hands just has been fixed on handle core one end before the injection moulding; Pass through the one-shot forming of large-tonnage injection machine afterwards; Make it to form an integral body with the handle core; Add high-strength polypropylene plastic packets coating; Make this handle integral body in tensile test, reach more than the 180KG; Pressure test is more than 280KG; Considerably beyond solid wood; The wood glue plate; Bamboo offset plate handle tensile test; More than 2 times of pressure test; Surpass steel pipe simultaneously; The fiber rod is the plastic handle tensile test of inner core; Pressure test is more than 1.5 times; Its surface treatment is smooth; Feel is fine and smooth; And noting be used in the surface uses paint to handle; Yield rate can reach 95%-100%, improve the handle for tool life cycle life-span more than 2 times, and technical indicator is higher than comprehensively with steel pipe; The fiber rod is the plastic handle of inner core.
And; The present invention can use cheapest fuel wood material (burn and use material), wood, bamboo wood leftover pieces; And to adopt wood, the wood glue plate of bamboo wood leftover pieces manufacturing, fuel wood material, bamboo offset plate be raw material; Use handle to increase disposable injection moulding behind the dress high strength steel bar skeleton, encapsulate moulding in shaking hands; What displacement cost was high is raw-material plastic farm implements with iron and steel pipe, fiber rod; Reduce the waste of resources such as valuable wood, bamboo, iron and steel; Reduce product cost, improve handle for tool series products overall technology index, can reach maximum economic benefits.
The above only is the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. plastic farm implements is characterized in that, comprising: handle, said handle comprise the handle core of being processed by solid wood, wood glue plate or bamboo offset plate, and said handle core outer surface is coated with plastic layer.
2. plastic farm implements according to claim 1 is characterized in that, said handle cross section is cylindrical oval or square.
3. plastic farm implements according to claim 2 is characterized in that, said decreased food is 100mm～1200mm; Said handle core diameter is 15mm～45mm, and said handle diameters is 18mm～50mm.
4. plastic farm implements according to claim 1 is characterized in that, also comprise the steel skeleton of shaking hands, and the said steel skeleton of shaking hands is fixed on an end end of said handle core; The said steel skeleton of shaking hands is coated with plastic layer, and plastic layer and the plastic layer outside the said handle core outside the said steel skeleton of shaking hands are one-body molded.
5. plastic farm implements according to claim 4 is characterized in that, the said steel skeleton of shaking hands is bent into the shape of shaking hands by steel bar, and said steel bar has two free ends, and two free ends of said steel bar are fixed on an end end of said handle core through rivet.
6. plastic farm implements according to claim 5 is characterized in that, said steel bar thickness is 0.8mm～3mm; Width is 8mm～30mm; Said plastic layer is by polypropylene or polythene material injection mo(u)lding; Plastic cement bed thickness 0.8mm～4mm.
7. according to claim 4,5 or 6 described plastic farm implements, it is characterized in that the long 100mm～1500mm of said handle core; The said steel skeleton of shaking hands is 120mm～300mm along the length of handle wire mandrel; The end width of this steel skeleton of shaking hands is 80mm～200mm.
8. a plastic farm implements forming method is characterized in that, may further comprise the steps:
Solid wood, wood glue plate or bamboo offset plate are processed into strip, cross section are circular oval or square handle core;
At said handle core outer surface injection moulding plastic layer.
9. a plastic farm implements forming method is characterized in that, may further comprise the steps:
Solid wood, wood glue plate or bamboo offset plate are processed into strip, cross section are circular oval or square handle core;
The steel skeleton of shaking hands that is formed by the steel bar bending is installed in an end end of said handle core;
Outer surface integrated injection molding plastic layer at the said handle core and the steel skeleton of shaking hands.
10. want 9 described methods according to right, it is characterized in that, also comprise before the step of said outer surface integrated injection molding plastic layer at the handle core and the steel skeleton of shaking hands:
To the other end of said handle core, the end that is used to install the position of iron piece soaks and moulds processing.
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| CN2011102476644A CN102350690A (en) | 2011-08-24 | 2011-08-24 | Plastic covered agricultural implement and forming method thereof |
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| CN2011102476644A CN102350690A (en) | 2011-08-24 | 2011-08-24 | Plastic covered agricultural implement and forming method thereof |
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| CN102350690A true CN102350690A (en) | 2012-02-15 |
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| CN104708607A (en) * | 2013-12-11 | 2015-06-17 | 旅顺鸡冠山农场 | Multipurpose farm tool |
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| CN104708607A (en) * | 2013-12-11 | 2015-06-17 | 旅顺鸡冠山农场 | Multipurpose farm tool |
| CN111716631A (en) * | 2020-06-30 | 2020-09-29 | 重庆欧洛森智能科技研究院有限公司 | Extrusion molding equipment and method for integrally molded door frame |
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