CN104960915A - Ejecting device for tire production equipment - Google Patents
Ejecting device for tire production equipment Download PDFInfo
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- CN104960915A CN104960915A CN201510334975.2A CN201510334975A CN104960915A CN 104960915 A CN104960915 A CN 104960915A CN 201510334975 A CN201510334975 A CN 201510334975A CN 104960915 A CN104960915 A CN 104960915A
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- orienting lug
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Abstract
The invention belongs to the technical field of transportation, and relates to an ejecting device for tire production equipment. The ejecting device comprises a guide block provided with a guide hole, a connecting block provided with a thread hole and fixedly connected to the guide block, and a transmission rod matched and mounted in the thread hole and capable of driving the guide block to move in a reciprocating manner along the axle thereof, wherein the thread hole and the guide hole are coaxial. After the structure is improved, the clamping is convenient, and the tire support performance is good. In addition, the transmission rod is manufactured by a carbon fiber composite material, and the guide block is manufactured by a polyformaldehyde composite material, so that the rigidity and the strength are high, the production cost is low, and the manufacturing period is short.
Description
Technical field
The invention belongs to conveying technology field, relate to a kind of load transfer device, particularly a kind of holding device for tire production.
Background technology
In current tire production, loading and unloading and course of conveying generally adopt and manually carry out, and production efficiency is low, and labour intensity is high.
Chinese patent CN103434840A discloses a kind of Tire hand grab, comprise tire bracket, main shaft, coupler, leading screw and nut mechanism and actuating device thereof, connecting rod, pinion and rack, rack drives device and pallet, this Tire hand grab both can the crawl of suitable for various size tire, also can be used for the crawl of specification tyre of the same race.
Above-mentioned manipulator adopts connecting rod by the form of both sides gripping tire, and tire needs the neat not so gripping of piling inconvenient, and structure design is reasonable not.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose the holding device for tyre production equipment that a kind of gripping is convenient, Tire support is good.
Object of the present invention realizes by following technical proposal: a kind of holding device for tyre production equipment, is characterized in that, comprising:
Orienting lug, orienting lug offers pilot hole;
Contiguous block, contiguous block offers tapped bore, and contiguous block to be connected on orienting lug and tapped bore and pilot hole coaxial line;
Drive link, drive link Matching installation is in tapped bore, and drive link can drive orienting lug to move back and forth along the axis of drive link.
Above-mentioned a kind of in the holding device of tyre production equipment, orienting lug is made up of polyformaldehyde composite material.
Above-mentioned a kind of in the holding device of tyre production equipment, polyformaldehyde composite material forms primarily of following composition (with weight parts): POM:100 part, polytetrafluoroethylene: 15-30 part, government rubber: 10-20 part, fortifying fibre: 20-40 part, metal powder: 5-15 part, coupling agent: 1-5 part, dispersing agent: 1-3 part, stabilizer: 1-5 part.
Polyformaldehyde is commonly called as match steel or takes steel by force, has the Rockwell hardness of metalloid, intensity and rigidity, within the scope of very wide temperature and humidity, all has good self lubricity, fatigue durability, and have elasticity and good chemical-resistant.Therefore, orienting lug of the present invention adopts polyformaldehyde composite material to replace metallic material to make, do not need to carry out metalworking technique, not only save the expense such as manufacturing procedure and process tool equipment greatly, reduce productive costs, also shorten the manufacturing cycle of orienting lug, but obtain the better orienting lug of performance.
The present invention has also carried out compatibility again to the constituent of polyformaldehyde composite material and parts by weight thereof, adds the polytetrafluoroethylene of constant weight number, government rubber, fortifying fibre, metal powder and other auxiliary agent in polyformaldehyde matrix.
In polyformaldehyde matrix, add polytetrafluoroethylene form blend alloy, although mechanical property and the processing characteristics deterioration of polyformaldehyde composite material can be made, because polytetrafluoroethylene friction coefficient is less than polyformaldehyde, resistance to abrasion is better than polyformaldehyde, and its melt temperature is lower than polyformaldehyde.The surperficial upper strata of polyformaldehyde composite material can be segregated in, make the friction type between polyformaldehyde composite material surface and surface of friction pair be partially converted into the friction type between the surface of interpolation high molecular compound and surface of friction pair thus reduce, to the surperficial friction drag produced of polyformaldehyde composite material, to improve the wear resisting property of polyformaldehyde composite material.The polytetrafluoroethylene particle diameter that the present invention adds in polyformaldehyde matrix is extremely important for the performance of final modified effect, and its particle diameter is thinner, being uniformly dispersed in polyformaldehyde matrix, and the effect of performance is better.Therefore, the further preferred size of the present invention is by the polytetrafluoroethylene of 300 mesh sieves.
In polyformaldehyde matrix, add government rubber can produce good alloying effect to polyformaldehyde, improve the mechanical property of polyformaldehyde composite material.Because the compatibility of the application's polyformaldehyde composite material is reasonable, government rubber only needs to add above-mentioned parts by weight just can reach good effect.
Due to the mechanical property adding membership deterioration polyformaldehyde composite material and the processing characteristics of polytetrafluoroethylene, therefore, the present invention with the addition of fortifying fibre and metal powder again in polyformaldehyde composite material, to improve the mechanical property of polyformaldehyde composite material.
Above-mentioned a kind of in the holding device of tyre production equipment, in government rubber, acrylonitrile content is at 43-46%.In government rubber, acrylonitrile content is higher, and the solubility parameter of government rubber moves closer to polyformaldehyde, better with the compatibility of polyformaldehyde, makes alloy strength under shock intensity higher.
Above-mentioned a kind of in the holding device of tyre production equipment, fortifying fibre is one or more in glass fibre, carbon fiber, boron fiber, whisker, asbestos fiber and metal fibre.Preferably the diameter of fortifying fibre is less than 10 μm further, and length is 1-3mm.But, due to the molecular structure of fortifying fibre and polyformaldehyde basal body structure do not formed bond energy may, the application force be mixed with each other is only your gravitation of Van der Waals.In order to strengthen the application force between both mutual mixing, make both have molecular bond energy, fortifying fibre surface coupling agent processes by the present invention, plays the application force of " adding bridge " in fortifying fibre and polyformaldehyde matrix.For the selection of coupling agent, the present invention preferably has machine silane coupling agent further.
Above-mentioned a kind of in the holding device of tyre production equipment, fortifying fibre is whisker and one or more mixes in glass fibre, carbon fiber, boron fiber, asbestos fiber, metal fibre, and wherein, whisker accounts for the 40-60% of fortifying fibre total amount.
Because whisker is a kind of a kind of fiber grown into single crystal form with high strength, high-modulus and high elongation rate, its diameter very little (micron number magnitude), not containing the defect existed in usual material.Therefore, fortifying fibre of the present invention further preferably whisker and one or more mix in glass fibre, carbon fiber, boron fiber, asbestos fiber, metal fibre.More preferred whisker mixes with glass fibre, and whisker is potassium titanate crystal whisker, and glass fibre is E-glass fibre or the S-glass fibre of alkali-free.In order to make Cost And Performance relative equilibrium, whisker accounts for the 40-60% of fortifying fibre total amount.
Above-mentioned a kind of in the holding device of tyre production equipment, the one that metal powder is particle diameter in the copper powder of 100-500nm, zinc powder, iron powder.Metal powder can improve the heat transmissibility of polyformaldehyde composite material, friction and wear behavior, toughness, dimensional stability and creep resistance etc.And metal powder of the present invention, under the effect of dispersing agent and coupling agent, can be dispersed in polyformaldehyde matrix, improve state of interface between the two, and then improve the performance of polyformaldehyde composite material.Dispersing agent of the present invention can select the conventional dispersant such as TAS-2A.
The present invention also added the stabilizer of constant weight number in polyformaldehyde composite material.Because polyformaldehyde molecular backbone is formed by connecting by single C-O key, because on polyformaldehyde molecular backbone, two adjacent oxygen atoms have stronger activation to methene hydrogen atom, result in polyformaldehyde in melt-processed and use procedure, there is obvious depolymerization tendency, particularly large molecule very easily chain rupture under the effect being subject to heat, oxygen, stress, there is the degradation reaction of continuous piptonychia aldehyde, and decompose the formaldehyde that produces and promotion is decomposed by the micro-formic acid that generated by oxidation of formaldehyde, accelerate piptonychia aldehyde reaction, cause polyformaldehyde heat stability poor.Therefore, the present invention adds stabilizer and is tackled in polyformaldehyde composite material.Further preferred stabilizer is made up of antioxidant, formaldehyde absorbent and fomic acid absorber, and ratio of weight and number is 1:(1-2): (1-2).
The preparation method that the present invention adopts polyformaldehyde composite material to prepare orienting lug mainly comprises the following steps:
S1, take raw material according to the constituent of above-mentioned polyformaldehyde composite material and parts by weight, and polyformaldehyde is carried out drying and processing;
S2, above-mentioned raw materials is mixed after carry out extruding pelletization, obtain pellet;
S3, the barrel in high-speed injection molding machine is heated to 180-220 DEG C, then the above-mentioned pellet prepared is added in barrel, be heated to molten condition, then through nozzle injection in mould, after pressurize, cooling forming, prepare orienting lug.
In the preparation method of orienting lug of the present invention, in step S2 extruding pelletization process, expressing technique condition is: barrel temperature: feeding section: 160-170 DEG C, compression section: 170-180 DEG C, homogenizing zone: 175-190 DEG C; Die temperature is 150-160 DEG C; Screw speed is 15-25r/min.
In step S3 injection process, technological condition is: mould temperature temperature is 100-120 DEG C, and injection pressure is 80-110MPa, and dwell pressure is 60-80MPa, and the dwell time is 8-12s, and hardening time is 30-60s.
In addition, the drive link that the present invention is used in the holding device of tyre production equipment is made up of carbon fiber composite material, carbon fiber composite material forms primarily of following component (with weight parts): carbon fiber: 100 parts, epoxy resin: 60-90 part, reinforcer: 5-15 part, curing agent: 5-20 part, dispersing agent: 1-5 part.
The present invention's drive link be used in the holding device of tyre production equipment adopts carbon fiber composite material to make, and carbon fiber composite material is a kind of Lightweight high-strength composite material, function admirable.Being most widely used of resin matrix composite in carbon fiber composite material, wherein, the strength-to-density ratio of carbon fiber/epoxy resin based composites is nearly 20 times of cold-rolled steel, and specific modulus is 3 times of steel.Therefore, the composite material proportion be combined into by carbon fiber and epoxy resin is little, rigidity and intensity high, metallic material can be replaced completely to use.Therefore, the present invention selects carbon fiber composite material to replace metallic material to prepare drive link, not only can obtain that proportion is little, rigidity and the high drive link of intensity, can also avoid carrying out metalworking technique, save the expense such as manufacturing procedure and process tool equipment greatly, reduce productive costs, shorten the manufacturing cycle of drive link.
As preferably, carbon fiber is in advance through surface modification treatment, and processing technology for surface modification is: carbon fiber first after nitric acid pretreatment, then carries out modification with the surface modifier after ageing.
Because carbon fiber surface is movable and surface tension is lower, chemical inertness comparatively greatly, therefore, with the wellability of epoxy resin and interfacial combined function poor.Therefore, the carbon fiber composite material of excellent performance be obtained, surface modification must be carried out to carbon fiber, the interfacial combined function of itself and epoxy resin is improved.In prior art, carbon fiber is carried out often along with the condition such as high temperature, Strong oxdiative in the method for surface modification, etching and damage can be caused to carbon fiber, thus cause fibre strength to reduce, affect the final performance of goods.Therefore, the present invention is divided into pretreatment and modification two step to carbon fiber surface modification process, indispensable.In the present invention, carbon fiber first after nitric acid oxidation process, then carries out modification with the surface modifier after ageing.Because, research finds, carbon fiber after nitric acid oxidation process all adopts the surface modifier after ageing to carry out modification with the carbon fiber without nitric acid oxidation process, the composite material obtained finds after testing afterwards, and the intensity of the composite material that the carbon fiber after nitric acid treatment is made is the intensity more than 2.5 times of composite material obtained after directly carrying out surface modification without nitric acid oxidation process.
As preferably, surface modifier is by coupling agent, silester, solid acid 1:(0.4-0.6 in mass ratio): (0.01-0.03) forms.Surface modifier of the present invention adopts coupling agent and silester coupling, with solid acid position catalyst, a kind of carbon fiber surface modifier not needing the condition such as high temperature, Strong oxdiative is prepared by sol-gel process, therefore, the present invention, while not reducing carbon fiber mechanical property, effectively can improve the Interface adhesive strength of carbon fiber and epoxy resin.In the present invention, the preferred silane coupling agent of coupling agent, the preferred p-methyl benzenesulfonic acid of solid acid.
As preferably, epoxy resin is the epoxy resin after rubber elastomer toughening modifying.The epoxy resin that the present invention adopts is epoxy resin after rubber elastomer toughening modifying, its strength under shock and breaking elongation higher.
As preferably, reinforcer is particle diameter in the oxide of chromium of 50-100nm, aluminium oxide, carborundum, boron nitride, micro glass bead one or more.Reinforcer can reduce the productive costs of drive link, also can improve the performance such as intensity, fracture ductility of goods drive link simultaneously.But the enhancement effect of reinforcer depends on the compatibility of reinforcer and matrix.Therefore, the present invention with the addition of the dispersing agent of constant weight number accordingly, and reinforcer, can be in the base dispersed under the effect of dispersing agent, improves state of interface between the two, and then improves the performance of composite material.Dispersing agent of the present invention can select the conventional dispersant such as TAS-2A.
In addition, also have curing agent component in carbon fiber composite material of the present invention, curing agent is the one in methyl ethyl ketone peroxide, methyl tetrahydrophthalic anhydride, MDA.
The preparation method that the present invention adopts carbon fiber composite material to prepare drive link mainly comprises the following steps:
S1, by carbon fiber first after nitric acid pretreatment, then carry out modification with the surface modifier after ageing, obtained modified carbon fiber;
S2, then take above-mentioned obtained modified carbon fiber according to parts by weight and carry out ultrasonic disperse, then the epoxy resin adding constant weight number reacts 1-3h at 80-150 DEG C, fully stirs and obtain material after then adding a certain amount of reinforcer, dispersing agent and curing agent;
S3, above-mentioned material is injected mould, curing molding under 80-120 DEG C, 10-20MPa, the demoulding obtains drive link.
It is formulated by the following method that the present invention prepares surface modifier in the step S1 of drive link: first silester, solid acid are mixed in proportion to add in anhydrous ethanol solvent and stir and obtain solution A, a certain amount of coupling agent is added in anhydrous ethanol solvent also to stir simultaneously and obtain solution B, then solution B is slowly added drop-wise in solution A, stirs obtained surface modifier after leaving standstill.
The detailed process that the present invention prepares carbon fiber surface modification in the step S1 of drive link is: add in the carbon fibers and slowly add nitric acid, then condensing reflux 3-4h at 120-150 DEG C, process rear deionized water and absolute ethyl alcohol cleans to pH > 6 repeatedly, then at 60-80 DEG C, drying is placed on thermostatic constant wet chamber 20-30h, obtains pretreated carbon fiber.Then pretreated carbon fiber is immersed 5-10min in the surface modifier prepared, then lift with the speed of 5-8cm/min, then carbon fiber is sealed with preservative film, punch on preservative film after 20-30h, make the moisture in surface modifier absorption air, hydrolytie polycondensation is effectively carried out, in addition, can also prevent the film generated from ftractureing because rate of drying is too fast.Then preserve under constant temperature and humidity condition after 3-5 days and again carbon fiber is carried out drying, baking temperature is 70-80 DEG C, and programming rate is 0.25-0.5 DEG C/min.
Above-mentioned a kind of in the holding device of tyre production equipment, drive link comprises reversing gear, is arranged on the positive screw mandrel of reversing gear both sides and anti-screw mandrel, the axis of positive screw mandrel and anti-screw mandrel all with the dead in line of reversing gear, orienting lug is provided with two pieces and is symmetrically distributed in the both sides of reversing gear.
Above-mentioned a kind of in the holding device of tyre production equipment, orienting lug comprises guide plate and is connected in the jacking block on guide plate, and pilot hole is opened on guide plate.
Above-mentioned a kind of in the holding device of tyre production equipment, guide plate is in " U " font, and comprise two support edges and the top margin being connected two support edges, pilot hole is opened on top margin, jacking block is connected in the end of two support edges, and contiguous block is positioned at guide plate and is connected on top margin.
Compared with prior art, the present invention has following advantage:
1. drive orienting lug to reciprocatingly slide by drive link, orienting lug can be made to stretch out laterally or retract, thus clamp or unclamp tire, having stable behavior, control accuracy is high.
2. drive link arranges reversing gear and is arranged on the forward lead screw of reversing gear both sides, and the orienting lug that simultaneously can promote reversing gear both sides moves, uniform force, good stability.
3. " U " font is arranged to by guide plate, can be clipped in guide plate by contiguous block, and easy for installation, guidance quality is good.
4. orienting lug is made up of polyformaldehyde composite material, and the performances such as hardness, intensity, rigidity and resistance to abrasion are good, and cost is low.
5. drive link is made up of carbon fiber composite material, and proportion is little, rigidity and intensity is high, productive costs is low, the manufacturing cycle is short.
Accompanying drawing explanation
Fig. 1 is using state structural representation of the present invention.
Fig. 2 is detonation configuration schematic diagram of the present invention.
In figure, 1, drive link; 11, reversing gear; 12, anti-screw mandrel; 13, positive screw mandrel; 2, orienting lug; 21, guide plate; 211, top margin; 212, support edge; 213, pilot hole; 22, jacking block; 3, contiguous block; 31, tapped bore; 4, adapter plate; 5, supporting plate.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As depicted in figs. 1 and 2, a kind of holding device for tyre production equipment, holding device is arranged on adapter plate 4, holding device comprises: orienting lug 2, contiguous block 3 and drive link 1, orienting lug 2 offers pilot hole 213, contiguous block 3 offers tapped bore 31, and contiguous block 3 to be connected on orienting lug 2 and tapped bore 31 and pilot hole 213 coaxial line; Drive link 1 Matching installation is in tapped bore 31, drive link 1 can drive orienting lug 2 to move back and forth along the axis of drive link 1, and orienting lug 2 stretches out or retracts and can drive clamping or unclamp tire, carrys out gripping tire by the mode supported inside tire, there is bearing force strong, the effect of supporting & stablizing.
Drive link 1 comprises reversing gear 11, is arranged on positive screw mandrel 13 and the anti-screw mandrel 12 of reversing gear 11 both sides, the axis of positive screw mandrel 13 and anti-screw mandrel 12 all with the dead in line of reversing gear 11, the two ends of drive link 1 are erected on supporting plate 5, play the effect of support, orienting lug 2 is provided with two pieces and is symmetrically distributed in the both sides of reversing gear 11.Arrange positive screw mandrel 13 and anti-screw mandrel 12 when can make rotation reversing gear 11, be arranged on positive screw mandrel 13 and transmission stroke can be driven consistent with the orienting lug 2 on anti-screw mandrel 12 simultaneously, synchronism is good, good stability.
The jacking block 22 that orienting lug 2 comprises guide plate 21 and is connected on guide plate 21, pilot hole 213 is opened on guide plate 21, guide plate 21 is in " U " font, comprise two support edges 212 and the top margin 211 being connected two support edges 212, pilot hole 213 is opened on top margin 211, jacking block 22 is connected in the end of two support edges 212, and contiguous block 3 is positioned at guide plate 21 and is connected on top margin 211.Contiguous block 3 is arranged in guide plate 21, and install simple, working (finishing) area reduces, and reduce costs, contiguous block 3 is arranged separately, and the axis that conveniently can adjust the contiguous block 3 of reversing gear 11 both sides is consistent, and makes the stroke of orienting lug 2 consistent.
Wherein, above-mentioned orienting lug 2 is made up of polyformaldehyde composite material, polyformaldehyde composite material forms primarily of following composition (with weight parts): POM:100 part, polytetrafluoroethylene: 15-30 part, government rubber: 10-20 part, fortifying fibre: 20-40 part, metal powder: 5-15 part, coupling agent: 1-5 part, dispersing agent: 1-3 part, stabilizer: 1-5 part.
Above-mentioned drive link 1 is made up of carbon fiber composite material, carbon fiber composite material forms primarily of following component (with weight parts): carbon fiber: 100 parts, epoxy resin: 60-90 part, reinforcer: 5-15 part, curing agent: 5-20 part, dispersing agent: 1-5 part.
Embodiment prepared by orienting lug:
Table 1: embodiment 1-4 prepares constituent and the parts by weight thereof of the polyformaldehyde composite material of orienting lug
Embodiment 1:
Raw material is taken according to the constituent of embodiment in table 11 polyformaldehyde composite material and parts by weight.In raw material: the process of polyformaldehyde drying, the granularity of polytetrafluoroethylene is by 300 mesh sieves, in government rubber, acrylonitrile content is 45%, fortifying fibre is that diameter is less than 10 μm, length is the mixing of E-glass fibre by weight 1:1 of the potassium titanate crystal whisker of 1-3mm and alkali-free, metal powder is the iron powder of particle diameter at 100-500nm, coupling agent is organo silane coupling agent, dispersing agent is TAS-2A, stabilizer by antioxidant, formaldehyde absorbent and fomic acid absorber by ratio of weight and the number of copies for 1:1:1 mixes.
Then carry out extruding pelletization after being mixed by above-mentioned raw materials, obtain pellet.In extruding pelletization process, expressing technique condition is: barrel temperature: feeding section: 160 DEG C, compression section: 170 DEG C, homogenizing zone: 175 DEG C; Die temperature is 150 DEG C; Screw speed is 15r/min.
Finally, barrel in high-speed injection molding machine is heated to 180 DEG C, then the above-mentioned pellet prepared is added in barrel, be heated to molten condition, then be in 100 DEG C of moulds through nozzle injection to temperature, injection pressure is 80MPa, pressurize 8s under 60MPa pressure, prepares orienting lug after cooling 30s is shaping.
Embodiment 2:
Raw material is taken according to the constituent of embodiment in table 12 polyformaldehyde composite material and parts by weight.In raw material: the process of polyformaldehyde drying, the granularity of polytetrafluoroethylene is by 300 mesh sieves, in government rubber, acrylonitrile content is 45%, fortifying fibre is that diameter is less than 10 μm, length is the mixing of E-glass fibre by weight 1:1 of the potassium titanate crystal whisker of 1-3mm and alkali-free, metal powder is the iron powder of particle diameter at 100-500nm, coupling agent is organo silane coupling agent, dispersing agent is TAS-2A, stabilizer by antioxidant, formaldehyde absorbent and fomic acid absorber by ratio of weight and the number of copies for 1:1:1 mixes.
Then carry out extruding pelletization after being mixed by above-mentioned raw materials, obtain pellet.In extruding pelletization process, expressing technique condition is: barrel temperature: feeding section: 165 DEG C, compression section: 175 DEG C, homogenizing zone: 180 DEG C; Die temperature is 155 DEG C; Screw speed is 18r/min.
Finally, barrel in high-speed injection molding machine is heated to 200 DEG C, then the above-mentioned pellet prepared is added in barrel, be heated to molten condition, then be in 110 DEG C of moulds through nozzle injection to temperature, injection pressure is 90MPa, and pressurize 10s under 65MPa pressure, prepares orienting lug after cold 40s is shaping.
Embodiment 3:
Raw material is taken according to the constituent of embodiment in table 13 polyformaldehyde composite material and parts by weight.In raw material: the process of polyformaldehyde drying, the granularity of polytetrafluoroethylene is by 300 mesh sieves, in government rubber, acrylonitrile content is 45%, fortifying fibre is that diameter is less than 10 μm, length is the mixing of the potassium titanate crystal whisker of 1-3mm and the E-glass fibre of alkali-free, potassium titanate accounts for 40% of fortifying fibre, metal powder is the iron powder of particle diameter at 100-500nm, coupling agent is organo silane coupling agent, dispersing agent is TAS-2A, stabilizer by antioxidant, formaldehyde absorbent and fomic acid absorber by ratio of weight and the number of copies for 1:1:1 mixes.
Then carry out extruding pelletization after being mixed by above-mentioned raw materials, obtain pellet.In extruding pelletization process, expressing technique condition is: barrel temperature: feeding section: 168 DEG C, compression section: 176 DEG C, homogenizing zone: 185 DEG C; Die temperature is 158 DEG C; Screw speed is 20r/min.
Finally, barrel in high-speed injection molding machine is heated to 210 DEG C, then the above-mentioned pellet prepared is added in barrel, be heated to molten condition, then be in 115 DEG C of moulds through nozzle injection to temperature, injection pressure is 100MPa, pressurize 11s under 70MPa pressure, prepares orienting lug after cooling 50s is shaping.
Embodiment 4:
Raw material is taken according to the constituent of embodiment in table 14 polyformaldehyde composite material and parts by weight.In raw material: the process of polyformaldehyde drying, the granularity of polytetrafluoroethylene is by 300 mesh sieves, in government rubber, acrylonitrile content is 45%, fortifying fibre is that diameter is less than 10 μm, length is the mixing of the potassium titanate crystal whisker of 1-3mm and the E-glass fibre of alkali-free, potassium titanate accounts for 60% of fortifying fibre, metal powder is the iron powder of particle diameter at 100-500nm, coupling agent is organo silane coupling agent, dispersing agent is TAS-2A, stabilizer by antioxidant, formaldehyde absorbent and fomic acid absorber by ratio of weight and the number of copies for 1:1:1 mixes.
Then carry out extruding pelletization after being mixed by above-mentioned raw materials, obtain pellet.In extruding pelletization process, expressing technique condition is: barrel temperature: feeding section: 170 DEG C, compression section: 180 DEG C, homogenizing zone: 190 DEG C; Die temperature is 160 DEG C; Screw speed is 25r/min.
Finally, barrel in high-speed injection molding machine is heated to 220 DEG C, then the above-mentioned pellet prepared is added in barrel, be heated to molten condition, then be in 120 DEG C of moulds through nozzle injection to temperature, injection pressure is 110MPa, pressurize 12s under 80MPa pressure, prepares orienting lug after cooling 60s is shaping.
Comparative example 1 is only with the difference of embodiment 2: the material of comparative example 1 orienting lug is commercially available common fiberglass-reinforced polyformaldehyde material.
Comparative example 2 is only with the difference of embodiment 2: the acrylonitrile content of comparative example 2 Raw government rubber is 40%.
Comparative example 3 is only with the difference of embodiment 2: the particle diameter of comparative example 3 Raw polytetrafluoroethylene is 200 orders.
The orienting lug that above-described embodiment 1-4 and comparative example 1-3 is obtained carries out performance testing, and test result is as shown in table 2.
Table 2: the performance test results
As known from Table 2, polyformaldehyde composite material compatibility of the present invention is reasonable, and the performance of the orienting lug made obviously will be better than the performance of the orienting lug that common polyformaldehyde composite material is made.Because from comparative example 2 and comparative example 3, in raw material, the factor such as the acrylonitrile content of government rubber and the particle diameter of raw material polytetrafluoroethylene all has very large impact to the performance of polyformaldehyde composite material.
The difference of embodiment 5-8 and embodiment 1-4 is only: in government rubber, acrylonitrile content is 43%.
The difference of embodiment 9-12 and embodiment 1-4 is only: in government rubber, acrylonitrile content is 44%.
The difference of embodiment 13-16 and embodiment 1-4 is only: in government rubber, acrylonitrile content is 46%.
The difference of embodiment 16-32 and embodiment 1-16 is only: metal powder is the copper powder of particle diameter at 100-500nm.
The difference of embodiment 33-48 and embodiment 1-16 is only: metal powder is the zinc powder of particle diameter at 100-500nm.
The difference of embodiment 49-96 and embodiment 1-48 is only: stabilizer by antioxidant, formaldehyde absorbent and fomic acid absorber by ratio of weight and the number of copies for 1:2:2 mixes.
The difference of embodiment 97-192 and embodiment 1-96 is only: fortifying fibre is glass fibre.
The difference of embodiment 193-288 and embodiment 1-96 is only: fortifying fibre is carbon fiber.
The difference of embodiment 289-384 and embodiment 1-96 is only: fortifying fibre is boron fiber.
The difference of embodiment 385-480 and embodiment 1-96 is only: fortifying fibre is whisker.
The difference of embodiment 481-576 and embodiment 1-96 is only: fortifying fibre is asbestos fiber.
The difference of embodiment 577-672 and embodiment 1-96 is only: fortifying fibre is metal fibre.
Embodiment 673-768 is only with the difference of embodiment 1-96: fortifying fibre is mixing of the S-glass fibre of potassium titanate crystal whisker and alkali-free.
Embodiment 769-864 is only with the difference of embodiment 1-96: fortifying fibre is mixing of potassium titanate crystal whisker and carbon fiber.
Embodiment 865-960 is only with the difference of embodiment 1-96: fortifying fibre is mixing of potassium titanate crystal whisker and boron fiber.
Embodiment 961-1056 is only with the difference of embodiment 1-96: fortifying fibre is mixing of potassium titanate crystal whisker and asbestos fiber.
Embodiment 1057-1152 is only with the difference of embodiment 1-96: fortifying fibre is mixing of potassium titanate crystal whisker and metal fibre.
Drive link prepares embodiment:
Table 3: embodiment 1-4 prepares constituent and the parts by weight thereof of the carbon fiber composite material of drive link
Embodiment 1:
Take raw material by embodiment in table 31, raw material epoxy resin is the epoxy resin after rubber elastomer toughening modifying, and reinforcer is the carborundum of particle diameter at 50-100nm, and dispersing agent is TAS-2A, and curing agent is methyl ethyl ketone peroxide.
Simultaneously, preparation surface modifier: first silester, solid acid are mixed in proportion to add in anhydrous ethanol solvent and stir and obtain solution A, a certain amount of coupling agent is added in anhydrous ethanol solvent also to stir simultaneously and obtain solution B, then solution B is slowly added drop-wise in solution A, stir obtained surface modifier after leaving standstill, coupling agent, silester, solid acid 1:0.5:0.02 in mass ratio in surface modifier.
Then, by carbon fiber in raw material first through modification, the process of modification is: add in the carbon fibers and slowly add nitric acid, then condensing reflux 3h at 120 DEG C, process rear deionized water and absolute ethyl alcohol cleans to pH > 6 repeatedly, then at 60 DEG C, drying is placed on thermostatic constant wet chamber 30h, obtains pretreated carbon fiber.Then pretreated carbon fiber is immersed 5min in the surface modifier prepared, then lift with the speed of 5cm/min, then carbon fiber is sealed with preservative film, punch on preservative film after 20h, make the moisture in surface modifier absorption air, hydrolytie polycondensation is effectively carried out, in addition, can also prevent the film generated from ftractureing because rate of drying is too fast.Then preserve under constant temperature and humidity condition after 3 days and again carbon fiber is carried out drying, baking temperature is 80 DEG C, and programming rate is 0.25 DEG C/min.
Then obtained modified carbon fiber is carried out ultrasonic disperse, then add epoxy resin and react 3h at 80 DEG C, fully stir after then adding reinforcer, dispersing agent and curing agent and obtain material.Finally material is injected mould, at 80 DEG C, curing molding under 20MPa, the demoulding obtains drive link.
Embodiment 2:
Take raw material by embodiment in table 32, raw material epoxy resin is the epoxy resin after rubber elastomer toughening modifying, and reinforcer is the carborundum of particle diameter at 50-100nm, and dispersing agent is TAS-2A, and curing agent is methyl ethyl ketone peroxide.
Simultaneously, preparation surface modifier: first silester, solid acid are mixed in proportion to add in anhydrous ethanol solvent and stir and obtain solution A, a certain amount of coupling agent is added in anhydrous ethanol solvent also to stir simultaneously and obtain solution B, then solution B is slowly added drop-wise in solution A, stir obtained surface modifier after leaving standstill, coupling agent, silester, solid acid 1:0.5:0.02 in mass ratio in surface modifier.
Then, by carbon fiber in raw material first through modification, the process of modification is: add in the carbon fibers and slowly add nitric acid, then condensing reflux 4h at 130 DEG C, process rear deionized water and absolute ethyl alcohol cleans to pH > 6 repeatedly, then at 70 DEG C, drying is placed on thermostatic constant wet chamber 25h, obtains pretreated carbon fiber.Then pretreated carbon fiber is immersed 6min in the surface modifier prepared, then lift with the speed of 6cm/min, then carbon fiber is sealed with preservative film, punch on preservative film after 25h, make the moisture in surface modifier absorption air, hydrolytie polycondensation is effectively carried out, in addition, can also prevent the film generated from ftractureing because rate of drying is too fast.Then preserve under constant temperature and humidity condition after 4 days and again carbon fiber is carried out drying, baking temperature is 75 DEG C, and programming rate is 0.3 DEG C/min.
Then obtained modified carbon fiber is carried out ultrasonic disperse, then add epoxy resin and react 2h at 100 DEG C, fully stir after then adding reinforcer, dispersing agent and curing agent and obtain material.Finally material is injected mould, at 100 DEG C, curing molding under 15MPa, the demoulding obtains drive link.
Embodiment 3:
Take raw material by embodiment in table 33, raw material epoxy resin is the epoxy resin after rubber elastomer toughening modifying, and reinforcer is the carborundum of particle diameter at 50-100nm, and dispersing agent is TAS-2A, and curing agent is methyl ethyl ketone peroxide.
Simultaneously, preparation surface modifier: first silester, solid acid are mixed in proportion to add in anhydrous ethanol solvent and stir and obtain solution A, a certain amount of coupling agent is added in anhydrous ethanol solvent also to stir simultaneously and obtain solution B, then solution B is slowly added drop-wise in solution A, stir obtained surface modifier after leaving standstill, coupling agent, silester, solid acid 1:0.5:0.02 in mass ratio in surface modifier.
Then, by carbon fiber in raw material first through modification, the process of modification is: add in the carbon fibers and slowly add nitric acid, then condensing reflux 4h at 140 DEG C, process rear deionized water and absolute ethyl alcohol cleans to pH > 6 repeatedly, then at 75 DEG C, drying is placed on thermostatic constant wet chamber 28h, obtains pretreated carbon fiber.Then pretreated carbon fiber is immersed 8min in the surface modifier prepared, then lift with the speed of 7cm/min, then carbon fiber is sealed with preservative film, punch on preservative film after 28h, make the moisture in surface modifier absorption air, hydrolytie polycondensation is effectively carried out, in addition, can also prevent the film generated from ftractureing because rate of drying is too fast.Then preserve under constant temperature and humidity condition after 4 days and again carbon fiber is carried out drying, baking temperature is 76 DEG C, and programming rate is 0.4 DEG C/min.
Then obtained modified carbon fiber is carried out ultrasonic disperse, then add epoxy resin and react 2h at 120 DEG C, fully stir after then adding reinforcer, dispersing agent and curing agent and obtain material.Finally material is injected mould, at 110 DEG C, curing molding under 16MPa, the demoulding obtains drive link.
Embodiment 4:
Take raw material by embodiment in table 34, raw material epoxy resin is the epoxy resin after rubber elastomer toughening modifying, and reinforcer is the carborundum of particle diameter at 50-100nm, and dispersing agent is TAS-2A, and curing agent is methyl ethyl ketone peroxide.
Simultaneously, preparation surface modifier: first silester, solid acid are mixed in proportion to add in anhydrous ethanol solvent and stir and obtain solution A, a certain amount of coupling agent is added in anhydrous ethanol solvent also to stir simultaneously and obtain solution B, then solution B is slowly added drop-wise in solution A, stir obtained surface modifier after leaving standstill, coupling agent, silester, solid acid 1:0.5:0.02 in mass ratio in surface modifier.
Then, by carbon fiber in raw material first through modification, the process of modification is: add in the carbon fibers and slowly add nitric acid, then condensing reflux 4h at 150 DEG C DEG C, process rear deionized water and absolute ethyl alcohol cleans to pH > 6 repeatedly, then at 80 DEG C, drying is placed on thermostatic constant wet chamber 20h, obtains pretreated carbon fiber.Then pretreated carbon fiber is immersed 10min in the surface modifier prepared, then lift with the speed of 8cm/min, then carbon fiber is sealed with preservative film, punch on preservative film after 30h, make the moisture in surface modifier absorption air, hydrolytie polycondensation is effectively carried out, in addition, can also prevent the film generated from ftractureing because rate of drying is too fast.Then preserve under constant temperature and humidity condition after 5 days and again carbon fiber is carried out drying, baking temperature is 70 DEG C, and programming rate is 0.25 DEG C/min.
Then obtained modified carbon fiber is carried out ultrasonic disperse, then add epoxy resin and react 1h at 150 DEG C, fully stir after then adding reinforcer, dispersing agent and curing agent and obtain material.Finally material is injected mould, at 120 DEG C, curing molding under 10MPa, the demoulding obtains drive link.
Comparative example 1 is only with the difference of embodiment 3: in comparative example 1 during carbon fiber surface modification process not through nitric acid pretreatment.
Comparative example 2 is only with the difference of embodiment 3: in comparative example 2, carbon fiber surface modification is treated to oxidation treatment.
Comparative example 3 is only with the difference of embodiment 3: the epoxy resin of comparative example 3 is ordinary epoxy resin.
The drive link that embodiment of the present invention 1-4 and comparative example 1-3 is obtained carries out performance testing, and test result is as shown in table 4.
Table 4, the performance test results
As known from Table 4, component in carbon fiber composite material of the present invention and parts by weight thereof are all very large to the performance impact of the end article of carbon fiber composite material, when the constituent of carbon fiber composite material and parts by weight thereof are within the scope of the application, the performance of goods drive link is better.
The difference of embodiment 5-8 and embodiment 1-4 is only, coupling agent, silester, solid acid 1:0.4:0.01 in mass ratio in surface modifier.
The difference of embodiment 9-12 and embodiment 1-4 is only, coupling agent, silester, solid acid 1:0.4:0.02 in mass ratio in surface modifier.
The difference of embodiment 13-16 and embodiment 1-4 is only, coupling agent, silester, solid acid 1:0.4:0.03 in mass ratio in surface modifier.
The difference of embodiment 17-20 and embodiment 1-4 is only, coupling agent, silester, solid acid 1:0.5:0.01 in mass ratio in surface modifier.
The difference of embodiment 21-24 and embodiment 1-4 is only, coupling agent, silester, solid acid 1:0.5:0.03 in mass ratio in surface modifier.
The difference of embodiment 25-28 and embodiment 1-4 is only, coupling agent, silester, solid acid 1:0.6:0.01 in mass ratio in surface modifier.
The difference of embodiment 29-32 and embodiment 1-4 is only, coupling agent, silester, solid acid 1:0.6:0.02 in mass ratio in surface modifier.
The difference of embodiment 33-36 and embodiment 1-4 is only, coupling agent, silester, solid acid 1:0.6:0.03 in mass ratio in surface modifier.
The difference of embodiment 37-72 and embodiment 1-36 is only, curing agent is methyl tetrahydrophthalic anhydride.
The difference of embodiment 73-108 and embodiment 1-36 is only, curing agent is MDA.
The difference of embodiment 109-216 and embodiment 1-108 is only, reinforcer is oxide of chromium.
The difference of embodiment 217-324 and embodiment 1-108 is only, reinforcer is aluminium oxide.
The difference of embodiment 325-432 and embodiment 1-108 is only, reinforcer is boron nitride.
The difference of embodiment 433-540 and embodiment 1-108 is only, reinforcer is micro glass bead.
The difference of embodiment 541-648 and embodiment 1-108 is only, reinforcer is oxide of chromium and carborundum mixing in mass ratio for 1:1.
The difference of embodiment 649-756 and embodiment 1-108 is only, reinforcer is carborundum, boron nitride, micro glass bead is the mixing of 1:1:1 in mass ratio.
The difference of embodiment 757-864 and embodiment 1-108 is only, reinforcer is oxide of chromium, aluminium oxide, carborundum, boron nitride is the mixing of 1:1:1:1 in mass ratio.
The difference of embodiment 865-972 and embodiment 1-108 is only, reinforcer is oxide of chromium, aluminium oxide, carborundum, boron nitride, micro glass bead is the mixing of 1:1:1:1:1 in mass ratio.
The non-limit part of technical scope midrange that this place embodiment is protected application claims, equally all in the scope of protection of present invention.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although made a detailed description the present invention and quoted some specific embodiments as proof, to those skilled in the art, only otherwise it is obvious for leaving that the spirit and scope of the present invention can make various changes or revise.
Claims (10)
1. for a holding device for tyre production equipment, it is characterized in that, comprising:
Orienting lug, described orienting lug offers pilot hole;
Contiguous block, described contiguous block offers tapped bore, and described contiguous block to be connected on orienting lug and tapped bore and pilot hole coaxial line;
Drive link, described drive link Matching installation is in tapped bore, and described drive link can drive orienting lug to move back and forth along the axis of drive link.
2. a kind of holding device for tyre production equipment according to claim 1, it is characterized in that, described orienting lug is made up of polyformaldehyde composite material.
3. a kind of holding device for tyre production equipment according to claim 2, it is characterized in that, described polyformaldehyde composite material forms primarily of following composition (with weight parts): POM:100 part, polytetrafluoroethylene: 15-30 part, government rubber: 10-20 part, fortifying fibre: 20-40 part, metal powder: 5-15 part, coupling agent: 1-5 part, dispersing agent: 1-3 part, stabilizer: 1-5 part.
4. a kind of holding device for tyre production equipment according to claim 3, it is characterized in that, in described government rubber, acrylonitrile content is at 43-46%.
5. a kind of holding device for tyre production equipment according to claim 3, is characterized in that, described fortifying fibre is one or more in glass fibre, carbon fiber, boron fiber, whisker, asbestos fiber and metal fibre.
6. a kind of holding device for tyre production equipment according to claim 5, it is characterized in that, described fortifying fibre is whisker and one or more mixes in glass fibre, carbon fiber, boron fiber, asbestos fiber, metal fibre, wherein, described whisker accounts for the 40-60% of fortifying fibre total amount.
7. a kind of holding device for tyre production equipment according to claim 3, is characterized in that, the one that described metal powder is particle diameter in the copper powder of 100-500nm, zinc powder, iron powder.
8. a kind of holding device for tyre production equipment according to claim 1, it is characterized in that, described drive link comprises reversing gear, is arranged on the positive screw mandrel of reversing gear both sides and anti-screw mandrel, the axis of described positive screw mandrel and anti-screw mandrel all with the dead in line of reversing gear, described orienting lug is provided with two pieces and is symmetrically distributed in the both sides of reversing gear.
9. a kind of holding device for tyre production equipment according to claim 1 or 8, is characterized in that, described orienting lug comprises guide plate and is connected in the jacking block on guide plate, and described pilot hole is opened on guide plate.
10. a kind of holding device for tyre production equipment according to claim 9, it is characterized in that, described guide plate is in " U " font, comprise two support edges and the top margin being connected two support edges, described pilot hole is opened on top margin, described jacking block is connected in the end of two support edges, and described contiguous block is positioned at guide plate and is connected on top margin.
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| EP1059148A2 (en) * | 1999-06-08 | 2000-12-13 | Bridgestone Corporation | Tire chuck apparatus and method for gripping a tire |
| CN202528367U (en) * | 2012-01-19 | 2012-11-14 | 江苏益尔机电有限公司 | Stable type lifting mechanical arm for dual-tire shaper vulcanizer |
| CN103253095A (en) * | 2013-05-17 | 2013-08-21 | 浙江大学 | Manipulator for automobile tire and expanding method of manipulator |
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Effective date of registration: 20160516 Address after: 315000 Zhejiang Province, Ningbo city Haishu District cypress Road No. 89 Applicant after: Ningbo University of Technology Applicant after: Zhejiang Cotan Tyre Co., Ltd. Address before: 315000 Zhejiang Province, Ningbo city Haishu District cypress Road No. 89 Applicant before: Ningbo University of Technology |
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