CN104526928A - Mold and machining method of polyurethane solid tire - Google Patents
Mold and machining method of polyurethane solid tire Download PDFInfo
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- CN104526928A CN104526928A CN201510027330.4A CN201510027330A CN104526928A CN 104526928 A CN104526928 A CN 104526928A CN 201510027330 A CN201510027330 A CN 201510027330A CN 104526928 A CN104526928 A CN 104526928A
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Abstract
The invention relates to a mold and a machining method of a polyurethane solid tire and belongs to the technical field of machining of solid tires. A lower pattern module is formed by splicing a plurality of lower pattern blocks (5) along the circumferential direction, wherein the lower pattern blocks (5) are arranged in a lower fixed seat (6) in a sliding manner by a lower pattern block guiding mechanism, and the lower pattern block guiding mechanism is used for driving the lower pattern blocks (5) to radially move to the outer side when the lower pattern blocks (5) slide upwards. In an mold opening process, the lower pattern blocks (5) radially move to the outer side while sliding upwards and are mutually separated to be separated from a tire, so that the tire can be conveniently taken out from a tire mold cavity. According to the machining method of the polyurethane solid tire, bubbles in raw materials can be extruded out; by virtue of two vulcanization processes, the wear-resisting property of the produced polyurethane low-speed solid tire is equal to 5-10 times of that of a normal tire, and the bearing force is large, so that the common problems of block falling and cracking of a rubber solid tire are solved, an impression is avoided during braking, and the tire is environmentally friendly and clean.
Description
Technical field
The mould of polyurethane solid tyre and processing method thereof, belong to the processing technique field of solid tyre.
Background technology
Existing pu tire mainly contains two kinds of forms; One is only utilize polyurethane to do outside that one deck wearing layer is coated on rubber inner tube, to increase the anti-wear performance of tire, retains the partial elastic of inner rubber simultaneously.But this form does not still solve the problems such as the rubber life-span is short, easy to crack, still often occurs the phenomenon of inner tyre leakage; Two is that common interior aerated rubber tyre inside is filled with foamed urethane material, this foamed polyurethane is merely as rubber tyre inside stuffing, although successfully solve the problem of rubber gas leakage, outer layer rubber tire be not wear-resisting, problem that oil resistant, service life are not short could not solve; When producing polyurethane solid tyre need the raw material of liquid state to utilize die casting shaping, but be also applicable at present the mould producing polyurethane solid tyre, and existing tire-mold to get tire when die sinking more difficult, be not easy to cleaning.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provides a kind of easy to operate, mould of polyurethane solid tyre of being convenient to take out solid tyre, can be taken out by tire very easily, be convenient to clear up mould during die sinking; A kind of method utilizing this Making mold polyurethane solid tyre is also provided.
The technical solution adopted for the present invention to solve the technical problems is: the mould of this polyurethane solid tyre, comprise wheel hub module, decorative pattern module, counterdie and patrix, wheel hub module is vertically arranged, decorative pattern module coaxial sleeve is located at the outside of wheel hub module, an annular tire die cavity is formed between wheel hub module and decorative pattern module, counterdie sealing is fixed on the downside of tire die cavity, and patrix is pressed on the upside of tire die cavity downwards;
Described decorative pattern module comprises the upper decorative pattern module and lower decorative pattern module of docking up and down, upper decorative pattern module installation is in the inside circumference of an annular upper fixed seat, lower decorative pattern module installation is in the inside circumference of an annular lower fixed seat, guide-localization mechanism is provided with between upper fixed seat and lower fixed seat, decorative pattern module is wherein descended along the circumferential direction to be spliced to form by multiple lower pattern block, and lower pattern block is slidably arranged in lower fixed seat by lower pattern block guiding mechanism, lower pattern block guiding mechanism makes lower pattern block while upward sliding, produce displacement to radial outside.When die sinking, mention patrix and upper decorative pattern module, when getting tire, lower pattern block produces the displacement to radial outside while upward sliding, thus make lower pattern block be separated from each other and depart from tire, be convenient to tire to take out from tyre mould chamber, and the convenient cleaning to mould.
Preferably, the die sinking spring promoting lower pattern block and slide obliquely upward along lower pattern block guiding mechanism is provided with between described lower pattern block and lower fixed seat.During die sinking, after mentioning patrix and upper decorative pattern module, die sinking spring promotes lower pattern block and tire moves up, and is automatically ejected by tire, and due to this at present pattern block be separated from each other and departed from tire, tire can be taken out very easily, easy to operate.
Preferably, described upper decorative pattern module is along the circumferential direction spliced to form by multiple upper pattern block, upper pattern block is slidably arranged in upper fixed seat by upper pattern block guiding mechanism, produces the displacement to radial outside while upper pattern block guiding mechanism makes pattern block slide downward.On mentioning during decorative pattern module, the automatic slide downward of pattern block on each, lower pattern block is separated from each other and departs from tire, prevents going up pattern block during die sinking mutually bonding with tire, is convenient to die sinking, easy to operate.
Preferably, described wheel hub module comprises wheel hub module and lower hub module, lower hub module is coaxially fixed on the upside of counterdie, upper wheel hub module is coaxially fixed on the upside of lower hub module, be provided with center positioning mechanism between upper wheel hub module and lower hub module, patrix concentric locking collar is in the outside of upper wheel hub module.When die sinking, upper wheel hub module is separated with lower hub module, tire is convenient to take out between upper wheel hub module and lower hub module, before cast when fit on wheel hub module and lower hub module, the axiality of upper wheel hub module and lower hub module can be ensured by center positioning mechanism, ensure that the inside dimensions precision of tire meets the requirements, easy to assembly.
Preferably, the medial surface of described lower fixed seat is the conical surface, and the lateral surface of lower pattern block is the conical surface matched with lower fixed seat medial surface; Described lower pattern block guiding mechanism comprises the lower guideway be obliquely installed, and lower guideway is fixed on inside lower fixed seat by lower steady pin, lower pattern block offers the lower gathering sill coordinated with lower guideway.Lower pattern block is coordinated with the medial surface of the lower fixed seat conical surface by the lateral surface of the conical surface, guarantees lower pattern block working stability, avoids lower pattern block Fast Wearing.
Preferably, the bottom lock of described lower gathering sill is arranged, and lower guideway lower end abuts with the bottom of lower gathering sill and realizes the spacing of lower pattern block.By carrying out spacing to lower pattern block bottom lower gathering sill, prevent lower pattern block from coming off, structure is simple, reliable operation.
A processing method for polyurethane solid tyre, comprises the mould of above-mentioned polyurethane solid tyre, comprises the following steps:
Step 1, the raw material that preparation is liquid;
Step 2, opens patrix, is poured into by raw material in tire die cavity;
Step 3, when raw material soon solidify, be pressed on by patrix on the upside of tire die cavity, at 110 ~ 120 DEG C, sulfuration 2.5 ~ 4 hours, then mentions patrix;
Step 4, mentions decorative pattern module, is taken out by tire from tyre mould chamber, and tire is put into vulcanization oven recure 8 ~ 16 hours at 110 ~ 120 DEG C.Refer to former material being poured in tire die cavity after 3 ~ 8 minutes when raw material soon solidify, patrix is pressed on the upside of tire die cavity, in the process avoiding patrix to press down, the raw material of liquid state are extruded tire die cavity, preferably, apply a downward pressure to patrix, this pressure is 8 ~ 15MPa, thus is extruded away by the bubble in raw material, executing the stressed time is 25 ~ 35 minutes, the timing from raw material are poured in tire die cavity of the cure time in step 3.Tyre vulcanizing of the present invention uses the method for post-cure, directly carry out during a sulfuration only doing basic sulfuration in the short period of time in tire casting mold, post-cure is then transferred to vulcanization oven sulfuration completely within the longer time, thoroughly the performance of firm tire.The polyurethane low speed solid tyre of this explained hereafter, anti-wear performance is 5 ~ 10 times of General Purpose Rubber.Carrying is large, solve solid rubber tyre common fall block and breach problem, and can accomplish to run brake without impression, environment protection clean.
Preferably, step 1 specifically comprises the following steps:
Step 101, prepares performed polymer: the PEPA of 0.8 ~ 1.5 weight portion is carried out dehydration, and controlling dehydration temperature is 110 ~ 120 DEG C, and the reaction time is 3.5 ~ 4.5 hours; Then the toluene di-isocyanate(TDI) hybrid reaction at 70 DEG C ~ 90 DEG C adding 0.15 ~ 0.25 weight portion obtains performed polymer;
Step 102, drops into A, B tank of casting machine respectively by the curing agent component of the performed polymer in step 101 and 0.1 ~ 0.15 weight portion, be mixed to get liquid raw material by above-mentioned weight ratio.What the present invention adopted is prepolymer method, and PEPA mixes with curing agent component with after TDI complete reaction again, and the time that the pre-polymerization physical efficiency that this method obtains is deposited is long, and its properties of product are stablized, and are convenient to accomplish scale production.
Preferably, curing agent component described in step 102 is dimethythiotoluene diamine, BD14 and DMEP 1:(3 ~ 6 in mass ratio): the mixed curing agent that (1 ~ 3) prepares;
The preparation technology of curing agent component is: first according to quality than curing agent BD14: dimethythiotoluene diamine: get the raw materials ready in DMEP=1:3 ~ 6:1 ~ 3; Curing agent BD14 and plasticizer DMEP is carried out dehydration 3.5 ~ 4 hours at 100 ~ 110 DEG C; Then mix with DMTDA and obtain curing agent component.The polyurethane hardness that formula of the present invention obtains is adjustable from 30 ~ 90 degree; Hot strength reaches 40Mpa, is 2.2 times (intensity that draws high of rubber tyre is 18Mpa) of rubber; Elongation at break reaches 810%, is 1.8 times (elongation at break of solid rubber tyre is 450%) of rubber; Akron abrasion loss is only 0.1, and the abrasion loss of rubber tyre is 4 times (Akron abrasion loss of solid rubber tyre is 0.4) of pu tire; And resilience reaches 30, be 1.5 times (resilience of solid rubber tyre is 20) of rubber.The above-mentioned performance of the polyurethane that formula of the present invention obtains makes this polyurethane namely reach anti-wear performance needed for surface of tyre, there is again the elasticity being suitable as tire inner core, this just makes polyurethane of the present invention can obtain a kind of inside and outside material and the identical one solid tyre of performance, and make present invention process that tire casting mold can be utilized to carry out one-time cast-forming to be further achieved, to simplify the production technology of tire greatly.
Compared with prior art, the beneficial effect that the present invention has is:
1, the mould of this polyurethane solid tyre is applicable to liquid starting material moulding by casting solid tyre mold, when die sinking, mention patrix and upper decorative pattern module, when getting tire, lower pattern block produces the displacement to radial outside while upward sliding, thus make lower pattern block be separated from each other and depart from tire, be convenient to tire to take out from tyre mould chamber, and the convenient cleaning to mould.
2, the die sinking spring promoting lower pattern block and slide obliquely upward along lower pattern block guiding mechanism is provided with between lower pattern block and lower fixed seat, during die sinking, after mentioning patrix and upper decorative pattern module, die sinking spring promotes lower pattern block and tire moves up, automatically tire is ejected, and due to this at present pattern block be separated from each other and departed from tire, tire can be taken out very easily, easy to operate.
3, upper decorative pattern module is along the circumferential direction spliced to form by multiple upper pattern block, the displacement to radial outside is produced while upper pattern block guiding mechanism makes pattern block slide downward, on mentioning during decorative pattern module, the automatic slide downward of pattern block on each, lower pattern block is separated from each other and departs from tire, prevent going up pattern block during die sinking mutually bonding with tire, be convenient to die sinking, easy to operate.
4, when raw material soon solidify, patrix is pressed on the upside of tire die cavity, in the process avoiding patrix to press down, the raw material of liquid state is extruded tire die cavity, apply a downward pressure to patrix, thus the bubble in raw material is extruded away; Tyre vulcanizing of the present invention uses the method for post-cure, directly carry out during a sulfuration only doing basic sulfuration in the short period of time in tire casting mold, post-cure is then transferred to vulcanization oven sulfuration completely within the longer time, thoroughly the performance of firm tire.The polyurethane low speed solid tyre of this explained hereafter, anti-wear performance is 5 ~ 10 times of General Purpose Rubber.Carrying is large, solve solid rubber tyre common fall block and breach problem, and can accomplish to run brake without impression, environment protection clean.
5, the polyurethane hardness adjustable extent that invention formula is obtained is large; Hot strength, elongation at break are high; Akron abrasion dose-effect, resilience is large, has both met the wear-resisting of outer surface of tire and bearing requirements, and has met again the aeroelastic requirements of tire inner core, and oil resistant loses, does not ftracture, do not fall soon.The solid tyre interior exterior materials coordinating once-cast technique of the present invention to obtain, performance are completely the same.Tire wear performance reaches 5 ~ 10 times of rubber, and carrying is large, solves rubber product and easily falls block, cracking, and brake leaves the problems such as sharp trace.Production equipment is existing common apparatus, technology maturation, and can realize lot-sizeization very soon and produce, properties of product are adjustable, can regulate formula according to the loading vehicles of different purposes and engineering truck.Easy to operate in technique, adopt one-time cast-forming technique, shorten the production line length of tire greatly, improve production efficiency, saved manpower and materials.Use vehicle operating to be environment protection clean, be specially adapted to the industries such as the comparatively strict food of environmentally-friendly sanitary conditional request, electronics, medicine.
Accompanying drawing explanation
Fig. 1 is the sectional view of the mould of this polyurethane solid tyre.
Fig. 2 is the top view of lower decorative pattern module.
Fig. 3 is the structural representation of lower guideway.
Wherein: 1, patrix 2, upper mounted plate 3, upper fixed seat 4, upper pattern block 5, lower pattern block 6, lower fixed seat 7, bottom plate 8, upper wheel hub module 9, upper gathering sill 10, upper rail 11, lower guideway 12, lower gathering sill 13, lower hub module 14, upper wheel hub positioning disk 15, lower hub positioning disk 16, counterdie 17, tire die cavity.
Detailed description of the invention
Fig. 1 ~ 3 are the mould of this polyurethane solid tyre and the most preferred embodiment of processing method thereof, and below in conjunction with accompanying drawing 1 ~ 3, the present invention will be further described.
With reference to Fig. 1 ~ 2, the mould of this polyurethane solid tyre, comprise wheel hub module, decorative pattern module, counterdie 16 and patrix 1, wheel hub module is vertically arranged, decorative pattern module coaxial sleeve is located at the outside of wheel hub module, between wheel hub module and decorative pattern module, form an annular tire die cavity 17, counterdie 16 sealing is fixed on the downside of tire die cavity 17, and patrix 1 is pressed on the upside of tire die cavity 17 downwards;
Decorative pattern module comprises the upper decorative pattern module and lower decorative pattern module of docking up and down, upper decorative pattern module installation is in the inside circumference of an annular upper fixed seat 3, lower decorative pattern module installation is in the inside circumference of an annular lower fixed seat 6, guide-localization mechanism (not shown in FIG.) is provided with between upper fixed seat 3 and lower fixed seat 6, decorative pattern module is wherein descended along the circumferential direction to be spliced to form by multiple lower pattern block 5, and lower pattern block 5 is slidably arranged in lower fixed seat 6 by lower pattern block guiding mechanism, lower pattern block guiding mechanism makes lower pattern block 5 while upward sliding, produce displacement to radial outside.When die sinking, mention patrix 1 and upper decorative pattern module, when getting tire, lower pattern block 5 produces the displacement to radial outside while upward sliding, thus make lower pattern block 5 be separated from each other and depart from tire, be convenient to tire to take out from tyre mould chamber 17, and the convenient cleaning to mould.Guide-localization mechanism is the locating hole be opened on lower fixed seat 6 and the alignment pin be fixed on upper fixed seat 3, and in the process that upper fixed seat 3 declines, alignment pin inserts the accurate location realizing upper fixed seat 3 and lower fixed seat 6 in locating hole.The upside of upper fixed seat 6 is fixed with a square upper mounted plate 2 in the present embodiment, and the downside of lower fixed seat 6 is fixed with a square bottom plate 7, is provided with the retaining mechanism mutually clamped between upper mounted plate 2 and bottom plate 7.
Concrete, with reference to Fig. 1, as further improvement of the present invention, be provided with the die sinking spring promoting lower pattern block 5 and slide obliquely upward along lower pattern block guiding mechanism between lower pattern block 5 and lower fixed seat 6, during die sinking, after mentioning patrix 1 and upper decorative pattern module, die sinking spring promotes lower pattern block 5 and tire moves up, and is automatically ejected by tire, and due to this at present pattern block 5 be separated from each other and departed from tire, tire can be taken out very easily, easy to operate.Die sinking spring adopts brute spring, and thrust is large, and reliable operation, meets need of production, and long service life.
With reference to Fig. 2 ~ 3, lower pattern block guiding mechanism comprises the lower guideway 11 be obliquely installed, lower guideway 11 is fixed on inside lower fixed seat 6 by lower steady pin, lower pattern block 5 offers the lower gathering sill 12 coordinated with lower guideway 11, preferably, the cross section of lower guideway 11 is T-shaped, and lower gathering sill 12 cross section is also T-shaped, lower guideway 11 is arranged in lower gathering sill 12, lower pattern block 5 by lower gathering sill 12 along lower guideway 11 tilt slide.The medial surface of lower fixed seat 6 is the conical surface, and the lateral surface of lower pattern block 5 is the conical surfaces matched with lower fixed seat 6 medial surface.Lower pattern block 5 is coordinated with the medial surface of lower fixed seat 6 conical surface by the lateral surface of the conical surface, guarantees lower pattern block 5 working stability, avoids lower pattern block 5 Fast Wearing.The bottom lock of lower gathering sill 12 is arranged, and lower guideway 11 lower end abuts with the bottom of lower gathering sill 12 and realizes the spacing of lower pattern block 5.By carrying out spacing to lower pattern block 5 bottom lower gathering sill 12, prevent lower pattern block 5 from coming off, structure is simple, reliable operation.
Identical with the structure of lower decorative pattern module is, upper decorative pattern module is also along the circumferential direction be spliced to form by multiple upper pattern block 4, upper pattern block 4 is slidably arranged in upper fixed seat 3 by upper pattern block guiding mechanism, produces the displacement to radial outside while upper pattern block guiding mechanism makes pattern block 4 slide downward.On mentioning during decorative pattern module, pattern block 4 slide downward automatically on each, lower pattern block 5 is separated from each other and departs from tire, prevents going up pattern block 4 during die sinking mutually bonding with tire, is convenient to die sinking, easy to operate.Go up pattern block 4 in the present embodiment and be 23 pieces with lower pattern block 5.
With reference to Fig. 3, upper pattern block guiding mechanism comprises the upper rail 10 be obliquely installed, upper rail 10 is fixed on inside upper fixed seat 3 by upper steady pin, upper pattern block 4 offers the upper gathering sill 9 coordinated with upper rail 10, preferably, the cross section of upper rail 10 is T-shaped, upper gathering sill 9 cross section is also T-shaped, upper rail 10 is arranged in gathering sill 9, upper pattern block 4 by upper gathering sill 9 along upper rail 10 tilt slide, further, the medial surface of upper fixed seat 3 is the conical surface, the lateral surface of upper pattern block 4 is the conical surfaces matched with upper fixed seat 3 medial surface, upper pattern block 4 is coordinated with the medial surface of upper fixed seat 3 conical surface by the lateral surface of the conical surface, guarantee upper pattern block 4 working stability, avoid pattern block 4 Fast Wearing.The bottom lock of upper gathering sill 9 is arranged, and upper rail 10 lower end abuts with the bottom of upper gathering sill 9 and realizes the spacing of pattern block 4.By carrying out spacing to upper pattern block 4 bottom upper gathering sill 9, prevent pattern block 4 from coming off, structure is simple, reliable operation.
Wheel hub module comprises wheel hub module 8 and lower hub module 13, lower hub module 13 is coaxially fixed on the upside of counterdie 16, upper wheel hub module 8 is coaxially fixed on the upside of lower hub module 13, be provided with center positioning mechanism between upper wheel hub module 8 and lower hub module 13, patrix 1 concentric locking collar is in the outside of upper wheel hub module 8.When die sinking, upper wheel hub module 8 is separated with lower hub module 13, tire is convenient to take out between upper wheel hub module 8 and lower hub module 13, before cast when fit on wheel hub module 8 and lower hub module 13, the axiality of upper wheel hub module 8 and lower hub module 13 can be ensured by center positioning mechanism, ensure that the inside dimensions precision of tire meets the requirements, easy to assembly.
Center positioning mechanism comprises wheel hub positioning disk 14 and lower hub positioning disk 15, in the present invention, upper wheel hub module 8 and lower hub module 13 are the cylindrical shape of hollow, upper wheel hub positioning disk 14 is fixed on the lower end of wheel hub module 8, lower hub positioning disk 15 is fixed on the upper end of lower hub module 13, groove is offered on the downside of the middle part of upper wheel hub positioning disk 14, the boss with fit depressions is provided with on the upside of the middle part of lower hub module 13, preferably, groove and convex edge of table are the conical surface, in the process that upper wheel hub module 8 is docked with lower hub module 13, the groove of upper wheel hub positioning disk 14 coordinates with the boss automatic capturing of lower hub positioning disk 15, in realization, wheel hub module 8 and lower hub module 13 automatic center are located.
A processing method for polyurethane solid tyre, comprises the mould of above-mentioned polyurethane solid tyre, comprises the following steps:
Step 1, the raw material that preparation is liquid;
Step 2, opens patrix 1, is poured into by raw material in tire die cavity 17;
Step 3, when raw material soon solidify, the present embodiment former material is being poured into tire die cavity 17 after interior 5 minutes, is being pressed on by patrix 1 on the upside of tire die cavity 17, preferably, a downward pressure is applied to patrix 1, this pressure is 10MPa, thus is extruded away by the bubble in raw material, and executing the stressed time is 30 minutes, at 110 ~ 120 DEG C, sulfuration 2.5 ~ 4 hours, then mentions patrix 1;
Step 4, mentions decorative pattern module, is taken out by tire from tyre mould chamber 17, and tire is put into vulcanization oven recure 8 ~ 16 hours at 110 ~ 120 DEG C.Can be former material being poured in tire die cavity 17 after 3 ~ 8 minutes when raw material soon solidify, patrix 1 is pressed on the upside of tire die cavity 17, in the process avoiding patrix 1 to press down, the raw material of liquid state are extruded tire die cavity 17, applying a downward pressure to patrix 1 can be 8 ~ 15MPa, thus the bubble in raw material is extruded away, executing the stressed time can be 25 ~ 35 minutes, and the cure time in step 3 is timing from raw material are poured in tire die cavity 17.Tyre vulcanizing of the present invention uses the method for post-cure, directly carry out during a sulfuration only doing basic sulfuration in the short period of time in tire casting mold, post-cure is then transferred to vulcanization oven sulfuration completely within the longer time, thoroughly the performance of firm tire.The polyurethane low speed solid tyre of this explained hereafter, anti-wear performance is 5 ~ 10 times of General Purpose Rubber.Carrying is large, solve solid rubber tyre common fall block and breach problem, and can accomplish to run brake without impression, environment protection clean.
Preferably, step 1 specifically comprises the following steps:
Step 101, prepares performed polymer: the PEPA of 0.8 ~ 1.5 weight portion is carried out dehydration, and controlling dehydration temperature is 110 ~ 120 DEG C, and the reaction time is 3.5 ~ 4.5 hours; Then the toluene di-isocyanate(TDI) hybrid reaction at 70 DEG C ~ 90 DEG C adding 0.15 ~ 0.25 weight portion obtains performed polymer;
Step 102, drops into A, B tank of casting machine respectively by the curing agent component of the performed polymer in step 101 and 0.1 ~ 0.15 weight portion, be mixed to get liquid raw material by above-mentioned weight ratio.What the present invention adopted is prepolymer method, and PEPA mixes with curing agent component with after TDI complete reaction again, and the time that the pre-polymerization physical efficiency that this method obtains is deposited is long, and its properties of product are stablized, and are convenient to accomplish scale production.
Preferably, curing agent component described in step 102 is dimethythiotoluene diamine, BD14 and DMEP 1:(3 ~ 6 in mass ratio): the mixed curing agent that (1 ~ 3) prepares;
The preparation technology of curing agent component is: first according to quality than curing agent BD14: dimethythiotoluene diamine: get the raw materials ready in DMEP=1:3 ~ 6:1 ~ 3; Curing agent BD14 and plasticizer DMEP is carried out dehydration 3.5 ~ 4 hours at 100 ~ 110 DEG C; Then mix with DMTDA and obtain curing agent component.The polyurethane hardness that formula of the present invention obtains is adjustable from 30 ~ 90 degree; Hot strength reaches 40Mpa, is 2.2 times (intensity that draws high of rubber tyre is 18Mpa) of rubber; Elongation at break reaches 810%, is 1.8 times (elongation at break of solid rubber tyre is 450%) of rubber; Akron abrasion loss is only 0.1, and the abrasion loss of rubber tyre is 4 times (Akron abrasion loss of solid rubber tyre is 0.4) of pu tire; And resilience reaches 30, be 1.5 times (resilience of solid rubber tyre is 20) of rubber.The above-mentioned performance of the polyurethane that formula of the present invention obtains makes this polyurethane namely reach anti-wear performance needed for surface of tyre, there is again the elasticity being suitable as tire inner core, this just makes polyurethane of the present invention can obtain a kind of inside and outside material and the identical one solid tyre of performance, and make present invention process that tire casting mold can be utilized to carry out one-time cast-forming to be further achieved, to simplify the production technology of tire greatly.
Upper decorative pattern module in the present invention can also be the structure fixing with upper fixed seat 3 one.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (9)
1. the mould of a polyurethane solid tyre, it is characterized in that: comprise wheel hub module, decorative pattern module, counterdie (16) and patrix (1), wheel hub module is vertically arranged, decorative pattern module coaxial sleeve is located at the outside of wheel hub module, an annular tire die cavity (17) is formed between wheel hub module and decorative pattern module, counterdie (16) sealing is fixed on the downside of tire die cavity (17), and patrix (1) is pressed on the upside of tire die cavity (17) downwards;
Described decorative pattern module comprises the upper decorative pattern module and lower decorative pattern module of docking up and down, upper decorative pattern module installation is in the inside circumference of an annular upper fixed seat (3), lower decorative pattern module installation is in the inside circumference of an annular lower fixed seat (6), guide-localization mechanism is provided with between upper fixed seat (3) and lower fixed seat (6), decorative pattern module is wherein descended along the circumferential direction to be spliced to form by multiple lower pattern block (5), and lower pattern block (5) is slidably arranged in lower fixed seat (6) by lower pattern block guiding mechanism, lower pattern block guiding mechanism makes lower pattern block (5) while upward sliding, produce displacement to radial outside.
2. the mould of polyurethane solid tyre according to claim 1, is characterized in that: be provided with the die sinking spring promoting lower pattern block (5) and slide obliquely upward along lower pattern block guiding mechanism between described lower pattern block (5) and lower fixed seat (6).
3. the mould of polyurethane solid tyre according to claim 1, it is characterized in that: described upper decorative pattern module is along the circumferential direction spliced to form by multiple upper pattern block (4), upper pattern block (4) is slidably arranged in upper fixed seat (3) by upper pattern block guiding mechanism, produces the displacement to radial outside while upper pattern block guiding mechanism makes pattern block (4) slide downward.
4. the mould of polyurethane solid tyre according to claim 1, it is characterized in that: described wheel hub module comprises wheel hub module (8) and lower hub module (13), lower hub module (13) is coaxially fixed on the upside of counterdie (16), upper wheel hub module (8) is coaxially fixed on the upside of lower hub module (13), be provided with center positioning mechanism between upper wheel hub module (8) and lower hub module (13), patrix (1) concentric locking collar is in the outside of upper wheel hub module (8).
5. the mould of polyurethane solid tyre according to claim 1, is characterized in that: the medial surface of described lower fixed seat (6) is the conical surface, and the lateral surface of lower pattern block (5) is the conical surface matched with lower fixed seat (6) medial surface; Described lower pattern block guiding mechanism comprises the lower guideway (11) be obliquely installed, and lower guideway (11) is fixed on lower fixed seat (6) inner side by lower steady pin, lower pattern block (5) offers the lower gathering sill (12) coordinated with lower guideway (11).
6. the mould of polyurethane solid tyre according to claim 5, is characterized in that: the bottom lock of described lower gathering sill (12) is arranged, and lower guideway (11) lower end abuts with the bottom of lower gathering sill (12) and realizes the spacing of lower pattern block (5).
7. a processing method for polyurethane solid tyre, is characterized in that, comprises the mould of the polyurethane solid tyre described in any one of claim 1 ~ 6, comprises the following steps:
Step 1, the raw material that preparation is liquid;
Step 2, opens patrix (1), is poured into by raw material in tire die cavity (17);
Step 3, when raw material soon solidify, patrix (1) is pressed on tire die cavity (17) upside, sulfuration 2.5 ~ 4 hours at 110 ~ 120 DEG C, then mentions patrix (1);
Step 4, mentions decorative pattern module, is taken out by tire from tyre mould chamber (17), and tire is put into vulcanization oven recure 8 ~ 16 hours at 110 ~ 120 DEG C.
8. the method for manufacture polyurethane solid tyre according to claim 7, is characterized in that: step 1 specifically comprises the following steps:
Step 101, prepares performed polymer: the PEPA of 0.8 ~ 1.5 weight portion is carried out dehydration, and controlling dehydration temperature is 110 ~ 120 DEG C, and the reaction time is 3.5 ~ 4.5 hours; Then the toluene di-isocyanate(TDI) hybrid reaction at 70 DEG C ~ 90 DEG C adding 0.15 ~ 0.25 weight portion obtains performed polymer;
Step 102, drops into A, B tank of casting machine respectively by the curing agent component of the performed polymer in step 101 and 0.1 ~ 0.15 weight portion, be mixed to get liquid raw material by above-mentioned weight ratio.
9. the method for manufacture polyurethane solid tyre according to claim 8, is characterized in that: curing agent component described in step 102 is dimethythiotoluene diamine, BD14 and DMEP 1:(3 ~ 6 in mass ratio): the mixed curing agent that (1 ~ 3) prepares;
The preparation technology of curing agent component is: first according to quality than curing agent BD14: dimethythiotoluene diamine: get the raw materials ready in DMEP=1:3 ~ 6:1 ~ 3; Curing agent BD14 and plasticizer DMEP is carried out dehydration 3.5 ~ 4 hours at 100 ~ 110 DEG C; Then mix with DMTDA and obtain curing agent component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510027330.4A CN104526928B (en) | 2015-01-20 | 2015-01-20 | Mold and machining method of polyurethane solid tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510027330.4A CN104526928B (en) | 2015-01-20 | 2015-01-20 | Mold and machining method of polyurethane solid tire |
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| Publication Number | Publication Date |
|---|---|
| CN104526928A true CN104526928A (en) | 2015-04-22 |
| CN104526928B CN104526928B (en) | 2017-02-22 |
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| CN201510027330.4A Expired - Fee Related CN104526928B (en) | 2015-01-20 | 2015-01-20 | Mold and machining method of polyurethane solid tire |
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| CN (1) | CN104526928B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108262909A (en) * | 2018-03-16 | 2018-07-10 | 青岛双星橡塑机械有限公司 | The pouring molding device of polyurethane product and pouring molding method |
| CN109605789A (en) * | 2018-12-07 | 2019-04-12 | 青岛双星轮胎工业有限公司 | A kind of non-inflatable tyre and moulding process |
| CN110053196A (en) * | 2019-05-28 | 2019-07-26 | 山东豪迈机械科技股份有限公司 | A kind of guiding device and tyre adjustable die |
| CN110142993A (en) * | 2019-04-25 | 2019-08-20 | 浙江三锋实业股份有限公司 | A kind of injection molding forming method of garden instrument tire |
| CN110921470A (en) * | 2019-12-17 | 2020-03-27 | 山东泰安煤矿机械有限公司 | Rotating wheel device for roller cage shoe of mine hoisting container, preparation method of rotating wheel device and cage shoe roller device |
| CN111873327A (en) * | 2020-08-01 | 2020-11-03 | 袁胜凡 | Tire mold and anti-tire-falling baby carrier wheel produced by same |
| CN112743808A (en) * | 2020-12-03 | 2021-05-04 | 陈嘉惠 | Polymer rubber tire thermoforming equipment for new material |
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| US4164251A (en) * | 1975-04-21 | 1979-08-14 | The Goodyear Tire & Rubber Company | Polyurethane tire and wheel assembly |
| CN201313369Y (en) * | 2008-12-17 | 2009-09-23 | 常州市羊氏模具有限公司 | Perpendicular plate segmented mold |
| CN201530072U (en) * | 2009-08-24 | 2010-07-21 | 厦门升正机械有限公司 | Mold capable of producing solid tyres with complicated patterns |
| JP2011031452A (en) * | 2009-07-31 | 2011-02-17 | Bridgestone Corp | Method for manufacturing retreaded tire, mold for manufacturing retreaded tire and vulcanizer |
| CN204431600U (en) * | 2015-01-20 | 2015-07-01 | 淄博赛通聚氨酯有限公司 | The mould of polyurethane solid tyre |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4164251A (en) * | 1975-04-21 | 1979-08-14 | The Goodyear Tire & Rubber Company | Polyurethane tire and wheel assembly |
| CN201313369Y (en) * | 2008-12-17 | 2009-09-23 | 常州市羊氏模具有限公司 | Perpendicular plate segmented mold |
| JP2011031452A (en) * | 2009-07-31 | 2011-02-17 | Bridgestone Corp | Method for manufacturing retreaded tire, mold for manufacturing retreaded tire and vulcanizer |
| CN201530072U (en) * | 2009-08-24 | 2010-07-21 | 厦门升正机械有限公司 | Mold capable of producing solid tyres with complicated patterns |
| CN204431600U (en) * | 2015-01-20 | 2015-07-01 | 淄博赛通聚氨酯有限公司 | The mould of polyurethane solid tyre |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108262909A (en) * | 2018-03-16 | 2018-07-10 | 青岛双星橡塑机械有限公司 | The pouring molding device of polyurethane product and pouring molding method |
| CN108262909B (en) * | 2018-03-16 | 2023-08-11 | 青岛海琅智能装备有限公司 | Pouring molding device and pouring molding method for polyurethane product |
| CN109605789A (en) * | 2018-12-07 | 2019-04-12 | 青岛双星轮胎工业有限公司 | A kind of non-inflatable tyre and moulding process |
| CN110142993A (en) * | 2019-04-25 | 2019-08-20 | 浙江三锋实业股份有限公司 | A kind of injection molding forming method of garden instrument tire |
| CN110053196A (en) * | 2019-05-28 | 2019-07-26 | 山东豪迈机械科技股份有限公司 | A kind of guiding device and tyre adjustable die |
| CN110921470A (en) * | 2019-12-17 | 2020-03-27 | 山东泰安煤矿机械有限公司 | Rotating wheel device for roller cage shoe of mine hoisting container, preparation method of rotating wheel device and cage shoe roller device |
| CN111873327A (en) * | 2020-08-01 | 2020-11-03 | 袁胜凡 | Tire mold and anti-tire-falling baby carrier wheel produced by same |
| CN112743808A (en) * | 2020-12-03 | 2021-05-04 | 陈嘉惠 | Polymer rubber tire thermoforming equipment for new material |
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| CN104526928B (en) | 2017-02-22 |
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