CN114591621A - Preparation method of solvent-free modified TPU (thermoplastic polyurethane) plastic track material - Google Patents
Preparation method of solvent-free modified TPU (thermoplastic polyurethane) plastic track material Download PDFInfo
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- CN114591621A CN114591621A CN202210316068.5A CN202210316068A CN114591621A CN 114591621 A CN114591621 A CN 114591621A CN 202210316068 A CN202210316068 A CN 202210316068A CN 114591621 A CN114591621 A CN 114591621A
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- plastic track
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- 239000000463 material Substances 0.000 title claims abstract description 74
- 229920003023 plastic Polymers 0.000 title claims abstract description 25
- 239000004033 plastic Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000004433 Thermoplastic polyurethane Substances 0.000 title description 11
- 229920002803 thermoplastic polyurethane Polymers 0.000 title description 11
- 238000003756 stirring Methods 0.000 claims abstract description 102
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 16
- 229920000570 polyether Polymers 0.000 claims abstract description 16
- 229920005862 polyol Polymers 0.000 claims abstract description 16
- 150000003077 polyols Chemical class 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims abstract description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 7
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003999 initiator Substances 0.000 claims abstract description 7
- 239000012188 paraffin wax Substances 0.000 claims abstract description 7
- 239000004014 plasticizer Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 5
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000005303 weighing Methods 0.000 claims description 8
- 230000001737 promoting effect Effects 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000007790 scraping Methods 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 150000001412 amines Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a preparation method of a solvent-free modified TPU plastic track material, which comprises the following steps: 24-34 parts of 2000 molecular weight polyether polyol, 10-16 parts of 400 molecular weight polyether polyol, 6-12 parts of plasticizer, 14-20 parts of long-chain paraffin, 60-90 parts of 400-mesh talcum powder, 6-16 parts of silica powder, 1-2.6 parts of light magnesium oxide, 0.2-0.4 part of toner, 10-20 parts of dimethyl carbonate, a certain amount of initiator and 8-18 parts of diphenylmethane diisocyanate. According to the invention, the annular rack on the inner side of the stirring bin can drive the three groups of second gears to rotate simultaneously, the three groups of stirring blades can be driven to move up and down, the top and the bottom of the material can be stirred, and simultaneously, the three groups of second gears are driven to revolve under the action of the bottom plate, so that the stirring range of the material is further enlarged, the stirring is more complete, the stirring time is shortened, and the problem of the quality of a subsequent plastic track is prevented.
Description
Technical Field
The invention relates to the technical field of preparation of polyurethane plastic sports grounds, in particular to a preparation method of a solvent-free modified TPU plastic track material.
Background
The existing plastic material for the sports ground generally uses a polyurethane elastic technology, and polyurethane prepolymer, various polyether polyols, amine chain extenders, powder materials and the like are mixed to prepare the prepolymer in the production process by using polyether polyol and isocyanate. When the court is paved on site, a proper amount of drier and the like are added to accelerate the reaction, and the court is made.
Current plastic track materials have deficiencies when mixed:
1. when the existing materials are mixed, as a common stirring mechanism is usually stirred towards the same direction and at the same horizontal height during stirring, the materials cannot be well stirred at the bottom or other positions during stirring, so that the materials are not uniformly mixed, the quality of a runway is reduced during subsequent pavement, and the runway is easier to damage;
2. when raw materials are added, the proportion of each part of the material needs to be accurately controlled, the quality of the runway in use can be caused due to uneven proportion of the material, but the existing method generally weighs the material in advance, so that multiple devices are needed to be matched;
3. simultaneously when the material ejection of compact to stirring the completion, because the material has stirred the step that has carried out the heating that the completion, the texture stickness that leads to between the material is great, and the velocity of flow is slower when the ejection of compact simultaneously, leads to comparatively delaying time in the ejection of compact, and very easy material solidifies inside the discharge gate simultaneously and leads to the jam of discharge gate.
Disclosure of Invention
The invention aims to provide a preparation method of a solvent-free modified TPU plastic track material, so as to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the preparation method of the solvent-free modified TPU plastic track material comprises the following steps: 24-34 components of 2000 molecular weight polyether polyol, 10-16 components of 400 molecular weight polyether polyol, 6-12 components of plasticizer, 14-20 components of long chain paraffin, 60-90 components of 400 mesh talcum powder, 6-16 components of silica powder, 1-2.6 components of light magnesium oxide, 0.2-0.4 component of toner, 10-20 components of dimethyl carbonate, a certain amount of initiator and 8-18 components of diphenylmethane diisocyanate, and the preparation method specifically comprises the following steps:
firstly, heating the interior of equipment to 50-70 ℃, then adding 2000 molecular weight polyether polyol, 400 molecular weight polyether polyol, a plasticizer and long-chain paraffin into the equipment, and opening the equipment for stirring;
secondly, stirring to a certain degree in the first step, adding a certain amount of initiator, adding 400-mesh talcum powder, silicon micropowder, toner and light magnesium oxide on the basis of the first step, stirring and heating to more than 100 ℃;
thirdly, vacuumizing the interior of the equipment to vacuum, wherein the pressure of the vacuum in the equipment is-0.08 kPa;
fourthly, stopping heating the interior of the equipment, reducing the temperature in the equipment to 80-90 ℃, adding diphenylmethane diisocyanate, and carrying out heat preservation reaction for 2-3 hours to obtain the material.
The invention also comprises equipment for a preparation method of the solvent-free modified TPU plastic track material, which comprises a stirring bin, wherein the top of the stirring bin is provided with a driving motor, the output end of the driving motor is provided with a bottom plate, the outer side of the bottom plate is provided with three groups of first gears, one side of the three groups of first gears, which is far away from the bottom plate, is provided with an Contraband template, the outer side of the Contraband template is sleeved with a stirring blade, one side of the Contraband template, which is far away from the first gear, is provided with a connecting shaft, one side of the connecting shaft, which is far away from the bottom plate, is provided with a second gear, the top of the inner side of the stirring bin is provided with an annular rack, the top of the outer side of the stirring blade is provided with a third gear, the bottoms of the three groups of stirring blades are provided with a material promoting component, the two sides of the stirring bin are provided with material weighing components, the bottom of the inner side of the stirring bin is provided with a heating plate, and the bottom of the stirring bin is provided with a discharge hole, the middle positions of the two sides of the stirring bin are provided with support rods, and the outer sides of the support rods are provided with a plurality of groups of balancing weights.
Preferably, the title material subassembly is including adding feed bin, spout, spacing slide bar, placing pole, fly leaf, connection rope, inlet pipe, roof, pulley, it is located one side in stirring storehouse to add the feed bin, it is provided with the spout to add the inboard bottom in feed bin, the inside slip of spout is provided with the roof, the both sides at roof top are provided with the connection rope, the both sides at adding feed bin top and the top of both sides all are provided with the pulley, it establishes in the two sets of pulley outsides to connect the rope cover, and is two sets of the other end of connecting the rope is provided with the fly leaf, one side at fly leaf top is provided with places the pole, it is provided with the inlet pipe to add one side that feed bin is close to stirring storehouse, the both ends of adding feed bin bottom are provided with spacing slide bar.
Preferably, it includes connecting plate, draw-in groove, scraper blade, kelly, mounting panel, telescopic link, piston and sleeve pipe to promote the material subassembly, the connecting plate is located the bottom of stirring leaf, the bottom of connecting plate is provided with the sleeve pipe, the inside both sides of sleeve pipe are provided with the draw-in groove, the inside cover of sheathed tube is equipped with the telescopic link, the both sides of telescopic link are provided with the mounting panel, one side of mounting panel bottom is provided with the scraper blade, the bottom of telescopic link is provided with the piston, the inside slip of telescopic link is provided with two sets of kellies, and is two sets of one side that the kelly is close to each other is provided with the spring, and is two sets of the kelly outside cover is equipped with the stop collar.
Preferably, one side of the clamping rod, which is far away from the spring, is provided with a groove, and the limiting sleeve is positioned inside the groove.
Preferably, a through groove is formed in the middle of one side of the movable plate, and the through groove supporting rods are matched with each other.
Preferably, limiting baffle rings are arranged on two sides of the outer side of the Contraband template, and the stirring blades are positioned between the two groups of baffle rings.
Preferably, the first gear and the third gear are at ninety degrees to each other, and the first gear and the third gear are meshed with each other.
Preferably, the stirring blade comprises a stirring rod and a sleeve block, and the stirring rod and the sleeve block are connected through a bearing.
Preferably, the placing rod and the supporting rod are located at the same horizontal position, and the placing rod is matched with the balancing weight.
Compared with the prior art, the invention provides a preparation method of a solvent-free modified TPU plastic track material, which has the following beneficial effects:
1. according to the invention, the annular rack on the inner side of the stirring bin can drive the three groups of second gears to rotate simultaneously, and can drive the three groups of stirring blades to move up and down, so that the top and the bottom of the material can be stirred, and simultaneously, under the action of the bottom plate, the three groups of second gears are driven to revolve, so that the stirring range of the material is further enlarged, the stirring is more complete, the stirring time is reduced, and the problem of the quality of a subsequent plastic track is prevented;
2. when each material is added, the balancing weight blocks slide to the outer side of the placing rod by utilizing the material weighing assembly, the required number of the balancing weight blocks is added according to the required mass, when the material reaches the required weight, the top plate automatically slides downwards at the moment, the material slides to the inner part of the stirring bin through the feeding pipe under the action of the inclined edge to be mixed, the weight of each material can be automatically controlled, the steps of increasing the weight are reduced, meanwhile, the use of weighing equipment is reduced, and the investment cost is reduced;
3. when the materials are mixed completely in the stirring bin, the materials need to be discharged, the stirring blades continuously move up and down at the moment to drive the connecting plate to move up and down in the stirring bin, the clamping rod is clamped in the clamping groove to drive the piston to move up and down in the stirring bin, the piston extrudes the materials downwards when moving downwards, and meanwhile, the scraping plates scrape the interior of the stirring bin to push the materials to approach the discharge opening to accelerate the discharge speed.
Drawings
FIG. 1 is a front cross-sectional view of the present invention;
FIG. 2 is a top view of the base plate of the present invention;
FIG. 3 is a top view of the movable plate of the present invention;
FIG. 4 is a front cross-sectional view of the material weighing assembly of the present invention;
FIG. 5 is a front cross-sectional view of an actuator assembly of the present invention;
fig. 6 is an enlarged view of a of fig. 1 according to the present invention.
In the figure: 1. a stirring bin; 2. a material weighing component; 201. a feeding bin; 202. a chute; 203. a limiting slide bar; 204. placing a rod; 205. a movable plate; 206. connecting ropes; 207. a feed pipe; 208. a top plate; 209. a pulley; 3. a material promotion component; 301. a connecting plate; 302. a card slot; 303. a squeegee; 304. a clamping rod; 305. mounting a plate; 306. a telescopic rod; 307. a piston; 308. a sleeve; 309. a limiting sleeve; 310. a spring; 4. a drive motor; 5. a base plate; 6. a first gear; 7. a second gear; 8. an annular rack; 9. a third gear; 10. heating plates; 11. a discharge port; 12. stirring blades; 13. a balancing weight; 14. a support bar; 15. contraband template; 16. and (7) connecting the shafts.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides the following technical solutions: the preparation method of the solvent-free modified TPU plastic track material comprises the following steps: 24-34 components of 2000 molecular weight polyether polyol, 10-16 components of 400 molecular weight polyether polyol, 6-12 components of plasticizer, 14-20 components of long chain paraffin, 60-90 components of 400 mesh talcum powder, 6-16 components of silica powder, 1-2.6 components of light magnesium oxide, 0.2-0.4 component of toner, 10-20 components of dimethyl carbonate, a certain amount of initiator and 8-18 components of diphenylmethane diisocyanate, and the preparation method specifically comprises the following steps:
firstly, heating the interior of equipment to 50-70 ℃, then adding 2000 molecular weight polyether polyol, 400 molecular weight polyether polyol, a plasticizer and long-chain paraffin into the equipment, and opening the equipment for stirring;
secondly, stirring to a certain degree in the first step, adding a certain amount of initiator, adding 400-mesh talcum powder, silicon micropowder, toner and light magnesium oxide on the basis of the first step, stirring and heating to more than 100 ℃;
thirdly, vacuumizing the interior of the equipment to vacuum, wherein the pressure of the vacuum in the equipment is-0.08 kPa;
and fourthly, stopping heating the interior of the equipment, reducing the temperature in the equipment to 80-90 ℃, adding diphenylmethane diisocyanate, and carrying out heat preservation reaction for 2-3 hours to obtain the material.
The invention also comprises equipment for a preparation method of the solvent-free modified TPU plastic track material, which comprises a stirring bin 1, wherein the top of the stirring bin 1 is provided with a driving motor 4, the output end of the driving motor 4 is provided with a bottom plate 5, the outer side of the bottom plate 5 is provided with three groups of first gears 6, one side of the three groups of first gears 6, which is far away from the bottom plate 5, is provided with an Contraband-shaped plate 15, the outer side of the Contraband-shaped plate 15 is sleeved with a stirring blade 12, one side of the Contraband-shaped plate 15, which is far away from the first gear 6, is provided with a connecting shaft 16, one side of the connecting shaft 16, which is far away from the bottom plate 5, is provided with a second gear 7, the top of the inner side of the stirring bin 1 is provided with an annular rack 8, the top of the outer side of the stirring blade 12 is provided with a third gear 9, the bottoms of the three groups of stirring blades 12 are provided with material promoting assemblies 3, the two sides of the stirring bin 1 are provided with material weighing assemblies 2, the bottom of the inner side of the stirring bin 1 is provided with a heating plate 10, the bottom of the stirring bin 1 is provided with a discharge hole 11, the middle positions of the two sides of the stirring bin 1 are provided with supporting rods 14, and the outer sides of the supporting rods 14 are provided with a plurality of groups of balancing weights 13.
As a preferable aspect of the present embodiment: title material subassembly 2 is including adding feed bin 201, spout 202, spacing slide bar 203, place pole 204, movable plate 205, connect rope 206, inlet pipe 207, roof 208, pulley 209, it is located one side of stirring storehouse 1 to add feed bin 201, the bottom of adding feed bin 201 inboard is provided with spout 202, the inside slip of spout 202 is provided with roof 208, the both sides at roof 208 top are provided with connects rope 206, the both sides at adding feed bin 201 top and the top of both sides all are provided with pulley 209, it establishes in the two sets of pulley 209 outsides to connect rope 206 cover, the other end of two sets of connection ropes 206 is provided with movable plate 205, one side at movable plate 205 top is provided with places pole 204, it is provided with inlet pipe 207 to add one side that feed bin 201 is close to stirring storehouse 1, the both ends of adding feed bin 201 bottom are provided with spacing slide bar 203 and can weigh to reinforced.
As a preferable aspect of the present embodiment: the material promoting component 3 comprises a connecting plate 301, a clamping groove 302, a scraping plate 303, clamping rods 304, a mounting plate 305, an expansion rod 306, a piston 307 and a sleeve 308, wherein the connecting plate 301 is located at the bottom of the stirring blade 12, the sleeve 308 is arranged at the bottom of the connecting plate 301, the clamping grooves 302 are arranged on two sides inside the sleeve 308, the expansion rod 306 is sleeved inside the sleeve 308, the mounting plate 305 is arranged on two sides of the expansion rod 306, the scraping plate 303 is arranged on one side of the bottom of the mounting plate 305, the piston 307 is arranged at the bottom of the expansion rod 306, two groups of clamping rods 304 are arranged inside the expansion rod 306 in a sliding mode, springs 310 are arranged on one sides, close to each other, of the two groups of clamping rods 304, limiting sleeves 309 are sleeved outside the two groups of clamping rods, and falling of materials is promoted.
As a preferable aspect of the present embodiment: one side of the clamping rod 304, which is far away from the spring 310, is provided with a groove, and the limiting sleeve 309 is located inside the groove to prevent the limiting sleeve 309 from falling off.
As a preferable embodiment of the present embodiment: a through groove is formed in the middle of one side of the movable plate 205, and the through grooves are matched with the supporting rods 14, so that the supporting rods 14 can pass through the through grooves conveniently.
As a preferable embodiment of the present embodiment: contraband limiting baffle rings are arranged on both sides of the outer side of the shaping plate 15, and the stirring blades 12 are positioned between the two groups of baffle rings to prevent the deflection of the stirring blades 12.
As a preferable aspect of the present embodiment: the first gear 6 and the third gear 9 are at ninety degrees therebetween, and the first gear 6 and the third gear 9 mesh with each other such that the third gear 9 rotates.
As a preferable embodiment of the present embodiment: the stirring blade 12 comprises a stirring rod and a sleeve block, and the stirring rod and the sleeve block are connected through a bearing, so that the stirring blade 12 is more uniform.
As a preferable embodiment of the present embodiment: the placing rod 204 and the supporting rod 14 are located at the same horizontal position, the placing rod 204 is matched with the balancing weight 13, and the balancing weight 13 is convenient to move to the outer side of the placing rod 204.
Example 1, as shown in fig. 5 to 6, simultaneously during discharging, before discharging, two sets of clamping rods 304 approach each other, a sleeve 308 slides up and down outside a telescopic rod 306, when a discharge port 11 needs to be opened, at this time, a limiting sleeve 309 outside the clamping rod 304 is taken down from above, under the elastic force of a spring 310, the two sets of clamping rods 304 move away from each other, so that the clamping rods 304 contact the inner wall of the sleeve 308, the sleeve 308 continues moving up and down, when the sleeve 308 drives the clamping grooves 302 to move to the clamping rods 304, the clamping rods 304 are sprung into the clamping grooves 302, so that the clamping rods 304 are clamped with the clamping grooves 302, so that the telescopic rod 306 is connected with the sleeve 308, and thus the telescopic rod 306 and the sleeve 308 move up and down to drive a piston 307 to move up and down to push the material to be moved out in an accelerated manner, and meanwhile, a plurality of sets of scrapers 303 scrape the inside of the stirring bin 1 to push the material to approach the discharge port 11 to accelerate the speed of discharging, preventing the adhesion of the materials.
The working principle is as follows: firstly, when adding materials into the interior of the stirring bin 1, sliding the balancing weight 13 from the outer side of the supporting rod 14 to the interior of the placing rod 204 according to the required mass, so that the movable plate 205 has gravity, pulling the top plate 208 upwards to the topmost part through the two groups of connecting ropes 206, then pouring the raw materials into the interior of the stirring bin 201, slowly pouring the raw materials, stopping continuously adding the materials when the raw materials slowly fall, sliding the top plate 208 to the feeding pipe 207, allowing all the materials to enter the interior of the stirring bin 1 through the feeding pipe 207 under the action of the inclined edge of the top plate 208, repeating the steps in sequence, adjusting the appropriate mass, and pouring different materials into the interior of the stirring bin 201;
then the driving motor 4 drives the bottom plate 5 to rotate, the bottom plate 5 simultaneously drives Contraband type plates 15 and a second gear 7 to revolve, the second gear 7 and the annular rack 8 are mutually meshed, so that the second gear 7 rotates to drive Contraband type plates 15 to rotate, Contraband type plates 15 drive the stirring blades 12 to move one above the other, meanwhile, the stirring blades 12 drive a third gear 9 to move on the outer side of the first gear 6, so that the third gear 9 rotates, and the third gear 9 drives the stirring blades 12 to rotate, so that the stirring blades 12 not only revolve and rotate simultaneously, but also rotate simultaneously under the rotation of the bottom plate 5, so that the stirring efficiency is improved;
simultaneously when the ejection of compact, two sets of kellies 304 are close to each other before the ejection of compact, sleeve pipe 308 slides in the outside of telescopic link 306, when needing to open discharge gate 11, take off the stop collar 309 in the kellies 304 outside this moment, under the elasticity of spring 310, keep away from each other, make kellies 304 and the contact of the inner wall of sleeve pipe 308, drive draw-in groove 302 and remove to kellies 304 department when sleeve pipe 308, make kellies 304 and draw-in groove 302 block, make telescopic link 306 and sleeve pipe 308 be connected, drive piston 307 is one on the other, promote shifting out of material when downwards, simultaneously multiunit scraper blade 303 strikes off the inside of promotion material to discharge gate 11 department and is close to the speed of accelerating the ejection of compact to stirring storehouse 1.
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The preparation method of the solvent-free modified TPU plastic track material is characterized by comprising the following steps: 24-34 components of 2000 molecular weight polyether polyol, 10-16 components of 400 molecular weight polyether polyol, 6-12 components of plasticizer, 14-20 components of long chain paraffin, 60-90 components of 400 mesh talcum powder, 6-16 components of silica powder, 1-2.6 components of light magnesium oxide, 0.2-0.4 component of toner, 10-20 components of dimethyl carbonate, a certain amount of initiator and 8-18 components of diphenylmethane diisocyanate, and the preparation method specifically comprises the following steps:
firstly, heating the interior of equipment to 50-70 ℃, then adding 2000 molecular weight polyether polyol, 400 molecular weight polyether polyol, a plasticizer and long-chain paraffin into the equipment, and opening the equipment for stirring;
secondly, stirring to a certain degree in the first step, adding a certain amount of initiator, adding 400-mesh talcum powder, silicon micropowder, toner and light magnesium oxide on the basis of the first step, stirring and heating to more than 100 ℃;
thirdly, vacuumizing the interior of the equipment to vacuum, wherein the pressure of the vacuum in the equipment is-0.08 kPa;
and fourthly, stopping heating the interior of the equipment, reducing the temperature in the equipment to 80-90 ℃, adding diphenylmethane diisocyanate, and carrying out heat preservation reaction for 2-3 hours to obtain the material.
2. The apparatus for preparing the solvent-free modified TPU plastic track material of claim 1, comprising a stirring bin (1), characterized in that: the stirring device is characterized in that a driving motor (4) is arranged at the top of the stirring bin (1), a bottom plate (5) is arranged at the output end of the driving motor (4), three groups of first gears (6) are arranged on the outer side of the bottom plate (5), Contraband type plates (15) are arranged on one sides, far away from the bottom plate (5), of the first gears (6), stirring blades (12) are sleeved on the outer side of the Contraband type plates (15), a connecting shaft (16) is arranged on one side, far away from the first gears (6), of the Contraband type plates (15), a second gear (7) is arranged on one side, far away from the bottom plate (5), of the connecting shaft (16), an annular rack (8) is arranged at the top of the inner side of the stirring bin (1), a third gear (9) is arranged at the top of the outer side of the stirring blades (12), material promoting assemblies (3) are arranged at the bottoms of the stirring blades (12), material weighing assemblies (2) are arranged on two sides of the stirring bin (1), the bottom of stirring storehouse (1) inboard is provided with hot plate (10), the bottom in stirring storehouse (1) is provided with discharge gate (11), the intermediate position department of stirring storehouse (1) both sides is provided with bracing piece (14), the outside of bracing piece (14) is provided with multiunit balancing weight (13).
3. The apparatus for preparing the solvent-free modified TPU plastic track material of claim 1, wherein: the material weighing component (2) comprises a feeding bin (201), a sliding groove (202), a limiting sliding rod (203), a placing rod (204), a movable plate (205), a connecting rope (206), a feeding pipe (207), a top plate (208) and pulleys (209), wherein the feeding bin (201) is positioned on one side of the stirring bin (1), the sliding groove (202) is arranged at the bottom of the inner side of the feeding bin (201), the top plate (208) is arranged in the sliding groove (202), the connecting rope (206) is arranged on the two sides of the top plate (208), the pulleys (209) are arranged on the two sides of the top of the feeding bin (201) and on the tops of the two sides, the connecting rope (206) is sleeved outside the two groups of pulleys (209), the movable plate (205) is arranged at the other end of the two groups of the connecting rope (206), the placing rod (204) is arranged on one side of the top of the movable plate (205), the feeding bin (201) is provided with the feeding pipe (207) on the side close to the stirring bin (1), and two ends of the bottom of the feeding bin (201) are provided with limiting sliding rods (203).
4. The apparatus for preparing the solvent-free modified TPU plastic track material of claim 2, wherein: the material promoting component (3) comprises a connecting plate (301), a clamping groove (302), a scraping plate (303), a clamping rod (304), a mounting plate (305), a telescopic rod (306), a piston (307) and a sleeve (308), the connecting plate (301) is positioned at the bottom of the stirring blade (12), the bottom of the connecting plate (301) is provided with a sleeve (308), clamping grooves (302) are arranged on two sides of the interior of the sleeve (308), an expansion rod (306) is sleeved in the sleeve (308), mounting plates (305) are arranged on two sides of the telescopic rod (306), a scraper (303) is arranged on one side of the bottom of the mounting plates (305), the bottom of telescopic link (306) is provided with piston (307), the inside slip of telescopic link (306) is provided with two sets of kelly (304), and is two sets of one side that kelly (304) are close to each other is provided with spring (310), and is two sets of kelly (304) outside cover is equipped with stop collar (309).
5. The apparatus for preparing the solvent-free modified TPU plastic track material of claim 2, wherein: a groove is formed in one side, away from the spring (310), of the clamping rod (304), and the limiting sleeve (309) is located inside the groove.
6. The apparatus for preparing the solvent-free modified TPU plastic track material of claim 3, wherein: a through groove is formed in the middle of one side of the movable plate (205), and the through groove supporting rods (14) are matched with each other.
7. The apparatus for preparing the solvent-free modified TPU plastic track material of claim 2, wherein: the two sides of the outer side of the Contraband shaping plate (15) are provided with limiting baffle rings, and the stirring blade (12) is positioned between the two groups of baffle rings.
8. The apparatus for preparing the solvent-free modified TPU plastic track material of claim 2, wherein: the first gear (6) and the third gear (9) are ninety degrees, and the first gear (6) and the third gear (9) are meshed with each other.
9. The apparatus for preparing the solvent-free modified TPU plastic track material of claim 2, wherein: the stirring blade (12) comprises a stirring rod and a sleeve block, and the stirring rod is connected with the sleeve block through a bearing.
10. The apparatus for preparing the solvent-free modified TPU plastic track material of claim 3, wherein: the placing rod (204) and the supporting rod (14) are located at the same horizontal position, and the placing rod (204) is matched with the balancing weight (13).
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| CN114591621B (en) | 2023-11-14 |
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