CN116692753A - Synthetic process of polyurethane resin - Google Patents
Synthetic process of polyurethane resin Download PDFInfo
- Publication number
- CN116692753A CN116692753A CN202310696841.XA CN202310696841A CN116692753A CN 116692753 A CN116692753 A CN 116692753A CN 202310696841 A CN202310696841 A CN 202310696841A CN 116692753 A CN116692753 A CN 116692753A
- Authority
- CN
- China
- Prior art keywords
- barrel
- filling
- polyurethane resin
- plate
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920005749 polyurethane resin Polymers 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000011049 filling Methods 0.000 claims abstract description 123
- 239000000126 substance Substances 0.000 claims abstract description 89
- 238000003756 stirring Methods 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 150000002009 diols Chemical class 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 7
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims abstract description 4
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 claims abstract description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims abstract description 4
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 229920001610 polycaprolactone Polymers 0.000 claims abstract description 4
- 239000004632 polycaprolactone Substances 0.000 claims abstract description 4
- 229920000909 polytetrahydrofuran Polymers 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 49
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000002194 synthesizing effect Effects 0.000 claims 9
- 230000007306 turnover Effects 0.000 claims 3
- 238000010030 laminating Methods 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 description 7
- 229920002635 polyurethane Polymers 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C7/00—Concurrent cleaning, filling, and closing of bottles; Processes or devices for at least two of these operations
- B67C7/0006—Conveying; Synchronising
- B67C7/0026—Conveying; Synchronising the containers travelling along a linear path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G59/00—De-stacking of articles
- B65G59/06—De-stacking from the bottom of the stack
- B65G59/067—De-stacking from the bottom of the stack articles being separated substantially perpendicularly to the axis of the stack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B3/00—Closing bottles, jars or similar containers by applying caps
- B67B3/20—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps
- B67B3/204—Linear-type capping machines
- B67B3/2046—Linear-type capping machines using friction means for screwing the caps, e.g. belts or wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B3/00—Closing bottles, jars or similar containers by applying caps
- B67B3/20—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps
- B67B3/2066—Details of capping heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/30—Filling of barrels or casks
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/348—Hydroxycarboxylic acids
-
- 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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- 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
-
- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6625—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/34
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C7/00—Concurrent cleaning, filling, and closing of bottles; Processes or devices for at least two of these operations
- B67C7/0006—Conveying; Synchronising
- B67C2007/006—Devices particularly adapted for container filling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C7/00—Concurrent cleaning, filling, and closing of bottles; Processes or devices for at least two of these operations
- B67C7/0006—Conveying; Synchronising
- B67C2007/0066—Devices particularly adapted for container closing
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
Abstract
The invention discloses a synthesis process of polyurethane resin, which comprises the following steps: (1) Adding polycaprolactone diol, polytetrahydrofuran diol, dimethylolpropionic acid and 1, 4-butanediol into a reaction kettle, and dehydrating at 120 ℃ for 0.5h under the protection of nitrogen; (2) adding N-methyl pyrrolidone, and cooling to 70 ℃; (3) Adding isophorone diisocyanate and 4,4' -dicyclohexylmethane diisocyanate under stirring; heating to 800 ℃ and stirring for reaction to reduce the-NCO content to 2.5%; (4) Cooling to 60 ℃, adding triethylamine, continuously stirring for 15min, reinforcing stirring, adding 400 ℃ water into a reaction kettle, stirring for 5min, adding ethylenediamine, stirring for 20min with strong force, and stirring for 2h with slow speed to obtain polyurethane resin liquid; (5) And (5) finishing the filling of the chemical barrel of the polyurethane resin liquid by using filling equipment.
Description
Technical Field
The invention belongs to the technical field of polyurethane synthesis, and particularly relates to a synthesis process of polyurethane resin.
Background
Polyurethane (PU), which is a high molecular compound, is known as polyurethane.
At present, chinese patent with publication number of CN110183611 and publication date of 2019, 8 and 30 discloses a preparation method of aqueous polyurethane self-extinction resin, which comprises the following operation steps: adding polymer polyol, a hydrophilic chain extender and isocyanate into a reaction vessel, mixing, heating to 60-90 ℃, preserving heat for 1-3 hours, cooling to 50-70 ℃, adding micromolecular polyol, reacting for 1-4 hours, adding a neutralizing agent, and neutralizing to obtain a prepolymer; adding deionized water into the prepolymer under the ice water bath condition to disperse the prepolymer, adding small molecular polyamine, and reacting to obtain aqueous polyurethane self-extinction emulsion; adding a rheological auxiliary agent, a wetting agent, a defoaming agent and a leveling agent into the aqueous polyurethane self-extinction emulsion according to any feeding sequence, and stirring for 10-120min at the rotating speed of 100-1000rpm to obtain the aqueous polyurethane self-extinction resin.
After the polyurethane resin is obtained, the filling equipment is required to be used for filling, the chemical barrel is placed below the filling equipment, the filling equipment can be used for filling the polyurethane resin into the chemical barrel, an operator is required to cover the barrel cover on the barrel opening of the chemical barrel manually after filling is finished, the barrel cover is required to be rotated to enable the barrel cover to be screwed on the barrel opening of the chemical barrel, and the whole process is very time-consuming and labor-consuming; meanwhile, the manual screwing of the cover by an operator is easy to make mistakes, such as incomplete screwing, and the long-time and repeated screwing operation of the cover can also lead to fatigue of the hands of the operator.
Disclosure of Invention
The invention aims to provide a synthesis process of polyurethane resin, which is beneficial to conveniently and efficiently completing the filling and capping operation of the polyurethane resin.
The technical aim of the invention is realized by the following technical scheme: the synthesis process of the polyurethane resin is characterized by comprising the following steps of:
(1) Adding polycaprolactone diol, polytetrahydrofuran diol, dimethylolpropionic acid and 1, 4-butanediol into a reaction kettle, and dehydrating at 120 ℃ for 0.5h under the protection of nitrogen;
(2) Adding N-methyl pyrrolidone, and cooling to 70 ℃;
(3) Adding isophorone diisocyanate and 4,4' -dicyclohexylmethane diisocyanate under stirring; heating to 800 ℃ and stirring for reaction to reduce the-NCO content to 2.5%;
(4) Cooling to 60 ℃, adding triethylamine, continuously stirring for 15min, reinforcing stirring, adding 400 ℃ water into a reaction kettle, stirring for 5min, adding ethylenediamine, stirring for 20min with strong force, and stirring for 2h with slow speed to obtain polyurethane resin liquid;
(5) Filling the chemical barrel of polyurethane resin liquid by filling equipment;
the filling equipment comprises a storage tank for storing polyurethane resin, a conveying pipe connected with the storage tank, a conveying pump arranged on the conveying pipe, an electromagnetic valve arranged on the conveying pipe, a roller conveyor for conveying chemical barrels back and forth, a first base arranged on one side of the roller conveyor, a lifting cylinder arranged on the upper side of the first base, a connecting seat arranged at the upper end of the lifting cylinder, a filling pipe arranged on the connecting seat and extending along the vertical downward direction, and a filling hose with one end connected with the filling pipe and the other end connected with the conveying pipe; the drum conveyor is characterized in that a second base is further arranged on one side of the drum conveyor, a transmission assembly for transmitting the barrel covers of a plurality of chemical barrels is arranged on the second base, the transmission assembly comprises a transmission frame arranged at the upper end of the second base and in an inverted U shape on the horizontal plane, transmission rollers arranged at two ends of the transmission frame, a transmission belt arranged between the two transmission rollers, a driving motor arranged at the end of the transmission frame and connected with the transmission rollers, a strip shaft arranged at the upper side of the transmission belt and parallel to the extension direction of the transmission belt, a limiting channel arranged at the lower side of the strip shaft and used for allowing the barrel covers to enter, a first connecting arm arranged at one side of the strip shaft and connected with the transmission frame, a first baffle arranged at one end of the transmission frame and used for blocking the barrel covers moving out of the limiting channel, and a pushing assembly arranged on the transmission frame and used for pushing the barrel covers abutting against the first baffle to the positions of the chemical barrels, and the distance between the first baffle and the end of the strip shaft is equal to the outer diameter of the section of the barrel covers.
According to the technical scheme, the prepared polyurethane resin is stored in the storage tank, when the chemical barrel is required to be filled in the chemical barrel, the chemical barrel is placed on the roller conveyor, the chemical barrel can be conveyed to the lower part of the filling pipe by the roller conveyor, then the connecting seat and the filling pipe are driven to move downwards by the lifting cylinder on the first base, the lower end of the filling pipe enters the barrel opening of the chemical barrel, and the polyurethane resin can be filled in the chemical barrel after the electromagnetic valve is opened and the conveying pump is started;
after filling, the electromagnetic valve and the delivery pump are closed, and then the lifting cylinder drives the filling pipe to move upwards, so that the filling pipe is separated from the bung hole of the chemical barrel, wherein a plurality of bungs in the limiting channel are conveyed towards one side of the first baffle plate by using the conveying belt, the first bung moved out of the limiting channel can be abutted against the first baffle plate, and then the bung is pushed to the bung hole of the chemical barrel by using the pushing assembly, so that the bung hole of the chemical barrel and the bung can be quickly abutted;
meanwhile, after one barrel cover on the conveying belt is pushed away, the next barrel cover can be abutted against the first baffle again under the conveying action of the conveying belt; after the butt joint of the barrel covers of the chemical barrels is finished, the barrel conveyor reversely moves the filled chemical barrels out, then the empty chemical barrels to be filled can be continuously placed on the barrel conveyor, so that the filling operation of a plurality of chemical barrels is realized, and finally the filling and sealing operation of polyurethane resin can be conveniently finished.
The invention is further provided with: the two sides of the roller conveyor are respectively provided with a first limiting plate which is used for being attached to the outer wall of the chemical barrel, the first limiting plates are provided with a second connecting arm which is connected with the roller conveyor, one end of the roller conveyor, which is close to the first base, is provided with a second limiting plate which is abutted against the outer wall of the chemical barrel and enables the opening of the chemical barrel to be aligned with the filling pipe.
By adopting the technical scheme, when the chemical barrel is transmitted on the roller conveyor, the moving direction of the chemical barrel is limited by the first limiting plate; and simultaneously, the filling position of the chemical barrel is positioned by utilizing the second limiting plate, so that the opening of the chemical barrel is accurately aligned with the filling pipe.
The invention is further provided with: the feeding pipe communicated with the limiting channel is arranged at one end of the strip shaft, far away from the first baffle, and extends along the vertical upward direction and is used for accommodating a plurality of barrel covers in a superposed manner.
Through adopting above-mentioned technical scheme, accomodate a plurality of bungs coincide in the inlet pipe, under bung gravity effect, the bung of inlet pipe lower extreme can be transmitted by the conveyer belt, so realize the transmission of a plurality of bungs on the conveyer belt.
The invention is further provided with: the pushing assembly comprises a connecting plate, a blanking port, a second baffle, a push plate, guide rods, a fixed plate, a guide sleeve, a reset spring, a linkage piece and a sealing cover, wherein the connecting plate is arranged on the first baffle, the upper surface of the connecting plate is flush with the upper surface of the conveying belt, the blanking port is formed in the connecting plate, the barrel port of the chemical barrel is sleeved with the barrel cover after the barrel cover falls down, the second baffle is arranged on one side of the connecting plate away from the conveying belt and is used for blocking the barrel cover, the push plate is arranged between the first baffle and the strip shaft and is used for abutting against the barrel cover, the guide rods are arranged at two ends of the push plate, the fixed plate is arranged on the first baffle, the guide sleeve is arranged on the fixed plate and is used for allowing the guide rods to pass through, the fixed disc is arranged on the guide rods away from one end of the push plate, the reset spring is sleeved on the guide rods, one end of the guide rods is connected with the guide sleeve, and the other end of the reset spring is connected with the fixed disc, and the linkage piece is arranged between the first baffle and the filling pipe and is used for driving the push plate to move towards one side of the blanking port, and one side of the sealing cover is arranged on one side of the push plate.
By adopting the technical scheme, the linkage piece is utilized to drive the push plate to move towards one side of the blanking port when the filling pipe moves upwards, the push plate can push the barrel cover to move towards the blanking port, and meanwhile, the sealing cover plate seals the end part of the strip shaft, and the barrel cover sealing cover plate can temporarily seal the barrel cover in the limiting channel; the reset spring can be compressed by the guide rod after the push plate moves, so that the reset spring is elastically deformed; and after the barrel cover successfully falls into the blanking port, the barrel cover can fall down to be in butt joint with the barrel port of the chemical barrel, and then under the action of the elastic restoring force of the restoring spring, the push plate can be driven to move towards one side far away from the blanking port, so that the next barrel cover in the limiting channel can be conveniently moved out and then is continuously abutted against the first baffle.
The invention is further provided with: the linkage piece comprises an inverted L-shaped turning arm, a guide plate, a first connecting rod, a second connecting rod, a first connecting rod and a second connecting rod, wherein the turning arm is connected to the first baffle plate in a turning angle through rotation, the guide plate is arranged on the upper side of the push plate and is used for enabling the lower end of the turning arm to abut against the lower end of the turning arm, the first connecting rod is arranged at the upper end of the filling pipe, one end of the first connecting rod is hinged to the end portion of the first connecting rod, and the other end of the second connecting rod is hinged to the upper end of the turning arm.
Through adopting above-mentioned technical scheme, when the filling tube vertically upwards moves under the drive of lift cylinder, the filling tube can utilize first connecting rod and second connecting rod to drive the turning arm and realize the upset, and the lower extreme of turning arm can promote the deflector this moment to drive the push pedal through the deflector and move towards being close to blanking mouth one side, return spring is compressed simultaneously; when the pipe pile is required to be carried out for the next time and the filling pipe vertically moves downwards under the drive of the lifting cylinder, under the action of the elastic restoring force of the restoring spring and the action of the downward movement of the first connecting rod and the second connecting rod, the push plate is driven to move towards one side far away from the blanking port, and then the next barrel cover in the limiting channel is conveniently moved out and then is continuously abutted against the first baffle.
The invention is further provided with: the lower extreme rotation of upset arm is connected with the gyro wheel of contradicting on the deflector.
Through adopting above-mentioned technical scheme, the upset arm utilizes the gyro wheel can take place rolling friction between can and the deflector, because rolling friction compares in sliding friction, frictional force is littleer, can be favorable to the more smooth promotion deflector of upset arm to remove finally.
The invention is further provided with: the automatic filling machine is characterized in that a tightening assembly for tightening the barrel cover is further arranged between the filling pipe and the first baffle, and the tightening assembly comprises a pressing ring, a pipe sleeve and a driving piece, wherein the pressing ring is rotationally connected to the lower end of the filling pipe and used for propping against the barrel cover, the pipe sleeve is arranged on the pressing ring in an upper side and sleeved on the filling pipe, the driving piece is arranged on the first baffle and used for driving the pipe sleeve to rotate when the filling pipe moves downwards.
Through adopting above-mentioned technical scheme, when the bung from the blanking mouth whereabouts and accomplish the butt joint with the bung hole of chemical industry bucket, drive the filling tube again through the lift cylinder and move down for the clamping ring of filling tube lower extreme supports tightly on the bung of chemical industry bucket bung hole, then utilizes the driving piece to drive the pipe box again and rotates, and the pipe box can drive the clamping ring and rotate, and the clamping ring can drive the bung and rotate this moment; the clamping ring rotates and the lifting cylinder drives the clamping ring to move downwards, at this time, the tightening operation of the barrel cover on the barrel opening of the chemical barrel can be completed, the manual tightening operation of an operator is not needed, the tightening position of the barrel cover on the barrel opening of the chemical barrel can be determined according to the height of the lifting cylinder, the condition that the barrel cover is not fully tightened is avoided, and finally the filling and sealing operation of polyurethane resin can be completed conveniently and efficiently.
The invention is further provided with: the driving piece comprises a servo motor arranged on the upper side of the first baffle, an external tooth column rotationally connected to the first baffle and the end part of which is connected with an output shaft of the servo motor, and a driven gear arranged on the peripheral side of the upper end of the pipe sleeve and meshed with the external tooth column, wherein the external tooth column extends along the vertical direction.
Through adopting above-mentioned technical scheme, utilize servo motor can drive the external tooth post and rotate, the external tooth post can drive the pipe box through driven gear and rotate, wherein because external tooth post extends along vertical direction, so driven gear also can move down along external tooth post when moving down along with the pipe box, can guarantee finally that the pipe box keeps the meshing state of driven gear and external tooth post at the in-process of moving down.
The invention is further provided with: the annular groove is formed in the inner wall of the periphery of the compression ring, and the positioning ring embedded in the annular groove is arranged on the outer wall of the periphery of the lower end of the filling pipe.
Through adopting above-mentioned technical scheme, the clamping ring utilizes the holding ring embedding of annular confession filling tube to realize that the clamping ring circumference rotates to be connected and axial fixed connection is at the filling tube lower extreme.
The invention is further provided with: the periphery of the lower surface of the compression ring is provided with a plurality of rubber pads which are used for propping against the upper surface of the barrel cover.
Through adopting above-mentioned technical scheme, the clamping ring utilizes the rubber pad to support tightly at the bung upper surface to increase the frictional force with the bung between, be favorable to the stable drive bung rotation of clamping ring.
In summary, the invention has the following beneficial effects: the prepared polyurethane resin is stored in a storage tank, when the chemical barrel needs to be filled in, the chemical barrel is placed on a roller conveyor, the chemical barrel can be conveyed to the lower part of a filling pipe by the roller conveyor, wherein the moving direction of the chemical barrel is limited by a first limiting plate, and the filling position of the chemical barrel is positioned by a second limiting plate, so that the barrel opening of the chemical barrel is accurately aligned with the filling pipe;
then the connecting seat and the filling pipe are driven to move downwards through the lifting cylinder on the first base, so that the lower end of the filling pipe and the compression ring enter the barrel opening of the chemical barrel together, and after the electromagnetic valve is opened and the conveying pump is started, the polyurethane resin in the chemical barrel can be filled;
after filling is completed, the electromagnetic valve and the delivery pump are closed, and then the lifting cylinder drives the filling pipe to move upwards, so that the filling pipe is separated from the barrel mouth of the chemical barrel, wherein a plurality of barrel covers in the limiting channel are conveyed towards one side of the first baffle plate by utilizing the conveying belt, and the first barrel cover moving out of the limiting channel can be abutted against the first baffle plate; at the moment, when the lifting cylinder drives the filling pipe to move upwards, the filling pipe can utilize the first connecting rod and the second connecting rod to drive the turning arm to realize turning, and at the moment, the lower end of the turning arm can push the guide plate through the roller, so that the push plate is driven to move towards one side close to the blanking port through the guide plate, and meanwhile, the reset spring is compressed;
when the barrel cover falls from the blanking port and is in butt joint with the barrel port of the chemical barrel, the lifting cylinder drives the filling pipe to move downwards again, so that the compression ring at the lower end of the filling pipe is abutted to the barrel cover of the barrel port of the chemical barrel through the rubber pad, then the servo motor is utilized to drive the external tooth column to rotate, the external tooth column can drive the pipe sleeve to rotate through the driven gear, the pipe sleeve can drive the compression ring to rotate, and at the moment, the compression ring can drive the barrel cover to rotate; the clamping ring rotates and the lifting cylinder drives the clamping ring to move downwards, so that the tightening operation of the barrel cover on the barrel opening of the chemical barrel can be completed, an operator does not need to manually tighten the barrel cover, the tightening position of the barrel cover on the barrel opening of the chemical barrel can be determined according to the height of the lifting cylinder, the condition that the barrel cover is not fully tightened is avoided, and finally the filling and sealing operation of polyurethane resin can be completed conveniently and efficiently;
then the filling pipe is driven by the lifting cylinder to vertically move upwards, so that the compression ring is separated from the barrel cover, and the filled chemical barrel is reversely moved out by the roller conveyor, so that the filling and capping operation of one chemical barrel can be completed; and then, the empty chemical barrels to be filled can be continuously placed on the roller conveyor, so that the filling operation of a plurality of chemical barrels is realized, and finally, the filling and sealing operation of polyurethane resin can be conveniently finished.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the connection between the drum conveyor, the chemical drum and the cup cover in the present invention;
FIG. 3 is a schematic view showing the connection relationship among the first base, the lifting cylinder, the filling pipe and the transmission assembly according to the present invention;
FIG. 4 is an enlarged view of a part of the connection between the lifting cylinder, the filling tube, the pushing assembly and the linkage element, wherein the filling tube is embedded into the bung hole of the chemical barrel after being moved downwards, and meanwhile, after the push plate and the cover plate are moved away from the limiting channel, one bung in the limiting channel is abutted against the first baffle after being transmitted;
FIG. 5 is a plan view showing the connection among the filling tube, the pushing assembly and the linkage member in the present invention, wherein the pushing plate pushes the lid into the blanking port after the filling tube is moved up;
FIG. 6 is a partial cross-sectional view of the connection between the filler pipe, pressure ring and sleeve of the present invention;
FIG. 7 is a plan view of the connection between the filler tube, the pushing assembly and the linkage in the present invention, wherein the pressure ring abuts against the lid after the filler tube is moved down, and the lid plate of the push plate still blocks the lid in the limiting channel.
In the figure, 1, filling equipment; 11. a storage tank; 12. a delivery tube; 13. a transfer pump; 14. an electromagnetic valve; 15. a roller conveyor; 151. a first limiting plate; 152. a second connecting arm; 153. a second limiting plate; 16. a first base; 17. a lifting cylinder; 18. a connecting seat; 19. filling tubes; 191. a positioning ring; 101. filling a hose; 2. a second base; 3. a transmission assembly; 31. a transmission rack; 32. a conveying roller; 33. a transmission belt; 34. a driving motor; 35. a strip shaft; 351. a feed pipe; 36. a limiting channel; 37. a first connecting arm; 38. a first baffle; 39. a pushing assembly; 391. a connecting plate; 392. a blanking port; 393. a second baffle; 394. a push plate; 3941. a cover plate; 395. a guide rod; 396. a fixing plate; 397. a guide sleeve; 398. a fixed plate; 399. a return spring; 301. a linkage member; 3011. a flip arm; 30111. a roller; 3012. a guide plate; 3013. a first link; 3014. a second link; 4. tightening the assembly; 41. a compression ring; 411. a ring groove; 412. a rubber pad; 42. a pipe sleeve; 43. a driving member; 431. a servo motor; 432. external tooth column; 433. a driven gear; 5. a chemical barrel; 6. a barrel cover.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
A synthesis process of polyurethane resin comprises the following steps:
(1) Adding polycaprolactone diol, polytetrahydrofuran diol, dimethylolpropionic acid and 1, 4-butanediol into a reaction kettle, and dehydrating at 120 ℃ for 0.5h under the protection of nitrogen;
(2) Adding N-methyl pyrrolidone, and cooling to 70 ℃;
(3) Adding isophorone diisocyanate and 4,4' -dicyclohexylmethane diisocyanate under stirring; heating to 800 ℃ and stirring for reaction to reduce the-NCO content to 2.5%;
(4) Cooling to 60 ℃, adding triethylamine, continuously stirring for 15min, reinforcing stirring, adding 400 ℃ water into a reaction kettle, stirring for 5min, adding ethylenediamine, stirring for 20min with strong force, and stirring for 2h with slow speed to obtain polyurethane resin liquid;
(5) Filling the chemical barrel 5 of polyurethane resin liquid is completed by using the filling equipment 1.
Referring to fig. 1 and 2, the filling apparatus 1 includes a storage tank 11, a delivery pipe 12, a delivery pump 13, a solenoid valve 14, a roller conveyor 15, a first base 16, a lifting cylinder 17, a connection base 18, a filling pipe 19, and a filling hose 101, wherein the storage tank 11 stores the polyurethane resin to be produced, the delivery pipe 12 is connected to the storage tank 11, and both the delivery pump 13 and the solenoid valve 14 are mounted on the delivery pipe 12; the roller conveyor 15 is located at one side of the storage tank 11, wherein the roller conveyor 15 is used for conveying the chemical barrel 5 back and forth, and the internal structure of the roller conveyor 15 is a prior art, which is not described herein again; simultaneously, both sides of the roller conveyor 15 are provided with first limiting plates 151 which are used for being attached to the outer wall of the chemical barrel 5, the first limiting plates 151 are provided with second connecting arms 152, one ends of the second connecting arms 152 are connected with the first limiting plates 151 through bolts, the other ends of the second connecting arms 152 are connected with the outer wall of the roller conveyor 15 through bolts, one ends of the roller conveyor 15 are connected with second limiting plates 153 through bolts, and the second limiting plates 153 are used for being abutted to the outer wall of the chemical barrel 5.
Referring to fig. 1, 2 and 3, the first base 16 is located at one end of the drum conveyor 15 near the second limiting plate 153, wherein the lifting cylinder 17 is fixed on the upper side of the first base 16 by bolts, the connecting seat 18 is fixed on the upper end of the lifting cylinder 17 by bolts, the filling tube 19 is mounted on the connecting seat 18 by bolts, and one end of the filling hose 101 is connected with one end of the conveying tube 12 far from the storage tank 11 and the other end is connected with the filling tube 19; wherein when the chemical bucket 5 is abutted against the second limiting plate 153, the mouth of the chemical bucket 5 is aligned with the filling tube 19 above.
Referring to fig. 1 and 3, a second base 2 is further disposed on one side of the drum conveyor 15 near the first base 16, and a transmission assembly 3 for transmitting the barrel covers 6 of the chemical barrels 5 is disposed on the second base 2, wherein the transmission assembly 3 comprises a transmission frame 31, a transmission roller 32, a transmission belt 33, a driving motor 34, a strip shaft 35, a limiting channel 36, a first connecting arm 37, a first baffle 38 and a pushing assembly 39, wherein the transmission frame 31 is fixed at the upper end of the second base 2 through bolts, the transmission frame 31 is in an inverted U shape on the horizontal plane, the transmission roller 32 is rotatably connected at two ends of the transmission frame 31 through bearing seats, the transmission belt 33 is disposed between the two transmission rollers 32, the driving motor 34 is fixed at the end of the transmission frame 31 through bolts, and the output shaft is connected with the transmission roller 32, the strip shaft 35 is disposed at the upper side of the transmission belt 33 and the extending direction is parallel to the transmission belt 33, the limiting channel 36 is opened at the lower side of the strip shaft 35 and is provided for the barrel covers 6 to enter, and one end of the first connecting arm 37 and the transmission frame 31 are fixed with the outer wall of the strip shaft 35 through bolts; one side of the first baffle 38 is fixed at one end of the transmission frame 31 through bolts, wherein the first baffle 38 can be used for blocking the barrel cover 6 moving out of the limiting channel 36, and the distance between the first baffle 38 and the end of the strip shaft 35 is equal to the outer diameter of the cross section of the barrel cover 6; meanwhile, a feeding pipe 351 communicated with the limiting channel 36 is integrally arranged at one end of the strip shaft 35 far away from the first baffle 38, and the feeding pipe 351 extends along the vertical upward direction and is used for accommodating a plurality of barrel covers 6 in a superposed manner.
Referring to fig. 3 and 4, the pushing assembly 39 is disposed on the conveying frame 31 and is used for pushing the bucket cover 6 abutting against the first baffle 38 to the opening of the chemical bucket 5, the pushing assembly 39 includes a connecting plate 391, a blanking opening 392, a second baffle 393, a push plate 394, a guide rod 395, a fixing plate 396, a guide sleeve 397, a fixing disc 398, a return spring 399 and a linkage 301, wherein the connecting plate 391 is welded on the first baffle 38 and is located on one side of the conveying belt 33 close to the roller conveyor 15, the upper surface of the connecting plate 391 is level with the upper surface of the conveying belt 33, the blanking opening 392 is formed on the connecting plate 391 and is used for allowing the bucket cover 6 to fall and sleeve the opening of the chemical bucket 5, and the second baffle 393 is integrally disposed on one side of the connecting plate 391 away from the conveying belt 33 and is used for blocking the bucket cover 6; wherein the push plate 394 is located between the first baffle 38 and the strip shaft 35, the push plate 394 is located above the conveying belt 33, the push plate 394 can be abutted against the barrel cover 6, and one side of the push plate 394 is integrally provided with a cover plate 3941 for covering the end part of the strip shaft 35; while the guide rods 395 are welded at both ends of the push plate 394 and the fixing plates 396 are welded on the first baffle 38, wherein the guide sleeves 397 are welded on the fixing plates 396 and are penetrated by the guide rods 395, and the fixing plates 398 are welded at one end of the guide rods 395 far from the push plate 394, while the return springs 399 are sleeved on the guide rods 395, and one end of the return springs 399 are welded with the guide sleeves 397 and the other end are welded with the fixing plates 398.
Referring to fig. 3 and 4, a linkage 301 is disposed between a first baffle 38 and a filling tube 19 and is used for driving a push plate 394 to move towards one side of a blanking opening 392, the linkage 301 includes a turning arm 3011, a guide plate 3012, a first link 3013 and a second link 3014, wherein the turning arm 3011 is in an inverted L shape, a corner of the turning arm 3011 is rotatably connected to the first baffle 38 through a shaft and a bearing, a roller 30111 is rotatably connected to a lower end of the turning arm 3011, the guide plate 3012 is integrally disposed on the upper side of the push plate 394, and the guide plate 3012 can be abutted by the roller 30111; wherein one end of the first link 3013 is welded to the upper end of the filling tube 19, while one end of the second link 3014 is hinged to the end of the first link 3013 remote from the filling tube 19 and the other end is hinged to the upper end of the flip arm 3011.
Referring to fig. 4, 5 and 6, a tightening assembly 4 for tightening the barrel cover 6 is further arranged between the filling tube 19 and the first baffle 38, the tightening assembly 4 comprises a pressing ring 41, a pipe sleeve 42 and a driving piece 43, wherein the pressing ring 41 is rotationally connected to the lower end of the filling tube 19 and is used for propping against the barrel cover 6, a ring groove 411 is formed in the inner peripheral wall of the pressing ring 41, a positioning ring 191 embedded in the ring groove 411 is integrally arranged on the outer peripheral wall of the lower end of the filling tube 19, at the moment, the pressing ring 41 can be circumferentially rotationally connected and axially fixedly connected to the lower end of the filling tube 19, and a plurality of rubber pads 412 used for propping against the upper surface of the barrel cover 6 are also bonded on the periphery of the lower surface of the pressing ring 41; wherein the lower end of the pipe sleeve 42 is welded on the upper side of the compression ring 41 and sleeved on the filling pipe 19, and a bearing is arranged between the pipe sleeve 42 and the filling pipe 19; meanwhile, the driving member 43 is disposed on the first baffle 38 and is used for driving the pipe sleeve 42 to rotate when the filling pipe 19 moves downwards, the driving member 43 comprises a servo motor 431, an external gear post 432 and a driven gear 433, wherein the servo motor 431 is fixed on the upper side of the first baffle 38 through bolts, the external gear post 432 is rotationally connected to the first baffle 38 through a shaft and a bearing seat, meanwhile, the end part of the external gear post 432 is connected with an output shaft of the servo motor 431, the external gear post 432 extends along the vertical direction, and the driven gear 433 is welded on the peripheral side of the upper end of the pipe sleeve 42 and is meshed with the external gear post 432.
Principle of: the prepared polyurethane resin is accommodated in a storage tank 11, when the chemical barrel 5 is required to be filled in, the chemical barrel 5 is placed on a roller conveyor 15, the chemical barrel 5 can be conveyed to the lower part of a filling pipe 19 by using the roller conveyor 15, wherein the moving direction of the chemical barrel 5 is limited by using a first limiting plate 151, and the filling position of the chemical barrel 5 is positioned by using a second limiting plate 153, so that the barrel opening of the chemical barrel 5 is accurately aligned with the filling pipe 19;
then the connecting seat 18 and the filling pipe 19 are driven to move downwards through the lifting cylinder 17 on the first base 16, so that the lower end of the filling pipe 19 enters the barrel opening of the chemical barrel 5 together with the compression ring 41, the electromagnetic valve 14 is opened, the polyurethane resin in the chemical barrel 5 can be filled after the conveying pump 13 is started, at the moment, after the push plate 394 and the cover plate 3941 are moved away from the limit channel 36, one barrel cover 6 in the limit channel 36 is transmitted and then is abutted against the first baffle 38;
after filling, the electromagnetic valve 14 and the delivery pump 13 are closed, and then the lifting cylinder 17 drives the filling pipe 19 to move upwards, so that the filling pipe 19 is separated from the mouth of the chemical barrel 5; at this time, when the lifting cylinder 17 drives the filling pipe 19 to move upwards, the filling pipe 19 can drive the overturning arm 3011 to overturn by using the first connecting rod 3013 and the second connecting rod 3014, and at this time, the lower end of the overturning arm 3011 can push the guide plate 3012 through the roller 30111, so that the push plate 394 is driven to move towards the side close to the blanking port 392 by the guide plate 3012, and meanwhile, the return spring 399 is compressed;
when the barrel cover 6 falls from the blanking port 392 and is in butt joint with the barrel opening of the chemical barrel 5, the lifting cylinder 17 drives the filling pipe 19 to move downwards again, so that the compression ring 41 at the lower end of the filling pipe 19 is abutted against the barrel cover 6 of the barrel opening of the chemical barrel 5 through the rubber pad 412, then the servo motor 431 is utilized to drive the external tooth post 432 to rotate, the external tooth post 432 can drive the pipe sleeve 42 to rotate through the driven gear 433, the pipe sleeve 42 can drive the compression ring 41 to rotate, and at the moment, the compression ring 41 can drive the barrel cover 6 to rotate; the compression ring 41 rotates and the lifting cylinder 17 drives the compression ring 41 to move downwards, so that the tightening operation of the barrel cover 6 on the barrel opening of the chemical barrel 5 can be completed, an operator does not need to manually tighten the barrel cover, the tightening position of the barrel cover 6 on the barrel opening of the chemical barrel 5 can be determined according to the height of the lifting cylinder 17, the condition that the barrel cover 6 is not fully tightened is avoided, and finally the filling and sealing operation of polyurethane resin can be conveniently and efficiently completed;
then the filling pipe 19 is driven by the lifting cylinder 17 to vertically move upwards, so that the compression ring 41 is separated from the barrel cover 6, and the filled chemical barrel 5 is reversely moved out by the roller conveyor 15, so that the filling and capping operation of the chemical barrel 5 can be completed; the cavitation working barrels 5 to be filled can be placed on the roller conveyor 15 continuously, so that the filling operation of a plurality of working barrels 5 is realized, and finally the filling and sealing operation of polyurethane resin can be finished conveniently and rapidly.
When the lifting cylinder 17 drives the filling pipe 19 to move downwards and the pressing ring 41 is used for screwing the barrel cover 6, the push plate 394 moves towards the side far away from the blanking port 392, but the distance of the downward movement of the filling pipe 19 is shorter because the filling pipe 19 is not embedded in the barrel port of the chemical barrel 5, and at this time, the cover plate 3941 on the push plate 394 can still keep blocking the barrel cover 6 in the limiting channel 36.
Claims (10)
1. The synthesis process of the polyurethane resin is characterized by comprising the following steps of:
(1) Adding polycaprolactone diol, polytetrahydrofuran diol, dimethylolpropionic acid and 1, 4-butanediol into a reaction kettle, and dehydrating at 120 ℃ for 0.5h under the protection of nitrogen;
(2) Adding N-methyl pyrrolidone, and cooling to 70 ℃;
(3) Adding isophorone diisocyanate and 4,4' -dicyclohexylmethane diisocyanate under stirring; heating to 800 ℃ and stirring for reaction to reduce the-NCO content to 2.5%;
(4) Cooling to 60 ℃, adding triethylamine, continuously stirring for 15min, reinforcing stirring, adding 400 ℃ water into a reaction kettle, stirring for 5min, adding ethylenediamine, stirring for 20min with strong force, and stirring for 2h with slow speed to obtain polyurethane resin liquid;
(5) Filling the chemical barrel (5) of polyurethane resin liquid by using filling equipment (1);
the filling equipment (1) comprises a storage tank (11) for storing polyurethane resin, a conveying pipe (12) connected with the storage tank (11), a conveying pump (13) arranged on the conveying pipe (12), an electromagnetic valve (14) arranged on the conveying pipe (12), a roller conveyor (15) for conveying chemical barrels (5) back and forth, a first base (16) arranged on one side of the roller conveyor (15), a lifting cylinder (17) arranged on the upper side of the first base (16), a connecting seat (18) arranged at the upper end of the lifting cylinder (17), a filling pipe (19) arranged on the connecting seat (18) and extending along the vertical downward direction, and a filling hose (101) with one end connected with the filling pipe (19) and the other end connected with the conveying pipe (12); the drum conveyor (15) is characterized in that a second base (2) is further arranged on one side of the drum conveyor (15), a transmission assembly (3) for transmitting a plurality of barrel covers (6) of chemical barrels (5) is arranged on the second base (2), the transmission assembly (3) comprises a transmission frame (31) which is arranged at the upper end of the second base (2) and is in an inverted U shape on the horizontal plane, transmission rollers (32) which are arranged at two ends of the transmission frame (31), a transmission belt (33) which is arranged between the two transmission rollers (32), a driving motor (34) which is arranged at the end part of the transmission frame (31) and is connected with the transmission rollers (32), a strip shaft (35) which is arranged at the upper side of the transmission belt (33) and is parallel to the extending direction of the transmission belt (33), a limit channel (36) which is arranged at the lower side of the strip shaft (35) and is used for allowing the barrel covers (6) to enter, a first connecting arm (37) which is arranged at one side of the strip shaft (35) and is connected with the transmission frame (31), a baffle plate (38) which is arranged at one end of the transmission frame (31) and is used for pushing the first barrel cover (6) which is pushed out of the limit channel (36) and is arranged at the first baffle plate (38) which is used for pushing the barrel covers (6) to move out of the chemical barrels (6) on the first baffle plate (38), the distance between the first baffle plate (38) and the end part of the strip shaft (35) is equal to the outer diameter of the cross section of the barrel cover (6).
2. The process for synthesizing a polyurethane resin according to claim 1, wherein: the utility model discloses a chemical industry barrel, including cylinder conveyer (15), barrel opening, filling tube (19) and sealing tube, both sides of cylinder conveyer (15) all are provided with first limiting plate (151) that are used for laminating on chemical industry barrel (5) outer wall, be provided with second linking arm (152) that are connected with cylinder conveyer (15) on first limiting plate (151), the one end that cylinder conveyer (15) is close to first base (16) is provided with and contradicts on chemical industry barrel (5) outer wall and makes the bung hole of chemical industry barrel (5) aim at second limiting plate (153) of filling tube (19).
3. The process for synthesizing a polyurethane resin according to claim 1, wherein: one end of the strip shaft (35) far away from the first baffle (38) is provided with a feeding pipe (351) communicated with the limiting channel (36), and the feeding pipe (351) extends along the vertical upward direction and is used for accommodating a plurality of barrel covers (6) in a superposed mode.
4. The process for synthesizing a polyurethane resin according to claim 1, wherein: the pushing assembly (39) comprises a connecting plate (391) arranged on the first baffle plate (38) and the upper surface of which is flush with the upper surface of the conveying belt (33), a blanking port (392) arranged on the connecting plate (391) and used for allowing the barrel cover (6) to fall and be sleeved on the barrel mouth of the chemical barrel (5), a second baffle plate (393) arranged on one side of the connecting plate (391) away from the conveying belt (35) and used for blocking the barrel cover (6), a push plate (394) arranged between the first baffle plate (38) and the strip shaft (35) and used for abutting on the barrel cover (6), guide rods (395) arranged on two ends of the push plate (394), a fixed plate (396) arranged on the first baffle plate (38), a guide sleeve (397) arranged on the fixed plate (396) and used for allowing the guide rods (395) to pass through, a fixed disc (398) arranged on one end of the guide rod (395) and a reset spring (399) sleeved on one end of the guide rod (395) and connected with the other end of the guide sleeve (397) and used for driving the blanking plate (399) to move towards the first baffle plate (301) and the one side of the filling pipe (394), one side of the push plate (394) is provided with a cover plate (3941) for covering the end part of the strip shaft (35).
5. The process for synthesizing a polyurethane resin according to claim 4, wherein: the linkage piece (301) comprises an inverted L-shaped turnover arm (3011) which is rotatably connected to the first baffle plate (38) at an angle, a guide plate (3012) which is arranged on the upper side of the push plate (394) and used for enabling the lower end of the turnover arm (3011) to abut against, a first connecting rod (3013) which is arranged at the upper end of the filling pipe (19), and a second connecting rod (3014) which is hinged to the end part of the first connecting rod (3013) and is hinged to the upper end of the turnover arm (3011) at the other end.
6. The process for synthesizing a polyurethane resin according to claim 5, wherein: the lower end of the overturning arm (3011) is rotatably connected with a roller (30111) which is abutted against the guide plate (3012).
7. The process for synthesizing a polyurethane resin according to claim 1, wherein: the automatic filling machine is characterized in that a tightening assembly (4) for tightening the barrel cover (6) is further arranged between the filling pipe (19) and the first baffle plate (38), and the tightening assembly (4) comprises a pressing ring (41) which is rotationally connected to the lower end of the filling pipe (19) and used for propping against the barrel cover (6), a pipe sleeve (42) which is arranged on the upper side of the pressing ring (41) and sleeved on the filling pipe (19), and a driving piece (43) which is arranged on the first baffle plate (38) and used for driving the pipe sleeve (42) to rotate when the filling pipe (19) moves downwards.
8. The process for synthesizing a polyurethane resin according to claim 7, wherein: the driving part (43) comprises a servo motor (431) arranged on the upper side of the first baffle plate (38), an external gear column (432) rotatably connected to the first baffle plate (38) and connected with an output shaft of the servo motor (431) at the end part, and a driven gear (433) arranged on the circumferential side of the upper end of the pipe sleeve (42) and meshed with the external gear column (432), wherein the external gear column (432) extends in the vertical direction.
9. The process for synthesizing a polyurethane resin according to claim 7, wherein: the annular groove (411) is formed in the inner wall of the periphery of the compression ring (41), and the positioning ring (191) embedded in the annular groove (411) is arranged on the outer wall of the periphery of the lower end of the filling pipe (19).
10. The process for synthesizing a polyurethane resin according to claim 7, wherein: the periphery of the lower surface of the compression ring (41) is provided with a plurality of rubber pads (412) which are used for propping against the upper surface of the barrel cover (6).
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| CN110003836A (en) * | 2018-01-04 | 2019-07-12 | 潘小聪 | A kind of environment-friendly type weaving glue and its synthetic method |
| CN110183611A (en) * | 2019-05-24 | 2019-08-30 | 广州慧谷化学有限公司 | A kind of aqueous polyurethane is from matting resin and preparation method thereof, printing mortar |
| CN113388087A (en) * | 2020-03-13 | 2021-09-14 | 上海蓝欧化工科技有限公司 | Waterborne polyurethane resin and preparation method thereof, and waterborne adhesive and application thereof |
| CN112125269A (en) * | 2020-10-08 | 2020-12-25 | 王乾 | Coating filling production line and working method thereof |
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| CN115010073A (en) * | 2022-05-18 | 2022-09-06 | 南京天力信科技实业有限公司 | Filling system and method for resin adhesive production |
| CN115417360A (en) * | 2022-09-26 | 2022-12-02 | 福建新德食品有限公司 | Edible oil filling production line |
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| CN116692753B (en) | 2023-12-26 |
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