CN115417366A - Polyurethane resin coating processing technology - Google Patents
Polyurethane resin coating processing technology Download PDFInfo
- Publication number
- CN115417366A CN115417366A CN202210981692.7A CN202210981692A CN115417366A CN 115417366 A CN115417366 A CN 115417366A CN 202210981692 A CN202210981692 A CN 202210981692A CN 115417366 A CN115417366 A CN 115417366A
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- coating
- paint
- filling
- polyurethane resin
- pipe
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- 238000000576 coating method Methods 0.000 title claims abstract description 98
- 239000011248 coating agent Substances 0.000 title claims abstract description 97
- 229920005749 polyurethane resin Polymers 0.000 title claims abstract description 20
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000011049 filling Methods 0.000 claims abstract description 89
- 239000003973 paint Substances 0.000 claims abstract description 83
- 238000003756 stirring Methods 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 5
- 238000006136 alcoholysis reaction Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 238000006068 polycondensation reaction Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 3
- 238000004040 coloring Methods 0.000 claims 2
- 239000000049 pigment Substances 0.000 abstract description 6
- 239000011527 polyurethane coating Substances 0.000 abstract 1
- 230000000670 limiting effect Effects 0.000 description 13
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000002028 premature Effects 0.000 description 3
- 239000011265 semifinished product Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- ULEBESPCVWBNIF-BYPYZUCNSA-N L-arginine amide Chemical compound NC(=O)[C@@H](N)CCCNC(N)=N ULEBESPCVWBNIF-BYPYZUCNSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002148 esters Chemical group 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
-
- 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
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/28—Flow-control devices, e.g. using valves
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Coating Apparatus (AREA)
Abstract
The invention belongs to the technical field of polyurethane coating processing, and particularly relates to a processing technology of a polyurethane resin coating; the color matching and filling steps in the process are carried out by a coating filling device, and the process comprises the following steps: the method comprises the following steps: preparing a semi-finished coating; step two: pumping the semi-finished paint into a filling stirring tank, adding a pigment and a drier, and fully mixing the pigment and the semi-finished paint to obtain a paint finished product; step three: filling; the structure of the coating filling device used in the polyurethane resin coating processing technology in the application comprises a seat, a coating bucket positioning frame and a stirring arm; the base is provided with a coating barrel positioning frame and a bracket, the bracket is provided with a filling stirring tank, the coating barrel positioning frame is used for supporting a coating subpackaging barrel, the lower end of the side part of the filling stirring tank is provided with a communicating pipe fitting, and the communicating pipe fitting can be inserted into the coating subpackaging barrel; the aim of preventing the coating from being dried prematurely is achieved by reducing the degree of contact of air with the coating.
Description
Technical Field
The invention belongs to the technical field of coating processing, and particularly relates to a processing technology of a polyurethane resin coating.
Background
The coating is a liquid or powder material, is coated on the surface of an object, forms a solid coating which is firmly attached, has certain strength and is a continuous solid coating after being dried and cured, has protection, decoration or other special functions on the coated object, and in order to ensure the use quality of the coating, in the filling link in the preparation flow of the coating, the coating needs to be sealed and canned by isolating air as far as possible, so that the premature curing of the coating is avoided;
an existing production and processing process of an acrylic coating with a patent number of CN201810325319.X discloses an operation step of mixing and filling an acrylic raw material by using filling equipment; be provided with the blanking head that can carry out vertical lift for coating collection dress device in this filling equipment, utilize the blanking head to stretch into to coating collection dress device in, avoid coating to produce extravagantly at the filling in-process, in addition, this filling equipment can also utilize the blanking head to stretch into to coating collection dress device in, reduce the degree of contact of coating and air, but can't isolated air seal the canning, still can lead to the premature curing of the coating that has the rapid-curing property.
Disclosure of Invention
In order to achieve the purpose of reducing the curing condition of the coating in the filling process, the invention adopts the following technical scheme:
the invention provides a polyurethane resin coating processing technology, wherein the color matching and filling steps in the technology are carried out through a coating filling device, and the technology comprises the following steps:
the method comprises the following steps: adding the coating raw materials into a reaction kettle to carry out alcoholysis reaction and polycondensation reaction in sequence to obtain a semi-finished coating;
then, the obtained paint semi-finished product is subjected to sealed filling treatment by a paint filling device, and is added into a paint split-charging barrel after transition of a filling stirring tank;
step two: pumping the semi-finished paint into a filling stirring tank, adding a pigment and a drier, and fully mixing the pigment and the semi-finished paint to obtain a paint finished product;
step three: controlling a communicating pipe fitting on the filling stirring tank to be inserted into a flow passage on the coating split charging barrel;
step four: pumping the finished paint in the stirring tank into a paint subpackaging barrel;
step five: and after filling is completed, the communicating pipe fitting is pulled out from the flow channel, the flow channel is blocked, and the end opening of the communicating pipe fitting is closed.
The structure of the coating filling device used in the polyurethane resin coating processing technology comprises a seat, a coating bucket positioning frame and a stirring arm;
a coating barrel positioning frame and a bracket are arranged on the seat, a filling stirring tank is arranged on the bracket, a coating split charging barrel is supported on the coating barrel positioning frame, and the upper side of the coating split charging barrel is rotatably connected with a stirring arm;
the coating split charging barrel is provided with a cover;
the top of the cover is provided with an edge, the lower side of the edge is provided with a strip-shaped groove, the outer side wall of the lower end of the cover is provided with a filling hole extending obliquely, the coating split charging barrel is provided with a matching hole, and the filling hole is communicated with the matching hole;
the filling stirring tank is provided with a filling pipe on the upper side, the lower end of the side part of the filling stirring tank is provided with a communicating pipe fitting, a pump is installed on the communicating pipe fitting, and the extending direction of the communicating pipe fitting can correspond to the axis of a flow channel formed by the filling hole and the matching hole, so that the communicating pipe fitting can be inserted into the flow channel formed by the filling hole and the matching hole.
The invention has the beneficial effects that:
the filling hole and the matching hole which are small in size are communicated with the communicating pipe fitting, and the closing of the filled flow channel and the communicating pipe fitting is controlled, so that the contact degree of air and the coating is reduced, and the aim of preventing the coating from being dried too early is fulfilled.
Drawings
The following drawings are only intended to illustrate and explain the invention schematically, wherein:
FIG. 1 is a flow chart of a process for producing a polyurethane resin coating according to the present invention;
FIG. 2 is a schematic view of the structure of the base, rail base and paint dispensing barrel of the present invention;
FIG. 3 is a schematic view of the construction of the paint dispensing canister, the adjustment bracket and the cover of the present invention;
FIG. 4 is a schematic view of the height limiting seat and the pressing arm of the present invention;
FIG. 5 is a schematic view of the construction of the paint bucket positioning frame, positioning arm and L-arm of the present invention;
FIG. 6 is a schematic view of the construction of the dispensing cartridge, positioning slot, capacity plate and adjustment bracket of the present invention;
FIG. 7 is a schematic view of the structure of the cap, the fill hole and the mating hole of the present invention;
FIG. 8 is a schematic view of the construction of the capacity plate and cover of the present invention;
FIG. 9 is a schematic view of the carriage and positioning arm of the dispensing cask according to the present invention;
FIG. 10 is a schematic diagram of the construction of the filling and stirring tank, the discharge pipe and the sliding pipe of the present invention;
FIG. 11 is a schematic view of the construction of a tapping tube, a sliding tube and an elastic tube according to the invention;
fig. 12 is a schematic structural view of the agitating arm and the valve plate of the present invention.
In the figure: a seat 11; a rail base 12; a paint bucket positioning frame 13; a positioning arm 14; an L-shaped arm 15; a bracket 16; a movable bracket 17; a paint split charging bucket 21; a positioning groove 22; a capacity disc 23; an adjustment bracket 24; a cover 25; a fill aperture 26; a fitting hole 27; a strip groove 28; a height restricting seat 31; a pressing arm 32; a carriage 41; a dispensing barrel positioning arm 42; a filling and stirring tank 51; a tapping pipe 52; a slide tube 53; an elastic tube 54; a seal pressing plate 55; an arc-shaped positioning sleeve 56; a stirring arm 61; a valve plate 62.
Detailed Description
Specific examples of the present invention will be explained below.
The processing technology of the polyurethane resin coating can process the easily dried coating of the urethane oil; because the urethane oil contains no residual isocyanate groups, it can be processed and formulated using conventional dry pigments and conventional methods.
Wherein in the step of transesterification for the coating: adding dry oil, polyol and a catalyst into a reaction kettle, introducing nitrogen, heating and stirring at 230-250 ℃ for 1-2 h to perform ester exchange reaction, analyzing a hydroxyl value and an acid value after an alcoholysis substance meets an index, and calculating the addition amount of TDI according to an analysis result. Then adding a solvent for azeotropic dehydration, and cooling the reaction liquid to 50 ℃;
wherein in the step of polycondensation reaction for the coating: adding TDI into alcoholysis product at 50 deg.C, keeping reaction temperature at 60-65 deg.C, stirring for half an hour, heating to 80-90 deg.C, and adding catalyst to make isocyanate react completely and NCO group disappear completely. When the temperature is cooled to 50-55 ℃, a small amount of methanol or ethanol can be added as a reaction terminator to eliminate residual NCO. In addition, a certain amount of solvent is added, and then an anti-skinning agent and a drier are added;
then, the obtained paint semi-finished product is subjected to sealing filling treatment by a paint filling device, and is added into the paint split-charging barrel 21 after transition of the filling stirring tank 51;
referring to fig. 2 to 5 and fig. 10 to 11, the detailed component structures of the paint filling apparatus used in the color matching and filling steps of the urethane resin paint processing process of the present application will be described;
when the semi-finished paint is filled in the stirring tank 51, the semi-finished paint is mixed with the pigment and the drier to prepare a finished paint;
the seat 11 is arranged on the ground, a coating bucket positioning frame 13 and a bracket are arranged on the seat 11, a filling stirring tank 51 is arranged on the bracket, and a coating split charging bucket 21 is supported on the coating bucket positioning frame 13;
the coating split charging barrel 21 is provided with a cover 25, and a capacity disc 23 is slidably arranged in the coating split charging barrel 21;
openings are formed in the upper side and the lower side of the coating split charging barrel 21, limiting edges are arranged at the positions of the openings, and the limiting edges are used for limiting the capacity disc 23;
the volumetric disc 23 is placed into the paint subpackaging barrel 21 before the paint subpackaging barrel 21 bends the limiting edge;
the outer side wall of the capacity disc 23 is tightly connected with the inner wall of the paint subpackaging barrel 21 in a propping and fitting manner, so that sealing treatment is realized;
the top of the capacity plate 23 can be attached and connected with the lower side surface of the cover 25, so that the residual air of the paint subpackaging barrel 21 is reduced before the paint is filled;
the top of the cover 25 is provided with a rim, the lower side of the rim is provided with a strip-shaped groove 28, the outer side wall of the lower end of the cover 25 is provided with a filling hole 26 which extends obliquely, the coating subpackaging barrel 21 is provided with a matching hole 27, the filling hole 26 is communicated with the matching hole 27, and the cross sections of the end parts of the communicated parts of the filling hole 26 and the matching hole 27 are overlapped;
a material filling pipe is arranged on the upper side of the filling and stirring tank 51, a communicating pipe is arranged at the lower end of the side part of the filling and stirring tank 51, a pump is arranged on the communicating pipe, and the communicating pipe can be inserted into a flow channel formed by the material filling hole 26 and the matching hole 27;
the material enters the filling and stirring tank 51 through the filling pipe.
Referring to fig. 2, 10 and 12, an embodiment of mixing and stirring the paint semi-finished product and the color matching materials in the filling and stirring tank 51 by the stirring arm 61 in the color matching step in the polyurethane resin paint processing process according to the present application will be described;
a stirring arm 61 is rotatably connected to the filling stirring tank 51, a rotation driver is further mounted on the filling stirring tank 51, and an output shaft of the rotation driver is connected with the stirring arm 61 through a coupler;
starting a rotary driver, controlling the stirring arm 61 to stir the coating in the filling stirring tank 51, wherein the rotary driver can be a stepping motor or a servo motor;
the valve plate 62 is arranged on the stirring arm 61; and starting the rotary driver to enable the stirring arm 61 to drive the valve plate 62 to seal the position, communicated with the discharge pipe 52, of the inner side of the filling stirring tank 51, so that the sealing control effect on the end part of the elastic pipe 54 is further improved.
Referring to fig. 2 to 3 and fig. 6 to 8, embodiments for preventing the premature drying of the coating material by setting the structure of the coating material dispensing barrel in the filling step of the urethane resin coating material processing process according to the present application will be described;
the cover 25 is clamped at the upper opening of the paint subpackaging barrel 21 through interference fit, under the condition of no external force, the lower end of the cover 25 can be attached to the lower side surface of the limiting edge of the upper opening of the paint subpackaging barrel 21, and when the upper side of the capacity disc 23 is abutted to the lower end of the cover 25, the cover is abutted to and matched with the lower side surface of the limiting edge, so that the air residue of the paint subpackaging barrel 21 before being filled with paint is further reduced;
at the moment, the inside and the outside of the paint split charging barrel 21 are communicated only through the filling hole 26 and the matching hole 27;
the cover 25 is clamped in the opening at the upper side of the paint subpackaging barrel 21 through interference fit, under the condition of applying external force, the cover 25 can be embedded into the opening at the upper side of the paint subpackaging barrel 21, and at the moment, the lower side surface of the top edge of the cover 25 is abutted against the upper side surface of the paint subpackaging barrel 21;
a strip-shaped groove 28 arranged on the lower side of the top edge of the cover 25 for prying the cover 25 open and then using the paint in the paint split charging bucket 21.
Adjusting bracket 24 is installed to the downside of capacity dish 23, and adjusting bracket 24 runs through the downside opening of coating partial shipment bucket 21, and the spacing support of adjusting bracket 24 through the coating filling device is fixed a position, realizes the position control to capacity dish 23, further keeps the sealed effect of coating in the coating partial shipment bucket 21, and it is remaining to reduce the air after the coating filling, in addition, can also carry out the filling to the product of required different capacity.
Referring to fig. 2 to 3, fig. 6 to 8, and fig. 10 to 11, the embodiment of the present application for filling the coating material through the communication between the coating material dispensing container and the communication pipe in the filling step of the urethane resin coating material processing process will be described;
the communicating pipe comprises a discharge pipe 52, a sliding pipe 53 and an elastic pipe 54;
the lower end of the side part of the filling and stirring tank 51 is communicated and fixedly connected with a discharge pipe 52, a sliding pipe 53 is inserted in the discharge pipe 52 in a sliding manner, a first telescopic driver for driving the sliding pipe 53 to slide is installed on the discharge pipe 52, and the movable end of the first telescopic driver is fixedly connected with the sliding pipe 53;
the discharge pipe 52 is provided with a pump, and the position of the pump is arranged outside the sliding range of the sliding pipe 53;
the end part of the sliding pipe 53 is fixedly connected and communicated with the elastic pipe 54, the groove plates on the two sides of the sliding pipe 53 are respectively connected with a sealing extrusion plate 55 in a sliding way, the two sealing extrusion plates 55 are symmetrically arranged, and the sealing extrusion plates 55 can be inserted into a flow channel formed by the filling hole 26 and the matching hole 27 together with the elastic pipe 54, so that the limiting effect on the elastic pipe 54 is improved;
by starting the first telescopic driver, the sliding tube 53 drives the elastic tube 54 to be inserted into a flow channel formed by the pouring hole 26 and the matching hole 27; the telescopic driver can be an electric telescopic rod or a hydraulic cylinder;
a second telescopic driver for driving the sealing extrusion plate 55 to slide is installed on the slot plate, the movable end of the second telescopic driver is fixedly connected with the sealing extrusion plate 55, and the two sealing extrusion plates 55 extrude the end part of the elastic tube 54 by starting the second telescopic driver, so that the sealing control effect on the end part of the elastic tube 54 is improved; the telescopic driver can be an electric telescopic rod or a hydraulic cylinder;
the fill aperture 26 is offset a distance at the bottom edge of the lid 25, not extending through the bottom edge of the lid 25, such that the fill aperture 26 has a complete annular cross-section within the lid 25, and finally forms an annular inner wall within the lid 25;
when the sealing extrusion plate 55 and the elastic tube 54 are inserted into the flow channel formed by the filling hole 26 and the matching hole 27 together, the filling hole 26 and the sealing extrusion plate 55 are limited in two directions, so that the cover 25 is prevented from falling off, and the filling effect of the coating is improved;
further, an arc-shaped positioning sleeve 56 is mounted on the seal pressing plate 55, and the limiting effect on the elastic tube 54 is further improved by the arc-shaped positioning sleeve 56.
Referring to fig. 2 to 3, fig. 6 to 8, and fig. 10 to 11, the present application will be described with reference to an embodiment in which the coating material dispensing container 21 is sealed after filling by the communication between the coating material dispensing container and the communication pipe in the filling step of the urethane resin coating material processing process;
the cover 25 is clamped at the upper opening of the paint subpackaging barrel 21 through interference fit, under the condition that no external force is applied, the lower end of the cover 25 can be attached to the limiting edge of the upper opening of the paint subpackaging barrel 21 along the lower side surface, and the material filling hole 26 is communicated with the matching hole 27;
then, filling the coating through a communicating pipe fitting, so that the coating enters the coating split charging barrel 21 through a flow passage formed by the filling hole 26 and the matching hole 27;
after the completion filling operation, exert vertical extrusion force to lid 25, make lid 25 imbed in the upper side opening of coating partial shipment bucket 21, make and irritate material hole 26 and mating holes 27 and stagger, accomplish the shutoff to the runner to the edge at lid 25 top covers the upside of mating holes 27 this moment, realizes the sealed processing after the filling.
Referring to fig. 2 to 7, an embodiment of positioning and conveying the paint dispensing tub 21 by the paint tub positioning frame 13 in the filling step in the urethane resin paint processing process in the present application will be described;
a plurality of positioning arms 14 are fixedly connected to the two paint bucket positioning frames 13, a plurality of groups of positioning grooves 22 are formed in the side portions of the paint subpackaging buckets 21, and the paint subpackaging buckets 21 can be held by hands easily through the positioning grooves 22;
further, the positioning groove 22 is matched with the positioning arm 14 in a clamping manner, so that the operation of supporting the paint split charging barrel 21 is completed;
in this process, the plurality of paint sub-tanks 21 are inserted between the plurality of positioning arms 14 on both sides from the end portions, and manually slide-conveyed between the plurality of positioning arms 14 on both sides, so that the paint sub-tanks 21 pass through the communicating pipe member in sequence, and then the plurality of paint sub-tanks 21 are filled with paint by the communicating pipe member.
Referring to fig. 2 to 5, there will be described an embodiment of the present application in which the height position of the adjustment bracket 24 is controlled during the filling step in the urethane resin coating process;
a capacity disc 23 is vertically connected in the paint subpackaging barrel 21 in a sliding manner, the bottom of the capacity disc 23 is connected with an adjusting frame 24, the adjusting frame 24 is limited and supported by two brackets 16 on the seat 11, and the upper side of the capacity disc 23 is abutted against the lower side of the cover 25 by utilizing the position adjustment of the adjusting frame 24, so that no air is left in the paint subpackaging barrel 21 in an initial state;
the adjusting frame 24 is clamped between the two brackets 16, and the side parts of the adjusting frame 24 are respectively attached to the inner side surfaces of the two brackets 16, so that the initial positioning effect is realized;
the slot at the bottom of the capacity disc 23 is connected with the adjusting frame 24 in a clamping manner through interference fit, so that the locking connection of the two is realized.
The coating bucket positioning frame 13 is fixedly connected with an L-shaped arm 15, the L-shaped arm 15 is connected with a movable bracket 17 in a sliding mode, the movable bracket 17 is movably arranged between the two brackets 16, the upper side face of the movable bracket 17 can be connected with the upper side faces of the two brackets 16 in an attaching mode, a third telescopic driver is installed on the L-shaped arm 15, and the movable end of the third telescopic driver is fixedly connected with the movable bracket 17.
When the paint split charging barrel 21 moves to the position of the communicating pipe fitting, the upper side surfaces of the movable brackets 17 are kept jointed with the upper side surfaces of the two brackets 16;
when filling the coating through the intercommunication pipe fitting, start the flexible driver of third, drive movable bracket 17 and go up and down to make alignment jig 24 move down at the coating filling in-process, through the position control to capacity dish 23, further keep the sealed effect of coating in the coating partial shipment bucket 21, it is remaining to reduce the air after the coating filling, in addition, can also carry out the filling to the product of required different capacity.
Referring to fig. 2 to 5 and 9, a description will be given of an embodiment of the present application for positioning a plurality of paint dispensing barrels 21 in a filling step in a urethane resin paint processing process;
the upper side of the seat 11 is fixedly connected with a track seat 12, a sliding frame 41 is connected in the track seat 12 in a sliding manner, a subpackaging barrel positioning arm 42 is connected on the sliding frame 41 in a sliding manner, the subpackaging barrel positioning arm 42 is formed by connecting a plurality of U-shaped arms through a long plate, a fourth telescopic driver is installed on the track seat 12, the movable end of the fourth telescopic driver is fixedly connected with the sliding frame 41, a fifth telescopic driver is installed on the sliding frame 41, and the movable end of the fifth telescopic driver is fixedly connected with the subpackaging barrel positioning arm 42; the telescopic driver can be an electric telescopic rod or a hydraulic cylinder;
by starting the fourth telescopic driver and the fifth telescopic driver, the sub-packaging barrel positioning arm 42 can position and move a plurality of paint sub-packaging barrels 21 on the two paint barrel positioning frames 13 in the horizontal shaking process;
two ends of the inner side of the U-shaped arm are attached to the side part of the paint subpackaging barrel 21;
the height limiting seat 31 is fixedly connected to the paint bucket positioning frame 13, and a pressing arm 32 is arranged on the height limiting seat 31;
the pressing arm 32 on the height limiting seat 31 is utilized to automatically press the cover 25 down when the filled paint split charging barrel 21 is driven by the U-shaped arm to move;
the cover 25 is inserted into the opening of the paint split charging barrel 21, the filling hole 26 is staggered with the matching hole 27, the flow channel is sealed, and the upper side of the matching hole 27 is covered by the edge of the top of the cover 25.
Claims (10)
1. A processing technology of polyurethane resin paint is characterized in that: the method comprises the following steps:
the method comprises the following steps: adding the coating raw materials into a reaction kettle to carry out alcoholysis reaction and polycondensation reaction in sequence to obtain a semi-finished coating;
step two: pumping the semi-finished paint into a filling stirring tank (51), adding a coloring material and a drier, and fully mixing the coloring material and the semi-finished paint to obtain a paint finished product;
step three: controlling a communicating pipe fitting on the filling stirring tank (51) to be inserted into a flow channel on the coating split charging barrel (21);
step four: pumping the finished paint in the stirring tank (51) into a paint subpackaging barrel (21);
step five: and after filling, pulling out the communicating pipe fitting from the flow channel, plugging the flow channel, and closing the end opening of the communicating pipe fitting.
2. The process for producing a polyurethane resin coating according to claim 1, wherein: the filling stirring tank (51) is arranged on the seat (11) through a bracket;
still install on seat (11) and be used for carrying out the coating bucket locating rack (13) that hold up to coating partial shipment bucket (21), install lid (25) on coating partial shipment bucket (21), lid (25) can block at coating partial shipment bucket (21) upside opening part, the lateral part of lid (25) is equipped with to coating partial shipment bucket (21) inside irritate material hole (26) that extend, the extending direction of irritating material hole (26) is on coating partial shipment bucket (21) along the department and is formed mating holes (27), irritate material hole (26) and mating holes (27) intercommunication state under, form the runner that supplies the intercommunication pipe fitting to pass.
3. The polyurethane resin paint processing process according to claim 2, wherein: the cover (25) can be embedded into an opening of the coating split charging barrel (21) under the action of vertical extrusion force, so that the filling hole (26) and the matching hole (27) are staggered, a flow channel is plugged, and the upper side of the matching hole (27) is covered by the edge of the top of the cover (25).
4. The polyurethane resin paint processing process according to claim 2, wherein: the lateral part of the paint subpackaging barrel (21) is provided with a plurality of groups of positioning grooves (22) which are convenient for the paint subpackaging barrel (21) to hold.
5. The polyurethane resin paint processing technique according to claim 4, wherein: the paint bucket positioning frame (13) is transversely provided with positioning arms (14) in an extending mode, and the paint sub-packaging buckets (21) are supported by utilizing the clamping sliding fit between the positioning arms (14) on the two sides and the positioning grooves (22) on the side portions of the paint sub-packaging buckets (21).
6. The polyurethane resin paint processing process according to claim 2, wherein: the communicating pipe fitting comprises a discharging pipe (52), a sliding pipe (53) and an elastic pipe (54), the discharging pipe (52) is arranged at the lower end of the side part of the filling stirring tank (51), the sliding pipe (53) is arranged in the discharging pipe (52) in a sliding and inserting mode, the end part of the sliding pipe (53) is communicated with the elastic pipe (54), two sealing extrusion plates (55) are symmetrically and slidably connected to a groove plate on the sliding pipe (53), and the sealing extrusion plates (55) and the elastic pipe (54) are inserted into a flow channel together.
7. The polyurethane resin paint processing process according to claim 2, wherein: the filling stirring tank (51) is connected with a stirring arm (61) in a rotating mode, and a valve plate (62) capable of plugging the discharge pipe (52) is installed on the stirring arm (61).
8. The process for producing a polyurethane resin coating according to claim 6, wherein: an arc-shaped positioning sleeve (56) is arranged on the sealing extrusion plate (55) and can limit the elastic pipe (54).
9. The polyurethane resin paint process according to claim 3 or 2, wherein: the material filling hole (26) does not penetrate through the bottom edge of the cover (25), so that the material filling hole (26) is provided with an annular inner wall in the cover (25).
10. The polyurethane resin paint processing technique according to claim 3, wherein: a strip-shaped groove (28) is arranged along the lower side of the top of the cover (25).
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| CN115417366B (en) | 2024-07-09 |
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Effective date of registration: 20240613 Address after: 512400 Pearl Industrial Park, Nanxiong, Shaoguan, Guangdong Applicant after: Nanxiong Malay environmental protection printing ink Co.,Ltd. Country or region after: China Address before: No. 57, Huangpujiang Road, Economic and Technological Development Zone, Huangdao District, Qingdao, Shandong 266,400 Applicant before: Xu Donghai Country or region before: China |
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