CN114670418A

CN114670418A - Preparation process of polyurethane with oxidation resistance

Info

Publication number: CN114670418A
Application number: CN202210454267.2A
Authority: CN
Inventors: 仇进华; 赵秀华
Original assignee: Yantai Longda Resin Co ltd
Current assignee: Yantai Longda Resin Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-06-28
Anticipated expiration: 2042-04-27
Also published as: CN114670418B

Abstract

The invention discloses a preparation process of polyurethane with oxidation resistance, which comprises the following steps: the method comprises the steps of firstly putting raw materials and powder materials into a mixing barrel from a material guide cover and a powder adding barrel respectively for mixing and stirring, then starting a servo electric cylinder to drive a material separating plate to move out and discharge, then starting an electric heating pipe for hot melting into glue, then starting an air compressor to introduce air into a vent pipe, filling the air into a corrugated pipe and further extruding a rubber plate to extend into the hot melting barrel, and simultaneously starting a forward and reverse rotating motor to drive a pair of adjusting plates to control the internal space of a rubber outlet nozzle. According to the invention, the powder adding device arranged at the top end of the mixing barrel is used for plugging the top end port, so that ash is prevented from being raised when raw materials and powder are mixed and stirred; through the play mucilage binding that sets up in hot melt bobbin bottom, utilize to drive a pair of regulating plate that the board mechanism goes out the inside gluey mouth of being close to or keep away from to change the interior width of a gluey mouth, replace the play gluey mouth through changing different specifications, and avoid increasing the process, reduce the waste of time.

Description

Preparation process of polyurethane with oxidation resistance

Technical Field

The invention relates to the technical field of plastic processing, in particular to a preparation process of polyurethane with oxidation resistance.

Background

The full name of polyurethane is polyurethane, which is a high molecular compound. The soft polyurethane has a thermoplastic linear structure and good heat insulation, sound insulation, shock resistance and gas resistance. The oxidation process of the polymer is a chain reaction of the free radical type. Plastic antioxidants are substances which either trap reactive free radicals, generate non-reactive free radicals, or decompose polymer hydroperoxides generated during oxidation, terminate the chain reaction, and retard the oxidation of the polymer. Thereby enabling the polymer to be processed smoothly and prolonging the service life. The antioxidant is added in the mixing process of the polyurethane raw materials to obtain the polyurethane with the antioxidant performance.

However, in the process of mixing the raw materials, a large amount of dust is generated due to the pouring of various raw materials and toner, so that the indoor environment is polluted, and the safe work of workers is not facilitated; in addition, the glue nozzles with different specifications are replaced in the traditional process to obtain glue bodies with different widths, the replacement is troublesome and time-consuming, and the manufacturing cost of the glue nozzles with different specifications is increased.

Disclosure of Invention

The invention aims to provide a preparation process of polyurethane with oxidation resistance, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides a preparation process of polyurethane with oxidation resistance, which comprises the following steps:

firstly, material placing:

s1, pouring the raw materials onto a material guiding cover of an anti-oxidation polyurethane preparation device and sliding into a mixing barrel;

s2, lowering the pull ring to enable the cover plate to fall down to block the guide cover, and hanging the pull ring on the fixed wire frame;

s3, pouring the toner on a barrel cover plate at the top port of the toner adding barrel to automatically turn over so that the toner falls into the mixing barrel;

II, stirring stage:

s4, starting a stirring motor to drive a plurality of stirring rods to rotate so as to stir the raw materials and the toner to be fully mixed;

thirdly, discharging:

s5, restarting the servo electric cylinder to drive the material separating plate to move out of the bottom port of the material mixing barrel;

s6, starting a servo electric cylinder to drive the material separating plate to move into the bottom port of the material mixing barrel;

at the moment, the operations of the first step and the second step can be continuously repeated to mix and stir the raw materials and the toner;

fourthly, hot melting stage:

s7, starting an electric heating pipe to melt the mixture falling into the hot melting cylinder into fluid glue;

fifthly, glue discharging stage:

s8, starting the air compressor again to introduce a large amount of air into the vent pipe, filling the air into the corrugated pipe to expand and extend the corrugated pipe downwards, and extruding the rubber plate to extend into the hot melting cylinder;

s9, starting a forward and reverse rotation motor to rotate forward to drive a pair of adjusting plates to control the internal space of the glue outlet nozzle;

sixthly, a shaping stage:

s10, introducing the glue extruded from the glue outlet at a fixed distance into a glue fixing groove of the static die holder, and simultaneously injecting recyclable cold water into the water tank;

s11, starting a servo motor to drive a plurality of rubber pressing plates on the movable die holder to rotate for a half circle and correspondingly clamp the rubber pressing plates into an upper opening of the rubber fixing groove until the rubber is cooled and shaped;

s12, pulling out the shaped film, putting the film on a roller at the outer end of the water tank, and intensively rolling the film to prepare a soft film or a soft adhesive tape;

the polyurethane preparation device with the oxidation resistance comprises a mixing barrel and a hot melting barrel arranged at the bottom end of the mixing barrel in a communicated mode, wherein an agitating mechanism is installed in the mixing barrel, the outer sleeve of the hot melting barrel is provided with a powder adding device which is not communicated with the external environment, a discharging device used for discharging mixed materials in the mixing barrel and extruding fluid glue in the hot melting barrel is arranged at the joint of the mixing barrel and the hot melting barrel, and a material separating port is formed in one radial side of the joint of the mixing barrel and the hot melting barrel.

As a further improvement of the technical scheme, the powder adding device comprises a powder adding barrel arranged on a central shaft of a mixing barrel, a material guiding cover used for supporting the powder adding barrel, a plurality of cover plates rotationally connected with a central hole of the material guiding cover and a lifting plate mechanism used for lifting the plurality of cover plates to be turned upwards, a turnover barrel cover plate is connected into a top port of the powder adding barrel in a clamping mode, the discharging device comprises a material separating plate used for blocking the space between the mixing barrel and the hot melting barrel, a servo electric cylinder used for driving the material separating plate to move out of an area above the hot melting barrel and a rubber outlet plate suspended below the material separating plate, a foldable corrugated pipe is bonded between the rubber outlet plate and the material separating plate, a vent pipe is embedded into one side of the top of the corrugated pipe in a penetrating mode, and the rubber outlet plate is connected with the hot melting barrel in a clamping mode and is matched with the size.

As a further improvement of this technical scheme, the guide lid is hopper-shaped and is that the equidistant welding of annular has a plurality of platforms of sealing in its bottom port, the apron seals platform joint and rotatable with two adjacent, the straight flange end bottom of apron extends outward and is equipped with a cover tube plate, a cover tube plate is triangle-shaped, and a plurality of cover tube plates are annular combination shutoff in adding powder bobbin bottom port department.

As a further improvement of the technical scheme, the plate lifting mechanism comprises a plurality of drawn wires connected with a plurality of cover plates, a plurality of drawn wire top end welded drawing rings and a fixed wire frame used for positioning the drawing rings and the drawn wires, the cover plate is welded with a pull ring on the top surface close to the arc end of the cover plate, the fixed wire frame is formed by a plurality of bending rods which extend vertically around a powder adding cylinder, rolling pins are arranged at intervals on the outer side of the lower half section of each bending rod of the fixed wire frame, and hooks are arranged at intervals on the outer side of the upper half section of each bending rod of the fixed wire frame.

As a further improvement of the technical scheme, a guide rod is embedded in the bottom end of the mixing barrel and above the material separating port, the guide rod points to the middle of the material separating port, a sliding sleeve is welded on the top surface of one end of the material separating plate, which is far away from the servo electric cylinder, a fixing ring which is connected with a rubber plate in a clamping mode is welded on the bottom surface of the material separating plate, a pulling block is sleeved on the outer end of a piston rod of the servo electric cylinder, and a pull rod is welded on the material separating plate towards the middle of the outer end.

As a further improvement of the technical scheme, the upper end and the lower end of the central shaft of the stirring rod are sleeved with the backing rings, the top end of the central shaft of the stirring rod is tightly sleeved with the end face gear, an output shaft of the stirring motor penetrates into the mixing barrel and is coaxially connected with a driving gear, the driving gear is meshed with the end face gear, and the outer part of the electric heating pipe is covered with a heat preservation cover.

As a further improvement of this technical scheme, the bottom of a hot melt section of thick bamboo is provided with out mucilage binding and puts, it drives the trigger structure including being out the box-like play jiao zui of oblate, being located a pair of regulating plate of going out jiao zui and being used for driving that a pair of regulating plate is close to or keeps away from to go out mucilage binding, the regulating plate is the straight-bar and bends perpendicularly and its horizontal segment runs through out the top side of jiao zui.

As a further improvement of the technical scheme, the plate driving mechanism comprises a pair of racks which are distributed vertically and opposite in direction, a driving gear meshed with the racks and a forward and reverse motor coaxially connected with the driving gear, push-pull strips are welded at the outward ends of the racks, round rods arranged in parallel with the racks are welded on the inner sides of the upper ends of the push-pull strips, and the outer ends of the round rods are welded with the vertical sections of the adjusting plates.

As a further improvement of the technical scheme, one side of the mixing barrel is provided with a shaping device, the shaping device comprises a water tank, a static die holder embedded in the water tank, a movable die holder suspended above the water tank and a servo motor for driving the movable die holder to rotate, the static die holder is of an arc shell structure, a plurality of glue fixing grooves are formed in a concave arc surface of the static die holder, the glue fixing grooves are communicated, the width of the glue fixing grooves is gradually widened from an outer arc surface to an inner arc surface, and the movable die holder comprises a glue inlet plate arranged on an opening at one end of the glue fixing grooves and a plurality of glue pressing plates welded on the bottom surface of the glue inlet plate and correspondingly spliced with the glue fixing grooves.

As a further improvement of the technical scheme, the upper part and the lower part of one end side face of the water tank are both communicated with water service pipes, rotatable rubber guide rollers are arranged on the top face of the water tank and positioned at two ends of the static die holder, and the two ends of the static die holder are welded to the outer side face of the static die holder to form a lapping block.

Compared with the prior art, the invention has the beneficial effects that:

1. in this antioxidant property polyurethane's preparation technology, through the compounding bucket and the hot melt section of thick bamboo of the integrative structure that sets up to set up discharging device between the two, but utilize the flitch that separates of reciprocating translation as compounding bucket bottom plate with the pocket live raw materials stirring and mix, regard as the roof of hot melt section of thick bamboo again with shutoff its inside temperature, make compounding and melt needn't shift and waste time, practical value has.

2. In this antioxidant property polyurethane's preparation technology, through the powder device that adds that sets up on compounding bucket top for shutoff top port mouth avoids raw materials and powder to mix when stirring and raises the ash, sets up the lifter plate mechanism simultaneously and is used for lifting the closing cap board and opens the opening, so that the raw materials is poured into smoothly, has practical value.

3. In this preparation technology of antioxidant property polyurethane, through the play mucilage binding that sets up at hot melt bobbin bottom, utilize to drive a pair of regulating plates that the board mechanism goes out the inside gluey mouth and be close to or keep away from to change out gluey mouth internal width, obtain different widths when making the colloid extrude, replace the play gluey mouth through changing different specifications, and avoid increasing the process, reduce the waste of time.

4. In the preparation process of the polyurethane with the oxidation resistance, the turnover cylinder cover plate is clamped in the top port of the powder adding cylinder, and after toner is poured on the turnover cylinder cover plate, the turnover cylinder cover plate can turn over and fall down, and the powder adding cylinder can be automatically turned over in time to block the powder adding cylinder, so that dust is prevented from being blown out.

Drawings

FIG. 1 is a schematic view of an overall assembly structure of embodiment 1;

FIG. 2 is a front view of the mixing bowl of example 1;

FIG. 3 is a schematic view of the elevation state structure of the mixing bowl in example 1;

FIG. 4 is an assembled front view of the stirring mechanism of embodiment 1;

FIG. 5 is an exploded view of the stirring mechanism of embodiment 1;

FIG. 6 is a schematic view showing the assembling structure of the powdering device in a depression angle state according to embodiment 1;

FIG. 7 is a schematic view of an assembly structure of the powder feeder in an elevation angle state according to embodiment 1;

FIG. 8 is a partial assembly view of the powder adding apparatus according to embodiment 1;

fig. 9 is a schematic view of the material guide cover structure of embodiment 1;

FIG. 10 is an exploded view of the lifting mechanism of embodiment 1;

FIG. 11 is a disassembled view of cover plates of embodiment 1;

FIG. 12 is a partially exploded view of the discharging device in example 1;

FIG. 13 is a schematic view showing an assembling structure of a material partitioning plate according to embodiment 1;

FIG. 14 is a schematic view showing an assembling structure of the glue discharging device in embodiment 1;

FIG. 15 is a schematic view of an assembling structure of a plate drive mechanism according to embodiment 1;

FIG. 16 is a schematic view showing the structure of the open state of the setting device in example 1;

fig. 17 is a schematic structural view of a mold clamping state of the molding device of embodiment 1;

FIG. 18 is a disassembled view of the movable mold base in accordance with embodiment 1;

fig. 19 is a schematic structural view of the stationary die holder according to embodiment 1.

The various reference numbers in the figures mean:

100. a mixing barrel; 101. a hot-melt cylinder; 102. a material separating port; 103. a guide bar; 110. a stirring mechanism; 111. a stirring rod; 112. a backing ring; 113. a stirring motor; 114. a driving gear; 115. a face gear; 120. an electric heating tube; 130. a heat-preserving cover;

200. a powder adding device; 210. adding a powder cylinder; 220. a material guiding cover; 221. a sealing table; 222. perforating; 230. sealing the cover plate; 231. a cylinder sealing plate; 232. a pull ring; 240. a plate lifting mechanism; 241. drawing wires; 242. pulling a ring; 243. a wire fixing frame; 2431. rolling a pin; 2432. hooking; 250. a cartridge cover plate;

300. a discharging device; 310. a material separating plate; 311. a sliding sleeve; 312. a fixing ring; 320. a servo electric cylinder; 321. pulling the block; 322. a pull rod; 330. discharging the rubber plate; 340. a bellows; 350. a breather pipe;

400. a glue discharging device; 410. a glue outlet; 420. an adjusting plate; 430. a plate driving mechanism; 431. a rack; 4311. pushing the pull strip; 432. a drive gear; 433. a positive and negative rotation motor;

500. a shaping device; 510. a water tank; 511. a rubber guide roller; 512. a water pipe; 520. a static die holder; 521. a glue fixing groove; 522. building blocks; 530. a movable die holder; 531. feeding a rubber plate; 532. pressing a rubber plate; 540. a servo motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central axis", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1

Referring to fig. 1-19, the present invention provides a preparation process of polyurethane with antioxidant property, which comprises the following steps:

firstly, a material discharging stage:

s1, pouring the raw materials onto a material guide cover 220 of the polyurethane preparation device with the anti-oxidation performance and sliding into a mixing barrel 100, and covering the raw materials by the material guide cover 220 to prevent dust generated by falling and lifting of the raw materials from polluting the working environment;

s2, lowering the pull ring 242 to make the cover plate 230 fall down to block the guide cover 220, and hanging the pull ring 242 on the wire fixing frame 243 to make the guide cover 220 completely closed;

s3, pouring the toner onto the barrel cover plate 250 at the top port of the toner adding barrel 210 to automatically turn over, so that the toner falls into the mixing barrel 100, the turned barrel cover plate 250 automatically balances and turns around, the top port of the toner adding barrel 210 is blocked again, and the situation that the working environment is polluted by dust raised after the toner falls is avoided;

II, stirring stage:

s4, starting the stirring motor 113 to drive the stirring rods 111 to rotate so as to stir the raw materials and the toner to be fully mixed;

thirdly, discharging:

s5, restarting the servo electric cylinder 320 to drive the material separating plate 310 to move out of the bottom end opening of the mixing barrel 100, so that the mixed raw materials fall into the hot melting barrel 101;

s6, starting the servo electric cylinder 320 to drive the material separating plate 310 to move into the bottom end opening of the mixing barrel 100, and enabling the bottom end opening of the mixing barrel 100 to be closed again;

at the moment, the operations of the first step and the second step can be continuously repeated to mix and stir the raw materials and the toner, and the arrangement of the material partition plate 310 enables the material mixing barrel 100 and the hot melting barrel 101 to be communicated for discharging and to work independently without mutual interference;

fourthly, hot melting stage:

s7, starting the electric heating pipe 120 to melt the mixture falling into the hot melting cylinder 101 into fluid glue;

fifthly, glue discharging stage:

s8, the air compressor is restarted to introduce a large amount of air into the vent pipe 350, and the air is filled into the corrugated pipe 340 to expand and extend downwards, so that the rubber plate 330 is extruded to extend into the hot melting cylinder 101, and the rubber extrusion of the fluid is completed to be discharged from the bottom port of the hot melting cylinder 101;

s9, starting the forward and reverse rotation motor 433 to rotate forward to drive the pair of adjusting plates 420 to control the internal spacing of the glue outlet nozzle 410 so as to discharge the extruded glue in a molding manner, wherein the spacing between the pair of adjusting plates 420 is different, so that adhesive tapes with different cross section sizes are obtained, and the replacement of the glue outlet nozzles 410 with different specifications is replaced, thereby avoiding the increase of working procedures and reducing the waste of time;

sixthly, a shaping stage:

s10, introducing the glue extruded from the glue outlet nozzle 410 at a certain distance into a glue fixing groove 521 of the static die holder 520, simultaneously injecting circulated cold water into the water tank, taking away the glue through the circulated cold water to transfer the temperature of the glue into the static die holder 520, and cooling and fixing the glue without contacting water;

s11, starting the servo motor 540 to drive the plurality of rubber pressing plates 532 on the movable die holder 530 to rotate for a half circle and correspondingly clamp the rubber at the upper opening of the fixed rubber groove 521 until the rubber is cooled and shaped, so that the rubber slides from the space formed by the fixed rubber groove 521 and the rubber pressing plates 532 to avoid the change of the size when the rubber is pulled out;

and S12, pulling out the formed film, putting the film on a winding roll at the outer end of the water tank, and intensively winding the film to prepare a soft film or a soft rubber strip, wherein the two ends of the winding roll are sleeved with a floor bracket, and one end of the winding roll is coaxially connected with a speed reduction motor for driving the winding roll to rotate and wind the formed soft film or the soft rubber strip.

In this embodiment, oxidation resistance polyurethane preparation facilities includes hot melt section of thick bamboo 101 that compounding bucket 100 and bottom intercommunication set up, installs rabbling mechanism 110 in the compounding bucket 100, and the outside cover of hot melt section of thick bamboo 101 is equipped with the top port of compounding bucket 100 and is provided with not with the communicating powder feeding device 200 of external environment for shutoff compounding bucket 100 top port, the dust diffusion that raw materials and powder were raised when avoiding annotating the material is indoor, and pollutes operational environment. The junction of compounding bucket 100 and hot melt cylinder 101 is provided with and is used for unloading the discharging device 300 of the interior miscompound of compounding bucket 100 and fluid glue in the extrusion hot melt cylinder 101, and the radial one side of the junction of compounding bucket 100 and hot melt cylinder 101 has been seted up and has been separated material mouth 102, and the internal diameter of compounding bucket 100 is greater than the internal diameter of hot melt cylinder 101, separates the interior diameter of upper port of material mouth 102 promptly and is greater than its lower port internal diameter. The powder adding device 200 comprises a powder adding barrel 210 arranged on the central shaft of the mixing barrel 100, a material guiding cover 220 used for supporting the powder adding barrel 210, a plurality of cover sealing plates 230 rotatably connected with the central hole of the material guiding cover 220 and a lifting plate mechanism 240 used for lifting the cover sealing plates 230 to be turned upwards, and the top end of the material guiding cover 220 is clamped on the top end of the mixing barrel 100, so that the powder adding device 200 can be conveniently and integrally taken down and installed. The plurality of cover plates 230 are driven to be upturned by lifting the lifting plate mechanism 240 to open the through holes, so that raw materials on the material guide cover 220 slide into the mixing barrel 100, the lower cover plate 230 is put down to seal the through holes timely, toner is put into the top end of the powder adding barrel 210, the turnable barrel cover plate 250 is clamped in the top end of the powder adding barrel 210, a circular shaft penetrates through one radial side of the barrel cover plate 250, two ends of the circular shaft are embedded into the inner wall of the powder adding barrel 210, and the outer edge of the barrel cover plate 250 is an arc surface, so that the barrel cover plate 250 can be turned freely. The discharging device 300 comprises a material separating plate 310 for blocking the space between the mixing barrel 100 and the hot melting barrel 101, a servo electric cylinder 320 for driving the material separating plate 310 to move out of the area above the hot melting barrel 101, and a discharging rubber plate 330 suspended below the material separating plate 310, wherein the material separating plate 310 is used as a bottom plate of the mixing barrel 100 to trap the raw materials for stirring and mixing, and is also used as a top plate of the hot melting barrel 101 to block the internal temperature. A foldable corrugated pipe 340 is bonded between the glue outlet plate 330 and the material partition plate 310, a vent pipe 350 is embedded in one side of the top of the corrugated pipe 340 in a penetrating manner, the glue outlet plate 330 is clamped with the hot melting cylinder 101 and is matched with the hot melting cylinder 101 in size, air is injected into the vent pipe 350 through an air compressor and is filled into the corrugated pipe 340, so that the corrugated pipe 340 expands and extends, the glue outlet plate 330 is further pushed to extend into the hot melting cylinder 101, and the molten soft glue is discharged from a bottom port of the hot melting cylinder 101.

Specifically, the guiding cover 220 is funnel-shaped, and a plurality of sealing platforms 221 are welded in the bottom port of the guiding cover at equal intervals in an annular manner, the sealing plate 230 is clamped with two adjacent sealing platforms 221 and can rotate, and a plurality of through holes 222 are formed between the sealing platforms 221 and are tightly sleeved with the powder adding cylinder 210. The bottom surface of the straight edge end of the cover plate 230 extends outward to form a cylinder sealing plate 231, the cylinder sealing plate 231 is triangular, and the cylinder sealing plates 231 are annularly combined and sealed at the bottom port of the powder adding cylinder 210 so as to seal the bottom port of the powder adding cylinder 210 and prevent dust from being ejected from the powder adding cylinder 210 when raw materials and toner are stirred and mixed. The weight of the cover plate 230 is greater than that of the cylinder plate 231, so that when the lifting plate 240 is lowered, the cover plate 230 can be turned down due to its own weight to be clamped between the adjacent sealing platforms 221 to form a sealing state.

Specifically, the lifting plate mechanism 240 includes a plurality of pull wires 241 connected to the plurality of cover plates 230, a pull ring 242 welded to the top end of the plurality of pull wires 241, and a wire fixing frame 243 for positioning the pull ring 242 and the plurality of pull wires 241, and the pull wires 241 are made of steel wires, so that the pull wires 241 are tensile and durable. The plurality of wires 241 are pulled by the lifting ring 242 to pull the cover plate 230 to be turned up, so that the raw material falls into the mixing barrel 100 from the opened opening. The top surface of the cover plate 230 close to the arc end is welded with a pull ring 232, and the bottom end of the wire drawing 241 is welded with a ring which is coaxially connected with the pull ring 232 through a pin. The wire fixing frame 243 is composed of a plurality of bending rods extending vertically and surrounding the powder feeding cylinder 210, and the bottom ends of the bending rods are welded with lantern rings tightly sleeved with the powder feeding cylinder 210. The outer side of the lower half section of each bending rod of the wire fixing frame 243 is provided with rolling pins 2431 at intervals, the lower half section of the wire fixing frame 243 is symmetrically welded with a circular ring sleeved with the rolling pins 2431, the outer side of the upper half section of each bending rod of the wire fixing frame 243 is provided with hooks 2432 at intervals and used for being clamped with the pull ring 242 for limiting, the inner diameter of the pull ring 242 is equal to the diameter formed by the surrounding of the hooks 2432, the pull ring 242 is annular strip-shaped and can be clamped into the hooks 2432 due to elasticity, and the drawn wire 241 penetrates through the gaps between the rolling pins 2431 and the bending rods of the wire fixing frame 243, so that the drawn wire is positioned and slid.

Further, a guide rod 103 is embedded in the bottom end of the mixing barrel 100 and above the material separating port 102, the guide rod 103 points to the middle of the material separating port 102, a sliding sleeve 311 is welded on the top surface of one end, away from the servo electric cylinder 320, of the material separating plate 310, the sliding sleeve 311 is sleeved with the guide rod 103 and can slide, and the material separating plate 310 is suspended and stable to hold the raw materials. The bottom surface of the material separating plate 310 is welded with a fixing ring 312 clamped with the rubber plate 330, and the vent pipe 350 penetrates through the fixing ring 312 so as to be stably placed. The outer end of a piston rod of the servo electric cylinder 320 is sleeved with a pull block 321, the middle of the outer end of the material separating plate 310 is welded with a pull rod 322, the outer end of the pull rod 322 is welded with the pull block 321, and the extension of the servo electric cylinder 320 is larger than the inner diameter of the hot-melting cylinder 101, so that the material separating plate 310 can move out of the range of the top end opening of the hot-melting cylinder 101.

Further, the upper and lower ends of the central shaft of the stirring rod 111 are sleeved with a retaining ring 112 for sleeving the mixing barrel 100 to support the stirring rod 111 to work stably. The top end of the central shaft of the stirring rod 111 is tightly sleeved with the face gear 115, and the top end of the central shaft of the face gear 115 is tightly sleeved with the umbrella-shaped cover plate, so that the toner falling from the toner adding cylinder 210 can smoothly slide into the mixing barrel 100 without polluting the face gear 115 and avoiding affecting the normal work of the mixing barrel. An output shaft of the stirring motor 113 penetrates into the mixing barrel 100 and is coaxially connected with a driving gear 114, the driving gear 114 is meshed with an end face gear 115, and a heat insulation cover 130 covers the outer portion of the electric heating pipe 120.

Besides, the bottom end of the hot melting cylinder 101 is provided with the glue discharging device 400, the glue discharging device 400 comprises a glue discharging nozzle 410 in the shape of a flat square box, a pair of adjusting plates 420 positioned in the glue discharging nozzle 410 and a plate driving mechanism 430 used for driving the pair of adjusting plates 420 to be close to or far away from, the top end of the glue discharging nozzle 410 is sleeved with an elliptical plate, and the elliptical plate is fixedly connected with the bottom end of the hot melting cylinder 101 through a bolt. The adjusting plate 420 is a straight rod and is bent vertically, the horizontal section of the adjusting plate penetrates through the top side end of the glue outlet nozzle 410, and the vertical section and the horizontal section of the adjusting plate 420 are used for plugging the inside of the glue outlet nozzle 410, so that glue in the hot melting cylinder 101 is shaped and flows out from the vertical sections of the adjusting plates 420.

Specifically, the driving plate mechanism 430 includes a pair of racks 431 distributed up and down and having opposite directions, a driving gear 432 engaged with the pair of racks 431, and a forward and reverse rotation motor 433 coaxially connected with the driving gear 432, and the working principle thereof is as well known to those skilled in the art, the forward and reverse rotation motor 433 is equipped with a forward and reverse rotation switch, and is connected with the forward and reverse rotation switch through a wire to form a forward and reverse rotation control circuit, the forward and reverse rotation switch has three gears, i.e., a forward and reverse gear and an intermediate gear, and the intermediate gear controls the motor to stop working, thereby facilitating smooth switching of forward and reverse rotation. The welding of the end outside of rack 431 has push-and-pull strip 4311, and the inboard welding of the upper end of push-and-pull strip 4311 has the round bar with rack 431 parallel arrangement, and the vertical section welding of round bar outer end and regulating plate 420, and the round bar runs through out jiao zui 410 side and drives regulating plate 420 and remove, and then the adjustment interval.

Besides, one side of the mixing barrel 100 is provided with a shaping device 500, the shaping device 500 comprises a water tank 510, a static die holder 520 embedded in the water tank 510, a rotatable movable die holder 530 suspended above the water tank 510 and a servo motor 540 for driving the movable die holder 530 to rotate, a rotating central shaft of the movable die holder 530 coincides with a circular central shaft of the static die holder 520, and the servo motor 540 is installed on the top surface of the water tank 510. The stationary mold base 520 is an arc-shaped shell structure, the concave arc surface of the stationary mold base is provided with a plurality of glue fixing grooves 521, the glue fixing grooves 521 are communicated, the width of the glue fixing grooves is gradually widened from the outer arc surface to the inner arc surface, and the glue fixing grooves are used for placing glue with different widths. The movable die holder 530 comprises a glue inlet plate 531 arranged on an opening at one end of the glue fixing groove 521 and a plurality of glue pressing plates 532 which are welded on the bottom surface of the glue inlet plate 531 and correspondingly inserted into the glue fixing grooves 521, and the top surface of the glue inlet plate 531 is provided with notches with the same width as the inner width of the glue fixing groove 521 so that glue can pass through the notches.

Specifically, the upper and lower sides of the side surface of one end of the water tank 510 are both communicated with a water through pipe 512, a water suction pump is installed at the upper water through pipe 512, the water inlet end of the water suction pump is connected to a water pool through a water pipe, and then the water pipe inserted into the lower water through pipe 512 is introduced into the water pool. Rotatable glue guiding rollers 511 are arranged on the top surface of the water tank 510 and located at two ends of the static die holder 520, so that the glue is guided to slide into and out of the water tank 510, and the water tank is prevented from being damaged by friction. The two ends of the static die holder 520 are welded with the blocks 522 to suspend the static die holder 520 in the water tank 510.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A preparation process of polyurethane with oxidation resistance is characterized by comprising the following steps: the method comprises the following steps:

firstly, material placing:

s1, pouring the raw materials onto a material guide cover (220) of the polyurethane preparation device with the anti-oxidation performance and sliding into a mixing barrel (100);

s2, lowering the pull ring (242) to enable the sealing cover plate (230) to fall down to seal the guide cover (220), and hanging the pull ring (242) on the wire fixing frame (243);

s3, pouring the toner on a cylinder cover plate (250) at the top port of the toner adding cylinder (210) to automatically turn over, so that the toner falls into the mixing barrel (100);

II, stirring stage:

s4, starting a stirring motor (113) to drive a plurality of stirring rods (111) to rotate so as to stir the raw materials and the toner to be fully mixed;

thirdly, discharging:

s5, restarting the servo electric cylinder (320) to drive the material separating plate (310) to move out of the bottom port of the mixing barrel (100);

s6, starting a servo electric cylinder (320) to drive a material separating plate (310) to move into the bottom end opening of the mixing barrel (100);

fourthly, hot melting stage:

s7, starting the electric heating pipe (120) to melt the mixture falling into the hot melting cylinder (101) into fluid glue;

fifthly, glue discharging stage:

s8, the air compressor is restarted to introduce a large amount of air into the vent pipe (350), and the air is filled into the corrugated pipe (340) to expand and extend downwards, so that the rubber plate (330) is extruded to extend into the hot melt cylinder (101);

s9, then a forward and reverse rotation motor (433) is started to rotate forward to drive a pair of adjusting plates (420) to control the internal space of the glue outlet nozzle (410);

sixthly, a shaping stage:

s10, introducing glue extruded from the glue outlet nozzle (410) at a fixed distance into a glue fixing groove (521) of the static die holder (520), and simultaneously injecting circulated cold water into the water tank;

s11, starting a servo motor (540) to drive a plurality of rubber pressing plates (532) on a movable die holder (530) to rotate for a half circle and correspondingly clamp into an upper opening of a rubber fixing groove (521) until the rubber is cooled and shaped;

the polyurethane preparation device with the oxidation resistance comprises a mixing barrel (100) and a hot melting barrel (101) arranged at the bottom end of the mixing barrel (100), wherein a stirring mechanism (110) is installed in the mixing barrel (100), the outer sleeve of the hot melting barrel (101) is provided with a powder adding device (200) which is not communicated with the external environment, a discharging device (300) used for discharging mixed materials in the mixing barrel (100) and extruding fluid glue in the hot melting barrel (101) is arranged at the joint of the mixing barrel (100) and the hot melting barrel (101), and a material separating opening (102) is formed in the radial side of the joint of the mixing barrel (100) and the hot melting barrel (101).

2. The process for preparing polyurethane with antioxidant property according to claim 1, wherein the process comprises the following steps: the powder adding device (200) comprises a powder adding cylinder (210) arranged on a central shaft of a mixing barrel (100), a material guide cover (220) used for supporting the powder adding cylinder (210), a plurality of cover plates (230) rotatably connected with a central hole of the material guide cover (220) and a lifting plate mechanism (240) used for lifting the plurality of cover plates (230) to turn upwards, a reversible cylinder cover plate (250) is clamped in a top port of the powder adding cylinder (210), the discharging device (300) comprises a material separating plate (310) used for sealing the mixing barrel (100) and a hot melting cylinder (101), a servo electric cylinder (320) used for driving the material separating plate (310) to move out of an area above the hot melting cylinder (101) and a rubber discharging plate (330) suspended below the material separating plate (310), a foldable corrugated pipe (340) is bonded between the rubber discharging plate (330) and the material separating plate (310), and a vent pipe (350) penetrates through one side of the top of the corrugated pipe (340), go out offset plate (330) and hot melt section of thick bamboo (101) joint and size looks adaptation.

3. The process for preparing polyurethane with antioxidant property according to claim 2, wherein: the guide cover (220) are hopper-shaped and are the equidistant welding of annular in its bottom port and have a plurality of platforms (221) of sealing, it seals platform (221) joint and rotatable to seal apron (230) and adjacent two, the straight flange end bottom of sealing apron (230) extends outward and is equipped with a cover tube plate (231), cover tube plate (231) are triangle-shaped, and a plurality of cover tube plates (231) are annular combination shutoff in adding powder section of thick bamboo (210) bottom port department.

4. The process for preparing polyurethane with antioxidant property according to claim 2, wherein the process comprises the following steps: the lifting plate mechanism (240) comprises a plurality of wire drawing (241) connected with a plurality of sealing cover plates (230), a plurality of wire drawing (241) top end welded ring drawing (242) and a wire fixing frame (243) used for positioning the ring drawing (242) and the plurality of wire drawing (241), the sealing cover plates (230) are welded with pull rings (232) on the top surface close to the arc ends of the sealing cover plates, the wire fixing frame (243) is formed by a plurality of bending rods which vertically extend around a powder adding cylinder (210), the outer side of the lower half section of each bending rod of the wire fixing frame (243) is provided with rolling pins (2431) at intervals, and the outer side of the upper half section of each bending rod of the wire fixing frame (243) is provided with hooks (2432) at intervals.

5. The process for preparing polyurethane with antioxidant property according to claim 2, wherein: the utility model discloses a material mixing barrel, including material mixing bucket (100), feed separating hole (102), guide rod (103) point to the middle part of feed separating hole (102), the one end top surface welding that separates flitch (310) and keep away from servo electronic jar (320) has sliding sleeve (311), the bottom surface welding that separates flitch (310) has solid fixed ring (312) with play offset plate (330) joint, pull block (321) have been cup jointed to the piston rod outer end of servo electronic jar (320), it has pull rod (322) to separate flitch (310) towards outer end middle part welding.

6. The process for preparing polyurethane with antioxidant property according to claim 2, wherein: the upper and lower end cover of puddler (111) center pin has connect trunnion ring (112), the center pin top of puddler (111) has closely cup jointed face gear (115), the output shaft of agitator motor (113) runs through to compounding bucket (100) in and coaxial coupling has driving gear (114), driving gear (114) with face gear (115) meshing, the outside cover of electric heating pipe (120) is equipped with heat preservation cover (130).

7. The process for preparing polyurethane with antioxidant property according to claim 2, wherein the process comprises the following steps: the bottom of a hot melt section of thick bamboo (101) is provided with out mucilage binding and puts (400), go out mucilage binding and put (400) including being out gluey mouth (410) of oblate square box-like, be located a pair of regulating plate (420) of going out gluey mouth (410) and be used for driving a pair of regulating plate (420) and be close to or drive board mechanism (430) of keeping away from, regulating plate (420) are the straight-bar and bend perpendicularly and form and its horizontal segment runs through out the top side of gluey mouth (410).

8. The process for preparing polyurethane with antioxidant property according to claim 7, wherein the process comprises the following steps: drive trigger structure (430) including be about distribution and directional opposite a pair of rack (431), with drive gear (432) of a pair of rack (431) meshing and with drive gear (432) coaxial coupling's positive reverse motor (433), the welding of the end outside of rack (431) has push-pull strip (4311), the inboard welding in upper end of push-pull strip (4311) has the round bar with rack (431) parallel arrangement, and the vertical section welding of round bar outer end and regulating plate (420).

9. The process for preparing polyurethane with antioxidant property according to claim 2, wherein: one side of compounding bucket (100) is provided with setting device (500), setting device (500) include water tank (510), inlay static die holder (520) of locating in water tank (510), suspend in rotatable movable die holder (530) in water tank (510) top and be used for driving servo motor (540) that movable die holder (530) is rotatory, static die holder (520) are circular arc shell structure and its concave arc face and have seted up a plurality of fixed glue groove (521), and a plurality of fixed glue groove (521) are linked together and its width is the widening gradually by the direction of outer arc face to inner arc face, movable die holder (530) including arrange in advance offset plate (531) and advance offset plate (531) bottom surface welded on one end opening of fixed glue groove (521) and a plurality of offset plate (532) that correspond grafting with a plurality of fixed glue groove (521).

10. The process for preparing polyurethane with antioxidant property according to claim 9, wherein the process comprises the following steps: the water service pipe (512) is arranged above and below the side face of one end of the water tank (510) in a communicated mode, the rotatable rubber guide rollers (511) are arranged on the top face of the water tank (510) and located at two ends of the static die holder (520), and the two ends of the static die holder (520) are welded to the outer side face of the water base (520).