CN112848026A

CN112848026A - Polyurethane foaming machine

Info

Publication number: CN112848026A
Application number: CN202011520284.9A
Authority: CN
Inventors: 吕佳丽; 徐伟文
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-05-28

Abstract

The invention relates to the field of polyurethane foaming, in particular to a polyurethane foaming machine, which comprises a main body, an air injection mechanism, a water inlet mechanism, a driving mechanism, a mixing mechanism, an adjusting mechanism, a heat dissipation mechanism and a connecting mechanism, wherein the air injection mechanism is arranged on the main body; when too much water in the raw materials causes a large amount of CO2 and heat to be released in the reaction, the driving mechanism and the water inlet mechanism are opened, the water inlet mechanism enters the mixing mechanism, the water moves to have the heat on the surface of the mixing mechanism, and meanwhile, the driving mechanism drives the heat dissipation mechanism to rotate, so that the heat dissipation mechanism drives the reacted raw materials to move towards the mixing mechanism, the finished raw pulp is flushed into the reacting raw materials, the reacted raw materials are filled with cracked bubbles and collapsed bubbles generated due to overhigh temperature, and the density of the product is ensured; when water enters the inside of the connecting mechanism, the heat dissipation mechanism rotates rapidly, so that the water inside the connecting mechanism enters the inside of the air injection mechanism rapidly, the air injection mechanism is opened, and gas and heat generated inside the main body are sprayed out from the inside of the air injection mechanism.

Description

Polyurethane foaming machine

Technical Field

The invention relates to the field of polyurethane foaming, in particular to a polyurethane foaming machine.

Background

The polyurethane foaming machine is a special equipment for pouring and foaming polyurethane foam plastics, and is used for preparing the foam plastics by carrying out chemical reaction foaming on polyether polyol and polyisocyanate in the presence of a plurality of chemical assistants such as a foaming agent, a catalyst, an emulsifier and the like.

Water is one of the most important reactions in foams as a blowing agent, and small amounts of water can consume large amounts of TDI and produce large amounts of gas, giving off heat. The reaction speed can be accelerated by increasing the water concentration in the reaction mixture, when the water content in the polyether is excessive, a large amount of TDI is consumed, the activity of the polyether is reduced, and the polyether is cracked and collapsed, meanwhile, the density of a foam product can be reduced due to a large amount of CO2 and heat released in the reaction, if the generated heat cannot be quickly removed, a yellow core or even a fire can be caused in severe cases, and the quality of the product is reduced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a polyurethane foaming machine.

The technical scheme adopted by the invention for solving the technical problems is as follows: a polyurethane foaming machine comprises a main body, an air injection mechanism, a water inlet mechanism, a driving mechanism, a mixing mechanism, an adjusting mechanism, a heat dissipation mechanism and a connecting mechanism, wherein the mixing mechanism for mixing and reacting raw materials is arranged in the main body; the one end installation of hybrid mechanism is used for discharging the inside unnecessary gas of main part jet-propelled mechanism, just hybrid mechanism's internally mounted is used for controlling jet-propelled mechanism switch coupling mechanism, coupling mechanism connects heat dissipation mechanism with jet-propelled mechanism, hybrid mechanism's lateral wall installation is used for detecting the inside temperature of main part adjustment mechanism, just adjustment mechanism electric connection actuating mechanism with mechanism of intaking.

Preferably, the mixing mechanism comprises a material spraying pipe, a fixed rod, a fixed cylinder and a scraper, wherein the material spraying pipe is obliquely and symmetrically arranged at one end of the main body, and the conical fixed cylinder is rotatably connected to the middle part inside the main body; the dead lever of cavity round platform shape is installed to the one end of a fixed cylinder, just the lateral wall equidistance installation lateral wall of a fixed cylinder is curved the scraper blade.

Preferably, actuating mechanism includes motor, pivot and connecting axle and connecting rod, the one end fixed connection cavity of dead lever the pivot, the one end installation of main part the motor, the motor is connected the connecting axle, just the lateral wall edge fixed connection of connecting axle and pivot the connecting rod.

Preferably, the mechanism of intaking includes solenoid valve, inlet tube and fixed cover, the one end installation of main part the inlet tube, the lateral wall installation of inlet tube the solenoid valve, just the bottom installation of inlet tube fixed cover, the inside of fixed cover is rotated and is connected the connecting rod the pivot with the connecting axle, just the both ends of fixed cover block respectively the connecting axle with the pivot.

Preferably, the adjusting mechanism comprises a storage rod, a metal rod, a fixing ball, a second spring and a metal plate, the storage rod is obliquely installed on the side wall of the fixing cylinder, the top end of the storage rod is connected with the fixing ball in a sliding mode, the metal rod is installed at one end of the fixing ball, the second spring is sleeved on the side wall of the metal rod, and the top end of the second spring is connected with the inner side wall of the storage rod; the top internally mounted of storing the pole the metal sheet, the metal sheet is contradicted the metal pole, just the metal sheet with metal pole electric connection respectively the solenoid valve with the motor.

Preferably, the air injection mechanism comprises an air injection pipe, a fixed block, a sealing plug, a piston, a first spring, a support rod, a floating ball and a mounting pipe, one end of the fixed cylinder is rotatably connected with the hollow fixed block, and the air injection pipe is mounted on the fixed block and the side wall of the main body; the gas injection pipe is vertically connected with the mounting pipe, and the interior of the mounting pipe is slidably connected with the piston and the sealing plug; the piston is connected with the side wall of the gas ejector pipe in a sliding manner, the piston and the middle part of the inside of the sealing plug are fixedly connected with the supporting rod, and the bottom end of the supporting rod is fixedly connected with the floating ball; the top end of the installation pipe is provided with the first spring, and the bottom end of the first spring is connected with the top surface of the piston.

Preferably, the connecting mechanism comprises a supporting rod, a connecting sleeve, a limiting rod and a fixing ring, the bottom end of the mounting tube is fixedly connected with the fixing ring, one end of the fixing ring is clamped and rotatably connected with the connecting sleeve, and the supporting rod is symmetrically mounted between the connecting sleeve and the fixing ring; the inner part of the fixing ring is rotatably connected with the limiting rod, and the side wall of the fixing ring is arc-shaped.

Preferably, the heat dissipation mechanism comprises fan blades, a rotating rod and a water drainage pipe, one end of the rotating rod is clamped and rotatably connected with the inside of the fixing ring, and the fan blades are symmetrically arranged on the side wall of the rotating rod; one end of the rotating rod is rotatably connected with the drain pipe, and the drain pipe is connected with the side wall of the main body.

The invention has the beneficial effects that:

(1) according to the polyurethane foaming machine, when a large amount of CO2 and heat are released in the reaction due to too much moisture in the raw materials, the adjusting mechanism opens the driving mechanism and the water inlet mechanism, the water inlet mechanism enters the mixing mechanism, the raw materials react on the side wall of the mixing mechanism, water moves to have the heat on the surface of the mixing mechanism, meanwhile, the driving mechanism drives the heat dissipation mechanism to rotate, the reacted raw materials are driven by the heat dissipation mechanism to move towards the mixing mechanism, the finished raw stock is flushed into the reacting raw materials to take away the heat, and the reacted raw materials are filled with cracked bubbles and collapsed bubbles generated due to too high temperature, so that the density of the product is ensured.

(2) According to the polyurethane foaming machine, when water enters the connecting mechanism, the heat dissipation mechanism rotates rapidly, so that the water in the connecting mechanism enters the air injection mechanism rapidly, the air injection mechanism moves to open the air injection mechanism, gas and heat generated in the main body are injected from the inside of the air injection mechanism, and the temperature in the main body is prevented from being too high.

(3) According to the polyurethane foaming machine, in the using process, raw materials are directly sprayed to the side wall of the mixing mechanism, the raw materials are pushed to rotate by the mixing mechanism, the raw materials are stirred by the mixing mechanism and are uniformly contacted with each other to be rapidly reacted and foamed, the main body is in the shape of a circular truncated cone, the volume of the raw materials is continuously increased along with the foaming of the raw materials, the reacted raw materials are pushed to move in the main body, and meanwhile, the heat dissipation mechanism blocks the movement of the raw materials, so that the reaction time of the raw materials is prolonged, and the raw materials are uniformly foamed.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a preferred embodiment of a polyurethane foaming machine according to the present invention;

FIG. 2 is a schematic view of the internal structure of the main body shown in FIG. 1;

FIG. 3 is a schematic view of the internal structure of the fixed cylinder shown in FIG. 2;

fig. 4 is a schematic view of the internal structure of the pouch shown in fig. 2;

FIG. 5 is a schematic view of the internal structure of the fixing block shown in FIG. 2;

fig. 6 is a schematic view of the internal structure of the adjusting mechanism shown in fig. 2.

In the figure: 1. the device comprises a main body, 2, an air injection mechanism, 21, an air injection pipe, 22, a fixing block, 23, a sealing plug, 24, a piston, 25, a first spring, 26, a support rod, 27, a floating ball, 28, an installation pipe, 3, a water inlet mechanism, 31, an electromagnetic valve, 32, a water inlet pipe, 33, a fixing sleeve, 4, a driving mechanism, 41, a motor, 42, a rotating shaft, 43, a connecting shaft, 44, a connecting rod, 5, a mixing mechanism, 51, an air injection pipe, 52, a fixing rod, 53, a fixing cylinder, 54, a scraping plate, 6, an adjusting mechanism, 61, a storage rod, 62, a metal rod, 63, a fixing ball, 64, a second spring, 65, a metal plate, 7, a heat dissipation mechanism, 71, fan blades, 72, a rotating rod, 73, a water outlet pipe, 8, a connecting mechanism, 81, a support rod, 82, a connecting sleeve.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the polyurethane foaming machine of the present invention comprises a main body 1, an air injection mechanism 2, a water inlet mechanism 3, a driving mechanism 4, a mixing mechanism 5, an adjusting mechanism 6, a heat dissipation mechanism 7 and a connecting mechanism 8, wherein the mixing mechanism 5 for mixing and reacting raw materials is installed inside the main body 1, one end of the mixing mechanism 5 is rotatably connected to the water inlet mechanism 3 for rapidly taking away heat inside the main body 1, one end of the water inlet mechanism 3 is installed with the driving mechanism 4 for driving the heat dissipation mechanism 7 to rotate, and one end of the driving mechanism 4 is rotatably connected to the inside of the water inlet mechanism 3; the one end installation of hybrid mechanism 5 is used for discharging 1 inside unnecessary gas of main part jet mechanism 2, just the internally mounted of hybrid mechanism 5 is used for control jet mechanism 2 switch coupling mechanism 8, coupling mechanism 8 is connected heat dissipation mechanism 7 with jet mechanism 2, the lateral wall installation of hybrid mechanism 5 is used for detecting 1 inside temperature of main part adjustment mechanism 6, just 6 electric connection of adjustment mechanism drive mechanism 4 with mechanism 3 intakes.

Specifically, the mixing mechanism 5 comprises a material spraying pipe 51, a fixing rod 52, a fixing cylinder 53 and a scraper 54, wherein the material spraying pipe 51 is obliquely and symmetrically installed at one end of the main body 1, and the conical fixing cylinder 53 is rotatably connected to the center of the inside of the main body 1; the fixing rod 52 is in a circular truncated cone shape, the fixing rod 52 is installed at one end of the fixing cylinder 53, the scraping plates 54 with arc-shaped side walls are installed on the side walls of the fixing cylinder 53 at equal intervals, in order to facilitate polyurethane white materials, namely, combined polyether is obliquely and downwards sprayed to the top end of the fixing cylinder 53 and the surfaces of the scraping plates 54 through one material spraying pipe 51, polyurethane black materials, namely, polymeric MDI is obliquely and upwards sprayed to the top end of the fixing cylinder 53 and the side walls of the scraping plates 54 through the other material spraying pipe 51, the fixing rod 52 is in a circular truncated cone shape, the movement of raw materials is prevented from being blocked by the fixing rod 52, the raw materials are collided and scattered on the side walls of the fixing cylinder 53, the combined polyether and the polymeric MDI are mixed with each other, the combined polyether and the polymeric MDI push the fixing cylinder 53 and the scraping plates 54 to rotate, the scraping plates 54 drive the combined polyether or the polymeric MDI to move up and down, the raw material is moved inside the main body 1.

Specifically, actuating mechanism 4 includes motor 41, pivot 42 and connecting axle 43 and connecting rod 44, the one end fixed connection cavity of dead lever 52 pivot 42, the one end installation of main part 1 motor 41, motor 41 connects connecting axle 43, just connecting axle 43 and pivot 42's lateral wall edge fixed connection connecting rod 44, for the convenience motor 41 drives connecting axle 43 rotates, connecting axle 43 drives connecting rod 44 with pivot 42 rotates, connecting rod 44 will connecting axle 43 with pivot 42 separates, makes things convenient for water to get into pivot 42's inside.

Specifically, the water inlet mechanism 3 comprises an electromagnetic valve 31, a water inlet pipe 32 and a fixing sleeve 33, the water inlet pipe 32 is installed at one end of the main body 1, the electromagnetic valve 31 is installed on the side wall of the water inlet pipe 32, the fixed sleeve 33 is arranged at the bottom end of the water inlet pipe 32, the connecting rod 44, the rotating shaft 42 and the connecting shaft 43 are rotatably connected inside the fixed sleeve 33, and both ends of the fixing sleeve 33 are respectively engaged with the connecting shaft 43 and the rotating shaft 42, in order to facilitate the opening of the solenoid valve 31, water is made to enter the fixing sleeve 33 through the inlet pipe 32, when the connecting shaft 43 and the rotating shaft 42 rotate in the fixed sleeve 33, water is made to enter the inside of the connecting shaft 43 in the fixed sleeve 33, and the two ends of the fixed sleeve 33 are respectively clamped with the connecting shaft 43 and the rotating shaft 42, so that water is prevented from leaking from the connecting part of the fixed sleeve 33 and the connecting shaft 43 and the rotating shaft 42.

Specifically, the adjusting mechanism 6 includes a storage rod 61, a metal rod 62, a fixing ball 63, a second spring 64 and a metal plate 65, the storage rod 61 is obliquely installed on the side wall of the fixing cylinder 53, the top end of the storage rod 61 is slidably connected with the fixing ball 63, the metal rod 62 is installed at one end of the fixing ball 63, the second spring 64 is sleeved on the side wall of the metal rod 62, and the top end of the second spring 64 is connected with the inner side wall of the storage rod 61; the top internally mounted of storing pole 61 metal sheet 65, metal sheet 65 contradicts metal sheet 62, just metal sheet 65 with metal sheet 62 electric connection respectively solenoid valve 31 with motor 41, when the inside high temperature of main part 1, mercury is stored store the inside of storing pole 61, make mercury be in store the inside inflation of pole 61, make mercury with the contact of fixed ball 63 makes mercury promote fixed ball 63 is in upward movement in storing pole 61, fixed ball 63 promotes metal sheet 62 upward movement compresses second spring 64 makes metal sheet 62 contradict metal sheet 65 makes motor 41 with solenoid valve 31 switch on, open motor 41 with solenoid valve 31.

Specifically, the gas injection mechanism 2 comprises a gas injection pipe 21, a fixed block 22, a sealing plug 23, a piston 24, a first spring 25, a support rod 26, a floating ball 27 and a mounting pipe 28, one end of the fixed cylinder 53 is rotatably connected with the hollow fixed block 22, and the fixed block 22 and the side wall of the main body 1 are provided with the gas injection pipe 21; the gas injection pipe 21 is vertically connected with the mounting pipe 28, and the inside of the mounting pipe 28 is slidably connected with the piston 24 and the sealing plug 23; the piston 24 is slidably connected with the side wall of the gas ejector pipe 21, the piston 24 and the center of the inside of the sealing plug 23 are fixedly connected with the support rod 26, and the bottom end of the support rod 26 is fixedly connected with the floating ball 27; the top end of the mounting tube 28 is mounted with the first spring 25, the bottom end of the first spring 25 is connected with the top surface of the piston 24, in order to facilitate the water to push the floating ball 27 to move upwards, the floating ball 27 drives the support rod 26, the sealing plug 23 and the piston 24 to move upwards in the mounting tube 28 to compress the first spring 25, the side wall of the mounting tube 28 is provided with a through hole, the piston 24 blocks the through hole, the piston 24 is separated from the through hole and the gas ejector tube 21 along with the upward movement of the piston 24, at the moment, the sealing plug 23 is clamped in the mounting tube 28, so that water is prevented from entering the through hole in the side wall of the mounting tube 28 and the gas ejector tube 21, the gas injection pipe 21 is communicated with the inside of the main body 1, so that redundant gas and heat in the main body 1 are avoided, and excessive gas and heat in the main body 1 are avoided.

Specifically, the connecting mechanism 8 includes a supporting rod 81, a connecting sleeve 82, a limiting rod 83 and a fixing ring 84, the bottom end of the mounting tube 28 is fixedly connected with the fixing ring 84, one end of the fixing ring 84 is clamped and rotatably connected with the connecting sleeve 82, and the supporting rod 81 is symmetrically mounted between the connecting sleeve 82 and the fixing rod 52; the inside of solid fixed ring 84 is rotated and is connected gag lever post 83, the lateral wall is curved gag lever post 83 fixed connection the one end of adapter sleeve 82, for the convenience water gets into the adapter sleeve 82 with the inside of solid fixed ring 84, dead lever 52 drives the bracing piece 81 the adapter sleeve 82 with gag lever post 83 rotates, and the lateral wall is curved gag lever post 83 is in solid fixed ring 84's inside is rotated, gag lever post 83 extrudees gu fixed ring 84's inside water makes water towards gu fixed ring 84's edge motion makes water quick with the floater 27 contact makes water extrusion floater 27, makes floater 27 get into the inside of installation tube 28 is opened jet-propelled pipe 21.

Specifically, the heat dissipation mechanism 7 includes fan blades 71, a rotating rod 72 and a water drainage pipe 73, one end of the rotating rod 72 is clamped and rotatably connected to the inside of the fixed ring 84, and the fan blades 71 are symmetrically mounted on the side wall of the rotating rod 72; one end of the rotating rod 72 is rotatably connected with the drain pipe 73, the drain pipe 73 is connected with the side wall of the main body 1, in order to facilitate the limiting rod 83 to drive the rotating rod 72 to rotate, water enters the rotating rod 72 to take away heat inside the main body 1, the rotating shaft 72 drives the fan blades 71 to rotate, so that the fan blades 71 push a reacted raw material inside the main body 1 to move in the reverse direction towards the fixed cylinder 53, the finished primary pulp is flushed into the reacted raw material to take away heat, the reacted raw material is filled with cracked bubbles and collapsed bubbles generated due to overhigh temperature, and the density of the product is ensured.

When the device is used, a power supply is added, the water inlet pipe 32 is connected with a water source, polyurethane white material, namely composite polyether, is obliquely and downwards sprayed to the top end of the fixed cylinder 53 and the surface of the scraper 54 through one of the material spraying pipes 51, polyurethane black material, namely polymeric MDI, is obliquely and upwards sprayed to the top end of the fixed cylinder 53 and the side wall of the scraper 54 through the other material spraying pipe 51, the fixed rod 52 is in a circular table shape, the movement of the raw material is prevented from being blocked by the fixed rod 52, the raw material is enabled to collide with the side wall of the fixed cylinder 53 to be scattered, the composite polyether and the polymeric MDI are enabled to be mixed with each other, the composite polyether and the polymeric MDI push the fixed cylinder 53 and the scraper 54 to rotate, the scraper 54 drives the composite polyether or the polymeric MDI to move up and down, the composite polyether and the polymeric MDI are enabled to be uniformly and rapidly mixed for reaction and foaming, and the, the reacted raw material is ejected from one end of the main body 1. When the water in the raw material is too large, which causes the temperature in the main body 1 to rapidly rise and a large amount of carbon dioxide is generated, the mercury stored in the storage rod 61 expands, the mercury contacts the fixed ball 63, the mercury pushes the fixed ball 63 to move upward in the storage rod 61, the fixed ball 63 pushes the metal rod 62 to move upward and compress the second spring 64, the metal rod 62 abuts against the metal plate 65, and thus the motor 41 and the solenoid valve 31 are powered on, and the motor 41 and the solenoid valve 31 are opened. The power 41 runs, the motor 41 drives the connecting shaft 43 to rotate, the connecting shaft 43 drives the connecting rod 44 and the rotating shaft 42 to rotate, the connecting rod 44 separates the connecting shaft 43 from the rotating shaft 42, the claw 42 drives the fixing rod 52, the supporting rod 81, the connecting sleeve 82, the limiting rod 83 and the rotating rod 72 to rotate. The solenoid valve 31 is opened, makes water pass through the inlet tube 32 gets into fixed cover 33, works as the connecting axle 43 with the pivot 42 is in when rotating in fixed cover 33, makes water be in get into in the fixed cover 33 the inside of connecting axle 43, water gets into in proper order the dead lever 52 fixed cylinder 52 the adapter sleeve 82 fixed ring 84 with the inside of bull stick 72, the raw materials are in the lateral wall reaction of fixed cylinder 53, just fixed cylinder 53 rotates, makes water absorb fast the temperature of fixed cylinder 53 lateral wall, reduces the inside temperature of main part 1. The limiting rod 83 with an arc-shaped side wall rotates inside the fixing ring 84, the limiting rod 83 presses the water inside the fixing ring 84, the water moves towards the edge of the fixing ring 84, the water is rapidly contacted with the floating ball 27, the water presses the floating ball 27, the floating ball 27 enters the mounting tube 28, the floating ball 27 drives the support rod 26, the sealing plug 23 and the piston 24 to move upwards inside the mounting tube 28 to compress the first spring 25, the side wall of the mounting tube 28 is provided with a through hole, the piston 24 blocks the through hole, the piston 24 is separated from the through hole and the gas ejector tube 21 along with the upward movement of the piston 24, the sealing plug 23 is clamped inside the mounting tube 28 at this time, the water is prevented from entering the through hole on the side wall of the mounting tube 28 and the gas ejector tube 21, and the gas ejector tube 21 is communicated with the inside of the main body 1, excessive gas and heat in the main body 1 are avoided; at this time, the rotating shaft 72 drives the fan blades 71 to rotate, so that the fan blades 71 push a reacted raw material in the main body 1 to move in the reverse direction towards the fixed cylinder 53, the finished raw stock is flushed into the reacted raw material, heat is taken away, the reacted raw material is filled with cracked bubbles and collapsed bubbles generated due to overhigh temperature, and the density of the product is ensured. When the temperature in the main body 1 is reduced, the mercury shrinks, the second spring 64 extends to push the metal rod 62 to separate from the metal plate 65, the motor 41 and the electromagnetic valve 31 are closed, the first spring 25 extends to push the piston 24, the sealing plug 23, the support rod 26 and the floating ball 27 to move downwards, and the gas ejector 21 is closed.

The foregoing illustrates and describes the principles, general features, and advantages of the present 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 embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A polyurethane foaming machine is characterized in that: the device comprises a main body (1), an air injection mechanism (2), a water inlet mechanism (3), a driving mechanism (4), a mixing mechanism (5), an adjusting mechanism (6), a heat dissipation mechanism (7) and a connecting mechanism (8), wherein the mixing mechanism (5) for raw material mixing reaction is installed inside the main body (1), one end of the mixing mechanism (5) is rotatably connected with the water inlet mechanism (3) for quickly taking away heat inside the main body (1), one end of the water inlet mechanism (3) is installed with the driving mechanism (4) for driving the heat dissipation mechanism (7) to rotate, and one end of the driving mechanism (4) is rotatably connected with the inside of the water inlet mechanism (3); the one end installation of hybrid mechanism (5) is used for discharging main part (1) inside unnecessary gas jet mechanism (2), just the internally mounted of hybrid mechanism (5) is used for controlling jet mechanism (2) switch coupling mechanism (8), coupling mechanism (8) are connected heat dissipation mechanism (7) with jet mechanism (2), the lateral wall installation of hybrid mechanism (5) is used for detecting main part (1) inside temperature adjustment mechanism (6), just adjustment mechanism (6) electric connection actuating mechanism (4) with mechanism (3) intakes.

2. A polyurethane foam maker as set forth in claim 1, wherein: the mixing mechanism (5) comprises a material spraying pipe (51), a fixing rod (52), a fixing barrel (53) and a scraper (54), wherein the material spraying pipe (51) is obliquely and symmetrically installed at one end of the main body (1), and the conical fixing barrel (53) is rotatably connected to the middle part inside the main body (1); the fixing rod (52) is in a hollow circular truncated cone shape and is installed at one end of the fixing cylinder (53), and the scraper (54) is arc-shaped and is installed on the side wall of the fixing cylinder (53) at equal intervals.

3. A polyurethane foam maker as set forth in claim 2, wherein: actuating mechanism (4) include motor (41), pivot (42) and connecting axle (43) and connecting rod (44), the one end fixed connection cavity of dead lever (52) pivot (42), the one end installation of main part (1) motor (41), motor (41) are connected connecting axle (43), just connecting axle (43) and the lateral wall edge fixed connection of pivot (42) connecting rod (44).

4. A polyurethane foam maker as set forth in claim 3, wherein: intake mechanism (3) include solenoid valve (31), inlet tube (32) and fixed cover (33), the one end installation of main part (1) inlet tube (32), the lateral wall installation of inlet tube (32) solenoid valve (31), just the bottom installation of inlet tube (32) fixed cover (33), the inside of fixed cover (33) is rotated and is connected connecting rod (44) pivot (42) with connecting axle (43), just the both ends of fixed cover (33) block respectively connecting axle (43) with pivot (42).

5. A polyurethane foam maker as set forth in claim 4, wherein: the adjusting mechanism (6) comprises a storage rod (61), a metal rod (62), a fixed ball (63), a second spring (64) and a metal plate (65), the storage rod (61) is obliquely installed on the side wall of the fixed cylinder (53), the top end of the storage rod (61) is connected with the fixed ball (63) in a sliding mode, the metal rod (62) is installed at one end of the fixed ball (63), the second spring (64) is sleeved on the side wall of the metal rod (62), and the top end of the second spring (64) is connected with the inner side wall of the storage rod (61); the top end internally mounted of storing pole (61) metal sheet (65), metal sheet (65) are contradicted metal pole (62), just metal sheet (65) with metal pole (62) electric connection respectively solenoid valve (31) with motor (41).

6. A polyurethane foam maker as set forth in claim 2, wherein: the air injection mechanism (2) comprises an air injection pipe (21), a fixing block (22), a sealing plug (23), a piston (24), a first spring (25), a supporting rod (26), a floating ball (27) and a mounting pipe (28), one end of the fixing cylinder (53) is rotatably connected with the hollow fixing block (22), and the air injection pipe (21) is mounted on the fixing block (22) and the side wall of the main body (1); the gas injection pipe (21) is vertically connected with the mounting pipe (28), and the inside of the mounting pipe (28) is slidably connected with the piston (24) and the sealing plug (23); the piston (24) is connected with the side wall of the gas injection pipe (21) in a sliding manner, the piston (24) and the center of the inner part of the sealing plug (23) are fixedly connected with the supporting rod (26), and the bottom end of the supporting rod (26) is fixedly connected with the floating ball (27); the top end of the mounting tube (28) is provided with the first spring (25), and the bottom end of the first spring (25) is connected with the top surface of the piston (24).

7. A polyurethane foam maker as set forth in claim 6, wherein: the connecting mechanism (8) comprises a supporting rod (81), a connecting sleeve (82), a limiting rod (83) and a fixing ring (84), the bottom end of the mounting pipe (28) is fixedly connected with the fixing ring (84), one end of the fixing ring (84) is clamped and rotatably connected with the connecting sleeve (82), and the supporting rod (81) is symmetrically mounted between the connecting sleeve (82) and the fixing rod (52); the inner part of the fixing ring (84) is rotatably connected with the limiting rod (83), the side wall is arc-shaped, and the limiting rod (83) is fixedly connected with one end of the connecting sleeve (82).

8. A polyurethane foam maker as set forth in claim 7, wherein: the heat dissipation mechanism (7) comprises fan blades (71), a rotating rod (72) and a drain pipe (73), one end of the rotating rod (72) is clamped and rotationally connected with the inside of the fixed ring (84), and the fan blades (71) are symmetrically arranged on the side wall of the rotating rod (72); one end of the rotating rod (72) is rotatably connected with the drain pipe (73), and the drain pipe (73) is connected with the side wall of the main body (1).