CN214214528U - Multifunctional high-pressure polyurethane mixing head device - Google Patents
Multifunctional high-pressure polyurethane mixing head device Download PDFInfo
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- CN214214528U CN214214528U CN202023299335.8U CN202023299335U CN214214528U CN 214214528 U CN214214528 U CN 214214528U CN 202023299335 U CN202023299335 U CN 202023299335U CN 214214528 U CN214214528 U CN 214214528U
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Abstract
The utility model provides a multifunctional high-pressure polyurethane mixing head device; the side wall of the main mixing seat is provided with a main feeding through hole, and the main mixing seat is also internally provided with a feeding hole and a discharging hole; a cavity is arranged in a valve shell of the material pressure regulating valve, a valve core and a pressure spring are arranged in the valve shell, and an atomization nozzle is formed between the valve core and a valve body outlet of the valve shell; a spraying control piston rod of the spraying control assembly extends into the main feeding through hole; the side wall of the main mixing seat is provided with a main air inlet through hole, and an air inlet is also arranged in the main mixing seat; an air injection control piston rod of the cleaning control assembly extends into the main air inlet through hole; the tail end of the material conveying pipe extends into an inner hole of the main mixing seat; the auxiliary mixing seat is fixedly connected to the lower side of the main mixing seat, a buffer chamber is further formed in the auxiliary mixing seat, the auxiliary mixing seat is provided with an inlet, and the inner wall of the auxiliary mixing seat is provided with a mixing port. Through the cooperation of the material pressure regulating valve and the spraying control assembly, the accurate control of the spraying amount of the polyurethane raw material is realized, and the polyurethane spraying control assembly is suitable for mixing polyurethane and solid materials and is suitable for industrial application.
Description
Technical Field
The utility model relates to a multi-functional high-pressure mixing head device of polyurethane.
Background
Polyurethane waste regeneration technique is through processing into powder or granule through the polyurethane waste and accomplish regeneration operation, need accomplish through the compounding device and process into powder or granule to its material and carry, spraying work, avoids processing the degradation of performance of subassembly to the material, but the compounding device who is used for mixing polyurethane and solid-state material at present, its structure is complicated, the compounding homogeneity is poor, compounding is efficient, be unsuitable in the industrialization and use.
A Chinese patent 'mixing core, mixing device for mixing polyurethane and solid materials by using the mixing core' with application number 201811290823.7 discloses a mixing device, which comprises a spray gun part for spraying polyurethane and horizontally arranging, a blanking component for dropping the solid materials and vertically arranging, a mixing core, a mixing sleeve vertically arranged and a mixing chamber; the blanking assembly comprises a shell, a motor, a driving wheel, a first driven wheel, a second driven wheel, a blanking barrel and a cover barrel; the other blanking component comprises a motor, a metering roller, a brush and a hopper for powder materials to pass through. However, when the mixing device mixes filiform materials (such as glass fiber) and powdery materials (such as gypsum powder), polyurethane cannot be atomized sufficiently, the mixing effect is poor, the feeding mode of polyurethane is direct, the pressure of the polyurethane raw material cannot be controlled accurately, and the mixing part of the polyurethane raw material and other raw materials is uniform.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a multi-functional high-pressure mixing head device of polyurethane that rational in infrastructure, mix effectually is provided.
In order to solve the technical problem, the utility model provides a multifunctional high-pressure polyurethane mixing head device;
the device comprises a material conveying pipe, a main mixing seat, an auxiliary mixing seat, a material spraying control assembly, a cleaning control assembly and at least one material pressure regulating valve;
the main mixing seat is also provided with an inner hole penetrating through the upper end surface and the lower end surface of the main mixing seat, the bottom of the inner hole of the main mixing seat is provided with an outlet, the side wall of the main mixing seat is provided with a main feeding through hole, the main feeding through hole extends to the inner wall of the main mixing seat, the main mixing seat is also internally provided with at least one group of material holes, the at least one group of material holes are in one-to-one correspondence with at least one material pressure regulating valve, each group of material holes comprises an independent feeding hole and a discharge hole, and the tail end of the feeding hole and the initial end of the discharge hole are sequentially communicated with the main feeding through hole;
the material pressure regulating valve is arranged in the middle of the feeding hole, polyurethane raw materials entering the feeding hole pass through the material pressure regulating valve and then enter the main feeding through hole from the tail end of the feeding hole, the material pressure regulating valve comprises a valve shell, a valve core and a pressure spring, a cavity is arranged in the valve shell, a valve body inlet communicated with the start end of the corresponding feeding hole is formed in the side wall of the valve shell, a valve body outlet communicated with the tail end of the feeding hole is formed in the end part of the valve shell, the valve core and the pressure spring are arranged in the valve shell, one end of the pressure spring abuts against the valve core, the other end of the pressure spring abuts against the inner wall of the cavity of the valve shell, the end part of the valve core aligns with the valve body outlet of the valve shell, and an atomization nozzle for the polyurethane raw materials is formed between the end part of the valve core and the valve body outlet of the valve shell;
the material spraying control assembly at least comprises a material spraying control piston rod, the material spraying control piston rod extends into the main feeding through hole, the material spraying control piston rod and the main feeding through hole are kept sealed, and the moving tracks of the material spraying control piston rod respectively pass through the connecting positions of the discharge hole and the feeding hole and the main feeding through hole;
the side wall of the main mixing seat is provided with a main air inlet through hole, the main air inlet through hole extends to the inner wall of the main mixing seat, an air inlet hole is also arranged in the main mixing seat, one end of the air inlet hole is communicated with an external high-pressure air source, and the other end of the air inlet hole is communicated with the main air inlet through hole;
the cleaning control assembly at least comprises an air injection control piston rod, the air injection control piston rod extends into the main air inlet through hole, the air injection control piston rod and the main air inlet through hole are kept sealed, and the moving track of the air injection control piston rod passes through the end part of the air inlet hole;
the tail end of the material conveying pipe extends into an inner hole of the main mixing seat;
the auxiliary mixing seat is also provided with an inner hole communicated with the inner hole of the main mixing seat, the auxiliary mixing seat is fixedly connected to the lower side of the main mixing seat, the auxiliary mixing seat is also internally provided with a buffer chamber, the side wall of the auxiliary mixing seat is provided with an inlet communicated with the buffer chamber, and the inner wall of the auxiliary mixing seat is provided with a mixing port communicated with the buffer chamber.
After the structure is adopted, high-pressure polyurethane raw materials reach the material pressure regulating valve through the feeding hole, enter from the valve body inlet, are discharged from the atomizing nozzle between the end part of the valve core and the valve body outlet of the valve shell, enter into the annular groove of the mixing core and are secondarily mixed with air, finally enter into the inner hole of the main mixing seat through the guide through hole to be impregnated with filiform materials, the inlet of the auxiliary mixing seat is communicated with high-pressure air or powdery materials, and the high-pressure air or powdery materials and the high-pressure polyurethane raw materials flow out.
In addition, the material pressure regulating valve replaces the existing pressure regulating valve which is of a threaded structure and can only manually regulate pressure, and the material pressure is ultrahigh and the machine is shut down when the spout of the material is dirty, so that defective products of products are increased. After the material pressure regulating valve is additionally provided with the spring, the working pressure is manually regulated, and then the material pressure is automatically regulated by utilizing the self thrust of the spring, so that the rate of qualified products is ensured.
The multifunctional high-pressure polyurethane mixing head device has the beneficial technical effects that: it is rational in infrastructure, through the material pressure governing valve with spout the cooperation of material control module, can realize the accurate control of polyurethane raw materials atomizing injection volume, be suitable for mixed polyurethane and solid-state material, its compounding is even, the compounding is efficient, be suitable for the industrialization and use.
In order to understand the technical content of the present invention more clearly, the present multifunctional high-pressure polyurethane mixing head device is referred to as the present mixing head device hereinafter.
The material spraying control piston rod of the mixing head device is provided with at least one circulation groove, and the at least one circulation groove and at least one group of material holes are in one-to-one correspondence;
when the material spraying control piston rod is in the maximum stroke, the circulating groove is communicated with the tail end port of the corresponding feeding hole and the start port of the corresponding discharging hole;
when the material spraying control piston rod is in the minimum stroke, the circulating groove is only communicated with the initial port of the corresponding discharging hole.
When the material spraying control piston rod closes a passage between the feed hole and the main feed through hole, high-pressure polyurethane raw materials entering from the feed hole return through the circulating groove and the discharge hole, and after the structure is adopted, a high-pressure polyurethane raw material source, the feed hole, the circulating groove, the discharge hole and an external pipeline form circulation, so that the pressure of the polyurethane raw materials is easily kept.
The mixing head device further comprises a mixing core, the mixing core is fixedly connected to the tail end of the conveying pipe and is located in an inner hole of the main mixing seat, the mixing core is also provided with inner holes penetrating through the upper end face and the lower end face of the mixing core, the inner hole of the mixing core is communicated with the conveying pipe, a lower port of the inner hole of the mixing core is a jet orifice, an annular groove is formed in the outer wall of the mixing core, a plurality of guide through holes are formed in the lower portion of the mixing core, one end of each guide through hole is communicated with the lower edge of the annular groove, and the other end of each guide through hole is communicated with the jet orifice of the mixing core.
The annular groove of the mixing core of the mixing head device comprises an upper groove wall, an inner groove wall and a lower groove wall, wherein the inner groove wall is in a vertical state, the upper groove wall is in a horizontal state, the lower groove wall is in an inclined state, and an included angle between the lower groove wall and the inner groove wall is an obtuse angle; after adopting such structure, the inslot wall is vertical state and makes the polyurethane raw materials after the atomizing blockked by the inslot wall of ring channel after main feeding through-hole blowout, and polyurethane raw materials takes place the secondary with the air in the ring channel and mixes, and is perpendicular between the inslot wall of ring channel and the last cell wall in addition, also can avoid polyurethane raw materials to pile up, makes things convenient for follow-up washing.
The material spraying control assembly of the mixing head device further comprises a material spraying oil cylinder, a cylinder body of the material spraying oil cylinder is fixedly connected to the side wall of the main mixing seat, and a material spraying control piston rod is installed on the material spraying oil cylinder.
The cleaning control assembly of the mixing head device further comprises a cleaning oil cylinder, a cylinder body of the cleaning oil cylinder is fixedly connected to the side wall of the main mixing seat, and an air injection control piston rod is installed on the cleaning oil cylinder.
The cleaning oil cylinder pushes and pulls the air injection control piston rod to control the cleaning gun, feed liquid in the annular groove of the mixing core in the prior art is cleaned in the wastewater recovery groove to cause filter screen blockage, so that the ionic water is not beneficial to cyclic utilization and waste is caused, and the annular groove is long in cleaning time and not clean. After the cleaning control assembly is added, the purging function is realized, redundant feed liquid is completely blown into the die through high-pressure air after discharging is completed to form a product, the cleaning time is obviously reduced, the annular groove is cleaned more cleanly, and the wiping and drying time is saved.
This mixing head device still includes telescopic cylinder, and telescopic cylinder fixes at the main seat upside that mixes, is equipped with the cavity in the telescopic cylinder, and the conveying pipeline that is in the main seat outside that mixes runs through telescopic cylinder, and the conveying pipeline outer wall fixedly connected with piston in telescopic cylinder cavity is separated telescopic cylinder cavity for two independent oil pockets, and telescopic cylinder opens respectively with the oilhole of two independent oil pockets.
After adopting such structure, the conveying pipeline passes through the piston and cooperates with telescopic cylinder, can realize reciprocating of conveying pipeline through the oil pressure regulation, and the conveying pipeline moves down the downside of supplementary material mixing seat under the oil pressure effect, can conveniently wash the maintenance to conveying pipeline lower extreme or mix the core.
Drawings
Fig. 1 is a perspective view of a first embodiment of the mixing head apparatus.
FIG. 2 is a perspective view of the mixing head of the embodiment in a use state.
Fig. 3 is a cross-sectional view of a front view of an embodiment of the mixing head apparatus.
Fig. 4 is an enlarged view of a portion a of fig. 3.
Fig. 5 is a sectional view taken along line B-B of fig. 3.
Fig. 6 is an enlarged view of a portion C of fig. 5.
FIG. 7 is a cross-sectional view of a top view of a main mixing block of an embodiment of the present mixing head apparatus.
FIG. 8 is a perspective view of a material pressure regulating valve according to an embodiment of the mixing head apparatus.
FIG. 9 is a cross-sectional view of a material pressure regulating valve according to an embodiment of the mixing head apparatus.
Fig. 10 is a cross-sectional view of a front view of a mixing core of an embodiment of the mixing head apparatus.
Detailed Description
Example one
As shown in fig. 1 to 10
The mixing head device comprises a material conveying pipe 5, a main mixing seat 1, an auxiliary mixing seat 7, a material spraying control assembly, a cleaning control assembly, two material pressure regulating valves 2, a mixing core 8 and a telescopic cylinder barrel 6.
The main mixing seat 1 is also provided with an inner hole penetrating through the upper end surface and the lower end surface of the main mixing seat, the bottom of the inner hole of the main mixing seat 1 is provided with an outlet, the side wall of the main mixing seat 1 is provided with a horizontal main feeding through hole 1b, the main feeding through hole 1b extends to the inner wall of the main mixing seat 1, the main mixing seat 1 is also internally provided with two groups of material holes, the two groups of material holes are in one-to-one correspondence with two material pressure regulating valves 2, the two groups of material holes are horizontally distributed at two sides of the main feeding through hole 1b, each group of material holes comprises an independent feeding hole 1c and a discharge hole 1d, the tail end of the feeding hole 1c and the tail end of the discharge hole 1d are sequentially communicated with the main feeding through hole 1b, the starting end of the feeding hole 1c and the tail end of the discharge hole 1d extend to the side wall of the main mixing seat 1, the side wall of the main mixing seat 1 is also connected with two material conveying joints 1e, the two material joints 1e are in one-to, the discharge hole 1d is also communicated with an external polyurethane raw material conveying pipeline through a corresponding material conveying joint 1 e.
The side wall of the main mixing seat 1 is also provided with two assembling notches 1f which are matched with the external outline of the material pressure regulating valve 2, the material pressure regulating valve 2 arranged in the assembling notches 1f is positioned in the middle of the material inlet 1c, and the polyurethane raw material entering the material inlet 1c passes through the material pressure regulating valve 2 and then enters the main material inlet through hole 1b from the tail end of the material inlet 1 c;
the material pressure regulating valve 2 comprises a front valve shell 2a, a rear valve shell 2b, a valve core 2c and a pressure spring 2d, wherein the front valve shell 2a and the rear valve shell 2b are matched through threads to jointly form the valve shell, a cavity is arranged in the valve shell, the side wall of the front valve shell 2a is provided with a valve body inlet 2a1 corresponding to the beginning end of a feed hole 1c, the end part of the front valve shell 2a is provided with a valve body outlet communicated with the tail end of the feed hole 1c, the valve core 2c and the pressure spring 2d are arranged in the valve shell, one end of the pressure spring 2d abuts against the valve core 2c, the other end of the pressure spring 2d abuts against the inner wall of the rear valve shell 2b, the end part of the valve core 2c is conical, the end part of the valve core 2c aligns to the valve body outlet of the valve shell, and an atomizing nozzle 2e for polyurethane raw materials is formed between the end part of the valve core 2c and the valve body outlet of the valve shell.
Spout the material control assembly including spouting material hydro-cylinder 3, spout the cylinder body of material hydro-cylinder 3 and pass through the bolt fastening on the lateral wall of main hybrid seat 1, spout material control piston rod 3a and install on spouting material hydro-cylinder 3, spout material control piston rod 3a and stretch into main feed-through 1b from the main hybrid seat 1 outside in, spout and keep sealed between material control piston rod 3a and the main feed-through 1b, spout the junction of material control piston rod 3a removal orbit through discharge opening 1d and feed port 1c and main feed-through 1 b.
The material spraying control piston rod 3a is provided with two circulating grooves 3a1, the two circulating grooves 3a1 and two groups of material holes are in one-to-one correspondence, and when the material spraying control piston rod 3a is in the maximum stroke, the circulating grooves 3a1 are communicated with the tail end ports of the corresponding material inlet holes 1c and the start ports of the corresponding material outlet holes 1 d; when the material spraying control piston rod 3a is in the minimum stroke, the circulating groove 3a1 is only communicated with the initial port of the corresponding discharging hole 1 d.
The side wall of the main mixing seat 1 is provided with a main air inlet through hole 1g, the main air inlet through hole 1g extends to the inner wall of the main mixing seat 1, an air inlet hole 1h is further formed in the main mixing seat 1, one end of the air inlet hole 1h is communicated with an external high-pressure air source, and the other end of the air inlet hole is communicated with the main air inlet through hole 1 g.
The cleaning control assembly comprises a cleaning oil cylinder 4, a cylinder body of the cleaning oil cylinder 4 is fixedly connected to the side wall of the main mixing seat 1, an air injection control piston rod 4a is installed on the cleaning oil cylinder 4, the air injection control piston rod 4a extends into the main air inlet through hole 1g from the outer side of the main mixing seat 1, the air injection control piston rod 4a and the main air inlet through hole 1g are sealed, and the moving track of the air injection control piston rod 4a passes through the end part of the air inlet hole 1 h.
The lower end of the conveying pipe 5 extends into an inner hole of the main mixing seat 1, the telescopic cylinder 6 is fixed on the upper side of the main mixing seat 1 through a connecting flange 6b, a cavity is formed in the telescopic cylinder 6, the conveying pipe 5 on the upper side of the main mixing seat 1 penetrates through the telescopic cylinder 6, a piston 5a is fixedly connected to the outer wall of the conveying pipe 5 in the cavity of the telescopic cylinder 6, the cavity of the telescopic cylinder 6 is divided into two independent oil cavities 6a by the piston 5a, and oil holes of the two independent oil cavities 6a are formed in the telescopic cylinder 6 respectively.
The mixing core 8 is fixed at the lower end of the material conveying pipe 5 through threaded connection, the mixing core 8 is positioned in an inner hole of the main mixing seat 1, the mixing core 8 is also provided with an inner hole penetrating through the upper end surface and the lower end surface of the mixing core, the inner hole of the mixing core 8 is communicated with the material conveying pipe 5, the lower end port of the inner hole of the mixing core 8 is a jet orifice, the outer wall of the mixing core 8 is provided with an annular groove 8b, and a mixing chamber is formed between the annular groove 8b of the mixing core 8 and the inner hole wall of the main mixing seat 1;
the annular groove 8b of the mixing core 8 comprises an upper groove wall 8b1, an inner groove wall 8b3 and a lower groove wall 8b2, the inner groove wall 8b3 is in a vertical state, the upper groove wall 8b1 is in a horizontal state, the lower groove wall 8b2 is in an inclined state, an included angle between the lower groove wall 8b2 and the inner groove wall 8b3 is an obtuse angle, the lower part of the mixing core 8 is provided with a plurality of guide through holes 8c, the upper end opening of each guide through hole 8c extends to the lower groove wall 8b2 of the annular groove 8b, and the other end of each guide through hole 8c is communicated with the jet orifice of the mixing core 8.
The auxiliary mixing base 7 is also provided with an inner hole communicated with the inner hole of the main mixing base 1, the auxiliary mixing base 7 is fixed at the lower side of the main mixing base 1, the auxiliary mixing base 7 comprises an auxiliary mixing base body 7a and an auxiliary mixing block 7b, the auxiliary mixing block 7b is respectively in threaded connection with the main mixing base 1 and the auxiliary mixing base body 7a, a buffer chamber 7d is formed between the auxiliary mixing base body 7a and the auxiliary mixing block 7b, the side wall of the auxiliary mixing base body 7a is provided with an inlet (not shown in the figure) communicated with the buffer chamber 7d, and a gap communicated with the inner hole of the auxiliary mixing base 7 is also reserved between the auxiliary mixing base body 7a and the auxiliary mixing block 7b, namely a mixing port 7c communicated with the inner hole of the auxiliary mixing base 7 and the buffer chamber 7 d.
Before using, this mixing head device cooperates with the fine shears of outside fine and fine conveyer 9 of glass, and the export and the 5 upper ends of conveying pipeline intercommunication of fine conveyer 9 of glass, fine shears can be with the fine raw materials of glass (glass fiber raw materials) shredding, and fine conveyer 9 of glass inputs the fine raw materials of glass after shredding to conveying pipeline 5 in.
The feed port 1c of two sets of material holes communicates with outside high-pressure polyurethane raw materials source through defeated material joint 1e respectively, discharge opening 1d also communicates with outside polyurethane raw materials conveying line through defeated material joint 1e, during initial condition, the material control piston rod 3a that spouts the material hydro-cylinder is in maximum stroke department, high-pressure polyurethane raw materials gets into from feed port 1c to get rid of through circulation groove 3a1 and discharge opening 1d, high-pressure polyurethane raw materials can not produce loss of pressure, high-pressure polyurethane raw materials also can not be carried to main feed through-hole 1b in.
The initial end of an air inlet 1h of the main mixing seat 1 is communicated with external high-pressure air, in the initial state, an air injection control piston rod 4a of the cleaning oil cylinder 4 is positioned at the maximum stroke position, the air injection control piston rod 4a seals the tail end of the air inlet 1h, and at the moment, the high-pressure air cannot enter the main air inlet through hole 1g through the air inlet 1 h.
And (3) conveying oil into an independent oil cavity 6a of the telescopic cylinder barrel 6, so that the conveying pipe 5 moves downwards to the maximum displacement position, and at the moment, the annular groove 8b of the mixing core 8 is respectively communicated with the main feeding through hole 1b and the main air inlet through hole 1 g.
When the mixing head device is used for completing the foaming spraying operation, an external glass fiber shearing device and a glass fiber conveyor 9 are started, and chopped glass fiber raw materials pass through a material conveying pipe 5 and then are conveyed to a main mixing seat 1;
the high-pressure polyurethane raw material reaches the material pressure regulating valve 2 through the feeding hole 1c, enters from a valve body inlet 2a1, is discharged from an atomizing nozzle 2e between the end part of the valve core 2c and a valve body outlet of the valve shell, enters into an annular groove 8b of the mixing core 8 after being atomized and is secondarily mixed with air, and finally enters into an inner hole of the main mixing seat 1 through the guide through hole 8c to be impregnated with the chopped glass fiber raw material;
the inlet of the auxiliary mixing seat 7 is filled with high-pressure air, the high-pressure air enters the buffer chamber 7d and is sprayed out from the mixing port 7c, and the impregnated glass fibers are blown away by the high-pressure air and are fully mixed and uniformly flow out of the mold.
Example two
The present embodiment is different from the first embodiment only in that: in this embodiment, the mixing core is not included, and the inlet of the auxiliary mixing seat of the mixing head device is communicated with other powder (such as gypsum powder and the like) instead of high-pressure air, and the material conveying pipe 5 is then provided with a plug to be used as the common conventional L-shaped mixing head. Can produce soft foam sponge; hard bubble wood imitation; semi-rigid bubble insulation board pipeline etc. expands the applicable environment of this mixing head device greatly, satisfies the processing needs of different materials.
The foregoing description is only for two embodiments of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered as belonging to the protection scope of the present invention.
Claims (7)
1. A multifunctional high-pressure polyurethane mixing head device is characterized in that:
the device comprises a material conveying pipe, a main mixing seat, an auxiliary mixing seat, a material spraying control assembly, a cleaning control assembly and at least one material pressure regulating valve;
the main mixing seat is also provided with an inner hole penetrating through the upper end surface and the lower end surface of the main mixing seat, the bottom of the inner hole of the main mixing seat is provided with an outlet, the side wall of the main mixing seat is provided with a main feeding through hole, the main feeding through hole extends to the inner wall of the main mixing seat, the main mixing seat is also internally provided with at least one group of material holes, the at least one group of material holes are in one-to-one correspondence with at least one material pressure regulating valve, each group of material holes comprises an independent feeding hole and a discharge hole, and the tail end of the feeding hole and the initial end of the discharge hole are sequentially communicated with the main feeding through hole;
the material pressure regulating valve is arranged in the middle of the feeding hole, polyurethane raw materials entering the feeding hole pass through the material pressure regulating valve and then enter the main feeding through hole from the tail end of the feeding hole, the material pressure regulating valve comprises a valve shell, a valve core and a pressure spring, a cavity is arranged in the valve shell, a valve body inlet communicated with the start end of the corresponding feeding hole is formed in the side wall of the valve shell, a valve body outlet communicated with the tail end of the feeding hole is formed in the end part of the valve shell, the valve core and the pressure spring are arranged in the valve shell, one end of the pressure spring abuts against the valve core, the other end of the pressure spring abuts against the inner wall of the cavity of the valve shell, the end part of the valve core aligns with the valve body outlet of the valve shell, and an atomization nozzle for the polyurethane raw materials is formed between the end part of the valve core and the valve body outlet of the valve shell;
the material spraying control assembly at least comprises a material spraying control piston rod, the material spraying control piston rod extends into the main feeding through hole, the material spraying control piston rod and the main feeding through hole are kept sealed, and the moving tracks of the material spraying control piston rod respectively pass through the connecting positions of the discharge hole and the feeding hole and the main feeding through hole;
the side wall of the main mixing seat is provided with a main air inlet through hole, the main air inlet through hole extends to the inner wall of the main mixing seat, an air inlet hole is also arranged in the main mixing seat, one end of the air inlet hole is communicated with an external high-pressure air source, and the other end of the air inlet hole is communicated with the main air inlet through hole;
the cleaning control assembly at least comprises an air injection control piston rod, the air injection control piston rod extends into the main air inlet through hole, the air injection control piston rod and the main air inlet through hole are kept sealed, and the moving track of the air injection control piston rod passes through the connecting part of the air inlet hole and the main air inlet through hole;
the tail end of the material conveying pipe extends into an inner hole of the main mixing seat;
the auxiliary mixing seat is also provided with an inner hole communicated with the inner hole of the main mixing seat, the auxiliary mixing seat is fixedly connected to the lower side of the main mixing seat, the auxiliary mixing seat is also internally provided with a buffer chamber, the side wall of the auxiliary mixing seat is provided with an inlet communicated with the buffer chamber, and the inner wall of the auxiliary mixing seat is provided with a mixing port communicated with the buffer chamber.
2. The multifunctional high-pressure polyurethane mixing head device as claimed in claim 1, wherein:
the material spraying control piston rod is provided with at least one circulation groove, and the at least one circulation groove and the at least one group of material holes are in one-to-one correspondence;
when the material spraying control piston rod is in the maximum stroke, the circulating groove is communicated with the tail end port of the corresponding feeding hole and the start port of the corresponding discharging hole;
when the material spraying control piston rod is in the minimum stroke, the circulating groove is only communicated with the initial port of the corresponding discharging hole.
3. The multifunctional high-pressure polyurethane mixing head device as claimed in claim 1, wherein:
the mixing core is fixedly connected to the tail end of the material conveying pipe, is positioned in an inner hole of the main mixing seat, is also provided with an inner hole penetrating through the upper end face and the lower end face of the mixing core, the inner hole of the mixing core is communicated with the material conveying pipe, the lower port of the inner hole of the mixing core is a jet orifice, the outer wall of the mixing core is provided with an annular groove, the lower part of the mixing core is provided with a plurality of guide through holes, one end of each guide through hole is communicated with the lower edge of the annular groove, and the other end of each guide through hole is communicated with the jet orifice of the mixing core.
4. The multifunctional high-pressure polyurethane mixing head device of claim 3, wherein:
the annular groove of the mixed core comprises an upper groove wall, an inner groove wall and a lower groove wall, wherein the inner groove wall is in a vertical state, the upper groove wall is in a horizontal state, the lower groove wall is in an inclined state, and an included angle between the lower groove wall and the inner groove wall is an obtuse angle.
5. The multifunctional high-pressure polyurethane mixing head device as claimed in claim 1, wherein:
the material spraying control assembly further comprises a material spraying oil cylinder, a cylinder body of the material spraying oil cylinder is fixedly connected to the side wall of the main mixing seat, and a material spraying control piston rod is installed on the material spraying oil cylinder.
6. The multifunctional high-pressure polyurethane mixing head device as claimed in claim 1, wherein:
the cleaning control assembly further comprises a cleaning oil cylinder, a cylinder body of the cleaning oil cylinder is fixedly connected to the side wall of the main mixing seat, and an air injection control piston rod is installed on the cleaning oil cylinder.
7. The multifunctional high-pressure polyurethane mixing head device as claimed in claim 1, wherein:
still include telescopic cylinder, telescopic cylinder fixes at the main seat upside that mixes, is equipped with the cavity in the telescopic cylinder, and the conveying pipeline that is in the main seat outside that mixes runs through telescopic cylinder, is in the conveying pipeline outer wall fixedly connected with piston in the telescopic cylinder cavity, and the piston separates telescopic cylinder cavity for two independent oil pockets, and telescopic cylinder opens respectively have with the oilhole of two independent oil pockets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023299335.8U CN214214528U (en) | 2020-12-31 | 2020-12-31 | Multifunctional high-pressure polyurethane mixing head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023299335.8U CN214214528U (en) | 2020-12-31 | 2020-12-31 | Multifunctional high-pressure polyurethane mixing head device |
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| Publication Number | Publication Date |
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| CN214214528U true CN214214528U (en) | 2021-09-17 |
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Family Applications (1)
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|---|---|---|---|
| CN202023299335.8U Active CN214214528U (en) | 2020-12-31 | 2020-12-31 | Multifunctional high-pressure polyurethane mixing head device |
Country Status (1)
| Country | Link |
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| CN (1) | CN214214528U (en) |
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2020
- 2020-12-31 CN CN202023299335.8U patent/CN214214528U/en active Active
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