CN109318419B

CN109318419B - Polyurethane foaming equipment

Info

Publication number: CN109318419B
Application number: CN201811053012.5A
Authority: CN
Inventors: 林枫
Original assignee: Anqing Yongda Sports Culture Co ltd
Current assignee: ANQING YONGDA SPORTS CULTURE Co.,Ltd.
Priority date: 2018-09-10
Filing date: 2018-09-10
Publication date: 2020-12-18
Anticipated expiration: 2038-09-10
Also published as: CN109318419A

Abstract

The invention belongs to the technical field of polyurethane foaming equipment, and particularly relates to polyurethane foaming equipment which comprises a foaming box, a feeding hole, a discharging hole, a motor, a fixing piece, a main driving module, an elastic stirring module, a blowing module and a mixed foaming module, wherein the cross section of the interior of the foaming box is elliptical; the feeding hole is arranged at the upper end of the foaming box; the motor is fixed in the center of the upper end of the foaming box; the main driving module is fixedly connected with the motor; the elastic stirring module is fixed on the upper part of the main driving module; the blowing module is arranged on the inner wall of the foaming box; the mixing and foaming module is arranged at the lower part of the main driving module; according to the invention, the first elastic air bag and the second elastic air bag suck external air to bring the air into the foaming box, and the foaming raw materials are stirred and distributed through the main driving module, the elastic stirring module and the mixed foaming module, so that the air is easily blended into the foaming raw materials and retained by the foaming raw materials, and the foaming effect and the foaming efficiency of the polyurethane foaming machine are improved.

Description

Polyurethane foaming equipment

Technical Field

The invention belongs to the technical field of polyurethane foaming equipment, and particularly relates to polyurethane foaming equipment.

Background

At present, with the continuous improvement of living standard of people, polyurethane foam materials are generally applied to various fields of production and living and the like, such as polyurethane thermal insulation materials, polyurethane roller shutter doors and windows, polyurethane tiles, polyurethane composite glass, polyurethane furniture, polyurethane flowerpots, polyurethane guardrails and the like. In these industries, most of the production facilities for polyurethane foam materials used in these industries use air-blowing mixing polyurethane foaming facilities. This type of equipment is widely used due to its low cost, low technical difficulty, low maintenance cost, and the like.

Patent document 1: a polyurethane foaming machine, application No.: 2014107507820

In the above patent document 1, since the amount of gas blown into the polyurethane foaming material is small when the polyurethane foaming material is mixed, it is difficult to sufficiently foam the polyurethane material, which affects both the efficiency of foaming the polyurethane material and the effect of foaming the polyurethane material; therefore, the equipment capable of better improving the foaming efficiency and the foaming effect of the polyurethane raw material is provided.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides polyurethane foaming equipment, and aims to improve the foaming effect and the foaming efficiency of a polyurethane foaming machine. According to the invention, the first elastic air bag and the second elastic air bag suck external air to bring the air into the foaming box, and the foaming raw materials are stirred and distributed through the main driving module, the elastic stirring module and the mixed foaming module, so that the air is easily blended into the foaming raw materials and retained by the foaming raw materials, and the foaming effect and the foaming efficiency of the polyurethane foaming machine are improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the polyurethane foaming equipment comprises a foaming box, a feeding hole, a discharging hole, a motor, a fixing piece, a main driving module, an elastic stirring module, a blowing module and a mixed foaming module, wherein the cross section of the interior of the foaming box is elliptical; the two feeding holes are symmetrically arranged at the upper end of the foaming box; the motor is fixed in the center of the upper end of the foaming box through a fixing piece; the main driving module is positioned at the lower end of the motor and is fixedly connected with the motor, and the main driving module is used for intermittently sucking and extruding foaming raw materials to realize full mixing of the foaming raw materials; the elastic stirring module is fixed at the upper part of the main driving module and is used for extruding the blowing module and carrying out foaming mixing on the foaming raw materials in the foaming box; the blowing module is arranged on the inner wall of the foaming box and blows gas into the foaming box under the action of the elastic stirring module; the mixing and foaming module is arranged at the lower part of the main driving module and is used for extruding, mixing, stirring and mixing the foaming raw materials again; wherein the content of the first and second substances,

the main driving module comprises a hollow air shaft, a hollow shaft sleeve, a cam, an elastic air bag I, a hollow cylinder, a one-way vent plate and a rotating shaft, and the motor comprises a motor shaft; one end of the hollow air shaft is positioned in the foaming box, the other end of the hollow air shaft is positioned outside the foaming box, the hollow air shaft is fixedly connected with a motor shaft, and a first air hole is formed in the surface of the hollow air shaft at one end, positioned outside the foaming box; the hollow shaft sleeve is sleeved on the hollow air shaft, the hollow shaft sleeve and the outer wall of the foaming box enclose a closed space, and the closed space is communicated with the hollow air shaft through an air hole I; the first elastic air bag is fixed on the inner wall of the fixing piece, and the first elastic air bag is intermittently compressed to convey air to the closed space; the cam is arranged on the motor shaft, and the cam intermittently extrudes the first elastic air bag along with the rotation of the motor shaft so that the first elastic air bag intermittently transmits air to the hollow air shaft; the one-way ventilation plate is arranged in the hollow cylinder, the one-way ventilation plate is fixedly connected with the inner wall of the hollow cylinder, the one-way air valve I is arranged on the one-way ventilation plate, one-way ventilation is realized by the one-way ventilation plate through the one-way air valve I, meanwhile, the one-way ventilation plate is provided with an air suction hole, and the air suction amount of the air suction hole in unit time is smaller than the air outlet amount of the one-way air valve I; the one-way air valve I is used for enabling air at the upper part of the hollow cylinder to enter the lower part of the hollow cylinder through the one-way vent plate in a one-way mode; one end of the rotating shaft is fixed on the one-way ventilating plate, and the other end of the rotating shaft extends out of the hollow cylinder; the hollow cylinder is fixed at the lower end of the hollow air shaft and communicated with the hollow air shaft, and a plurality of feeding holes I are arranged on the hollow cylinder; the first feeding hole is the lower end of the one-way ventilating plate. When the foaming machine works, the motor is started, foaming raw materials are put in from the feeding hole, the foaming raw materials firstly pass through the main driving module and are intercepted by the elastic stirring module, the motor drives the cam to rotate, the cam intermittently extrudes the elastic air bag I, so that the air in the elastic air bag I reaches the hollow cylinder through the closed space and the hollow air shaft, the air at the upper part of the hollow cylinder is compressed, the air at the upper part of the hollow cylinder is enabled to enter the lower part of the hollow cylinder through the one-way vent plate in one way, the air pressure at the lower part of the hollow cylinder is increased, the air is discharged out of the hollow cylinder, when the foaming raw materials reach the lower part of the hollow cylinder through the elastic stirring module, the compressed elastic air bag I enables the upper part of the hollow cylinder to generate negative pressure when recovering, the lower part of the hollow cylinder generates negative pressure due to the existence of the air suction hole, so that, the foaming raw material in the hollow cylinder is discharged, and the mixing and stirring of the foaming raw material are promoted in the process that the foaming raw material is sucked and discharged by the hollow cylinder.

The elastic stirring module comprises a semicircular baffle I, a telescopic rod, a fixed sleeve and a spring I; the first semicircular separation blades are provided with two first through holes uniformly, the first semicircular separation blades are connected through a telescopic rod, and the first semicircular separation blades extrude the air blowing module to blow air when the telescopic rod is extended; the fixing sleeve is fixed on the cylindrical surface of the hollow cylinder and is elastically connected with the semicircular baffle plate I through a spring I; a second feeding hole is formed in the telescopic rod; and the second feeding hole is used for enabling the foaming raw material to continuously enter and exit the telescopic rod when the telescopic rod stretches back and forth. When the foaming machine works, the motor drives the hollow cylinder to rotate, the hollow cylinder drives the semicircular separation blade to rotate through the spring, preliminary stirring of a pair of foaming raw materials by the semicircular separation blade is realized, the semicircular separation blade I intermittently extrudes the blowing module when rotating due to the fact that the interior of the foaming box is oval, the blowing module blows air to the interior of the foaming box, foaming of the foaming raw materials in the foaming box is promoted, the foaming raw materials gradually flow downwards from the first material through hole in the semicircular separation blade I, the foaming raw materials are dispersed by the first material through hole, and gas can enter the foaming raw materials to foam; meanwhile, in the telescopic process of the telescopic rod, part of the foaming raw materials enter and exit in the telescopic rod through the feeding hole II, so that the foaming of the foaming raw materials is facilitated, and the foaming effect and the foaming efficiency of the foaming raw materials are improved.

The blowing module comprises an elastic air bag II, a one-way air valve III, elastic waterproof cloth and a rigid plate, wherein the elastic waterproof cloth is positioned beside the side wall of the foaming box, and the elastic waterproof cloth and the inner wall of the foaming box enclose to form an annular space; in the two annular spaces of the elastic air bag, the second elastic air bag is compressed to blow air into the foaming box; the rigid plates are embedded in the elastic waterproof cloth, at least ten rigid plates are arranged, and the rigid plates are used for supporting the elastic waterproof cloth to enable the elastic waterproof cloth to seal the annular space; the one-way air valve II is fixed on the inner wall of the foaming box and used for enabling the air outside the foaming box to enter the elastic air bag II in one way; and the one-way air valve III is fixed on the elastic waterproof cloth and used for enabling air in the compressed elastic air bag II to pass through the elastic waterproof cloth in one way and enter the foaming box. The during operation, elasticity stirring module intermittent type extrusion elasticity waterproof cloth for the rigidity board is also extruded by the elasticity stirring module, and the rigidity board is extruded on elasticity gasbag two, makes elasticity gasbag two by the extrusion, and the gas in the elasticity gasbag two is single-direction extruded to the foaming incasement, has promoted the foaming of foaming raw materials, has improved the foaming effect of foaming raw materials.

The mixed foaming module comprises a shaft sleeve, a second spring, a fixed shaft, a third spring and a ball head, wherein one end of the shaft sleeve is closed, and a plurality of through holes are formed in the curved wall of the shaft sleeve; the number of the fixed shafts is at least three, one end of each fixed shaft is fixed on the curved wall of the rotating shaft, and the other end of each fixed shaft is positioned in the corresponding shaft sleeve; the second spring is positioned between the fixed shaft and the shaft sleeve; one end of the third spring is fixed at the end part of the shaft sleeve, and the other end of the third spring is a free end; the bulb is fixed on the free end of the spring III, and the bulb is just in contact with the blowing module in the length direction of the oval foaming box. The during operation, the motor drives the mixed foaming module through the pivot and rotates, because of the inside ellipse circular that is of foaming case for two and three intermittent type formulas of spring are compressed, and the axle sleeve is the back and forth movement on the fixed axle, make the foaming raw materials advance into and go out on the axle sleeve through the through-hole, are favorable to foaming raw materials foaming, improve foaming raw materials's foaming efficiency and improve foaming raw materials's foaming effect, and simultaneously, three springs make the module of blowing blow with the help of the bulb extrusion module of blowing, improve the work efficiency of the module of blowing.

The feed inlet comprises a feed pipe, a bracket and an impeller, and the bracket is fixed on the pipe wall of the feed pipe; the impeller is arranged on the support, the impeller is rotationally connected with the support, and the impeller is located in the center of the feeding pipe. During operation, the foaming raw materials passes through the inlet pipe and gets into in the foaming case, and when the foaming raw materials got into the foaming case, the foaming raw materials pushed down the impeller and made the impeller rotate, and pivoted impeller has promoted the foaming raw materials dispersion again, is favorable to improving the foaming degree of foaming raw materials.

At least two groups of mixed foaming modules are arranged on the rotating shaft. The during operation arranges the mixed foaming module of multiunit in the pivot, has the effect that the stirring mixes to the foaming raw materials on the one hand, and the mixed foaming module of multiunit has the additional strengthening to blowing to the module of blowing on the other hand, is favorable to promoting the module of blowing to blow, improves the foaming effect of foaming raw materials.

And the hollow cylinder is provided with an annular flow guide cover with a small upper end and a large lower end, and the annular flow guide cover is positioned above the elastic stirring module. During operation, when the foaming raw materials falls on the annular air guide sleeve, the annular air guide sleeve can guide the foaming raw materials to the semicircular baffle pieces I, the quantity of the foaming raw materials passing through the middle of the two semicircular baffle pieces I is reduced, and the foaming effect of the foaming raw materials is promoted.

The invention has the following beneficial effects:

1. according to the invention, the first elastic air bag and the second elastic air bag suck external air to bring the air into the foaming box, and the foaming raw materials are stirred and distributed through the main driving module, the elastic stirring module and the mixed foaming module, so that the air is easily blended into the foaming raw materials and retained by the foaming raw materials, and the foaming effect and the foaming efficiency of the polyurethane foaming machine are improved.

2. According to the invention, the foaming raw material is primarily stirred through the rotation of the semicircular baffle piece I, so that the foaming efficiency of the polyurethane foaming machine is improved, and the semicircular baffle piece I continuously extrudes the air blowing module when the foaming box is in an oval shape, so that the air blowing module blows air into the foaming box, the foaming raw material in the foaming box is promoted to foam, the foaming raw material is dispersed from the material through hole I of the semicircular baffle piece I to flow downwards, and the gas is promoted to enter the foaming raw material to foam; is favorable for improving the foaming effect of the polyurethane foaming machine.

3. In the telescopic rod stretching process, part of the foaming raw materials enter and exit from the telescopic rod through the feeding hole II, so that the foaming of the foaming raw materials is promoted, and the foaming effect and the foaming efficiency of the foaming raw materials are improved.

4. The mixed foaming module is driven to rotate by the rotating shaft, so that the second spring and the third spring are intermittently compressed, the shaft sleeve moves back and forth on the fixed shaft, foaming raw materials enter and exit from the shaft sleeve through the through hole, foaming of the foaming raw materials is facilitated, foaming efficiency of the foaming raw materials is improved, foaming effect of the foaming raw materials is improved, meanwhile, the third spring extrudes the air blowing module through the ball head to blow air, and working efficiency of the air blowing module is improved.

5. According to the invention, the annular air guide sleeve is arranged on the hollow cylinder, when the foaming raw material falls on the annular air guide sleeve, the foaming raw material is guided to the semicircular baffle pieces I by the annular air guide sleeve, so that the amount of the foaming raw material passing through the two semicircular baffle pieces I is reduced, and the foaming effect of the foaming raw material is promoted.

Drawings

FIG. 1 is a schematic view of a polyurethane foaming machine according to the present invention;

FIG. 2 is a schematic view of the connection between a first semi-circular baffle and a hollow cylinder;

in the figure: the foaming box comprises a foaming box 1, a feeding hole 11, a feeding pipe 111, an impeller 112, a discharging hole 12, a motor 13, a fixing piece 14, a main driving module 2, a hollow air shaft 21, a hollow shaft sleeve 22, a cam 23, a first elastic air bag 24, a hollow cylinder 25, a first feeding hole 251, a one-way vent plate 26, a rotating shaft 27, an annular air guide sleeve 28, an elastic stirring module 3, a first semicircular baffle 31, a first feeding hole 311, an expansion rod 32, a second feeding hole 321, a first spring 33, a blowing module 4, a second elastic air bag 41, a second one-way air valve 42, a third one-way air valve 43, elastic waterproof cloth 44, a rigid plate 45, an annular space 46, a mixed foaming module 5, a shaft sleeve 51, a through hole 511, a second spring 52, a fixed shaft 53.

Detailed Description

A polyurethane foam producing apparatus according to an embodiment of the present invention will be described below with reference to fig. 1 to 2.

As shown in fig. 1 and fig. 2, the polyurethane foaming device of the present invention comprises a foaming box 1, a feeding port 11, a discharging port 12, a motor 13, a fixing member 14, a main driving module 2, an elastic stirring module 3, a blowing module 4 and a mixing foaming module 5, wherein the cross section of the interior of the foaming box 1 is elliptical; two feed inlets 11 are arranged, and the two feed inlets 11 are symmetrically arranged at the upper end of the foaming box 1; the motor 13 is fixed in the center of the upper end of the foaming box 1 through a fixing piece 14; the main driving module 2 is positioned at the lower end of the motor 13, the main driving module 2 is fixedly connected with the motor 13, and the main driving module 2 is used for intermittently sucking and extruding foaming raw materials to fully mix the foaming raw materials; the elastic stirring module 3 is fixed on the upper part of the main driving module 2, and the elastic stirring module 3 is used for extruding the blowing module 4 and carrying out foaming mixing on the foaming raw materials in the foaming box 1; the blowing module 4 is arranged on the inner wall of the foaming box 1, and the blowing module 4 blows gas into the foaming box 1 under the action of the elastic stirring module 3; the mixing and foaming module 5 is arranged at the lower part of the main driving module 2, and the mixing and foaming module 5 is used for extruding, mixing, stirring and mixing the foaming raw materials again; wherein the content of the first and second substances,

the main driving module 2 comprises a hollow air shaft 21, a hollow shaft sleeve 22, a cam 23, an elastic air bag I24, a hollow cylinder 25, a one-way vent plate 26 and a rotating shaft 27, and the motor 13 comprises a motor shaft; one end of the hollow air shaft 21 is positioned in the foaming box 1, the other end of the hollow air shaft 21 is positioned outside the foaming box 1, the hollow air shaft 21 is fixedly connected with a motor shaft, and an air hole I is arranged on the shaft surface of the hollow air shaft 21 at one end outside the foaming box 1; the hollow shaft sleeve 22 is sleeved on the hollow air shaft 21, the hollow shaft sleeve 22 and the outer wall of the foaming box 1 enclose a closed space, and the closed space is communicated with the hollow air shaft 21 through an air hole I; the first elastic air bag 24 is fixed on the inner wall of the fixing part 14, and the first elastic air bag 24 is intermittently compressed to convey air to the closed space; the cam 23 is arranged on a motor shaft, and the cam 23 intermittently extrudes the elastic air bag I24 along with the rotation of the motor shaft so that the elastic air bag I24 intermittently transmits air to the hollow air shaft 21; the one-way ventilation plate 26 is arranged in the hollow cylinder 25, the one-way ventilation plate 26 is fixedly connected with the inner wall of the hollow cylinder 25, the one-way air valve I is arranged on the one-way ventilation plate 26, one-way ventilation of the one-way ventilation plate 26 is realized through the one-way air valve I, meanwhile, the one-way ventilation plate 26 is provided with an air suction hole, and the air suction volume of the air suction hole in unit time is smaller than the air outlet volume of the one-way air valve I; the one-way air valve I is used for enabling air at the upper part of the hollow cylinder 25 to pass through the one-way vent plate 26 in a one-way mode and enter the lower part of the hollow cylinder 25; one end of the rotating shaft 27 is fixed on the one-way ventilating plate 26, and the other end of the rotating shaft 27 extends out of the hollow cylinder 25; the hollow cylinder 25 is fixed at the lower end of the hollow air shaft 21, the hollow cylinder 25 is communicated with the hollow air shaft 21, and a plurality of first feeding holes 251 are formed in the hollow cylinder 25; the first feeding hole 251 is the lower end of the one-way ventilation plate 26. When the foaming machine works, the motor 13 is started, foaming raw materials are put in from the feeding hole 11, the foaming raw materials firstly pass through the main driving module 2 and are intercepted by the elastic stirring module 3, the motor 13 drives the cam 23 to rotate, the cam 23 intermittently extrudes the elastic air bags 24, so that the air in the elastic air bags 24 reaches the hollow cylinder 25 through the closed space and the hollow air shaft 21, the air at the upper part of the hollow cylinder 25 is compressed, the air at the upper part of the hollow cylinder 25 enters the lower part of the hollow cylinder 25 through the one-way ventilating plate 26 in one way, the air pressure at the lower part of the hollow cylinder 25 is increased, the air is discharged out of the hollow cylinder 25, when the foaming raw materials reach the lower part of the hollow cylinder 25 through the elastic stirring module 3, the compressed elastic air bags 24 generate negative pressure at the upper part of the hollow cylinder 25 when recovering, the lower part of the hollow cylinder 25 generates negative pressure due to the, when the elastic air bag 24 is compressed again, the elastic air bag 24 inputs air into the hollow cylinder 25, so that the foaming raw material in the hollow cylinder 25 is removed, and the mixing and stirring of the foaming raw material are promoted in the process that the foaming raw material is sucked and removed by the hollow cylinder 25.

As shown in fig. 1 and 2, the elastic stirring module 3 includes a first semicircular baffle 31, a telescopic rod 32, a fixing sleeve and a first spring 33; the two semicircular blocking pieces 31 are arranged, a plurality of material through holes 311 are uniformly distributed on the semicircular blocking pieces 31, the semicircular blocking pieces 31 are connected through a telescopic rod 32, and the semicircular blocking pieces 31 extrude the air blowing module 4 to blow air when the telescopic rod 32 is extended; the fixing sleeve is fixed on the cylindrical surface of the hollow cylinder 25 and is elastically connected with the semicircular baffle piece I31 through a spring I33; a second feeding hole 321 is formed in the telescopic rod 32; the second feeding hole 321 is used for enabling the foaming raw material to continuously enter and exit the telescopic rod 32 when the telescopic rod 32 extends back and forth. During operation, the motor 13 drives the hollow cylinder 25 to rotate, the hollow cylinder 25 drives the semicircular baffle piece I31 to rotate through the spring I33, preliminary stirring of the foaming raw material by the semicircular baffle piece I31 is achieved, the interior of the foaming box 1 is oval, so that the semicircular baffle piece I31 intermittently extrudes the air blowing module 4 during rotation, the air blowing module 4 blows air into the interior of the foaming box 1, foaming of the foaming raw material in the foaming box 1 is promoted, the foaming raw material gradually flows downwards from the first material through hole 311 in the semicircular baffle piece I31, the foaming raw material can be dispersed by the first material through hole 311, and gas can enter the foaming raw material to foam; meanwhile, in the telescopic process of the telescopic rod 32, part of the foaming raw materials enter and exit in the telescopic rod 32 through the second feeding hole 321, so that the foaming of the foaming raw materials is facilitated, and the foaming effect and the foaming efficiency of the foaming raw materials are improved.

As shown in fig. 1, the air blowing module 4 comprises a second elastic air bag 41, a second one-way air valve 42, a third one-way air valve 43, an elastic waterproof cloth 44 and a rigid plate 45, wherein the elastic waterproof cloth 44 is positioned beside the side wall of the foaming box 1, and the elastic waterproof cloth 44 and the inner wall of the foaming box 1 enclose an annular space 46; in the annular space 46 of the second elastic air bag 41, the second elastic air bag 41 is compressed to blow air into the foaming box 1; the rigid plate 45 is embedded in the elastic waterproof cloth 44, at least ten rigid plates 45 are arranged, and the rigid plates 45 are used for supporting the elastic waterproof cloth 44 to enable the elastic waterproof cloth 44 to seal the annular space 46; the second one-way air valve 42 is fixed on the inner wall of the foaming box 1, and the second one-way air valve 42 is used for enabling the air outside the foaming box 1 to enter the second elastic air bag 41 in one way; the one-way air valve three 43 is fixed on the elastic waterproof cloth 44, and the one-way air valve three 43 is used for enabling the air in the compressed elastic air bag two 41 to pass through the elastic waterproof cloth 44 in one way and enter the foaming box 1. During operation, elasticity stirring module 3 intermittent type extrusion elasticity tarpaulin 44 for rigidity board 45 is also extruded by elasticity stirring module 3, and rigidity board 45 is extruded on two 41 of elasticity gasbag, makes two 41 of elasticity gasbag extruded, and the gas in two 41 of elasticity gasbag is in the one-way extrusion to foaming box 1, has promoted the foaming of foaming raw materials, has improved the foaming effect of foaming raw materials.

As shown in fig. 1, the hybrid foaming module 5 includes a shaft sleeve 51, a second spring 52, a fixed shaft 53, a third spring 54 and a ball head 55, wherein one end of the shaft sleeve 51 is closed, and a plurality of through holes 511 are arranged on a curved wall of the shaft sleeve 51; at least three fixed shafts 53 are arranged, one end of each fixed shaft 53 is fixed on the curved wall of the rotating shaft 27, and the other end of each fixed shaft 53 is positioned in the shaft sleeve 51; the second spring 52 is positioned between the fixed shaft 53 and the shaft sleeve 51; one end of the third spring 54 is fixed at the end part of the shaft sleeve 51, and the other end of the third spring 54 is a free end; the ball 55 is fixed on the free end of the spring III 54, and the ball 55 is just contacted with the air blowing module 4 in the length direction of the oval foaming box 1. In operation, motor 13 drives through pivot 27 and mixes foaming module 5 and rotate, because of foaming case 1 is inside to be oval-shaped, make two 52 and three 54 intermittent type formulas of spring compressed, axle sleeve 51 round trip movement on fixed axle 53, make the foaming raw materials pass through-hole 511 and advance on axle sleeve 51 and pass in and out, be favorable to foaming raw materials foaming, improve the foaming efficiency of foaming raw materials and improve the foaming effect of foaming raw materials, and simultaneously, three 54 springs make the module 4 of blowing blow with the help of bulb 55 extrusion module 4 of blowing, improve the work efficiency of the module 4 of blowing.

As shown in fig. 1, the feed inlet 11 comprises a feed pipe 111, a bracket and an impeller 112, wherein the bracket is fixed on the wall of the feed pipe 111; the impeller 112 is arranged on the bracket, the impeller 112 is rotatably connected with the bracket, and the impeller 112 is positioned in the center of the feeding pipe 111. During operation, the foaming raw materials passes through inlet pipe 111 and gets into in the foaming case 1, and when the foaming raw materials got into foaming case 1, the foaming raw materials pushed down impeller 112 and made impeller 112 rotate, and pivoted impeller 112 has promoted the foaming raw materials dispersion again, is favorable to improving the foaming degree of foaming raw materials.

As shown in fig. 1, at least two sets of mixing and foaming modules 5 are arranged on the rotating shaft 27. During operation, arrange multiunit and mix foaming module 5 in pivot 27, on the one hand has the effect that the stirring was mixed to the foaming raw materials, and on the other hand multiunit is mixed foaming module 5 and is blown to blowing module 4 and have the additional work, is favorable to promoting blowing module 4 to blow, improves the foaming effect of foaming raw materials.

As shown in fig. 1, an annular air guide sleeve 28 with a small upper end and a large lower end is arranged on the hollow cylinder 25, and the annular air guide sleeve 28 is positioned above the elastic stirring module 3. During operation, when the foaming raw materials falls on annular kuppe 28, annular kuppe 28 can reduce the volume that the foaming raw materials passed from the middle of two semicircle separation blade 31 with foaming raw materials drainage to semicircle separation blade 31 on, be favorable to promoting the foaming effect of foaming raw materials.

The specific working process is as follows:

when the foaming box is in work, the motor 13 is started, foaming raw materials are fed from the feeding hole 11, when the foaming raw materials enter the foaming box 1, the foaming raw materials press the impeller 112 downwards to enable the impeller 112 to rotate, the rotating impeller 112 promotes the dispersing of the foaming raw materials, when the foaming raw materials pass through the main driving module 2, and when part of the foaming raw materials fall onto the annular guide cover 28, the foaming raw materials are guided to the semicircular baffle pieces one 31 by the annular guide cover 28, so that the amount of the foaming raw materials passing through the middle of the two semicircular baffle pieces one 31 is reduced, and the foaming effect of the foaming raw materials is promoted; part of the foaming raw material is directly intercepted by the elastic stirring module 3, the hollow cylinder 25 drives the semicircular baffle piece I31 to rotate through the spring I33, preliminary stirring of the foaming raw material by the semicircular baffle piece I31 is realized, the semicircular baffle piece I31 intermittently extrudes the blowing module 4 when rotating due to the fact that the interior of the foaming box 1 is oval, the blowing module 4 blows air into the interior of the foaming box 1, foaming of the foaming raw material in the foaming box 1 is promoted, the foaming raw material gradually flows downwards from the first material through hole 311 in the semicircular baffle piece I31, the foaming raw material can be dispersed by the first material through hole 311, and gas can enter the foaming raw material to foam; meanwhile, in the expansion process of the expansion link 32, part of the foaming raw material enters and exits in the expansion link 32 through the second feeding hole 321, so that the foaming of the foaming raw material is facilitated, and the foaming effect and the foaming efficiency of the foaming raw material are improved; when the motor 13 drives the cam 23 to rotate, the cam 23 intermittently extrudes the first elastic air bag 24, so that air in the first elastic air bag 24 reaches the hollow cylinder 25 through the closed space and the hollow air shaft 21, the air at the upper part of the hollow cylinder 25 is compressed, the air at the upper part of the hollow cylinder 25 enters the lower part of the hollow cylinder 25 through the one-way vent plate 26 in one way, the air pressure at the lower part of the hollow cylinder 25 is increased, and the air is discharged out of the hollow cylinder 25; when the foaming raw material reaches the lower part of the hollow cylinder 25 through the elastic stirring module 3, the compressed elastic air bag I24 enables the upper part of the hollow cylinder 25 to generate negative pressure when recovering, the lower part of the hollow cylinder 25 generates negative pressure due to the existence of the air suction hole, so that the foaming raw material is sucked by the hollow cylinder 25, when the elastic air bag I24 is compressed again, the elastic air bag I24 inputs air into the hollow cylinder 25, so that the foaming raw material in the hollow cylinder 25 is discharged, and the mixing and stirring of the foaming raw material are promoted in the process that the foaming raw material is sucked and discharged by the hollow cylinder 25.

When the elastic waterproof cloth 44 is intermittently extruded, the rigid plate 45 is also extruded by the elastic stirring module 3, the rigid plate 45 is extruded on the elastic air bag II 41, the elastic air bag II 41 is extruded, and the gas in the elastic air bag II 41 is extruded into the foaming box 1 in a single direction, so that foaming of the foaming raw material is promoted, and the foaming effect of the foaming raw material is improved.

When motor 13 drives through pivot 27 and mixes foaming module 5 and rotate, because of the inside ellipse that is of foaming case 1, make two 52 and three 54 intermittent type formulas of spring compressed, axle sleeve 51 back and forth movement on fixed axle 53, make the foaming raw materials pass through-hole 511 and advance in and out on axle sleeve 51, be favorable to foaming raw materials foaming, improve the foaming efficiency of foaming raw materials and improve the foaming effect of foaming raw materials, and simultaneously, three 54 springs make the module 4 of blowing blow with the help of bulb 55 extrusion module 4 of blowing, improve the work efficiency of the module 4 of blowing.

While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

(A) In the above embodiment, the gas is blown into the foam box through the elastic air bag, but the present invention is not limited thereto, and the hot gas may be blown into the foam box directly by the induced draft fan.

Industrial applicability

According to the invention, the first elastic air bag and the second elastic air bag suck external air to bring the air into the foaming box, and the foaming raw materials are stirred and distributed by the main driving module, the elastic stirring module and the mixed foaming module, so that the air is easily blended into the foaming raw materials and retained by the foaming raw materials, and the foaming effect and the foaming efficiency of the polyurethane foaming machine are improved. Therefore, the polyurethane foaming machine is useful in the technical field of polyurethane foaming equipment.

Claims

1. The utility model provides a polyurethane foaming equipment, includes foaming case (1), feed inlet (11), discharge gate (12), motor (13), mounting (14), main drive module (2), elasticity stirring module (3), blowing module (4) and mix foaming module (5), its characterized in that: the interior of the foaming box (1) is elliptical; two feeding holes (11) are arranged, and the two feeding holes (11) are symmetrically arranged at the upper end of the foaming box (1); the motor (13) is fixed in the center of the upper end of the foaming box (1) through a fixing piece (14); the main driving module (2) is positioned at the lower end of the motor (13), the main driving module (2) is fixedly connected with the motor (13), and the main driving module (2) is used for intermittently sucking and extruding foaming raw materials to fully mix the foaming raw materials; the elastic stirring module (3) is fixed on the upper part of the main driving module (2), and the elastic stirring module (3) is used for extruding the blowing module (4) and foaming and mixing the foaming raw materials in the foaming box (1); the blowing module (4) is arranged on the inner wall of the foaming box (1), and the blowing module (4) blows gas into the foaming box (1) under the action of the elastic stirring module (3); the mixing and foaming module (5) is arranged at the lower part of the main driving module (2), and the mixing and foaming module (5) is used for extruding, mixing, stirring and mixing the foaming raw materials again; wherein the content of the first and second substances,

the main driving module (2) comprises a hollow air shaft (21), a hollow shaft sleeve (22), a cam (23), a first elastic air bag (24), a hollow cylinder (25), a one-way vent plate (26) and a rotating shaft (27), and the motor (13) comprises a motor shaft; one end of the hollow air shaft (21) is positioned in the foaming box (1), the other end of the hollow air shaft (21) is positioned outside the foaming box (1), the hollow air shaft (21) is fixedly connected with a motor shaft, and a first air hole is formed in the shaft surface of the hollow air shaft (21) at one end outside the foaming box (1); the hollow shaft sleeve (22) is sleeved on the hollow air shaft (21), the hollow shaft sleeve (22) and the outer wall of the foaming box (1) enclose to form a closed space, and the closed space is communicated with the hollow air shaft (21) through a first air hole; the first elastic air bag (24) is fixed on the inner wall of the fixing piece (14), and the first elastic air bag (24) is intermittently compressed to convey air to the closed space; the cam (23) is arranged on a motor shaft, and the cam (23) intermittently extrudes the first elastic air bag (24) along with the rotation of the motor shaft so that the first elastic air bag (24) intermittently transmits air to the hollow air shaft (21); the one-way ventilation plate (26) is arranged in the hollow cylinder (25), the one-way ventilation plate (26) is fixedly connected with the inner wall of the hollow cylinder (25), the one-way air valve I is arranged on the one-way ventilation plate (26), and the one-way ventilation plate (26) realizes one-way ventilation through the one-way air valve I; meanwhile, the one-way vent plate (26) is provided with an air suction hole, and the air suction quantity of the air suction hole in unit time is smaller than the air outlet quantity of the one-way air valve I; the one-way air valve I is used for enabling air at the upper part of the hollow cylinder (25) to pass through the one-way vent plate (26) in a one-way mode and enter the lower part of the hollow cylinder (25); one end of the rotating shaft (27) is fixed on the one-way ventilating plate (26), and the other end of the rotating shaft (27) extends out of the hollow cylinder (25); the hollow cylinder (25) is fixed at the lower end of the hollow air shaft (21), the hollow cylinder (25) is communicated with the hollow air shaft (21), and a plurality of first feeding holes (251) are formed in the hollow cylinder (25); the first feeding hole (251) is the lower end of the one-way ventilation plate (26).

2. A polyurethane foaming device according to claim 1, wherein: the elastic stirring module (3) comprises a first semicircular baffle plate (31), an expansion link (32), a fixed sleeve and a first spring (33); the two semicircular blocking pieces (31) are arranged, a plurality of material through holes I (311) are uniformly distributed in the semicircular blocking pieces I (31), the semicircular blocking pieces I (31) are connected through a telescopic rod (32), and the semicircular blocking pieces I (31) extrude the air blowing module (4) to blow air when the telescopic rod (32) is extended; the fixing sleeve is fixed on the cylindrical surface of the hollow cylinder (25) and is elastically connected with the semicircular baffle piece I (31) through a spring I (33); a second feeding hole (321) is formed in the telescopic rod (32); the second feeding hole (321) is used for enabling the foaming raw material to continuously enter and exit the telescopic rod (32) when the telescopic rod (32) stretches back and forth.

3. A polyurethane foaming device according to claim 1, wherein: the blowing module (4) comprises a second elastic air bag (41), a second one-way air valve (42), a third one-way air valve (43), elastic waterproof cloth (44) and a rigid plate (45), wherein the elastic waterproof cloth (44) is positioned beside the side wall of the foaming box (1), and the elastic waterproof cloth (44) and the inner wall of the foaming box (1) enclose to form an annular space (46); in the annular space (46) of the second elastic air bag (41), the second elastic air bag (41) is compressed to blow air into the foaming box (1); the rigid plates (45) are embedded in the elastic waterproof cloth (44), at least ten rigid plates (45) are arranged, and the rigid plates (45) are used for supporting the elastic waterproof cloth (44) to enable the elastic waterproof cloth (44) to seal the annular space (46); the one-way air valve II (42) is fixed on the inner wall of the foaming box (1), and the one-way air valve II (42) is used for enabling the external air of the foaming box (1) to enter the elastic air bag II (41) in a one-way mode; the one-way air valve III (43) is fixed on the elastic waterproof cloth (44), and the one-way air valve III (43) is used for enabling air in the compressed elastic air bag II (41) to penetrate through the elastic waterproof cloth (44) in one way and enter the foaming box (1).

4. A polyurethane foaming device according to claim 1, wherein: the mixed foaming module (5) comprises a shaft sleeve (51), a second spring (52), a fixed shaft (53), a third spring (54) and a ball head (55), one end of the shaft sleeve (51) is closed, and a plurality of through holes (511) are formed in the curved wall of the shaft sleeve (51); at least three fixed shafts (53) are arranged, one end of each fixed shaft (53) is fixed on the curved wall of the rotating shaft (27), and the other end of each fixed shaft (53) is positioned in the shaft sleeve (51); the second spring (52) is positioned between the fixed shaft (53) and the shaft sleeve (51); one end of the spring III (54) is fixed at the end part of the shaft sleeve (51), and the other end of the spring III (54) is a free end; the bulb (55) is fixed on the free end of the spring III (54), and the bulb (55) is just in contact with the blowing module (4) in the length direction of the oval foaming box (1).

5. A polyurethane foaming device according to claim 1, wherein: the feed inlet (11) comprises a feed pipe (111), a bracket and an impeller (112), wherein the bracket is fixed on the pipe wall of the feed pipe (111); the impeller (112) is arranged on the bracket, the impeller (112) is rotatably connected with the bracket, and the impeller (112) is positioned in the center of the feeding pipe (111).

6. A polyurethane foaming device according to claim 4, wherein: and at least two groups of mixed foaming modules (5) are arranged on the rotating shaft (27).

7. A polyurethane foaming device according to claim 1, wherein: an annular air guide sleeve (28) with a small upper end and a large lower end is arranged on the hollow cylinder (25), and the annular air guide sleeve (28) is positioned above the elastic stirring module (3).