WO2022011675A1

WO2022011675A1 - Polyurethane foaming apparatus

Info

Publication number: WO2022011675A1
Application number: PCT/CN2020/102648
Authority: WO
Inventors: 唐定凯
Original assignee: 清远市番亿聚氨酯有限公司
Priority date: 2020-07-15
Filing date: 2020-07-17
Publication date: 2022-01-20
Also published as: CN111873297A

Abstract

The present invention relates to the field of polyurethane production apparatus. Disclosed is a polyurethane foaming apparatus, comprising an inner barrel, an outer barrel, a material transportation device, an inner barrel stirring device, an outer barrel stirring device, a first motor, a second motor, and a controller. The inner barrel is disposed on the material transportation device. An inner cavity of the inner barrel is communicated with the material transportation device. The material transportation device is disposed in the outer barrel. A discharging device is disposed on the outer barrel. The inner barrel stirring device comprises a first rotating shaft and a first stirring blade. The outer barrel stirring device comprises a second rotating shaft and a second stirring blade. The material transportation device comprises a material transportation pipe, a spiral rod, and a third motor. The discharging device comprises a baffle, a lifting plate, a recessed, and a hydraulic cylinder. The recess is fixedly disposed at the bottom of the outer barrel. The hydraulic cylinder is fixedly disposed on the inner bottom surface of the recess. An output end of the hydraulic cylinder is connected to the lifting plate. Telescopic guide columns are disposed between the lifting plate and a base. The upper surface of the lifting plate is connected to the baffle by means of upright columns. The present invention has the advantages of high material mixing uniformity, high finished product quality, convenient use, and small space occupation.

Description

A kind of polyurethane foaming equipment

technical field

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

Background technique

Polyurethane foam materials are widely used in many fields such as production and life, such as: tiles, doors and windows, composite glass, furniture, guardrails, etc. The existing foaming equipment usually puts all materials into a specific area, and then stirs them. However, due to the fast reaction speed of the mixture and the inconsistent reaction of the successively injected mixtures, the mixtures with different reaction degrees will be superimposed along the flow direction, and delamination will easily occur at the superposition, resulting in poor molding accuracy of the produced polyurethane material, and the finished product Low quality and low mixing uniformity.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a polyurethane foaming device with high mixing uniformity of materials, high quality of finished products, convenient use and small footprint.

In order to solve the above-mentioned technical problems, the present invention provides a polyurethane foaming equipment, comprising an inner barrel, an outer barrel, a feeding device, an inner barrel stirring device, an outer barrel stirring device, a first motor, a second motor and a controller;

The inner barrel is arranged on the top of the feeding device, the inner cavity of the inner barrel is communicated with the feeding device, the feeding device is erected in the outer barrel, and the outer barrel is provided with a A discharge device that controls the on-off of the discharge port of the feeding device, the inner barrel stirring device is arranged in the inner barrel, the top cover of the inner barrel is provided with an inner barrel cover, and the fixed end of the first motor is provided with On the inner barrel cover, the output end of the first motor is connected with the inner barrel stirring device, the inner barrel cover is provided with a first feed port, and the first feed port is covered with a first seal cover;

The top of the outer barrel is provided with an outer barrel cover, the outer barrel cover is rotatably connected with the outer barrel, the outer barrel cover is annular, the inner side wall of the outer barrel cover is provided with inner teeth, and the first The fixed end of the second motor is arranged on the inner barrel cover, the output end of the second motor is connected with an external gear meshing with the inner teeth, and the outer barrel stirring device is provided with a plurality of and along the outer barrel The circumferential interval of the cover is arranged on the outer barrel cover, the outer barrel cover is provided with a second feeding port, the lower part of the outer barrel is provided with a discharging port, and the second feeding port is covered with has a second cover;

The inner barrel stirring device comprises a first rotating shaft and a plurality of first stirring blades arranged on the first rotating shaft, and the upper end of the first rotating shaft is connected with the first motor;

The outer barrel stirring device comprises a second rotating shaft and a plurality of second stirring blades arranged on the first rotating shaft, and the upper end of the second rotating shaft is connected with the outer barrel cover;

The feeding device includes a feeding pipe, a screw rod and a third motor, the feeding pipe is erected on the bottom surface of the outer barrel, and a feed pipe is formed between the feeding pipe and the bottom surface of the outer barrel. The conveying channel for material conveying, the top of the conveying pipe is connected with the bottom of the inner barrel, the screw rod is arranged in the conveying barrel, the output shaft of the third motor is connected to one end of the screw rod connect;

The discharging device includes a baffle plate, a top plate, a concave seat and a hydraulic cylinder, the concave seat is fixed on the bottom of the outer barrel, the hydraulic cylinder is fixed on the inner bottom surface of the concave seat, and the hydraulic cylinder The output end of the top plate is connected with the top plate and drives the top plate to move up and down. A telescopic guide column is arranged between the top plate and the base. The upper surface of the top plate is connected with the baffle plate through a column. The bottom of the barrel is provided with an avoidance hole, the avoidance hole is located below the material conveying pipe, the baffle is matched with the avoidance hole in shape, and the baffle is arranged in the avoidance hole so as to be movable up and down. The fixed end of the third motor is arranged on the baffle, the thickness of the baffle is larger than the hole height of the avoidance hole, and the area of the baffle is larger than the area of the feeding pipe;

The controller is electrically connected to the first motor, the second motor, the third motor and the hydraulic cylinder, respectively.

As a preferred solution of the present invention, the first stirring blade is provided with multiple layers along the axial direction of the first rotating shaft, and each layer of the first stirring blade includes a plurality of layers disposed along the circumferential direction of the first rotating shaft of the first transverse blade.

As a preferred solution of the present invention, the second stirring blade is provided with multiple layers along the axial direction of the second rotating shaft, and each layer of the second stirring blade includes a plurality of layers disposed along the circumferential direction of the second rotating shaft of the second transverse blade.

As a preferred solution of the present invention, the first transverse blade is provided with a plurality of first vertical blades, and the first transverse blade and the first vertical blade are perpendicular to each other.

As a preferred solution of the present invention, a plurality of second vertical blades are provided on the second transverse blades, and the second transverse blades and the second vertical blades are perpendicular to each other.

As a preferred solution of the present invention, a sealing ring is provided between the baffle plate and the escape hole.

As a preferred solution of the present invention, the water inlet of the first water passage, the water inlet of the second water passage and the water inlet of the third water passage are all provided with water valves for controlling the interruption of water flow. A water valve is electrically connected to the controller.

As a preferred solution of the present invention, the bottom surface of the outer tub is provided with a plurality of supporting feet.

As a preferred solution of the present invention, the feed pipe is connected to the outer barrel through a bracket.

Compared with the prior art, a polyurethane foaming device according to the embodiment of the present invention has the following beneficial effects:

When in use, the first raw material and the second raw material are poured into the inner barrel through the first feeding port, the third raw material is poured into the outer barrel through the second feeding port, and the controller controls the first motor to turn on, the second motor, the third The three motors and the hydraulic cylinder are turned off, and the inner barrel stirring device performs initial stirring and mixing of the first raw material and the second raw material. When the stirring time reaches the set time, the controller controls the second motor, the third motor and the hydraulic cylinder to turn on respectively, so that the inner barrel is turned on. The material after the initial mixing enters the conveying pipe, and the second mixing is carried out, so that the first and second raw materials are mixed more evenly, and the material after the second mixing is transported downward. At the same time, the push rod of the hydraulic cylinder shrinks. The top plate is driven to move downward, and the baffle plate is driven to move downward, so that the material after secondary mixing flows into the outer barrel through the conveying channel. The second raw material and the third raw material are stirred and mixed, and after the mixing is completed, it is output from the discharge port to complete the automatic stirring and mixing of the first raw material, the second raw material and the third raw material. The controller controls the push rod of the hydraulic cylinder to extend to make the output The material channel is closed, and the first motor, the second motor and the third motor are controlled to be closed;

Therefore, in the present invention, the first raw material and the second raw material are stirred and mixed twice, and then the mixed material of the first raw material and the second raw material and the third raw material are stirred and mixed to make the first raw material and the second raw material. It is mixed with the third raw material in sequence, which effectively prevents the reactions of the three from interacting with each other, improves the quality of the finished product, and also improves the mixing uniformity of the first raw material and the second raw material. In addition, the present invention can also be used for two kinds of raw materials. mixing, so as to achieve three mixing of the two raw materials.

Description of drawings

1 is a schematic structural diagram of a polyurethane foaming device with a cleaning function provided by an embodiment of the present invention when it is in use;

2 is a schematic structural diagram of a polyurethane foaming device with a cleaning function provided in an embodiment of the present invention when it is in an idle state;

In the figure, 1, the inner barrel; 2, the outer barrel; 3, the first motor; 4, the second motor; 5, the inner barrel cover; 6, the first cover; 7, the outer barrel cover; 8, the outer gear; 9, the feet ; 10, the first rotating shaft; 11, the first stirring blade; 12, the feeding pipe; 13, the screw rod; 14, the third motor; 15, the feeding channel; seat; 19, hydraulic cylinder; 20, telescopic guide column; 21, column; 22, second rotating shaft; 23, second stirring blade; 24, first vertical blade; 25, second vertical blade.

detailed description

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", "lateral", The orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description The present invention and simplified description do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

As shown in Figures 1 and 2, a preferred embodiment of a polyurethane foaming device of the present invention includes an inner barrel 1, an outer barrel 2, a feeding device, an inner barrel stirring device, an outer barrel stirring device, a first motor 3, The second motor 4 and the controller.

The inner barrel 1 is arranged on the top of the feeding device, the inner cavity of the inner barrel 1 is communicated with the feeding device, and the feeding device is erected in the outer barrel 2, wherein the feeding The material pipe 12 is connected to the outer barrel 2 through a bracket, the outer barrel 2 is provided with a discharge device for controlling the on-off of the discharge port of the feeding device, and the inner barrel stirring device is arranged in the inner barrel. 1, the top cover of the inner barrel 1 is provided with an inner barrel cover 5, the fixed end of the first motor 3 is arranged on the inner barrel cover 5, and the output end of the first motor 3 is connected to the inner barrel stirring device , the inner barrel cover 5 is provided with a first feeding port, and the first feeding port is covered with a first sealing cover 6; wherein, the feeding pipe 12 is connected with the outer barrel 2 through a right-angle frame .

The top of the outer tub 2 is provided with an outer tub cover 7, which is rotatably connected with the outer tub 2, the outer tub cover 7 is annular, and the inner side wall of the outer tub cover 7 is provided with Internal teeth, the fixed end of the second motor 4 is set on the inner barrel cover 5, the output end of the second motor 4 is connected with an external gear 8 that meshes with the internal teeth, the outer barrel stirring device There are a plurality of and are arranged on the outer barrel cover 7 at intervals along the circumferential direction of the outer barrel cover 7. Preferably, the outer barrel stirring devices are evenly distributed with four, and the outer barrel cover 7 is provided with The second feeding port, the lower part of the outer barrel 2 is provided with a discharging port, and the second feeding port is covered with a second cover; wherein, the bottom surface of the outer barrel 2 is provided with a plurality of legs 9 Therefore, the external gear 8 is driven by the second motor 4 to rotate, thereby driving the outer tub cover 7 to rotate, the transmission is stable, the buffering and vibration absorption are stable, the structure is simple, the cost is low, and the use and maintenance are convenient.

The inner barrel stirring device includes a first rotating shaft 10 and a plurality of first stirring blades 11 arranged on the first rotating shaft 10, and the upper end of the first rotating shaft 10 is connected with the first motor 3; The outer tub stirring device includes a second rotating shaft 22 and a plurality of second stirring blades 23 arranged on the first rotating shaft 10 , and the upper end of the second rotating shaft 22 is connected to the outer tub cover 7 .

The feeding device includes a feeding pipe 12 , a screw rod 13 and a third motor 14 . The feeding pipe 12 is erected on the bottom surface of the outer barrel 2 . A conveying channel 15 for material conveying is formed between the bottom surfaces, the top of the conveying pipe 12 is connected with the bottom of the inner barrel 1, the screw rod 13 is arranged in the conveying barrel, the third The output shaft of the motor 14 is connected to one end of the screw rod 13; thus, through the setting of the feeding device, the material in the inner barrel 1 can flow smoothly into the outer barrel 2, avoiding the The pressure difference causes the phenomenon that the material in the inner barrel 1 cannot flow, and at the same time, it can prevent the material in the outer barrel 2 from flowing into the inner barrel 1, so that the material can only flow in one direction.

The discharging device includes a baffle 16 , a top plate 17 , a concave seat 18 and a hydraulic cylinder 19 , the concave seat 18 is fixed on the bottom of the outer tub 2 , and the hydraulic cylinder 19 is fixed on the concave seat 18 The output end of the hydraulic cylinder 19 is connected to the top plate 17 and drives the top plate 17 to move up and down. A telescopic guide post 20 is provided between the top plate 17 and the base. The upper surface is connected to the baffle 16 through the upright column 21 , and the bottom of the outer barrel 2 is provided with an avoidance hole, and the avoidance hole is located below the material conveying pipe 12 . The baffle 16 and the avoidance hole shape In cooperation, the baffle plate 16 can be moved up and down in the avoidance hole, the fixed end of the third motor 14 is disposed on the baffle plate 16, and the thickness of the baffle plate 16 is greater than the thickness of the avoidance hole. The hole height is high, and the area of the baffle plate 16 is larger than the area of the material conveying pipe 12; thus, through the setting of the hydraulic cylinder 19, the on-off of the material conveying passage 15 is controlled, so that the material compartments of the inner barrel 1 are kept in small quantities for many times. into the outer barrel 2 to further improve the uniformity of material mixing; through the setting of the telescopic guide post 20, the top plate 17 moves more smoothly and the force is more uniform; through the setting of the upright post 21, the baffle 16 moves more smoothly.

The controller is electrically connected to the first motor 3 , the second motor 4 , the third motor 14 and the hydraulic cylinder 19 respectively.

Exemplarily, the first stirring blade 11 is provided with multiple layers along the axial direction of the first rotating shaft 10 , and each layer of the first stirring blade 11 includes a plurality of layers along the circumferential direction of the first rotating shaft 10 . The first transverse blade provided, the first transverse blade is provided with a plurality of first vertical blades 24, the first transverse blade and the first vertical blade 24 are perpendicular to each other; the second stirring blade 23 The axial direction of the second rotating shaft 22 is provided with multiple layers, and each layer of the second stirring blade 23 includes a plurality of second transverse blades arranged along the circumferential direction of the second rotating shaft 22. The second transverse blades There are a plurality of second vertical blades 25 on it, and the second transverse blades and the second vertical blades 25 are perpendicular to each other; this design enables the stirring blades to mix the materials axially and circumferentially, so that the materials can be mixed more fully.

Exemplarily, a sealing ring is provided between the baffle 16 and the avoidance hole to prevent material from seeping out from the gap between the baffle 16 and the avoidance hole.

Exemplarily, the water inlet of the first water passage, the water inlet of the second water passage and the water inlet of the third water passage are all provided with water valves for controlling the flow of water. The controller is electrically connected; thus, the on-off of the water flow is automatically controlled, and the degree of manual labor is reduced.

When in use, the first raw material and the second raw material are poured into the inner barrel 1 through the first feeding port, the third raw material is poured into the outer barrel 2 through the second feeding port, the controller controls the first motor 3 to turn on, and the second raw material is turned on. The motor 4, the third motor 14 and the hydraulic cylinder 19 are turned off, and the inner barrel stirring device performs axial mixing and circumferential mixing of the first raw material and the second raw material, that is, the initial stirring and mixing, when the stirring time reaches the set time, the controller Control the second motor 4, the third motor 14 and the hydraulic cylinder 19 to open respectively, so that the materials after the initial mixing in the inner barrel 1 enter the feeding pipe 12, and perform the second stirring and mixing, so that the first raw material and the second raw material are mixed better. Evenly, the material after the secondary mixing is transported downward to prevent the material from the outer barrel 2 from entering the inner barrel 1. At the same time, the push rod of the hydraulic cylinder 19 shrinks to drive the top plate 17 to move down, and drives the baffle 16 to move down, so that the secondary The mixed material flows into the outer barrel 2 through the feeding channel 15, the second motor 4 drives the outer gear 8 to rotate, and drives the outer barrel cover 7 to rotate, so that the outer barrel stirring device axially mixes the second and third raw materials. And circumferential mixing, after the mixing is completed, it is output from the discharge port to complete the automatic stirring and mixing of the first raw material, the second raw material and the third raw material. The controller controls the push rod of the hydraulic cylinder 19 to extend to close the conveying channel 15. And the control controls the first motor 3, the second motor 4 and the third motor 14 to turn off.

Therefore, in the present invention, the first raw material and the second raw material are stirred and mixed twice, and then the mixed material of the first raw material and the second raw material and the third raw material are stirred and mixed, so that the first raw material and the second raw material are mixed. It is mixed with the third raw material in sequence, which can effectively prevent the interaction of the three reactions and improve the quality of the finished product. The raw materials are also mixed axially and circumferentially, so that the raw materials are fully mixed, and both the first raw material and the second raw material are improved. The uniformity of mixing, and through the setting of the hydraulic cylinder 19, the material in the material conveying pipe 12 enters the outer barrel 2 in small amounts for many times, which further improves the uniformity of material mixing; It is convenient to use and occupies a small space; in addition, the invention can also be used for the mixing of two raw materials, thereby realizing the three-time mixing of the two raw materials.

In the description of the present invention, it should be understood that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" in the present invention should be understood in a broad sense, for example, it may be a fixed connection, or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made. These improvements and replacements It should also be regarded as the protection scope of the present invention.

Claims

A polyurethane foaming equipment is characterized in that it comprises an inner barrel, an outer barrel, a feeding device, an inner barrel stirring device, an outer barrel stirring device, a first motor, a second motor and a controller;

The inner barrel is arranged on the top of the feeding device, the inner cavity of the inner barrel is communicated with the feeding device, the feeding device is erected in the outer barrel, and the outer barrel is provided with a A discharge device that controls the on-off of the discharge port of the feeding device, the inner barrel stirring device is arranged in the inner barrel, the top cover of the inner barrel is provided with an inner barrel cover, and the fixed end of the first motor is provided with On the inner barrel cover, the output end of the first motor is connected to the inner barrel stirring device, the inner barrel cover is provided with a first feed port, and the first feed port is covered with a first seal cover;

The top of the outer barrel is provided with an outer barrel cover, the outer barrel cover is rotatably connected with the outer barrel, the outer barrel cover is annular, the inner side wall of the outer barrel cover is provided with inner teeth, and the first The fixed end of the second motor is arranged on the inner barrel cover, the output end of the second motor is connected with an external gear meshing with the inner teeth, and the outer barrel stirring device is provided with a plurality of and along the outer barrel The circumferential interval of the cover is arranged on the outer barrel cover, the outer barrel cover is provided with a second feeding port, the lower part of the outer barrel is provided with a discharging port, and the second feeding port is covered with has a second cover;

The inner barrel stirring device comprises a first rotating shaft and a plurality of first stirring blades arranged on the first rotating shaft, and the upper end of the first rotating shaft is connected with the first motor;

The outer barrel stirring device comprises a second rotating shaft and a plurality of second stirring blades arranged on the first rotating shaft, and the upper end of the second rotating shaft is connected with the outer barrel cover;

The feeding device includes a feeding pipe, a screw rod and a third motor, the feeding pipe is erected on the bottom surface of the outer barrel, and a feed pipe is formed between the feeding pipe and the bottom surface of the outer barrel. The conveying channel for material conveying, the top of the conveying pipe is connected with the bottom of the inner barrel, the screw rod is arranged in the conveying barrel, the output shaft of the third motor is connected to one end of the screw rod connect;

The discharging device includes a baffle plate, a top plate, a concave seat and a hydraulic cylinder, the concave seat is fixed on the bottom of the outer barrel, the hydraulic cylinder is fixed on the inner bottom surface of the concave seat, and the hydraulic cylinder The output end of the top plate is connected with the top plate and drives the top plate to move up and down. A telescopic guide column is arranged between the top plate and the base. The upper surface of the top plate is connected with the baffle plate through a column. The bottom of the barrel is provided with an avoidance hole, the avoidance hole is located below the material conveying pipe, the baffle is matched with the avoidance hole in shape, and the baffle is arranged in the avoidance hole so as to be movable up and down. The fixed end of the third motor is arranged on the baffle, the thickness of the baffle is larger than the hole height of the avoidance hole, and the area of the baffle is larger than the area of the feeding pipe;

The controller is electrically connected to the first motor, the second motor, the third motor and the hydraulic cylinder, respectively.
The polyurethane foaming equipment according to claim 1, wherein the first stirring blade is provided with multiple layers along the axial direction of the first rotating shaft, and each layer of the first stirring blade includes a plurality of layers along the axial direction of the first rotating shaft. The first transverse vanes are arranged in the circumferential direction of the first rotating shaft.
The polyurethane foaming equipment according to claim 1, wherein the second stirring blade is provided with multiple layers along the axial direction of the second rotating shaft, and each layer of the second stirring blade includes a plurality of layers along the axial direction of the second rotating shaft. The second transverse vanes are arranged in the circumferential direction of the second rotating shaft.
The polyurethane foaming equipment according to claim 1, wherein a plurality of first vertical blades are provided on the first transverse blades, and the first transverse blades and the first vertical blades are perpendicular to each other.
The polyurethane foaming equipment according to claim 1, wherein a plurality of second vertical blades are provided on the second transverse blades, and the second transverse blades and the second vertical blades are perpendicular to each other.
The polyurethane foaming equipment according to claim 1, wherein a sealing ring is provided between the baffle plate and the escape hole.
The polyurethane foaming equipment according to claim 1, wherein the water inlet of the first water passage, the water inlet of the second water passage and the water inlet of the third water passage are all provided with a water inlet for controlling A water valve for shutting off water flow, the water valve is electrically connected with the controller.
The polyurethane foaming equipment according to claim 1, wherein a plurality of supporting feet are provided on the bottom surface of the outer tub.
The polyurethane foaming equipment according to claim 1, wherein the feeding pipe is connected with the outer barrel through a bracket.