CN112810022A - Device for producing breathable polyurethane elastomer foam material supporting pad - Google Patents
Device for producing breathable polyurethane elastomer foam material supporting pad Download PDFInfo
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- CN112810022A CN112810022A CN202110007525.8A CN202110007525A CN112810022A CN 112810022 A CN112810022 A CN 112810022A CN 202110007525 A CN202110007525 A CN 202110007525A CN 112810022 A CN112810022 A CN 112810022A
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- foaming
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- polyurethane elastomer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
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Abstract
The invention relates to the production field of polyurethane foaming materials, in particular to a device for producing a breathable polyurethane elastomer foaming material supporting pad, which comprises foaming equipment, wherein an observation window is arranged outside the foaming equipment, a heat exchange cavity is formed between an inner shell and an outer shell, a material guide groove and a vent hole are formed in a partition plate in the foaming equipment, and a gas channel is arranged at the upper part of the partition plate; the foaming equipment is divided into an upper cavity and a lower cavity by the partition plate, a telescopic motor in the upper cavity is connected with a rotating shaft through a rotating motor, a rotating mechanism consisting of a fixed shaft and blades is fixed on the rotating shaft, and the angles of the blades relative to the horizontal line are adjustable; the lower cavity body is internally provided with a roller group which consists of two rollers which are oppositely arranged and rotate in opposite directions and a fixing strip for fixing the rollers, and the angle of one end of the fixing strip for fixing the rollers is adjustable; the device also comprises a control mechanism, and a feeding mechanism and a curing mechanism which are electrically connected with the control mechanism. The device disclosed by the invention is uniform in foaming, good in effect, good in air permeability and high in automation degree.
Description
Technical Field
The invention relates to the field of production of polyurethane foam materials, in particular to a device for producing a breathable polyurethane elastomer foam material supporting pad.
Background
Polyurethane (PU) is a polyurethane, which is produced by mixing and processing isocyanate and polyether as main raw materials with proper additives through special equipment, and is a high molecular compound mainly classified into two categories of polyester and polyether. The polyurethane elastomer has the performance between that of plastic and rubber, has better stability, chemical resistance, rebound resilience and mechanical property, has smaller compression deformability, has good heat insulation, sound insulation, shock resistance and gas resistance, can be used for sofa furniture, pillows, cushions, toys, clothes and sound insulation linings, and becomes one of indispensable hot door materials.
In the process of producing the polyurethane elastomer foaming material, the control of a foaming process and a curing process is mainly performed, wherein the control of the foaming process is the key of the production. At present, the foaming process mainly obtains the change condition of the foam specific gravity through the change of the liquid level in the foaming process, so as to adjust and correct the density of the polyurethane foam, and obtain the corresponding foaming material. The foaming material obtained by the method is not uniform, has poor foaming effect and needs to be further improved in air permeability
Disclosure of Invention
In view of the above problems, the present invention aims to provide a device for producing a breathable polyurethane elastomer foam material support pad, which has the advantages of uniform foaming, good foaming effect, good ventilation effect, high production efficiency and high automation degree. In order to realize the purpose of the invention, the following technical scheme is adopted:
a device for producing ventilative polyurethane elastomer expanded material supporting pad includes:
the foaming device comprises an inner shell and an outer shell, a heat exchange cavity is formed between the inner shell and the outer shell, the bottom and the top of the heat exchange cavity are respectively connected with a first circulating pipeline, and the first circulating pipeline is connected with a heat exchanger; the side of the outside of the foaming equipment is provided with an observation window, the top of the foaming equipment is provided with an exhaust port, a partition plate is arranged in the foaming equipment, the center of the partition plate is provided with a guide chute, the upper surface of the partition plate is provided with a plurality of air holes, the upper part of the partition plate is provided with a hollow gas channel, one end of the gas channel is connected with an air inlet, the air inlet is connected with a gas storage tank through a pipeline, the partition plate divides the foaming equipment into an upper cavity and a lower cavity, the top surface in the upper cavity is provided with a telescopic motor, the movable end of the telescopic motor is connected with a rotating motor, the movable end of the rotating motor is connected with a rotating shaft, the rotating shaft is fixed with at least two groups of rotating mechanisms, each rotating mechanism comprises a fixed shaft and paddles, the paddle has a certain angle theta relative to a horizontal line, a roller group is arranged in the lower cavity and consists of two rollers which are arranged oppositely and fixing strips which are used for fixing the two rollers respectively, the two rollers rotate in opposite directions, a gap between the two rollers corresponds to the material guide groove, one end of each fixing strip is fixed on the side wall of the lower cavity, the other end of each fixing strip is fixed at the center of the corresponding roller, and the angle of one end of each fixing strip for fixing the corresponding roller is adjustable;
the feeding mechanism comprises a feeding port A, a feeding port B, a feeding port and a discharging port, wherein the feeding port A, the feeding port B and the feeding port are all arranged at the top of the foaming equipment, the discharging port is arranged at the bottom of the foaming equipment, the feeding port A is connected to the liquid storage tank A through a pipeline, a control valve A is arranged on the pipeline connecting the feeding port A and the liquid storage tank A, the feeding port B is connected to the liquid storage tank B through a pipeline, and a control valve B is arranged on the pipeline connecting the feeding port B and the liquid storage tank B;
the curing mechanism comprises curing equipment, the curing equipment is connected to the discharge port through a pipeline, a control valve C is arranged on the pipeline connecting the discharge port and the curing equipment, and the curing equipment is connected to the steam generating device through a second circulating pipeline; and
control mechanism, control mechanism includes temperature sensor A, temperature sensor B and controller, temperature sensor A sets up in last cavity, temperature sensor B sets up in cavity down, the controller comprises display and control button, display and temperature sensor A, temperature sensor B electric connection, control button and flexible motor, rotating electrical machines, curing equipment, steam generator, heat exchanger, rotary mechanism, roller train, control valve A, control valve B and control valve C electric connection.
Preferably, the rotating directions of the two adjacent rotating mechanisms are the same, the rotating speeds of the two adjacent rotating mechanisms are different, and the blades are adjusted relative to the horizontal line angle in a matching manner, so that certain shearing stress is provided in the foaming process, and the foaming effect is better.
Preferably, the rotating directions of two adjacent rotating mechanisms are opposite, and the blades are matched for adjusting the angle relative to the horizontal line, so that certain shearing stress is provided in the foaming process, and the foaming effect is better.
Preferably, the rotating mechanisms are provided with two groups, and the rotating mechanisms are respectively a first rotating mechanism and a second rotating mechanism.
Preferably, the first rotating mechanism is composed of a plurality of first fixed shafts and first paddles, and the second rotating mechanism is composed of a plurality of second fixed shafts and second paddles, so that the structure is simple and the effect is good.
Preferably, the number of the first fixed shafts and the number of the first blades are 4, and the structures of the first fixed shafts and the structures of the first blades are uniformly distributed on the rotating shaft in a circumferential manner; the number of the second fixed shafts and the number of the second blades are 4, and the structures of the second fixed shafts and the structures of the second blades are circumferentially and uniformly distributed on the rotating shaft.
Preferably, the observation window is provided with transparent glass, so that the observation of the foaming liquid level is facilitated, and the regulation and control of the primary foaming process are carried out.
Preferably, the air holes are one of square, round or diamond.
Preferably, the air holes are uniformly distributed on the upper surface of the partition plate in a circumferential manner, so that the foaming is uniform.
Preferably, the blade is at an angle θ of 30-60 ° with respect to horizontal.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention is provided with foaming equipment, the foaming equipment is divided into an upper cavity and a lower cavity by a partition plate, a telescopic motor, a rotating motor and a plurality of groups of rotating mechanisms fixed on the rotating motor are arranged in the upper cavity, blades in the rotating mechanisms have adjustable angles relative to a horizontal line and can provide certain shearing stress, raw materials can be stirred and mixed uniformly under the action of the rotating mechanisms in the upper cavity, the foaming effect is good, and air holes in the partition plate can introduce gas into the foaming reaction on the upper cavity, so that the foaming rate of the materials is improved, and the foaming is promoted to be uniform.
(2) The height of the foaming surface of the material in the upper cavity is observed through an observation window on the surface of the foaming equipment, and the primary foaming process is regulated and controlled to obtain a foaming material with a certain density; the roller group is arranged in the lower cavity, the angle of one end of the fixing strip for fixing the rollers is adjusted, and the purpose of adjusting the distance between the two rollers is achieved, so that the extrusion force of the two rollers on the material is changed, partial bubbles in the foaming material are removed, the purpose of controlling the density of the foaming material is achieved, and the foaming material with better foaming effect is obtained through twice regulation.
(3) The invention is provided with the control mechanism, and the feeding mechanism and the curing mechanism which are electrically connected with the control mechanism, thereby improving the automation degree of the device and the production efficiency.
Drawings
Fig. 1 is a schematic structural view of the whole of the apparatus for producing the air-permeable polyurethane elastomer foam material support pad of the present invention;
FIG. 2 is a schematic view of the internal structure of the foaming apparatus according to embodiment 1/embodiment 2 of the present invention;
FIG. 3 is a schematic view of the external structure of the foaming apparatus of the present invention;
wherein, 1-foaming equipment, 2-liquid storage tank A, 3-liquid storage tank B, 4-curing equipment, 5-steam generating device, 6-heat exchanger, 7-gas storage tank, 8-inner shell, 9-outer shell, 10-heat exchange cavity, 11-first circulation pipeline, 12-feed inlet A, 1201-control valve A, 13-feed inlet B, 1301-control valve B, 14-exhaust port, 15-telescopic motor, 16-rotating shaft, 17-rotating mechanism, 171-first rotating mechanism, 1711-first fixed shaft, 1712-first blade, 172-second rotating mechanism, 1721-second fixed shaft, 1722-second blade, 18-partition plate, 19-upper cavity, 20-lower cavity, 21-gas channel, 22-air inlet, 23-air vent, 24-roller group, 25-roller, 26-fixed strip, 27-discharge port, 28-control valve C, 29-observation window, 30-controller, 31-feed port, 32-rotating motor, 33-guide chute, 34-second circulating pipeline, 35-temperature sensor A, 36-temperature sensor B.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Detailed description of the preferred embodiment 1
Fig. 1 is a schematic overall structure diagram of an apparatus for producing a breathable polyurethane elastomer foam material support pad according to the present invention, and as can be seen from fig. 2 and 3, the apparatus for producing a breathable polyurethane elastomer foam material support pad according to the present invention includes a foaming device 1 composed of an inner shell 8 and an outer shell 9, a heat exchange cavity 10 is formed between the inner shell 8 and the outer shell 9, the bottom and the top of the heat exchange cavity 10 are respectively connected with a first circulation pipe 11, and a heat exchanger 6 is connected to the first circulation pipe 11, water in the heat exchanger enters from the bottom of the foaming device, is discharged from the top of the foaming device, and forms a circulating loop through the heat exchanger to achieve circulating heat exchange; an observation window 29 is arranged on the side surface outside the foaming device 1, transparent glass is arranged on the observation window 29, so that the liquid level in the foaming device can be observed conveniently, an exhaust port 14 is arranged at the top of the foaming device 1, a partition plate 18 is arranged in the foaming device 1, a material guide groove 33 is arranged in the center of the partition plate 18, a plurality of square air holes 23 are formed in the partition plate 18, the air holes 23 are uniformly distributed on the upper surface of the partition plate 18 in a circumferential mode, the upper part of the partition plate 18 is provided with a hollow gas channel 21, one end of the hollow gas channel is connected with an air inlet 22, the air inlet 22 is connected with a gas storage tank 7 through a pipeline, air or inert gas in the gas storage tank is used for providing gas for the gas; the partition plate 18 divides the foaming device 1 into an upper cavity 19 and a lower cavity 20, a telescopic motor 15 is arranged on the top surface in the upper cavity 19, the movable end of the telescopic motor is connected with a rotating motor 32, the movable end of the rotating motor 32 is connected with a rotating shaft 16, two groups of rotating mechanisms 17 are fixed on the rotating shaft 16 and are respectively a first rotating mechanism 171 and a second rotating mechanism 172, wherein the first rotating mechanism 171 is composed of a structure of 4 first fixed shafts 1711 and first blades 1712 which are uniformly distributed on the rotating shaft 16 in a circumferential mode, one end of each first fixed shaft 1711 is fixed on the rotating shaft 16, the first blades 1712 are arranged on the fixed shafts, and the angle theta of each blade relative to the horizontal line is 30 degrees; the second rotating mechanism 172 is composed of 4 second fixed shafts 1721 and second paddles 1722 which are circumferentially and uniformly distributed on the rotating shaft 16, one end of each second fixed shaft 1711 is fixed on the rotating shaft 16, the second paddles 1712 are arranged on the fixed shafts, and the angle of each paddle relative to the horizontal line is adjustable; in this embodiment, the first rotating mechanism 171 and the second rotating mechanism 172 have the same rotating direction, and the first rotating mechanism 171 and the second rotating mechanism 172 have different rotating speeds, so that the different rotating speeds can provide a certain shearing stress for the liquid driven by the different rotating mechanisms, thereby achieving good foaming and uniformly mixing effects, improving the foaming uniformity of the foaming material, and improving the product performance; a roller set 24 is disposed in the lower cavity 20, the roller set 24 is composed of two rollers 25 disposed opposite to each other and a fixing strip 26 for respectively fixing the two rollers 25, the two rollers 25 rotate in opposite directions, and a gap between the two rollers 25 corresponds to the material guiding groove 33, wherein one end of the fixing strip 26 is fixed on the side wall of the lower cavity 20, the other end is fixed at the center of the roller 25, and an angle at which the fixing strip 26 fixes one end of the roller 25 is adjustable, so that the distance between the two rollers can be conveniently adjusted to provide different extrusion forces, thereby controlling the density of the foaming material as required.
Still include feeding mechanism, this feeding mechanism includes feed inlet A12, feed inlet B13, charge door 31 and discharge gate 27, wherein, feed inlet A12, feed inlet B13 and charge door 31 all set up in the top of foaming equipment 1, discharge gate 27 sets up the bottom at foaming equipment 1, this feed inlet A12 passes through pipe connection in liquid storage pot A2, and be equipped with control valve A1201 on the pipeline that feed inlet A12 and liquid storage pot A2 are connected, feed inlet B13 passes through pipe connection in liquid storage pot B3, and be equipped with control valve B1301 on the pipeline that feed inlet B13 and liquid storage pot B3 are connected.
The hot-press forming device further comprises a curing mechanism with curing equipment 4, the curing equipment 4 is connected to the discharge port 27 through a pipeline, a control valve C28 is arranged on the pipeline connecting the discharge port 27 and the curing equipment 4, the curing equipment 4 is connected to the steam generating device 5 through the second circulating pipeline 34, and hot steam can be provided for the inside of the curing equipment through the steam generating device and the pressure inside the curing equipment is increased, so that the purpose of hot-press forming is achieved.
The automatic control system further comprises a control mechanism consisting of a temperature sensor A35, a temperature sensor B36 and a controller 30, wherein the temperature sensor A35 is arranged in the upper cavity 19, the temperature sensor B36 is arranged in the lower cavity 20, the controller 30 consists of a display and a control button, the display is electrically connected with the temperature sensor A35 and the temperature sensor B36, and the control button is electrically connected with the telescopic motor 15, the rotating motor 32, the curing equipment 4, the steam generating device 5, the heat exchanger 6, the rotating mechanism 17, the roller group 24, the control valve A1201, the control valve B1301 and the control valve C28, so that the purpose of automatic control is achieved, and the automation degree of the production equipment is improved.
Specific example 2
Fig. 1 is a schematic overall structure diagram of an apparatus for producing a breathable polyurethane elastomer foam material support pad according to the present invention, and as can be seen from fig. 2 and 3, the apparatus for producing a breathable polyurethane elastomer foam material support pad according to the present invention includes a foaming device 1 composed of an inner shell 8 and an outer shell 9, a heat exchange cavity 10 is formed between the inner shell 8 and the outer shell 9, the bottom and the top of the heat exchange cavity 10 are respectively connected with a first circulation pipe 11, and a heat exchanger 6 is connected to the first circulation pipe 11, water in the heat exchanger enters from the bottom of the foaming device, is discharged from the top of the foaming device, and forms a circulating loop through the heat exchanger to achieve circulating heat exchange; an observation window 29 is arranged on the side surface outside the foaming device 1, transparent glass is arranged on the observation window 29, so that the liquid level in the foaming device can be observed conveniently, an exhaust port 14 is arranged at the top of the foaming device 1, a partition plate 18 is arranged in the foaming device 1, a material guide groove 33 is arranged in the center of the partition plate 18, a plurality of circular air holes 23 are formed in the partition plate 18, the air holes 23 are uniformly distributed on the upper surface of the partition plate 18 in a circumferential mode, the upper part of the partition plate 18 is provided with a hollow gas channel 21, one end of the hollow air channel is connected with an air inlet 22, the air inlet 22 is connected with a gas storage tank 7 through a pipeline, air or inert gas in the gas storage tank is used for providing gas for the gas; the foaming device 1 is divided into an upper cavity 19 and a lower cavity 20 by a partition plate 18, a telescopic motor 15 is arranged on the top surface in the upper cavity 19, the movable end of the telescopic motor is connected with a rotating motor 32, the movable end of the rotating motor 32 is connected with a rotating shaft 16, two groups of rotating mechanisms 17 are fixed on the rotating shaft 16 and are respectively a first rotating mechanism 171 and a second rotating mechanism 172, wherein the first rotating mechanism 171 is composed of 4 structures of a first fixed shaft 1711 and a first blade 1712 which are uniformly distributed on the rotating shaft 16 in a circumferential mode, one end of the first fixed shaft 1711 is fixed on the rotating shaft 16, the first blade 1712 is arranged on the fixed shaft, and the angle of each blade relative to the horizontal line is adjustable; the second rotating mechanism 172 is composed of 4 second fixed shafts 1721 and second paddles 1722 which are circumferentially and uniformly distributed on the rotating shaft 16, one end of each second fixed shaft 1711 is fixed on the rotating shaft 16, the second paddles 1712 are arranged on the fixed shafts, and the angle theta of each paddle relative to the horizontal line is 60 degrees; in this embodiment, the first rotating mechanism 171 and the second rotating mechanism 172 have opposite rotating directions, so as to provide a certain shear stress for the liquid driven by different rotating mechanisms, thereby achieving good foaming and uniformly mixing effects, improving the foaming uniformity of the foaming material, and improving the product performance; a roller set 24 is disposed in the lower cavity 20, the roller set 24 is composed of two rollers 25 disposed opposite to each other and a fixing strip 26 for respectively fixing the two rollers 25, the two rollers 25 rotate in opposite directions, and a gap between the two rollers 25 corresponds to the material guiding groove 33, wherein one end of the fixing strip 26 is fixed on the side wall of the lower cavity 20, the other end is fixed at the center of the roller 25, and an angle at which the fixing strip 26 fixes one end of the roller 25 is adjustable, so that the distance between the two rollers can be conveniently adjusted to provide different extrusion forces, thereby controlling the density of the foaming material as required.
Still include feeding mechanism, this feeding mechanism includes feed inlet A12, feed inlet B13, charge door 31 and discharge gate 27, wherein, feed inlet A12, feed inlet B13 and charge door 31 all set up in the top of foaming equipment 1, discharge gate 27 sets up the bottom at foaming equipment 1, this feed inlet A12 passes through pipe connection in liquid storage pot A2, and be equipped with control valve A1201 on the pipeline that feed inlet A12 and liquid storage pot A2 are connected, feed inlet B13 passes through pipe connection in liquid storage pot B3, and be equipped with control valve B1301 on the pipeline that feed inlet B13 and liquid storage pot B3 are connected.
The hot-press forming device further comprises a curing mechanism with curing equipment 4, the curing equipment 4 is connected to the discharge port 27 through a pipeline, a control valve C28 is arranged on the pipeline connecting the discharge port 27 and the curing equipment 4, the curing equipment 4 is connected to the steam generating device 5 through the second circulating pipeline 34, and hot steam can be provided for the inside of the curing equipment through the steam generating device and the pressure inside the curing equipment is increased, so that the purpose of hot-press forming is achieved.
The automatic control system further comprises a control mechanism consisting of a temperature sensor A35, a temperature sensor B36 and a controller 30, wherein the temperature sensor A35 is arranged in the upper cavity 19, the temperature sensor B36 is arranged in the lower cavity 20, the controller 30 consists of a display and a control button, the display is electrically connected with the temperature sensor A35 and the temperature sensor B36, and the control button is electrically connected with the telescopic motor 15, the rotating motor 32, the curing equipment 4, the steam generating device 5, the heat exchanger 6, the rotating mechanism 17, the roller group 24, the control valve A1201, the control valve B1301 and the control valve C28, so that the purpose of automatic control is achieved, and the automation degree of the production equipment is improved.
Specific example 3
Fig. 1 is a schematic overall structure diagram of an apparatus for producing a breathable polyurethane elastomer foam material support pad according to the present invention, which includes a foaming device 1 composed of an inner shell 8 and an outer shell 9, a heat exchange cavity 10 is formed between the inner shell 8 and the outer shell 9, the bottom and the top of the heat exchange cavity 10 are respectively connected to a first circulation pipe 11, and the first circulation pipe 11 is connected to a heat exchanger 6, water in the heat exchanger enters from the bottom of the foaming device, is discharged from the top of the foaming device, and forms a circulation loop through the heat exchanger, so as to achieve circulation heat exchange; an observation window 29 is arranged on the side surface outside the foaming device 1, transparent glass is arranged on the observation window 29, so that the liquid level in the foaming device can be observed conveniently, an exhaust port 14 is arranged at the top of the foaming device 1, a partition plate 18 is arranged in the foaming device 1, a material guide groove 33 is arranged in the center of the partition plate 18, a plurality of rhombic air holes 23 are formed in the partition plate 18, the air holes 23 are uniformly distributed on the upper surface of the partition plate 18 in a circumferential mode, the upper part of the partition plate 18 is provided with a hollow gas channel 21, one end of the hollow gas channel is connected with an air inlet 22, the air inlet 22 is connected with a gas storage tank 7 through a pipeline, air or inert gas in the gas storage tank is used for providing gas for the gas; the foaming device 1 is divided into an upper cavity 19 and a lower cavity 20 by a partition plate 18, a telescopic motor 15 is arranged on the top surface in the upper cavity 19, the movable end of the telescopic motor is connected with a rotating motor 32, the movable end of the rotating motor 32 is connected with a rotating shaft 16, three groups of rotating mechanisms 17 are fixed on the rotating shaft 16, each rotating mechanism 17 is composed of 4 groups of fixed shafts and blade structures which are uniformly distributed in the circumference, one end of each fixed shaft is fixed on the rotating shaft 16, the blades are arranged on the fixed shafts, and the angle theta of each blade relative to the horizontal line is 45 degrees; in this embodiment, the two adjacent rotating mechanisms 17 have the same rotating direction and different rotating speeds, so as to provide a certain shearing stress for the liquid driven by the different rotating mechanisms, thereby achieving good foaming and uniformly mixing effects, improving the foaming uniformity of the foaming material, and improving the product performance; a roller set 24 is disposed in the lower cavity 20, the roller set 24 is composed of two rollers 25 disposed opposite to each other and a fixing strip 26 for respectively fixing the two rollers 25, the two rollers 25 rotate in opposite directions, and a gap between the two rollers 25 corresponds to the material guiding groove 33, wherein one end of the fixing strip 26 is fixed on the side wall of the lower cavity 20, the other end is fixed at the center of the roller 25, and an angle at which the fixing strip 26 fixes one end of the roller 25 is adjustable, so that the distance between the two rollers can be conveniently adjusted to provide different extrusion forces, thereby controlling the density of the foaming material as required.
Still include feeding mechanism, this feeding mechanism includes feed inlet A12, feed inlet B13, charge door 31 and discharge gate 27, wherein, feed inlet A12, feed inlet B13 and charge door 31 all set up in the top of foaming equipment 1, discharge gate 27 sets up the bottom at foaming equipment 1, this feed inlet A12 passes through pipe connection in liquid storage pot A2, and be equipped with control valve A1201 on the pipeline that feed inlet A12 and liquid storage pot A2 are connected, feed inlet B13 passes through pipe connection in liquid storage pot B3, and be equipped with control valve B1301 on the pipeline that feed inlet B13 and liquid storage pot B3 are connected.
The hot-press forming device further comprises a curing mechanism with curing equipment 4, the curing equipment 4 is connected to the discharge port 27 through a pipeline, a control valve C28 is arranged on the pipeline connecting the discharge port 27 and the curing equipment 4, the curing equipment 4 is connected to the steam generating device 5 through the second circulating pipeline 34, and hot steam can be provided for the inside of the curing equipment through the steam generating device and the pressure inside the curing equipment is increased, so that the purpose of hot-press forming is achieved.
The automatic control system further comprises a control mechanism consisting of a temperature sensor A35, a temperature sensor B36 and a controller 30, wherein the temperature sensor A35 is arranged in the upper cavity 19, the temperature sensor B36 is arranged in the lower cavity 20, the controller 30 consists of a display and a control button, the display is electrically connected with the temperature sensor A35 and the temperature sensor B36, and the control button is electrically connected with the telescopic motor 15, the rotating motor 32, the curing equipment 4, the steam generating device 5, the heat exchanger 6, the rotating mechanism 17, the roller group 24, the control valve A1201, the control valve B1301 and the control valve C28, so that the purpose of automatic control is achieved, and the automation degree of the production equipment is improved.
In the using process, the first circulating pipeline is firstly opened, and the foaming equipment is preheated through the heat exchange cavity; then opening the control valve A and the control valve B to add raw materials into an upper cavity of foaming equipment, starting the telescopic motor to enable the rotating mechanism to be close to the partition plate so as to fully stir the raw materials, then starting the rotating motor to stir the raw materials, and simultaneously opening the gas storage tank to enable gas to uniformly enter the upper cavity through the gas inlet and the gas holes on the surface of the gas channel of the partition plate, so that the foaming efficiency of a foaming process is improved, and the gas is finally discharged from the gas outlet; then, observing the height of the foaming surface of the material in the upper cavity through an observation window, regulating and controlling a primary foaming process to obtain a foaming material with a certain density, then opening a guide chute to enable the raw material to enter the lower cavity at a certain speed, and regulating the angle of one end of a fixing strip to achieve the purpose of regulating the distance between two rollers, thereby changing the extrusion force of the two rollers on the material, removing partial bubbles in the foaming material to achieve the purpose of controlling the density of the foaming material, and obtaining the foaming material with a better foaming effect through the two times of regulation and control; and finally, opening the control valve C to enable the foamed material to enter curing equipment from a pipeline, performing heating and pressurizing operation on the curing equipment through a steam generating device, and then cooling and demolding to obtain the final foamed breathable polyurethane elastomer foamed material supporting pad product.
The foaming device is provided with the foaming device, the foaming device is divided into an upper cavity and a lower cavity by the partition plate in the foaming device, the telescopic motor, the rotating motor and the plurality of groups of rotating mechanisms fixed on the rotating motor are arranged in the upper cavity, the angle of the paddle in the rotating mechanism relative to the horizontal line is adjustable, certain shear stress can be provided, raw materials can be stirred and mixed uniformly under the action of the rotating mechanisms in the upper cavity, the foaming effect is good, and gas can be introduced into the foaming reaction on the upper cavity through the air holes in the partition plate, so that the foaming rate of the materials is improved, and uniform foaming is promoted; an observation window on the surface of the foaming equipment observes the height of the foaming surface of the material in the upper cavity, the primary foaming process is regulated and controlled to obtain a foaming material with a certain density, a roller group is arranged in the lower cavity, and the angle of one end of a fixing strip for fixing the rollers is regulated to achieve the purpose of regulating the distance between the two rollers, so that the extrusion force of the two rollers on the material is changed, partial bubbles in the foaming material are removed, the purpose of controlling the density of the foaming material is achieved, and the foaming material with better foaming effect is obtained through two times of regulation and control; the control mechanism, the feeding mechanism and the curing mechanism are arranged and electrically connected with the control mechanism, so that the automation degree of the device is improved, and the production efficiency is improved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can understand that the changes or modifications within the technical scope of the present invention are included in the scope of the present invention, and therefore, the scope of the present invention should be subject to the protection scope of the claims.
Claims (10)
1. A device for producing ventilative polyurethane elastomer expanded material supporting pad, its characterized in that: the method comprises the following steps:
the foaming device (1) is composed of an inner shell (8) and an outer shell (9), a heat exchange cavity (10) is formed between the inner shell (8) and the outer shell (9), the bottom and the top of the heat exchange cavity (10) are respectively connected with a first circulating pipeline (11), and the first circulating pipeline (11) is connected with a heat exchanger (6); an observation window (29) is arranged on the side surface outside the foaming equipment (1), an exhaust port (14) is arranged at the top of the foaming equipment (1), a partition plate (18) is arranged in the foaming equipment (1), a guide chute (33) is arranged in the center of the partition plate (18), a plurality of air holes (23) are formed in the upper surface of the partition plate (18), the upper part of the partition plate (18) is a hollow gas channel (21), one end of the gas channel (21) is connected with an air inlet (22), and the air inlet (22) is connected with an air storage tank (7) through a pipeline; the foaming device is characterized in that the foaming device (1) is divided into an upper cavity (19) and a lower cavity (20) by the partition plate (18), a telescopic motor (15) is arranged on the top surface in the upper cavity (19), the movable end of the telescopic motor (15) is connected with a rotating motor (32), the movable end of the rotating motor (32) is connected with a rotating shaft (16), at least two groups of rotating mechanisms (17) are fixed on the rotating shaft (16), each rotating mechanism (17) comprises a fixed shaft and a blade, one end of the fixed shaft is fixed on the rotating shaft (16), the blade is arranged on the fixed shaft and has a certain angle theta relative to the horizontal line, a roller set (24) is arranged in the lower cavity (20), and the roller set (24) comprises two rollers (25) which are arranged oppositely and a fixed strip (26) which is used for fixing the two rollers (25) respectively, the two rollers (25) rotate in opposite directions, a gap between the two rollers (25) corresponds to the material guide groove (33), one end of the fixing strip (26) is fixed on the side wall of the lower cavity (20), the other end of the fixing strip (26) is fixed at the center of the roller (25), and the angle of one end of the fixing strip (26) fixed on the roller (25) is adjustable;
the feeding mechanism comprises a feeding port A (12), a feeding port B (13), a feeding port (31) and a discharging port (27), wherein the feeding port A (12), the feeding port B (13) and the feeding port (31) are all arranged at the top of the foaming equipment (1), the discharging port (27) is arranged at the bottom of the foaming equipment (1), the feeding port A (12) is connected to the liquid storage tank A (2) through a pipeline, a control valve A (1201) is arranged on the pipeline connecting the feeding port A (12) and the liquid storage tank A (2), the feeding port B (13) is connected to the liquid storage tank B (3) through a pipeline, and a control valve B (1301) is arranged on the pipeline connecting the feeding port B (13) and the liquid storage tank B (3);
the curing mechanism comprises curing equipment (4), the curing equipment (4) is connected to the discharge port (27) through a pipeline, a control valve C (28) is arranged on the pipeline connecting the discharge port (27) and the curing equipment (4), and the curing equipment (4) is connected to the steam generating device (5) through a second circulating pipeline (34); and
control mechanism, control mechanism includes temperature sensor A (35), temperature sensor B (36) and controller (30), temperature sensor A (35) set up in last cavity (19), temperature sensor B (36) set up in cavity (20) down, controller (30) comprise display and control button, display and temperature sensor A (35), temperature sensor B (36) electric connection, control button and flexible motor (15), rotating electrical machines (32), curing apparatus (4), steam generation device (5), heat exchanger (6), rotary mechanism (17), roller train (24), control valve A (1201), control valve B (1301) and control valve C (28) electric connection.
2. The apparatus for producing a breathable polyurethane elastomer foam support pad of claim 1, wherein: the rotating directions of the two adjacent rotating mechanisms (17) are the same, and the rotating speeds of the two adjacent rotating mechanisms (17) are different.
3. The apparatus for producing a breathable polyurethane elastomer foam support pad of claim 1, wherein: the rotating directions of two adjacent rotating mechanisms (17) are opposite.
4. The apparatus for producing the breathable polyurethane elastomer foam support pad of claim 2 or 3, wherein: the rotating mechanisms (17) are provided with two groups, and the rotating mechanisms (17) are respectively a first rotating mechanism (171) and a second rotating mechanism (172).
5. The apparatus for producing the breathable polyurethane elastomer foam support pad of claim 4, wherein: the first rotating mechanism (171) is composed of a plurality of first fixed shafts (1711) and first blades (1712), and the second rotating mechanism (172) is composed of a plurality of second fixed shafts (1721) and second blades (1722).
6. The apparatus for producing the breathable polyurethane elastomer foam support pad of claim 5, wherein: the number of the first fixed shafts (1711) and the number of the first blades (1712) are 4, and the structures of the first fixed shafts (1711) and the structures of the first blades (1712) are circumferentially and uniformly distributed on the rotating shaft (16); the number of the second fixed shafts (1721) and the number of the second blades (1722) are 4, and the structures of the second fixed shafts (1721) and the second blades (1722) are circumferentially and uniformly distributed on the rotating shaft (16).
7. The apparatus for producing a breathable polyurethane elastomer foam support pad of claim 1, wherein: transparent glass is arranged on the observation window (29).
8. The apparatus for producing a breathable polyurethane elastomer foam support pad of claim 1, wherein: the air holes (23) are in one of a square shape, a round shape or a diamond shape.
9. The apparatus for producing a breathable polyurethane elastomer foam support pad according to claim 1 or 8, wherein: the air holes (23) are circumferentially and uniformly distributed on the upper surface of the partition plate (18).
10. The apparatus for producing a breathable polyurethane elastomer foam support pad of claim 1, wherein: the angle theta of the blade relative to the horizontal is 30-60 deg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110007525.8A CN112810022B (en) | 2021-01-05 | 2021-01-05 | Device for producing breathable polyurethane elastomer foam material supporting pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110007525.8A CN112810022B (en) | 2021-01-05 | 2021-01-05 | Device for producing breathable polyurethane elastomer foam material supporting pad |
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| Publication Number | Publication Date |
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| CN112810022A true CN112810022A (en) | 2021-05-18 |
| CN112810022B CN112810022B (en) | 2022-02-18 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010009683A1 (en) * | 2000-01-21 | 2001-07-26 | Jsp Corporation | Apparatus for producing expansion-molded article |
| US20030148722A1 (en) * | 1998-06-02 | 2003-08-07 | Brian Lombardo | Froth and method of producing froth |
| CN108973000A (en) * | 2018-10-19 | 2018-12-11 | 萍乡市集美环保新材料制造有限公司 | Pre-foaming machine is used in a kind of preparation of foam backing plate |
| CN208410497U (en) * | 2018-05-29 | 2019-01-22 | 晋江市华昌机械工贸有限公司 | A kind of automatic liquid foam machine |
| CN212193904U (en) * | 2020-05-20 | 2020-12-22 | 广州顺力聚氨酯科技有限公司 | Production foaming equipment of polyurethane sealing strip |
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2021
- 2021-01-05 CN CN202110007525.8A patent/CN112810022B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030148722A1 (en) * | 1998-06-02 | 2003-08-07 | Brian Lombardo | Froth and method of producing froth |
| US20010009683A1 (en) * | 2000-01-21 | 2001-07-26 | Jsp Corporation | Apparatus for producing expansion-molded article |
| CN208410497U (en) * | 2018-05-29 | 2019-01-22 | 晋江市华昌机械工贸有限公司 | A kind of automatic liquid foam machine |
| CN108973000A (en) * | 2018-10-19 | 2018-12-11 | 萍乡市集美环保新材料制造有限公司 | Pre-foaming machine is used in a kind of preparation of foam backing plate |
| CN212193904U (en) * | 2020-05-20 | 2020-12-22 | 广州顺力聚氨酯科技有限公司 | Production foaming equipment of polyurethane sealing strip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112810022B (en) | 2022-02-18 |
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