CN109262938B - Polyurethane foaming machine - Google Patents
Polyurethane foaming machine Download PDFInfo
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- CN109262938B CN109262938B CN201811053006.XA CN201811053006A CN109262938B CN 109262938 B CN109262938 B CN 109262938B CN 201811053006 A CN201811053006 A CN 201811053006A CN 109262938 B CN109262938 B CN 109262938B
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- shell
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- cylinder
- stirring rod
- polyurethane
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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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
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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
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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
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
Abstract
The invention belongs to the technical field of polyurethane production equipment, and particularly relates to a polyurethane foaming machine which comprises a shell, a motor, a connecting shaft, a feeding hole, a first stirring rod, a cam, an air bag and a discharging hole; the motor is arranged at the top of the shell; the connecting shaft is arranged in the shell through a motor output shaft, and a channel is arranged in the connecting shaft; the number of the feed inlets is two, and the feed inlets are arranged at the top of the shell in a bilateral symmetry manner; a plurality of groups of first stirring rods are fixedly arranged on the connecting shaft, the number of the first stirring rods in each group is even, a channel is arranged in each first stirring rod, the channel in each first stirring rod is communicated with the channel in the connecting shaft, and an air hole is formed in the lower surface of each first stirring rod; the cam is arranged on the output shaft of the motor; the top of the shell is provided with a circular cavity which is communicated with an internal channel of the connecting shaft; the air bag is fixed at the top of the shell; the discharge hole is positioned at the bottom of the shell.
Description
Technical Field
The invention belongs to the technical field of polyurethane production equipment, and particularly relates to a polyurethane foaming machine.
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. The quality of a polyurethane product has a direct relation with the mixing uniformity of the material A and the material B of the polyurethane, and meanwhile, when the polyurethane raw material is uniformly mixed, sufficient gas needs to be mixed into the raw material, and the gas is uniformly distributed in the polyurethane raw material; however, in the conventional polyurethane foaming machine, a metering pump is adopted to pump a polyurethane material A and a polyurethane material B into a mixing head according to a set proportion and a set flow rate, when a one-way valve of the mixing head is opened, the material A and the material B are mixed in the mixing head, and are blown out of the mixing head by compressed gas to be injected into a mold to produce a finished product, so that the polyurethane foaming process is extremely unstable, the produced polyurethane foaming material has poor forming precision, and a high-quality finished product is difficult to produce.
Disclosure of Invention
In order to make up for the defects of the prior art, the polyurethane foaming machine provided by the invention has the advantages that the cutting wheel of the filter plate is matched with the gas passage in the shell, so that the polyurethane A material and the polyurethane B material are uniformly segmented by the cutting wheel when passing through the feed inlet, the A material and the B material are better mixed, gas is more uniformly mixed into the raw materials, the quality of the prepared polyurethane is improved, and the quality of a polyurethane product is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a polyurethane foaming machine which comprises a shell, a motor, a connecting shaft, a feeding hole, a first stirring rod, a cam, an air bag and a discharging hole, wherein the motor is arranged on the shell; the motor is arranged at the top of the shell; the connecting shaft is arranged in the shell through a motor output shaft, and a channel is arranged in the connecting shaft; the number of the feed inlets is two, the feed inlets are arranged at the top of the shell in a bilateral symmetry mode, and the feed inlets are respectively used for injecting polyurethane A materials and polyurethane B materials into the shell; a plurality of groups of first stirring rods are fixedly arranged on the connecting shaft, the number of the first stirring rods in each group is even, a channel is arranged in each first stirring rod, the channel in each first stirring rod is communicated with the channel in the connecting shaft, air holes are formed in the lower surface of each first stirring rod, and each first stirring rod is used for stirring raw materials; the cam is arranged on the output shaft of the motor; the top of the shell is provided with a circular cavity which is communicated with an internal channel of the connecting shaft; the air bag is fixed at the top of the shell and is an elastic air bag, a one-way air inlet valve and a one-way air outlet valve are arranged on the air bag, the one-way air inlet valve is communicated with the outside, and the one-way air outlet valve is connected with the circular cavity through a pipeline; the discharge hole is positioned at the bottom of the shell and discharges the mixed polyurethane. When the device works, polyurethane A material and polyurethane B material are input into the shell through the feed inlet, the motor rotates at the moment, the connecting shaft drives the first stirring rod to rotate, so that raw materials are stirred more uniformly in the shell, the cam rotates along with the motor, so that the cam is continuously contacted and separated with the air bag, the air bag can automatically recover after being pressed because the air bag is an elastic air bag, so that the air bag is continuously contracted and recovered, further the air bag continuously absorbs gas from the outside through the one-way air inlet valve and conveys the gas into the circular cavity, and the circular cavity, the connecting shaft internal channel and the first stirring rod internal channel are communicated, so that the gas is finally discharged into the raw materials through the air hole of the first stirring rod to inflate the raw materials, guaranteed to possess sufficient amount of gas in the polyurethane, rotate simultaneously through a puddler with gaseous even sneak into the raw materials, make the gas distribution in the raw materials more even, thereby the quality of the polyurethane that makes has been improved, the quality of the polyurethane goods that make has been improved, a puddler lower surface sets up the gas pocket and has guaranteed that polyurethane can not get into a puddler in, the passageway in having avoided a puddler is blockked up, the practicality of foaming machine has been improved, mix complete polyurethane at last and carry to relevant injection apparatus in through the discharge gate.
The end part of the first stirring rod is provided with a magnetic ring, and the polarities of the adjacent magnetic rings close to one end of the inner wall of the shell are different; inlay on the shells inner wall and have the multiunit cylinder, quantity is no less than two in the cylinder in every group, and the distribution in the vertical side of cylinder is corresponding with the distribution in the vertical side of puddler No. one, is equipped with the circular piston of taking magnetism in the cylinder, and the piston is close to the inside one end polarity of casing the same, and the cylinder is close to the inside one side of casing and is equipped with the through-hole, and the cylinder is close to external one side and is equipped with one-way admission valve and one-way air outlet valve, and one-way admission valve is linked together with the external world. When the magnetic ring works, the first stirring rod rotates, so that the magnetic ring rotates, when the polarities of the magnetic ring and the piston are the same, the piston is far away from the magnetic ring under the repulsive force, so that the partial cylinder body of the cylinder in the shell absorbs the raw materials through the through holes, the material A and the material B in the raw materials are fully mixed, when the polarity of the magnetic ring is opposite to that of the piston, the piston approaches to the magnetic ring, so that the piston extrudes the raw material in the cylinder, the raw material enters the shell again through the through hole on the cylinder, so that when the magnetic ring rotates along with the first stirring rod, the raw materials continuously enter the cylinder and are discharged from the cylinder, when the raw materials pass through the through-hole cylinder, the material A and the material B are fully mixed under the action of extrusion force, and then make the raw materials mix more evenly, the effectual mixed effect that improves the raw materials for the quality of the polyurethane goods that finally makes obtains promotion by a wide margin.
The magnetic ring is arranged on the first stirring rod through a spring, and the axis of the magnetic ring deviates from the axis of the first stirring rod. When the magnetic ring moves away from the piston, the magnetic ring restores to the initial position again under the action of the spring; the magnetic ring rotates along with a stirring rod to enable the magnetic ring to be continuously close to and far away from the piston, so that the magnetic ring continuously moves up and down, left and right, the raw materials are stirred by the magnetic ring, the stirring effect of the raw materials is further improved, the raw materials are mixed more uniformly, meanwhile, the gas is mixed more uniformly in the raw materials, and the use performance of the foaming machine is improved.
A filter plate is arranged in the feeding hole and is used for enabling the raw materials to enter the shell in a strip shape; a cutting wheel is arranged below the filter plate, is rotatably arranged below the filter plate through a shaft and is used for segmenting the raw materials; the top of the shell is provided with a gas passage, the gas passage is connected with a one-way gas outlet valve of the cylinder through a pipeline, the gas passage is communicated with the feed inlet, the communicated part and the cutting wheel are positioned on the same straight line, and the gas passage is used for blowing the cutting wheel to rotate. When the gas-liquid separator works, the piston continuously reciprocates in the horizontal direction in the cylinder body under the action of the magnetic ring along with the mutual approaching and keeping away of the piston and the magnetic ring, so that the cylinder continuously absorbs gas through the one-way gas inlet valve, and then the gas is conveyed to the gas passage in the shell through the one-way gas outlet valve, so that the gas blows the cutting wheel, the cutting wheel cuts and segments raw materials entering the feed inlet, the raw materials drive the gas to fall into the shell, sufficient gas is mixed in the raw materials, the sufficient gas in finally mixed polyurethane is ensured, meanwhile, the component of the gas required to be supplied by the gas bag is reduced, the working time is shortened, the working efficiency is improved, the cost is saved, meanwhile, the raw materials fall in a strip shape due to the existence of the filter plate, the raw materials are more uniformly mixed with the gas after being cut, and the quality of the mixed raw materials is improved, the quality of the finally prepared polyurethane product is improved.
A plurality of groups of second stirring rods are further arranged on the connecting shaft, the second stirring rods and the first stirring rods are alternately arranged in the vertical direction, and the second stirring rods are used for stirring raw materials; no. two puddler tip rotates and installs the brush, and the brush is located between upper and lower adjacent two sets of cylinders, and the brush is used for brushing the raw materials of adhesion between adjacent cylinder. The during operation, No. two (mixing) shafts drive the brush and stir the raw materials, make raw materials stirring more even, after raw materials stirring is accomplished, discharge gate discharge raw materials, at this moment, No. two (mixing) shafts drive the brush and brush the raw materials of the adhesion between two sets of adjacent cylinders and remove, avoided the raw materials adhesion between the cylinder, the waste of material has been avoided, avoided the inside clearance of casing to cause the influence to subsequent use simultaneously, the rotation installation of brush makes the brush when along with the revolution of No. two puddlers, brush self rotates under the effect of the polyurethane raw materials of adhesion on cylinder and cylinder, thereby make the polyurethane between the gap of cylinder and casing more clean by the brushing, the practicality of foaming machine has been improved.
The polytetrafluoroethylene coating is coated on the connecting shaft, and the polytetrafluoroethylene coating is coated on the first stirring rod, the second stirring rod and the magnetic ring, so that the polytetrafluoroethylene coating prevents raw materials from being adhered to the connecting shaft, the first stirring rod, the second stirring rod and the magnetic ring. During operation, when the existence of polytetrafluoroethylene makes the raw materials discharge casing, make the raw materials can not the adhesion on the connecting axle, a puddler, No. two puddlers and magnetic ring, thereby make the raw materials discharge more complete, the utilization ratio of raw materials has been improved, the cost is saved, the remaining rotten subsequent use that influences of polyurethane in the casing has been avoided simultaneously, the non-adhesion nature of polytetrafluoroethylene makes a puddler, the resistance that receives when No. two puddlers and magnetic ring move in the raw materials is littleer, thereby the puddler has been improved, the stirring efficiency and the stirring effect of No. two puddlers and magnetic ring, the resistance that the magnetic ring received makes the extra effort that magnetic ring and spring coupling received reduce for a short time simultaneously, the life of magnetic ring has been improved, the life and the performance of device have been improved.
The invention has the following beneficial effects:
1. according to the polyurethane foaming machine, the cutting wheel of the filter plate is matched with the gas passage in the shell, so that a polyurethane material A and a polyurethane material B are uniformly segmented by the cutting wheel when passing through the feeding hole, the material A and the material B are better mixed, gas is more uniformly mixed into raw materials, the quality of the prepared polyurethane is improved, and the quality of a polyurethane product is improved.
2. According to the polyurethane foaming machine, the first stirring rod drives the magnetic rings to rotate, so that the magnetic rings with different polarities are alternately close to and far away from the piston, the piston reciprocates in the cylinder in the horizontal direction under the action of the magnetic rings with different polarities, raw materials are sucked into the cylinder by the cylinder and then are discharged out of the cylinder, and the raw materials are fully mixed with the material A and the material B in the raw materials due to the action of extrusion force when passing through the through holes in the cylinder, so that the mixing effect of the raw materials is improved, and the quality of a finally prepared polyurethane product is improved.
3. According to the polyurethane foaming machine, the circular cavity on the shell is communicated with the internal channel of the connecting shaft and the internal channel of the first stirring rod, the cam is matched with the air bag, so that the air bag is continuously contracted and recovered, external air is continuously conveyed into the circular cavity, and finally the air bag is conveyed into raw materials through the air holes in the lower surface of the first stirring rod, so that sufficient air is obtained in the raw materials, and meanwhile, the first stirring rod rotates and conveys air, so that the air is mixed in the raw materials more uniformly, the quality of the prepared polyurethane is improved, and the service performance of equipment is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
in the figure: the device comprises a shell 1, a motor 2, a connecting shaft 3, a feeding hole 4, a first stirring rod 5, a cam 6, a first air bag 7, a discharging hole 8, a second stirring rod 9, a circular cavity 11, a cylinder 12, a circular piston 13, a gas passage 14, a filter plate 41, a cutting wheel 42, a magnetic ring 51 and a brush 91.
Detailed Description
The structure of a polyurethane foam machine according to an embodiment of the present invention will be described below with reference to fig. 1 to 3.
As shown in fig. 1, the polyurethane foaming machine of the present invention comprises a housing 1, a motor 2, a connecting shaft 3, a feeding port 4, a first stirring rod 5, a cam 6, an air bag 7 and a discharging port 8; the motor 2 is arranged at the top of the shell 1; the connecting shaft 3 is arranged in the shell 1 through an output shaft of the motor 2, and a channel is arranged in the connecting shaft 3; the number of the feed inlets 4 is two, the feed inlets 4 are arranged at the top of the shell 1 in a bilateral symmetry manner, and the feed inlets 4 are respectively used for injecting polyurethane A materials and polyurethane B materials into the shell 1; a plurality of groups of first stirring rods 5 are fixedly arranged on the connecting shaft 3, the number of the first stirring rods 5 in each group is an even number, a channel is arranged inside each first stirring rod 5, the channel inside each first stirring rod 5 is communicated with the channel inside the connecting shaft 3, air holes are formed in the lower surface of each first stirring rod 5, and each first stirring rod 5 is used for stirring raw materials; the cam 6 is arranged on the output shaft of the motor 2; the top of the shell 1 is provided with a circular cavity 11, and the circular cavity 11 is communicated with an internal channel of the connecting shaft 3; the air bag 7 is fixed at the top of the shell 1, the air bag 7 is an elastic air bag, a one-way air inlet valve and a one-way air outlet valve are arranged on the air bag 7, the one-way air inlet valve is communicated with the outside, and the one-way air outlet valve is connected with the circular cavity 11 through a pipeline; and the discharge port 8 is positioned at the bottom of the shell 1, and the mixed polyurethane is discharged from the discharge port 8. When the stirring device works, polyurethane A material and polyurethane B material are input into the shell 1 through the feed inlet 4, the motor 2 rotates at the moment, the connecting shaft 3 drives the first stirring rod 5 to rotate, so that raw materials are stirred in the shell 1 more uniformly, meanwhile, the cam 6 rotates along with the motor 2, so that the cam 6 is continuously contacted with and separated from the air bag 7, the air bag 7 can be automatically recovered after being pressed because the air bag 7 is an elastic air bag, so that the air bag 7 is continuously contracted and recovered, further, the air bag 7 continuously absorbs gas from the outside through the one-way air inlet valve and conveys the gas into the circular cavity 11, and the circular cavity 11, the internal channel of the connecting shaft 3 and the internal channel of the first stirring rod 5 are communicated, so that the gas is discharged into the raw materials through the air hole of the first stirring rod 5 from the air bag 7 through the circular cavity 11, the internal channel of the connecting shaft 3 and the internal channel of the first stirring rod, aerify the raw materials, it has sufficient amount of gas to have guaranteed in the polyurethane, rotate simultaneously through puddler 5 with gaseous even sneak into the raw materials, make the gas distribution in the raw materials more even, thereby the quality of the polyurethane that makes has been improved, the quality of the polyurethane goods that make has been improved, puddler 5 lower surface sets up the gas pocket and has guaranteed that polyurethane can not get into in puddler 5, avoided the passageway in puddler 5 to be blockked up, the practicality of foaming machine has been improved, the polyurethane that mixes completely at last is carried to relevant injection apparatus in through discharge gate 8.
As shown in fig. 1 and fig. 2, the end of the first stirring rod 5 is provided with a magnetic ring 51, and the polarities of the adjacent magnetic rings 51 near the inner wall of the housing 1 are different; inlay on the 1 inner wall of casing and have multiunit cylinder 12, two are no less than to the quantity in the cylinder 12 in every group, distribution on the 12 vertical side of cylinder is corresponding with the ascending distribution of 5 vertical sides of puddler, be equipped with in the cylinder 12 and take magnetic circular piston 13, piston 13 is close to the inside one end polarity of casing 1 the same, cylinder 12 is close to 1 inside one side of casing and is equipped with the through-hole, cylinder 12 is close to external one side and is equipped with one-way admission valve and one-way air outlet valve, one-way admission valve is linked together with the external world, cylinder 12 is arranged in inhaling the cylinder body of discharging again after. When the stirring rod 5 rotates, the magnetic ring 51 rotates, when the polarity of the magnetic ring 51 is the same as that of the piston 13, the piston 13 is far away from the magnetic ring 51 by repulsive force, so that the partial cylinder body of the cylinder 12 in the shell 1 absorbs the raw material through the through holes, the material A and the material B in the raw material are fully mixed, when the polarity of the magnetic ring 51 is opposite to that of the piston 13, the piston 13 approaches to the magnetic ring 51, so that the piston 13 presses the raw material in the cylinder 12, so that the raw material enters the housing 1 again through the through hole of the cylinder 12, so that when the magnetic ring 51 rotates along with the first stirring rod 5, the raw materials continuously enter the cylinder 12 and are discharged from the cylinder 12, when the raw materials pass through the through-hole cylinder 12, the material A and the material B are fully mixed under the action of the extrusion force, and then make the raw materials mix more evenly, the effectual mixed effect that improves the raw materials for the quality of the polyurethane goods that finally makes obtains promotion by a wide margin.
As shown in fig. 1 and 2, the magnetic ring 51 is mounted on the first stirring rod 5 through a spring, and the axis of the magnetic ring 51 is offset from the axis of the first stirring rod 5. When the magnetic ring 51 works, the magnetic ring 51 is eccentrically arranged and the piston 13 is the circular piston 13, so that when the magnetic ring 51 approaches to the piston 13 along with the rotation of the first stirring rod 5, the magnetic ring 51 is gradually superposed with the axis of the piston 13 under the action of the piston 13, the magnetic ring 51 pulls the spring to move, and when the magnetic ring 51 is far away from the piston 13, the magnetic ring 51 restores to the initial position under the action of the spring; the magnetic ring 51 rotates along with the first stirring rod 5, so that the magnetic ring 51 is continuously close to and far away from the piston 13, the magnetic ring 51 continuously moves up and down, left and right, raw materials are stirred by the magnetic ring 51, the stirring effect of the raw materials is further improved, the raw materials are mixed more uniformly, gas is mixed more uniformly in the raw materials, and the use performance of the foaming machine is improved.
As shown in fig. 1 and fig. 3, a filter plate 41 is disposed in the feed port 4, and the filter plate 41 is used for making the raw material enter the casing 1 in a strip shape; a cutting wheel 42 is arranged below the filter plate 41, the cutting wheel 42 is rotatably arranged below the filter plate 41 through a shaft, and the cutting wheel 42 is used for segmenting the raw materials; the top of the shell 1 is provided with a gas passage 14, the gas passage 14 is connected with a one-way gas outlet valve of the cylinder 12 through a pipeline, the gas passage 14 is communicated with the feed port 4, the communicated part is positioned on a straight line with the cutting wheel 42, and the gas passage 14 is used for blowing the cutting wheel 42 to rotate. When the gas cutting device works, the piston 13 continuously performs reciprocating motion in the horizontal direction in the cylinder body under the action of the magnetic ring 51 along with the mutual approaching and separating of the piston 13 and the magnetic ring 51, so that the cylinder 12 continuously absorbs gas through the one-way gas inlet valve, and then the gas is conveyed to the gas passage 14 in the shell 1 through the one-way gas outlet valve, so that the gas blows the cutting wheel 42, the cutting wheel 42 cuts and segments raw materials entering the feed inlet 4, the raw materials drive the gas to fall into the shell 1, the sufficient gas mixed in the raw materials is ensured, the sufficient gas in finally mixed polyurethane is ensured, the component of the gas required to be supplied by the gas bag 7 is reduced, the working time is shortened, the working efficiency is improved, the cost is saved, meanwhile, the raw materials fall in a strip shape due to the existence of the filter plate 41, and the raw materials are more uniformly mixed with the gas after being cut, thereby improving the quality of the mixed raw materials and the quality of the finally prepared polyurethane product.
As shown in fig. 1, a plurality of groups of second stirring rods 9 are further arranged on the connecting shaft 3, the second stirring rods 9 and the first stirring rods 5 are alternately arranged in the vertical direction, and the second stirring rods 9 are used for stirring raw materials; no. two puddler 9 tip rotates and installs brush 91, and brush 91 is located between upper and lower adjacent two sets of cylinders 12, and brush 91 is used for brushing off the raw materials of adhesion between adjacent cylinder 12. The during operation, No. two (mixing) shafts drive brush 91 and stir the raw materials, make raw materials stirring more even, after raw materials stirring is accomplished, through 8 discharge raw materials of discharge gate, at this moment, No. two (mixing) shafts drive brush 91 and brush the raw materials of the adhesion between two sets of adjacent cylinders 12, avoided the raw materials adhesion between cylinder 12, the waste of material has been avoided, avoided the inside unclean of casing 1 to cause the influence to subsequent use simultaneously, brush 91's rotation installation makes brush 91 when along with the revolution of No. two puddler 9, brush 91 self rotates under the effect of the polyurethane raw materials of adhesion on cylinder 12 and cylinder 12, thereby make the polyurethane between the gap of cylinder 12 and casing 1 more clean by the brushing off, the practicality of foaming machine has been improved.
As shown in fig. 1, the connecting shaft 3 is coated with a teflon coating, and the first stirring rod 5, the second stirring rod 9 and the magnetic ring 51 are coated with the teflon coating, so that the teflon coating prevents raw materials from being adhered to the connecting shaft 3, the first stirring rod 5, the second stirring rod 9 and the magnetic ring 51. During operation, when polytetrafluoroethylene's existence makes raw materials discharge casing 1, make the raw materials can not the adhesion at connecting axle 3, puddler 5, No. two puddler 9 and magnetic ring 51, thereby make raw materials discharge more complete, the utilization ratio of raw materials has been improved, the cost is saved, the remaining rotten subsequent use that influences of polyurethane in casing 1 has been avoided simultaneously, the non-adhesion nature of polytetrafluoroethylene makes puddler 5, the resistance that receives when second puddler 9 and magnetic ring 51 move in the raw materials is littleer, thereby puddler 5 has been improved, the stirring efficiency and the stirring effect of No. two puddler 9 and magnetic ring 51, the resistance that magnetic ring 51 received makes the extra effort that magnetic ring 51 and spring coupling received reduce simultaneously for a short time, the life of magnetic ring 51 has been improved, the life and the performance of device have been improved.
The specific working process is as follows:
when the device works, polyurethane A material and polyurethane B material are input into the shell 1 through the feed inlet 4, the motor 2 rotates at the moment, the connecting shaft 3 drives the first stirring rod 5 to rotate, so that raw materials are stirred in the shell 1 more uniformly, meanwhile, the cam 6 rotates along with the motor 2, so that the cam 6 is continuously contacted with and separated from the air bag 7, the air bag 7 can be automatically recovered after being pressed because the air bag 7 is an elastic air bag, so that the air bag 7 is continuously contracted and recovered, further, the air bag 7 continuously absorbs gas from the outside through the one-way air inlet valve and conveys the gas into the circular cavity 11, and the circular cavity 11, the internal channel of the connecting shaft 3 and the internal channel of the first stirring rod 5 are communicated, so that the gas is discharged into the raw materials through the air holes from the air bag 7 through the circular cavity 11, the internal channel of the connecting shaft 3 and the internal channel of the first stirring rod 5, aerify the raw materials, it has sufficient amount of gas to have guaranteed in the polyurethane, rotate simultaneously through puddler 5 with gaseous even sneak into the raw materials, make the gas distribution in the raw materials more even, thereby the quality of the polyurethane that makes has been improved, the quality of the polyurethane goods that make has been improved, puddler 5 lower surface sets up the gas pocket and has guaranteed that polyurethane can not get into in puddler 5, avoided the passageway in puddler 5 to be blockked up, the practicality of foaming machine has been improved, the polyurethane that mixes completely at last is carried to relevant injection apparatus in through discharge gate 8.
In the process, the first stirring rod 5 rotates, so that the magnetic ring 51 rotates, when the polarity of the magnetic ring 51 is the same as that of the piston 13, the piston 13 is subjected to repulsive force to be far away from the magnetic ring 51, so that the partial cylinder body of the cylinder 12 in the shell 1 absorbs the raw material through the through holes, the material A and the material B in the raw material are fully mixed, when the polarity of the magnetic ring 51 is opposite to that of the piston 13, the piston 13 approaches to the magnetic ring 51, so that the piston 13 presses the raw material in the cylinder 12, so that the raw material enters the housing 1 again through the through hole of the cylinder 12, so that when the magnetic ring 51 rotates along with the first stirring rod 5, the raw materials continuously enter the cylinder 12 and are discharged from the cylinder 12, when the raw materials pass through the through-hole cylinder 12, the material A and the material B are fully mixed under the action of the extrusion force, and then make the raw materials mix more evenly, the effectual mixed effect that improves the raw materials for the quality of the polyurethane goods that finally makes obtains promotion by a wide margin.
Because the magnetic ring 51 is eccentrically installed and the piston 13 is a circular piston 13, when the magnetic ring 51 approaches the piston 13 along with the rotation of the first stirring rod 5, the magnetic ring 51 is gradually overlapped with the axis of the piston 13 under the action of the action force of the piston 13, so that the magnetic ring 51 pulls the spring to move, and when the magnetic ring 51 is far away from the piston 13, the magnetic ring 51 restores to the initial position again under the action force of the spring; the magnetic ring 51 rotates along with the first stirring rod 5, so that the magnetic ring 51 is continuously close to and far away from the piston 13, the magnetic ring 51 continuously moves up and down, left and right, raw materials are stirred by the magnetic ring 51, the stirring effect of the raw materials is further improved, the raw materials are mixed more uniformly, gas is mixed more uniformly in the raw materials, and the use performance of the foaming machine is improved.
Along with the mutual approaching and departing of the piston 13 and the magnetic ring 51, the piston 13 continuously reciprocates in the cylinder body in the horizontal direction under the action of the magnetic ring 51, so that the cylinder 12 continuously absorbs gas through the one-way air inlet valve, and then the gas is conveyed to the gas passage 14 in the shell 1 through the one-way air outlet valve, so that the gas blows the cutting wheel 42, the cutting wheel 42 cuts and segments the raw material entering from the feed inlet 4, and further the raw material drives the gas to fall into the shell 1, so that sufficient gas is mixed into the raw material, the sufficient gas in the finally mixed polyurethane is ensured, meanwhile, the component of the gas required to be supplied by the air bag 7 is reduced, the working time is shortened, the working efficiency is improved, the cost is saved, meanwhile, the raw material falls in a strip shape due to the existence of the filter plate 41, and the raw material is more uniformly mixed with the gas after being cut, thereby improving the quality of the mixed raw materials and the quality of the finally prepared polyurethane product.
No. two (mixing) shafts drive brush 91 and stir the raw materials, make raw materials stirring more even, after raw materials stirring is accomplished, through 8 discharge raw materials of discharge gate, this moment, No. two (mixing) shafts drive brush 91 and brush the raw materials of the adhesion between two sets of adjacent cylinders 12, avoided the raw materials adhesion between cylinder 12, the waste of material has been avoided, avoided the inside unclean of casing 1 to cause the influence to subsequent use simultaneously, brush 91's rotation installation makes brush 91 when along with the revolution of No. two puddler 9, brush 91 self rotates under the effect of the polyurethane raw materials of adhesion on cylinder 12 and cylinder 12, thereby make the polyurethane between the gap of cylinder 12 and casing 1 brushed cleaner, the practicality of foaming machine has been improved.
The polytetrafluoroethylene coating prevents the raw materials from being adhered to the connecting shaft 3, the first stirring rod 5, the second stirring rod 9 and the magnetic ring 51. During operation, when polytetrafluoroethylene's existence makes raw materials discharge casing 1, make the raw materials can not the adhesion at connecting axle 3, puddler 5, No. two puddler 9 and magnetic ring 51, thereby make raw materials discharge more complete, the utilization ratio of raw materials has been improved, the cost is saved, the remaining rotten subsequent use that influences of polyurethane in casing 1 has been avoided simultaneously, the non-adhesion nature of polytetrafluoroethylene makes puddler 5, the resistance that receives when second puddler 9 and magnetic ring 51 move in the raw materials is littleer, thereby puddler 5 has been improved, the stirring efficiency and the stirring effect of No. two puddler 9 and magnetic ring 51, the resistance that magnetic ring 51 received makes the extra effort that magnetic ring 51 and spring coupling received reduce simultaneously for a short time, the life of magnetic ring 51 has been improved, the life and the performance of device have been improved.
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 piston makes reciprocating motion in the cylinder in the horizontal direction by the attraction force and the repulsion force of the magnetic ring and the piston, so that the polyurethane raw material enters the cylinder and is discharged from the cylinder, but not limited thereto, the piston can also be moved by applying an air source to the cylinder, so that the polyurethane enters and exits the cylinder.
Industrial applicability
According to the invention, the polyurethane foaming machine can smoothly and uniformly mix the polyurethane A material and the polyurethane B material and inject sufficient gas to prepare high-quality polyurethane, so that the polyurethane foaming machine is useful in the technical field of polyurethane production equipment.
Claims (5)
1. A polyurethane foaming machine is characterized in that: comprises a shell (1), a motor (2), a connecting shaft (3), a feeding hole (4), a first stirring rod (5), a cam (6), an air bag (7) and a discharging hole (8); the motor (2) is arranged at the top of the shell (1); the connecting shaft (3) is arranged inside the shell (1) through an output shaft of the motor (2), and a channel is arranged inside the connecting shaft (3); the feeding holes (4) are two in number, the feeding holes (4) are arranged at the top of the shell (1) in a bilateral symmetry mode, and the feeding holes (4) are respectively used for injecting polyurethane A materials and polyurethane B materials into the shell (1); a plurality of groups of first stirring rods (5) are fixedly mounted on the connecting shaft (3), the number of the first stirring rods (5) in each group is even, a channel is arranged inside each first stirring rod (5), the channel inside each first stirring rod (5) is communicated with the channel inside the connecting shaft (3), air holes are formed in the lower surface of each first stirring rod (5), and each first stirring rod (5) is used for stirring raw materials; the cam (6) is arranged on an output shaft of the motor (2); the top of the shell (1) is provided with a circular cavity (11), and the circular cavity (11) is communicated with an internal channel of the connecting shaft (3); the air bag (7) is fixed at the top of the shell (1), the air bag (7) is an elastic air bag, a one-way air inlet valve and a one-way air outlet valve are arranged on the air bag (7), the one-way air inlet valve is communicated with the outside, and the one-way air outlet valve is connected with the circular cavity (11) through a pipeline; the discharge hole (8) is positioned at the bottom of the shell (1), and the mixed polyurethane is discharged through the discharge hole (8);
the end part of the first stirring rod (5) is provided with a magnetic ring (51), and the polarities of the adjacent magnetic rings (51) close to one end of the inner wall of the shell (1) are different; inlay on casing (1) inner wall and have multiunit cylinder (12), two are no less than to the number in cylinder (12) in every group, distribution on cylinder (12) vertical side is corresponding with the ascending distribution of a puddler (5) vertical side, be equipped with in cylinder (12) and take magnetic circular piston (13), piston (13) are close to casing (1) inside one end polarity the same, cylinder (12) are close to casing (1) inside one side and are equipped with the through-hole, cylinder (12) are close to external one side and are equipped with one-way admission valve and one-way air outlet valve, one-way admission valve is linked together with the external world, cylinder (12) are arranged in sucking the raw materials cylinder body after the mixing cylinder body again.
2. A polyurethane foam maker as set forth in claim 1, wherein: the magnetic ring (51) is arranged on the first stirring rod (5) through a spring, and the axis of the magnetic ring (51) deviates from the axis of the first stirring rod (5).
3. A polyurethane foam maker as set forth in claim 1, wherein: a filter plate (41) is arranged in the feed port (4), and the filter plate (41) is used for enabling raw materials to enter the shell (1) in a strip shape; a cutting wheel (42) is arranged below the filter plate (41), the cutting wheel (42) is rotatably arranged below the filter plate (41) through a shaft, and the cutting wheel (42) is used for segmenting raw materials; the top of the shell (1) is provided with a gas passage (14), the gas passage (14) is connected with a one-way gas outlet valve of the cylinder (12) through a pipeline, the gas passage (14) is communicated with the feed port (4), the communicated part is positioned on the same straight line with the cutting wheel (42), and the gas passage (14) is used for blowing the cutting wheel (42) to rotate.
4. A polyurethane foam maker as set forth in claim 1, wherein: a plurality of groups of second stirring rods (9) are further arranged on the connecting shaft (3), the second stirring rods (9) and the first stirring rods (5) are alternately arranged in the vertical direction, and the second stirring rods (9) are used for stirring raw materials; no. two puddler (9) tip rotates and installs brush (91), and brush (91) are located between upper and lower adjacent two sets of cylinder (12), and brush (91) are used for brushing the raw materials of adhesion between adjacent cylinder (12) except that.
5. A polyurethane foam maker as set forth in claim 4, wherein: the polytetrafluoroethylene coating is coated on the connecting shaft (3), and the polytetrafluoroethylene coating is coated on the first stirring rod (5), the second stirring rod (9) and the magnetic ring (51), so that the polytetrafluoroethylene coating prevents raw materials from being adhered to the connecting shaft (3), the first stirring rod (5), the second stirring rod (9) and the magnetic ring (51).
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| CN201811053006.XA CN109262938B (en) | 2018-09-10 | 2018-09-10 | Polyurethane foaming machine |
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| CN201811053006.XA CN109262938B (en) | 2018-09-10 | 2018-09-10 | Polyurethane foaming machine |
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| CN109262938B true CN109262938B (en) | 2020-11-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110000924B (en) * | 2019-02-22 | 2021-11-30 | 佛山市路路通混凝土有限公司 | A concrete mixing device for building engineering's long service life |
| CN109940902B (en) * | 2019-04-13 | 2021-10-01 | 威海伙伴复合材料有限公司 | Carbon fiber tube forming device, method for processing carbon fiber tube and carbon fiber tube |
| CN110253816B (en) * | 2019-08-02 | 2020-01-14 | 山东筑中新材料有限公司 | Chemical material polyurethane foaming machine |
| CN110480912B (en) * | 2019-09-09 | 2020-05-22 | 恒诚航空科技(南通)有限公司 | Foaming system and method for manufacturing foamed plastic |
| CN111236005B (en) * | 2020-01-13 | 2021-11-05 | 浦江县沥青拌和有限公司 | Road asphalt is laid and is used foaming equipment |
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| EP0786286A1 (en) * | 1996-01-23 | 1997-07-30 | Foaming Technologies Cardio B.V. | Apparatus and process for the production of frothed polyurethane foams |
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