CN216760557U - Polyurethane forming and foaming system - Google Patents
Polyurethane forming and foaming system Download PDFInfo
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- CN216760557U CN216760557U CN202122740858.XU CN202122740858U CN216760557U CN 216760557 U CN216760557 U CN 216760557U CN 202122740858 U CN202122740858 U CN 202122740858U CN 216760557 U CN216760557 U CN 216760557U
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- storage tank
- foaming
- drying tunnel
- metering pump
- polyurethane forming
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Abstract
The utility model discloses a polyurethane forming foaming system, which comprises a batching tank, a material storage tank, a metering pump, a mixer, a coating head, a foaming drying tunnel, a drying tunnel, a transmission device and a material receiving device, the proportioning tank and the storage tank are flexibly connected with the metering pump through pipelines, the proportioning tank and the storage tank are respectively of tank body structures arranged in parallel, the metering pump is arranged below the storage tank, an inlet pipe section of the metering pump is connected with the outlet end of the mixer, the outlet pipe section of the metering pump is connected with the inlet end of the mixer, the discharge port of the storage tank is provided with a coating head, the discharge port of the storage tank is respectively connected with the foaming drying tunnel, the drying tunnel and the material receiving device, the foaming drying tunnel, the drying tunnel and the material receiving device are respectively connected with the transmission device, and a belt type foaming line is arranged on a conveying belt of the transmission device. Like this, through the automatic rolling shaping, but serialization production has effectively improved production efficiency.
Description
Technical Field
The utility model relates to the technical field of polyurethane foam production, in particular to a polyurethane forming and foaming system.
Background
Polyurethane is a new organic polymer material, is known as 'fifth major plastic', is used as a polymer material with the characteristics of high strength, tear resistance, wear resistance and the like, and is widely applied to the fields of daily life, industrial and agricultural production, medicine and the like. With the progress of medical technology, people have a rapidly increasing trend, medical polyurethane foam mainly depends on import, the medical polyurethane foam in China is influenced by foaming equipment, the production process of a polyurethane forming foaming system in the prior art is immature, the product quality is unstable, continuous production which can not meet medical requirements can be realized, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a polyurethane forming and foaming system.
The polyurethane forming and foaming system provided by the utility model comprises a batching tank, a material storage tank, a metering pump, a mixer, a coating head, a foaming drying tunnel, a drying tunnel, a transmission device and a material receiving device, the mixing tank and the storage tank are flexibly connected with the metering pump through pipelines, the mixing tank and the storage tank are respectively of tank body structures which are arranged in parallel, the metering pump is arranged below the storage tank, an inlet pipe section of the metering pump is connected with the outlet end of the mixer, the outlet pipe section of the metering pump is connected with the inlet end of the mixer, the discharge port of the storage tank is provided with a coating head, the discharge port of the material storage tank is respectively connected with the foaming drying tunnel, the drying tunnel and the material receiving device, the foaming drying channel, the drying channel and the material receiving device are respectively connected with a transmission device, and a belt type foaming line is arranged on a conveying belt of the transmission device; install variable-speed oar formula agitator, temperature control device and inverter motor on the storage tank, the storage tank top is equipped with inverter motor, variable-speed oar formula agitator is installed to inverter motor's lower extreme, just variable-speed oar formula agitator sets up the internal side of jar of storage tank, the external side of jar of storage tank is equipped with temperature control device, inverter motor, temperature control device all are connected with the power.
A filter is arranged between the storage tank and the metering pump. And stirring paddles are arranged at two ends of the variable speed paddle type stirrer. The metering pump adopts a stainless steel gear metering pump; the mixer is a multistage shear type milling mixer. The coating head comprises an upper roller shaft and a lower roller shaft, the upper roller shaft and the lower roller shaft are arranged in parallel and are respectively connected through a connecting piece, and the distance between the upper roller shaft and the lower roller shaft is adjustable. The drying tunnel adopts a far infrared device or a microwave heating device, and the far infrared device or the microwave heating device is connected with a power supply. The material receiving device is provided with a light source sensor or a tension sensor, and the light source sensor or the tension sensor is connected with a power supply; when the inductor senses that the length of the material changes, the material receiving device automatically winds.
The polyurethane forming and foaming system provided by the utility model accelerates the production of foamed plastic through the foaming drying tunnel and the drying tunnel, and is automatically rolled and formed through the material receiving device, so that continuous production can be realized, the stability of the product quality is improved, the continuous production of medical requirements can be met, and the production efficiency of the foamed plastic is effectively improved.
Drawings
Fig. 1, 2 and 3 are schematic structural diagrams of a polyurethane forming and foaming system according to a first embodiment of the present invention.
Wherein:
1-a variable frequency motor; 2-a temperature control device; 3-a stirrer; 4-a metering pump; 5-a filter; 6-coating head; 7-foaming drying tunnel; 8-tape foaming line; 9-drying the oven; 10-a far-infrared heating device; 11-a sensing device; 12-a storage tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
As shown in fig. 1, 2 and 3, this embodiment provides a polyurethane forming and foaming system, which includes a dispensing tank (not shown), a storage tank 12, a metering pump 4, a mixer (not shown), a coating head 6, a foaming drying tunnel 7, a drying tunnel 9, a transmission device and a receiving device 11, wherein the dispensing tank and the storage tank 12 are flexibly connected to the metering pump 4 through a pipeline, the dispensing tank and the storage tank 12 are respectively of a tank structure arranged in parallel, the metering pump 4 is arranged below the storage tank 12, an inlet pipe section of the metering pump 4 is connected to an outlet end of the mixer, an outlet pipe section of the metering pump 4 is connected to an inlet end of the mixer, a discharge port of the storage tank 12 is provided with the coating head 6, a discharge port of the storage tank 12 is respectively connected to the foaming drying tunnel 7, the drying tunnel 9 and the receiving device 11, and the foaming drying tunnel 7, the drying tunnel 9 and the material receiving device 11 are respectively connected with a transmission device, and a belt type foaming line 8 is arranged on a conveying belt of the transmission device.
The technical personnel in the field can understand that the polyurethane forming and foaming system provided by the embodiment accelerates the production of foamed plastic through the foaming drying tunnel 7 and the drying tunnel 9, and can be continuously produced by automatically rolling and forming through the material receiving device 11, so that the stability of the product quality is improved, the continuous production of medical requirements can be met, and the production efficiency of the foamed plastic is effectively improved. The batching tank is used for online batching of white materials in foaming raw materials to ensure continuous production of foamed cotton, and the batching tank and the material storage tank 12 have the same structure, so that the detailed description is omitted; the temperature control device 2 is arranged on the batching tank and is conveyed into the material storage tank 12 through the metering pump 4; the polyurethane rigid foam combined polyether is one of main raw materials of polyurethane rigid foam, is also called white material, is commonly called black and white material together with polymeric MDI, and the white material comprises a polyether monomer, a foam stabilizer, a cross-linking agent, a catalyst, a foaming agent and other components. The metering pump 4 is used for accurately metering materials and continuously discharging the materials. The mixer is used for high-speed mixing of foaming materials, and a high-speed grinding shaft is adopted, so that the materials are uniformly mixed under the condition of high viscosity difference. The coating head 6 uses a two-roll extrusion coating to ensure a uniform foam thickness. The foaming drying tunnel 7 is designed in parallel, a conveying belt transmission device is adopted, the influence of protective materials on foaming of the foamed plastic in the foaming process is avoided, and meanwhile, the foaming speed and effect of the foamed plastic are adjusted through temperature control of all sections. The foaming drying tunnel 7 adopts the temperature-controlled foaming drying tunnel 7, so that the foaming speed of the foamed plastic and the opening effect of the foam can be adjusted through temperature adjustment while the foam effect is ensured; the drying tunnel is adopted to carry out fine control on the foaming process, so as to ensure the stability and controllability of the foaming process. The belt-type foaming line 8 is widely applied due to the characteristics of compact structure, small occupied area, less environmental pollution, high working efficiency, safe and reliable production and the like.
Further, a variable-speed paddle stirrer 3, a temperature control device 2 and a variable-frequency motor 1 are mounted on the storage tank 12, the variable-speed motor 1 is arranged at the top of the storage tank 12, the variable-speed paddle stirrer 3 is mounted at the lower end of the variable-frequency motor 1, the variable-speed paddle stirrer 3 is arranged on the inner side of the storage tank 12, the temperature control device 2 is arranged on the outer side of the storage tank 12, and the variable-speed paddle stirrer 1 and the temperature control device 2 are both connected with a power supply; a filter 5 is arranged between the material storage tank 12 and the metering pump 4; and stirring paddles are arranged at two ends of the variable speed paddle type stirrer (3).
As can be understood by those skilled in the art, the material storage tanks 12 are used for storing raw materials for polyurethane foaming, each material storage tank 12 can be independently controlled in temperature, the material temperature is ensured to meet the requirements of the production process, and the variable speed paddle type stirrer 3 is arranged to ensure the material temperature and the uniformity under the condition of extremely high viscosity difference. The temperature control device 2 can be used for heating or refrigerating to realize bidirectional regulation; meanwhile, the variable stirring device 3 can realize stirring and mixing of materials with different viscosities. The filter 5 is used for filtering impurities in the proportioning tank and the storage tank 12.
Further, the metering pump 4 is a stainless steel gear metering pump 4.
As can be understood by those skilled in the art, the high-precision stainless steel gear metering pump 4 is adopted in the embodiment, so that the safety of the material is ensured while the metering accuracy is ensured, and the deviation of the material proportion is ensured not to exceed 1%.
Further, the mixer is a multistage shear type milling mixer.
As can be understood by those skilled in the art, through the mixer, the foaming raw materials with high viscosity difference can be ensured to be uniformly mixed, and meanwhile, the mixing process can be uniformly and controllably realized by arranging the variable-frequency control motor, and the cooling device is arranged outside the mixer to control the speed of the foaming process.
Further, the coating head 6 comprises an upper roll shaft and a lower roll shaft, the upper roll shaft and the lower roll shaft are arranged in parallel and are respectively connected through connecting pieces, and the distance between the upper roll shaft and the lower roll shaft is adjustable.
As can be understood by those skilled in the art, the roller coating device is adopted in the embodiment, the thickness of the foamed plastic is adjusted by adjusting the gap between the upper roller and the lower roller, and meanwhile, kraft paper is adopted for isolation on the upper layer and the lower layer of the foamed plastic, so that the phenomena of adhesion and unevenness of the foaming material are avoided.
Further, the drying tunnel adopts a far infrared device 10 or a microwave heating device, and the far infrared device 10 or the microwave heating device is connected with a power supply.
As can be understood by those skilled in the art, the design of far infrared or microwave heating is adopted, so that the materials are uniformly heated from inside to outside, meanwhile, the drying tunnel is kept in a micro-negative pressure state, the rapid volatilization of water vapor is ensured, and the drying rate is effectively improved
Further, a light source sensor or a tension sensor is arranged on the material receiving device 11, and the light source sensor or the tension sensor is connected with a power supply; when the inductor senses that the length of the material changes, the material receiving device 11 automatically winds.
Those skilled in the art can understand that the induction tension-free winding design is adopted, and through the light source inductor or the tension inductor, when the light source inductor induces the length change of the material, the material receiving device 11 automatically winds the material, so that the material is ensured to be uniformly and regularly wound, and the stretching deformation of the foamed plastic is avoided.
As can be understood by those skilled in the art, the prepolymer and the water phase are respectively filled into a storage tank, wherein the water phase is added into the storage tank after being configured in a dosing tank, the prepolymer is set to 35 ℃, the water phase is set to 5 ℃, and after the specified temperature is reached, the prepolymer and the water phase are mixed by a metering pump according to the ratio of 100: 55, spraying the mixture on kraft paper after stirring at high speed in a stirrer, namely more than 3000 rpm, coating and foaming through upper and lower roll shafts of a coating head, wherein the foaming gap is 0.45mm, and the temperature of a foaming oven is 30 ℃, 40 ℃, 50 ℃ and 70 ℃ in sequence; after foaming is finished, the foam enters a drying tunnel, the temperature of the drying tunnel is 105 ℃, 110 ℃ and 105 ℃ for drying, and the foam is rolled by induction material collection to obtain the foam with the thickness of 5mm and the density of 80kg/m3The water content is less than 3 percent, and the breadth is 45 cm.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a polyurethane shaping foaming system, its characterized in that, including batching jar, storage tank (12), measuring pump (4), blender, coating head (6), foaming drying tunnel (7), dry drying tunnel (9), transmission and material collecting device (11), batching jar with storage tank (12) through the pipeline with measuring pump (4) flexonics, batching jar with storage tank (12) are the tank structure who sets up side by side respectively, measuring pump (4) set up storage tank (12) below, the import pipeline section of measuring pump (4) with the exit end of blender is connected, the export pipeline section of measuring pump (4) with the entrance connection of blender, the discharge gate of storage tank (12) is equipped with coating head (6), the discharge gate of storage tank (12) is connected respectively foaming drying tunnel (7), The drying tunnel (9) and the material receiving device (11), and the foaming tunnel (7), the drying tunnel (9) and the material receiving device (11) are respectively connected with a transmission device; install variable speed paddle agitator (3), temperature control device (2) and inverter motor (1) on storage tank (12), storage tank (12) top is equipped with inverter motor (1), variable speed paddle agitator (3) are installed to the lower extreme of inverter motor (1), just variable speed paddle agitator (3) set up the internal side of jar of storage tank (12), the external side of jar of storage tank (12) is equipped with temperature control device (2), inverter motor (1), temperature control device (2) all are connected with the power.
2. Polyurethane forming and foaming system according to claim 1, wherein a filter (5) is provided between the supply tank (12) and the metering pump (4).
3. Polyurethane forming and foaming system according to claim 2, wherein the variable speed paddle agitator (3) is provided with agitator paddles at both ends.
4. Polyurethane forming and foaming system according to claim 3, wherein the metering pump (4) is a stainless steel gear metering pump (4).
5. The polyurethane forming foam system of claim 4, wherein the mixer is a multi-stage shear mill mixer.
6. The polyurethane forming and foaming system according to claim 5, wherein the coating head (6) comprises an upper roller and a lower roller, the upper roller and the lower roller are arranged in parallel and are respectively connected through a connecting piece, and the distance between the upper roller and the lower roller is adjustable.
7. The polyurethane forming and foaming system according to claim 6, wherein the drying tunnel is a far infrared device (10) or a microwave heating device, and the far infrared device (10) or the microwave heating device is connected with a power supply.
8. The polyurethane forming and foaming system according to claim 7, wherein the material receiving device (11) is provided with a light source sensor or a tension sensor, and the light source sensor or the tension sensor is connected with a power supply; when the inductor senses that the length of the material changes, the material receiving device (11) automatically winds.
9. The polyurethane forming and foaming system according to claim 8, wherein the conveyor belt of the transmission device is provided with a belt type foaming line (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122740858.XU CN216760557U (en) | 2021-11-10 | 2021-11-10 | Polyurethane forming and foaming system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122740858.XU CN216760557U (en) | 2021-11-10 | 2021-11-10 | Polyurethane forming and foaming system |
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| Publication Number | Publication Date |
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| CN216760557U true CN216760557U (en) | 2022-06-17 |
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| CN202122740858.XU Active CN216760557U (en) | 2021-11-10 | 2021-11-10 | Polyurethane forming and foaming system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115157528A (en) * | 2022-07-21 | 2022-10-11 | 浙江谦达机电科技有限公司 | Foaming machine head and foaming machine applying same |
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2021
- 2021-11-10 CN CN202122740858.XU patent/CN216760557U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115157528A (en) * | 2022-07-21 | 2022-10-11 | 浙江谦达机电科技有限公司 | Foaming machine head and foaming machine applying same |
| CN115157528B (en) * | 2022-07-21 | 2024-03-05 | 浙江谦达机电科技有限公司 | Foaming machine head and foaming machine using same |
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