CN114474549A - Preparation process and equipment of physical foaming material - Google Patents
Preparation process and equipment of physical foaming material Download PDFInfo
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- CN114474549A CN114474549A CN202111612138.3A CN202111612138A CN114474549A CN 114474549 A CN114474549 A CN 114474549A CN 202111612138 A CN202111612138 A CN 202111612138A CN 114474549 A CN114474549 A CN 114474549A
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- cylinder
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- foaming
- extrusion
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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
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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
- B29C44/3415—Heating or cooling
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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
- B29C44/3446—Feeding the blowing agent
Abstract
The invention discloses a preparation device of a physical foaming material, which comprises an extrusion unit, a storage unit and a shaping unit, wherein the extrusion unit comprises a base, an extrusion motor arranged on one side of the base, an extrusion sleeve arranged on the other side of the base, the storage unit comprises an outer heating cylinder, an inner storage cylinder arranged on the inner side of the outer heating cylinder, and a stirring motor arranged on the inner storage cylinder, the shaping unit comprises a lower die, an upper die arranged above the lower die, and a plurality of guide rods symmetrically arranged on the lower die, and materials are conveyed between the storage unit and the shaping unit through a metering pump. According to the invention, the raw materials extruded by the extrusion unit are directly led into the internal storage cylinder for storage, are heated and insulated by the heating element in the external heating cylinder, and are metered and output to the shaping unit by the metering pump, so that the production fault tolerance rate is greatly improved by the assembly line type process mode.
Description
Technical Field
The invention relates to the technical field of foaming, in particular to a preparation process and equipment of a physical foaming material.
Background
Foaming is a general term for the forming method of making foam plastics, and is classified according to the manufacturing method of foam plastics and can be divided into two types: a method of preparing a foamed plastic by one process after compounding plastic raw materials for foaming is called a one-step foaming method, also called a direct method, and polyurethane foamed plastic is a typical representative thereof; the process for preparing foams by two steps is known as two-stage foaming, also known as batch process. In the two-stage foaming, the former process is called pre-foaming or pre-foaming, in which case the foam or beads are not yet sufficiently expanded and the density is also higher, so that the beads obtained are expandable beads. The latter process, referred to as post-foaming or secondary foaming, produces a fully expanded, low density final foam product.
The existing preparation process equipment is generally used for directly injecting molten raw materials into a mold for foaming and molding in foaming, but due to uncontrollable temperature in the middle process, the raw materials need to be foamed quickly after basic melting, the production fault tolerance rate is low, and an extruder needs to work simply and cannot be stopped.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the problems of the prior preparation process of the physical foaming material and the equipment thereof.
Therefore, the present invention aims at providing a preparation process of a physical foaming material and a device thereof, which aims at increasing the fault tolerance and controllability in the foaming production process.
In order to solve the technical problems, the invention provides the following technical scheme: a preparation device of a physical foaming material comprises an extrusion unit, a foaming unit and a control unit, wherein the extrusion unit comprises a base, an extrusion motor arranged on one side of the base, an extrusion sleeve arranged on the other side of the base, and a feeding cylinder arranged on the base and communicated with the extrusion sleeve, and a material conveying port of the extrusion sleeve is fixedly connected with an extrusion machine head;
the storing unit comprises an external heating cylinder, an internal storage cylinder arranged on the inner side of the external heating cylinder and a stirring motor arranged on the internal storage cylinder, the internal storage cylinder is communicated with the extruder head through a communicating pipe, a stirring mechanism is arranged in the internal storage cylinder, and the stirring mechanism is driven by the stirring motor;
the shaping unit comprises a lower die, an upper die arranged above the lower die, a plurality of guide rods symmetrically arranged on the lower die, and an upper die holder arranged on the guide rods, wherein a hydraulic cylinder is arranged on the upper die holder, and the hydraulic output end of the hydraulic cylinder penetrates through the upper die holder and is connected with the upper die;
wherein, the material is carried through the metering pump between storage unit and the design unit.
As a preferred scheme of the preparation process and the equipment thereof of the physical foaming material, the preparation process comprises the following steps: the stirring mechanism comprises a stirring main shaft fixedly arranged on the output end of the stirring motor, a plurality of connecting shafts arranged on the stirring main shaft, and helical blades arranged on the connecting shafts, wherein the connecting shafts are spirally distributed on the helical blades in a surrounding manner.
As a preferred scheme of the preparation process and the equipment thereof of the physical foaming material, the preparation process comprises the following steps: the inner side of the outer heating cylinder is provided with a heat-preservation inner container, the bottom side of the outer heating cylinder is provided with a plurality of electric heating pieces which are distributed in an annular uniform array manner, and the outer side of the outer heating cylinder is provided with a temperature controller for controlling the temperature of the electric heating pieces.
As a preferred scheme of the preparation process and the equipment thereof of the physical foaming material, the preparation process comprises the following steps: the outer heating cylinder is hermetically connected with the inner storage cylinder, and heat conducting oil is injected into the outer heating cylinder.
As a preferred scheme of the preparation process and the equipment thereof of the physical foaming material, the preparation process comprises the following steps: a forming cavity is arranged in the lower die, an inner frame is arranged in the forming cavity, and side lugs are symmetrically arranged on two sides of the edge of the inner frame.
As a preferred scheme of the preparation process and the equipment thereof of the physical foaming material, the preparation process comprises the following steps: one side of the inner frame is provided with a feeding hole, the feeding hole is communicated with a material conveying pipe of the metering pump, one side of the upper die is fixedly connected with a side sealing plate used for sealing the feeding hole, and the width of the side sealing plate is the same as that of the inner wall of the inner frame.
As a preferred scheme of the preparation process and the equipment thereof of the physical foaming material, the preparation process comprises the following steps: the inlet pipe of measuring pump runs through outer heating cylinder setting, and the bottom intercommunication of inlet pipe and interior storage cylinder.
A process for preparing a physically foamed material, the process comprising the steps of:
the method comprises the following steps: stirring a certain amount of basic polyether, polymer polyether, silicone oil, a cross-linking agent, a catalyst thereof, a foaming agent and water, and then pouring the mixture into an extrusion unit to extrude the mixture into a molten fluid material;
step two: introducing a raw material extruded by an extrusion head on one side of an extrusion unit into a storage unit, continuously stirring the raw material by a stirring assembly, and controlling the temperature to heat the raw material to ensure that the raw material is in a molten fluid state, wherein the heating temperature is not lower than 200 ℃;
step three: quantitatively feeding the raw materials into a shaping unit through a metering pump, enabling the raw materials to enter a lower die and then a hydraulic cylinder to work, and then controlling an upper die to be closed;
step four: and (3) carrying out foaming work in the mould, controlling the foaming time to be-min, opening the mould after foaming is finished, and taking out the inner frame so as to facilitate the taking-out work of the foaming material.
The invention has the beneficial effects that:
1. the raw materials extruded by the extrusion unit are directly led into the internal storage cylinder for storage, are heated and insulated by the heating element in the external heating cylinder, and are metered and output to the shaping unit by the metering pump, so that the production fault tolerance rate is greatly improved by the assembly line type process mode;
2. the stirring motor drives the connecting shafts to rotate, and the helical blades carry out helical stirring, so that the deposition of materials is avoided, and the mixing degree between the raw materials and the catalyst is increased;
3. mould carries out the compound die through pneumatic cylinder control, then the defeated material passageway of side shrouding automatic cutout, lets the raw materials at shaping intracavity foam molding, to the sheet after the shaping, the drawing of patterns work of the product of being convenient for is taken out the inside casing to the direct pulling side ear of accessible.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic view of the overall structure of a device for preparing a physically foamed material according to the present invention.
Fig. 2 is a schematic structural diagram of a shaping unit of a preparation device of a physical foaming material according to the present invention.
Fig. 3 is a schematic structural diagram of an external heating cylinder of a device for preparing a physical foaming material according to the present invention.
Fig. 4 is a schematic structural diagram of a stirring mechanism of a preparation device for a physical foaming material according to the present invention.
Fig. 5 is a schematic flow chart of a process for preparing a physical foaming material according to the present invention.
In the figure: 100-extrusion unit, 101-base, 102-extrusion motor, 103-feeding cylinder, 104-extrusion sleeve, 105-extrusion head, 200-storage unit, 201-external heating cylinder, 201 a-heat preservation inner container, 201 b-electric heating plate, 201 c-temperature controller, 202-internal storage cylinder, 203-stirring motor, 204-stirring main shaft, 205-connecting shaft, 206-helical blade, 300-metering pump, 400-shaping unit, 401-lower die, 401 a-forming cavity, 401 b-inner frame, 401 c-feeding hole, 401 d-side lug, 402-upper die, 402 a-side sealing plate, 403-guide rod, 404-upper die holder and 405-hydraulic cylinder.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Example 1
Referring to fig. 1 to 5, in an embodiment of the present invention, an apparatus for preparing a physically foamed material is provided, including an extrusion unit 100, a stock unit 200, a sizing unit 400, and a metering pump 300.
The extrusion unit 100 comprises a base 101, an extrusion motor 102 arranged on one side of the base 101, an extrusion sleeve 104 arranged on the other side of the base 101, and a feeding cylinder 103 arranged on the base 101 and communicated with the extrusion sleeve 104, wherein a material conveying port of the extrusion sleeve 104 is fixedly connected with an extrusion machine head 105;
the material storage unit 200 comprises an external heating cylinder 201, an internal storage cylinder 202 arranged on the inner side of the external heating cylinder 201, and a stirring motor 203 arranged on the internal storage cylinder 202, wherein the external heating cylinder 201 is hermetically connected with the internal storage cylinder 202, heat conducting oil is injected into the external heating cylinder 201, so that the uniformity of temperature transmission is facilitated, the internal storage cylinder 202 is communicated with an extruder head 105 through a communication pipe, a stirring mechanism is arranged in the internal storage cylinder 202 and is driven by the stirring motor 203, specifically, the stirring mechanism comprises a stirring main shaft 204 fixedly arranged on the output end of the stirring motor 203, a plurality of connecting shafts 205 arranged on the stirring main shaft 204, and helical blades 206 arranged on the connecting shafts 205, the connecting shafts 205 are spirally distributed on the helical blades 206 in a surrounding manner, and raw materials which are extruded and melted are continuously rotated by the stirring main shaft 204, the connecting shafts 205 and the helical blades 206 to be fully stirred and mixed, furthermore, a heat preservation inner container 201a is arranged on the inner side of the outer heating cylinder 201, a plurality of electric heating pieces 201b are arranged on the bottom side of the outer heating cylinder 201, the plurality of electric heating pieces 201b are uniformly distributed in an annular array, a temperature controller 201c for controlling the temperature of the electric heating pieces 201b is arranged on the outer side of the outer heating cylinder 201, and the electric heating pieces 201b secondarily heat the raw materials in the inner storage cylinder 202 to keep the raw materials in a fluid state.
The shaping unit 400 comprises a lower die 401, an upper die 402 arranged above the lower die 401, a plurality of guide rods 403 symmetrically arranged on the lower die 401, and an upper die holder 404 arranged on the guide rods 403, wherein a hydraulic cylinder 405 is arranged on the upper die holder 404, a hydraulic output end of the hydraulic cylinder 405 penetrates through the upper die holder 404 to be connected with the upper die 402, a shaping cavity 401a is arranged in the lower die 401, an inner frame 401b is arranged in the shaping cavity 401a, side lugs 401d are symmetrically arranged on two sides of the edge of the inner frame 401b, the whole inner frame 401b can be taken out and separated by means of the side lugs 401d, and demolding work of a product is facilitated.
The material is conveyed between the storage unit 200 and the shaping unit 400 through the metering pump 300, a feed pipe of the metering pump 300 penetrates through the external heating cylinder 201 and is communicated with the bottom of the internal storage cylinder 202, a feed hole 401c is formed in one side of the internal frame 401b, the feed hole 401c is communicated with a feed conveying pipe of the metering pump 300, one side of the upper die 402 is fixedly connected with a side sealing plate 402a used for sealing the feed hole 401c, the width of the side sealing plate 402a is the same as that of the inner wall of the internal frame 401b, namely, when the upper die 402 is used for die assembly, the side sealing plate 402a can completely cover the feed hole 401c, and foaming and forming work inside the forming cavity 401a is achieved.
The preparation process applied to the preparation equipment of the physical foaming material specifically comprises the following steps:
the method comprises the following steps: stirring a certain amount of basic polyether, polymer polyether, silicone oil, a cross-linking agent, a catalyst thereof, a foaming agent and water, and pouring the mixture into an extrusion sleeve 104 from a feeding cylinder 103 to extrude the mixture into a molten fluid material;
step two: introducing the raw materials extruded by the extrusion head on one side of the extrusion unit 100 into the storage unit 200, namely the inner part of the inner storage cylinder 202, driving a stirring mechanism to continuously stir by using a stirring motor 203, and controlling an electric heating sheet 201b to heat the inner storage cylinder 202 by using a temperature controller 201c to ensure that the raw materials are in a molten fluid state, wherein the heating temperature is not lower than 200 ℃;
step three: quantitatively feeding raw materials into a shaping unit 400 through a metering pump 300, enabling the raw materials to enter a lower die 401 and then a hydraulic cylinder 405 to work, then controlling an upper die 402 to carry out die assembly, and automatically sealing a feeding hole 401c through a side sealing plate 402a during die assembly;
step four: foaming work is carried out in the mould, the foaming time is controlled to be 2-3min, the mould is opened after foaming is finished, and the inner frame 401b is taken out through the side lug 401d after the foaming belt is cooled, so that the foaming material can be conveniently taken out.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. A preparation equipment of physical foaming material is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the extruding unit (100) comprises a base (101), an extruding motor (102) arranged on one side of the base (101), an extruding sleeve (104) arranged on the other side of the base (101), and a feeding cylinder (103) arranged on the base (101) and communicated with the extruding sleeve (104), wherein a material conveying port of the extruding sleeve (104) is fixedly connected with an extruding machine head (105);
the storing unit (200) comprises an external heating cylinder (201), an internal storage cylinder (202) arranged on the inner side of the external heating cylinder (201), and a stirring motor (203) arranged on the internal storage cylinder (202), wherein the internal storage cylinder (202) is communicated with an extruder head (105) through a communicating pipe, a stirring mechanism is arranged in the internal storage cylinder (202), and the stirring mechanism is driven by the stirring motor (203);
the sizing unit (400) comprises a lower die (401), an upper die (402) arranged above the lower die (401), a plurality of guide rods (403) symmetrically arranged on the lower die (401), and an upper die holder (404) arranged on the guide rods (403), wherein a hydraulic cylinder (405) is arranged on the upper die holder (404), and the hydraulic output end of the hydraulic cylinder (405) penetrates through the upper die holder (404) to be connected with the upper die (402);
the material is conveyed between the material storage unit (200) and the shaping unit (400) through a metering pump (300).
2. The apparatus for preparing a physically foamed material according to claim 1, wherein: the stirring mechanism comprises a stirring main shaft (204) fixedly arranged on the output end of the stirring motor (203), a plurality of connecting shafts (205) arranged on the stirring main shaft (204), and helical blades (206) arranged on the connecting shafts (205), and the connecting shafts (205) are spirally distributed on the helical blades (206) in a surrounding manner.
3. The apparatus for preparing a physically foamed material according to claim 2, wherein: the inner side of the external heating cylinder (201) is provided with a heat preservation inner container (201a), the bottom side of the external heating cylinder (201) is provided with a plurality of electric heating pieces (201b), the electric heating pieces (201b) are distributed in an annular uniform array, and the outer side of the external heating cylinder (201) is provided with a temperature controller (201c) used for controlling the temperature of the electric heating pieces (201 b).
4. The apparatus for preparing a physically foamed material according to claim 3, wherein: the outer heating cylinder (201) is connected with the inner storage cylinder (202) in a sealing mode, and heat conducting oil is injected into the outer heating cylinder (201).
5. The apparatus for preparing a physically foamed material according to any one of claims 1 to 4, wherein: a forming cavity (401a) is arranged in the lower die (401), an inner frame (401b) is arranged in the forming cavity (401a), and side lugs (401d) are symmetrically arranged on two sides of the edge of the inner frame (401 b).
6. The apparatus for preparing a physically foamed material according to claim 5, wherein: one side of the inner frame (401b) is provided with a feeding hole (401c), the feeding hole (401c) is communicated with a conveying pipeline of the metering pump (300), one side of the upper die (402) is fixedly connected with a side sealing plate (402a) used for sealing the feeding hole (401c), and the width of the side sealing plate (402a) is the same as that of the inner wall of the inner frame (401 b).
7. The apparatus for preparing a physically foamed material according to claim 1, wherein: the feed pipe of measuring pump (300) runs through outer heating cylinder (201) setting, and the bottom intercommunication of feed pipe and interior storage cylinder (202).
8. A preparation process of a physical foaming material is characterized by comprising the following steps: the process comprises the following steps:
the method comprises the following steps: stirring a certain amount of basic polyether, polymer polyether, silicone oil, a cross-linking agent and a catalyst thereof, a foaming agent and water, and then pouring the mixture into an extrusion unit (100) to extrude the mixture into a molten fluid material;
step two: introducing a raw material extruded by an extrusion head at one side of an extrusion unit (100) into a storage unit (200), then continuously stirring the raw material by a stirring component, and controlling the temperature to heat the raw material to ensure that the raw material is in a molten fluid state, wherein the heating temperature is not lower than 200 ℃;
step three: quantitatively feeding raw materials into a shaping unit (400) through a metering pump (300), enabling a hydraulic cylinder (405) to work after the raw materials enter a lower die (401), and then controlling an upper die (402) to close the die;
step four: foaming work is carried out in the mould, the foaming time is controlled to be 2-3min, the mould is opened after foaming is finished, and meanwhile, the inner frame (401b) is taken out, so that the foaming material can be conveniently taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111612138.3A CN114474549A (en) | 2021-12-27 | 2021-12-27 | Preparation process and equipment of physical foaming material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111612138.3A CN114474549A (en) | 2021-12-27 | 2021-12-27 | Preparation process and equipment of physical foaming material |
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| CN114474549A true CN114474549A (en) | 2022-05-13 |
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| CN202111612138.3A Pending CN114474549A (en) | 2021-12-27 | 2021-12-27 | Preparation process and equipment of physical foaming material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117261085A (en) * | 2023-11-14 | 2023-12-22 | 淄博亚华信橡塑有限责任公司 | Foaming forming equipment for polyurethane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101484299A (en) * | 2006-08-16 | 2009-07-15 | 克劳斯玛菲科技有限公司 | Device and method for processing thermosetting plastics |
| CN110900923A (en) * | 2019-11-07 | 2020-03-24 | 湖南工业大学 | Starch foaming composite material extrusion pressing forming device and process thereof |
| JP2020069730A (en) * | 2018-10-31 | 2020-05-07 | 株式会社経営総合研究所 | Method of extrusion molding of sheathing board for concrete formwork and equipment thereof |
| CN112590100A (en) * | 2020-11-27 | 2021-04-02 | 格联特（漳州）轻工制品有限公司 | Preparation method of sponge pillow |
| CN214353739U (en) * | 2020-12-30 | 2021-10-08 | 济南泰德包装科技有限公司 | Modified polypropylene foaming bead former |
-
2021
- 2021-12-27 CN CN202111612138.3A patent/CN114474549A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101484299A (en) * | 2006-08-16 | 2009-07-15 | 克劳斯玛菲科技有限公司 | Device and method for processing thermosetting plastics |
| JP2020069730A (en) * | 2018-10-31 | 2020-05-07 | 株式会社経営総合研究所 | Method of extrusion molding of sheathing board for concrete formwork and equipment thereof |
| CN110900923A (en) * | 2019-11-07 | 2020-03-24 | 湖南工业大学 | Starch foaming composite material extrusion pressing forming device and process thereof |
| CN112590100A (en) * | 2020-11-27 | 2021-04-02 | 格联特（漳州）轻工制品有限公司 | Preparation method of sponge pillow |
| CN214353739U (en) * | 2020-12-30 | 2021-10-08 | 济南泰德包装科技有限公司 | Modified polypropylene foaming bead former |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117261085A (en) * | 2023-11-14 | 2023-12-22 | 淄博亚华信橡塑有限责任公司 | Foaming forming equipment for polyurethane |
| CN117261085B (en) * | 2023-11-14 | 2024-01-16 | 淄博亚华信橡塑有限责任公司 | Foaming forming equipment for polyurethane |
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