CN111660591A - Hollow plate preparation method and mechanism - Google Patents
Hollow plate preparation method and mechanism Download PDFInfo
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- CN111660591A CN111660591A CN202010523293.7A CN202010523293A CN111660591A CN 111660591 A CN111660591 A CN 111660591A CN 202010523293 A CN202010523293 A CN 202010523293A CN 111660591 A CN111660591 A CN 111660591A
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- plate
- feeding
- mixing
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- plasticizing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D24/00—Producing articles with hollow walls
Abstract
The invention discloses a method and a mechanism for preparing a hollow plate, which comprises the following steps: adding the proportioned materials, and mixing and accurately feeding the materials by a plurality of groups of weightlessness scales; continuously mixing and plasticizing the mixed materials under the condition of high speed and high temperature; after mixing and plasticizing, feeding the mixture into a double-screw extruder for continuous conveying and plasticizing, reducing the moisture of the material by vacuumizing, and feeding the material into a die after screen changing and extrusion; carrying out vacuum shaping and cooling after the die is extruded and molded; flattening the plate after vacuum forming; cooling after flattening the plate; and finally, cutting the cooled plate to obtain the hollow plate. The advantages are that: the high-speed forming can be realized without a chilled water system, a large amount of energy is saved, and the efficiency is improved; carrying out secondary heating and stretching on the hollow plate to eliminate prestress so as to flatten the plate; greatly improving the production efficiency and the product quality.
Description
Technical Field
The invention relates to a preparation method and a mechanism of a hollow plate, and belongs to the technical field of powder preparation.
Background
The hollow board is also called hollow grid board, universal board and double-wall extrusion board, and is formed by extrusion molding polypropylene (PP/PE) as main raw material, has the characteristics of light weight (hollow structure), no toxicity, no pollution, water resistance, shock resistance, aging resistance, corrosion resistance, rich color and the like, has more and more approved excellent environmental protection performance, and is widely applied to the industries of electronics, packaging, machinery, light industry, post, food, medicine, pesticide, household electrical appliances, advertisement, decoration, stationery, optomagnetic technology, bioengineering, medicine and health and the like.
At present, high-filling powder is difficult to granulate by using a common extruder, the powder in the market is low-content powder, and the high-content powder cannot be produced; the processing of the existing hollow plate is realized by two steps, wherein the first step is to perform double-screw granulation firstly, and the second step is to perform single-screw extrusion molding to form the hollow plate after granulation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method and a mechanism for preparing a hollow plate.
In order to solve the technical problem, the invention provides a preparation method of a hollow plate, which comprises the following steps:
adding the proportioned materials, and mixing and accurately feeding the materials by a plurality of groups of weightlessness scales; continuously mixing and plasticizing the mixed materials under the condition of high speed and high temperature; after mixing and plasticizing, feeding the mixture into a double-screw extruder for continuous conveying and plasticizing, reducing the moisture of the material by vacuumizing, and feeding the material into a die after screen changing and extrusion; carrying out vacuum shaping and cooling after the die is extruded and molded; flattening the plate after vacuum forming; cooling after flattening the plate; and finally, cutting the cooled plate to obtain the hollow plate.
Further, after feeding, the materials are conveyed to a plurality of groups of weightlessness scales in a negative pressure feeding and mixing mode.
A hollow plate preparation mechanism comprising:
the device comprises a batch feeder, a plurality of groups of weightless scales, a continuous internal mixer, a double-screw extruder, a mould, a vacuum shaping device, a primary traction device, an oven device, a cooling device, a secondary traction device and a cutting machine;
the batch feeder is used for feeding proportioned materials;
the plurality of groups of weightless scales are used for mixing and accurately feeding materials;
the continuous internal mixer is used for continuously mixing and plasticizing the mixed materials under the condition of high speed and high temperature;
the double-screw extruder is used for continuously conveying and plasticizing the continuously mixed and plasticized material, reducing the moisture of the material by vacuumizing, and then feeding the material into a die after being extruded by a screen;
the die is used for extruding and molding the material output by the double-screw extruder;
the vacuum shaping device is used for carrying out vacuum shaping and cooling on the formed plate output by the die;
the primary traction device is used for drawing the shaped and cooled plate to the oven device;
the oven device is used for carrying out flattening treatment on the plate;
the cooling device is used for cooling the plate after the leveling treatment;
the secondary traction device is used for drawing the flattened plate into a cutting machine;
and the cutting machine is used for cutting the cooled plate to obtain the hollow plate.
Further, the device also comprises a vacuum suction machine which is used for conveying the materials in the batch feeder to a plurality of groups of weightlessness scales in a negative pressure feeding and mixing mode.
Furthermore, the vacuum setting device adopts a mode of setting and cooling in a staggered mode of the heat convection system.
Furthermore, the oven device adopts an infrared heating oven device and is used for carrying out secondary heating and stretching on the plate through an infrared heating pipe to eliminate prestress, so that the plate is flat.
And the material supplementing bin is used for supplementing the powder or the aggregate of the plurality of weightless scales, so that the weightless scales are always in a material state.
The invention achieves the following beneficial effects:
the material is subjected to mixing and plasticizing and then enters a double-screw extruder to be continuously conveyed and plasticized, the moisture of the material is reduced to the minimum by vacuumizing, and the material enters a die after being extruded by a screen changing; the die enters vacuum shaping after extrusion molding, the vacuum shaping adopts the display and staggering of a heat convection system, the high-precision shaping and cooling are ensured, and in the aspect of the shaping of the hollow plate, the high-speed shaping can be realized without a chilled water system, so that a large amount of energy is saved, and the efficiency is improved; after vacuum forming, the plate enters an infrared heat oven device through a tractor, and an infrared heating tube is adopted to carry out secondary heating and stretching on the hollow plate to eliminate prestress, so that the plate is flat; after the drying oven enters a cooling device, the hollow plate is cooled; finally, the product enters a slitting device through a tractor, is cut according to the actual width, finally enters a material placing frame to be put in storage, can be processed into a product required by a customer, and greatly improves the production efficiency and the product quality.
Drawings
FIG. 1 is a schematic diagram of the mechanism for preparing the hollow plate according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
A preparation method of a hollow plate comprises the following steps:
50-60% of powder (talcum powder and calcium carbonate), 40-50% of granules (such as PP and PE) and a small amount of auxiliary agent are added, and the materials are mixed and accurately fed through three groups of weight loss scales; continuously mixing and plasticizing the mixed materials under the condition of high speed and high temperature; after mixing and plasticizing, feeding the mixture into a double-screw extruder for continuous conveying and plasticizing, reducing the moisture of the material by vacuumizing, and feeding the material into a die after screen changing and extrusion; carrying out vacuum shaping and cooling after the die is extruded and molded; flattening the plate after vacuum forming; cooling after flattening the plate; and finally, cutting the cooled plate to obtain the hollow plate.
In this embodiment, the materials are fed to a batch feeder, and then conveyed to a plurality of sets of weightlessness scales by means of negative pressure feeding and mixing.
As shown in fig. 1, a hollow plate preparation mechanism includes:
the device comprises a batch feeder 1, a plurality of groups of weightless scales 2, a continuous internal mixer 3, a double-screw extruder 4, a mould 5, a vacuum shaping device 6, a primary traction device 7, an oven device 8, a cooling device 9, a secondary traction device 10 and a cutting machine 11;
the batch feeder 1 is used for feeding proportioned materials;
the plurality of groups of weightless scales 2 are used for mixing and accurately feeding materials;
the continuous internal mixer 3 is used for continuously mixing and plasticizing the mixed materials under the high-speed and high-temperature conditions;
the double-screw extruder 4 is used for continuously conveying and plasticizing the continuously mixed and plasticized material, reducing the moisture of the material by vacuumizing, and then feeding the material into a die after being extruded by a screen change;
the die 5 is used for extruding and molding the material output by the double-screw extruder;
the vacuum shaping device 6 is used for carrying out vacuum shaping and cooling on the formed plate output by the die;
the primary traction device 7 is used for drawing the shaped and cooled plate to the oven device;
the oven device 8 is used for carrying out flattening treatment on the plate;
the cooling device 9 is used for cooling the plate after the leveling treatment;
the secondary traction device 10 is used for drawing the flattened plate into a cutting machine;
and the cutting machine 11 is used for cutting the cooled plate to obtain the hollow plate.
In this embodiment, the system further comprises a vacuum suction machine 12, which is used for conveying the materials in the batch feeder to a plurality of sets of weightlessness scales in a negative pressure feeding and mixing manner.
In this embodiment, the vacuum setting device 6 adopts a setting and cooling mode of a thermal convection system in which the setting and cooling modes are staggered.
In this embodiment, the oven device 8 is an infrared heating oven device, and is configured to perform secondary heating and stretch to the plate through an infrared heating pipe to remove a prestress, so that the plate is flat.
In this embodiment, the system further includes a supplement bin 13 for supplementing the powder or the aggregate of the plurality of weightlessness scales, so that the weightlessness scales are always in a material state.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The preparation method of the hollow plate is characterized by comprising the following steps of:
adding the proportioned materials, and mixing and accurately feeding the materials by a plurality of groups of weightlessness scales; continuously mixing and plasticizing the mixed materials under the condition of high speed and high temperature; after mixing and plasticizing, feeding the mixture into a double-screw extruder for continuous conveying and plasticizing, reducing the moisture of the material by vacuumizing, and feeding the material into a die after screen changing and extrusion; carrying out vacuum shaping and cooling after the die is extruded and molded; flattening the plate after vacuum forming; cooling after flattening the plate; and finally, cutting the cooled plate to obtain the hollow plate.
2. The method of claim 1, wherein the material is fed and then fed to a plurality of sets of weightless scales by negative pressure feeding and mixing.
3. A hollow plate preparation mechanism, comprising:
the device comprises a batch feeder, a plurality of groups of weightless scales, a continuous internal mixer, a double-screw extruder, a mould, a vacuum shaping device, a primary traction device, an oven device, a cooling device, a secondary traction device and a cutting machine;
the batch feeder is used for feeding proportioned materials;
the plurality of groups of weightless scales are used for mixing and accurately feeding materials;
the continuous internal mixer is used for continuously mixing and plasticizing the mixed materials under the condition of high speed and high temperature;
the double-screw extruder is used for continuously conveying and plasticizing the continuously mixed and plasticized material, reducing the moisture of the material by vacuumizing, and then feeding the material into a die after being extruded by a screen;
the die is used for extruding and molding the material output by the double-screw extruder;
the vacuum shaping device is used for carrying out vacuum shaping and cooling on the formed plate output by the die;
the primary traction device is used for drawing the shaped and cooled plate to the oven device;
the oven device is used for carrying out flattening treatment on the plate;
the cooling device is used for cooling the plate after the leveling treatment;
the secondary traction device is used for drawing the flattened plate into a cutting machine;
and the cutting machine is used for cutting the cooled plate to obtain the hollow plate.
4. The mechanism of claim 3, further comprising a vacuum feeder for feeding the material from the feeder to the plurality of sets of weightless scales by negative pressure feeding and mixing.
5. The hollow-panel preparation mechanism of claim 3, wherein said vacuum setting device employs an array-staggered setting and cooling scheme of a thermal convection system.
6. The mechanism of claim 3, wherein the oven device is an infrared heating oven device, and is configured to perform secondary heating and stretching on the plate by using an infrared heating pipe to relieve the prestress, so as to flatten the plate.
7. The mechanism of claim 3, further comprising a replenishment bin for replenishing the powder or pellets of the plurality of weightless scales to keep the weightless scales in a charged state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010523293.7A CN111660591A (en) | 2020-06-10 | 2020-06-10 | Hollow plate preparation method and mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010523293.7A CN111660591A (en) | 2020-06-10 | 2020-06-10 | Hollow plate preparation method and mechanism |
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| CN111660591A true CN111660591A (en) | 2020-09-15 |
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| CN202010523293.7A Pending CN111660591A (en) | 2020-06-10 | 2020-06-10 | Hollow plate preparation method and mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114763420A (en) * | 2021-01-13 | 2022-07-19 | 孙利 | Hollow plate and production process thereof |
| BE1029523A1 (en) | 2021-06-23 | 2023-01-24 | Qingdao sanyi plastic machinery co ltd | Plank production line |
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| CN109265864A (en) * | 2018-09-17 | 2019-01-25 | 黄勇洪 | A kind of environment-friendly PVC tubing |
| CN208593049U (en) * | 2018-05-30 | 2019-03-12 | 马宏 | Stone modeling is high to fill hollow curve reinforcing rib packaging plate equipment |
| CN209801860U (en) * | 2019-02-21 | 2019-12-17 | 佛山市顺德区美的饮水机制造有限公司 | Circulating liquid refrigerating system and refrigerating equipment |
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| CN101323176A (en) * | 2007-06-11 | 2008-12-17 | 江苏四方机械集团有限公司 | Method for preparing plastic wood compound material/rigid foam composite and light weight type wall plate |
| CN101648415A (en) * | 2009-08-28 | 2010-02-17 | 南京诚盟塑料机械实业有限公司 | Extruding and pelleting equipment of 35KV-110KV grade XLPE cross-linking insulated cable material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114763420A (en) * | 2021-01-13 | 2022-07-19 | 孙利 | Hollow plate and production process thereof |
| BE1029523A1 (en) | 2021-06-23 | 2023-01-24 | Qingdao sanyi plastic machinery co ltd | Plank production line |
| BE1029523B1 (en) * | 2021-06-23 | 2023-01-30 | Qingdao sanyi plastic machinery co ltd | Plank production line |
| US11872794B2 (en) | 2021-06-23 | 2024-01-16 | Qingdao Sanyi Plastic Machinery Co., Ltd. (Cn) | Sheet production line |
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Application publication date: 20200915 |
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| RJ01 | Rejection of invention patent application after publication |