CN111469494A - Full-automatic semi-dry paper-plastic pressing production process - Google Patents
Full-automatic semi-dry paper-plastic pressing production process Download PDFInfo
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- CN111469494A CN111469494A CN202010460553.0A CN202010460553A CN111469494A CN 111469494 A CN111469494 A CN 111469494A CN 202010460553 A CN202010460553 A CN 202010460553A CN 111469494 A CN111469494 A CN 111469494A
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- Prior art keywords
- paper
- pressing
- automatic
- pulp
- molding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/0077—Shaping by methods analogous to moulding, e.g. deep drawing techniques
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
- D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
Abstract
The invention relates to the technical field of paper pulp molding production, and discloses a full-automatic semi-dry pressing paper pulp molding production process, which comprises the following specific steps: a pulp roll coating procedure: setting a paper roll raw material on a coating machine, adding an auxiliary agent into the raw material, and uniformly coating the auxiliary agent on the surface of a paper pulp roll by a coating process; and (3) die cutting: feeding the paper pulp roll coated with the auxiliary agent into a die cutting machine, and die-cutting the paper pulp roll into an initial blank of a product; automatic classification conveying procedure: conveying the die-cut product primary blank to a station of a half-dry paper pressing and molding machine through an AJV conveying trolley; automatic molding and pressing: pressing the primary blank of the product into paper-plastic products with various shapes by a semi-dry paper pressing and molding machine; the stacks are counted and transferred to packaging. The invention cancels the traditional slurry process, reduces the working procedures, has high automation degree, can reduce the labor input, saves the auxiliary agent, vacuum electric energy and heat energy, can be biodegraded, meets the environmental protection requirement, reduces the production cost and improves the production benefit of enterprises.
Description
Technical Field
The invention relates to the technical field of paper pulp molding, in particular to a full-automatic semi-dry paper-plastic pressing production process.
Background
Pulp molding is made by using pulp as a raw material to prepare pulp or adding water and an auxiliary agent in a proper proportion, and molding the pulp into products with various shapes by using a mold.
The existing wet-pressing pulp molding process comprises the following steps: pulping paperboard or roll paper to prepare white water into pulp with pulp content of 0.2-1%, adding chemicals meeting performance requirements, such as water-proof, oil-proof and strength-enhancing additives, and molding and hot-pressing into containers of various shapes; however, the process has various working procedures, and needs to be subjected to metering weighing, hydraulic pulping, pulp preparation, vacuum forming, hot press forming, cutting, inspection and sterilization packaging, and a complex pulping process, wherein after a dry pulp board or a roll paper board is metered and weighed, a hydraulic pulper is used for pulping, and then a large amount of water, a waterproof agent, an oil-proof agent and other auxiliaries are added, so that the concentration of the produced pulp is about 0.2-1%; forming a wet blank by vacuum suction filtration during slurry production; then the wet blank with the water content of 65-75% is heated and dried or pressed in a mould to be dried into a finished product, and the energy consumption is high; the process is complex, the production cost is high, and particularly various tray and dish products are produced; the labor is high, and particularly, a semi-automatic production line is more serious; the fixed assets are large in investment and poor in input-output ratio.
The existing laminating paper tray process comprises the following steps: a series of procedures of laminating, drying, rolling, die cutting and pressing into a product by the white cardboard are required, although the procedures are relatively few, the laminating material of the process is PE and is a non-degradable material, and the environmental protection requirement cannot be met; drying immediately after film coating, and pressing the dried paper roll into a product; the product needs to be creased during pressing, and the structural strength of the product is poor.
In order to solve the defects of the traditional process, a full-automatic semi-dry paper-plastic pressing production process is urgently needed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a full-automatic semi-dry paper-plastic pressing production process.
Technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a full-automatic semi-dry paper-plastic pressing production process comprises the following specific steps:
(1) a paper roll coating procedure: arranging a paper pulp roll raw material on a coating machine, adding an auxiliary agent into the raw material, and uniformly coating the auxiliary agent on the surface of a paper roll by a coating process;
(2) and (3) die cutting: feeding the paper roll coated with the auxiliary agent into a die cutting machine, and die-cutting the paper roll into an initial blank of a product;
(3) automatic classification conveying procedure: conveying the die-cut product primary blank to a station of a half-dry paper pressing and molding machine through an AJV conveying trolley;
(4) automatic molding and pressing: pressing the primary blank of the product into paper-plastic products with various shapes by a semi-dry paper pressing and molding machine;
(5) the stacks are counted and transferred to packaging.
Preferably, the auxiliary agents added in the paper roll coating process comprise a water-proofing agent, an oil-proofing agent and a special coating.
Preferably, the automatic molding and pressing process adopts a drying and pressing process, and the moisture content of the wet blank during molding and drying is 25-35%.
Preferably, the paper roll raw material comprises a raw sugar cane pulp paper roll, a bamboo pulp paper roll and an orange stem type paper roll, and the specific requirement is that the paper roll is 320g-420 g/square meter.
Preferably, the semi-dry paper pressing and molding machine is a full-automatic rotary semi-dry paper pressing and molding machine.
Advantageous effects
The invention provides a full-automatic semi-dry paper-plastic pressing production process, which has the following beneficial effects:
(1) compared with the traditional wet pressing type pulp molding process, the invention has the following advantages:
the auxiliary agent is coated and added on the upper surface and the lower surface of the roll paper, the auxiliary agent does not need to be added into the slurry, the auxiliary agent can be saved, if the special coating is added in wet pressing, most of the special coating can be dissociated in water, the use limitation is large, and the process can be added with the special coating and has wide application range;
the invention adopts a coating mode to add the auxiliary agent, cancels the pulping process and reduces the working procedures;
the wet-pressing product needs to form 0.2-1% of slurry into a wet slurry blank with the water content of 65-75% after water is absorbed and filtered, and consumes large vacuum electric energy;
the moisture content of a wet blank of the wet-pressing type paper pulp molding during mold pressing drying is 65-75%, while the moisture content of the wet blank during mold pressing drying is 25-35%, so that a large amount of heat energy can be saved;
the full-automatic rotary semi-dry paper pressing and molding machine is used, the production line is high in production efficiency, high in drying speed and high in automation degree, automatic feeding, automatic material taking, automatic pressing, automatic discharging, automatic stacking and counting and automatic pushing of products which are counted can be achieved, labor input can be reduced, production cost is reduced, and enterprise production benefits are improved.
(2) Compared with the laminating paper disc process, the invention has the following advantages:
the film-coating paper disc process adopts food-grade white cardboard paper rolls with higher quality, the cost of the paper rolls is higher, and the use cost is low because the original sugarcane pulp paper rolls, bamboo pulp paper rolls or orange-straw paper rolls are selected and used;
the process of the laminating paper disc adopts single-sided or double-sided surface laminating, the material is generally plastic products PE or P L A, and can not be degraded or can not meet the environmental protection requirement, the invention coats auxiliary agents on the upper surface and the lower surface of the paper roll, the auxiliary agents are water-proofing agents, oil-proofing agents or special coatings, the product can be biodegraded, and the environmental protection characteristic of the product is ensured;
the film spraying paper disc process needs to be simultaneously dried during film spraying and cannot be dried in a mold, the paper board is in a dry state in the die cutting and pressing processes, wrinkles are designed on the surface of a pressed product, the structural strength of the product is poor, the paper disc is not dried during coating, certain humidity is kept, paper blanks with the water content of 25-35% are formed before die cutting and pressing, the overall structural strength of the pressed product is high, and the product quality is guaranteed.
Detailed Description
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.
Further explaining a technical scheme provided by the invention:
a full-automatic semi-dry paper-plastic pressing production process comprises the following specific steps:
(1) a paper roll coating procedure: arranging a paper roll raw material on a coating machine, adding an auxiliary agent into the raw material, and uniformly coating the auxiliary agent on the surface of a paper roll by a coating process;
(2) and (3) die cutting: feeding the paper roll coated with the auxiliary agent into a die cutting machine, and die-cutting the paper roll into an initial blank of a product;
(3) automatic classification conveying procedure: conveying the die-cut product primary blank to a station of a half-dry paper pressing and molding machine through an AJV conveying trolley;
(4) automatic molding and pressing: the semi-dry paper pressing and molding machine presses the product primary blank into paper-plastic products with various shapes under the environment of high temperature and high pressure;
(5) the stacks are counted and transferred to packaging.
The auxiliary agents added in the paper pulp roll coating procedure comprise a waterproof agent, an oil-proof agent and a special coating.
The automatic molding pressing process adopts a drying pressing process, and the moisture content of a wet blank during molding and drying is 25-35%.
The paper pulp roll raw materials comprise a raw sugar cane pulp paper roll, a bamboo pulp paper roll and a straw pulp paper roll, and the specific requirement is that the paper roll is 320-420 g per square meter.
The semi-dry paper pressing and molding machine is a full-automatic rotary semi-dry paper pressing and molding machine.
In summary, the following steps:
compared with the traditional wet pressing type pulp molding process, the invention has the following advantages:
the auxiliary agent is coated and added on the upper surface and the lower surface of the roll paper, the auxiliary agent does not need to be added into the slurry, the auxiliary agent can be saved, if the special coating is added in wet pressing, most of the special coating can be dissociated in water, the use limitation is large, and the process can be added with the special coating and has wide application range; the invention adopts a coating mode to add the auxiliary agent, cancels the pulping process and reduces the working procedures; the wet-pressing product needs to form 0.2-1% of slurry into a wet slurry blank with the water content of 65-75% after water is absorbed and filtered, and consumes large vacuum electric energy; the moisture content of a wet blank of the wet-pressing type paper pulp molding during mold pressing drying is 65-75%, while the moisture content of the wet blank during mold pressing drying is 25-35%, so that a large amount of heat energy can be saved; the full-automatic rotary semi-dry paper pressing and molding machine is used, the production line is high in production efficiency, high in drying speed and high in automation degree, automatic feeding, automatic material taking, automatic pressing, automatic discharging, automatic stacking and counting and automatic pushing of products which are counted can be achieved, labor input can be reduced, production cost is reduced, and enterprise production benefits are improved.
Compared with the laminating paper disc process, the laminating paper disc process adopts food-grade white cardboard paper rolls with higher quality and higher paper roll cost, the raw sugarcane pulp paper rolls, bamboo pulp paper rolls or orange-straw paper rolls are selected, the use cost is low, the laminating paper disc process adopts single-side or double-side surface laminating, the material is generally plastic products PE or P L A, the complete degradation cannot be realized, and the environmental protection requirement cannot be met.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A full-automatic half-dry pressing paper pulp molding production process is characterized by comprising the following specific manufacturing processes:
(1) a pulp roll coating procedure: arranging a paper pulp roll raw material on a coating machine, adding an auxiliary agent into the raw material, and uniformly coating the auxiliary agent on the surface of a paper roll by a coating process;
(2) and (3) die cutting: feeding the paper pulp roll coated with the auxiliary agent into a die cutting machine, and die-cutting the paper pulp roll into an initial blank of a product;
(3) automatic classification conveying procedure: conveying the die-cut product primary blank to a station of a half-dry paper pressing and molding machine through an AJV conveying trolley;
(4) automatic molding and pressing: pressing the primary blank of the product into paper-plastic products with various shapes by a semi-dry paper pressing and molding machine;
(5) the stacks are counted and transferred to packaging.
2. The fully automatic pulp molding production process according to claim 1, wherein the additives added in the pulp roll coating process comprise water-proofing agents, oil-proofing agents or specially formulated coatings.
3. The fully automatic semi-dry pressing pulp molding production process according to claim 1, wherein a drying and pressing process is adopted in the automatic molding and pressing process, and the moisture content of a wet blank during molding and drying is 25-35%.
4. The full-automatic semi-dry paper-pressing plastic production process according to claim 1, wherein the paper roll raw materials comprise raw sugar cane pulp paper rolls, bamboo pulp paper rolls and straw paper rolls, and the paper rolls are 320-420 g/square meter.
5. The fully automatic semi-dry paper-plastic pressing production process according to claim 1, wherein the semi-dry paper-plastic pressing machine is a fully automatic rotary semi-dry paper-plastic pressing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010460553.0A CN111469494A (en) | 2020-05-27 | 2020-05-27 | Full-automatic semi-dry paper-plastic pressing production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010460553.0A CN111469494A (en) | 2020-05-27 | 2020-05-27 | Full-automatic semi-dry paper-plastic pressing production process |
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| Publication Number | Publication Date |
|---|---|
| CN111469494A true CN111469494A (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010460553.0A Pending CN111469494A (en) | 2020-05-27 | 2020-05-27 | Full-automatic semi-dry paper-plastic pressing production process |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0731214A2 (en) * | 1995-03-07 | 1996-09-11 | Rexam Corrugated South West Limited | Paper pulp mouldings |
| CN101481562A (en) * | 2009-01-23 | 2009-07-15 | 华南理工大学 | Coating for spraying plant fibre paper pulp moulding product, spraying method and use |
| CN107190582A (en) * | 2017-06-28 | 2017-09-22 | 常州市诚鑫环保科技有限公司 | A kind of cellulosic paper dish type Manufacturing Method of Products |
-
2020
- 2020-05-27 CN CN202010460553.0A patent/CN111469494A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0731214A2 (en) * | 1995-03-07 | 1996-09-11 | Rexam Corrugated South West Limited | Paper pulp mouldings |
| CN101481562A (en) * | 2009-01-23 | 2009-07-15 | 华南理工大学 | Coating for spraying plant fibre paper pulp moulding product, spraying method and use |
| CN107190582A (en) * | 2017-06-28 | 2017-09-22 | 常州市诚鑫环保科技有限公司 | A kind of cellulosic paper dish type Manufacturing Method of Products |
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