CN108166331B - Paper pulp molding product structure with reinforcing ribs - Google Patents
Paper pulp molding product structure with reinforcing ribs Download PDFInfo
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- CN108166331B CN108166331B CN201810124363.4A CN201810124363A CN108166331B CN 108166331 B CN108166331 B CN 108166331B CN 201810124363 A CN201810124363 A CN 201810124363A CN 108166331 B CN108166331 B CN 108166331B
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 111
- 238000000465 moulding Methods 0.000 title claims abstract description 61
- 229920001131 Pulp (paper) Polymers 0.000 title claims description 50
- 239000000243 solution Substances 0.000 claims description 50
- 238000005728 strengthening Methods 0.000 claims description 24
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 238000005498 polishing Methods 0.000 claims description 10
- 239000011780 sodium chloride Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Paper (AREA)
Abstract
The invention discloses a pulp molding product structure with reinforcing ribs, which comprises a pulp mold main body and an upper pulp mold groove, wherein the upper pulp mold groove is arranged in the pulp mold main body, the bottom end of the upper pulp mold groove extends to the inner cavity of the pulp mold main body, a first lower pulp mold and a second lower pulp mold are respectively arranged at two sides of the bottom of the upper pulp mold groove, outer reinforcing ribs are fixedly arranged on the outer walls of the upper pulp mold groove, the first lower pulp mold and the second lower pulp mold, and inner reinforcing ribs are arranged in the inner cavities of the side walls of the first lower pulp mold and the second lower pulp mold. According to the invention, by designing the side elevation of the pulp molding product into the mode with the vertical tiny inner reinforcing ribs, a proper number of outer reinforcing ribs are arranged on the side elevation of the product, so that the effect of stabilizing the profile shape of the product can be achieved, the stability of the pulp molding product can be greatly improved, and the mechanical strength of the side wall of the product can be enhanced under the condition of the same wall thickness, so that the condition of larger mechanical test strength is achieved.
Description
Technical Field
The invention relates to the field of pulp molding products, in particular to a pulp molding product structure with reinforcing ribs.
Background
The current pulp molded product side elevation design is an equal thickness elevation, which is mainly 2 disadvantages:
1. the product is easy to deform after hot press molding and trimming;
2. The drop test strength of the product is insufficient.
Accordingly, it is necessary to invent a pulp molded product structure with reinforcing ribs to solve the above problems.
Disclosure of Invention
The invention aims to provide a pulp molding product structure with reinforcing ribs, which solves the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a take paper pulp molding product structure of strengthening rib, includes paper pulp mould main part and goes up paper pulp mould groove, go up paper pulp mould groove setting in the paper pulp mould main part, and go up paper pulp mould groove bottom and extend to paper pulp mould main part inner chamber, go up paper pulp mould groove bottom both sides and be provided with first paper pulp mould and second down paper pulp mould respectively, go up paper pulp mould groove, first paper pulp mould and second down paper pulp mould outer wall all are fixed to be provided with outer strengthening rib, first paper pulp mould and second down paper pulp mould lateral wall inner chamber are provided with interior strengthening rib.
Preferably, the pulp mould main body, the upper pulp mould groove, the first lower pulp mould and the second lower pulp mould are integrally arranged.
Preferably, the outer reinforcing ribs are provided with a plurality of groups, the outer reinforcing ribs are vertically and uniformly distributed on the outer walls of the upper paper pulp mould groove, the first lower paper pulp mould and the second lower paper pulp mould respectively, and the distance between each two adjacent outer reinforcing ribs is 1.5 cm-2 cm.
Preferably, the inner reinforcing ribs are provided with a plurality of groups, the plurality of groups of outer reinforcing ribs are vertically and uniformly distributed in the inner cavities of the side walls of the first lower pulp mould and the second lower pulp mould respectively, and the distance between every two adjacent inner reinforcing ribs is set to be 0.5 cm-0.8 cm.
The invention also provides a reinforcing rib adding method of the pulp molding product structure with the reinforcing rib, which comprises the following steps:
step one: outer strengthening rib sets up: coating one side of the outer reinforcing rib with paper pulp molding solution, uniformly arranging the outer reinforcing rib according to the shape of a paper pulp mold at a distance of 1.5 cm-2 cm, standing for 5-8 minutes to fix the outer reinforcing rib with the mold, and coating the surface of the outer reinforcing rib with sodium chloride solution;
Step two: setting up in mould and interior strengthening rib for the first time: injecting pulp molding solution into the mold, wherein the injection amount is 1/2 of the depth of the mold groove, uniformly arranging the inner reinforcing ribs in the mold groove according to the designed position and the distance of 0.5 cm-0.8 cm, inserting the bottom ends of the inner reinforcing ribs into the pulp molding solution, and vibrating the mold for 20-30 seconds;
Step three: and (5) performing secondary mold entering: after the second step is finished, injecting pulp molding solution into the mold groove, and vibrating the mold for 30-40 seconds;
Step four: removing the die: and (3) after the step (III) is finished, placing the mould for solidification for 4-5 hours at normal temperature, and removing the mould after the pulp molding solution is completely solidified, so as to obtain the pulp mould.
Preferably, the concentration of sodium chloride in the first step is set to be 2.5% -4.5%.
Preferably, in the second step, the pulp molding solution is first allowed to stand for 30 to 40 minutes between the inner reinforcing ribs so that the pulp molding solution has a certain stability.
Preferably, the pulp mould manufactured in the step four is subjected to polishing on the surface of the manufactured pulp mould by a polishing machine.
The invention has the technical effects and advantages that:
1. According to the invention, the side elevation of the pulp mould is designed to be provided with the vertical tiny inner reinforcing ribs, and a proper number of outer reinforcing ribs are arranged on the side elevation of the product, so that the effect of stabilizing the profile shape of the product can be achieved, and the stability of the pulp mould can be greatly improved;
2. The product of the invention can strengthen the mechanical strength of the side wall of the product under the condition of the same wall thickness, thereby achieving the condition of larger mechanical test strength;
3. The invention smears the surface of one side of the outer reinforcing rib with sodium chloride solution, which is beneficial to slightly corroding the outer reinforcing rib, so that the surface of the outer reinforcing rib presents micropores, and is beneficial to enhancing the adsorptivity of the outer reinforcing rib and the pulp mould, thereby improving the strength of the pulp mould.
Drawings
Fig. 1 is a schematic bottom view of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic side sectional structure of the present invention.
In the figure: 1 pulp mould main body, 2 upper pulp mould groove, 3 first lower pulp mould, 4 second lower pulp mould, 5 outer strengthening rib, 6 interior strengthening rib.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a pulp molding product structure with reinforcing ribs, which is shown in fig. 1-3, and comprises a pulp mold main body 1 and an upper pulp mold groove 2, wherein the upper pulp mold groove 2 is arranged in the pulp mold main body 1, the bottom end of the upper pulp mold groove 2 extends to the inner cavity of the pulp mold main body 1, a first lower pulp mold 3 and a second lower pulp mold 4 are respectively arranged on two sides of the bottom of the upper pulp mold groove 2, outer reinforcing ribs 5 are fixedly arranged on the outer walls of the upper pulp mold groove 2, the first lower pulp mold 3 and the second lower pulp mold 4, and inner reinforcing ribs 6 are arranged in the inner cavities of the side walls of the first lower pulp mold 3 and the second lower pulp mold 4.
The pulp mould main part 1, go up pulp mould groove 2, first lower pulp mould 3 and second lower pulp mould 4 and be the integration setting, outer strengthening rib 5 is provided with the multiunit, multiunit outer strengthening rib 5 is vertical evenly distributed respectively in last pulp mould groove 2, first lower pulp mould 3 and second lower pulp mould 4 outer wall, every is adjacent distance between the outer strengthening rib 5 sets up to 1.5cm ~ 2cm, interior strengthening rib 6 is provided with the multiunit, multiunit outer strengthening rib 5 is vertical evenly distributed respectively in first lower pulp mould 3 and second lower pulp mould 4 lateral wall inner chamber, every is adjacent distance between the interior strengthening rib 6 sets up to 0.5cm ~ 0.8cm.
Example 1: a reinforcing rib adding method of a pulp molding product structure with reinforcing ribs comprises the following specific adding methods:
step one: outer strengthening rib sets up: coating one side of the outer reinforcing rib 5 with a pulp molding solution, uniformly distributing the outer reinforcing rib 5 according to the distance of 1.5 cm-2 cm according to the shape of a pulp mold, standing for 5-8 minutes to fix the outer reinforcing rib 5 with the mold, and coating the surface of the outer reinforcing rib 5 with a sodium chloride solution with the concentration of 2.5%, so that slight corrosion on the outer reinforcing rib 5 is facilitated, the surface of the outer reinforcing rib 5 presents a micropore shape, and the adsorptivity of the outer reinforcing rib 5 and the pulp mold is facilitated to be enhanced, thereby improving the strength of the pulp mold;
Step two: setting up in mould and interior strengthening rib for the first time: injecting the pulp molding solution into a mold, wherein the injection amount is 1/2 of the depth of a mold groove, then, standing the pulp molding solution for 30-40 minutes, so that the pulp molding solution has certain stability, the inner reinforcing ribs 6 are beneficial to providing a supporting force, the inner reinforcing ribs 6 are prevented from tilting when being placed into the inner reinforcing ribs 6, finally, the inner reinforcing ribs 6 are uniformly distributed in the mold groove according to the designed position at a distance of 0.5 cm-0.8 cm, the bottom ends of the inner reinforcing ribs 6 are inserted into the pulp molding solution, and then, vibrating the mold for 20-30 seconds, so that the pulp molding solution in the mold groove is fully contacted, gas in the pulp molding solution is extruded, the existence of the gas is avoided, and the prepared pulp mold has bubbles, so that the quality of a pulp molding product is influenced;
Step three: and (5) performing secondary mold entering: after the second step is finished, injecting pulp molding solution into the mold groove, and vibrating the mold for 30-40 seconds;
Step four: removing the die: and after the step three is finished, placing the mould for solidification for 4 to 5 hours at normal temperature, removing the mould after the pulp molding solution is completely solidified, thereby preparing the pulp mould, polishing the surface of the prepared pulp mould by a polishing machine, facilitating the removal of burrs on the surface of the pulp mould, and enabling the surface of the pulp mould to be smooth, thereby improving the quality of the pulp mould.
Example 2: a reinforcing rib adding method of a pulp molding product structure with reinforcing ribs comprises the following specific adding methods:
Step one: outer strengthening rib sets up: coating one side of the outer reinforcing rib 5 with paper pulp molding solution, uniformly arranging the outer reinforcing rib 5 according to the distance of 1.5 cm-2 cm according to the shape of a paper pulp mold, standing for 5-8 minutes to fix the outer reinforcing rib 5 with the mold, and coating the surface of the outer reinforcing rib 5 with sodium chloride solution with the concentration of 3.5%, so that slight corrosion on the outer reinforcing rib 5 is facilitated, the surface of the outer reinforcing rib 5 presents a micropore shape, the adsorptivity of the outer reinforcing rib 5 and the paper pulp mold is facilitated, and the strength of the paper pulp mold is improved;
Step two: setting up in mould and interior strengthening rib for the first time: injecting the pulp molding solution into a mold, wherein the injection amount is 1/2 of the depth of a mold groove, then, standing the pulp molding solution for 30-40 minutes, so that the pulp molding solution has certain stability, the inner reinforcing ribs 6 are beneficial to providing a supporting force, the inner reinforcing ribs 6 are prevented from tilting when being placed into the inner reinforcing ribs 6, finally, the inner reinforcing ribs 6 are uniformly distributed in the mold groove according to the designed position at a distance of 0.5 cm-0.8 cm, the bottom ends of the inner reinforcing ribs 6 are inserted into the pulp molding solution, and then, vibrating the mold for 20-30 seconds, so that the pulp molding solution in the mold groove is fully contacted, gas in the pulp molding solution is extruded, the existence of the gas is avoided, and the prepared pulp mold has bubbles, so that the quality of the pulp mold is influenced;
Step three: and (5) performing secondary mold entering: after the second step is finished, injecting pulp molding solution into the mold groove, and vibrating the mold for 30-40 seconds;
Step four: removing the die: and after the step three is finished, placing the mould for solidification for 4 to 5 hours at normal temperature, removing the mould after the pulp molding solution is completely solidified, thereby preparing the pulp mould, polishing the surface of the prepared pulp mould by a polishing machine, facilitating the removal of burrs on the surface of the pulp mould, and enabling the surface of the pulp mould to be smooth, thereby improving the quality of the pulp mould.
Example 3: a reinforcing rib adding method of a pulp molding product structure with reinforcing ribs comprises the following specific adding methods:
Step one: outer strengthening rib sets up: coating one side of the outer reinforcing rib 5 with a pulp molding solution, uniformly distributing the outer reinforcing rib 5 according to the distance of 1.5 cm-2 cm according to the shape of a pulp mold, standing for 5-8 minutes to fix the outer reinforcing rib 5 with the mold, and coating the surface of the outer reinforcing rib 5 with a sodium chloride solution with the concentration of 4.5%, so that slight corrosion on the outer reinforcing rib 5 is facilitated, the surface of the outer reinforcing rib 5 presents a micropore shape, and the adsorptivity of the outer reinforcing rib 5 and the pulp mold is facilitated to be enhanced, thereby improving the strength of the pulp mold;
Step two: setting up in mould and interior strengthening rib for the first time: injecting the pulp molding solution into a mold, wherein the injection amount is 1/2 of the depth of a mold groove, then, standing the pulp molding solution for 30-40 minutes, so that the pulp molding solution has certain stability, the inner reinforcing ribs 6 are beneficial to providing a supporting force, the inner reinforcing ribs 6 are prevented from tilting when being placed into the inner reinforcing ribs 6, finally, the inner reinforcing ribs 6 are uniformly distributed in the mold groove according to the designed position at a distance of 0.5 cm-0.8 cm, the bottom ends of the inner reinforcing ribs 6 are inserted into the pulp molding solution, and then, vibrating the mold for 20-30 seconds, so that the pulp molding solution in the mold groove is fully contacted, gas in the pulp molding solution is extruded, the existence of the gas is avoided, and the prepared pulp mold has bubbles, so that the quality of the pulp mold is influenced;
Step three: and (5) performing secondary mold entering: after the second step is finished, injecting pulp molding solution into the mold groove, and vibrating the mold for 30-40 seconds;
Step four: removing the die: and after the step three is finished, placing the mould for solidification for 4 to 5 hours at normal temperature, removing the mould after the pulp molding solution is completely solidified, thereby preparing the pulp mould, polishing the surface of the prepared pulp mould by a polishing machine, facilitating the removal of burrs on the surface of the pulp mould, and enabling the surface of the pulp mould to be smooth, thereby improving the quality of the pulp mould.
As is evident from examples 1 to 3, the pulp mould obtained has the best strength when the surface of the external bead 5 is coated with sodium chloride having a concentration of 3.5%.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. A reinforcing rib adding method of a pulp molding product structure with reinforcing ribs, which is characterized by comprising the following specific adding methods:
Step one: outer strengthening rib sets up: coating one side of the outer reinforcing rib (5) with paper pulp molding solution, uniformly arranging the outer reinforcing rib (5) according to the shape of a paper pulp mold at a distance of 1.5 cm-2 cm, standing for 5-8 minutes to fix the outer reinforcing rib (5) with the mold, coating the surface of the outer reinforcing rib (5) with sodium chloride solution to facilitate slight corrosion of the outer reinforcing rib (5), and enabling the surface of the outer reinforcing rib (5) to be microporous to facilitate enhancement of adsorptivity of the outer reinforcing rib (5) and the paper pulp mold so as to improve strength of the paper pulp mold;
Step two: setting up in mould and interior strengthening rib for the first time: injecting pulp molding solution into a mold, wherein the injection amount is 1/2 of the depth of a mold groove, the inner reinforcing ribs (6) are uniformly distributed in the mold groove according to the designed position and the distance of 0.5 cm-0.8 cm, the bottom ends of the inner reinforcing ribs (6) are inserted into the pulp molding solution, and then the mold is vibrated for 20-30 seconds, so that the pulp molding solution in the mold groove is favorably fully contacted, gas in the pulp molding solution is extruded, the existence of the gas is avoided, and bubbles exist in the prepared pulp mold, so that the quality of the pulp mold is influenced;
Step three: and (5) performing secondary mold entering: after the second step is finished, injecting pulp molding solution into the mold groove, and vibrating the mold for 30-40 seconds;
Step four: removing the die: and after the step three is finished, placing the mould for solidification for 4-5 hours at normal temperature, and removing the mould after the pulp molding solution is completely solidified, so as to prepare the pulp mould.
2. The method for adding reinforcing ribs to a pulp molded product structure with reinforcing ribs according to claim 1, characterized in that: in the first step, the concentration of sodium chloride is set to be 2.5% -4.5%.
3. The method for adding reinforcing ribs to a pulp molded product structure with reinforcing ribs according to claim 1, characterized in that: in the second step, between the inner reinforcing ribs (6), the pulp molding solution is firstly kept stand for 30-40 minutes, so that the pulp molding solution has certain stability, the support force for the inner reinforcing ribs (6) is facilitated, and the inner reinforcing ribs (6) are prevented from tilting when the inner reinforcing ribs (6) are placed.
4. The method for adding reinforcing ribs to a pulp molded product structure with reinforcing ribs according to claim 1, characterized in that: and fourthly, polishing the surface of the pulp mould by a polishing machine, which is favorable for removing burrs on the surface of the pulp mould, so that the surface of the pulp mould is smooth, and the quality of the pulp mould product is improved.
5. The method for adding reinforcing ribs to a pulp molded product structure with reinforcing ribs according to claim 1, characterized in that: the utility model provides a take paper pulp molding product structure of strengthening rib includes paper pulp mould main part (1) and goes up paper pulp mould groove (2), go up paper pulp mould groove (2) and set up in paper pulp mould main part (1), and go up paper pulp mould groove (2) bottom and extend to paper pulp mould main part (1) inner chamber, go up paper pulp mould groove (2) bottom both sides and be provided with first lower paper pulp mould (3) and second lower paper pulp mould (4) respectively, go up paper pulp mould groove (2), first lower paper pulp mould (3) and second lower paper pulp mould (4) outer wall all are fixed and are provided with outer strengthening rib (5), first lower paper pulp mould (3) and second lower paper pulp mould (4) lateral wall inner chamber are provided with interior strengthening rib (6).
6. The method for adding reinforcing ribs to a pulp molded product structure with reinforcing ribs according to claim 5, characterized in that: the pulp mould main body (1), the upper pulp mould groove (2), the first lower pulp mould (3) and the second lower pulp mould (4) are integrally arranged.
7. The method for adding reinforcing ribs to a pulp molded product structure with reinforcing ribs according to claim 5, characterized in that: the outer reinforcing ribs (5) are arranged in a plurality of groups, the outer reinforcing ribs (5) are vertically and uniformly distributed on the outer walls of the upper paper pulp mould groove (2), the first lower paper pulp mould (3) and the second lower paper pulp mould (4) respectively, and the distance between every two adjacent outer reinforcing ribs (5) is 1.5 cm-2 cm.
8. The method for adding reinforcing ribs to a pulp molded product structure with reinforcing ribs according to claim 5, characterized in that: the inner reinforcing ribs (6) are arranged in a plurality of groups, the inner reinforcing ribs (6) are vertically and uniformly distributed in the inner cavities of the side walls of the first lower paper pulp mould (3) and the second lower paper pulp mould (4) respectively, and the distance between every two adjacent inner reinforcing ribs (6) is 0.5 cm-0.8 cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810124363.4A CN108166331B (en) | 2018-02-07 | 2018-02-07 | Paper pulp molding product structure with reinforcing ribs |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810124363.4A CN108166331B (en) | 2018-02-07 | 2018-02-07 | Paper pulp molding product structure with reinforcing ribs |
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| CN108166331A CN108166331A (en) | 2018-06-15 |
| CN108166331B true CN108166331B (en) | 2024-06-04 |
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-
2018
- 2018-02-07 CN CN201810124363.4A patent/CN108166331B/en active Active
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|---|---|---|---|---|
| CN2310084Y (en) * | 1997-11-07 | 1999-03-10 | 吴铁范 | Fast food box |
| CN1597454A (en) * | 2003-09-15 | 2005-03-23 | 刘胜祥 | Full paper pallet box |
| CN201095477Y (en) * | 2007-06-26 | 2008-08-06 | 苏州爱绿纸塑有限公司 | Paper pulp molding cushioning mounting |
| CN202208451U (en) * | 2011-07-27 | 2012-05-02 | 银川市富邦印刷包装有限公司 | Shockproof inner lining for packing box |
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