Automated Shape Correction for Wood Composites in Continuous Pressing
Round 1
Reviewer 1 Report
Comments and Suggestions for AuthorsTitle: Plate Shape Deviation Correction of Wood-Based Fiber Composites Based on Cyber Granular Driven Event-Triggered Control in Continuous Hot Pressing
Author: Lv et al.
General
This article describes the principle of thickness control and monitoring in MDF production. The article is very long and written in great detail. While there is no limit to the length of the article, as stated in the Instructions for Authors: “Forests has no restrictions on the maximum length of manuscripts, provided that the text is concise and comprehensive”, the content of the article is redundant in some parts, making the article unnecessarily long. For example, the article contains unnecessary details that do not belong in the main text of the article, such as certain proofs (e.g. L 390). If the authors consider it necessary to mention these, I suggest moving them to the Appendix of the article and in this way shortening the main text.
Author Response
Reviewer 1：
Thanks to the experts for their valuable comments on the manuscript, which has been revised as follows to address the revisions:
This article describes the principle of thickness control and monitoring in MDF production. The article is very long and written in great detail. While there is no limit to the length of the article, as stated in the Instructions for Authors: “Forests has no restrictions on the maximum length of manuscripts, provided that the text is concise and comprehensive”, the content of the article is redundant in some parts, making the article unnecessarily long. For example, the article contains unnecessary details that do not belong in the main text of the article, such as certain proofs (e.g. L 390). If the authors consider it necessary to mention these, I suggest moving them to the Appendix of the article and in this way shortening the main text.
Response: Thanks to the constructive comments of the experts, the article as a whole is indeed too long. Appropriate cuts and adjustments have been made throughout the article and marked in red. In the streamlining, the original Tables 4, 5 and 6 and related narratives have been deleted, and Tables 4, 5, 6 and 7 are now Tables 7-10 from the previous submission.
Reviewer 2 Report
Comments and Suggestions for AuthorsDear authors. Thank you very much for high quality paper. I am especially happy to see article which deal not only about results of mechanical properties of prepared samples but focus also on preparation of such composites and also control of manufacture process. Used mechanical properties as "macroscopic" controller of bond quality are very well chosen and presented results fully acknowledge very high quality of such composites preparation. Even think paper should be accepted in present form want ask some questions:
- Are results at Tables 7 to 10 all for pressing speed 670 mm/s?
- Have you tried other values of this parameter?
- Have you performed analysis of pressing speed effect on presented mechanical properties?
On final wanted tell that these questions are only from interest which definitely dont lower very high quality of send article at which most appreciate that it is written by very complex way from "all angles" and want thank as one of the best articles i have ever reviewed. Therefore propose to be accepted in present form and wish you best luck in future research. Thank you very much.
Author Response
Reviewer 2:
Thank you for the high evaluation of the manuscript, on behalf of all the authors of the paper, I would like to express my gratitude to you, as well as some valuable comments from the experts, and the following changes have been made in response to the revisions:
Dear authors. Thank you very much for high quality paper. I am especially happy to see article which deal not only about results of mechanical properties of prepared samples but focus also on preparation of such composites and also control of manufacture process. Used mechanical properties as "macroscopic" controller of bond quality are very well chosen and presented results fully acknowledge very high quality of such composites preparation. Even think paper should be accepted in present form want ask some questions:
- Are results at Tables 7 to 10 all for pressing speed 670 mm/s?
Response: Thank you for the expert's question, in order to ensure the consistency of the experiment, the current test press speed in conjunction with the production site are 670mm/s, but also the current common press speed in the production site. We will test different press speeds in the future, thanks for your suggestion again.
2 Have you tried other values of this parameter?
Response: Thank you for your question, due to research constraints, there is no relevant research and testing for other press speeds, in the future we will test different press speeds, thank you for the expert's opinion.
3 Have you performed analysis of pressing speed effect on presented mechanical properties?
Response: Thanks to the constructive comments of the experts, due to the limitations of the research, there is indeed a lack of research in the different press speeds of the plate defects in the corrective control of the system, in the future research to focus on the study of different press speeds to bring about the impact of plate shape.
Reviewer 3 Report
Comments and Suggestions for AuthorsDear Authors
The reviewed study proposes a new method for controlling the thickness of MDF boards during continuous hot pressing. This method uses real-time monitoring and a three-way decision-making process to identify and correct deviations in thickness, slope, depression, and bulge, leading to higher-quality MDF boards with improved production efficiency. After reading the manuscript, I offer comments for the authors' consideration:
1. The title „Plate Shape Deviation Correction of Wood-Based Fiber Composites Based on Cyber Granular Driven Event-Triggered Control in Continuous Hot Pressing” clearly describes the research topic. It also conveys the techniques employed, including cyber granular control and event-triggered control. The title is long and may not be easily understood in the “first reading”. Terms like "cyber granular" and "event-triggered control" may be considered as unfamiliar and ambiguous. The term "cyber granular", based on the context of the title, has two possible interpretations: “Cyber-physical” system that integrates physical components (like machines) with computational elements (like software) or “granular control” (the ability to control a system in small, incremental steps precisely). Please consider the shorter form, like "Automated Shape Correction for Wood Composites in Continuous Pressing" or similar.
2. The abstract is quite extended. Please consider shortening. The "CyberGr" term explanation is unnecessary (simply write Cyber Granular). There is some repetition of information (e.g., mentioning plate thickness deviation multiple times. The “MDF” is mentioned 11 times).
3. Line 71. The sentence "The press cylinders of this press now act directly from above to affect the hot platen" is grammatically correct, but it could be improved for clarity and conciseness ("The press cylinders now apply pressure directly from above to the hot platen").
4. Line 136. Please consider mentioning that MDF is used mainly in the furniture industry, so the proposed method of increasing board quality is important in this sector (please see the study about the importance of quality control in furniture manufacturing, doi: 10.3390/systems12020051).
5. Line 174. Table 1. Please correct the table following the terminology adopted in FMEA, i.e. provide ratings for each table cell. Rename the "ratings" column to "Priority number" and enter the product of the "Occurrence", "Severity," and "Detection" ratings there.
6. Lines 279-281 Please revise the equations in the mathematical formula editor, and do not use Asterix (*) as a multiplication sign.
7. Line 235. I consider the notation “2^n” to be incorrect. While in programming languages, the most common operator symbol for exponentiation is the caret (^), then in the article text, the superscript should be used“2n”. Please revise the whole text (lines 239, 245 and so on).
8. Line 286. The term "different-or" operation isn't a standard bitwise operation in most programming languages. Please specify that it is an “Internal Bit Manipulation” or revrite this fragment for better clarity.
9. Line 290. One “x” is missing in “x1x: 1^0^1^0 = 0”.
10. Line 308. Instead, “Hemming code“ – better “Hamming code“.
11. Lines 342-343, 345. The symbols are missing.
12. Line 634. Please translate the fragment from Chinese into English.
13. Line 708. Figure 10. The capitalization is inconsistent with other figures.
14. Line 860. Figure 20. The capitalization is inconsistent with other figures.
15. Line 886. The caption for Figure 22 is inconsistent with other figures (capitalization of words is missing).
16. Line 908. “Mpa“? Please revise the whole manuscript and additionally add the space between value and unit (“55.5 MPa“ instead of “55.5Mpa“).
17. Line 927. Table 7. Please specify the “Average“. Is it the mid-range, median, mode, or geometric mean? Please revise other tables (specifying the “average” type used).
18. Line 941. The “discussion” section has some good elements but can be improved for clarity and conciseness. It doesn't delve into the specific innovations or the impact of the method. Please revise.
Generally, developing a new control method for MDF production demonstrates a commitment to innovation and environmental responsibility. I recommend it for publication after minor revision. I wish the authors good luck in their further activities.
Sincerely
(–)
08.06.2024
Author Response
Reviewer 3:
The reviewed study proposes a new method for controlling the thickness of MDF boards during continuous hot pressing. This method uses real-time monitoring and a three-way decision-making process to identify and correct deviations in thickness, slope, depression, and bulge, leading to higher-quality MDF boards with improved production efficiency. After reading the manuscript, I offer comments for the authors' consideration:
- The title “Plate Shape Deviation Correction of Wood-Based Fiber Composites Based on Cyber Granular Driven Event-Triggered Control in Continuous Hot Pressing” clearly describes the research topic. It also conveys the techniques employed, including cyber granular control and event-triggered control. The title is long and may not be easily understood in the “first reading”. Terms like "cyber granular" and "event-triggered control" may be considered as unfamiliar and ambiguous. The term "cyber granular", based on the context of the title, has two possible interpretations: “Cyber-physical” system that integrates physical components (like machines) with computational elements (like software) or “granular control” (the ability to control a system in small, incremental steps precisely). Please consider the shorter form, like "Automated Shape Correction for Wood Composites in Continuous Pressing" or similar.
Response: Thanks to the experts for t constructive comments, thank you very much for your suggested title, I think it can be very clear to show what we are doing, it is excellent, and the title has been suitably modified and highlighted in red.
- The abstract is quite extended. Please consider shortening. The "CyberGr" term explanation is unnecessary (simply write Cyber Granular). There is some repetition of information (e.g., mentioning plate thickness deviation multiple times. The “MDF” is mentioned 11 times).
Response：Thanks to the constructive comments of the expert, the abstract has been refined and "Cyber Gr" has been changed to "Cyber Granular"，and the changes have been highlighted in red.
- Line 71. The sentence "The press cylinders of this press now act directly from above to affect the hot platen" is grammatically correct, but it could be improved for clarity and conciseness ("The press cylinders now apply pressure directly from above to the hot platen").
Response: Thanks for the expert valuable opinion, the sentence“The press cylinders of this press now act directly from above to affect the hot platen.”change to “The press cylinders now apply pressure directly from above to the hot platen.”in line 71.
- Line 136. Please consider mentioning that MDF is used mainly in the furniture industry, so the proposed method of increasing board quality is important in this sector (please see the study about the importance of quality control in furniture manufacturing, doi: 10.3390/systems12020051).
Response: Thanks to the constructive comments made by the experts, line 136 was supplemented with a narrative related to the study of the importance of quality control in furniture, which is mainly used in the furniture industry, reflecting the importance of MDF, with the addition of the content "MDF is used as an important material in the production of furniture, which is a special industrial sector with a high demand for manpower, a wide range of processed materials and a short production cycle. The review identifies and explains effective quality management strategies in furniture production. Strategies. Quality Function Deployment (QFD) and Failure Mode and Effects Analysis (FMEA) are highlighted. The importance of sustainable development in the furniture industry is emphasised, which requires a combination of circular economy principles and resource-saving practices in combination with circular economy principles and resource-saving practices in combination with circular economy principles and resource-saving practices in combination with circular economy principles and resource-saving practices in combination with circular economy principles and resource-saving practices. The most important conclusion from the analyses is that identifying and correcting poor quality products provides the most favourable outcome for the manufacturer.", and the citation of the reference doi: 10.3390/systems12020051. and added to the list of references [7].
[7] Skorupińska E, Hitka M, Sydor M. Surveying Quality Management Methodologies in Wooden Furniture Production[J]. Systems, 2024, 12(2): 51.
- Line 174. Table 1. Please correct the table following the terminology adopted in FMEA, i.e. provide ratings for each table cell. Rename the "ratings" column to "Priority number" and enter the product of the "Occurrence", "Severity," and "Detection" ratings there.
Response: Thanks to the constructive comments from the experts, Table 1 has been corrected in accordance with the terminology used in the FMEA and the "Rating" column has been renamed to "Priority Number" and the product of the "Occurrence", "Severity" and "Detection" ratings has been entered to reflect the notation, as modified below:
|
Plate Shape |
Occurrence |
Severity |
Detection |
Rating |
|
Mild Slope A |
2 |
4 |
6 |
48 |
|
Mild Slope B |
4 |
4 |
6 |
96 |
|
Middle Slope C |
6 |
8 |
6 |
288 |
|
Middle Slope D |
4 |
2 |
6 |
48 |
|
Heavy Slope E |
8 |
4 |
6 |
192 |
|
Slight bump A |
2 |
4 |
6 |
48 |
|
Middle bump C |
3 |
5 |
6 |
90 |
|
Heavy bump D |
4 |
4 |
6 |
96 |
|
Slight depression A |
2 |
4 |
6 |
48 |
|
Middle depression B |
3 |
4 |
6 |
72 |
|
Heavy depression E |
6 |
4 |
6 |
144 |
Table 1. Three parameters O、S、D scoring criteria of FMEA.
- Lines 279-281 Please revise the equations in the mathematical formula editor, and do not use Asterix (*) as a multiplication sign.
Response: Thank you for the valuable comments made by the experts, 279-281 lines of the relevant formula has been revised in accordance with the requirements of the "*" to modify the formula specification for the use of the multiplication sign, and will be modified after the formula mark with a red font.
- Line 235. I consider the notation “2^n” to be incorrect. While in programming languages, the most common operator symbol for exponentiation is the caret (^), then in the article text, the superscript should be used“2n”. Please revise the whole text (lines 239, 245 and so on).
Response: Thanks to the expert for pointing out that the problem with the "2^n" symbol throughout the manuscript has been completely revised and highlighted in red. For details, see: lines 235, 239 and 245.
- Line 286. The term "different-or" operation isn't a standard bitwise operation in most programming languages. Please specify that it is an “Internal Bit Manipulation” or rewrite this fragment for better clarity.
Response: Thanks to the constructive comments of the experts, line 286, "different-or" part has been rewritten in the fragment, after the amendment " internal bit manipulation".
- Line 290. One “x” is missing in “x1x: 1^0^1^0 = 0”.
Response: Thanks to the expert for pointing this out, line 290 has been amended and highlighted in red.
- Line 308. Instead, “Hemming code“ better “Hamming code“.
Response: Thanks to the experts for their valuable comments, the 308 “Heming Code”has been changed to “Hamming Code”.
- Lines 342-343, 345. The symbols are missing.
Response: Thanks to the expert for pointing out that Lines 342-343, 345 had lost their symbols due to a clerical error, which has now been corrected and highlighted in red.
- Line 634. Please translate the fragment from Chinese into English.
Response: Thank you for your valuable comments, line 634 has been modified to "and is the decision matrix information for the slope case derived in [8]".
- Line 708. Figure 10. The capitalization is inconsistent with other figures.
Response: Thanks to the constructive comments of the experts, Figure 10 has been revised as follows:
Figure 10. Position output for thickness deviation cylinder arrays.
- Line 860. Figure 20. The capitalization is inconsistent with other figures.
Response: Thanks to the constructive comments of the experts, Figure 20 has been revised as follows:
Figure 20. Position Output Method for Depression Deviation Type.
- Line 886. The caption for Figure 22 is inconsistent with other figures (capitalization of words is missing).
Response: Thanks to the constructive comments of the experts, Figure 22 has been revised as follows:
Figure 22. Dynamic Interface of Plates After Depression Correction Deviation.
- Line 908. “Mpa“? Please revise the whole manuscript and additionally add the space between value and unit (“55.5 MPa“instead of “55.5Mpa“).
Response: Thank you for the constructive comments made by the experts, due to a clerical error "MPa" written as "Mpa", similar issues throughout the text has been revised, and will be 908 lines of "55.5Mpa" to "55.5 MPa". and to amend "55.5 Mpa" in line 908 to "55.5 MPa".
- Line 927. Table 7. Please specify the “Average“. is it the mid-range, median, mode, or geometric mean? Please revise other tables (specifying the “average” type used)?
Response: Thanks to the constructive comments of the experts, a detailed description of the average values has been added at the bottom of Table 7, and Table 7 has been revised as shown below:
|
Internal Binding (Long) |
Internal Binding (Width) |
Peak |
Internal Binding Strength |
Average of Internal Binding Strength |
|
49.71 |
49.64 |
3158 |
1.28 |
1.40 |
|
49.75 |
49.70 |
3668 |
1.48 |
|
|
49.68 |
49.83 |
3600 |
1.45 |
|
|
49.68 |
49.79 |
3832 |
1.55 |
|
|
49.67 |
49.73 |
3706 |
1.50 |
|
|
49.64 |
49.69 |
2782 |
1.13 |
Table 7. Test on internal bonding strength of MDF boards.
Table 9. Test of MDF surface bonding strength.
|
Number |
Peak |
Surface Bonding |
Surface Bonding Average |
|
|
1 |
549.00 |
0.549 |
0.520 |
|
|
2 |
416.00 |
0.416 |
||
|
3 |
529.00 |
0.529 |
|
|
|
4 |
550.00 |
0.550 |
|
|
|
5 |
545.00 |
0.545 |
- Line 941. The “discussion” section has some good elements but can be improved for clarity and conciseness. It doesn't delve into the specific innovations or the impact of the method. Please revise.
Response: Thanks to the constructive comments from the experts, the discussion section in line 941 has been revised, after the revision " The study of continuous flat pressing of wood-plastic composites (MDF) has al-ways been a key topic in modern manufacturing. Especially in the stage of "fixed thickness section", it brings great challenges and complexity to the production process due to the typical deviations of thickness, slope, depression and bulge involved. In order to solve these problems, this paper proposes an intervening three-way decision-making cooperative control method for the viscoelastic multi-field coupling distributed agile control of the "fixed-thickness section" in the MDF continuous flat-pressing process. The method is designed to solve the complex problem of "fixed-thickness section" in MDF continuous flat-pressing process, including typical deviations in thickness, slope, depression and bulge. The specific program includes the following key points:
- It is innovative to redefine the single-terminal power unit of MDF hydraulic cylinders, and adopt the grain structure approach to construct the distributed control grain structure intelligent perception model of continuous press cylinder ar-ray.
- The three-way decision-making idea is adopted to determine the uncertain deviation types and grades in the continuous hot pressing process of MDF, and the correct adjustment program can be made in time, so that the uncertain deviation types and grades in the boundary domain become controllable.
- Based on the Cyber Granular computing technology, a three-way decision-making quality control method computing is proposed for the viscoelastic multi-field coupling distributed agile regulation of the "fixed thickness stage" of the MDF continuous flat pressing process.
For the above solutions can get a better corrective effect, improve product quality production of superior product rate has increased, better achieve the goal of MDF continuous hot pressing precision control, to meet the needs of agile production."
Round 2
Reviewer 1 Report
Comments and Suggestions for AuthorsAs mentioned already in the first review, there are many redundant mathematical operations in the article that are not relevant to the understanding of the procedure itself and belong more in the appendix than in the main text. The article is still long and difficult to read due to the numerous mathematical derivations and proofs.
There are many squares in the article instead of unknowns.
The sizes of the unknowns change throughout the text.
Author Response
Reviewer
As mentioned already in the first review, there are many redundant mathematical operations in the article that are not relevant to the understanding of the procedure itself and belong more in the appendix than in the main text. The article is still long and difficult to read due to the numerous mathematical derivations and proofs.
- There are many squares in the article instead of unknowns. The sizes of the unknowns change throughout the text.
Response：Thanks to the constructive comments of the expert, the manuscript has been shortened and revised throughout and highlighted in red.
I would like to offer an explanation for the appearance of squares:
I uploaded the file in the system word, PDF version of the document, there is no formula in the square problem, it’s due to the editing side of the late transfer of PDF format file to your review of the formula to show the incomplete problem. In order to solve the re-emergence of the square problem, the author has been unrecognized formula characters real set "R" and non-integer set "Z" replaced by bold "R" and "Z".
Author Response File: 
Author Response.pdf
