Method Research and Structural Design of Segmented Shrimp Clamping

Round 1

Reviewer 1 Report

In order to solve the problem of difficult clamping caused by the uncertainty of shrimp position after orientation, a segmented shrimp clamping method was proposed and a segmented shrimp clamping mechanism was designed.The feasibility of segmented clamping method was demonstrated by mathematical modeling and theoretical analysis, and then the rationality of structural design was verified by simulation and experiment. This study can provide support for the application of non-positioning adaptive shrimp clamping technology.

1. In the introduction, it is mentioned that "The rotary shrimp peeling machine developed by Jonsson Company in the United States uses a station-type clamping mechanism". What are the operating characteristics of the station-type clamping mechanism? What are the differences between the segmented shrimp clamping mechanism designed in this paper and the station-type clamping mechanism, and what are the improvements?

2. In section 2.1.2, the description of segmented clamping method is not intuitive enough, and it is recommended to add a schematic diagram of segmented clamping method to achieve the effect of auxiliary description.

3. What are the two rows of bulges distributed on the upper clamping surface in Figure 8 and what are their functions?

4. Why are only two sets of clamping units set in the 3D model of the clamping mechanism? Is it representative?

5. It is recommended to mark the clamping plate mentioned in section 3.2 in Figure 16 and introduce its functions in the text.

6. In Section 2.4, why are the clamping success rate and shrimp integrity rate taken as the indicators of the clamping test?

7. The references are not comprehensive enough, and it is recommended to supplement relevant references in the research background and the test.

Author Response

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Author Response File: Author Response.pdf

Reviewer 2 Report

By analyzing the relationship between prawn transportation and clamping conditions, this study proposed a segmented prawn clamping method and designed a segmented prawn clamping mechanism for adaptive prawn clamping. This research can serve as a reference for the optimization design of the prawn clamping mechanism. Before the manuscript is published, I believe it is necessary to revise a number of significant aspects of the study. My comments and suggestions are listed below.

   (1)The mechanical modeling of shrimp equilibrium in 2.1.3 is unreasonable. Due to the different contact points between the prawn and each clamping mechanism and the different direction of friction force, there is no theoretical justification for considering the friction force to be horizontal. In addition, article 3.2 notes that the centrifugal force caused by the rotation of the clamping mechanism affects the successful clamping of shrimp, but this force is not accounted for in the mechanical modeling of balance. In addition to considering the balance of the combined force on the XOY plane, the model can also account for the balance of the external torque.

  (2)\In this paper, only the surface parameters of the fastening mechanism are designed, and other important structural parameters, such as the length of the fastening mechanism, are not subject to theoretical analysis. In addition, the number of fastening elements' design lacks a theoretical basis.

     (3) In section 2.2.3, it is stated that the selection of spring parameters is the key to the tightening, but the selection of spring parameters in this paper lacks a theoretical foundation and the required explanation.

     (4)In 2.2.3, it is stated that the selection of spring parameters is the key to influencing shrimp clamping; however, the selection of spring parameters in this paper lacks a theoretical foundation and the required explanation.

   (5)This paper's formulation of the formula is not standard. For example, HI should not be italicized in Equation 8. Please review and revise the entire document.

Author Response

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Author Response File: Author Response.pdf

Reviewer 3 Report

The work deals with quite interesting issues in regard to analyzing the matching relationship between the clamping mechanism and the shrimp conveying conditions, proposing a segmented shrimp clamping method designing a segmented shrimp clamping mechanism, etc. However, revision is still needed before the acceptance of this manuscript.

A very large number of References (11 out of 28) are by one author. I would like more modern literature, although it is understood that the topic is very specific.

I think that explanations of the sizes below the formulas would be much more valuable than in the text or in the figure title. Please correct.

Look at the layout again: 2 dashes explain the sizes after Formula 5 and 6.

Figure 6, 7and Figure 8: usually follows the name of the figure followed by an explanation of the sizes.

The methodology is described in great detail. But the results and analysis section of the test is very narrow. It is advisable, to focus on the more vivid presentation of results. The results must be compared with the results of different authors.

Author Response

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Author Response File: Author Response.pdf

Round 2

Reviewer 2 Report

The author has made a relatively perfect improvement on the paper, and proposes to publish it.