Method and device for reducing shell-meat connection force, shelling method and device and electronic equipment

Abstract

The invention relates to the technical field of food processing, and provides a method and device for reducing shell-meat connection force, a shelling method and device and electronic equipment. According to the method for reducing the shell-meat connection force provided by the invention, the pressure fluid introduced into the internal environment of the to-be-hulled object is used for promoting the pressure fluid to enter the space between the accommodating object and the shell of the to-be-hulled object, so that the accommodating object is separated from the shell by virtue of the pressure fluid, and the original shell-meat connection force between the accommodating object and the shell is reduced; by means of the pressure fluid, the contained objects which are separated from the shell under the action of the pressure fluid can move relative to the shell more easily, so that the shelling force needed by shelling is reduced, shelling is easier, and the shelling efficiency is higher. Meanwhile, due to the separation effect of the pressure fluid, the integrity of the contained objects can be guaranteed more easily, and the situation that the contained objects are torn and still attached to the shell under the tearing effect of shell-meat connecting force and external shelling force is avoided.

Description

Technical Field

[0001] The present application relates to the field of food processing technology, and in particular to a method and device for reducing the connection force between shell and meat, a shelling method and device, and electronic equipment. Background Art

[0002] Ingredients such as shrimp require shelling from other ingredients, such as the tails. For example, shrimp production begins with frozen, headless tails. After thawing, opening the backs, peeling the shells, deveining, freezing, and packaging, the finished product is finally ready.

[0003] Currently, manual shelling is the primary method for shelling shrimp. The few existing shrimp processing equipment can be divided into two categories: disc-type and roller-type. Years of practical application have shown that both technologies have significant limitations, resulting in low user acceptance and limited widespread adoption.

[0004] The main problem with manual shelling and existing equipment is damage to the contents inside the object to be shelled. For example, in the case of shrimp, the shrimp meat is damaged, which leads to low quality of the finished shrimp. In particular, the small tail limbs of the shrimp are seriously damaged, which not only affects the appearance of the shrimp, but also the shrimp meat in the tail limbs accounts for about 2% of the total weight of the shrimp, resulting in loss and waste of shrimp meat. Summary of the Invention

[0005] In view of this, the present application provides a method and device for reducing the shell-meat connection force, a shelling method and device, and an electronic device, with the aim of solving the above technical problems to a certain extent.

[0006] In a first aspect, the present application provides a method for reducing the shell-meat connection force, the method for reducing the shell-meat connection force is used to reduce the shell-meat connection force of an object to be shelled, the object to be shelled having a shell and an object contained in the shell, the shell being connected to the object and having the shell-meat connection force, the shell having an opening connecting an internal environment of the shell with an external environment where the shell is located, the method for reducing the shell-meat connection force comprising:

[0007] A pressurized fluid is introduced into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing.

[0008] Based on the above technical solution, optionally, the step of introducing a pressurized fluid into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing includes:

[0009] confirming a pressure fluid inlet position on the housing, wherein the pressure fluid inlet position is located outside the opening;

[0010] The housing is opened at the pressure fluid inlet position to allow pressure fluid to pass into the internal environment of the housing, so that the pressure fluid enters between the container and the housing.

[0011] On the basis of the above technical solution, optionally, confirming the pressure fluid introduction position on the housing includes:

[0012] A plurality of pressure fluid inlet positions are identified, wherein the plurality of pressure fluid inlet positions are distributed on the housing according to the shape of the housing.

[0013] Based on the above technical solution, optionally, the shell has an extension direction, the open portion is located on one side of the shell in the extension direction, the shell includes a plurality of shell portions connected sequentially in the extension direction, the shell has a connection strength reduction position, and the plurality of shell portions are divided into a plurality of groups by the connection strength reduction position;

[0014] The plurality of pressure fluid inlet positions are distributed on the housing according to the shape of the housing, comprising: providing one or more pressure fluid inlet positions for each group;

[0015] The position where the connection strength is reduced represents a position where the connection strength between the shell parts on both sides of the position is lower than the connection strength between the shell parts on both sides of the position and the respective adjacent shell parts.

[0016] Based on the above technical solution, optionally, the step of introducing a pressurized fluid into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing includes:

[0017] Confirm the pressure fluid inlet position on the housing,

[0018] A pressure fluid delivery element is configured to pass through the pressure fluid inlet position to introduce pressure fluid into the internal environment of the shell, so that the pressure fluid enters between the contents and the shell, wherein the external dimension N of the pressure fluid delivery element on the flow cross section satisfies: N≤5mm, and the dimension in the length direction is greater than 0.1mm.

[0019] Based on the above technical solution, optionally, the step of introducing a pressurized fluid into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing includes:

[0020] A pressure fluid path is configured to introduce pressure fluid into the internal environment of the housing, wherein the cross-sectional area of ​​the pressure fluid path is greater than or equal to 0.007 mm 2 .

[0021] Based on the above technical solution, optionally, the step of introducing a pressurized fluid into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing includes:

[0022] configuring a pressure fluid path for communicating a pressure fluid to an internal environment of the housing;

[0023] The pressure fluid pressure P at the end of the pressure fluid path facing the object to be shelled is configured so that P satisfies: the external environment pressure ≤ P ≤ the external environment pressure + 0.5 MPa

[0024] A second aspect of the present application provides a device for reducing the shell-meat connection force, the device for reducing the shell-meat connection force is used to reduce the shell-meat connection force of an object to be shelled, the object to be shelled having a shell and an object contained in the shell, the shell being connected to the object and having the shell-meat connection force, the shell having an opening connecting the internal environment of the shell and the external environment where the shell is located, the device for reducing the shell-meat connection force comprising:

[0025] A pressure fluid introduction device is used to introduce pressure fluid into the internal environment of the housing so that the pressure fluid enters between the container and the housing.

[0026] On the basis of the above technical solution, optionally, the pressure fluid introduction device includes a pressure fluid delivery element, and the pressure fluid delivery element is used to penetrate the shell to introduce pressure fluid into the internal environment of the shell.

[0027] On the basis of the above technical solution, optionally, the pressure fluid introduction device includes a plurality of pressure fluid delivery elements, and the plurality of pressure fluid delivery elements are arranged on the outside of the shell according to the shape of the shell.

[0028] Based on the above technical solution, optionally, the shell has an extension direction, the open portion is located on one side of the shell in the extension direction, the shell includes a plurality of shell portions connected sequentially in the extension direction, the shell has a connection strength reduction position, and the plurality of shell portions are divided into a plurality of groups by the connection strength reduction position;

[0029] providing one or more pressure fluid delivery elements for each of the groups;

[0030] The position where the connection strength decreases represents a position where the connection strength between the shell portions on both sides of the position is different from the connection strength between the shell portions on both sides of the position and the respective adjacent shell portions.

[0031] On the basis of the above technical solution, optionally, the pressure fluid introduction device includes a pressure fluid delivery element, which is used to introduce pressure fluid into the internal environment of the shell, wherein the external dimension N of the pressure fluid delivery element on the flow cross section satisfies: N≤5mm, and the dimension in the length direction is greater than 0.1mm.

[0032] On the basis of the above technical solution, optionally, the pressure fluid delivery element has a pressure fluid path, and the cross-sectional area of ​​the pressure fluid path is greater than or equal to 0.007 mm 2 .

[0033] On the basis of the above technical solution, optionally, the pressure fluid introduction device includes a pressure fluid delivery element, the pressure fluid delivery element having a pressure fluid path for introducing pressure fluid into the internal environment of the housing, and the cross-sectional area of ​​the pressure fluid path is greater than or equal to 0.007mm 2 .

[0034] Based on the above technical solution, optionally, the pressure fluid introduction device includes a pressure fluid delivery element and a pressure fluid source for providing pressure fluid to the pressure fluid delivery element, wherein the pressure fluid delivery element is used to introduce pressure fluid into the internal environment of the housing, wherein the pressure fluid delivery element has a pressure fluid path for introducing pressure fluid into the internal environment of the housing;

[0035] The pressure fluid source and the pressure fluid delivery element are configured so that the pressure fluid pressure P at the end of the pressure fluid path facing the object to be shelled satisfies: the external environmental pressure ≤ P ≤ the external environmental pressure + 0.5 MPa.

[0036] A third aspect of the present application provides a shelling method for shelling an object to be shelled, wherein the object to be shelled comprises a shell and an object contained within the shell, the shell being connected to the object and having a shell-to-meat connection force, and the shell having an opening connecting an internal environment of the shell with an external environment where the shell is located. The shelling method comprises:

[0037] introducing a pressurized fluid into the internal environment of the shell so that the pressurized fluid enters between the contents and the shell to reduce the shell-to-shell connection force;

[0038] The contents are urged to move toward the opening portion and escape from the housing through the opening portion.

[0039] On the basis of the above technical solution, optionally, the deshelling method further comprises:

[0040] During the process of causing the content to move toward the opening portion and to separate from the housing through the opening portion, the pressure fluid is continuously introduced into the internal environment of the housing, so that the pressure fluid enters between the content and the housing.

[0041] On the basis of the above technical solution, optionally, the deshelling method further comprises:

[0042] After the pressure fluid is introduced into the internal environment of the housing so that the pressure fluid enters between the contents and the housing, the contents are urged to move toward the opening portion and detach from the housing through the opening portion.

[0043] A fourth aspect of the present application provides a shelling device for shelling an object to be shelled, wherein the object to be shelled comprises a shell and an object contained in the shell, the shell being connected to the object and having a shell-meat connection force, and the shell having an opening connecting an internal environment of the shell with an external environment where the shell is located. The shelling device comprises:

[0044] a pressure fluid introduction device for introducing pressure fluid into the internal environment of the housing so that the pressure fluid enters between the contents and the housing;

[0045] A force applying device is configured to move the contained object toward the opening portion and separate from the housing through the opening portion.

[0046] On the basis of the above technical solution, optionally, the shelling device further includes a clamping device, the clamping device carries and clamps the shell;

[0047] The shell has an extension direction, the open portion is located on one side of the extension direction of the shell, the clamping device is configured to clamp the shell in a direction perpendicular to the extension direction, and the clamping device is also configured to clamp the shell on the other side of the extension direction of the shell.

[0048] A fifth aspect of the present application provides a method for shelling shrimp, the method being used for shelling headless shrimp, the headless shrimp comprising a covering shell and shrimp meat located inside the covering shell, the covering shell being connected to the shrimp meat and having a shell-meat connection force, the covering shell having an opening portion that opens from a headless position, the opening portion communicating an internal environment of the covering shell with an external environment where the covering shell is located, the method comprising:

[0049] A pressurized fluid is introduced into the internal environment of the coating shell so that the pressurized fluid enters between the shrimp meat and the coating shell.

[0050] A sixth aspect of the present application provides a shrimp shelling device, the shrimp shelling device being used to shell headless shrimp, the headless shrimp comprising a covering shell and shrimp meat located inside the covering shell, the covering shell having an opening portion that opens from a headless position, the opening portion communicating an internal environment of the covering shell with an external environment where the covering shell is located, the shrimp shelling device comprising: a pressure fluid introduction device, the pressure fluid introduction device introducing a pressure fluid into the internal environment of the covering shell, such that the pressure fluid enters between the shrimp meat and the covering shell;

[0051] A force applying device is configured to enable the shrimp meat to move toward the opening portion and to separate from the covering shell through the opening portion.

[0052] A seventh aspect of the present application provides an electronic device, comprising:

[0053] processor;

[0054] a memory for storing instructions executable by the processor,

[0055] Among them, when the processor executable instructions are run by the processor, they prompt the processor to execute the method of reducing the shell-meat connection force as described above, or execute the shelling method as described above, or execute the shrimp shelling method as described above.

[0056] According to the method for reducing the shell-meat connection force provided by the present application, a pressure fluid introduced into the internal environment of the object to be shelled is used to force the pressure fluid to enter between the contents of the object to be shelled and the shell, so that the contents and the shell are separated by the pressure fluid, thereby reducing the original shell-meat connection force between the contents and the shell, making it easier for the contents that have been separated from the shell by the pressure fluid to move relative to the shell, thereby reducing the shelling force required for shelling, making shelling easier and more efficient. At the same time, due to the separation effect of the pressure fluid, it is easier to ensure the integrity of the contents, avoiding the situation where the contents are torn and still attached to the shell due to the tearing of the contents by the shell-meat connection force and the external shelling force.

[0057] According to the shelling method provided in the present application, since pressurized fluid is introduced between the shell and the contents, the pressurized fluid is conducive to promoting the balance between the above-mentioned areas and the external air pressure, that is, it is conducive to reducing the pressure difference between the above-mentioned areas and the external air pressure, thereby effectively reducing the vacuum degree in these areas and reducing the vacuum suction provided by these areas, thereby reducing the required shelling force, and at the same time helping to ensure the integrity of the contents.

[0058] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0060] Figure 1 A schematic diagram showing a flow chart of statically introducing pressure fluid in a shelling method provided in an embodiment of the present application is shown.

[0061] Figure 2 A schematic diagram showing a flow chart of dynamically introducing pressure fluid in a shelling method provided in an embodiment of the present application is shown.

[0062] Figure 3 A schematic diagram showing a plan view of a headless shrimp to be shelled as an embodiment of the present application.

[0063] Figure 4 A schematic diagram showing another plan view of a headless shrimp to be shelled as an embodiment of the present application is shown.

[0064] Figure 5 Shown Figure 2 A partial view of the .

[0065] Figure 6 A schematic diagram showing a method for reducing the shell-meat connection force provided in an embodiment of the present application, taking pressure fluid gas as an example, in which gas is interposed between the shell and the contents.

[0066] Figure 7 A schematic diagram showing a cross-sectional view of an object to be shelled, taking headless shrimp as an example of the object to be shelled, before the method of reducing the shell-meat connection force provided by an embodiment of the present application is implemented.

[0067] Figure 8 A schematic diagram of a cross-sectional view of an object to be shelled, using headless shrimp as an example of the object to be shelled, after reducing the shell-meat connection force provided by an embodiment of the present application using gas as a pressure fluid is shown.

[0068] Figure 9 A schematic diagram of an experimental device for verifying the reduction of shell-meat connection force provided in an embodiment of the present application is shown.

[0069] Figure 10 A schematic diagram of a three-dimensional diagram of a double-air needle example for verifying the device for reducing the shell-meat connection force provided in an embodiment of the present application is shown.

[0070] Figure 11A schematic diagram of a plan view of an example of a single gas needle for verifying the device for reducing the shell-meat connection force provided in an embodiment of the present application is shown.

[0071] Figure 12 A schematic diagram of a three-dimensional diagram of a single gas needle example for verifying the device for reducing the shell-meat connection force provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0072] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0073] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0074] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0075] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0076] According to the first aspect of the embodiment of the present application, a method for reducing the shell-meat connection force is provided. Figures 1 to 12 The steps and execution process of the unpacking method are described in detail.

[0077] According to the method for reducing the shell-meat connection force provided in an embodiment of the present application, the method for reducing the shell-meat connection force is used to reduce the shell-meat connection force of an object to be shelled, the object to be shelled has a shell and a content contained in the shell, the shell and the content are connected and have the aforementioned shell-meat connection force, and the shell has an open part that connects the internal environment of the shell and the external environment where the shell is located.

[0078] In an embodiment, the method for reducing the shell-meat connection force is intended to reduce the shell-meat connection force of the object to be shelled, that is, to separate the shell and the contents contained in the shell from each other to obtain at least one of the two. As an example, the object to be shelled may naturally have the open portion as described above. However, the open portion of the object to be shelled may also be obtained by processing a natural material, that is, the natural material is processed to obtain the object to be shelled having the open portion as described above.

[0079] For the latter example described above, the natural material can be, for example, shrimp, such as the decapod shrimp family represented by the white shrimp. The shelled material obtained after processing is the shrimp tail left after removing the head. The open part is located at the connection position of the original shrimp head and shrimp tail because the shrimp head is removed and it is open here.

[0080] In an embodiment, the method for reducing the shell-meat connection force specifically includes the following steps:

[0081] The pressurized fluid is introduced into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing.

[0082] Thus, according to the method for reducing the shell-meat connection force provided by the embodiment of the present application, the pressure fluid introduced into the internal environment of the object to be shelled is used to force the pressure fluid to enter between the contents of the object to be shelled and the shell, so that the contents and the shell are separated by the pressure fluid, thereby reducing the original shell-meat connection force between the contents and the shell, making it easier for the contents that have been separated from the shell by the pressure fluid to move relative to the shell, thereby reducing the shelling force required for shelling, making shelling easier and more efficient. At the same time, due to the separation effect of the pressure fluid, it is easier to ensure the integrity of the contents, avoiding the situation where the contents are torn and still attached to the shell under the tearing of the shell-meat connection force and the external shelling force.

[0083] Furthermore, due to the relative movement of the contents relative to the shell during shelling, the original location of the contents is no longer filled. Furthermore, when the shell and the contents are bound to a certain degree, the external air pressure cannot or cannot fully flow into the empty area of ​​the shell through the opening to achieve pressure balance.

[0084] Therefore, a certain degree of vacuum is generated in the aforementioned area, which provides a vacuum suction force that hinders the movement of the contents toward the opening, and also increases the shelling force required, which is not conducive to the shelling process. At the same time, because the shelling force directly acts on the contents, excessive shelling force is not conducive to ensuring the integrity of the container.

[0085] According to the method of reducing the shell-meat connection force provided in the embodiment of the present application, since pressurized fluid is introduced between the shell and the contents, these pressurized fluids are conducive to promoting the balance between the above-mentioned areas and the external air pressure, that is, they are conducive to reducing the pressure difference between the above-mentioned areas and the external air pressure, thereby effectively reducing the vacuum degree in these areas and reducing the vacuum suction provided by these areas, thereby reducing the required shelling force and helping to ensure the integrity of the contents.

[0086] As an example, in the embodiments, the pressure fluid may be, for example, a pressurized gas. The subsequent description uses gas as an example. Furthermore, as an example, the pressure fluid may also be, for example, a pressurized liquid. It should be noted that descriptions of the structure, shape, and dimensions of the gas delivery element related to pressurized gas also apply to the liquid delivery element.

[0087] The method for reducing the shell-meat connection force provided in the embodiment of the present application is particularly suitable for shelling headless shrimp, and is particularly suitable for separating the shrimp shell and other covering outer shells (shells) and shrimp meat (contents) and reducing the vacuum suction caused by the shells during the shelling process. In order to clarify this point, it is necessary to explain it in conjunction with the structure of headless shrimp.

[0088] Specifically, if Figures 3 to 5 As shown. Headless shrimp consist of six segments of the shell (shells 1, 2, 3, 4, 5, and 6, referred to as the shell section below), five tail limbs (tail limbs 1, 2, 3, 4, and 5, collectively referred to as a shell section, as described later), the shrimp membrane in the shrimp abdomen, and the shrimp meat wrapped in both the shell and the tail limbs. The shell described above is a general term for the shrimp shell and the shrimp membrane in the shrimp abdomen.

[0089] In headless shrimp, the flanks and dorsal parts are connected by a hard shell and a continuous, soft membrane between adjacent shells, while the ventral part is the membrane. The flanks, dorsal part, abdomen, and tail limbs enclose the shrimp meat in a relatively closed whole that is open toward the head.

[0090] In headless shrimp, the shrimp shell is hinged to the adjacent shrimp shells through a hinge joint, allowing the shrimp shells to rotate relative to each other and providing the main connecting force between adjacent shrimp shells. As for the shrimp membrane, its strength is relatively low and it is easy to break and fracture.

[0091] In headless shrimp, the joint between shells 3 and 4 is relatively weak and easily broken, while the other joints are stronger. In other words, the connection between shells 3 and 4 is significantly weaker than the connection between shells 3 and 2, and between shells 4 and 5. Furthermore, the joints in the shrimp body are approximately 0.5 mm thick, while the shell is approximately 0.1 mm thick.

[0092] In headless shrimp, shells 4, 5 and 6 are easier to form a whole through strong joints and the shrimp shells are relatively flat. Shells 1, 2 and 3 are easier to form a whole through strong joints and the shrimp shells are relatively round. The shape retention effect of the whole composed of shells 4, 5 and 6 is better than that of the whole composed of shells 1, 2 and 3.

[0093] In the headless shrimp, the tail limb 3 is strongly connected to the shell 6 through a hinge joint. The tail limb 3 is a cavity structure with a larger part toward the shrimp head and a smaller part toward the shrimp tail, and the cavity contains shrimp meat.

[0094] In headless shrimp, tail limbs 1 and 5 can be understood as bilaterally symmetrical, and are sheet-like cavity structures, in which the shrimp meat is contained; tail limbs 2 and 4 can be understood as bilaterally symmetrical, and are sheet-like cavity structures, in which the shrimp meat is contained.

[0095] In headless shrimp, tail limbs 1 and 2 are strongly connected to large joints through their respective small joints, and the small joints can rotate relative to the large joints; the large joints are strongly connected to the shell 6, and the large joints can rotate relative to the shell 6; the large joints have a cavity structure that is smaller toward the shrimp head and larger toward the shrimp tail, and the cavity contains shrimp meat.

[0096] In headless shrimp, the tail limbs 4 and 5 are strongly connected to the large joints through their respective small joints, and the small joints can rotate relative to the large joints; the large joints are strongly connected to the shell 6, and the large joints can rotate relative to the shell 6; the large joints have a cavity structure that is smaller towards the shrimp head and larger towards the shrimp tail, and the cavity contains shrimp meat.

[0097] Based on the above structure of headless shrimp, the shelling process causes the shrimp shell and shrimp meat to generate forces in opposite directions, thereby causing the shrimp shell and shrimp meat to move relative to each other, thereby separating the shrimp meat from the shrimp shell and tail limbs. The relative movement during the shelling process is as follows:

[0098] The shrimp shell and the shrimp meat exert opposing forces. Because the shrimp meat is soft, it undergoes elastic deformation as the force gradually increases. Then, because the shrimp shell is hard and has strong shape retention, as the elastic deformation increases, the shrimp meat gradually overcomes the bonding force between the shell and the meat, creating a gap between the shell and the meat. Subsequently, as the force increases and transmits further, the shrimp meat begins to move against the shell in the direction of shedding. Because the shrimp shells 4, 5, 6 and the tail limbs are tightly attached to the shrimp meat, a vacuum zone is created during the separation of the shell and the meat, hindering the relative movement of the shell and the meat.

[0099] Then, as the shrimp meat moves further, the shrimp meat in the large joint of the tail limb begins to move forward. Since the large joint has a cavity structure with a smaller part toward the shrimp head and a larger part toward the shrimp tail, the shrimp meat in the cavity will block the narrow area of ​​the head of the large joint during the movement toward the head, increasing the resistance to shelling. At the same time, a larger vacuum area will be generated in the tail limb, further hindering the relative movement of the shell and meat.

[0100] Finally, as the force in opposite directions between the shrimp shell and the shrimp meat gradually increases, part of the shrimp meat on the shrimp tail limbs detaches, the vacuum quickly disappears, the resistance of the large joints quickly disappears, the resistance between the shell and the meat drops sharply, the shell and the meat move rapidly relative to each other, and the shelling is completed.

[0101] Therefore, for headless shrimp with relatively tight connections between the shell and meat, the resistance that needs to be overcome by the shelling force can be summarized as follows. The first is the biofilm bonding force, which connects the shell and meat. Since the shrimp meat undergoes elastic deformation during the shelling process, separating the shell and meat from the shell, the biofilm bonding force must be overcome first. The strength of this bonding force is related to the degree of dehydration and freshness of the shrimp. For high-quality shrimp, the meat is well-moisturized and fresh, and the shell-meat biofilm bonding force is strong, while for low-quality shrimp, the biofilm bonding force is weak.

[0102] Next is the vacuum negative pressure mentioned in the above description, that is, during the shell-meat separation process, vacuum negative pressure will be generated locally when the shell and meat are separated from each other to create a narrow gap, especially the vacuum negative pressure in the small tail limb part is more obvious, and at the same time, when the large joint of the tail limb is blocked by shrimp meat, the vacuum negative pressure in the tail limb part will increase significantly.

[0103] In addition, the shell-meat squeezing force is also one of the resistances to shelling. As mentioned above, because the large joint of the tail limb has a cavity structure with a small part towards the shrimp head and a large part towards the shrimp tail, the cavity contains the shrimp meat. Therefore, the shrimp meat in the cavity will block the narrow area of ​​the head of the large joint during its movement towards the head, thereby causing a large shell-meat squeezing force. In addition, the clamping and force applied to the meat or shell by the outside world may directly generate some secondary connecting forces, or may cause the shrimp body to deform and indirectly generate additional shell-meat connecting forces.

[0104] Therefore, with respect to the relatively important biofilm connection force, vacuum negative pressure and shell-meat squeezing force in shelling resistance, the method for reducing the shell-meat connection force provided in the embodiment of the present application can effectively reduce these three resistances by introducing gas between the shell and the meat.

[0105] As mentioned in the above description, when compressed gas is introduced into the shrimp shell and shrimp meat, the shrimp side, shrimp back, shrimp abdomen and tail limbs wrap the shrimp meat into a relatively closed whole open toward the shrimp head. The gas will diffuse rapidly and basically fill the entire shrimp shell and shrimp meat area. Under the action of the gas, the shrimp shell expands and the shrimp meat contracts, destroying the biofilm connection, thereby reducing the biofilm connection force.

[0106] As for the vacuum suction generated by the vacuum negative pressure, since the gas introduced has a certain pressure and good gas fluidity, it can enter the small areas where the shrimp shell and shrimp meat are closely attached, thereby retaining some gas in each small area. During the shelling process, the presence of gas in the gap can reduce the vacuum negative pressure.

[0107] Since the introduced gas has a certain pressure, the shrimp shell expands. Therefore, during the shelling process, the large joints of the shrimp shell expand and become larger, which will significantly reduce the squeezing pressure on the internal shrimp meat, thereby reducing the squeezing pressure on the shell and meat.

[0108] According to the method for reducing the shell-meat connection force provided in an embodiment of the present application, ventilation can be carried out by utilizing a gas delivery element such as an air needle, which can be inserted into the shell to introduce gas into the shell.

[0109] According to the method for reducing the shell-to-meat connection force provided in an embodiment of the present application, the step of introducing gas into the internal environment of the shell so that the gas enters between the contents and the shell may include:

[0110] Confirming a gas inlet position on the housing, wherein the gas inlet position is located outside the opening;

[0111] The housing is opened at the gas inlet position to allow gas to enter the internal environment of the housing, so that the gas enters between the contents and the housing.

[0112] According to the method for reducing the shell-to-meat connection force provided in an embodiment of the present application, after confirming the gas inlet position in the area outside the opening portion of the shell, the gas inlet position is opened and then gas is introduced therein. Providing the gas inlet position in the area outside the opening portion can better promote the flow of gas between the shell and the accommodating portion. In other words, the gas path can be relatively shortened. As an example, the gas inlet position can be, for example, the insertion position of the gas needle mentioned above. As the gas needle is inserted into the shell, the gas inlet position is opened.

[0113] According to the method for reducing the shell-to-meat connection force provided in an embodiment of the present application, the step of confirming the gas inlet position on the shell may include:

[0114] A plurality of gas inlet positions are identified, wherein the plurality of gas inlet positions are distributed on the shell according to the shape of the shell.

[0115] In this way, according to the method of reducing the shell-meat connection force provided in the embodiment of the present application, multiple gas entry positions can further shorten the gas diffusion path, thereby ensuring that the gas can be fully introduced between the shell and the contents.

[0116] Furthermore, as described above, in embodiments, the distribution of gas inlet locations can be based on the shape of the shell. For example, if the shell is strip-shaped, the gas inlet locations can be distributed along its extending direction. In other examples, if the shell has a curved surface, the gas inlet locations can be distributed along the changing area of ​​the curved surface. In general, whether the shell is a strip-shaped shell such as a shrimp shell or other shell shapes, the gas inlet locations can be arranged along the changing trend of its outer surface.

[0117] According to the method for reducing the shell-meat connection force provided by an embodiment of the present application, as described above, as an example, the shell may have an extension direction, the open portion may be located on one side of the shell in the extension direction, the shell may include multiple shell portions connected in sequence in the extension direction, and the shell may have a connection strength reduced position, and the aforementioned multiple shell portions can be divided into multiple groups according to the connection strength reduced position.

[0118] Therefore, in this example, the step of distributing the plurality of gas inlet locations on the shell according to the shape of the shell as described above may include providing one or more gas inlet locations for each group. In an embodiment, a location with reduced connection strength may represent a location where the connection strength between the shell portions on either side of the location is lower than the connection strength between the shell portions on either side of the location and their respective adjacent shell portions.

[0119] In an embodiment, the connection strength reduction position causes a significant reduction in connection strength at that position, and the extension trend presented when extending to the connection strength reduction position is different from the previous extension trend. For example, the extension trend of a previous continuous group was relatively straight, but due to the sudden reduction in connection strength, the next portion begins to bend relative to the previous relatively straight portion, causing the extension trend to change.

[0120] Therefore, due to changes in extension trends, such as the tendency of the connection strength to decrease from being relatively straight to being curved, the gas flowing through the shell will experience greater pressure loss after passing through such curved locations. This will also reduce the space available for gas flow at these locations relative to relatively straight locations. Therefore, it is considered to configure corresponding gas inlet locations for the groups on both sides of the location where the connection strength decreases, to minimize the possibility that the gas in one group on either side of the location is completely supplied by the gas in the other group passing through the curved location. This will further facilitate the comprehensive diffusion of gas between the shell and the contents.

[0121] As mentioned in the above description, shells 1 to 6 can be used as the shell parts mentioned above, and shells 1 to 3 and shells 4 to 6 can be used as two groups respectively. Because the hinge points between the two (i.e., the connection strength is reduced), that is, the hinge force between shells 3 and 4 is weak, this also causes shells 4 to 6 to bend relative to shells 1 to 3. Therefore, gas inlet positions and corresponding gas needles can be configured for both groups. For example, gas needles can be inserted into the corresponding shell parts to introduce gas into the corresponding gas inlet positions.

[0122] Based on the above description, the following still takes the headless shrimp as an example and combines the experimental data to illustrate the distribution of the gas introduction position.

[0123] like Figure 9 As shown in the figure, the experimental structure experiment was set up, the tail limbs and shrimp meat were clamped separately, and compressed air was introduced into different parts of the shrimp body. Then, opposite directions of force were applied between the shrimp meat and the shrimp shell, and the magnitude of the force was recorded. The experimental records are as follows, among which, the tail limb retention situation: that is, the tail limb part that is successfully retained on the main body of the shrimp meat after shelling, "0" means it is not retained; the total mass is the total mass of the headless shrimp.

[0124]

[0125] Table 1: 10 groups of comparative examples of non-ventilated shelling

[0126]

[0127] Table 2: 10 groups of examples for selecting gas inlet positions at the shell 1

[0128]

[0129] Table 3: 10 groups of examples for selecting gas inlet positions at shell 2

[0130]

[0131] Table 4: 10 groups of examples for selecting gas inlet positions at shell 3

[0132]

[0133]

[0134] Table 5: 10 groups of examples for selecting gas inlet positions at the shell 4

[0135]

[0136] Table 6: 10 groups of examples for selecting gas inlet positions at the shell 5

[0137]

[0138] Table 7: 10 groups of examples for selecting gas inlet positions at the shell 6

[0139]

[0140]

[0141] Table 8: 10 groups of examples of selecting gas inlet positions at shell 2 and shell 6

[0142]

[0143] Table 9: Statistics and summary of the data in Tables 1 to 8 above

[0144] The experiment found that since shells 4, 5 and 6 are easier to form a whole through strongly connected joints, shells 1, 2 and 3 are easier to form a whole through strongly connected joints. When a ventilation point is set for shells 4, 5 and 6 and sufficient compressed gas is introduced, the shelling force is significantly reduced; when a ventilation point is set for shells 2 and 3 and sufficient compressed gas is introduced, the shelling force is reduced, but the effect is slightly worse than ventilation from shells 4, 5 and 6; when a ventilation point is set for shell 1 and sufficient compressed gas is introduced, the gas filling effect is poor due to the open head of the shrimp shell, and the effect of reducing the shelling force is not obvious.

[0145] The experiment also found that when sufficient compressed air was introduced into shells 2 and 3 through a single ventilation point, the separation of shells 1, 2, and 3 from the internal shrimp meat was significantly greater than when sufficient compressed air was introduced into shells 4, 5, and 6 through a single ventilation point. When sufficient compressed air was introduced into shells 2 through 6 through a single ventilation point, the tail limb retention rate was significantly improved.

[0146] Therefore, setting a point between shells 4 to 6 and between shells 2 and 3 to introduce sufficient compressed gas can achieve a good shell-meat separation effect and tail limb retention rate.

[0147] In addition, in the shelling device, the air needle can be arranged at least one point, and can be arranged near the front side of the shrimp body support platform. It is preferred to arrange two air needles on the same side (such as Figure 10 ), the spacing between the two air needles varies for shrimps of different sizes. When the shrimp body length (excluding the tail limbs) is 50mm, the preferred spacing between the two air needles is 15-45mm. When the shrimp body length (excluding the tail limbs) is 90mm, the preferred spacing between the two air needles is 20-65mm. In general, to accommodate shrimp of different lengths and specifications, the preferred spacing between the two air needles is between 15-45mm.

[0148] According to the method for reducing the shell-to-meat connection force provided in an embodiment of the present application, the step of introducing gas into the internal environment of the shell so that the gas enters between the contents and the shell may include:

[0149] A gas delivery element (such as the gas needle mentioned in the above description) is configured to pass through the gas inlet position to introduce gas into the internal environment of the shell, so that the gas enters between the contents and the shell, wherein the external dimension N of the gas delivery element on the flow cross section satisfies: N≤5mm, and the dimension in the length direction is greater than 0.1mm.

[0150] In embodiments, an excessively large external dimension of the flow cross-section, for example, greater than 5 mm, makes it difficult to insert the gas delivery element into the housing, or even if inserted, damages the integrity of the housing. In embodiments, it should be noted that the gas delivery element has a lengthwise direction as mentioned above, i.e., the gas delivery element extends along the lengthwise direction. Furthermore, the "flow cross-section" mentioned above refers to the flow cross-section of the gas flow path within the gas delivery element. The flow cross-section at a particular location along the gas flow path should be understood to include the portion of the gas flow path intercepted by a plane perpendicular to the gas flow direction at that location as the flow cross-section at that location.

[0151] In embodiments, in conjunction with the above description, when the gas flow path is not a straight path, such as a zigzag path, the gas flow direction may be different at different locations along the gas flow path. As an example, the gas flow path may also be a straight path, and the direction of extension may be the length direction of the gas delivery element. Therefore, the flow cross section herein refers to the portion of the gas flow path intercepted by a plane perpendicular to the length direction.

[0152] In the embodiments, the "external dimensions of the flow cross-section" mentioned above should be understood to include the external dimensions of the resulting flow cross-section. These external dimensions affect both the integrity of the housing when the gas delivery element penetrates the housing and the dimensions of the gas delivery path within the gas delivery element. Therefore, the external dimensions can essentially ensure the integrity of the housing by limiting the diameter of the circumscribed circle of the flow cross-section.

[0153] Therefore, the above "N ≤ 5 mm" should be understood to include the following meaning: the diameter of the circumscribed circle of the flow cross-section is less than or equal to 5 mm. Furthermore, a gas delivery element with a longitudinal dimension greater than 0.1 mm facilitates its use in penetrating various shells, such as shrimp shells, which are typically 0.1 mm thick. Because the gas delivery element has a longitudinal dimension greater than 0.1 mm, it has sufficient length to penetrate the shrimp shell. For example, the length of the gas delivery element can be 0.2 mm, 0.3 mm, 0.4 mm, or even longer.

[0154] As an example, N may be 4.5 mm, 4.6 mm, 4.7 mm, 4.8 mm or 4.9 mm.

[0155] According to the method for reducing the shell-to-shell connection force provided in an embodiment of the present application, the step of introducing gas into the internal environment of the shell so that the gas enters between the contents and the shell may include:

[0156] A gas path is configured to introduce gas into the internal environment of the housing, wherein the cross-sectional area of ​​the gas path is greater than or equal to 0.007 mm 2 As an example, the cross section of the gas path may be circular, for example.

[0157] Thus, according to the method for reducing the shell-meat connection force provided by the embodiment of the present application, the cross-sectional area of ​​the gas path is greater than or equal to 0.007mm 2 This is beneficial for ensuring good gas flow and reducing the pressure drop of the gas, thus avoiding the energy loss of the gas and reducing the effect of the flow between the shell and the contents. Specifically, the cross-sectional area can be the area of ​​the flow cross section as above, which can be, for example, 0.008 mm 2 , 0.009mm 2 , 0.010mm 2 or 0.011mm 2 , or even bigger.

[0158] In an embodiment, as an example, the gas path here can be provided by a gas delivery element as described above, which has been briefly mentioned in the above description. In fact, in the example where the gas delivery element is a gas needle, the gas path can be served by a hollow channel inside the gas needle.

[0159] Furthermore, for the example of headless shrimp as the object to be shelled, the length of the gas delivery element may be greater than or equal to 0.1 mm, thereby ensuring that the gas delivery element is long enough to easily penetrate into the shrimp shell.

[0160] According to the method for reducing the shell-to-meat connection force provided in an embodiment of the present application, the step of introducing gas into the internal environment of the shell so that the gas enters between the contents and the shell may include:

[0161] configuring a gas path for introducing gas into the internal environment of the housing;

[0162] The gas pressure P at the end of the gas path facing the object to be shelled is configured so that P satisfies: external environmental pressure ≤ P ≤ external environmental pressure + 0.5 MPa.

[0163] Thus, according to the method for reducing the shell-meat connection force provided in the embodiment of the present application, since the gas needs to quickly fill the shell and diffuse, the gas pressure at the outlet at the end of the gas path is greater than the ambient gas pressure. However, at the same time, it is necessary to avoid excessive gas pressure that may damage the contents such as shrimp meat. Therefore, the gas pressure is configured to be less than or equal to the external ambient pressure + 0.5Mpa.

[0164] The method for reducing shell-meat connection force provided in an embodiment of the present application can reduce the shelling force when used to shell headless shrimp. By introducing a pressurized fluid into the gap between the shrimp shell and the shrimp meat, the shrimp shell expands and the shrimp meat contracts under the pressure of the pressurized fluid, thereby reducing the biofilm connection force, vacuum negative pressure, and shell-meat squeezing force, significantly reducing the shelling force by 20%-50%.

[0165] The method for reducing shell-meat connection force provided in the embodiments of the present application can also improve shrimp meat retention. By introducing pressurized fluid into the gap between the shrimp shell and the shrimp meat, the shrimp shell expands and the shrimp meat contracts under the action of the gas pressure, thereby reducing the biofilm connection force, vacuum negative pressure, and shell-meat squeezing force. This significantly reduces the stress on the small tail limbs during the shelling process, greatly improving the tail limb retention rate.

[0166] According to the second aspect of an embodiment of the present application, a device for reducing the shell-meat connection force is provided. The device for reducing the shell-meat connection force is used to reduce the shell-meat connection force of an object to be shelled. The object to be shelled has a shell and a content contained in the shell. The shell and the content are connected and have the aforementioned shell-meat connection force. The shell has an open part connecting the internal environment of the shell and the external environment where the shell is located. The device for reducing the shell-meat connection force includes a pressure fluid introduction device, which introduces pressure fluid into the internal environment of the shell so that the pressure fluid enters between the content and the shell.

[0167] In an embodiment, the device for reducing the shell-meat connection force has the same beneficial effects as the method for reducing the shell-meat connection force as described above, and no further details are given here. As an example, the device for reducing the shell-meat connection force can be used to perform the method for reducing the shell-meat connection force as described above.

[0168] In the embodiment, the pressure fluid may be pressure gas or pressure liquid, and the following description will take pressure gas as an example.

[0169] According to the device for reducing the shell-to-meat connection force provided in an embodiment of the present application, the pressure fluid introduction device may include a gas delivery element, which can be used to penetrate the shell to introduce gas into the internal environment of the shell. The gas delivery element here can be, for example, a gas delivery element such as a gas needle as described in the shelling method above.

[0170] According to the device for reducing the shell-to-meat connection force provided in an embodiment of the present application, the pressure fluid introduction device may include multiple gas delivery elements. These multiple gas delivery elements may be arranged on the outside of the shell according to the shape of the shell. The beneficial effects here are similar to those of arranging multiple gas introduction positions as described above and will not be repeated here.

[0171] According to the device for reducing the shell-meat connection force provided in an embodiment of the present application, the shell has an extension direction, the open portion is located on one side of the shell in the extension direction, the shell includes a plurality of shell portions connected in sequence in the extension direction, the shell has a connection strength reduced position, and the plurality of shell portions are divided into a plurality of groups by the connection strength reduced position.

[0172] In an embodiment, the means for reducing the shell-to-meat connection strength comprises one or more gas delivery elements for each group. In an embodiment, a location with reduced connection strength represents a location where the connection strength between the shell portions on either side of the location is lower than the connection strength between the shell portions on either side of the location and their respective adjacent shell portions. The beneficial effects here are the same as those described in the shelling method.

[0173] According to the device for reducing the shell-meat connection force provided in an embodiment of the present application, the pressure fluid introduction device includes a gas delivery element, which is used to introduce gas into the internal environment of the shell, wherein the external dimension N of the gas delivery element on the flow cross section satisfies: N≤5mm, and the dimension in the length direction is greater than 0.1mm.

[0174] Furthermore, the cross-sectional area of ​​the gas delivery element is greater than or equal to 0.007 mm 2 .

[0175] In addition, the pressure fluid introduction device includes a gas source for providing gas to the gas delivery element, and the gas delivery element is used to introduce gas into the internal environment of the shell, wherein the gas delivery element has a gas path for introducing gas into the internal environment of the shell; the gas source and the gas delivery element are configured so that the gas pressure P at the end of the gas path on the side facing the object to be shelled satisfies: external environment pressure ≤ P ≤ external environment pressure + 0.5 MPa.

[0176] The beneficial effects and related descriptions of the above-related numerical ranges refer to the corresponding descriptions in the deshelling method, which will not be repeated here.

[0177] Based on the above description, the following takes headless shrimp as an example to further illustrate a specific example of the device for reducing the shell-meat connection force.

[0178] In an embodiment, the clamping device may include a shrimp body supporting platform and a shrimp shell clamping device, and the pressure fluid introduction device may include an air needle, an air source and an air needle power device.

[0179] In an embodiment, the shrimp body support platform can be used as a platform for placing the processed shrimp bodies to provide reliable support for the shrimp bodies.

[0180] In an embodiment, the shrimp shell clamping device is used to clamp the shrimp shell during the shrimp shelling process. The surface of the clamping device facing the shrimp shell can be provided with a protrusion for piercing the shrimp shell during the clamping process. The shrimp shell clamping device can be a continuous or segmented clamping structure.

[0181] In one embodiment, the air needle serves as a terminal conduit for compressed gas, piercing the shrimp shell and ventilating the interior of the shell. A gas source, such as a gas cylinder, provides compressed gas to the system. An air needle power unit, such as a gas cylinder, provides power to move the air needle toward or away from the shrimp.

[0182] According to a third aspect of an embodiment of the present application, a shelling method is provided, which is used to shell an object to be shelled, the object to be shelled having a shell and a content contained in the shell, the shell being connected to the content and having a shell-meat connecting force, the shell having an open portion connecting the internal environment of the shell and the external environment where the shell is located, the shelling method comprising: introducing a pressurized fluid into the internal environment of the shell so that the pressurized fluid enters between the content and the shell to reduce the shell-meat connecting force; and causing the content to move toward the open portion and detach from the shell through the open portion.

[0183] Here, the shelling method can be based on the above method of reducing the shell-meat connection force, and its beneficial effects are the same, which will not be repeated here.

[0184] According to the shelling method provided in an embodiment of the present application, the shelling method may further include: during the execution of the above-mentioned step of causing the contents to move toward the open portion and detach from the shell through the open portion, continuously executing the above-mentioned step of introducing gas into the internal environment of the shell so that the gas enters between the contents and the shell.

[0185] According to the shelling method provided in the embodiment of the present application, Figure 2 As shown, in terms of ventilation timing, this ventilation timing belongs to dynamic ventilation (i.e. ventilation during the shelling process). Since the shell is always expanding and separating from the contents, and the vacuum negative pressure area generated during the shelling process will be quickly replenished with gas and dissipated due to the presence of compressed gas, the shelling resistance will be significantly reduced.

[0186] In other examples, according to the shelling method provided in the embodiments of the present application, such as Figure 1 As shown, the shelling method may further include: after the above-mentioned step of causing the gas to enter between the contents and the shell is performed, sequentially performing the above-mentioned steps of applying force to the contents so that the contents move toward the opening portion and detach from the shell through the opening portion.

[0187] According to the shelling method provided in the embodiment of the present application, in terms of ventilation timing, this ventilation timing belongs to static ventilation (ventilation before shelling, no ventilation during shelling). After the ventilation is completed and during the shelling process, the shell will partially rebound and fit tightly against the contents again, which will cause the shelling resistance to partially recover, but the overall effect is still better than no ventilation.

[0188] Still taking the headless shrimp as an example, Figure 9As shown, the experimental structure shown in the figure is set up, the tail limbs and shrimp meat are clamped separately, and compressed air is introduced at different time periods, and then opposite directions of force are applied between the shrimp meat and the shrimp shell, and the magnitude of the force is recorded. The experimental records are as follows, among which, the tail limb retention situation is: that is, the tail limb part that is successfully retained on the main body of the shrimp meat after shelling, "0" still means that it is not retained, and the total mass is the total mass of the headless shrimp.

[0189]

[0190] Table 10: Comparative examples of three groups without ventilation

[0191]

[0192] Table 11: Three groups of embodiments with static ventilation and gas inlet located at the shell 6

[0193]

[0194] Table 12: Three groups of embodiments with dynamic ventilation and gas inlet located at the shell 6

[0195]

[0196]

[0197] Table 13: Statistics and summary of the data in Tables 10 to 12

[0198] As found in the above experiments, when static ventilation is used, after ventilation is completed and during the shelling process, the shrimp shell will partially rebound and re-attach to the shrimp meat, which will cause the local biological connection force, vacuum negative pressure and shell-meat squeezing force to partially recover, but the overall effect is better than without ventilation, and the shelling force is reduced by about 15%.

[0199] As the above experiments also found, during dynamic ventilation, the shrimp shell continues to expand and separate from the shrimp meat, and the vacuum negative pressure area generated during the shelling process will be quickly replenished with gas and dissipated due to the presence of compressed gas, thereby significantly reducing the local biological connection force, vacuum negative pressure and shell-meat squeezing force, and the shelling force is reduced by about 50%.

[0200] According to the fourth aspect of the embodiment of the present application, a shelling device is provided, which is used to shell an object to be shelled, the object to be shelled has a shell and a content contained in the shell, the shell has an opening portion connecting the internal environment of the shell and the external environment where the shell is located, the shelling device includes a pressure fluid introduction device and a force application device, the pressure fluid introduction device introduces gas into the internal environment of the shell so that the gas enters between the content and the shell, and the force application device is configured to make the content move toward the opening portion and detach from the shell through the opening portion.

[0201] In an embodiment, the shelling device has the same beneficial effects as the above shelling method, which will not be described in detail. As an example, the shelling device can be used to perform the above shelling method.

[0202] According to the shelling device provided in the embodiment of the present application, the shelling device may include the device for reducing the shell-meat connection force as described above, and its force-applying device may also include a shrimp meat clamping device and a shelling power device connected to each other. The shrimp meat clamping device is used to clamp the shrimp meat during the shrimp shelling process, and can be set in the form of a spiral needle. After the spiral needle is inserted into the shrimp meat, it provides clamping for the shrimp meat.

[0203] In an embodiment, the shelling power device is used to make the shrimp shell clamping device and the shrimp meat clamping device generate forces in opposite directions during the shelling process, thereby making the shrimp shell and the shrimp meat generate forces in opposite directions.

[0204] According to the fifth aspect and the sixth aspect of the embodiments of the present application, a method and an apparatus for deshelling shrimp are respectively provided, wherein the object to be deshelled is a headless shrimp, the shell is the above-mentioned covering shell, and the content is shrimp meat.

[0205] According to the seventh aspect of the embodiment of the present application, an electronic device is provided, the electronic device including a processor, the processor being used to store a memory for storing processor-executable instructions, and the processor-executable instructions, when executed by the processor, prompt the processor to execute the above-mentioned method of reducing the shell-meat connection force, or execute the above-mentioned shelling method, or execute the above-mentioned shrimp shelling method.

[0206] The above are only preferred embodiments of the present application and do not limit the scope of protection of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings under the innovative concept of the present application, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.

Claims

1. A method for reducing the shell-meat connection force, characterized in that: The method for reducing the shell-meat connection force is used to reduce the shell-meat connection force of an object to be shelled, wherein the object to be shelled comprises a shell and an object contained in the shell, the shell is connected to the object and has the shell-meat connection force, and the shell has an opening connecting an internal environment of the shell with an external environment where the shell is located. The method for reducing the shell-meat connection force comprises: A pressurized fluid is introduced into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing.

2. The method for reducing the shell-meat connection force according to claim 1, characterized in that: The step of introducing the pressurized fluid into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing comprises: confirming a pressure fluid inlet position on the housing, wherein the pressure fluid inlet position is located outside the opening; The housing is opened at the pressure fluid inlet position to allow pressure fluid to pass into the internal environment of the housing, so that the pressure fluid enters between the container and the housing.

3. The method for reducing the shell-meat connection force according to claim 2, characterized in that: Confirming the pressure fluid entry position on the housing includes: A plurality of pressure fluid inlet positions are identified, wherein the plurality of pressure fluid inlet positions are distributed on the housing according to the shape of the housing.

4. The method for reducing the shell-meat connection force according to claim 3, characterized in that: The shell has an extension direction, the open portion is located on one side of the shell in the extension direction, the shell includes a plurality of shell parts connected in sequence in the extension direction, the shell has a connection strength reduction position, and the plurality of shell parts are divided into a plurality of groups by the connection strength reduction position; The plurality of pressure fluid inlet positions are distributed on the housing according to the shape of the housing, comprising: providing one or more pressure fluid inlet positions for each group; The position where the connection strength is reduced represents a position where the connection strength between the shell parts on both sides of the position is lower than the connection strength between the shell parts on both sides of the position and the respective adjacent shell parts.

5. The method for reducing the shell-meat connection force according to claim 1, characterized in that: The step of introducing the pressurized fluid into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing comprises: Confirm the pressure fluid inlet position on the housing, A pressure fluid delivery element is configured to pass through the pressure fluid inlet position to introduce pressure fluid into the internal environment of the shell, so that the pressure fluid enters between the contents and the shell, wherein the external dimension N of the pressure fluid delivery element on the flow cross section satisfies: N≤5mm, and the dimension in the length direction is greater than 0.1mm.

6. The method for reducing the shell-meat connection force according to claim 5, characterized in that: The step of introducing the pressurized fluid into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing comprises: A pressure fluid path is configured to introduce pressure fluid into the internal environment of the housing, wherein the cross-sectional area of ​​the pressure fluid path is greater than or equal to 0.007 mm 2 .

7. The method for reducing shell-meat connection force according to claim 1, characterized in that: The step of introducing the pressurized fluid into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing comprises: A pressure fluid path is configured to introduce pressure fluid into the internal environment of the housing, wherein the cross-sectional area of ​​the pressure fluid path is greater than or equal to 0.007 mm 2 .

8. The method for reducing shell-meat connection force according to claim 1, characterized in that: The step of introducing the pressurized fluid into the internal environment of the housing so that the pressurized fluid enters between the contents and the housing comprises: configuring a pressure fluid path for communicating a pressure fluid to an internal environment of the housing; The pressure P of the pressure fluid at the end of the pressure fluid path facing the object to be shelled is configured so that P satisfies: the external environmental pressure ≤ P ≤ the external environmental pressure + 0.5 MPa.

9. A device for reducing the shell-meat connection force, characterized in that: The device for reducing the shell-meat connection force is used to reduce the shell-meat connection force of the object to be shelled, the object to be shelled has a shell and a content contained in the shell, the shell is connected to the content and has the shell-meat connection force, the shell has an opening connecting the internal environment of the shell and the external environment where the shell is located, and the device for reducing the shell-meat connection force includes: A pressure fluid introduction device is used to introduce pressure fluid into the internal environment of the housing so that the pressure fluid enters between the container and the housing.

10. The device for reducing the shell-meat connection force according to claim 9, characterized in that: The pressure fluid introduction device includes a pressure fluid delivery element, which is used to penetrate the housing to introduce pressure fluid into the internal environment of the housing.

11. The device for reducing the shell-meat connection force according to claim 9, characterized in that: The pressure fluid inlet device includes a plurality of pressure fluid delivery elements, and the plurality of pressure fluid delivery elements are arranged outside the housing according to the shape of the housing.

12. The device for reducing the shell-meat connection force according to claim 11, characterized in that: The shell has an extension direction, the open portion is located on one side of the shell in the extension direction, the shell includes a plurality of shell parts connected in sequence in the extension direction, the shell has a connection strength reduction position, and the plurality of shell parts are divided into a plurality of groups by the connection strength reduction position; providing one or more pressure fluid delivery elements for each of the groups; The position where the connection strength decreases represents a position where the connection strength between the shell portions on both sides of the position is different from the connection strength between the shell portions on both sides of the position and the respective adjacent shell portions.

13. The device for reducing the shell-meat connection force according to claim 9, characterized in that: The pressure fluid introduction device includes a pressure fluid delivery element, which is used to introduce pressure fluid into the internal environment of the shell, wherein the external dimension N of the pressure fluid delivery element on the flow cross section satisfies: N≤5mm, and the dimension in the length direction is greater than 0.1mm.

14. The device for reducing the shell-meat connection force according to claim 13, characterized in that: The pressure fluid delivery element has a pressure fluid path, the cross-sectional area of ​​the pressure fluid path is greater than or equal to 0.007 mm 2 .

15. The device for reducing the shell-meat connection force according to claim 9, characterized in that: The pressure fluid inlet device comprises a pressure fluid delivery element having a pressure fluid path for introducing pressure fluid into the internal environment of the housing, wherein the cross-sectional area of ​​the pressure fluid path is greater than or equal to 0.007 mm 2 .

16. The device for reducing the shell-meat connection force according to claim 9, characterized in that: The pressure fluid introduction device includes a pressure fluid delivery element and a pressure fluid source for providing pressure fluid to the pressure fluid delivery element, wherein the pressure fluid delivery element is used to introduce pressure fluid into the internal environment of the housing, wherein the pressure fluid delivery element has a pressure fluid path for introducing pressure fluid into the internal environment of the housing; The pressure fluid source and the pressure fluid delivery element are configured so that the pressure fluid pressure P at the end of the pressure fluid path facing the object to be shelled satisfies: the external environmental pressure ≤ P ≤ the external environmental pressure + 0.5 MPa.

17. A shelling method, characterized in that: The shelling method is used to shell an object to be shelled, wherein the object to be shelled comprises a shell and an object contained in the shell, the shell is connected to the object and has a shell-to-meat connection force, and the shell has an opening connecting an internal environment of the shell with an external environment where the shell is located. The shelling method comprises: introducing a pressurized fluid into the internal environment of the shell so that the pressurized fluid enters between the contents and the shell to reduce the shell-to-shell connection force; The contents are urged to move toward the opening portion and escape from the housing through the opening portion.

18. The shelling method according to claim 17, characterized in that The deshelling method further comprises: During the process of causing the content to move toward the opening portion and to separate from the housing through the opening portion, the pressure fluid is continuously introduced into the internal environment of the housing, so that the pressure fluid enters between the content and the housing.

19. The shelling method according to claim 17, wherein The deshelling method further comprises: After the pressure fluid is introduced into the internal environment of the housing so that the pressure fluid enters between the contents and the housing, the contents are urged to move toward the opening portion and detach from the housing through the opening portion.

20. A shelling device, characterized in that: The shelling device is used to shell an object to be shelled. The object to be shelled has a shell and an object contained in the shell. The shell is connected to the object and has a shell-meat connection force. The shell has an opening that connects the internal environment of the shell with the external environment where the shell is located. The shelling device includes: a pressure fluid introduction device for introducing pressure fluid into the internal environment of the housing so that the pressure fluid enters between the contents and the housing; A force applying device is configured to move the contained object toward the opening portion and separate from the housing through the opening portion.

21. The shelling device according to claim 20, characterized in that The shelling device further comprises a clamping device, which carries and clamps the shell; The shell has an extension direction, the open portion is located on one side of the extension direction of the shell, the clamping device is configured to clamp the shell in a direction perpendicular to the extension direction, and the clamping device is also configured to clamp the shell on the other side of the extension direction of the shell.

22. A method for removing shrimp shells, characterized in that: The shrimp shelling method is used for shelling headless shrimp, wherein the headless shrimp comprises a covering shell and shrimp meat located inside the covering shell, wherein the covering shell is connected to the shrimp meat and has a shell-meat connection force, and wherein the covering shell has an opening portion that opens from the head removal position, wherein the opening portion connects the internal environment of the covering shell with the external environment where the covering shell is located. The method comprises: A pressurized fluid is introduced into the internal environment of the coating shell so that the pressurized fluid enters between the shrimp meat and the coating shell.

23. A shrimp shelling device, characterized in that: The shrimp shelling device is used to shell headless shrimp, the headless shrimp including a covering shell and shrimp meat located inside the covering shell, the covering shell having an opening portion that opens from the head removal position, the opening portion communicating the internal environment of the covering shell with the external environment where the covering shell is located, the shrimp shelling device including: a pressure fluid introduction device, the pressure fluid introduction device introducing pressure fluid into the internal environment of the covering shell, so that the pressure fluid enters between the shrimp meat and the covering shell; A force applying device is configured to enable the shrimp meat to move toward the opening portion and to separate from the covering shell through the opening portion.

24. An electronic device, characterized in that: The electronic device comprises: processor; a memory for storing instructions executable by the processor, Wherein, when the processor executable instructions are executed by the processor, the processor is prompted to execute the method for reducing the shell-meat connection force according to any one of claims 1 to 8, or execute the shelling method according to any one of claims 17 to 19, or execute the shrimp shelling method according to claim 22.

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