A membrane package cutting mechanism and a membrane package cutting system

Abstract

The utility model discloses a membrane package cutting mechanism and a membrane package cutting system. In the membrane package cutting mechanism, a cutting knife module includes two cutting knife assemblies arranged opposite to each other in a preset spacing direction, and the two cutting knife assemblies are used to cooperate in cutting the membrane package on the target piece transmitted between the two cutting knife assemblies; a spacing adjustment module is connected to the cutting knife module to adjust the spacing between the two cutting knife assemblies in the preset spacing direction; and a lifting and spacing adjustment module is connected to the cutting knife module to drive the position of the cutting knife module in the lifting direction. According to the size of the membrane package, the lifting and spacing adjustment modules can adjust the height and spacing of the two cutting knife assemblies, so that when the target piece passes between the two cutting knife assemblies, the two opposite sides of the membrane package can be cut at the set height, without manual cutting, which can improve the degree of automation and cutting efficiency, and has good safety and applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of film cutting, in particular to a film package cutting mechanism and a film package cutting system. Background Art

[0002] In the automated production of film-wrapped materials, film cutting is a relatively important step in the entire automated production process. In this step, the film package wrapped around the target part consisting of multiple materials (such as vials) needs to be cut.

[0003] In a traditional film cutting technology, the film is cut manually with a utility knife, and the bottom of the film package is cut with a knife. However, this method has low work efficiency, high labor intensity, and certain safety risks.

[0004] Therefore, how to improve the efficiency and safety of film cutting is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a membrane-wrapped membrane-cutting mechanism with high membrane-cutting efficiency and safety.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A membrane package cutting mechanism comprises a lifting and adjusting module, a spacing adjusting module and a cutting knife module; the cutting knife module comprises two cutting knife assemblies arranged opposite to each other in a preset spacing direction, and the two cutting knife assemblies are used to cooperate in cutting the membrane package on a target piece transmitted between the two; the spacing adjusting module is connected to the cutting knife module to adjust the spacing between the two cutting knife assemblies in the cutting knife module in the preset spacing direction; the lifting and adjusting module is connected to the cutting knife module to drive the position of the cutting knife module in the lifting direction.

[0008] Preferably, the cutting knife assembly includes a tool body; the tool body includes a film hooking knife holder and a film cutting blade connected to the film hooking knife holder, the film hooking knife holder has a pointed structure at the tail end in the forward direction of the target part, and at least part of the structure of the film cutting blade is a film cutting part; in the preset spacing direction, the film cutting part is located on a first side of the film hooking knife holder, and the second side of the film hooking knife holder is the conveying side of the target part.

[0009] Preferably, a knife holder through hole is provided through the film hooking knife holder and is located at the front side of the pointed structure in the advancing direction; the film cutting blade is inserted into the knife holder through hole, and a part of it extends from the first side to serve as the film cutting part, and another part extends from the second side out of the knife holder through hole.

[0010] Preferably, the tool body further comprises a heating element connected to the film cutting blade.

[0011] Preferably, the tool body also includes a guide tool holder fixed to the film hooking tool holder, the guide tool holder having a guide slope, the guide slope and the film hooking tool holder are arranged in sequence along the forward direction, the guide slope is inclined relative to the preset spacing direction, and gradually approaches the conveying side of the target part in the forward direction.

[0012] Preferably, the cutting knife assembly further comprises a buffer elastic member connected to the tool body, and the buffer elastic member is used to press the tool body toward the target member.

[0013] Preferably, the two cutting knife assemblies in the cutting knife module are respectively a fixed edge cutting knife assembly and a moving edge cutting knife assembly, and the spacing adjustment module is used for driving the moving edge cutting knife assembly to approach or move away from the fixed edge cutting knife assembly in the preset spacing direction.

[0014] Preferably, the spacing adjustment module includes a main support, a lifting support and a linear module that provides driving force in the preset spacing direction; the lifting adjustment module is arranged on the main support, the lifting support is connected to the lifting adjustment module and is located below the lifting adjustment module, the linear module is connected to the bottom surface of the lifting support, the moving edge cutting knife assembly is connected to the linear module, and the fixed edge cutting knife assembly is directly connected to the lifting support.

[0015] Preferably, it also includes two lifting guide mechanisms, which are respectively located on both sides of the lifting adjustment module in the direction of the preset spacing, and are connected between the main bracket and the lifting bracket to guide the lifting bracket in the lifting direction.

[0016] A membrane wrapping and cutting system comprises two linear conveying mechanisms for conveying target parts and a steering mechanism connected between the two linear conveying mechanisms, wherein the target part on one of the linear conveying mechanisms enters the steering mechanism for turning and can then enter the other linear conveying mechanism for further conveying; each of the linear conveying mechanisms is respectively provided with the above-mentioned membrane wrapping and cutting mechanism, and the two cutting knife assemblies in the cutting knife module are respectively located on both sides of the corresponding linear conveying mechanism.

[0017] The film package cutting mechanism provided by the utility model comprises a lifting adjustment module, a spacing adjustment module and a cutting knife module; the cutting knife module comprises two cutting knife assemblies which are arranged relatively in a preset spacing direction, and the two cutting knife assemblies are used to cooperate in cutting the film package on the target piece transmitted between the two; the spacing adjustment module is connected to the cutting knife module to adjust the spacing between the two cutting knife assemblies in the cutting knife module in the preset spacing direction; the lifting adjustment module is connected to the cutting knife module to drive the position of the cutting knife module in the lifting direction.

[0018] According to the size of the membrane package, the lifting adjustment module can adjust the height of the cutting knife module, and the spacing adjustment module can adjust the spacing between the two cutting knife assemblies, so that when the target part passes between the two cutting knife assemblies, the set heights of the two opposite sides of the membrane package outside the target part (such as the bottleneck) can be cut by the two cutting knife assemblies. No manual cutting is required, which can improve the degree of automation and cutting efficiency, and has better safety. In addition, since the membrane cutting mechanism can adapt to the size of the membrane package and is compatible with membrane packages of different heights, lengths or widths, it has better applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 This is an axial side view of a specific embodiment 1 of the membrane wrapping and cutting mechanism provided by the utility model;

[0021] Figure 2 This is a front view of a specific embodiment 1 of the membrane wrapping and cutting mechanism provided by the utility model;

[0022] Figure 3 It is a side view of a specific embodiment 1 of the membrane wrapping and cutting mechanism provided by the utility model;

[0023] Figure 4 It is a top view of a specific embodiment 1 of the membrane wrapping and cutting membrane mechanism provided by the utility model;

[0024] Figure 5 It is a schematic diagram of film cutting of a specific embodiment 1 of the film package film cutting mechanism provided by the utility model;

[0025] Figure 6 This is a structural diagram of a cutter assembly of a specific embodiment 1 of a membrane package cutting mechanism provided by the utility model;

[0026] Figure 7 A schematic diagram of the film cutting principle of the first specific embodiment of the film package film cutting mechanism provided by the utility model;

[0027] Figure 8 The present invention provides a simplified structural diagram of a membrane wrapping and cutting membrane system according to a specific embodiment of the present invention.

[0028] Reference numerals:

[0029] Lifting guide mechanism 1;

[0030] Lifting and adjusting module 2;

[0031] Spacing adjustment module 3, main support 31, lifting support 32, linear module 33;

[0032] Cutting knife module 4, cutting knife assembly 41, tool body 42, film hooking knife holder 421, pointed structure 4211, knife holder through hole 4212, film cutting blade 422, film cutting part 4221, guide knife holder 423, guide inclined surface 4231, thermocouple 43, buffer elastic member 44, fixed edge cutting knife assembly 45, moving edge cutting knife assembly 46, linear bearing 47, heating rod 48;

[0033] Target part 5, membrane package 51;

[0034] Linear transmission mechanism 6, steering mechanism 61;

[0035] Preset spacing direction X, forward direction Y, lifting direction Z. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] The core of the utility model is to provide a membrane package and membrane cutting mechanism, which has high membrane cutting efficiency and safety.

[0038] For a specific embodiment of the membrane wrapping and cutting mechanism provided by the present invention, please refer to Figures 1 to 8 , including a lifting adjustment module 2, a spacing adjustment module 3 and a cutting knife module 4.

[0039] The cutter module 4 includes two cutter assemblies 41 arranged opposite to each other in a preset spacing direction X. The two cutter assemblies 41 are used to cooperate in cutting the film package 51 on the target piece 5 transferred between the two.

[0040] The spacing adjustment module 3 is connected to the cutting knife module 4 to adjust the spacing between the two cutting knife assemblies 41 in the cutting knife module 4 in the preset spacing direction X.

[0041] The lifting and adjusting module 2 is connected to the cutting knife module 4 to drive the position of the cutting knife module 4 in the lifting direction Z. The lifting and adjusting module 2 is specifically an electric cylinder, and may also be a hydraulic cylinder or other lifting driving mechanisms.

[0042] The target part 5 includes a film package 51 and a plurality of materials wrapped by the film package 51, such as a bottle body, which can be a vial or other structures. Figure 5 As shown, in a typical target part 5 composed of a plurality of vials wrapped by a film package 51, each vial is arranged in a matrix, and the outer film package 51 is close to a rectangular body, wherein the preset spacing direction X corresponds to the length or width direction of the rectangular body. In addition, in the present application, the lifting direction Z, the preset spacing direction X, and the forward direction Y are divided into three different straight lines located in space, and optionally, the three straight lines are perpendicular to each other, and at the same time, the lifting direction Z and the preset spacing direction X correspond to the positive and negative directions respectively, and the target part 5 usually moves in a single direction, and the forward direction Y of the target part 5 corresponds to one direction, specifically moving forward along the forward direction Y from the back.

[0043] In this embodiment, according to the size of the membrane package 51, the lifting and adjusting module 2 can adjust the height of the cutting knife module 4, and the spacing adjusting module 3 can adjust the spacing between the two cutting knife assemblies 41, so that when the target part 5 passes between the two cutting knife assemblies 41, the set heights of the two opposite sides of the membrane package 51 outside the target part 5 (for example, the bottleneck) can be cut by the two cutting knife assemblies 41, without the need for manual cutting, which can improve the degree of automation and cutting efficiency, and has better safety. In addition, since the membrane cutting mechanism can adapt to the size of the membrane package 51, it is compatible with membrane packages 51 of different heights, lengths or widths, and has better applicability.

[0044] Furthermore, if Figure 6 As shown, the cutting knife assembly 41 includes a cutting knife body 42 , which mainly realizes the film cutting function, and the cutting knife body 42 is connected to the spacing adjustment module 3 .

[0045] The tool body 42 includes a film hooking tool holder 421 and a film cutting blade 422 connected to the film hooking tool holder 421. The film hooking tool holder 421 is arranged in the advancing direction Y (corresponding to Figure 7 from right to left in the direction) on the tail end (corresponding to Figure 7 The right end of the film cutting blade 422 has a pointed structure 4211. The film cutting blade 422 is specifically a stainless steel blade, and at least part of the structure of the film cutting blade 422 is a film cutting portion 4221.

[0046] In the preset spacing direction X, the film cutting part 4221 is located on the first side of the film hooking knife holder 421, and the second side of the film hooking knife holder 421 is the conveying side of the target part 5, and the target part 5 is used to pass through the second side of the pointed structure 4211 along the forward direction Y. It should be noted that for the film hooking knife holder 421, the first side and the second side need to be determined according to the positional relationship between the film hooking knife holder 421 and the target part 5. Specifically, the target part 5 is conveyed between two film hooking knife holders 421. Then, in the preset spacing direction X, the side of each film hooking knife holder 421 close to the other film hooking knife holder 421 is the second side, and the remaining side is the first side. Figure 7 From the perspective of Figure 7 In the orientation, the up and down directions shown correspond to the preset spacing direction X, the left direction is the forward direction Y of the target part 5, the upper film hooking tool holder 421 in the viewing angle of the figure has the first side on its upper side and the second side on its lower side, and the lower film hooking tool holder 421 in the viewing angle of the figure has the second side on its upper side and the first side on its lower side.

[0047] like Figure 7 As shown, during the process of the target part 5 moving along the forward direction Y, that is, during the process of moving from right to left in the figure, when the film package 51 moves to the film hooking knife holder 421, it first contacts the pointed structure 4211 on the film hooking knife holder 421, and the pointed structure 4211 of the film hooking knife holder 421 breaks the film package 51 and enters the interior of the package, and the broken film package 51 enters between the film cutting portion 4221 and the pointed structure 4211, and then is cut by the film cutting portion 4221 of the film cutting blade 422 during the movement of the film package 51.

[0048] In this embodiment, when cutting the film, the film package 51 is first hooked up by the pointed structure 4211, and then the hooked film package 51 is cut open by the film cutting blade 422, so that the film cutting blade 422 can cut the film package 51, reduce the damage to the material itself in the target part 5, and avoid scratching the material. Of course, in other embodiments, the film hooking knife holder 421 may not be provided, and the film cutting is performed directly by the film cutting blade 422.

[0049] To facilitate the assembly of the film cutting blade 422 on the film hooking knife holder 421, as shown in FIG. Figure 6 As shown, the film hooking knife holder 421 is provided with a knife holder through hole 4212, specifically, it is penetrated in the preset spacing direction X, and is located in front of the pointed structure 4211 in the advancing direction Y, that is, the target part 5 first passes through the pointed structure 4211, and then passes through the knife holder through hole 4212. The film cutting blade 422 is inserted into the knife holder through hole 4212, and a part of it extends from the first side of the film hooking knife holder 421 to serve as the film cutting part 4221, and another part extends from the second side of the film hooking knife holder 421 to the knife holder through hole 4212.

[0050] Thus, the film cutting blade 422 is easy to install, and because the film hooking knife holder 421 and the film cutting blade 422 are cross-assembled, the distance between the film cutting portion 4221 and the film hooking knife holder 421 can be easily adjusted, and specifically, it can be formed as follows: Figure 7 The sharp angle at the middle A ensures that the film cutting part 4221 can cut the film package 51 hooked by the pointed structure 4211 during the forward movement, and the part of the film cutting blade 422 extending from the second side of the film hooking knife holder 421 through the knife holder through hole 4212 can re-cut the film package 51 that has not been completely cut by the film cutting part 4221, thereby improving the cutting effect.

[0051] Among them, on the second side of the film hooking knife holder 421, the top position of the film cutting blade 422 extending from the film hooking knife holder 421 along the preset spacing direction X through the knife holder through hole 4212 may not protrude from the film hooking knife holder 421, so as to reduce the damage of the film cutting blade 422 to the material. In addition, the film hooking knife holder 421 is inclined relative to the preset spacing direction X, and can gradually deviate from the target part 5 along the forward direction Y, so as to reduce the interference and obstruction of the film hooking knife holder 421 on the movement of the target part 5.

[0052] To extend the service life of the film cutting blade 422, as Figure 6 As shown, the tool body 42 also includes a heating element connected to the film cutting blade 422 to heat the film cutting blade 422. The heating element may specifically include a thermocouple 43 and a heating rod 48. When cutting the film, in addition to relying on the cutting ability of the film cutting blade 422 itself, the film package 51 can also be heated by the film cutting blade 422 to reduce the cutting resistance and reduce the damage to the film cutting blade 422.

[0053] In order to accurately position the target part 5 between the two tool bodies 42 of the cutting tool module 4, as shown in FIG. Figure 6 As shown, the tool body 42 further includes a guide tool holder 423 fixed to the film hooking tool holder 421 , the guide tool holder 423 has a guide slope 4231 , and the guide slope 4231 and the film hooking tool holder 421 are arranged in sequence along the advancing direction Y.

[0054] The guide slope 4231 is inclined relative to the preset spacing direction X and gradually approaches the conveying side of the target part 5 in the forward direction Y. Figure 5 As shown, the guide tool holders 423 of the two opposing tool bodies 42 form a tapered guide structure, and the small-diameter end is the front end in the advancing direction Y, so as to accurately position the target part 5 between the pointed structures 4211 of the two film hooking tool holders 421. Specifically, in the preset spacing direction X, the pointed structure 4211 in the tool body 42 is closer to the conveying position of the target part 5 than the guiding slope 4231.

[0055] To ensure the cutting ability of the cutter body 42 on the membrane package 51, Figure 6As shown, the cutting knife assembly 41 also includes a buffer elastic member 44 connected to the tool body 42, which can be a buffer spring. The buffer elastic member 44 is used to press the tool body 42 toward the target part 5. Optionally, the tool body 42 is connected to the spacing adjustment module 3 through a linear bearing 47, the linear sliding direction of the linear bearing 47 is in the preset spacing direction X, and the buffer elastic member 44 is connected between the spacing adjustment module 3 and the tool body 42.

[0056] For the membrane package 51, although its general appearance is as follows Figure 5 The rectangular body shown in the figure, however, each side surface may not be a plane, but an irregular surface, for example, uneven in the preset spacing direction X. By adding the buffer elastic member 44, a certain movement space can be provided for the tool body 42 in the preset spacing direction X, ensuring that the whole edge of the film package 51 can be completely cut, and the whole edge continuous and uninterrupted film cutting can be achieved. Of course, in other embodiments, the tool body 42 can also be directly connected to the spacing adjustment module 3.

[0057] Furthermore, in the film cutting module, Figure 5 As shown, the two cutting knife assemblies 41 in the cutting knife module 4 are respectively a fixed edge cutting knife assembly 45 and a moving edge cutting knife assembly 46. The fixed edge cutting knife assembly 45 is stationary in the preset spacing direction X, and the spacing adjustment module 3 is used to drive the moving edge cutting knife assembly 46 to approach or move away from the fixed edge cutting knife assembly 45 in the preset spacing direction X. Then, the position of the moving edge cutting knife assembly 46 can be adjusted based on one fixed edge cutting knife assembly 45, which can improve the accuracy of the spacing adjustment between the two. Of course, in other embodiments, the two cutting knife assemblies 41 can both be movable cutting knife assemblies 41, and the spacing adjustment efficiency can be improved by synchronously approaching or moving away.

[0058] Further, in the spacing adjustment module 3, as Figure 1 As shown, the spacing adjustment module 3 includes a main support 31, a lifting support 32 and a linear module 33 that provides a driving force in a preset spacing direction X.

[0059] The lifting and lowering adjustment module 2 is arranged on the main bracket 31, the lifting bracket 32 ​​is connected to the bottom of the lifting and lowering adjustment module 2, the linear module 33 is connected to the bottom surface of the lifting bracket 32, the moving edge cutting knife assembly 46 is connected to the linear module 33, and the fixed edge cutting knife assembly 45 is directly connected to the lifting bracket 32, so that the stability of the spacing adjustment is higher.

[0060] To improve the stability of lifting movement, Figure 1 As shown, the membrane wrapping and cutting mechanism also includes two lifting guide mechanisms 1. In the preset spacing direction X, the two lifting guide mechanisms 1 are respectively located on both sides of the lifting adjustment module 2. The lifting guide mechanisms 1 are connected between the main bracket 31 and the lifting bracket 32 ​​to guide the lifting bracket 32 ​​in the lifting direction Z.

[0061] In the film package cutting mechanism of the present embodiment, the lifting and adjusting module 2 can make the cutting knife assembly 41 move up and down, and is compatible with target parts 5 of different heights. The spacing adjusting module 3 can make the cutting knife assembly 41 move left and right, and is compatible with target parts 5 of different lengths or widths. Therefore, this film cutting method is compatible with film packages 51 of various sizes, thereby improving production efficiency. During the forward movement of the target part 5, the film package 51 is guided by the guide knife holder 423 to contact the film hooking knife holder 421, and the pointed structure 4211 of the film hooking knife holder 421 first enters the interior of the film package 51, and the film cutting portion 4221 of the film cutting blade 422 cuts the film package 51, thereby realizing automated film cutting processing and reducing labor costs.

[0062] In addition to the above-mentioned membrane wrapping and cutting membrane mechanism, the utility model also provides a membrane wrapping and cutting membrane system, which includes a membrane wrapping and cutting membrane mechanism. The membrane wrapping and cutting membrane mechanism can specifically be the membrane wrapping and cutting membrane mechanism provided in any of the above embodiments, and the beneficial effects can be referred to the above embodiments accordingly.

[0063] The membrane wrapping and cutting system includes two linear conveying mechanisms 6 for conveying target parts 5 and a steering mechanism 61 connected between the two linear conveying mechanisms 6. After the target part 5 on one linear conveying mechanism 6 enters the steering mechanism 61 for turning, it can enter the other linear conveying mechanism 6 for further conveyance.

[0064] Each linear transmission mechanism 6 is respectively equipped with a corresponding film package cutting mechanism, and the two cutting knife assemblies 41 in the cutting knife module 4 are respectively located on both sides of the corresponding linear transmission mechanism 6. Figure 5 As shown, the membrane package 51 of the target part 5 has four surfaces that need to be cut. The figure shows a state in which a cutting knife module 4 cuts two opposite surfaces. By adding a steering mechanism 61, it can be turned 90°, so that the membrane package cutting mechanism equipped with one of the linear conveying mechanisms 6 cuts the two opposite surfaces of the membrane package 51, and then turns through the steering mechanism 61 to continue to be conveyed to the other linear conveying mechanism 6 and the membrane package cutting mechanism equipped with the linear conveying mechanism 6 cuts the other two opposite surfaces of the membrane package.

[0065] It should be noted that when an element is referred to as "fixed" to another element, it may be directly on the other element or there may be an element in the middle. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an element in the middle at the same time. In addition, in the description of the present utility model, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more.

[0066] The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0068] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0069] The above is a detailed introduction to the membrane-wrapped membrane cutting mechanism and membrane-wrapped membrane cutting system provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A membrane wrapping and cutting mechanism, characterized in that: It comprises a lifting and lowering adjustment module (2), a spacing adjustment module (3) and a cutting knife module (4); The cutting knife module (4) comprises two cutting knife assemblies (41) arranged opposite to each other in a preset spacing direction (X), and the two cutting knife assemblies (41) are used to cooperate in cutting a film package (51) on a target piece (5) transmitted between the two. The spacing adjustment module (3) is connected to the cutting knife module (4) so ​​as to adjust the spacing between the two cutting knife assemblies (41) in the cutting knife module (4) in the preset spacing direction (X); The lifting and lowering adjustment module (2) is connected to the cutting knife module (4) so ​​as to drive the position of the cutting knife module (4) in the lifting direction (Z).

2. The membrane wrapping and cutting mechanism according to claim 1, characterized in that: The cutting knife assembly (41) comprises a knife body (42); the knife body (42) comprises a film hooking knife holder (421) and a film cutting blade (422) connected to the film hooking knife holder (421); the tail end of the film hooking knife holder (421) in the advancing direction (Y) of the target part (5) has a pointed structure (4211); at least part of the structure of the film cutting blade (422) is a film cutting portion (4221); in the preset spacing direction (X), the film cutting portion (4221) is located on a first side of the film hooking knife holder (421), and the second side of the film hooking knife holder (421) is a conveying side of the target part (5).

3. The membrane wrapping and cutting mechanism according to claim 2, characterized in that: The film hooking knife holder (421) is provided with a knife holder through hole (4212) penetrating therethrough and located at the front side of the pointed structure (4211) in the forward direction (Y); the film cutting blade (422) is inserted into the knife holder through hole (4212), and a part of it extends out of the first side to serve as the film cutting part (4221), and another part extends out of the knife holder through hole (4212) from the second side.

4. The membrane wrapping and cutting mechanism according to claim 2, characterized in that: The tool body (42) also includes a heating element connected to the film cutting blade (422).

5. The membrane wrapping and cutting mechanism according to claim 2, characterized in that: The tool body (42) further comprises a guide tool holder (423) fixed to the film hooking tool holder (421), wherein the guide tool holder (423) comprises a guide bevel (4231), wherein the guide bevel (4231) and the film hooking tool holder (421) are arranged in sequence along the advancing direction (Y), and wherein the guide bevel (4231) is inclined relative to the preset spacing direction (X) and gradually approaches the conveying side of the target part (5) in the advancing direction (Y).

6. The membrane wrapping and cutting mechanism according to claim 2, characterized in that: The cutting knife assembly (41) further comprises a buffer elastic member (44) connected to the knife body (42), wherein the buffer elastic member (44) is used to press the knife body (42) toward the target member (5).

7. The membrane wrapping and cutting mechanism according to any one of claims 1 to 6, characterized in that: The two cutting knife assemblies (41) in the cutting knife module (4) are respectively a fixed edge cutting knife assembly (45) and a moving edge cutting knife assembly (46), and the spacing adjustment module (3) is used to drive the moving edge cutting knife assembly (46) to approach or move away from the fixed edge cutting knife assembly (45) in the preset spacing direction (X).

8. The membrane wrapping and cutting mechanism according to claim 7, characterized in that: The spacing adjustment module (3) comprises a main support (31), a lifting support (32) and a linear module (33) providing a driving force in the preset spacing direction (X); the lifting adjustment module (2) is arranged on the main support (31), the lifting support (32) is connected to the lifting adjustment module (2) and is located below the lifting adjustment module (2), the linear module (33) is connected to the bottom surface of the lifting support (32), the moving edge cutting knife assembly (46) is connected to the linear module (33), and the fixed edge cutting knife assembly (45) is directly connected to the lifting support (32).

9. The membrane wrapping and cutting mechanism according to claim 8, characterized in that: It also includes two lifting guide mechanisms (1), which are respectively located on both sides of the lifting adjustment module (2) in the preset spacing direction (X), and the lifting guide mechanisms (1) are connected between the main support (31) and the lifting support (32) to guide the lifting support (32) in the lifting direction (Z).

10. A membrane wrapping and cutting system, characterized in that: It comprises two linear conveying mechanisms (6) for conveying target parts (5) and a steering mechanism (61) connected between the two linear conveying mechanisms (6), wherein the target part (5) on one of the linear conveying mechanisms (6) enters the steering mechanism (61) for turning, and then enters the other linear conveying mechanism (6) for further conveying; each of the linear conveying mechanisms (6) is respectively equipped with a membrane package cutting mechanism as described in any one of claims 1 to 9, and the two cutting knife assemblies (41) in the cutting knife module (4) are respectively located on both sides of the corresponding linear conveying mechanism (6).

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