Production equipment of high-vapor-permeable packaging film material

Abstract

This invention relates to the field of packaging film technology, specifically to a production equipment for a high-permeability packaging film material. It includes: a workbench for forming a supporting structure; a sealing assembly fixedly installed on a processing station of the workbench, through which an upper and lower film overlap; a blowing assembly installed on the workbench at the opening of a cylindrical structure, for meteringly blowing air into the cylindrical structure to inflate it; a rolling assembly installed on the processing station of the workbench; and a stroke sensor for sensing the current flow stroke L of the packaging film. i A timer is used to record the current time. A controller, based on the processing speed, width, and material hardness, controls the blowing assembly to blow gas into the cylindrical structure at a flow rate of Q. The controller also controls the rolling assembly to press and seal the cylindrical structure. This invention can control the cushioning capacity of the packaging film material by quantitatively blowing in air, thus making it suitable for packaging various items.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging film, in particular to a production equipment of high-vapor-transmittable packaging film material. BACKGROUND

[0002] The packaging film mainly refers to a film used for article packaging, usually including polyethylene film, biaxially oriented polyester, BOPP film and CPP film, etc., mainly used for packaging of food, medicine and textile. The packaging film is mainly formed by mixing and extruding several different grades of polyethylene resin, has the properties of anti-puncture and super strength high performance, and is used for winding and packaging goods stacked on a pallet, so that the packaged goods are more stable, neat and have super waterproof effect, and is widely used in foreign trade export, papermaking, hardware, plastic chemical industry, building material, food, medicine and other industries.

[0003] Due to the rise of online shopping, the express and logistics industry develops rapidly. For goods that need to be transported, packaging film is needed for packaging, which has a certain preservation or buffering effect, so as to protect the goods from shock damage during transportation. Different goods have different packaging requirements, and the demand for packaging film is also different.

[0004] The existing packaging film buffer bag has a basic quantitative inflation capacity, which cannot adapt to different packaging goods, and different packaging requires different buffering capacity. SUMMARY

[0005] To solve the above technical problems, the present application provides a production equipment of high-vapor-transmittable packaging film material, which comprises a workbench,

[0006] The workbench is used to form a support body, and the workbench is sequentially provided with an feeding station, a processing station and a discharging station;

[0007] The edge sealing assembly is fixedly installed on the processing station of the workbench, and the upper film and the lower film overlap each other and pass through the edge sealing assembly, the edge sealing assembly is used for pressing and sealing the edge of the upper film and the lower film, so as to form a cylindrical structure of the upper film and the lower film; when the upper film and the lower film are in a separated structure, the edge sealing assembly can be double-sided pressing and sealing, and when the upper film and the lower film are in a folded structure, the edge sealing assembly is single-sided pressing and sealing;

[0008] The blowing assembly is installed on the workbench and located at the opening position of the cylindrical structure, and is used for quantitatively blowing air into the cylindrical structure to make the cylindrical structure inflated;

[0009] The roller pressing assembly is installed on the processing station of the workbench, and is used for middle pressing and sealing and punching of the cylindrical structure to form a packaging film;

[0010] The stroke sensor can be installed on the workbench or the roller pressing assembly, and is used for sensing the current flow stroke L of the packaging film. i ;

[0011] a timer for recording a current time point t i , wherein i is the time point of obtaining data in order;

[0012] The controller is electrically connected with the stroke sensor, the timer, the rolling assembly, the edge sealing assembly and the blowing assembly. First, the upper film and the lower film are arranged above and below the blowing assembly and overlap each other, and then pass through the edge sealing assembly and the rolling assembly in sequence. The controller obtains the width W of the current packaging film material. The controller controls the edge sealing assembly to perform edge sealing on the upper film and the lower film to form a cylindrical structure. The controller controls the blowing assembly to blow gas into the cylindrical structure, and the flow rate of the blown gas is Q. The controller controls the rolling assembly to perform pressure sealing on the cylindrical structure.

[0013] Preferably, a cutting assembly is installed on the discharging station on the workbench, and the cutting assembly is used for cutting the packaging film material.

[0014] Preferably, the cutting assembly comprises a third mounting frame, a first lifting driving element and a cutting blade. The third mounting frame is fixedly installed on the workbench. The first lifting driving element is fixedly installed on the third mounting frame. The output shaft of the first lifting driving element is fixedly installed with the cutting blade. The cutting blade is transversely arranged. The cutting assembly is connected with the controller. The controller judges whether the current flow stroke L of the packaging film is equal to a preset value i , and if yes, the controller controls the edge sealing assembly to cut, and if no, the controller does not cut. , wherein T is the cutting preparation time of the cutting assembly. If yes, the controller controls the edge sealing assembly to cut. If no, the controller does not cut.

[0015] Preferably, the support legs are fixedly connected to the four corners of the workbench. The support legs are fixedly provided with a base plate with a mounting hole at the bottom. The support legs are fixed to the ground of the production line by bolts passing through the mounting holes.

[0016] Preferably, the upper film roller and the lower film roller are rotatably arranged on the feeding station of the workbench. The upper film is wound on the upper film roller. The lower film is wound on the lower film roller. The upper film roller and the lower film roller are rotatably connected at the feeding station of the workbench. The upper film roller and the lower film roller are arranged in an upper and lower distribution. The upper film roller is above, and the lower film roller is below. The upper film roller and the lower film roller are detachably installed on the feeding station.

[0017] Preferably, the edge sealing assembly comprises a first mounting frame, a third lifting driving element, a second lifting frame and an edge sealing element. The first mounting frame is installed on the workbench. The upper film and the lower film overlap each other and pass below the first mounting frame. The second lifting frame is liftably installed on the first mounting frame. The third lifting driving element is fixedly installed on the first mounting frame. The output end of the third lifting driving element is fixedly connected with the second lifting frame. The edge sealing element is installed on the second lifting frame. The edge sealing element is used for pressure sealing the overlapping edge of the upper film and the lower film.

[0018] Preferably, the roller pressing assembly comprises a second mounting frame, a second lifting driving element, a first lifting frame and a sealing roller, the second mounting frame is installed on the working position of the workbench, the cylindrical structure passes below the second mounting frame, the first lifting frame is installed on the second mounting frame in a lifting manner, the second mounting frame is fixedly installed with the second lifting driving element, the output end of the second lifting driving element is fixedly connected with the first lifting frame, the sealing roller is rotatably installed on the first lifting frame, when the cylindrical structure passes below the sealing roller, the second lifting driving element drives the sealing roller to descend and press the middle part of the cylindrical structure, and the inflated air forms the buffer bag of the packaging film under the action of the sealing roller.

[0019] Preferably, the sealing roller comprises a roller body, a heat sealing strip and a cutting knife group, the roller body is a barrel structure, the heat sealing strip is fixedly arranged on the side wall of the roller body in a circumferential array, and the cutting knife group is arranged on the heat sealing strip in a linear array.

[0020] Preferably, the heat sealing strip is composed of an elastic layer, an electric heating strip and a high-temperature-resistant cloth, and the electric heating strip and the high-temperature-resistant cloth are fixedly arranged in sequence.

[0021] Preferably, the cutting knife group can comprise a fixing ring, a communication pipe, a material injection pipe, a reset spring and a blade, the fixing ring is embedded in the through hole of the side wall of the roller body, the roller body is a hollow structure, the inside of the hollow structure is used for containing hygroscopic material, the communication pipe is fixedly installed in the inside of the fixing ring and communicates with the hollow structure, the blade can be a star-ray structure, preferably a cross structure, the blade is fixedly arranged at the end of the fixing ring, the material injection pipe is slidingly installed in the inside of the communication pipe and protrudes from the heat sealing strip at one end and is located at the center of the star of the blade, the reset spring is connected to the material injection pipe, the reset spring makes the material injection pipe close to the blade, the inside of the communication pipe is provided with a one-way valve, and the one-way valve limits the flow of fluid in the inside of the communication pipe to the inside of the material injection pipe; when the sealing roller rolls to perform sealing, the heat sealing strip is pressed to make the blade protrude from the heat sealing strip, the packaging film is cut, a star-shaped cut is formed, and the material injection pipe is compressed to make the internal hygroscopic material fill into the center position of the star-shaped cut.

[0022] Preferably, the gas flow rate is 0.1-0.5 m / s. Wherein, alpha is an adjustment factor, beta is a buffer coefficient of the buffer bag, and H is the hardness of the packaging film material.

[0023] The present application has the following technical effects and advantages: the present application firstly forms a cylindrical structure through edge sealing, then quantitatively inflates air into the cylindrical structure, and evaluates the packaging film material, width and flow rate, so that the buffer capacity of the packaging film material can be quantitatively controlled, and the packaging of various objects can be achieved. Through high steam permeability, the present application is suitable for the packaging of refrigerated objects and facilitates timely drainage and steam exhaust. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1A high steam permeable packaging film material production equipment is provided.

[0025] Figure 2 A high steam permeable packaging film material production equipment is provided.

[0026] Figure 3 For Figure 2 A high steam permeable packaging film material production equipment is provided.

[0027] Figure 4 A high steam permeable packaging film material production equipment is provided.

[0028] Figure 5 A high steam permeable packaging film material production equipment is provided.

[0029] Figure 6 For Figure 5 A high steam permeable packaging film material production equipment is provided.

[0030] Figure 7 For Figure 6 A high steam permeable packaging film material production equipment is provided.

[0031] Figure 8 A high steam permeable packaging film material production equipment is provided.

[0032] Figure 9 A high steam permeable packaging film material production equipment is provided.

[0033] The drawing mark is explained: workbench 1, cutting assembly 2, roll pressing assembly 3, edge sealing assembly 4, blowing assembly 5, upper film 6, lower film 7, cutting blade 8, first lifting drive 9, first lifting frame 10, second lifting drive 11, pressure sealing roller 12, third lifting drive 13, second lifting frame 14, edge sealing piece 15, supporting piece 16, roller body 17, heat sealing edge strip 18, cutting knife group 19, communication pipe 20, injection pipe 21, reset spring 22, blade 23, one-way valve 24. Specific implementation

[0034] The application is further described in detail below with the accompanying drawings and specific embodiments. The embodiments of the application are given for illustrative and descriptive purposes only and are not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments are chosen and described in order to best explain the principles of the application and its practical application to thereby enable others skilled in the art to best utilize the application in various embodiments and with various modifications as are suited to the particular use contemplated. Embodiments

[0035] Reference Figures 1-3 In this embodiment, a production equipment for high-vapor-permeable packaging film material is proposed, comprising a workbench 1,

[0036] The workbench 1 is used to form a support body. The workbench 1 can be a rectangular plate structure. The surface of the workbench 1 is smooth to avoid scratching during contact with the packaging film and its raw materials. The workbench 1 can also be a fixed combination structure of a fixed frame structure and a smooth plate on the top surface, which is not described in detail here. The four corners of the workbench 1 can be fixedly connected with support legs. The bottom of the support leg can be fixedly provided with a base plate with a mounting hole. The support leg can be fixed to the ground of the production line by a bolt passing through the mounting hole. Of course, it can also be directly welded, which is not described in detail here. The workbench 1 can be in the form of an assembly line. The direction of the packaging film flow is defined as the longitudinal direction, and the vertical direction is the transverse direction. The longitudinal direction is sequentially provided with a feeding station, a processing station and a discharging station.

[0037] The upper film roller and the lower film roller are rotatably arranged on the feeding station of the workbench 1. The upper film 6 is wound on the upper film roller, and the lower film 7 is wound on the lower film roller. Of course, the upper film 6 and the lower film 7 can also be directly supplied by the film material production line, which is not described in detail here. The feeding by the upper film roller and the lower film roller can realize small production line processing, reduce investment cost and improve processing freedom. Of course, the upper film 6 and the lower film 7 can be an integral structure, which is aligned and arranged by folding. In this embodiment, the upper film roller and the lower film roller are taken as an example. The upper film roller and the lower film roller can be rotatably connected at the feeding station of the workbench 1. The upper film roller and the lower film roller can be arranged in an upper and lower distribution. The upper film roller is above, and the lower film roller is below. The upper film roller and the lower film roller are detachably mounted on the feeding station. When the upper film 6 and the lower film 7 are used up, the film can be replaced. The specific structure is prior art, which is not described in detail here.

[0038] The edge sealing assembly 4 is fixedly installed on the working position of the workbench 1, the upper film 6 and the lower film 7 are overlapped and passed through the edge sealing assembly 4, the edge sealing assembly 4 is used for edge sealing of the upper film 6 and the lower film 7, so that the upper film 6 and the lower film 7 form a cylindrical structure, when the upper film 6 and the lower film 7 are in a separated structure, the edge sealing assembly 4 can be double edge sealing, when the upper film 6 and the lower film 7 are in a folded structure, the edge sealing assembly 4 is single edge sealing. The edge sealing assembly 4 can include a first mounting frame, a third lifting driving element 13, a second lifting frame 14 and an edge sealing element 15, the first mounting frame is installed on the workbench 1, the first mounting frame can be an inverted concave structure, the upper film 6 and the lower film 7 are overlapped and passed through the lower part of the first mounting frame, the second lifting frame 14 is installed on the first mounting frame in a lifting manner, the first mounting frame is fixedly installed with the third lifting driving element 13, the output end of the third lifting driving element 13 is fixedly connected with the second lifting frame 14, the second lifting frame 14 is installed with the edge sealing element 15, the edge sealing element 15 is used for edge sealing of the overlapped edge of the upper film 6 and the lower film 7. When the edge sealing assembly 4 needs double edge sealing, the number of the edge sealing element 15 is 2, when the edge sealing assembly 4 needs single edge sealing, the number of the edge sealing element 15 is 1. The edge sealing element 15 can be heat sealed by electric heating, the blowing assembly 5 can be in the form of a roller, a pressing strip and the like, which will not be described here. The corresponding position of the edge sealing element 15 is installed with a supporting element 16 on the workbench 1, the edge sealing element 15 and the supporting element 16 cooperate to form edge sealing of the upper film 6 and the lower film 7, when the edge sealing element 15 is a roller, the supporting element 16 can be an arc-shaped heating strip, a roller and the like, which will not be described here.

[0039] The blowing assembly 5 is installed on the workbench 1 and is located at the opening position of the cylindrical structure, which is used for quantitatively blowing air into the inside of the cylindrical structure to make the cylindrical structure inflated. The blowing assembly 5 is located between the upper film 6 and the lower film 7, the blowing assembly 5 can be a combination of air exhaust and air pump structure, which is a prior art and will not be described here.

[0040] Reference Figures 4-5The roller pressing assembly 3 is installed on the working position of the workbench 1 and is used for middle part sealing and punching to form a packaging film. The roller pressing assembly 3 can include a second mounting frame, a second lifting driving element 11, a first lifting frame 10 and a sealing roller 12. The second mounting frame is installed on the working position of the workbench 1 and can be an inverted concave structure. The tubular structure passes below the second mounting frame. The first lifting frame 10 is installed on the second mounting frame in a lifting manner. The second mounting frame is fixedly installed with the second lifting driving element 11. The output end of the second lifting driving element 11 is fixedly connected with the first lifting frame 10. The sealing roller 12 is rotatably installed on the first lifting frame 10. When the tubular structure passes below the sealing roller 12, the second lifting driving element 11 drives the sealing roller 12 to descend and press the middle part of the tubular structure. The air in the drum is formed into a buffer bag of the packaging film under the action of the sealing roller 12. The sealing roller 12 can include a roller body 17, a heat sealing edge 18 and a cutting knife group 19. The roller body 17 can be a barrel structure. The heat sealing edge 18 is circumferentially arranged on the side wall of the roller body 17. The cutting knife group 19 is linearly arranged on the heat sealing edge 18 and is used for cutting the heat sealing area between the buffer bags. The shape of the heat sealing edge 18 can be set according to actual needs and can be a rhombic structure, a square structure, a strip structure and the like. The specific setting is according to the actual buffer bag. The heat sealing edge 18 can be heated by electricity. The specific structure is not described here. The heat sealing edge 18 can be composed of an elastic layer, an electric heating strip and a high-temperature-resistant cloth. The elastic layer has a certain buffering and resetting effect, facilitates overall contact, the electric heating strip is used for heating and the high-temperature-resistant cloth is used for uniformly distributing heat. Figures 6-7, the heat sealing edge strip 18 can be provided with a through hole, and the cutting knife group 19 is arranged in the through hole. The cutting knife group 19 can include a fixed ring, a communication pipe 20, a material injection pipe 21, a reset spring 22 and a blade 23. The fixed ring is embedded in the through hole of the side wall of the roller body 17, the roller body 17 is a hollow structure, the inside of which is used to hold hygroscopic material, the hygroscopic material can be formed into a fluid by heating and the like, the communication pipe 20 is fixedly installed in the inside of the fixed ring and communicates with the hollow structure, the blade 23 can be a star ray structure, preferably a cross structure, the blade 23 is fixedly arranged at the end of the fixed ring, the material injection pipe 21 is slidingly installed in the inside of the communication pipe 20 and extends out of the heat sealing edge strip 18 at one end and is at the center of the star of the blade 23, the material injection pipe 21 is connected with the reset spring 22, the reset spring 22 makes the material injection pipe 21 close to the blade 23, the inside of the communication pipe 20 is provided with a one-way valve 24, the one-way valve 24 limits the flow of the fluid in the inside of the communication pipe 20 to the inside of the material injection pipe 21. When the pressure sealing roller 12 rolls to perform pressure sealing, the heat sealing edge strip 18 is pressed to make the blade 23 extend out of the heat sealing edge strip 18, cut the pressure sealed packaging film to form a star-shaped cut, and the material injection pipe 21 is compressed to make the hygroscopic material in the inside fill into the center position of the star-shaped cut. The present embodiment can complete the processing and flow of the packaging film through the driving force of the pressure sealing roller 12, and the supporting roller is rotatably arranged at the corresponding position of the workbench 1. Of course, the traction structure can also be increased to complete the processing and flow of the packaging film, and the details are not described herein.

[0041] The stroke sensor can be installed on the workbench 1 or the roller pressing assembly 3 and is used to sense the current flow stroke L of the packaging film. i The current flow stroke L of the packaging film can be calculated by recording the length of the packaging film or by calculating the number of rotations of the pressure sealing roller 12. i The details are not described herein.

[0042] The timer is used to record the current time point t. i Wherein i is the time point sequence of the obtained data, and the timer is a prior art, and the details are not described herein.

[0043] The controller is electrically connected with the stroke sensor, the timer, the roller pressing assembly 3, the edge sealing assembly 4 and the blowing assembly 5. First, the upper film 6 and the lower film 7 are arranged above and below the blowing assembly 5 and are overlapped, and then pass through the edge sealing assembly 4 and the roller pressing assembly 3 in sequence. The controller obtains the width W of the current packaging film material, which can be obtained by the current film number, manually input or measured, and the details are not described herein. The controller controls the edge sealing assembly 4 to seal the edges of the upper film 6 and the lower film 7 to form a cylindrical structure, and the blowing assembly 5 blows gas into the inside of the cylindrical structure, and the flow rate of the blown gas is controlled by the controller. Wherein, a is an adjustment factor, β is the buffer coefficient of the buffer bag, H is the hardness of the packaging film material, a can be obtained by experiment, and the specific value can be 0.02, β can be understood as the saturation of the buffer bag, and the buffer bag can be divided into 10 levels from no air to no buffer inflation, and the corresponding level value can be obtained according to the need, and H can be obtained by the current hardness, and the material and thickness need to be considered to determine, which will not be described here. The controller controls the roller pressing assembly 3 to press and seal the tubular structure, specifically, the controller controls the pressing roller 12 to press on the tubular structure, and the pressing roller 12 rolls to press and seal the tubular structure by the heat sealing edge strip 18. The heat sealing edge strip 18 is pressed to make the blade 23 extend out of the heat sealing edge strip 18, the blade 23 cuts the pressed packaging film to form a star-shaped cutting seam, and the injection pipe 21 is compressed to fill the internal hygroscopic material into the center of the star-shaped cutting seam. Figures 8-9 The hygroscopic material forms a hygroscopic point in the center of the star-shaped cutting seam. When the packaging film is packaged, the hygroscopic point is in a shrinkage state. When the packaged object has moisture or water vapor, the hygroscopic point absorbs moisture and expands, so that the cutting seam is opened, facilitating the discharge of moisture and the volatilization of water vapor. Embodiment

[0044] The cutting assembly 2 is installed on the discharging station on the workbench 1, and the cutting assembly 2 is used for cutting the packaging film material. The cutting assembly 2 includes a third mounting frame, a first lifting driving element 9 and a cutting blade 8. The third mounting frame is fixedly installed on the workbench 1, the first lifting driving element 9 is fixedly installed on the third mounting frame, and the output shaft of the first lifting driving element 9 is fixedly installed with the cutting blade 8. The cutting blade 8 is transversely arranged. The cutting assembly 2 is connected with the controller, and the controller judges whether the current flow stroke L i of the packaging film is equal to a preset , where T is the cutting preparation time of the cutting assembly 2, that is, the falling time of the cutting blade 8. If yes, the controller controls the edge sealing assembly 4 to cut, and changes i=1 after cutting is completed. If no, no cutting is performed. By cutting by the cutting assembly 2, intelligent cutting can be realized, human cutting is avoided, and processing efficiency is improved.

[0045] Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by ordinary skilled in the art and related fields without creative labor shall belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A production equipment for a high-permeability packaging film material, characterized in that, The production equipment of the high-vapor-permeable packaging film material comprises: a workbench for forming a support body, the workbench is sequentially provided with a feeding station, a processing station and a discharging station; an edge sealing assembly fixedly installed on the processing station of the workbench, the upper film and the lower film are overlapped and pass through the edge sealing assembly, the edge sealing assembly is used for sealing the edge of the upper film and the lower film, and the upper film and the lower film form a cylindrical structure; an air blowing assembly installed on the workbench and located at an opening position of the cylindrical structure, and used for blowing air into the cylindrical structure in a quantitative manner; a roller pressing assembly installed on the processing station of the workbench, and used for middle sealing and punching of the cylindrical structure to form a packaging film; a travel sensor for sensing a current flow travel L of the packaging film i ; a timer for recording the current time point t i where i is the ordering of the time point at which the data was obtained; a controller electrically connected with the stroke sensor, the timer, the roller pressing assembly, the edge sealing assembly and the air blowing assembly, the upper film and the lower film are overlapped and sequentially pass through the edge sealing assembly and the roller pressing assembly, the controller obtains the width W of the current packaging film material, the controller controls the edge sealing assembly to seal the edges of the upper film and the lower film to form the cylindrical structure, the controller controls the air blowing assembly to blow gas into the cylindrical structure, and the flow rate of the blown gas is Q, and the controller controls the roller pressing assembly to seal the cylindrical structure; the roller pressing assembly comprises a second mounting frame, a second lifting driving element, a first lifting frame and a sealing roller, the second mounting frame is installed on the processing station of the workbench, the cylindrical structure passes below the second mounting frame, the first lifting frame is installed on the second mounting frame in a lifting manner, the second lifting driving element is fixedly installed on the second mounting frame, the output end of the second lifting driving element is fixedly connected with the first lifting frame, and the sealing roller is rotatably installed on the first lifting frame; when the cylindrical structure passes below the sealing roller, the second lifting driving element drives the sealing roller to descend and press the middle part of the cylindrical structure, and the blown air forms a buffer bag of the packaging film under the action of the sealing roller; the sealing roller comprises a roller body, a heat sealing edge strip and a cutting knife group, the roller body is a barrel structure, the heat sealing edge strip is fixedly arranged on the side wall of the roller body in a circumferential array, and the cutting knife group is arranged on the heat sealing edge strip in a linear array, and the cutting knife group is used for cutting the heat sealing area between the buffer bags; the cutting knife group comprises a fixed ring, a communication pipe, an injection pipe, a reset spring and a blade, the fixed ring is embedded in a through hole in the side wall of the roller body, the roller body is a hollow structure, the inside of the hollow structure is used for containing hygroscopic material, the communication pipe is fixedly installed in the inside of the fixed ring and communicates with the hollow structure, the blade is a star-ray structure, the blade is fixedly arranged at the end of the fixed ring, the injection pipe is slidably installed in the inside of the communication pipe and protrudes from the heat sealing edge strip at one end and is located at the center of the star of the blade, the injection pipe is connected with the reset spring, the reset spring enables the injection pipe to move towards the blade, and the inside of the communication pipe is provided with a one-way valve.

2. The production apparatus of a high-vapor-permeable bag film material according to claim 1, wherein a cutting assembly is installed on the discharging station of the workbench, and the cutting assembly is used for cutting the packaging film material.

3. The production apparatus of a high-vapor-permeable bag film material according to claim 2, wherein The cutting assembly comprises a third mounting frame, a first lifting driving element and a cutting blade, the third mounting frame is fixedly installed on the workbench, the first lifting driving element is fixedly installed on the third mounting frame, the output shaft of the first lifting driving element is fixedly installed with the cutting blade, the cutting assembly is connected with the controller, the controller judges whether the current flow stroke L of the packaging film is equal to a preset i , if yes, the controller controls the edge sealing assembly to cut, and if no, the cutting is not performed. , wherein T is the cutting preparation time of the cutting assembly, if yes, the controller controls the edge sealing assembly to cut, and if no, the cutting is not performed.

4. The production apparatus of a high-vapor-permeable bag film material according to claim 1, wherein the upper film roller and the lower film roller are rotatably arranged on the feeding station of the workbench, the upper film is wound on the upper film roller, and the lower film is wound on the lower film roller.

5. The production apparatus of a high-vapor-permeable bag film material according to claim 1, wherein The edge sealing assembly comprises a first mounting frame, a third lifting driving element, a second lifting frame and an edge sealing element.

6. The production apparatus of a high-vapor-permeable bag film material according to claim 1, wherein The heat-sealing edge strip is composed of an elastic layer, an electric heating strip and a high-temperature-resistant cloth, and the elastic layer, the electric heating strip and the high-temperature-resistant cloth are sequentially fixedly arranged.

Images