Film covering equipment for packaging bag processing and processing method thereof

Abstract

The invention provides film covering equipment for packaging bag processing and a processing method thereof. The film laminating equipment for packaging bag processing comprises a bottom plate; the device comprises a bottom plate, a film covering table is fixedly connected to the top of the bottom plate, supporting plates are fixedly connected to the positions, close to the front face and the back face, of the top of the film covering table, spraying assemblies are installed on the adjacent faces of the two supporting plates, and each spraying assembly comprises an installation plate, a connecting bolt, a flow dividing pipe and two rows of sprayers. And the mounting plate is matched with a connecting bolt to fix a flow dividing pipe, a conveying assembly for providing conveying force is installed on the back face of the film covering table, and a conveying pipe is installed at an outlet of the conveying assembly. According to the film covering equipment for packaging bag processing, through the design, the multiple nozzles in two rows are adopted, glue can be evenly sprayed to the surfaces of a film and a packaging bag, the glue is heated in cooperation with the electromagnetic heating plate, the solidification speed is increased, and the film covering effect and the film covering efficiency of the film covering equipment in the packaging bag film covering process are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of film laminating for packaging bag processing, and particularly relates to a film laminating device for packaging bag processing and a processing method thereof. Background Art

[0002] A packaging bag refers to a bag used for packaging various articles, which facilitates the transportation and storage of goods during the production and circulation processes, and is widely used in daily life and industrial production. Actual figures show that 80% of the plastic bags used are finally transported to landfills for disposal like general garbage, and only 7% of the plastics are recycled.

[0003] In order to improve the gloss and fastness of printed matter on packaging bags, extend the service life, enhance the protection effect, etc., film laminating is a processing technology that covers a transparent plastic film on the surface of printed matter. By means of water-based film laminating or by heating and pressing, the film is tightly combined with the printed matter to form a protective layer. This treatment can not only improve the gloss and fastness of the printed matter, but also extend its service life and enhance its protection effects such as moisture-proof, waterproof, anti-fouling, wear-resistant, fold-resistant, and chemical corrosion-resistant.

[0004] However, in the existing water-based film laminating equipment, the glue is likely to be unevenly applied during the glue application process, and after the glue is sprayed, it needs to be dried, which takes a long time during the drying process and will affect the film laminating effect and efficiency of the packaging bag.

[0005] Therefore, it is necessary to provide a film laminating device for packaging bag processing and a processing method thereof to solve the above technical problems. Summary of the Invention

[0006] The present invention provides a film laminating device for packaging bag processing and a processing method thereof, which solve the problems that when using a water-based film laminating device for packaging bag film laminating, the glue is likely to be unevenly applied and it takes a long time to dry after the glue is applied, thus affecting the film laminating effect and efficiency of the packaging bag.

[0007] To solve the above technical problems, the film laminating device for packaging bag processing provided by the present invention includes: a bottom plate;

[0008] A film laminating table, which is fixedly connected to the top of the bottom plate. At positions near the front and back of the top of the film laminating table, support plates are fixedly connected. On one adjacent side of the two support plates, a spraying assembly is installed. The spraying assembly includes a mounting plate, connecting bolts, a shunt pipe, and two rows of nozzles. The mounting plate is used to fix the shunt pipe in cooperation with the connecting bolts. A conveying assembly for providing a conveying force is installed on the back of the film laminating table. A conveying pipe is installed at the outlet of the conveying assembly. A suction pipe is installed at the inlet of the conveying assembly through a filtering component. On one adjacent side of the two support plates, electromagnetic heating plates are installed, and baffles are installed on both sides of the electromagnetic heating plates;

[0009] Two first guiding rollers, the two first guiding rollers are rotatably connected to a position near one side of the adjacent surfaces of the two support plates. On the adjacent surfaces of the two support plates, two second guiding rollers, a first film laminating roller and two auxiliary rollers are rotatably connected in sequence from one side to the other side. A telescopic assembly is installed on the top of the two support plates. The telescopic end of the telescopic assembly is rotatably connected to a second film laminating roller through a mounting structure. A first rotation opening and a second rotation opening are respectively formed on one side of the two support plates. A second material feeding roller and a first material feeding roller are respectively installed inside the first rotation opening and the second rotation opening. A winding assembly is installed through a mounting opening at a position near the other side between the two support plates. A driving assembly is installed on the back of the support plate located at the back;

[0010] The spraying assembly is located between the first guiding roller and the second guiding roller. The electromagnetic heating plate uses electromagnetic activity for heating. The electromagnetic heating plate is located between the second guiding roller and the first film laminating roller. The electromagnetic heating plate is divided into a receiving end and a transmitting end, which are respectively located at positions near the bottom and the top of the two support plates. The other end of the conveying pipe is connected to one end of the shunt pipe. The conveying assembly includes a housing and a conveying pump. The filtering component includes a housing and a filter screen. The other end of the suction pipe is connected to the recycling box. Glue is placed inside the recycling box. If necessary, a stirring structure can be installed inside the recycling box. The baffle can play a shielding role, that is, it can prevent the glue from splashing and can also accelerate the temperature rise in the working area of the electromagnetic heating plate. The two second guiding rollers and the two first guiding rollers are both distributed up and down. The two auxiliary rollers are alternately installed. The first film laminating roller is located below the second film laminating roller. The driving assembly provides rotational power for the first film laminating roller.

[0011] Preferably, a limiting assembly is installed on the adjacent surfaces of the two support plates. The limiting assembly includes a second telescopic component, a movable component and a limiting component. The second telescopic component is used to provide a telescopic force for the movable component installed with the limiting component;

[0012] The limiting component is used to assist the packaging bag and the film to be centered and prevent deviation. The telescopic component is a telescopic rod.

[0013] Preferably, a control box with a box door is installed on the top of the bottom plate. An operation screen is installed on the front of the film laminating table through a mounting base;

[0014] The operation screen can set the operating parameters of the equipment on the bottom plate. A lock is set on the box door.

[0015] Preferably, a recycling port is formed on the top of the film laminating table. A recycling box is installed inside the recycling port. An intercepting component is installed inside the recycling box;

[0016] The recycling box is located below the nozzle. The intercepting component is used to filter impurities.

[0017] Preferably, the driving assembly includes a protective structure, a ventilation structure, and a driving component. The protective structure is used to mount the driving component, and the driving component is used to provide rotational power for the first film laminating roller.

[0018] Preferably, the telescopic assembly includes a fixing plate, a stabilizing structure, and a first telescopic component. The fixing plate is used to mount the first telescopic component, and the stabilizing structure penetrates the fixing plate to increase the stability of the mounting structure.

[0019] Preferably, a front plate is installed at the front position on the top of the film laminating table, and a rear plate is installed on the back of the film laminating table;

[0020] Openings are provided on the front plate and the rear plate for the equipment on the film laminating table to pass through.

[0021] Preferably, a top cover is installed on the top of the front plate and the rear plate through a fixing structure, and a sealing cover with a handle is installed at each end of the front plate and the rear plate;

[0022] The front plate, the rear plate, the top cover, and the sealing cover form a sealed space to cover the top of the film laminating table.

[0023] Preferably, a vacuum device is installed on the top of the top cover. A discharge pipe is installed at the outlet of the vacuum device, and a solenoid valve is installed at the inlet of the vacuum device through a connecting pipe;

[0024] The other end of the solenoid valve is connected to the top cover through a pipeline.

[0025] A processing method for a film laminating device for processing packaging bags. When processing, the processing method for the film laminating device for processing packaging bags is required, including the following steps:

[0026] S1: Install a spraying assembly composed of a mounting plate, connecting bolts, a shunt pipe, and nozzles between two first guide rollers and two second guide rollers, and make the two groups of nozzles face the adjacent sides of the packaging bag and the film respectively. Then connect the conveying pipe at the outlet of the conveying assembly to the shunt pipe, and the glue can be conveyed to the nozzles through the conveying assembly for uniform spraying;

[0027] S2: Install electromagnetic heating plates at positions near the top and bottom between the first film laminating roller and the second film laminating roller and the two second guide rollers. The electromagnetic heating plates can be used to heat the packaging bag and the film after spraying glue to accelerate the solidification of the glue;

[0028] S3: Before laminating the packaging bag, install the film and the packaging bag through the first unwinding roller and the second unwinding roller respectively. Then, pass the film and the packaging bag through the back sides of the two first guiding rollers in sequence, then through the adjacent sides of the two second guiding rollers, and then through the space between the first laminating roller and the second laminating roller. After connecting the two auxiliary rollers to the winding assembly, the winding assembly can be started to slowly wind. During this process, the spraying assembly sprays glue on the adjacent sides of the film and the packaging bag. At the same time, the electromagnetic heating plate heats the packaging bag and the film coated with glue to make it solidify quickly. When the glue reaches the state where it can be laminated, the first laminating roller and the second laminating roller laminate the film on the surface of the packaging bag by extrusion to complete the lamination.

[0029] Compared with the related technology, the laminating equipment for packaging bag processing and its using method provided by the present invention have the following beneficial effects:

[0030] The present invention provides a laminating equipment for packaging bag processing. In order to improve the efficiency and effect during the laminating process of the water-based laminating equipment for packaging bags, a spraying assembly composed of a mounting plate, connecting bolts, a shunt pipe and nozzles is installed between the two first guiding rollers and the two second guiding rollers. Let the two groups of nozzles face the adjacent sides of the packaging bag and the film respectively, and the angle between the nozzles and the packaging bag and the film is 45°. Through the nozzles, the glue for water-based lamination can be evenly sprayed on the sides of the packaging bag and the film that need to be adhered. Then, connect the conveying pipe at the outlet of the conveying assembly to the shunt pipe, and the glue can be conveyed to the nozzles through the conveying assembly for uniform spraying. And electromagnetic heating plates are installed at the positions near the top and bottom between the first laminating roller and the second laminating roller and the two second guiding rollers. Through the electromagnetic heating plates, the packaging bag and the film after spraying glue can be heated to accelerate the solidification of the glue. Through this design, multiple nozzles in two rows can evenly spray the glue on the surfaces of the film and the packaging bag, and cooperate with the electromagnetic heating plates to heat the glue to increase the solidification speed, which is beneficial to improving the laminating effect and laminating efficiency of the laminating equipment during the laminating process of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of the first embodiment of the laminating equipment for packaging bag processing provided by the present invention;

[0032] Figure 2 It is a schematic structural diagram of the driving assembly provided by the present invention;

[0033] Figure 3 It is a schematic structural diagram of the spraying assembly provided by the present invention;

[0034] Figure 4 It is a schematic structural diagram of the auxiliary roller provided by the present invention;

[0035] Figure 5 provided by the present inventionFigure 4 Enlarged view of location A shown

[0036] Figure 6 Provided by the present invention Figure 4 Enlarged view of location B shown

[0037] Figure 7 Schematic structural diagram of the driving component provided by the present invention

[0038] Figure 8 Schematic structural diagram of the second embodiment of the film laminating device for processing packaging bags provided by the present invention

[0039] Figure 9 Schematic structural diagram of the solenoid valve provided by the present invention

[0040] Reference numerals in the figure: 1, bottom plate; 2, mounting base; 3, recycling bin; 4, suction pipe; 5, film laminating table; 6, first rotating port; 7, second rotating port; 8, support plate; 9, first material feeding roller; 10, second material feeding roller; 11, baffle; 12, electromagnetic heating plate; 13, telescopic assembly, 131, fixing plate, 132, stabilizing structure, 133, first telescopic member; 14, limiting assembly, 141, second telescopic member, 142, movable member, 143, limiting structure; 15, winding assembly, 151, supporting structure, 152, driving device, 153, quick-release structure, 154, winding roller; 16, operation screen; 17, control box; 18, box door; 19, mounting port; 20, driving assembly, 201, protective structure, 202, breathable structure, 203, driving component; 21, conveying assembly; 22, filtering component; 23, conveying pipe; 24, spraying assembly, 241, mounting plate, 242, connecting bolt, 243, shunt pipe, 244, spray head; 25, intercepting component; 26, first guiding roller; 27, second guiding roller; 28, recycling port; 29, auxiliary roller; 30, first film laminating roller; 31, second film laminating roller; 32, mounting structure; 33, top cover; 34, sealing cover; 35, handle; 36, front plate; 37, vacuum device; 38, discharge pipe; 39, connecting pipe; 40, solenoid valve; 41, fixing structure; 42, rear plate. Detailed implementation manners

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0042] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , wherein, Figure 1 Schematic structural diagram of the first embodiment of the film laminating device for processing packaging bags provided by the present inventionFigure 2 The structural schematic diagram of the driving component provided by the present invention; Figure 3 The structural schematic diagram of the spraying component provided by the present invention; Figure 4 The structural schematic diagram of the auxiliary roller provided by the present invention; Figure 5 The present invention provides Figure 4 The enlarged view of the position A shown; Figure 6 The present invention provides Figure 4 The enlarged view of the position B shown; Figure 7 The structural schematic diagram of the driving component provided by the present invention. The film laminating equipment for packaging bag processing includes: a bottom plate 1;

[0043] A film laminating table 5, the film laminating table 5 is fixedly connected to the top of the bottom plate 1, and support plates 8 are fixedly connected to the top of the film laminating table 5 near the front and back positions. A spraying component 24 is installed on the adjacent surfaces of the two support plates 8. The spraying component 24 includes a mounting plate 241, connecting bolts 242, a shunt pipe 243 and two rows of nozzles 244. The mounting plate 241 is used to fix the shunt pipe 243 in cooperation with the connecting bolts 242. A conveying component 21 providing conveying force is installed on the back of the film laminating table 5. A conveying pipe 23 is installed at the outlet of the conveying component 21. A suction pipe 4 is installed at the inlet of the conveying component 21 through a filtering component 22. Electromagnetic heating plates 12 are installed on the adjacent surfaces of the two support plates 8, and baffles 11 are installed on both sides of the electromagnetic heating plates 12;

[0044] Two first guiding rollers 26, the two first guiding rollers 26 are rotatably connected to the adjacent surfaces of the two support plates 8 near one side. Two second guiding rollers 27, a first film laminating roller 30 and two auxiliary rollers 29 are rotatably connected to the adjacent surfaces of the two support plates 8 in sequence from one side to the other side. A telescopic component 13 is installed on the top of the two support plates 8. The telescopic end of the telescopic component 13 is rotatably connected to a second film laminating roller 31 through a mounting structure 32. A first rotation port 6 and a second rotation port 7 are respectively opened on one side of the two support plates 8. A second material feeding roller 10 and a first material feeding roller 9 are respectively installed inside the first rotation port 6 and the second rotation port 7. A winding component 15 is installed through a mounting port 19 near the other side between the two support plates 8. A driving component 20 is installed on the back of the support plate 8 located on the back;

[0045] The spraying assembly 24 is located between the first guiding roller 26 and the second guiding roller 27. The electromagnetic heating plate 12 uses electromagnetic activity for heating. The electromagnetic heating plate 12 is located between the second guiding roller 27 and the first film laminating roller 30. The electromagnetic heating plate 12 is divided into a receiving end and a transmitting end, which are respectively located at positions near the bottom and the top of the two support plates 8. The other end of the conveying pipe 23 is connected to one end of the shunt pipe 243. The conveying assembly 21 includes a housing and a conveying pump. The filtering component 22 includes a housing and a filter net. The other end of the suction pipe 4 is connected to the recycling box 3. Glue is placed inside the recycling box 3. If necessary, a stirring structure can be installed inside the recycling box 3. The baffle 11 can play a shielding role, that is, it can prevent the glue from splashing and can also accelerate the temperature rise in the working area of the electromagnetic heating plate 12. The two second guiding rollers 27 and the two first guiding rollers 26 are both distributed vertically. The two auxiliary rollers 29 are alternately installed. The first film laminating roller 30 is located below the second film laminating roller 31. The driving assembly 20 provides rotational power for the first film laminating roller 30. The distance between the first film laminating roller 30 and the second film laminating roller 31 can be adjusted through the telescopic assembly 13. The distances between the first film laminating roller 30 and the second film laminating roller 31 and the two second guiding rollers 27 can be adjusted according to requirements.

[0046] On one adjacent side of each of the two support plates 8, a limiting assembly 14 is installed. The limiting assembly 14 includes a second telescopic member 141, a movable member 142, and a limiting member 143. The second telescopic member 141 is used to provide a telescopic force for the movable member 142 on which the limiting member 143 is installed.

[0047] The limiting member 143 is used to assist the packaging bag and the film to be centered and prevent deviation. The telescopic member 141 is a telescopic rod and is respectively installed on the opposite sides of the two support plates 8.

[0048] On the top of the bottom plate 1, a control box 17 with a box door 18 is installed. On the front of the film laminating table 5, an operation screen 16 is installed through a mounting base 2.

[0049] The operation screen 16 can set the operating parameters of the equipment on the bottom plate 1. A lock is provided on the box door 18. Inside the control box 17, a power switch and a controller for controlling the operation of the equipment are installed.

[0050] On the top of the film laminating table 5, a recycling port 28 is opened. Inside the recycling port 28, a recycling box 3 is installed. Inside the recycling box 3, an intercepting component 25 is installed.

[0051] The recycling box 3 is located below the nozzle 244. The intercepting component 25 is used to filter impurities.

[0052] The driving component 20 includes a protective structure 201, a ventilation structure 202, and a driving part 203. The protective structure 201 is used to mount the driving part 203, and the driving part 203 is used to provide rotational power for the first film laminating roller 30;

[0053] The ventilation structure 202 is a ventilation hole for assisting in heat dissipation.

[0054] The telescopic component 13 includes a fixing plate 131, a stabilizing structure 132, and a first telescopic part 133. The fixing plate 131 is used to mount the first telescopic part 133, and the stabilizing structure 132 penetrates through the fixing plate 131 to increase the stability of the mounting structure 32;

[0055] The first telescopic part 133 is a telescopic rod, and the stabilizing structure 132 is slidably connected to the fixing plate 131.

[0056] A processing method for a film laminating device for processing packaging bags. When processing the packaging bags, the processing method of the film laminating device for processing packaging bags is required, including the following steps:

[0057] S1: Install a spraying component 24 composed of a mounting plate 241, a connecting bolt 242, a shunt pipe 243, and a nozzle 244 between two first guiding rollers 26 and two second guiding rollers 27, and make the two groups of nozzles 244 face the adjacent sides of the packaging bag and the film respectively. Then connect the conveying pipe 23 at the outlet of the conveying component 21 to the shunt pipe 243, and the glue can be conveyed to the nozzles 244 through the conveying component 21 for uniform spraying;

[0058] S2: Install the electromagnetic heating plates 12 at positions near the top and bottom between the first film laminating roller 30 and the second film laminating roller 31 and the two second guiding rollers 27. The electromagnetic heating plates can heat the packaging bag and the film after spraying glue to accelerate the solidification of the glue;

[0059] S3: Before laminating the packaging bag, first install the film and the packaging bag through the first unwinding roller 9 and the second unwinding roller 10 respectively. Then pass the film and the packaging bag through the opposite sides of the two first guiding rollers 26 in sequence, then through the adjacent sides of the two second guiding rollers 27, and then through between the first film laminating roller 30 and the second film laminating roller 31. Connect the two auxiliary rollers 29 to the winding component 15. Then start the winding component 15 to slowly wind. During this process, the spraying component 24 sprays glue on the adjacent sides of the film and the packaging bag, and at the same time, the electromagnetic heating plates 12 heat the packaging bag and the film coated with glue to make it solidify quickly. When the glue reaches the state where it can be laminated, the first film laminating roller 30 and the second film laminating roller 31 laminate the film on the surface of the packaging bag by extrusion to complete the lamination.

[0060] The working principle of the film laminating equipment for packaging bag processing provided by the present invention and its usage method is as follows:

[0061] Install a spraying assembly 24 composed of a mounting plate 241, a connecting bolt 242, a shunt pipe 243 and a nozzle 244 between two first guiding rollers 26 and two second guiding rollers 27, and make the two groups of nozzles 244 face the adjacent sides of the packaging bag and the film respectively, and make the angle between the nozzles 244 and the packaging bag and the film be 45°. Through the nozzles 244, the glue for water-based film laminating can be evenly sprayed on the sides of the packaging bag and the film that need to be adhered. Then connect the conveying pipe 23 at the outlet of the conveying assembly 21 with the shunt pipe 243, and the glue can be conveyed to the nozzles 244 through the conveying assembly 21 for uniform spraying. And install electromagnetic heating plates 12 at positions near the top and bottom between the first film laminating roller 30 and the second film laminating roller 31 and the two second guiding rollers 27. Through the electromagnetic heating plates, the packaging bag and the film after spraying glue can be heated to accelerate the solidification of the glue. During actual use, first install the film and the packaging bag through the first unwinding roller 9 and the second unwinding roller 10 respectively, then pass the film and the packaging bag through the opposite sides of the two first guiding rollers 26 in sequence, then pass through the adjacent sides of the two second guiding rollers 27, and then pass through between the first film laminating roller 30 and the second film laminating roller 31. Connect with the two auxiliary rollers 29 and the winding assembly 15, and then the winding assembly 15 can be started to slowly wind. During this process, the spraying assembly 24 sprays the glue on the adjacent sides of the film and the packaging bag, and at the same time, the electromagnetic heating plates 12 heat the packaging bag and the film coated with glue to make it solidify quickly. When the glue reaches the state where film laminating can be carried out, the first film laminating roller 30 and the second film laminating roller 31 attach the film to the surface of the packaging bag by extrusion to complete film laminating.

[0062] Compared with the related technologies, the film laminating equipment for packaging bag processing provided by the present invention and its usage method have the following beneficial effects:

[0063] In order to improve the efficiency and effect of the water-based laminating equipment during the laminating process of packaging bags, a spraying assembly 24 composed of a mounting plate 241, connecting bolts 242, a shunt pipe 243, and nozzles 244 is installed between two first guide rollers 26 and two second guide rollers 27. The two groups of nozzles 244 are respectively oriented towards the adjacent sides of the packaging bag and the film, and the angle between the nozzles 244 and the packaging bag and the film is 45°. Through the nozzles 244, the glue for water-based lamination can be evenly sprayed on the sides of the packaging bag and the film that need to be adhered. Then, the conveying pipe 23 at the outlet of the conveying assembly 21 is connected to the shunt pipe 243, and the glue can be conveyed to the nozzles 244 through the conveying assembly 21 for uniform spraying. And electromagnetic heating plates 12 are installed at positions near the top and bottom between the first laminating roller 30 and the second laminating roller 31 and the two second guide rollers 27. Through the electromagnetic heating plates, the packaging bag and the film after spraying the glue can be heated to accelerate the solidification of the glue. Through this design, multiple nozzles 244 in two rows can evenly spray the glue on the surfaces of the film and the packaging bag, and cooperate with the electromagnetic heating plates 12 to heat the glue to increase the solidification speed, which is beneficial to improving the laminating effect and laminating efficiency of the laminating equipment during the laminating process of packaging bags.

[0064] Second Embodiment

[0065] Please refer to Figures 8 - 9 , Figure 8 which is a schematic structural diagram of the second embodiment of the laminating equipment for packaging bag processing provided by the present invention; Figure 9 which is a schematic structural diagram of the solenoid valve provided by the present invention. Based on the laminating equipment for packaging bag processing and its usage method provided in the first embodiment of the present application, the second embodiment of the present application proposes another laminating equipment for packaging bag processing and its processing method. The second embodiment is merely a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0066] Specifically, the difference between the laminating equipment for packaging bag processing and its usage method provided in the second embodiment of the present application is that a front plate 36 is installed at the front position on the top of the laminating table 5, and a rear plate 42 is installed on the back of the laminating table 5;

[0067] Openings are provided on the front plate 36 and the rear plate 42 for the equipment on the laminating table 5 to pass through, and the connection parts are sealed.

[0068] The top cover 33 is installed at the top of the front plate 36 and the rear plate 42 through a fixing structure 41, and a sealing cover 34 with a handle 35 is installed at each end of the front plate 36 and the rear plate 42;

[0069] The front plate 36, the rear plate 42, the top cover 33, and the sealing cover 34 form a sealed space to cover the top of the laminating table 5.

[0070] A vacuum device 37 is installed on the top of the top cover 33. A discharge pipe 38 is installed at the outlet of the vacuum device 37, and a solenoid valve 40 is installed at the inlet of the vacuum device 37 through a connecting pipe 39.

[0071] The other end of the solenoid valve 40 is connected to the top cover 33 through a pipeline, and the vacuum device 37 is a vacuum pump.

[0072] Compared with the related art, the film laminating device for processing packaging bags and its using method provided by the present invention have the following beneficial effects:

[0073] In order to improve the film laminating effect of the packaging bag, the front plate 36 and the rear plate 42 are installed on the film laminating table 5. Then, the top cover 33 is installed on the tops of the front plate 36 and the rear plate 42 through a fixing structure 41 to form a sealed space. A vacuum device 37 is installed on the top of the top cover 33. With the cooperation of the solenoid valve 40, this space can be pumped into a relative vacuum. During the use process, first, the packaging bag and the film are installed in the corresponding positions. Then, the two ends of the frame composed of the top cover 33, the front plate 36 and the rear plate 42 are sealed by two sealing covers 34. Then, the vacuum device 37 is started to pump the inside of this frame into a relative vacuum, and then the structure on the film laminating table 5 can be started to laminate the packaging bag. Through this design, the packaging bag can be laminated in a relative vacuum environment, which can reduce the influence of dust in the air on the film lamination and is beneficial to improving the film laminating effect of the packaging bag.

[0074] The above are only the embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A film laminating device for packaging bag processing, characterized in that: include: Base plate; A coating table, wherein the coating table is fixedly connected to the top of the bottom plate, and support plates are fixedly connected to the top of the coating table near the front and back sides, and a spray assembly is installed on one side adjacent to the two support plates, and the spray assembly comprises a mounting plate, a connecting bolt, a shunt pipe and two rows of nozzles, and the mounting plate cooperates with the connecting bolt to fix the shunt pipe, and a conveying assembly providing a conveying force is installed on the back of the coating table, and a conveying pipe is installed at the outlet of the conveying assembly, and a straw is installed at the inlet of the conveying assembly through a filtering component, and an electromagnetic heating plate is installed on one side adjacent to the two support plates, and baffles are installed on both sides of the electromagnetic heating plate; Two first guide rollers, the two first guide rollers are rotatably connected to a position near one side of an adjacent surface of two support plates, two second guide rollers, a first coating roller and two auxiliary rollers are rotatably connected to an adjacent surface of the two support plates from one side to the other side in sequence, a telescopic component is installed on the top of the two support plates, and the telescopic end of the telescopic component is rotatably connected to the second coating roller through a mounting structure, a first rotating opening and a second rotating opening are respectively opened on one side of the two support plates, and a second unloading roller and a first unloading roller are respectively installed inside the first rotating opening and the second rotating opening, a winding component is installed through the mounting opening at a position near the other side between the two support plates, and a driving component is installed on the back side of the support plate located on the back side.

2. The film laminating equipment for packaging bag processing according to claim 1, characterized in that: A limiting component is installed on one adjacent side of the two support plates. The limiting component includes a second telescopic component, a movable component and a limiting component. The second telescopic component is used to provide a telescopic force for the movable component on which the limiting component is installed.

3. The film laminating equipment for packaging bag processing according to claim 1, characterized in that: A control box with a door is installed on the top of the bottom plate, and an operation screen is installed on the front of the laminating table through a mounting base.

4. The film laminating equipment for packaging bag processing according to claim 1, characterized in that: A recovery port is provided on the top of the film-coating table, a recovery frame is installed inside the recovery port, and an interception component is installed inside the recovery frame.

5. The film laminating equipment for packaging bag processing according to claim 1, characterized in that: The driving assembly comprises a protective structure, a breathable structure and a driving component, wherein the protective structure is used for installing the driving component, and the driving component is used for providing rotational power for the first coating roller.

6. The film laminating equipment for packaging bag processing according to claim 1, characterized in that: The telescopic assembly comprises a fixing plate, a stabilizing structure and a first telescopic component. The fixing plate is used to install the first telescopic component, and the stabilizing structure penetrates the fixing plate to increase the stability of the installation structure.

7. The film laminating equipment for packaging bag processing according to claim 1, characterized in that: A front plate is installed at the front position of the top of the laminating table, and a rear plate is installed at the back of the laminating table.

8. The film laminating equipment for packaging bag processing according to claim 7, characterized in that: A top cover is installed on the top of the front plate and the rear plate through a fixing structure, and a sealing cover with a handle is installed at both ends of the front plate and the rear plate.

9. The film laminating equipment for packaging bag processing according to claim 8, characterized in that: A vacuum device is installed on the top of the top cover, a discharge pipe is installed at the outlet of the vacuum device, and a solenoid valve is installed at the inlet of the vacuum device through a connecting pipe.

10. A method for processing a film-coating device for packaging bag processing, characterized in that: The laminating device for processing packaging bags comprises a laminating device for processing packaging bags as claimed in any one of claims 1 to 9, wherein the laminating device for processing packaging bags requires a processing method for the laminating device for processing packaging bags during processing, comprising the following steps: S1: A spraying assembly consisting of a mounting plate, a connecting bolt, a diverter pipe and a nozzle is installed between the two first guide rollers and the two second guide rollers, and the two groups of nozzles are respectively directed toward the adjacent sides of the packaging bag and the film. After that, the conveying pipe and the diverter pipe at the outlet of the conveying assembly are connected, and the glue can be conveyed to the nozzle through the conveying assembly for uniform spraying; S2: Install the electromagnetic heating plate between the first laminating roller, the second laminating roller and the two second guide rollers near the top and the bottom. The electromagnetic heating plate can heat the packaging bag and the film after the glue is sprayed to accelerate the solidification of the glue. S3: Before laminating the packaging bag, first install the film and the packaging bag through the first unloading roller and the second unloading roller respectively, then pass the film and the packaging bag through the opposite side of the two first guide rollers in turn, then pass through the adjacent side of the two second guide rollers, and then pass through between the first laminating roller and the second laminating roller. After connecting the two auxiliary rollers with the winding assembly, the winding assembly can be started to slowly wind up. During this process, the spraying assembly sprays glue on the adjacent side of the film and the packaging bag, and the electromagnetic heating plate heats the packaging bag and film coated with oil glue to make it solidify quickly. When the glue reaches a state that can be laminated, the first laminating roller and the second laminating roller apply the film to the surface of the packaging bag by extrusion to complete the lamination.

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