Packaging box sealing film pressing assembly

Abstract

The invention particularly relates to a packaging box sealing film press-fit assembly. The packaging box sealing film press-fit assembly comprises a conveying belt, a feeding mechanism, a film sealing mechanism and a press-fit mechanism. The feeding mechanism is mounted on the conveying belt and comprises a first support, a first air cylinder is mounted on the first support, the free end of the first air cylinder is connected with a first mounting box, the interior of the first mounting box is hollow, a plurality of filling pipes are mounted on the first mounting box, and a connecting pipe is connected to the first mounting box; the film sealing mechanism is arranged on the upper side of the conveying belt and on one side of the filling mechanism and comprises a stand column, a guide rail is fixedly connected to the stand column and connected with the conveying belt, a film feeding mechanism is installed on the guide rail, and a film preparing mechanism is installed on one side of the conveying belt. The integrated production level of the moisture-proof cover can be improved, the space occupied by production equipment can be reduced, meanwhile, the production efficiency of the moisture-proof cover can be greatly improved, and it is guaranteed that the moisture-proof cover can be efficiently produced.

Description

Technical Field

[0001] The invention belongs to the technical field of moisture-proof cover production, and in particular relates to a packaging box sealing film pressing component. Background Art

[0002] A moisture-proof cover is a cover that can prevent air, water, humidity and other external factors from entering the container, thereby keeping the contents dry. Moisture-proof covers are usually composed of low-density polyethylene (LDPE) bottle cap skeleton, desiccant and cardboard. Moisture-proof covers have the advantages of preventing items from getting damp and extending the shelf life. At the same time, they can also protect the sterile environment and prevent harmful substances such as bacteria from entering. Therefore, moisture-proof covers are widely used in the fields of medicine and food, such as dried fruits, candies, chocolate and other foods, as well as medicines, cosmetics, etc.

[0003] The existing moisture-proof covers need to go through processes such as placing desiccant, sealing film and pressing film during production. Each process requires complex structural equipment to be implemented, with a low degree of integration and a large equipment footprint, which is not conducive to the efficient and rapid production of moisture-proof covers, and thus easily reduces the production efficiency of moisture-proof covers.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a packaging box sealing film pressing assembly.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The object of the present invention is to provide a packaging box sealing film pressing assembly, which can solve the problem that the moisture-proof cover cannot be produced quickly and in an integrated manner.

[0007] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0008] A packaging box film sealing and pressing assembly, comprising: a conveyor belt, a filling mechanism, a film sealing mechanism and a pressing mechanism;

[0009] The filling mechanism is installed on the conveyor belt, and the feeding mechanism includes a first bracket, a first cylinder is installed on the first bracket, a first installation box is connected to the free end of the first cylinder, the first installation box is hollow inside, a plurality of filling tubes are installed on the first installation box, and a connecting tube is connected to the first installation box;

[0010] The film sealing mechanism is arranged on the upper side of the conveyor belt and on one side of the feeding mechanism. The film sealing mechanism comprises a column, a guide rail is fixedly connected to the column, the guide rail is connected to the conveyor belt, a film feeding mechanism is installed on the guide rail, and a film preparation mechanism is installed on one side of the conveyor belt;

[0011] The pressing mechanism is installed on the conveyor belt and is arranged on a side of the film sealing mechanism away from the conveyor belt.

[0012] In one or more embodiments of the present invention, the interior of the first installation box is connected to the outside through the filling pipe, the connecting pipe is connected to the interior of the first installation box, and a control valve is installed on the connecting pipe. When the control valve is opened, the desiccant can enter the first installation box through the connecting pipe, and then be added to several moisture-proof covers on the conveyor belt through several filling pipes to realize the addition of desiccant.

[0013] In one or more embodiments of the present invention, a guide rail motor is installed on the column, and a screw rod is connected to the output end of the guide rail motor. The screw rod is rotatably connected to the guide rail, and the film feeding mechanism includes a side plate, and the side plate is threadedly connected to the screw rod. When the guide rail motor is running, the guide rail motor can cause the screw rod to rotate. Since the screw rod is threadedly connected to the side plate, it can drive the side plate to move so as to adjust the position of the side plate.

[0014] In one or more embodiments of the present invention, a mounting plate is connected to the side plate, and the mounting plate is used to mount the second cylinder and the vacuum box;

[0015] A second cylinder is installed on the mounting plate, and the second cylinder is used to control the lifting of the vacuum box so as to adjust the height of the vacuum suction cup, so that the vacuum suction cup can absorb the sealing film from the film taking hole or release the sealing film into the moisture-proof cover so that the sealing film can cover the desiccant;

[0016] The free end of the second cylinder is connected with a vacuum box, and the vacuum box is used to install a plurality of vacuum suction cups.

[0017] In one or more embodiments of the present invention, the interior of the vacuum box is hollow, and a plurality of vacuum suction cups are connected to the lower end of the vacuum box. The interior of the vacuum box is connected to the outside world through the vacuum suction cups, and the plurality of vacuum suction cups respectively correspond to the plurality of filling tubes. When a negative pressure state is formed inside the vacuum box, the vacuum box will generate suction at the port of the vacuum suction cup, and then the vacuum suction cup can be used to absorb the sealing film in the film taking hole.

[0018] In one or more embodiments of the present invention, a first vacuum pump is installed on the mounting plate, and the suction end of the first vacuum pump is arranged in the vacuum box. When the first vacuum pump is running, the first vacuum pump can extract the gas in the vacuum box, thereby forming a negative pressure state inside the vacuum box.

[0019] In one or more embodiments of the present invention, the film preparation mechanism includes a film feeding frame, and the film feeding frame is used to install a winding roller and a fixing frame;

[0020] The film feeding frame is provided with a winding roller, and the winding roller is used to wind the remaining film sealing material;

[0021] The winding roller is wound with a sealing tape, and the sealing tape can be used to cover the desiccant in the moisture-proof cover.

[0022] In one or more embodiments of the present invention, a base is provided on the lower side of the film delivery frame, a third cylinder is installed on the base, a lifting plate is installed on the free end of the third cylinder, and a plurality of lifting columns are installed on the lifting plate. When the third cylinder is extended, the third cylinder drives the lifting plate and the plurality of lifting columns to rise, so that one end of the lifting column can pass through the through hole.

[0023] In one or more embodiments of the present invention, the film delivery frame is provided with a plurality of through holes, and a plurality of lifting columns are respectively inserted into the plurality of through holes. When the lifting columns rise, the lifting columns protrude from the film delivery frame, and the protruding lifting columns can intercept the sealing film of the moisture-proof cover.

[0024] A fixing frame is installed on the film feeding frame, and a plurality of film taking holes are arranged on the fixing frame, and the film taking holes correspond to the through holes. Through the cooperation between the ascending lifting column and the fixing frame, the sealing film matched with the moisture-proof cover can be intercepted, so as to cover the desiccant in the moisture-proof cover.

[0025] In one or more embodiments of the present invention, the pressing mechanism includes a second bracket, a fourth cylinder is installed on the second bracket, the free end of the fourth cylinder is connected to a heating box, a plurality of pressing parts are connected to the bottom of the heating box, the plurality of pressing parts respectively correspond to the plurality of filling tubes, a heating wire is installed in the heating box, when the heating wire is running, the heating wire can heat the pressing parts to increase the temperature of the pressing parts, when the pressing parts are in contact with the moisture-proof cover, the pressing parts can heat the moisture-proof cover, and can press the sealing film inside the moisture-proof cover so as to fix the desiccant.

[0026] Compared with the prior art, the packaging box sealing film pressing assembly of the present invention can improve the integrated production level of the moisture-proof cover, which can not only reduce the space occupied by the production equipment, but also greatly improve the production efficiency of the moisture-proof cover, ensuring that the moisture-proof cover can be produced efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention 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 described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A first angle stereogram of a packaging box sealing film pressing assembly in one embodiment of the present invention;

[0029] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle;

[0030] Figure 3 for Figure 1 Schematic diagram of the structure at B in the middle;

[0031] Figure 4 A second angle stereogram of a packaging box sealing film pressing assembly in one embodiment of the present invention;

[0032] Figure 5 for Figure 4 Schematic diagram of the structure at C in the middle;

[0033] Figure 6 A three-dimensional diagram of a film preparation mechanism in one embodiment of the present invention;

[0034] Figure 7 It is a cross-sectional view of a membrane preparation mechanism in one embodiment of the present invention;

[0035] Figure 8 for Figure 7 Schematic diagram of the structure at D in the middle;

[0036] Fig. 9 A side cross-sectional view of a packaging box sealing film pressing assembly in one embodiment of the present invention;

[0037] Fig.10 for Fig. 9 Schematic diagram of the structure at E in the middle;

[0038] Fig.11 for Fig. 9 Schematic diagram of the structure at F in the middle;

[0039] Fig.12 for Fig. 9 Schematic diagram of the structure at G in the middle.

[0040] Description of main reference numerals:

[0041] 1- conveyor belt, 2- filling mechanism, 201- first bracket, 202- first cylinder, 203- first installation box, 204- filling pipe, 205- connecting pipe, 3- film sealing mechanism, 301- column, 302- guide rail, 303- guide rail motor, 304- side plate, 305- installation plate, 306- second cylinder, 307- vacuum box, 308- vacuum suction cup, 309- first vacuum pump, 310- film feeding frame, 311- winding roller, 312- Sealing tape, 313-base, 314-third air cylinder, 315-lifting plate, 316-lifting column, 317-fixing frame, 318-film taking hole, 4-pressing mechanism, 401-second bracket, 402-fourth air cylinder, 403-heating box, 404-pressing piece, 405-heating wire, 406-adsorption box, 407-second vacuum pump, 408-vacuum pipe, 409-straight pipe, 410-grid, 411-molecular sieve, 412-activated carbon layer. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0043] like Figures 1 to 12 As shown, a packaging box sealing and pressing assembly in one embodiment of the present invention includes a conveyor belt 1, a filling mechanism 2, a sealing mechanism 3 and a pressing mechanism 4.

[0044] The shape of the conveyor belt 1 is as follows: Figure 1 As shown, the conveyor belt 1 is used to transport the moisture-proof cover so as to perform filling, film sealing and pressing operations on the moisture-proof cover, thereby improving the integrated production level of the moisture-proof cover, not only reducing the space occupied by the production equipment, but also greatly improving the production efficiency of the moisture-proof cover, ensuring that the moisture-proof cover can be produced efficiently.

[0045] like Figures 1 to 12 As shown, the feeding mechanism 2 is installed on the conveyor belt 1, and the feeding mechanism 2 is used to add desiccant into the moisture-proof cover.

[0046] The feeding mechanism 2 includes a first bracket 201, a first cylinder 202 is mounted on the first bracket 201, a first installation box 203 is connected to the free end of the first cylinder 202, the first installation box 203 is hollow inside, a plurality of filling tubes 204 are mounted on the first installation box 203, and a connecting tube 205 is connected to the first installation box 203. The desiccant enters the first installation box 203 through the connecting tube 205, and the desiccant in the first installation box 203 is added to the moisture-proof cover through the plurality of filling tubes 204, so as to realize the addition of the desiccant.

[0047] Preferably, the interior of the first installation box 203 is connected to the outside through a filling tube 204, and a connecting tube 205 is connected to the interior of the first installation box 203, and a control valve is installed on the connecting tube 205. When the control valve is opened, the desiccant can enter the first installation box 203 through the connecting tube 205, and then be added to the several moisture-proof covers on the conveyor belt 1 through several filling tubes 204, so as to realize the addition of the desiccant.

[0048] like Figures 1 to 12 As shown, the film sealing mechanism 3 is arranged on the upper side of the conveyor belt 1 and on one side of the filling mechanism 2. The film sealing mechanism 3 is used to add a sealing film into the moisture-proof cover so as to cover the desiccant in the moisture-proof cover.

[0049] The film sealing mechanism 3 includes a column 301, and a guide rail 302 is fixedly connected to the column 301, and the guide rail 302 is connected to the conveyor belt 1. The guide rail 302 is used to move the vacuum suction cup 308 in the horizontal direction, so that the vacuum suction cup 308 can absorb the sealing film and place the sealing film in the moisture-proof cover to cover the desiccant.

[0050] In addition, a guide rail motor 303 is installed on the column 301, and a lead screw is connected to the output end of the guide rail motor 303, and the lead screw is rotatably connected to the guide rail 302. When the guide rail motor 303 is running, the guide rail motor 303 can drive the lead screw to rotate.

[0051] like Figures 1 to 12 As shown, a film conveying mechanism is installed on the guide rail 302, and the film conveying mechanism can be used to suck the sealing film in the film taking hole 318 and then convey the sealing film into the moisture-proof cover.

[0052] The film feeding mechanism includes a side plate 304, which is threadedly connected to the screw rod. When the guide motor 303 is running, the guide motor 303 can rotate the screw rod. Since the screw rod is threadedly connected to the side plate 304, the screw rod can drive the side plate 304 to move so as to adjust the position of the side plate 304.

[0053] In addition, a mounting plate 305 is connected to the side plate 304, and the mounting plate 305 is used to mount the second cylinder 306 and the vacuum box 307. The second cylinder 306 is mounted on the mounting plate 305, and the second cylinder 306 is used to control the lifting and lowering of the vacuum box 307, so as to adjust the height of the vacuum suction cup 308, so that the vacuum suction cup 308 can absorb the sealing film from the film taking hole 318 or release the sealing film into the moisture-proof cover, so that the sealing film can cover the desiccant.

[0054] Specifically, the free end of the second cylinder 306 is connected to a vacuum box 307, and the vacuum box 307 is used to install a plurality of vacuum suction cups 308. The interior of the vacuum box 307 is hollow, and a plurality of vacuum suction cups 308 are connected to the lower end of the vacuum box 307. The interior of the vacuum box 307 is connected to the outside through the vacuum suction cups 308, and the plurality of vacuum suction cups 308 correspond to a plurality of filling tubes 204 respectively. When a negative pressure state is formed inside the vacuum box 307, the vacuum box 307 will generate suction at the port of the vacuum suction cup 308, and then the vacuum suction cup 308 can be used to suck the sealing film in the film taking hole 318.

[0055] In addition, a first air pump 309 is installed on the mounting plate 305, and the suction end of the first air pump 309 is arranged in the vacuum box 307. When the first air pump 309 is running, the first air pump 309 can extract the gas in the vacuum box 307, thereby forming a negative pressure state inside the vacuum box 307.

[0056] like Figures 1 to 12 As shown, a film preparation mechanism is installed on one side of the conveyor belt 1, and a sealing film suitable for the moisture-proof cover can be intercepted by the film preparation mechanism so that the sealing film can be used to cover the desiccant, thereby facilitating the fixing of the desiccant.

[0057] The film preparation mechanism includes a film feeding frame 310, and the film feeding frame 310 is used to install a winding roller 311 and a fixing frame 317. The film feeding frame 310 is installed with a winding roller 311, and the winding roller 311 is used to wind the sealing film residue.

[0058] In addition, a sealing tape 312 is wound around the winding roller 311 , and the sealing tape 312 can cover the desiccant in the moisture-proof cover.

[0059] Specifically, a base 313 is provided at the lower side of the film feeding frame 310, a third cylinder 314 is installed on the base 313, a lifting plate 315 is installed on the free end of the third cylinder 314, and a plurality of lifting columns 316 are installed on the lifting plate 315. When the third cylinder 314 is extended, the third cylinder 314 drives the lifting plate 315 and the plurality of lifting columns 316 to rise, so that one end of the lifting column 316 can pass through the through hole.

[0060] In addition, the film feeding frame 310 is provided with a plurality of through holes, and a plurality of lifting columns 316 are respectively inserted into the plurality of through holes. When the lifting columns 316 rise, the lifting columns 316 will protrude from the film feeding frame 310, and the protruding lifting columns 316 can intercept the sealing film adapted to the moisture-proof cover so as to cover the desiccant with the sealing film.

[0061] like Figures 1 to 12 As shown, a fixing frame 317 is installed on the film feeding frame 310, and a plurality of film taking holes 318 are provided on the fixing frame 317, and the film taking holes 318 correspond to the through holes. Through the cooperation between the lifting column 316 and the fixing frame 317, the sealing film adapted to the moisture-proof cover can be intercepted, so as to cover the desiccant in the moisture-proof cover.

[0062] like Figures 1 to 12 As shown, the pressing mechanism 4 is installed on the conveyor belt 1 and is arranged on the side of the film sealing mechanism 3 away from the conveyor belt 1. The pressing mechanism 4 is used to press the moisture-proof cover so as to fix the sealing film in the moisture-proof cover, thereby achieving the fixation of the desiccant.

[0063] The pressing mechanism 4 includes a second bracket 401, a fourth cylinder 402 is installed on the second bracket 401, a heating box 403 is connected to the free end of the fourth cylinder 402, a plurality of pressing pieces 404 are connected to the bottom of the heating box 403, the plurality of pressing pieces 404 respectively correspond to the plurality of filling tubes 204, and a heating wire 405 is installed in the heating box 403. When the heating wire 405 is running, the heating wire 405 can heat the pressing piece 404 to increase the temperature of the pressing piece 404. When the pressing piece 404 contacts the moisture-proof cover, the pressing piece 404 can heat the moisture-proof cover and soften the moisture-proof cover structure, and then the sealing film can be pressed in the moisture-proof cover to fix the desiccant.

[0064] In addition, an adsorption box 406 is installed on the second bracket 401, and an installation cavity and a purification cavity are arranged in the adsorption box 406. A second air pump 407 is arranged in the installation cavity, and an air extraction pipe 408 is connected to the second air pump 407. When the second air pump 407 is running, the second air pump 407 can absorb external gas through the air extraction pipe 408.

[0065] Specifically, one end of the air extraction pipe 408 outside the installation cavity is connected to a straight pipe 409, and a plurality of air suction heads are provided on the straight pipe 409, and the air suction heads correspond to the pressing piece 404. When the second air extraction pump 407 is running, the second air extraction pump 407 absorbs external gas through the air extraction pipe 408, the straight pipe 409 and the air suction heads, that is, when the pressing piece 404 presses the moisture-proof cover, the gas generated during the hot pressing of the moisture-proof cover can be absorbed to prevent the gas from polluting the environment.

[0066] In addition, the outlet of the second air pump 407 is arranged in the purification chamber, and a pair of grids 410 are arranged in the purification chamber. The grids 410 are arranged on the upper side of the outlet of the second air pump 407, and a molecular sieve 411 and an activated carbon layer 412 are respectively arranged on the pair of grids 410. The grids 410 and the molecular sieve 411 are both used to purify the gas and to adsorb harmful substances in the gas to prevent the harmful substances in the gas from polluting the environment.

[0067] Furthermore, an air outlet is provided on the adsorption box 406, and the purification chamber is connected to the outside through the air outlet, and the gas in the adsorption box 406 is discharged through the air outlet. A cover door is hingedly connected to the side wall of the adsorption box 406, and the cover door corresponds to the molecular sieve 411 and the activated carbon layer 412. The cover door can be opened to replace the grid 410 and the molecular sieve 411.

[0068] When in use, the moisture-proof cover to be processed is placed on the conveyor belt 1, and the conveyor belt 1 is used to transport the moisture-proof cover.

[0069] When the moisture-proof cover moves to the lower side of the first bracket 201, the conveyor belt 1 is stopped, and the first cylinder 202 is controlled to extend. The first cylinder 202 drives the first installation box 203 and the feeding tube 204 to move downward, and one end of the feeding tube 204 is inserted into the moisture-proof cover. The control valve on the connecting tube 205 is opened, and the desiccant enters the first installation box 203 through the connecting tube 205, and then enters the several moisture-proof covers on the conveyor belt 1 through the several filling tubes 204. When the desiccant is added, the control valve is closed, and the first cylinder 202 is controlled to shrink, so that the filling tube 204 is separated from the moisture-proof cover.

[0070] The conveyor belt 1 is controlled to run, and the conveyor belt 1 drives the moisture-proof cover to continue to move. When the moisture-proof cover moves to the lower side of the guide rail 302, the conveyor belt 1 is stopped. The third cylinder 314 is controlled to extend, and the third cylinder 314 drives the lifting plate 315 and a plurality of lifting columns 316 to rise, so that one end of the lifting column 316 passes through the through hole and protrudes from the film feeding frame 310. When the lifting column 316 protrudes, the lifting column 316 will squeeze the film sealing belt 312, and the sealing film that matches the moisture-proof cover can be intercepted by the mutual cooperation of the lifting column 316 and the fixing frame 317.

[0071] The guide rail motor 303 is controlled to operate so that the mounting plate 305, the vacuum box 307 and the vacuum suction cup 308 are moved to the upper side of the fixing frame 317. The second cylinder 306 is then controlled to extend so that the vacuum suction cups 308 are respectively inserted into the film taking holes 318. The first vacuum pump 309 is operated. The first vacuum pump 309 can extract the gas in the vacuum box 307, thereby forming a negative pressure state inside the vacuum box 307. The vacuum box 307 will generate suction at the port of the vacuum suction cup 308, thereby sucking the sealing film in the film taking hole 318.

[0072] The second cylinder 306 is controlled to shrink, and the guide motor 303 is controlled to operate, so that the vacuum suction cup 308 moves to the upper side of the moisture-proof cover again. The second cylinder 306 is controlled to extend, so that the vacuum suction cup 308 is close to the moisture-proof cover. The first vacuum pump 309 is stopped, and the sealing film enters the moisture-proof cover and covers the upper side of the desiccant.

[0073] The conveyor belt 1 is controlled to run, and when the moisture-proof cover moves to the lower side of the second bracket 401, the conveyor belt 1 is stopped. The fourth cylinder 402 is controlled to extend, and the heating wire 405 is controlled to run, and the operation of the heating wire 405 can heat the pressing member 404. When the pressing member 404 contacts the moisture-proof cover, the pressing member 404 can heat the moisture-proof cover and soften the moisture-proof cover structure, and then the sealing film can be pressed into the moisture-proof cover to fix the desiccant.

[0074] When the film is pressed and sealed, the second vacuum pump 407 is operated, and the second vacuum pump 407 absorbs the gas generated during the hot pressing of the moisture-proof cover through the vacuum pipe 408, the straight pipe 409 and the suction head to prevent the gas from polluting the environment. The gas enters the purification chamber and is purified by the grid 410 and the molecular sieve 411 to remove harmful substances in the gas. Finally, the gas is discharged from the adsorption box 406 through the gas outlet.

[0075] The present invention can improve the integrated production level of moisture-proof covers by arranging the feeding mechanism 2, the film sealing mechanism 3 and the pressing mechanism 4, which can not only reduce the space occupied by the production equipment, but also greatly improve the production efficiency of the moisture-proof covers and ensure that the moisture-proof covers can be produced efficiently.

[0076] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0077] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A packaging box sealing film pressing assembly, characterized in that: include: Conveyor belts; A feeding mechanism is installed on the conveyor belt, the feeding mechanism comprises a first bracket, a first cylinder is installed on the first bracket, a first installation box is connected to the free end of the first cylinder, the first installation box is hollow inside, a plurality of filling tubes are installed on the first installation box, and a connecting tube is connected to the first installation box; A film sealing mechanism is arranged on the upper side of the conveyor belt and on one side of the filling mechanism, the film sealing mechanism comprises a column, a guide rail is fixedly connected to the column, the guide rail is connected to the conveyor belt, a film feeding mechanism is installed on the guide rail, and a film preparation mechanism is installed on one side of the conveyor belt; The pressing mechanism is installed on the conveyor belt and is arranged on the side of the film sealing mechanism away from the conveyor belt.

2. A packaging box sealing film pressing assembly according to claim 1, characterized in that: The interior of the first installation box is connected to the outside through the filling pipe, the connecting pipe is connected to the interior of the first installation box, and a control valve is installed on the connecting pipe.

3. The packaging box sealing film pressing assembly according to claim 1, characterized in that: A guide rail motor is installed on the column, and a lead screw is connected to the output end of the guide rail motor. The lead screw is rotatably connected in the guide rail. The film feeding mechanism includes a side plate, and the side plate is threadedly connected to the lead screw.

4. A packaging box sealing film pressing assembly according to claim 3, characterized in that: The side plate is connected with a mounting plate, a second cylinder is mounted on the mounting plate, and a vacuum box is connected to a free end of the second cylinder.

5. The packaging box sealing film pressing assembly according to claim 4, characterized in that: The vacuum box is hollow inside, and a plurality of vacuum suction cups are connected to the lower end of the vacuum box. The inside of the vacuum box is connected to the outside through the vacuum suction cups, and the plurality of vacuum suction cups correspond to the plurality of filling tubes respectively.

6. A packaging box sealing film pressing assembly according to claim 5, characterized in that: A first vacuum pump is installed on the installation plate, and a suction end of the first vacuum pump is arranged in the vacuum box.

7. The packaging box sealing film pressing assembly according to claim 1, characterized in that: The film preparation mechanism comprises a film feeding frame, a winding roller is installed on the film feeding frame, and a film sealing belt is wound on the winding roller.

8. The packaging box sealing film pressing assembly according to claim 7, characterized in that: A base is provided at the lower side of the film feeding frame, a third cylinder is installed on the base, a lifting plate is installed at the free end of the third cylinder, and a plurality of lifting columns are installed on the lifting plate.

9. The packaging box sealing film pressing assembly according to claim 8, characterized in that: The film delivery frame is provided with a plurality of through holes, and the plurality of lifting columns are respectively inserted into the plurality of through holes. A fixing frame is installed on the film delivery frame, and the fixing frame is provided with a plurality of film taking holes, and the film taking holes correspond to the through holes.

10. The packaging box sealing film pressing assembly according to claim 1, characterized in that: The pressing mechanism includes a second bracket, a fourth cylinder is installed on the second bracket, a heating box is connected to the free end of the fourth cylinder, a plurality of pressing parts are connected to the bottom of the heating box, the plurality of pressing parts correspond to the plurality of filling tubes respectively, and a heating wire is installed in the heating box.

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