Energy-saving film packaging integrated device with adaptive function

The combination of self-adjusting guide rollers and film guide final rollers solves the problems of adaptability and energy saving in film packaging, realizes automatic stretching and adhesion of film to products, and improves packaging efficiency and energy saving effects.

CN120440395BActive Publication Date: 2025-10-10NINGBO HONGYAN PACKING MATERIAL
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Patent Information

Application Number
CN202510935662.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-08
Publication Date
2025-10-10
Estimated Expiration
2045-07-08

AI Technical Summary

Technical Problem

Existing film packaging technology has problems such as the film being unable to adapt to the product volume, resulting in waste or damage, low heat shrinkage efficiency, the sealing device requiring manual operation, and low film utilization.

Method used

A combination of self-adjusting guide rollers and film guide final rollers is used to achieve automatic stretching and adhesion of the film to the product through a self-adjusting mounting plate. The sealing device is controlled by a photoelectric sensor, which reduces the volume of the heat shrink chamber and reduces film consumables.

Benefits of technology

The film can adapt to the product volume, reduce waste and breakage, improve sealing reliability, reduce energy consumption, and reduce the frequency of film roll replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the field of film packaging, and discloses an energy-saving film packaging integrated device with self-adaptive function, which comprises a packaging support, product input and output conveyors installed on both sides of the center of the packaging support for conveying the products, a film roll guiding and conveying device for guiding and conveying the film, a film sealing device for heat sealing the film opening after the product is packaged, the film sealing device being installed on one side of the film roll guiding and conveying device, and a film shrinking device for heat shrinking the film after the product is packaged, the film shrinking device being installed on one side of the film sealing device. Compared with the prior art, the present application has the advantages of film thinning by stretching, product volume adaptation, film material consumption reduction, film close contact with the product, film roll replacement frequency reduction, film stretching in advance to close contact with the product, film heat shrinking chamber volume reduction, energy saving, etc.
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Description

Technical Field

[0001] The present invention relates to the field of film packaging, and in particular to an energy-saving film packaging integrated device with a self-adaptive function. Background Art

[0002] At present, in the field of film packaging technology, film rolls are mainly transported through fixed guide rollers, but there are significant shortcomings: first, the film stretching process is rigid, and the film thickness cannot be automatically adjusted according to the product volume, resulting in the film being too thick and wasting material when packaging small-volume products, and the film being too thin and easy to break when packaging large-volume products, affecting the reliability of the packaging; second, after the film is packaged, it needs to rely on a large heat shrinkage chamber for heat shrinkage treatment, which occupies a large space, has high energy consumption (such as the heating wire needs to be heated for a long time), and has low shrinkage efficiency; third, the film guide and sealing links lack linkage adjustment, and the sealing device (such as the heating rod) needs to be manually operated or fixed-stroke driven, which is difficult to adapt to different product sizes, resulting in loose sealing or the risk of air leakage; fourth, the film rolls are frequently replaced, and due to the low film utilization rate (such as the inability to adaptively stretch), production costs and maintenance frequency are increased.

[0003] Therefore, in order to solve the above problems, the present invention provides an energy-saving film packaging integrated device with self-adaptive function. Summary of the Invention

[0004] In response to the deficiencies in the prior art, the present invention provides an energy-saving integrated film packaging device with an adaptive function, which has the advantages of being stretched and thinned to adapt to the volume of the product, reducing film consumables, keeping the film close to the product, reducing the frequency of replacing the film roller, stretching the film in advance to fit the product, reducing the volume of the film heat shrinkage chamber, and saving energy. It solves a series of problems during film packaging, such as the film cannot adapt to the volume of the product, resulting in the film being too thin and easy to break or too thick and wasteful, the film cannot be close to the product, requiring a larger shrinkage chamber, high energy consumption, and frequent replacement of the film roller.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an energy-saving film packaging integrated device with adaptive function, comprising:

[0006] A packaging support, and a product input conveyor belt and a product output conveyor belt installed on both sides of the center of the packaging support, for conveying packaged products;

[0007] A film coil guide and conveying device, the film coil guide and conveying device is used for guiding and transmitting the film, the film coil guide and conveying device includes a guide and conveying device mounting bracket fixed to the upper end of the packaging bracket, a self-adjusting mounting plate is rotatably mounted on the guide and conveying device mounting bracket, the ends of the self-adjusting mounting plate are respectively rotatably mounted with self-adjusting guide rollers and film guide final rollers, the self-adjusting guide rollers and film guide final rollers are used for guiding and transmitting the film, a film stretching self-adjusting assembly is installed below the self-adjusting mounting plate, the film stretching self-adjusting assembly is located below the self-adjusting mounting plate, and the film stretching self-adjusting assembly is used for regulating the distance between the self-adjusting guide roller and the film guide final roller;

[0008] The film sealing device is used for heat-sealing the film opening after product packaging, and the film sealing device is installed on one side of the film coil guide conveyor;

[0009] The film shrinking device is used for heat shrinking the film after product packaging. The film shrinking device is installed on one side of the film sealing device.

[0010] Preferably, a film roller is rotatably mounted on the upper end of the guide conveying device mounting bracket, a guide roller bracket is fixedly provided on the guide conveying device mounting bracket between the film roller and the self-adjusting mounting plate, a film guide starting roller and a horizontal guide roller are rotatably mounted on both ends of the guide roller bracket, a film fixing rod is rotatably mounted between the two side walls in the packaging bracket, the film roll wound on the film roller is guided and transmitted in sequence through the guide roller bracket, the horizontal guide roller, the self-adjusting guide roller and the film guide ending roller, and the end of the film roll is fixed on the film fixing rod.

[0011] Preferably, both side walls in the packaging bracket are provided with packaging bracket grooves, and a mounting block guide rod is fixedly connected between the upper and lower side walls in the packaging bracket groove, and a film fixing rod mounting block is slidingly sleeved on the outside of the mounting block guide rod, and the film fixing rod mounting block is placed in the packaging bracket groove, and a film fixing rod tension spring is connected between the upper end of the film fixing rod mounting block and the top wall in the packaging bracket groove, and the film fixing rod tension spring is sleeved on the outside of the mounting block guide rod.

[0012] Preferably, the film stretching self-adjusting assembly includes a mounting seat fixed to the guide conveying device mounting bracket by bolts, the end and middle of the mounting seat are fixedly connected to the limit plate, and the end faces of the opposite sides of the limit plates on both sides are provided with limit plate grooves, and a sliding rod mounting slider is vertically slidably installed in the limit plate groove, and a sliding rod is rotatably connected between the sliding rod mounting sliders in the limit plate grooves on both sides, and the sliding rod and the self-adjusting mounting plate are slidably connected, and the upper and lower end faces of the sliding rod mounting slider are respectively connected to the upper and lower side walls in the limit plate groove with a self-adjusting mounting plate contraction hydraulic rod and a self-adjusting mounting plate lifting hydraulic rod.

[0013] Preferably, a self-adjusting mounting plate sliding groove is provided on the back side of the self-adjusting mounting plate, and the film guide final roller and the self-adjusting mounting plate are screwed together by threads, and a self-adjusting guide roller mounting block is slidably installed in the self-adjusting mounting plate sliding groove, and the self-adjusting guide roller and the self-adjusting guide roller mounting block are screwed together by threads, and a guide roller lifting hydraulic rod and a guide roller retraction hydraulic rod are respectively connected between the two ends of the self-adjusting guide roller mounting block and the end side walls in the self-adjusting mounting plate sliding groove, and a lifting hydraulic pipe is connected between the self-adjusting mounting plate retraction hydraulic rod connected to the upper end of the sliding rod mounting slider in the limit plate groove and the guide roller lifting hydraulic rod, and a retraction hydraulic pipe is connected between the self-adjusting mounting plate lifting hydraulic rod and the guide roller retraction hydraulic rod connected to the lower end of the sliding rod mounting slider in the limit plate groove.

[0014] Preferably, the film sealing device includes a sealing rotating rod rotatably mounted on both side walls of the packaging bracket, a sealing driving cylinder is installed on one side of the sealing rotating rod, the sealing driving cylinder and the packaging bracket are rotatably connected, the output end of the limiting plate slot is rotatably connected to the sealing rotating rod, a sealing mounting rod is fixedly connected between the ends of the sealing rotating rods on both sides of the packaging bracket, side sealing mounting rods are fixedly connected on both sides of the sealing mounting rod, sealing heating rods are installed on both sides of the bottom of the sealing mounting rod, and side sealing heating rods are fixedly connected to the bottom center of the side sealing mounting rod, the side sealing mounting rods on both sides are symmetrically arranged, and the sealing heating rods on both sides of the bottom of the sealing mounting rod are symmetrically arranged.

[0015] Preferably, a photoelectric sensor is installed on the upper end of the packaging support, and the photoelectric sensor is located between the product input conveyor belt and the product output conveyor belt and close to the end of the product input conveyor belt.

[0016] Preferably, the film shrinking device comprises a film heat shrinking chamber installed at the upper end of the packaging support, and a plurality of film heat shrinking heating wires are installed on both side walls and the top wall of the film heat shrinking chamber.

[0017] Compared with the prior art, the present invention provides an energy-saving film packaging integrated device with adaptive function, which has the following beneficial effects:

[0018] 1. The self-adjusting guide roller and the film guide final roller are installed on the self-adjusting mounting plate, and the self-adjusting mounting plate is rotatably mounted on the guide conveyor device mounting bracket. Therefore, when the product to be packaged squeezes the film, the film will first push the self-adjusting guide roller and the self-adjusting mounting plate to rotate. The rotation of the self-adjusting mounting plate also drives the film guide final roller to move upward, and the film between the film guide final roller and the film fixing rod is stretched.

[0019] 2. When the product to be packaged is wrapped with film, the film is stretched and thinned, and the larger the product volume, the thinner the film. However, the upper limit of the film stretching is the upper limit of the distance the self-adjusting guide roller moves. To avoid the film being too thin and causing the packaging to be easily damaged, the product is packaged with the stretched film. In this process, the film can be as close to the product to be packaged as possible, so that it can adapt to the product quickly, and can reduce film consumables. With the same film, more products can be packaged, and the frequency of changing the film roller is reduced.

[0020] 3. After the product to be packaged is completely wrapped by the stretched film, it is transported to the film heat shrink chamber through the product output conveyor belt. The film is heated by the energized film heat shrink heating wire. In this process, the film is completely shrunk and adheres closely to the surface of the product to be packaged. Because the film has been stretched and adheres closely to the product, the space volume of the film heat shrink chamber can be reduced, the time of passing through the film heat shrink chamber can be shortened, and the effect of energy saving can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the packaging device of the present invention;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the film coil guide and conveyor device of the present invention;

[0023] Figure 3 This is a schematic diagram of the film fixing rod installation structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the installation structure of the film stretching self-adjusting component of the present invention;

[0025] Figure 5 This is a schematic diagram of the installation structure of the self-adjusting guide roller and the film guide final roller of the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the film stretching self-adjusting component of the present invention;

[0027] Figure 7 This is a schematic diagram of the installation structure of the film sealing device and the film shrinking device of the present invention;

[0028] Figure 8 It is a schematic diagram of a partial three-dimensional structure of the film sealing device of the present invention.

[0029] In the figure: 1. Product input conveyor belt; 2. Packaging bracket; 3. Product output conveyor belt; 4. Film sealing device; 5. Film shrinking device; 6. Film coil guide conveyor; 7. Film winding roller; 8. Guide roller bracket; 9. Film guide start roller; 10. Guide conveyor mounting bracket; 11. Self-adjusting mounting plate; 12. Film fixing rod; 13. Self-adjusting guide roller; 14. Film guide end roller; 15. Horizontal guide roller; 16. Film fixing rod tension spring; 17. Packaging bracket slot; 18. Film fixing rod mounting block; 19. Mounting block guide rod; 20. Film stretching self-adjusting assembly; 21. Self-adjusting mounting plate slide Groove; 22. Self-adjusting guide roller mounting block; 23. Guide roller lifting hydraulic rod; 24. Guide roller retraction hydraulic rod; 25. Lifting hydraulic pipe; 26. Self-adjusting mounting plate retraction hydraulic rod; 27. Limit plate groove; 28. Sliding rod mounting slider; 29. ​​Self-adjusting mounting plate lifting hydraulic rod; 30. Limit plate; 31. Mounting seat; 32. Retraction hydraulic pipe; 33. Sliding rod; 34. Film heat shrinking chamber; 35. Film heat shrinking electric heating wire; 36. Sealing rotating rod; 37. Sealing drive cylinder; 38. Side sealing heating rod; 39. Sealing mounting rod; 40. Sealing heating rod; 41. Side sealing mounting rod; 42. Photoelectric sensor. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] As introduced in the background technology, there are deficiencies in the existing technology. In order to solve the above technical problems, this application proposes an energy-saving film packaging integrated device with adaptive function.

[0032] In a typical embodiment of the present application, Figure 1-8 As shown, an energy-saving film packaging integrated device with adaptive function includes:

[0033] The packaging support 2, and the product input conveyor belt 1 and the product output conveyor belt 3 installed on both sides of the center of the packaging support 2 are used for conveying the packaged products.

[0034] It also includes a film coil guiding and conveying device 6, which is used for guiding and transmitting the film. The film coil guiding and conveying device 6 includes a guiding and conveying device mounting bracket 10 fixed to the upper end of the packaging bracket 2, and a self-adjusting mounting plate 11 is rotatably mounted on the guiding and conveying device mounting bracket 10. The ends of the self-adjusting mounting plate 11 are respectively rotatably mounted with self-adjusting guide rollers 13 and film guide end rollers 14. The self-adjusting guide rollers 13 and film guide end rollers 14 are used for guiding and transmitting the film. A film stretching self-adjusting component 20 is installed below the self-adjusting mounting plate 11. The film stretching self-adjusting component 20 is located below the self-adjusting mounting plate 11. The film stretching self-adjusting component 20 is used for regulating the distance between the self-adjusting guide roller 13 and the film guide end roller 14.

[0035] like Figure 1 As shown, the film coil guide conveying device 6 is installed between the product input conveyor belt 1 and the product output conveyor belt 3. The product to be packaged is placed from the product input conveyor belt 1, conveyed to the position between the product input conveyor belt 1 and the product output conveyor belt 3 through the product input conveyor belt 1, and then packaged with film through the film coil guide conveying device 6. After the packaging is completed, the product is conveyed through the product output conveyor belt 3.

[0036] A film roller 7 is rotatably mounted on the upper end of the above-mentioned guide conveying device mounting bracket 10, and a guide roller bracket 8 is fixedly provided on the guide conveying device mounting bracket 10 between the film roller 7 and the self-adjusting mounting plate 11. The two ends of the guide roller bracket 8 are respectively rotatably mounted with a film guide starting roller 9 and a horizontal guide roller 15. A film fixing rod 12 is rotatably mounted between the two side walls in the packaging bracket 2. The film coil wound on the film roller 7 is guided and transmitted in sequence through the guide roller bracket 8, the horizontal guide roller 15, the self-adjusting guide roller 13 and the film guide end roller 14, and the end of the film coil is fixed on the film fixing rod 12.

[0037] The film stretching self-adjusting assembly 20 in the above comprises a mounting seat 31 fixed on the guide conveying device mounting support 10 by bolts, the end and the middle of the mounting seat 31 are fixedly connected with limiting plates 30, the opposite side end faces of the limiting plates 30 on the two sides are provided with limiting plate grooves 27, sliding rod mounting sliding blocks 28 are vertically and slidingly installed in the limiting plate grooves 27, a sliding rod 33 is rotationally connected between the sliding rod mounting sliding blocks 28 in the limiting plate grooves 27 on the two sides, the sliding rod 33 is slidingly connected with the self-adjusting mounting plate 11, the upper and lower end faces of the sliding rod mounting sliding blocks 28 are respectively connected with the self-adjusting mounting plate contraction hydraulic rod 26 and the self-adjusting mounting plate jacking hydraulic rod 29 between the upper and lower side walls in the limiting plate grooves 27, the back face of the self-adjusting mounting plate 11 is provided with a self-adjusting mounting plate sliding groove 21, the film guide terminal roller 14 is threadedly connected with the self-adjusting mounting plate 11, the self-adjusting guide roller mounting block 22 is slidingly installed in the self-adjusting mounting plate sliding groove 21, the self-adjusting guide roller 13 is threadedly connected with the self-adjusting guide roller mounting block 22, the two ends of the self-adjusting guide roller mounting block 22 are respectively connected with the guide roller jacking hydraulic rod 23 and the guide roller contraction hydraulic rod 24 between the end side walls in the self-adjusting mounting plate sliding groove 21, the self-adjusting mounting plate contraction hydraulic rod 26 connected with the upper end of the sliding rod mounting sliding block 28 in the limiting plate groove 27 is connected with the guide roller jacking hydraulic rod 23, the self-adjusting mounting plate jacking hydraulic rod 29 connected with the lower end of the sliding rod mounting sliding block 28 in the limiting plate groove 27 is connected with the guide roller contraction hydraulic rod 24, the jacking hydraulic pipe 25 is connected between the self-adjusting mounting plate contraction hydraulic rod 26 and the guide roller jacking hydraulic rod 23, the contraction hydraulic pipe 32 is connected between the self-adjusting mounting plate jacking hydraulic rod 29 and the guide roller contraction hydraulic rod 24.

[0038] When the products to be packaged are packaged by the film, the products to be packaged are first conveyed by the product input conveying belt 1, and when the products to be packaged are conveyed to between the product input conveying belt 1 and the product output conveying belt 3, the products to be packaged first contact the film roll between the film guide terminal roller 14 and the film fixing rod 12, and the products to be packaged are extruded by the film roll under the conveying pushing action of the product input conveying belt 1 and the product output conveying belt 3, until the film roll completely covers the products to be packaged;

[0039] The above is the basic process of film packaging, it is worth mentioning that the self-adjusting guide roller 13 and the film guide terminal roller 14 are installed on the self-adjusting mounting plate 11, and the self-adjusting mounting plate 11 is rotationally installed on the guide conveying device mounting support 10, therefore, when the products to be packaged extrude the film, the film first pushes the self-adjusting guide roller 13 and the self-adjusting mounting plate 11 to rotate, the rotation of the self-adjusting mounting plate 11 also drives the film guide terminal roller 14 to move upward, and the film between the film guide terminal roller 14 and the film fixing rod 12 is stretched;

[0040] The rotation of the self-adjusting mounting plate 11 synchronously drives the sliding rod 33 slidably connected thereto to move upward, and the sliding rod mounting slider 28 connected by rotation of the sliding rod 33 moves upward along the limit plate groove 27. In this process, the self-adjusting mounting plate retraction hydraulic rod 26 above the sliding rod mounting slider 28 is squeezed, and the hydraulic oil in the self-adjusting mounting plate retraction hydraulic rod 26 is transported to the guide roller jacking hydraulic rod 23 through the jacking hydraulic pipe 25. The telescopic end of the guide roller jacking hydraulic rod 23 is jacked up, thereby pushing the self-adjusting guide roller mounting block 22 and the self-adjusting guide roller 13 installed thereon to move in a direction away from the film guide final roller 14;

[0041] Similarly, in this process, the self-adjusting mounting plate lifting hydraulic rod 29 below the sliding rod mounting slider 28 is stretched, and a negative pressure vacuum chamber is formed in the self-adjusting mounting plate lifting hydraulic rod 29. The hydraulic oil in the guide roller contraction hydraulic rod 24 is extracted into the self-adjusting mounting plate lifting hydraulic rod 29 through the contraction hydraulic pipe 32. The guide roller contraction hydraulic rod 24 contracts, thereby stretching the self-adjusting guide roller mounting block 22 and the self-adjusting guide roller 13 mounted thereon to move in a direction away from the film guide final roller 14.

[0042] As the self-adjusting guide roller 13 moves away from the film guide final roller 14, the self-adjusting guide roller 13 stretches the film and also drives the film coil wound on the film winding roller 7 to be fed;

[0043] The guide roller lifting hydraulic rod 23 and the guide roller retracting hydraulic rod 24 are provided to increase the upper limit of the moving distance of the self-adjusting guide roller mounting block 22, thereby improving the stretching effect of the self-adjusting guide roller 13 and the film guide final roller 14 on the film;

[0044] Therefore, when the product to be packaged is wrapped by the film, the film is stretched and thinned, and the larger the product volume, the thinner the film. However, the upper limit of the film stretching is the upper limit of the distance the self-adjusting guide roller 13 moves, so as to avoid the film being too thin and causing the package to be easily damaged.

[0045] The product is packaged by the stretched film. During this process, the film can be as close to the product to be packaged as possible, so that it can adapt to the product quickly, and can reduce film consumables. With the same film, more products can be packaged, and the replacement frequency of the film roller 7 is reduced.

[0046] In addition, both side walls of the packaging bracket 2 are provided with a packaging bracket groove 17, and a mounting block guide rod 19 is fixedly connected between the upper and lower side walls of the packaging bracket groove 17, and a film fixing rod mounting block 18 is slidably sleeved on the outside of the mounting block guide rod 19. The film fixing rod mounting block 18 is placed in the packaging bracket groove 17, and a film fixing rod tension spring 16 is connected between the upper end of the film fixing rod mounting block 18 and the top wall of the packaging bracket groove 17. The film fixing rod tension spring 16 is sleeved on the outside of the mounting block guide rod 19.

[0047] Through the above features, when the film is stretched between the film guide final roller 14 and the film fixing rod 12, the film fixing rod 12 and the film fixing rod mounting block 18 connected thereto can move upward along the packaging bracket groove 17, and the film fixing rod stretching spring 16 is used to reset the film fixing rod 12, which can prevent the product to be packaged from squeezing the film and causing damage to the film, and also prevent the film between the film guide final roller 14 and the film fixing rod 12 from being overstretched, thereby ensuring the packaging effect.

[0048] The film packaging device also includes a film sealing device 4, which is used for heat-sealing the film opening after product packaging. The film sealing device 4 is installed on one side of the film coil guide conveying device 6, and the film sealing device 4 includes a sealing rotating rod 36 rotatably installed on the two side walls of the packaging bracket 2, and a sealing driving cylinder 37 is installed on one side of the sealing rotating rod 36. The sealing driving cylinder 37 is rotatably connected to the packaging bracket 2, and the output end of the limiting plate slot 27 is rotatably connected to the sealing rotating rod 36. A sealing mounting rod 39 is fixedly connected between the ends of the sealing rotating rod 36 on both sides of the packaging bracket 2. Side sealing mounting rods 41 are fixedly connected on both sides of the sealing mounting rod 39, and sealing heating rods 40 are installed on both sides of the bottom of the sealing mounting rod 39. The bottom center of the side sealing mounting rod 41 is fixedly connected to the side sealing heating rod 38. The side sealing mounting rods 41 on both sides are symmetrically arranged, and the sealing heating rods 40 on both sides of the bottom of the sealing mounting rod 39 are symmetrically arranged.

[0049] After the product to be packaged is completely wrapped by the film, the sealing drive cylinder 37 contracts and drives the sealing rotary rod 36 to rotate until the sealing heating rod 40 and the side sealing heating rod 38 contact the film with three openings on the product to be packaged, thereby heat-sealing the three openings of the product to be packaged. After the heat sealing is completed, the product to be packaged continues to be transported by the product output conveyor 3;

[0050] A photoelectric sensor 42 is installed at the upper end of the packaging support 2 . The photoelectric sensor 42 is located between the product input conveyor belt 1 and the product output conveyor belt 3 and close to the end of the product input conveyor belt 1 .

[0051] Therefore, when the photoelectric sensor 42 detects that the product to be packaged is completely covered by the film and leaves the product input conveyor 1, the sealing drive cylinder 37 drives the sealing rotary rod 36 to rotate to perform the film heat sealing operation;

[0052] The photoelectric sensor 42 detects the presence of the product to be packaged by emitting an infrared or laser beam, triggering a switch signal (NPN / PNP type, 24VDC) that is transmitted to the PLC control unit. The PLC performs signal filtering, interlock determination, and delay processing based on preset logic. After generating a drive command, it activates the solenoid valve, switches the flow of compressed air, and drives the piston of the sealing drive cylinder 37, thereby completing the sealing operation.

[0053] The above process is an existing process of controlling the cylinder drive through a sensor, and the present invention does not provide any redundant description.

[0054] The film packaging device also includes a film shrinking device 5, which is used for heat shrinking the film after product packaging. The film shrinking device 5 is installed on one side of the film sealing device 4. The film shrinking device 5 includes a film heat shrinking chamber 34 installed on the upper end of the packaging bracket 2. Several film heat shrinking heating wires 35 are installed on the two side walls and the top wall of the film heat shrinking chamber 34.

[0055] After the product to be packaged is completely wrapped by the stretched film, it is transported to the film heat shrink chamber 34 through the product output conveyor belt 3, and the film is heated by the energized film heat shrink heating wire 35. In this process, the film is completely shrunk and adheres tightly to the surface of the product to be packaged. Because the film has been stretched and adheres tightly to the product, the spatial volume of the film heat shrink chamber 34 can be reduced, and the time of passing through the film heat shrink chamber 34 can be shortened, which has an energy-saving effect.

[0056] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving film packaging integrated device with adaptive function, characterized by: include, A packaging support (2), and a product input conveyor belt (1) and a product output conveyor belt (3) installed on both sides of the center of the packaging support (2) for conveying packaged products; A film coil guide conveying device (6), the film coil guide conveying device (6) is used for guiding and transmitting the film, the film coil guide conveying device (6) includes a guide conveying device mounting bracket (10) fixed to the upper end of the packaging bracket (2), a self-adjusting mounting plate (11) is rotatably mounted on the guide conveying device mounting bracket (10), and the ends of the self-adjusting mounting plate (11) are respectively rotatably mounted with self-adjusting guide rollers (13) and film guide end rollers (14), the self-adjusting guide rollers (13) and film guide end rollers (14) are used for guiding and transmitting the film, a film stretching self-adjusting component (20) is installed below the self-adjusting mounting plate (11), the film stretching self-adjusting component (20) is located below the self-adjusting mounting plate (11), and the film stretching self-adjusting component (20) is used for regulating the distance between the self-adjusting guide roller (13) and the film guide end roller (14); A film sealing device (4), the film sealing device (4) is used for heat-sealing the film opening after product packaging, and the film sealing device (4) is installed on one side of the film coil guide conveying device (6); A film shrinking device (5), the film shrinking device (5) is used for heat shrinking the film after product packaging, and the film shrinking device (5) is installed on one side of the film sealing device (4); The film stretching self-adjusting assembly (20) includes a mounting seat (31) fixed to the guide conveying device mounting bracket (10) by bolts, the end and the middle of the mounting seat (31) are fixedly connected to the limit plate (30), the end faces of the two side limit plates (30) on the opposite side are provided with a limit plate groove (27), a sliding rod mounting slider (28) is vertically slidably installed in the limit plate groove (27), a sliding rod (33) is rotatably connected between the sliding rod mounting sliders (28) in the two side limit plate grooves (27), the sliding rod (33) and the self-adjusting mounting plate (11) are slidably connected, and the upper and lower end faces of the sliding rod mounting slider (28) are respectively connected to the upper and lower side walls in the limit plate groove (27) with a self-adjusting mounting plate retraction hydraulic rod (26) and a self-adjusting mounting plate lifting hydraulic rod (29); A self-adjusting mounting plate sliding groove (21) is provided on the back of the self-adjusting mounting plate (11), the film guide final roller (14) is screwed to the self-adjusting mounting plate (11) via a threaded connection, a self-adjusting guide roller mounting block (22) is slidably mounted in the self-adjusting mounting plate sliding groove (21), the self-adjusting guide roller (13) and the self-adjusting guide roller mounting block (22) are screwed to each other via a threaded connection, and the two ends of the self-adjusting guide roller mounting block (22) and the two side walls of the end portion in the self-adjusting mounting plate sliding groove (21) are A guide roller lifting hydraulic rod (23) and a guide roller retraction hydraulic rod (24) are respectively connected therebetween; a lifting hydraulic pipe (25) is connected between the self-adjusting mounting plate retraction hydraulic rod (26) connected to the upper end of the sliding rod mounting slider (28) in the limit plate slot (27) and the guide roller lifting hydraulic rod (23); and a retraction hydraulic pipe (32) is connected between the self-adjusting mounting plate lifting hydraulic rod (29) connected to the lower end of the sliding rod mounting slider (28) in the limit plate slot (27) and the guide roller retraction hydraulic rod (24); The film sealing device (4) comprises a sealing rotating rod (36) rotatably mounted on the two side walls of the packaging support (2), a sealing driving cylinder (37) is mounted on one side of the sealing rotating rod (36), the sealing driving cylinder (37) is rotatably connected to the packaging support (2), the output end of the limiting plate slot (27) is rotatably connected to the sealing rotating rod (36), a sealing mounting rod (39) is fixedly connected between the ends of the sealing rotating rod (36) on both sides of the packaging support (2), side sealing mounting rods (41) are fixedly connected on both sides of the sealing mounting rod (39), sealing heating rods (40) are mounted on both sides of the bottom of the sealing mounting rod (39), and the bottom center of the side sealing mounting rod (41) is fixedly connected to the side sealing heating rod (38), the side sealing mounting rods (41) on both sides are symmetrically arranged, and the sealing heating rods (40) on both sides of the bottom of the sealing mounting rod (39) are symmetrically arranged.

2. The energy-saving film packaging integrated device with adaptive function according to claim 1, characterized in that: A film roller (7) is rotatably mounted on the upper end of the guide conveying device mounting bracket (10), a guide roller bracket (8) is fixedly arranged on the guide conveying device mounting bracket (10) between the film roller (7) and the self-adjusting mounting plate (11), a film guide starting roller (9) and a horizontal guide roller (15) are rotatably mounted on both ends of the guide roller bracket (8), a film fixing rod (12) is rotatably mounted between the two side walls inside the packaging bracket (2), the film coil wound on the film roller (7) is guided and transmitted in sequence through the guide roller bracket (8), the horizontal guide roller (15), the self-adjusting guide roller (13) and the film guide ending roller (14), and the end of the film coil is fixed on the film fixing rod (12).

3. The energy-saving film packaging integrated device with adaptive function according to claim 2, characterized in that: Both side walls of the packaging bracket (2) are provided with a packaging bracket groove (17), and a mounting block guide rod (19) is fixedly connected between the upper and lower side walls of the packaging bracket groove (17), and a film fixing rod mounting block (18) is slidably sleeved on the outside of the mounting block guide rod (19), and the film fixing rod mounting block (18) is placed in the packaging bracket groove (17), and a film fixing rod tension spring (16) is connected between the upper end of the film fixing rod mounting block (18) and the top wall of the packaging bracket groove (17), and the film fixing rod tension spring (16) is sleeved on the outside of the mounting block guide rod (19).

4. The energy-saving film packaging integrated device with adaptive function according to claim 1, characterized in that: A photoelectric sensor (42) is installed at the upper end of the packaging support (2), and the photoelectric sensor (42) is located between the product input conveyor belt (1) and the product output conveyor belt (3) and close to the end of the product input conveyor belt (1).

5. The energy-saving film packaging integrated device with adaptive function according to claim 1, characterized in that: The film shrinking device (5) comprises a film heat shrinking chamber (34) mounted on the upper end of the packaging support (2), and a plurality of film heat shrinking electric heating wires (35) are mounted on both side walls and the top wall of the film heat shrinking chamber (34).

Citation Information

Patent Citations

  • Film packaging machine and method of packaging content storage container

    JP2023146750A

  • Shrink wrapping machine

    JP3181464U