Packaging box film covering device

Abstract

The utility model relates to a packaging box film covering device which comprises a working table, a conveying mechanism for conveying packaging box paperboards is arranged on the working table, a cleaning assembly, a film covering assembly and a rolling assembly are sequentially arranged on the working table in the conveying direction of the conveying mechanism, the rolling assembly comprises a roller shaft, and a center pressing roller is fixedly connected to the middle of the roller shaft. The roller shaft is provided with a plurality of rotatable shaft sleeves on two sides of the central compression roller, the shaft sleeves are fixedly connected with shaft rods, the shaft rods are connected with rotating compression rollers, the shaft rods are lengthened one by one outwards from the central compression roller, and the adjacent compression rollers are partially overlapped. According to the packaging box film covering device, when the center pressing roller and the multiple pressing rollers are used for conveying on the conveying mechanism, film covering is conducted from the center to the edge in a rolling mode, bubbles generated during film covering are extruded out to the edge, the multiple pressing rollers conduct scattered rolling, a pressure leakage area is avoided, a plastic film is completely bonded to a paperboard, and the film covering quality is improved.

Description

Technical Field

[0001] The utility model relates to a film laminating device, in particular to a packaging box film laminating device. Background Art

[0002] Lamination is a major post-printing process, where a plastic film coated with adhesive is bonded to paper packaging material through heating and pressurization to create a paper-plastic hybrid product. It is a common post-printing process for packaging boxes. Printed products made from laminated packaging material have a smoother, brighter surface due to the additional layer of thin, transparent plastic film. This not only improves the gloss and durability of the printed product, extending the life of the packaging box, but also provides protection against moisture, water, stains, abrasion, folding, and chemical corrosion.

[0003] The existing packaging box laminating device has deviations in the flatness of the printed surface due to the printed surface adhering to the corrugated paper during lamination. The long pressure roller produces a bridge arch phenomenon during rolling, and bubbles or unbonded areas are generated during lamination. The bubbles cannot be expelled, affecting the lamination quality. Utility Model Content

[0004] The purpose of the utility model is to provide a packaging box laminating device, which is used to solve the problems of existing packaging box laminating devices, such as the deviation in the flatness of the printing surface caused by the printing surface attached to the corrugated paper, the bridge arch phenomenon generated by the long pressure roller during rolling, bubbles or unbonded areas generated during lamination, and the inability to expel the bubbles, thereby affecting the lamination quality.

[0005] In order to solve the above problems, the utility model provides a packaging box laminating device, including a workbench, on which a conveying mechanism for conveying packaging box cardboard is provided, and the workbench is provided with a cleaning component, a laminating component and a rolling component in sequence in the conveying direction of the conveying mechanism, and the rolling component includes a roller shaft, a central pressure roller is fixedly connected to the middle of the roller shaft, and the roller shaft is provided with a plurality of rotatable shaft sleeves on both sides of the central pressure roller, a shaft sleeve is fixedly connected to the shaft rod, and a rotating pressure roller is connected to the shaft rod, and the shaft rods are lengthened one by one from the central pressure roller outward, and adjacent pressure rollers partially overlap.

[0006] The packaging box laminating device provided by the utility model also has the following technical features:

[0007] Furthermore, a bracket is fixedly connected to the workbench, and an arc groove is opened on the bracket, and the roller slides elastically in the arc groove.

[0008] Furthermore, a connecting rod is rotatably connected to the roller shaft, the bracket is fixedly connected to the rotating shaft, the middle of the connecting rod is rotatably connected to the rotating shaft, the other end of the connecting rod is fixedly connected to a tension spring, and the other end of the tension spring is fixedly connected to the bracket.

[0009] Furthermore, the laminating assembly includes a raw material roller, a guide roller and a laminating roller. A central shaft is provided at the center of the raw material roller, and the central shaft is rotatably connected to the top of the bracket. The guide roller is located between the raw material roller and the laminating roller, and the laminating roller is rotatably connected to the bracket.

[0010] Furthermore, a laminating motor is fixedly connected to the bracket, and a driving shaft of the laminating motor is fixedly connected to the laminating roller.

[0011] Furthermore, a limiting ring is rotatably connected to the central shaft, the limiting ring contacts the end of the raw material roller, the limiting ring is fixedly connected to a positioning frame, the bottom of the positioning frame is rotatably connected to a positioning wheel, and the positioning wheel contacts the conveying mechanism.

[0012] Furthermore, the cleaning component includes a cleaning frame, which is rotatably connected to a hollow cleaning disc, a brush is fixedly connected to the bottom of the cleaning disc, a dust suction hole is opened on the gap between the brushes, and the cleaning disc is rotatably connected to a dust outlet pipe.

[0013] Furthermore, a cleaning motor is fixedly connected to the cleaning frame, a friction wheel is fixedly connected to the driving shaft of the cleaning motor, and the friction wheel rotates by friction with the cleaning disc.

[0014] The utility model has the following beneficial effects: the packaging box laminating device described in the present application utilizes a central pressing roller and multiple pressing rollers to roll the film from the center to the edge during transportation by a conveying mechanism, thereby squeezing out bubbles generated during laminating toward the edge. Multiple pressing rollers disperse the rolling pressure to avoid the generation of pressure leakage areas, so that the plastic film is completely adhered to the cardboard, thereby improving the laminating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an axonometric diagram of a packaging box laminating device according to an embodiment of the present invention;

[0016] Figure 2 This is a packaging box laminating device according to an embodiment of the utility model Figure 1 A magnified view of node A in the middle;

[0017] Figure 3 This is a packaging box laminating device according to an embodiment of the utility model Figure 1 Enlarged view of node B in the middle;

[0018] Figure 4 It is a right side cross-sectional schematic diagram of the packaging box laminating device according to an embodiment of the present invention.

[0019] (1- workbench, 2- conveying mechanism, 4- cleaning assembly, 5- laminating assembly, 6- rolling assembly, 7- bracket, 8- arc groove, 9- connecting rod, 10- rotating shaft, 11- tension spring, 12- limiting ring, 13- positioning frame, 14- positioning wheel, 41- cleaning frame, 42- cleaning disc, 43- brush, 44- dust suction hole, 45- dust outlet pipe, 46- cleaning motor, 47- friction wheel, 51- raw material roller, 52- guide roller, 53- laminating roller, 54- center shaft, 55- laminating motor, 61- roller shaft, 62- center pressure roller, 63- bushing, 64- shaft, 65- pressure roller) DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0021] like Figures 1 to 4 In the embodiment of the packaging box laminating device of the present invention shown, the packaging box laminating device includes a workbench 1, on which is provided a conveying mechanism 2 for conveying packaging box cardboard, and the workbench 1 is provided with a cleaning component 4, a laminating component 5 and a rolling component 6 in sequence in the conveying direction of the conveying mechanism 2, and the rolling component 6 includes a roller shaft 61, and a central pressure roller 62 is fixedly connected to the middle of the roller shaft 61, and the roller shaft 61 is provided with a plurality of rotatable shaft sleeves 63 on both sides of the central pressure roller 62, and a shaft rod 64 is fixedly connected to the shaft sleeve 63, and a rotating pressure roller 65 is connected to the shaft rod 64, and the shaft rod 64 is lengthened one by one from the central pressure roller 62 outward, and adjacent pressure rollers 65 partially overlap.

[0022] Specifically, the packaging box material to be coated is run on the workbench 1 by the conveying mechanism 2, and is coated by the coating component 5 after the dust is cleaned by the cleaning component 4. After the coating is completed, it runs to the roller 61 and is first rolled by the central pressure roller 62. It continues to run forward and is rolled by the outward-spreading pressure rollers 65 in turn, and is gradually rolled toward the edge of the packaging material to squeeze out the bubbles from the edge of the packaging material. Each pressure roller 65 rotates independently and can be rolled according to the flatness of the packaging material. There will be no bridge arch pressure leakage area, so that all the coating materials are adhered to the packaging box material, thereby improving the coating quality.

[0023] In one embodiment of the present application, preferably, a bracket 7 is fixedly connected to the workbench 1, and an arc groove 8 is provided on the bracket 7. The roller 61 elastically slides in the arc groove 8, so that the roller 61 drives the center pressure roller 62 to adapt to packaging box materials of various specifications and thicknesses, and the center pressure roller 62 always contacts the packaging box material.

[0024] In one embodiment of the present application, preferably, a connecting rod 9 is rotatably connected to the roller shaft 61, the bracket 7 is fixedly connected to the rotating shaft 10, the middle of the connecting rod 9 is rotatably connected to the rotating shaft 10, the other end of the connecting rod 9 is fixedly connected to a tension spring 11, and the other end of the tension spring 11 is fixedly connected to the bracket 9, so that the center pressure roller 62 is not easy to jump while pressing the packaging box material.

[0025] In one embodiment of the present application, preferably, the laminating assembly 5 includes a raw material roller 51, a guide roller 52 and a laminating roller 53. A central shaft 54 ​​is provided at the center of the raw material roller 51. The central shaft 54 ​​is rotatably connected to the top of the bracket 7. The guide roller 52 is located between the raw material roller 51 and the laminating roller 53. The laminating roller 53 is rotatably connected to the bracket 7 to keep the laminating material in a tensioned state on the bracket 7 at all times. The laminating roller 53 has heating and hot pressing functions to meet the temperature requirements of the laminating material.

[0026] In one embodiment of the present application, preferably, a laminating motor 55 is fixedly connected to the bracket 7, and a driving shaft of the laminating motor 55 is fixedly connected to the laminating roller 53 for driving the laminating roller 53 to rotate and drive the raw material roller 51 to release the material.

[0027] In one embodiment of the present application, preferably, a limiting ring 12 is rotatably connected to the central shaft 54, the limiting ring 12 abuts against the end of the raw material roller 51, the limiting ring 12 is fixedly connected to a positioning frame 13, the bottom of the positioning frame 13 is rotatably connected to a positioning wheel 14, the positioning wheel 14 is in contact with the conveying mechanism 2, specifically, after determining the coating width, the coating material of a fixed width is installed on the central shaft 54, and the position of the limiting ring 12 on the central shaft 54 ​​is adjusted so that the positioning wheel 14 of the positioning frame 13 clamps the edge of the packaging material, so that the packaging box material and the plastic film correspond when the coating assembly 5 is running.

[0028] In one embodiment of the present application, preferably, the cleaning assembly 4 includes a cleaning frame 41, a hollow cleaning disc 42 is rotatably connected to the cleaning frame 41, a brush 43 is fixedly connected to the bottom of the cleaning disc 42, a dust suction hole 44 is opened in the gap between the brushes 43, and the cleaning disc 42 is rotatably connected to a dust outlet pipe 45, which is connected to an external negative pressure vacuum cleaner for sucking away the dust between the brushes 43 or the dust cleaned by the packaging materials to avoid affecting the coating quality.

[0029] In one embodiment of the present application, preferably, a cleaning motor 46 is fixedly connected to the cleaning frame 41, and a friction wheel 47 is fixedly connected to the driving shaft of the cleaning motor 46. The friction wheel 47 rotates with friction with the cleaning disc 42 to drive the cleaning disc 42 to rotate, so that the brush 43 on the cleaning disc 42 rubs and cleans the dust on the packaging box material.

[0030] To sum up, the packaging box coating device in the above embodiment of the present invention, specifically, conveys the packaging box material to be coated to the cleaning rack 41 on the workbench 1 through the conveying mechanism 2, starts the cleaning motor 46, and the friction wheel 47 of the cleaning motor 46 drives the cleaning disc 42 to rotate, and the brush 43 cleans the dust on the packaging box, and makes the dust enter the dust outlet pipe 45 through the dust suction hole 44. After cleaning, it runs to the laminating roller 53 under the restriction of the positioning frame 13, and starts the laminating motor 55 to drive the laminating roller 53 to rotate, heats the coating material and rolls it into one with the packaging box material, and conveys it to the central pressing roller 62 through the conveying mechanism 2. It first rolls from the central pressing roller 62 to the edge of the packaging material through the diffusion pressing roller 65, so that the bubbles generated by the coating are gradually squeezed out to the edge; the independent rolling pressing roller 65 rolls according to the flatness of the packaging box material to avoid the pressure leakage part of the laminating roller 53 caused by the bridge arch, so that the coating is better fitted with the packaging box material, and the laminating quality is improved.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A packaging box laminating device, comprising a workbench, a conveying mechanism for conveying packaging box paperboard, and a cleaning component, a laminating component and a rolling component sequentially arranged on the workbench in the conveying direction of the conveying mechanism, characterized in that: The rolling assembly includes a roller shaft, a central pressure roller is fixedly connected to the middle of the roller shaft, and the roller shaft is provided with a plurality of rotatable sleeves on both sides of the central pressure roller. The sleeves are fixedly connected to a shaft rod, and the shaft rod is connected to a rotating pressure roller. The shaft rods are lengthened one by one from the central pressure roller outward, and adjacent pressure rollers partially overlap.

2. The packaging box laminating device according to claim 1, characterized in that: A bracket is fixedly connected to the workbench. An arc groove is formed on the bracket. The roller slides elastically in the arc groove.

3. The packaging box laminating device according to claim 2, characterized in that: The roller shaft is rotatably connected to a connecting rod, the bracket is fixedly connected to a rotating shaft, the middle of the connecting rod is rotatably connected to the rotating shaft, the other end of the connecting rod is fixedly connected to a tension spring, and the other end of the tension spring is fixedly connected to the bracket.

4. The packaging box laminating device according to claim 3, characterized in that: The laminating assembly includes a raw material roller, a guide roller and a laminating roller. A central shaft is provided at the center of the raw material roller, and the central shaft is rotatably connected to the top of the bracket. The guide roller is located between the raw material roller and the laminating roller, and the laminating roller is rotatably connected to the bracket.

5. The packaging box laminating device according to claim 4, characterized in that: The bracket is fixedly connected to a laminating motor, and a driving shaft of the laminating motor is fixedly connected to the laminating roller.

6. The packaging box laminating device according to claim 5, characterized in that: A limiting ring is rotatably connected to the central shaft, the limiting ring abuts against the end of the raw material roller, the limiting ring is fixedly connected to a positioning frame, the bottom of the positioning frame is rotatably connected to a positioning wheel, and the positioning wheel contacts the conveying mechanism.

7. The packaging box laminating device according to claim 1, characterized in that: The cleaning assembly includes a cleaning frame, which is rotatably connected to a hollow cleaning disc, a brush is fixedly connected to the bottom of the cleaning disc, a dust suction hole is opened in the gap between the brushes, and the cleaning disc is rotatably connected to a dust outlet pipe.

8. The packaging box laminating device according to claim 7, characterized in that: A cleaning motor is fixedly connected to the cleaning frame, a friction wheel is fixedly connected to the driving shaft of the cleaning motor, and the friction wheel rotates by friction with the cleaning disc.

Images