CN217865034U

CN217865034U - Paper film laminating equipment

Info

Publication number: CN217865034U
Application number: CN202220595279.2U
Authority: CN
Inventors: 傅秋佳; 沈永水
Original assignee: Zhejiang Dahua Technology Co Ltd
Current assignee: Zhejiang Dahua Technology Co Ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-11-22
Anticipated expiration: 2032-03-18

Abstract

The application relates to the technical field of packaging, in particular to paper film laminating equipment, this equipment includes: a roller for rollingly conveying the film; the top cover assembly is arranged on the roller, at least part of the top cover assembly can move relative to the outer wall surface of the roller, so that at least part of the top cover assembly protrudes out of the outer wall surface of the roller, and the film on the roller is jacked up in the direction away from the outer wall surface of the roller, so that the length ratio of the film to the paperboard is larger than 1; the driving component is connected with the top cover component and is used for driving the top cover component to move; when the driving component drives part of the top cover component to jack up and protrude out of the outer wall surface of the roller, the length ratio of the film to the paperboard is larger than 1; when the driving component drives at least part of the top cover component to return to the state of not protruding out of the outer wall surface of the roller, the length ratio of the film to the paper board is equal to 1. The application has the advantages that: the equal-length film covering mode and the unequal-length film covering mode are switched at will without stopping, and the product adaptability is wide.

Description

Paper film laminating equipment

Technical Field

The application relates to the technical field of packaging, in particular to a paper film laminating device.

Background

When the paper film laminating package is applied to product packaging with a certain height, the film needs to be longer than the paper in the paper film laminating production stage. The paper-film covered package and the product package are schematically shown in fig. 17, wherein two ends of the film are adhered to the adhesive area, but the length of the film is larger than that of the paperboard, so that the articles can be placed between the film and the paperboard. Currently, partial lamination of paper films in the industry is realized by adopting a film suction roller to realize film paper lamination with a film paper ratio of 1. For equipment and production processes that can achieve unequal length film coating, e.g., a film to paper ratio greater than 1, the following two schemes are commonly employed:

the first scheme is a mode of conveying belt speed difference, the stacking of the films is realized by utilizing the speed difference of two conveying belts, and the equipment such as a film suction roller and the like which are commonly used in the industry is completely abandoned, so that a packaging manufacturer is required to completely rebuild a new production line equipment, and the mode of the film suction roller which is commonly used in the industry and is adopted on the equal-length film covering is abandoned, so that the consumption is huge.

The second scheme is that on the basis of the mode of film suction rollers in the industry, projections and grooves are respectively arranged on an upper roller and a lower roller by utilizing a convex-concave principle, and films with unequal lengths between films and paperboards are coated by convex-concave matching. However, the uneven-length film covering is realized by the concave-convex matching of the two film absorbing rollers, when the equal-length film covering mode needs to be executed, a production line needs to be stopped to replace a traditional roller, huge production equipment consumption is caused, and the production efficiency is reduced.

Therefore, how to design the non-isometric film coating scheme not only falls on the design direction of the film suction roller in the industry adopted by a packaging manufacturer, but also can solve the problem of non-stop replacement when the mode is switched between the traditional isometric film coating mode and the traditional unequal length film coating mode, and becomes a key technology for restricting the upgrading iteration of the packaging industry.

Disclosure of Invention

Based on this, it is necessary to provide a paper film laminating apparatus which can switch between an equal-length laminating mode and an unequal-length laminating mode without stopping the apparatus and which is adaptable to industrial production processes.

In view of the above technical problems, the present application provides the following technical solutions:

a paper laminating apparatus for laminating a film to a paperboard, said paper laminating apparatus comprising:

a roller for rollingly conveying a film;

the top cover assembly is arranged on the roller, at least part of the top cover assembly can move relative to the outer wall surface of the roller, so that at least part of the top cover assembly protrudes out of the outer wall surface of the roller, and the film on the roller is jacked up in the direction away from the outer wall surface of the roller, so that the length ratio of the film to the paperboard is larger than 1;

the driving assembly is connected with the top cover assembly and is used for driving the top cover assembly to move; when the driving component drives part of the top cover component to jack up and protrude out of the outer wall surface of the roller, the top cover component is in a jacking state, so that the length ratio of the film to the paperboard is larger than 1; when the driving component drives at least part of the top cover component to return to the state of not protruding out of the outer wall surface of the roller, the top cover component is in a retracted state, so that the length ratio of the film to the paperboard is equal to 1.

In one embodiment, an opening is formed in the outer wall surface of the roller, and the opening is communicated with the inside of the roller and extends along the axial direction of the roller; the top cover assembly is arranged at the opening, and at least part of the top cover assembly can extend out of the opening and protrude out of the outer wall surface of the roller under the driving of the driving assembly so as to jack up the film.

In one embodiment, the top cover assembly can rotate relative to the roller to partially extend out of the opening and protrude out of the outer wall surface of the roller; alternatively, the top cover assembly can move along the radial direction of the roller to extend out of the opening and protrude out of the outer wall surface of the roller.

In one embodiment, the top cover assembly can rotate relative to the roller; wherein, the cap assembly includes: the cover body is arranged at the opening and is rotationally connected with the roller, so that part of the cover body can rotate relative to the roller under the driving of the driving assembly and protrudes out of the outer wall surface of the roller to jack up the film at the opening.

In one embodiment, the top cover assembly can move along the radial direction of the roller; wherein, the top cap assembly includes: the cover body is arranged at the opening; one end of the connecting rod is connected with the driving assembly, and the other end of the connecting rod extends along the radial direction of the roller and is connected with the cover body; the driving assembly drives the cover body to completely extend out of the opening along the radial direction of the roller through the connecting rod so as to jack up the film at the opening.

In one embodiment, the paper film laminating equipment further comprises an adjusting component, the adjusting component is connected with the top cover component, and when the top cover component is in a jacking state, the adjusting component is used for changing the height of the top cover component protruding out of the outer wall surface of the roller so as to adjust the length ratio of the film to the paperboard.

In one embodiment, the paper film laminating equipment further comprises an adsorption piece and a cover piece, the top cover assembly and the roller are provided with exhaust holes, and the adsorption piece adsorbs the film to the outer surface of the top cover assembly and the outer wall surface of the roller through the exhaust holes; the cover plate is positioned in the roller and can be driven by the driving assembly to cut off the adsorption air flow formed by the adsorption piece at the exhaust hole corresponding to the cover plate.

In one embodiment, the cap assembly comprises: the cover body is used for jacking up the thin film;

one end of the connecting rod is connected with the driving assembly, and the other end of the connecting rod extends along the radial direction of the roller and is connected with the cover body; the cover plate is positioned in the roller and arranged on the connecting rod, and can be abutted against the inner wall of the roller along with the movement of the connecting rod so as to cut off the adsorption air flow formed by the adsorption piece at the air exhaust hole corresponding to the cover plate.

In one embodiment, the driving assembly is provided with a first track groove and a second track groove; one end of the top cover component is limited in the first track groove and moves in the first track groove under the driving of the driving component, so that at least part of the other end of the top cover component is jacked up and protrudes out of the outer wall surface of the roller; at least part of the cover plate is limited in the second track groove and can move in the second track groove under the driving of the driving assembly, so that the cover plate is abutted against the inner wall of the roller and the adsorption air flow formed by the adsorption piece at the exhaust hole is cut off.

In one embodiment, the lid assembly moves synchronously or asynchronously with the flap.

Compared with the prior art, the paper film laminating equipment provided by the application has the advantages that by arranging the roller, the top cover assembly and the driving assembly, when the driving assembly drives at least part of the top cover assembly to move relative to the outer wall surface of the roller and protrude out of the outer wall surface, the film on the roller can be jacked up towards the direction of the outer wall surface far away from the roller, so that the length ratio of the film to the paperboard is larger than 1, and a film laminating mode with different lengths is realized; when the driving component drives the top cover component to return to the retracted state (namely, the top cover component does not protrude out of the outer wall surface of the roller), the film is not jacked and extended, and thus the ratio of the length of the film coated with the paper board to the length of the paper board is equal to 1, so that the paper film coating equipment is switched to an equal-length film coating mode. It can be seen that the paper membrane laminating equipment that this application provided can realize the free switching of isometric tectorial membrane mode and isometric tectorial membrane mode of non-under the state of not shutting down through mutually supporting between roller, top cap subassembly and the drive assembly, and the adaptation in the original production line of inhaling the membrane roller in industry need not to shut down and switches the tectorial membrane mode for production efficiency obviously improves.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a paper film laminating apparatus according to an embodiment of the present application.

Fig. 2 is an assembly schematic diagram of a roller, a top cover assembly and a driving assembly provided in the first embodiment of the present application.

Fig. 3 is a partially enlarged view of a in fig. 2.

Fig. 4 is a schematic view of the cap assembly of fig. 2 in a raised state.

FIG. 5 is an assembly view of the roller, the cover assembly and the driving assembly provided in the second embodiment of the present application.

Fig. 6 is a partially enlarged view of fig. 5.

Fig. 7 is a schematic view of the cap assembly of fig. 5 in a raised state.

Fig. 8 is a schematic structural view of the roller of fig. 5 without the roller.

Fig. 9 is an assembly schematic diagram of a roller, a top cover assembly and a driving assembly provided in a third embodiment of the present application.

Fig. 10 is a schematic view of the cap assembly of fig. 9 in a raised state.

Fig. 11 is a partially enlarged view of fig. 10.

Fig. 12 is a schematic view of the drum of fig. 9 without the drum.

Fig. 13 is an assembly view of a roller, a cap assembly and a driving assembly according to a fourth embodiment of the present application.

Fig. 14 is a schematic view of the cap assembly of fig. 13 in a raised state.

Fig. 15 is a partially enlarged schematic view of fig. 14.

Fig. 16 is a production process flow diagram of the paper film laminating apparatus provided by the present application.

Fig. 17 is a schematic view of a paper film laminated product.

FIG. 18 is a schematic representation of the film provided herein after being extended and laminated to paperboard.

Reference numerals are as follows: 100. a paper film laminating device; 101. a film; 102. a paperboard; 10. a roller; 11. an opening; 12. a barrel; 13. a barrel cover; 14. a second vent hole; 20. a cap assembly; 21. a first exhaust port; 22. a cover body; 23. a connecting rod; 24. a channel; 25. connecting sleeves; 251. a chute; 26. a limiting rod; 30. a drive assembly; 31. a drive unit; 311. a first driving member; 312. a second driving member; 313. a third driving member; 314. a fourth drive member; 32. a transmission unit; 32a, a first transmission unit; 32b, a second transmission unit; 32c, a third transmission unit; 32d, a fourth transmission unit; 32e, a fifth transmission unit; 321. a track groove; 321a, a first track groove; 321b, a second track groove; 322. a crank link assembly; 3221. a first link; 3222. a second link; 3223. a telescopic connecting rod; 323. a first drive wheel; 324. a first driven wheel; 325. a driven shaft; 326. a second driving wheel; 327. a second driven wheel; 328. a third driving wheel; 329. a third driven wheel; 40. an adjustment assembly; 40a, an automatic adjusting component; 40b, a manual adjustment assembly; 41. a fifth driving member; 42. a locking member; 50. an adsorbing member; 60. a cover sheet; 60a first coversheet; 60b, a second cover sheet; 61. a body; 62. a connecting portion; 70. a delivery assembly; 71. a first drum; 72. a second drum; 73. a third drum; 80. a slitting assembly; 81. a slitting knife; 90. a transfer assembly; 91. a support body; 92. and (4) a conveyor belt.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The use of the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like in the description of the present application is for purposes of illustration only and is not intended to represent the only embodiment.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 15, the present application provides a paper film laminating apparatus 100, wherein the paper film laminating apparatus 100 is used for laminating a film 101 and a paperboard 102 to obtain a paper film package capable of packaging a product. Here, the product may be a stereoscopic monitor or the like.

The paper film laminating equipment 100 comprises a roller 10, a top cover assembly 20 and a driving assembly 30, wherein the roller 10 is used for conveying a film 101 in a rolling manner; the top cover assembly 20 is mounted on the roller 10, and at least part of the top cover assembly 20 can move relative to the outer wall surface of the roller 10, so that at least part of the top cover assembly 20 protrudes out of the outer wall surface of the roller 10, and the film 101 on the roller 10 is jacked up in the direction away from the outer wall surface of the roller 10, so that the length ratio of the film 101 to the paperboard 102 is greater than 1; the driving assembly 30 is connected to the cap assembly 20 for driving the movement of the cap assembly 20. When the roller 10 conveys the film 101, when the driving assembly 30 drives a part of the top cover assembly 20 to jack up and protrude out of the outer wall surface of the roller 10, the top cover assembly 20 is in a jacking state, so that the film 101 on the outer wall surface of the roller 10 is supported in a direction away from the roller 10, the film 101 is elongated, the length ratio of the film 101 to the paperboard 102 is greater than 1, and therefore the covering processing of the film 101 and the paperboard 102 with different lengths is realized; when the driving assembly 30 drives at least a portion of the cover assembly 20 to return to a position not protruding beyond the outer wall surface of the roller 10, the cover assembly 20 is in a retracted state, so that the film 101 on the outer wall surface of the roller 10 is not supported by the cover assembly 20, and thus the length ratio of the film 101 to the cardboard 102 is equal to 1, thereby realizing the laminating process of the film 101 and the cardboard 102 with equal length.

It can be understood that, when the driving assembly 30 drives at least part of the cap assembly 20 to move relative to the outer wall surface of the roller 10 and protrude out of the outer wall surface, the film 101 on the roller 10 can be jacked away from the outer wall surface of the roller 10, so that the length ratio of the film 101 to the paperboard 102 is greater than 1, thereby realizing a film coating mode with different lengths; when the driving assembly 30 drives the cap assembly 20 to return to the retracted state (i.e. the cap assembly 20 does not protrude from the outer wall surface of the roller 10), the film 101 is not lifted and extended, so that the ratio of the length of the film 101 to the length of the paper board 102, which are covered with the paper board 102, is equal to 1, and at this time, the paper film covering apparatus 100 is switched to the equal-length film covering mode. It can be seen that the paper film laminating equipment 100 provided by the application can realize free switching between the equal-length film laminating mode and the unequal-length film laminating mode in a non-stop state through mutual matching among the roller 10, the top cover assembly 20 and the driving assembly 30, is adapted to the production line of the original film suction roller 10 in the industry, does not need to be stopped to switch the film laminating mode, and enables the production efficiency to be obviously improved.

In some embodiments, such as shown in fig. 1 to 15, an opening 11 is opened on the outer wall surface of the roller 10, and the opening 11 is communicated with the inside of the roller 10 and extends along the axial direction of the roller 10; the top cover assembly 20 is disposed at the opening 11, and at least a portion of the top cover assembly 20 can extend out of the opening 11 and protrude out of the outer wall surface of the roller 10 under the driving of the driving assembly 30, so as to jack up the film 101. When the film laminating mode needs to be switched to the non-equal-length film laminating mode, the driving assembly 30 drives the top cover assembly 20 to at least partially extend out of the opening 11, so that the film 101 at the opening 11 is jacked up and extended, and the length ratio of the film 101 to the paperboard 102 is larger than 1; when the equal-length film covering mode needs to be switched, the driving assembly 30 drives the cap assembly 20 to return to the initial state, that is, return to the inside of the opening 11 and not protrude out of the outer wall surface of the roller 10, so that the film 101 on the outer wall surface of the roller 10 is not supported by the cap assembly 20, and the length ratio of the film 101 to the paperboard 102 is equal to 1.

As shown in fig. 2, the roll 10 has a cylindrical shape, and the outer wall of the roll 10 can be understood as the outer surface of the roll 10 contacting the film 101. The length of the opening 11 extending in the axial direction of the roll 10 may be set according to the width of the film 101. The roller 10 includes a cylinder 12 and a cover 13, the cover 13 is provided at one end of the cylinder 12, and the opening 11 penetrates the cylinder 12 in the axial direction.

As shown in fig. 1 to 15, the paper film laminating apparatus 100 further includes an adsorbing member 50 and a cover sheet 60, the top cover assembly 20 and the roller 10 are provided with exhaust holes, and the adsorbing member 50 adsorbs the film 101 to the outer surface of the top cover assembly 20 and the outer wall surface of the roller 10 through the exhaust holes; the cover sheet 60 is positioned in the roller 10 and can cut off the adsorption air flow formed by the adsorption member 50 at the exhaust hole corresponding to the cover sheet 60 under the driving of the driving assembly 30. For example, in one embodiment, as shown in fig. 2 to 4, the top cover assembly 20 is provided with a first vent hole 21, the roller 10 is provided with a second vent hole 14, and the film 101 is adsorbed on the outer surface of the top cover assembly 20 and the outer wall of the roller 10 by the adsorbing member 50 through the first vent hole 21 and the second vent hole 14.

In one embodiment, referring to fig. 2, 5 or 9, the suction member 50 is an air pump or a vacuum pump, and after the suction member 50 is activated, air is continuously sucked into the roller 10 through the first exhaust hole 21 and the second exhaust hole 14, so that the inside of the roller 10 forms a negative pressure with respect to the outside of the roller 10, thereby sucking the film 101 to the outer wall of the roller 10. Meanwhile, the drum 10 generates suction force to the film 101 through the second discharge holes 14 so that the drum 10 can suck the film 101 and transfer it. Of course, other devices capable of generating suction force can be used for the suction member 50. In addition, the roller 10 can also adopt a suction roller, and the suction piece 50 and the roller 10 form the suction roller together, so that the use of separate parts is reduced, and the installation process and the processing cost are reduced.

In one embodiment, as shown in fig. 2, the plurality of first exhaust holes 21 and the plurality of second exhaust holes 14 are uniformly spaced. Therefore, the adsorption force on the surface of the top cover assembly 20 and the surface of the roller 10 is uniform, so that the adsorption force on a plurality of positions of the film 101 is uniform, and the wrinkle of the film 101 caused by uneven stress is prevented.

In one embodiment, as shown in fig. 2 to 4 or fig. 5 to 8, the cover sheets 60 are provided in one piece, and are provided as the first cover sheet 60a, the first cover sheet 60a corresponds to the top cover assembly 20, so that when the top cover assembly 20 is switched to the jacking state, the driving assembly 30 drives the first cover sheet 60a to move along the radial direction of the roller 10 to be attached to the inner wall surface of the roller 10 at the opening 11, no air flow passes through the opening 11 of the roller 10, and thus the air flow is blocked from passing through the first air vent 21, so that the suction of the suction member 50 to the film 101 through the first air vent 21 is cut off.

With reference to fig. 2 to 4, the cover sheets 60 are disposed in a plurality of pieces, the cover sheet 60 corresponding to the top cover assembly 20 is a first cover sheet 60a, the cover sheet 60 corresponding to the roller 10 is a second cover sheet 60b, and the first cover sheet 60a and the second cover sheet 60b are preferably arranged in a cylindrical shape along the circumferential direction of the roller 10 to fully utilize the space inside the roller 10. When the driving component 30 drives the second cover sheet 60b to adhere to the inner wall of the roller 10, the air flow passing through the second air vent 14 can be cut off as well, of course, in this embodiment, the top cover component 20 is in a jacking state, the second cover sheet 60b moves towards the roller 10 to partially adhere to the inner wall of the roller 10, so as to weaken the adsorption force of the outer wall of the roller 10, so that the top cover component 20 jacks up and extends the film 101, of course, a gap is still reserved between the second cover sheet 60b and the second air vent 14, so that the outer wall of the roller 10 has a certain adsorption force, and the extended film 101 can be adsorbed and transferred.

As shown in fig. 2 to 8 or 13 to 15, the cover sheet 60 includes a body 61 and a connecting portion 62, the body 61 extends along the axial direction of the roller 10, the body 61 is disposed at one end of the connecting portion 62, the other end of the connecting portion 62 is connected with the driving assembly 30, and the driving assembly 30 drives the body 61 to move along the radial direction of the roller 10 through the connecting portion 62.

Referring to fig. 1 to 15, the cover assembly 20 includes a cover 22 and a connecting rod 23, wherein the cover 22 is disposed at the opening 11, and one end of the cover 22 is connected to the driving assembly 30, and the other end of the cover is connected to the cover 22. The driving assembly 30 drives the connecting rod 23 to move, and then the cover 22 connected with the connecting rod 23 can be pushed to protrude out of the outer wall surface of the roller 10 in the direction away from the roller 10.

Preferably, the cover 22 is arc-shaped, the center of the arc-shaped cover 22 coincides with the center of the cylinder 12, and the arc-shaped cover 22 is located on the circumference of the roller 10, so that when the cover 22 is in the retracted state, the cover can be spliced with the roller 10 to form a whole, that is, a complete peripheral surface of the roller 10 is formed, the structure is more compact, and the space utilization rate is improved.

In the present application, the first cover sheet 60 and the lid 22 may be provided separately or integrally. For example, as shown in fig. 2 to 8 or 13 to 15, the first cover sheet 60a is provided separately from the lid body 22; alternatively, as shown in fig. 9 to 12, the first cover sheet 60a is provided integrally with the lid body 22.

Specifically, as shown in fig. 9 to 12, the body 61 is disposed between the cover 22 and the connecting rod 23, and the cover 22 and the body 61 may be integrally formed, so that when the driving assembly 30 drives the connecting rod 23 to move, the cover 22 and the body 61 can be synchronously driven to move along the radial direction of the roller 10, and so that the first cover sheet 60a and the cover 22 move synchronously, only one set of driving assembly 30 needs to be disposed, and when the driving assembly 30 drives the cover 22 to move along the radial direction of the roller 10 to a proper height, the first cover sheet 60a moves synchronously to abut against the inner wall of the roller 10 to be attached, so as to cut off the suction force on the surface of the cover 22, thereby simplifying the structure of the driving assembly 30, and further reducing the material cost and the processing cost. Of course, in other embodiments, the cover 22 and the body 61 may be formed separately and assembled together on the connecting rod 23.

It is emphasized that, as shown in fig. 9 to 12, when the first cover sheet 60a is disposed between the cover 22 and the connecting bar 23, the first cover sheet 60a is disposed spaced apart from the cover 22 to form the channel 24; wherein, the first air vent 21 is opened on the cover body 22, when the top cover assembly 20 is in a jacking state, the first cover sheet 60a abuts against the inner wall of the roller 10 at the opening 11 along with the movement of the connecting rod 23, so that the first cover sheet 60a is attached to the inner wall of the roller 10, thereby cutting off the communication between the first air vent 21 and the channel 24, preventing the air from flowing between the first air vent 21 and the channel 24, preventing the surface of the cover body 22 from forming air suction, further cutting off the adsorption force of the adsorption piece 50 on the film 101 at the opening 11, and folding the extended film 101 on the outer surface of the cover body 22 due to the self gravity, when the paper film is overlaid, forming a paper film product as shown in fig. 18.

In some embodiments, as shown in fig. 2 to 15, the driving assembly 30 is provided with a track groove 321, at least a portion of the cover sheet 60 is limited in the track groove 321 and limited in the track groove 321, and the cover sheet 60 can move in the track groove 321 under the driving of the driving assembly 30, so that the cover sheet 60 abuts against the inner wall of the roller 10 and cuts off the adsorption air flow formed by the adsorption element 50 at the corresponding air outlet. In addition, the top cover assembly 20 further includes a limiting rod 26, one end of the limiting rod 26 is limited in the track groove 321 and moves in the track groove 321 under the driving of the driving assembly 30, and the other end of the limiting rod 26 is connected with the connecting rod 2323, so that the other end of the connecting rod 23 drives at least part of the cover body 22 to jack up and protrude out of the outer wall surface of the roller 10; through setting up gag lever post 26 to the motion orbit of injecing connecting rod 23 prevents the roof subassembly 20 and motion error in the operation process.

For example, in an embodiment, as shown in fig. 3 or fig. 6, the driving assembly 30 is provided with a first track groove 321a and a second track groove 321b; one end of the limiting rod 26 of the driving assembly 30 is limited in the first track groove 321a, and can move in the first track groove 321a under the driving of the driving assembly 30, so that the connecting rod 23 drives the cover 22 to jack up the film 101 along the radial direction of the roller 10; one end of the connecting portion 62 of the cover sheet 60 is limited in the second track groove 321b, and is driven by the driving assembly 30 to move in the second track groove 321b, so that the body 61 of the cover sheet 60 abuts against the inner wall of the roller 10 and cuts off the adsorbing airflow formed by the adsorbing member 50 at the exhaust hole. In another embodiment, as shown in fig. 11, the cover sheet 60 and the cover 22 are disposed on the connecting rod 23, one end of the connecting rod 23 is limited in the track groove 321 and moves in the track groove 321 under the driving of the driving assembly 30, so as to drive the cover 22 and the cover sheet 60 at the other end of the connecting rod 23 to move along the radial direction of the roller 10, and when the film 101 is jacked up, the cover sheet 60 abuts against the inner wall of the roller 10 at the same time, so as to cut off the air flow passing through the channel 24 and the first exhaust port. For another example, as shown in fig. 15, in another embodiment, a track groove 321 is formed on the driving assembly 30, one end of the connecting portion 62 of the cover sheet 60 is limited in the track groove 321, and the driving assembly 30 drives the connecting portion to move in the track groove 321, so that the body 61 of the cover sheet 60 abuts against the inner wall of the roller 10 at the opening 11 and cuts off the adsorbing airflow formed by the adsorbing element 50 at the first exhaust hole 21.

With reference to fig. 2 to 12, the top cover assembly 20 further includes a connecting sleeve 25, one end of the connecting sleeve 25 is connected to the driving assembly 30, and the other end extends along the radial direction of the roller 10, one end of the connecting rod 23 extends into the connecting sleeve 25 and is interactively connected to the connecting sleeve 25, and by the arrangement of the connecting sleeve 25, when the connecting rod 23 moves along with the limiting rod 26, the connecting sleeve 25 supports the connecting rod 23, so that the connecting rod 23 moves more stably. Of course, in other embodiments, the connecting sleeve 25 and the connecting rod 23 can be combined to form a telescopic rod.

In the present application, the cap assembly 20 can be rotated with respect to the drum 10 such that a portion of the cap assembly 20 protrudes out of the opening 11 and protrudes out of the outer wall surface of the drum 10, or the cap assembly 20 can be moved in a radial direction of the drum 10 to protrude out of the opening 11 and protrude out of the outer wall surface of the drum 10. The following is a specific example of how the cap assembly 20 protrudes from the outer wall surface of the drum 10 to elongate the film 101.

In some embodiments, as shown in fig. 2 to 11, one end of the connecting rod 23 is limited on the driving assembly 30 and can move relative to the driving assembly 30, the other end extends along the radial direction of the roller 10, and the cover 22 is disposed on one end of the connecting rod 23 away from the driving assembly 30, when the driving assembly 30 drives the connecting rod 23 to move, the cover 22 is driven to move along the radial direction of the roller 10 towards the direction away from the roller 10, so that the cover 22 extends out through the opening 11 and jacks up the film 101 along the direction perpendicular to the axis of the roller 10, thereby extending the film 101.

In another embodiment, as shown in fig. 13 to 15, one side of the cover 22 is rotatably connected to the roller 10 at the opening 11, and the other side of the cover 22 is connected to one end of the connecting rod 23 along the width direction of the cover 22, and the other end of the connecting rod 23 is connected to the driving assembly 30, so that the driving assembly 30 drives the connecting rod 23 to move, so that the connecting rod 23 drives the one side of the cover 22 to rotate and lift up by an angle θ in a direction away from the roller 10, so that at least part of the cover 22 protrudes out of the outer wall of the roller 10 to jack up the film 101, thereby extending the film 101. Wherein, the rotary connection between one side of the cover 22 and the roller 10 may be a hinge, a pin connection, or the like.

As shown in fig. 2 to 15, the driving assembly 30 includes a driving unit 31 and a transmission unit 32, the transmission unit 32 is connected to the driving unit 31, and the top cover assembly 20 and the cover sheet 60 are respectively connected to the transmission unit 32. The driving unit 31 drives the cover assembly 20 and the cover sheet 60 to move correspondingly through the transmission unit 32, for example, as shown in fig. 2 to 15, the cover assembly 20 and the cover sheet 60 move synchronously or asynchronously. For example, as in fig. 2-4, or 9-15, the cap assembly 20 moves synchronously with the flap 60, as in fig. 5-8, the cap assembly 20 moves asynchronously with the flap 60. In the present application, the structures of the driving unit 31 and the transmission unit 32 are various, and specific examples are given below, but of course, the specific structural arrangement of the driving unit 31 and the transmission unit 32 is not limited to only the following embodiments.

In one embodiment, as shown in fig. 3, the driving unit 31 includes a first driving member 311, and the transmission unit 32 includes a first transmission unit 32a and a second transmission unit 32b; the top cover assembly 20 is connected with the first transmission unit 32a and moves under the driving of the first transmission unit 32 a; the cover sheet 60 is connected to the second driving unit 32b and moves by the second driving unit 32 b. Specifically, the first track groove 321a is opened on the first transmission unit 32a, and the second track groove 321b is opened on the second transmission unit 32 b. The first transmission unit 32a and the second transmission unit 32b are provided independently of each other.

In one embodiment, the transmission unit 32 may be configured as a gear transmission, a belt transmission, or a crank and rocker structure. Illustratively, the first transmission unit 32a and the second transmission unit 32b are provided as a gear transmission structure; and the gear transmission structure is taken as an explanation object, specifically explaining the connection relationship and action principle between the first transmission unit 32a and the second transmission unit 32b and the driving unit 31, and between the top cover assembly 20 and the cover sheet 60.

As shown in fig. 3, the first transmission unit 32a includes a first driving wheel 323, a first driven wheel 324 and a driven shaft 325, and the first driving wheel 323 is disposed on the output shaft of the first driving member 311. The driven shaft 325 is rotatably mounted in the roll drum 10, and in particular, rotatably mounted on the drum cover 13. The axis of the driven shaft 325 may be coincident with or parallel to the axis of the drum 10. The first driven pulley 324 is fixed to the driven shaft 325 and is engaged with the first driving pulley 323. The first tracking groove 321a is formed on the first driven wheel 324, and one end of the first tracking groove 321a is close to the rotation center of the first driven wheel 324, and the other end extends in a direction away from the rotation center of the first driven wheel 324. One end of the connecting rod 23 is limited on the first track groove 321 a. Thus, when the first driving member 311 drives the first driving wheel 323 to rotate, the first driving wheel 323 drives the first driven wheel 324 to move, and the first driven wheel 324 drives the connecting rod 23 to move in the first track groove 321a, so that the connecting rod 23 moves along the radial direction of the roller 10. In this way, the connecting rod 23 drives the cover 22 to extend out of the opening 11 along the radial direction of the roller 10 and lift up the film 101 at the opening 11.

As shown in fig. 3, the second transmission unit 32b includes a second driving wheel 326 and a second driven wheel 327, the second driving wheel 326 is fixed on the output shaft of the first driving member 311, so as to share a power source with the first driving wheel 323, so that the second driving wheel 326 and the first driving wheel 323 move synchronously, and thus the cover assembly and the cover sheet move synchronously. A second driven wheel 327 is fixed to the driven shaft 325 so as to share one shaft with the first driven wheel 324, and the second driven wheel 327 is engaged with the second driving wheel 326. Thus, the use of parts can be reduced, the processing technology and the cost can be reduced, and the structure of the whole transmission unit 32 can be compact; meanwhile, the first driven wheel 324 and the second driven wheel 327 can be more synchronously moved by sharing the single driven shaft 325.

The second tracking groove 321b is formed in the second driven wheel 327, and one end of the second tracking groove 321b is close to the rotation center of the second driven wheel 327 and the other end extends in a direction away from the rotation center of the second driven wheel 327. One end of the connection portion 62 of the cover sheet 60 is retained in the second track groove 321 b. When the first driving element 311 drives the second driving wheel 326 to rotate, the second driving wheel 326 drives the second driven wheel 327 to move, the second driven wheel 327 drives the connecting portion 62 of the cover sheet 60 to move in the second track groove 321b, so that the body 61 of the cover sheet 60 moves along the radial direction of the roller 10, and thus the cover sheet 60 cuts off or releases the suction airflow passing through the first exhaust hole 21 and/or the second exhaust hole 14.

Of course, in this embodiment, the second driven wheel 327 shares the same driven shaft 325 with the first driven wheel 324 for use. It can be understood that the second driven wheel 327 and the first driven wheel 324 may not share the same shaft, and only a rotating shaft needs to be separately provided for the second driven wheel 327 at this time, which is similar to the driven shaft 325 in the first transmission unit 32a, and therefore, the detailed description thereof is omitted.

In one embodiment, as shown in fig. 5 to 8, the cap assembly 20 and the cover sheet 60 are driven by the driving unit 31 to perform asynchronous movement, i.e., the movement of the cap assembly 20 and the cover sheet 60 is controlled independently.

In the present embodiment, as shown in fig. 6, the driving unit 31 includes a second driving member 312 and a third driving member 313, and the transmission unit 32 includes a third transmission unit 32c and a fourth transmission unit 32d; the second driving member 312 is connected to the third transmission unit 32c, and the third driving member 313 is connected to the fourth transmission unit 32 d. Preferably, the second driving element 312 and the third driving element 313 are oppositely arranged at two sides. So set up, can avoid the interference on both movements. The top cover assembly 20 is connected with the third transmission unit 32c and moves under the driving of the third transmission unit 32 c; the cover sheet 60 is connected to the fourth driving unit 32d and moves by the fourth driving unit 32 d. In this manner, the cap assembly 20 and the cover sheet 60 are controlled by the separate driving unit 31.

Specifically, here, as shown in fig. 6, the first track groove 321a is opened on the third transmission unit 32c, and the second track groove 321b is opened on the fourth transmission unit 32 d. The top cover assembly 20 and the cover sheet 60 are driven by the second driving member 312 and the third driving member 313 to move in the corresponding first track groove 321a and the second track groove 321 b.

In an embodiment, the third transmission unit 32c and the fourth transmission unit 32d may be provided in a gear transmission, a belt transmission, or a crank and rocker structure. Illustratively, the third transmission unit 32c and the fourth transmission unit 32d are each provided as a gear transmission structure. Here, the third transmission unit 32c has substantially the same structure as the first transmission unit 32a, and includes a first driving pulley 323, a first driven pulley 324, and a driven shaft 325. Therefore, the same can be referred to the above description of the first transmission unit 32 a; the fourth transmission unit 32d has substantially the same structure as the second transmission unit 32b, and also includes a second driving wheel 326 and a second driven wheel 327. Therefore, the same points can be referred to the above description of the second transmission unit 32b, and the description thereof is omitted. The difference is that the second driving wheel 326 is disposed on the third driving member 313 and is driven by the third driving member 313. Therefore, the third driving member 313 drives the second driving wheel 326 to move, the second driving wheel 326 drives the second driven wheel 327 to move, and the second driven wheel 327 further drives the cover sheet 60 to move. In this manner, a single drive between the cap assembly 20 and the cover sheet 60 is achieved.

In one embodiment, as shown in fig. 10 and 12, the transmission unit 32 employs gears mounted on the output shaft of the drive member unit; the plurality of track grooves 321 are formed in the gear, one end of the connecting rod 23 of the top cover assembly 20 and one end of the connecting portion 62 of the cover sheet 60 are respectively limited on the corresponding track grooves 321, and can move along a predetermined track under the driving of the gear, so as to drive the cover body 22 and the cover sheet 60 along the radial direction of the roller 10, so as to jack up and extend the film 101, and enable the cover sheet 60 to cut off the adsorption air flow at the channel 24 and the first exhaust hole 21.

In an embodiment, as shown in fig. 13 to 15, the transmission unit 32 includes a fifth transmission unit 32e and a crank link assembly 322; the fifth transmission unit 32e may be configured as a gear transmission, a belt transmission, or a crank and rocker.

For example, as shown in fig. 13 to 15, the fifth transmission unit 32e includes a third driving wheel 328 and a third driven wheel 329, the third driving wheel 328 is disposed on the output shaft of the fourth driving member 314, and the third driving wheel 328 and the third driven wheel 329 are engaged with each other for transmission; a plurality of track grooves 321 are formed in the third driven wheel 329, one end of the connecting part 62 of the cover 60 is limited in the track groove 321, and the other end of the connecting part 62 is connected with the body 61 of the cover 60; when the output shaft of the fourth driving part 314 rotates, the third driving wheel 328 and the third driven wheel 329 are driven to rotate and simultaneously drive the crank connecting rod assembly 322 to move, so that the cover body 22 is driven to be turned up by a certain angle along the direction far away from the roller 10, the film is jacked up and extended, and meanwhile, the connecting part 62 and the body 61 are driven to move along the radial direction of the roller 10, so that the body 61 is attached to the inner wall of the opening of the roller 10, the adsorption air flow at the first exhaust hole 21 is cut off, and the cover sheet 60 and the top cover assembly 20 are driven synchronously.

With continued reference to fig. 13-15, the crank link assembly 322 includes: a first connecting rod 3221, a second connecting rod 3222 and a telescopic connecting rod 3223; the driving unit includes a fourth driving member 314, an output shaft of the fourth driving member 314 extends along an axial direction of the roller 10, the output shaft of the fourth driving member 314 is connected to one end of the first connecting rod 3221, the other end of the first connecting rod 3221 is rotatably connected to one end of the telescopic connecting rod 3223, the other end of the telescopic connecting rod 3223 is rotatably connected to the second connecting rod 3222, and the second connecting rod 3222 extends along the axial direction of the roller 10 and is connected to the cover 22, so that when the output shaft of the fourth driving member 314 rotates, the first connecting rod 3221 and the telescopic connecting rod 3223 are driven to move and transmit, and a side of the cover 22, which is not rotatably connected to the roller 10, is lifted by an angle θ toward a direction away from the roller 10 through the second connecting rod 3222, so that at least a portion of the cover 22 protrudes from an outer wall surface of the roller 10 to lift the extension film 101. It can be understood that the telescopic link 3223 has a telescopic function, and when different angles of the cover 22 need to be set, the length of the telescopic link 3223 is adjusted to control the top cover lifting angle θ, so as to extend different lengths of the film 101, and achieve flexible adjustment of the film-to-paper ratio in the paper film laminating device 100. Illustratively, when the lifting angle θ of the cover 22 needs to be increased, the length of the telescopic link 3223 is increased; when it is desired to reduce the lift angle θ of cover 22, the length of pantograph linkage 3223 is shortened.

As shown in fig. 2 to 8, the paper film laminating apparatus 100 further includes an adjusting assembly 40, the adjusting assembly 40 is connected to the top cover assembly 20, and when the top cover assembly 20 is in a lifted state, the adjusting assembly 40 is used to change a relative position between the top cover assembly 20 and the roller 10 in a radial direction of the roller 10 to adjust a length ratio of the film 101 to the paper sheet 102. Thus, if the length ratio of the film 101 to the paper board 102 needs to be adjusted, the relative position between the top cover assembly 20 and the roller 10 in the radial direction of the roller 10 is only required to be adjusted through the adjusting assembly 40, and then the height of the top cover assembly 20 for jacking the film 101 is changed, so that the length of the film 101 can be adjusted at will without changing the structure of the equipment, an arbitrary film-paper ratio is realized, and the application range of the paper film laminating equipment 100 is wider.

Referring to fig. 2 to 8, the adjusting assembly 40 may be disposed between the transmission unit 32 and the top cover assembly 20, one end of the adjusting assembly 40 is connected to the transmission unit 32, and the other end of the adjusting assembly 40 is connected to the top cover assembly 20, and the transmission unit 32 drives the adjusting assembly 40 and the top cover assembly 20 to move. That is, here, the movement of the cap assembly 20 needs to be achieved by the transmission of the adjustment assembly 40. Of course, in other embodiments, the adjusting assembly 40 may not be disposed between the transmission unit 32 and the cap assembly 20, and the cap assembly 20 is connected to the transmission unit 32, and the adjusting assembly 40 is also separately connected to the cap assembly 20.

Alternatively, as shown in fig. 2 and 8, the adjustment assembly 40 includes an automatic adjustment assembly 40a or a manual adjustment assembly 40b. The automatic adjustment assembly 40a adjusts the position of the cover assembly 20 in an automatic manner. The manual adjustment assembly 40b enables adjustment of the position of the cover assembly 20 by way of manual adjustment. The specific method may be selected according to actual circumstances, and is not limited herein.

As shown in fig. 2 and 3, in one embodiment, the adjustment assembly 40 is configured as an automatic adjustment assembly 40a. Illustratively, the automatic adjusting assembly 40a includes a fifth driving member 41, the fifth driving member 41 is disposed on the connecting sleeve 25; the connecting sleeve 25 of the top cover component 20 is movably connected with the connecting rod 23; a fifth driving member 41 and; the connecting rod 23 is connected to automatically drive the connecting rod 23 and the cover 22 to move relative to the connecting sleeve 25 along the extending direction of the connecting sleeve 25. Of course, the fifth driving part 41 can be automatically controlled as required, so as to automatically adjust the position of the top cover assembly 20 as required, and especially, the height of the cover 22 along the radial jacking of the roller 10 can be automatically and continuously adjusted through the fifth driving part 41, so that the jacking height of the film 101 can be arbitrarily adjusted in a non-stop state of a production line, the adjustment difficulty is obviously reduced without stopping the production line, the work efficiency is improved, and the yield is improved. Specifically, the fifth driving element 41 may adopt a cylinder, a screw rod, or a slide rail. Illustratively, the fifth driving member 41 is configured as an air cylinder, the connecting sleeve 25 is provided with a sliding groove 251, one end of the connecting sleeve 25 is connected with the limiting rod 26, the other end extends along the radial direction of the roller 10, and one end of the limiting rod 26 is limited in the first track groove 321 a. The connecting rod 23 is slidably disposed in the slide groove 251, and the cylinder is connected to the connecting rod 23 to thereby drive the connecting rod 23 to slide to a predetermined position in the slide groove 251.

As shown in fig. 5 and 6, in one embodiment, the adjustment assembly 40 is configured as a manual adjustment assembly 40b. Specifically, the manual adjustment assembly 40b includes a locking member 42, and the connecting rod 23 of the top cover assembly 20 can move relative to the connecting sleeve 25 to adjust the position of the connecting rod 23 on the connecting sleeve; the locking member 42 is used for locking the adjusted connecting rod 23 on the connecting sleeve 25 or unlocking the connecting rod 23, so that the connecting rod 23 and the cover 22 can move relative to the connecting sleeve 25. Wherein the locking member 42 may be configured as a pin, bolt, or the like. Of course, in other embodiments, the specific structure of the adjusting assembly 40 is not limited to the manner described above or shown in the drawings, for example, the connecting sleeve 25 and the connecting rod 23 are combined to form a telescopic rod; for another example, as shown in fig. 13 and 15, the telescopic link 3223 corresponds to the adjusting assembly 40, and the length of the telescopic link 3223 is adjusted to control the top cover lifting angle θ, so that different lengths of the film 101 are extended, and the film-to-paper ratio in the paper film laminating apparatus 100 is flexibly adjusted.

Optionally, along the extending direction of the connecting sleeve 25, a plurality of adjusting positions arranged at intervals are arranged on the connecting sleeve 25; the connecting rod 23 can be fixed at any one of the adjusting positions through the locking piece 42 so as to realize the adjustment of the position of the connecting rod 23 on the connecting sleeve 25, thereby changing the height of the top cover assembly 20 capable of jacking the film 101.

As shown in fig. 1, the paper film laminating apparatus 100 further includes a conveying assembly 70, a slitting assembly 80, and a transferring assembly 90, wherein the conveying assembly 70 is used for conveying a paper board 102, i.e., a paper board 102, is placed on the conveying assembly 70 and moves to the roller 10 under the conveying of the conveying assembly 70. The roller 10 is located above the conveying assembly 70, and the transfer assembly 90 is used for transferring the film 101 to the roller 10. The slitting assembly 80 is used for slitting the film 101, and the slitting assembly 80 can be positioned after the roll 10 or before the roll 10 in the conveying direction of the film 101. In the process of laminating the film 101 and the paperboard 102 by the paper film laminating device 100, when the film 101 does not need to be extended, the top cover assembly is at an initial position (i.e. the cover 22 is located in the opening 11), the conveying assembly 70 conveys the film 101 to the roller 10, when the film 101 is conveyed to the roller 10, the film 101 is adsorbed on the outer surface of the roller under the action of the adsorbing member 50, the slitting assembly 80 can cut the film 101 at a specified position, the cut film continues to move along with the roller 10, and when the roller 10 drives the film conveying assembly 70, the film 101 and the paperboard 102 coated with glue are laminated.

When the film 101 needs to be extended, the top cover assembly 20 extends out of the opening under the driving of the driving assembly 30 and jacks up the film 101 at the opening, so that the local height of the film 101 is raised, and after the film 101 is raised, the top cover assembly 20 returns to the initial position, at which the film 101 is stacked on the cover 22 under the action of gravity, thereby achieving the stack extension of the film 101. At the same time, the film 101 is still attracted to the roller 10, so that it can continue to be conveyed as the roller 10 rotates. Therefore, the paper film laminating equipment 100 can produce products with the film-paper ratio of 1, namely the film paper is of equal length, and can also produce products with the film-paper ratio of more than 1.

In addition, when the height of the top cover assembly 20 jacked up along the radial direction of the roller 10 needs to be adjusted, the position of the top cover assembly 20 can be adjusted through the adjusting assembly 40, so that the adjustable height of the top cover assembly 20 is changed; therefore, the height of the film 101 which is jacked up can be adjusted according to corresponding requirements, namely, the proportion between the film 101 and the paperboard 102 can be adjusted randomly, and the adaptability of the product is further improved.

As shown in fig. 16, the process flow of laminating the film 101 and the paper board 102 mainly includes film slitting, film extension, paper board slitting, paper board conveying, paper board gluing and paper film laminating, and finally the formed product shown in fig. 18 is formed.

The film slitting device comprises a conveying assembly 70 for conveying a film 101 to a roller 10, and an adsorption piece 50 for adsorbing the film 101 on the outer wall of the roller 10 and driving the film to continue conveying. The slitting assembly 80 cuts the film 101 at the appropriate time. Illustratively, as shown in fig. 1, the conveying assembly 70 includes a first roller 71, a second roller 72, and a third roller 73, a roll film 101 is disposed in the first roller 71, the film 101 passes between the second roller 72 and the third roller 73, wherein the second roller 72 and the third roller 73 are rotated by corresponding motors (not shown), so as to transfer the film 101 to the roller 10.

With continued reference to figure 1, the slitting assembly 80 includes a slitting blade 81 and a drive mechanism (not shown) coupled to the slitting blade 81 and capable of driving the slitting blade 81 in an up and down or circular motion relative to the roller 10 to cut the film 101 at the appropriate location. Illustratively, the slitting knife 81 is required to slit the film 101 twice, and after the first cut of the film 101, the roller 10 transfers the film 101 and waits for the proper film 101 size before cutting the second knife. When the film 101 is conveyed to the roller 10, the cutter cuts off the film 101 at a designated position, the roller 10 drives the film 101 to rotate downwards, and when the paperboard 102 is conveyed to the position below the roller 10, the film 101 is peeled off from the roller 10 and is bonded with the paperboard 102 due to the strong adhesion of the colloid.

Paperboard slitting refers to slitting of the paper or paperboard 102 into sheets of the desired size. The conveying board means that the paper board 102 is conveyed by a conveying belt and conveyed to the lower part of the gluing roller for gluing. For example, as shown in fig. 1, the conveying assembly 90 includes a supporting body 91 and a conveying belt 92, the supporting body 91 serves as a basic supporting component, and the structure thereof may be set according to actual requirements, which is not described herein again. Slitting assembly 80 can be mounted on support 91 and moved up and down relative to support 91 to slit film 101 on roll 10. The conveyor belt 92 is arranged on the support 91 in a rolling manner, and the glued conveyor belt 92 is arranged on the support 91 at intervals and conveyed to the roller 10 under the driving of the conveyor belt 92.

Here, according to the principle of transfer printing of cardboard coating cylinder, glue is transferred to the cardboard 102 through the glue strip on the coating cylinder (not shown), and only the glue strip (including width and distance) suitable for the size of the cardboard 102 is attached to the coating roller, and during the rotation of the coating roller, the glue strip is coated through the glue groove, so that partial coating of the glue can be realized, and then the partial coating of the film 101 and the cardboard 102 is realized, and the part of the cardboard 102 which is not coated with the glue is in a separated state.

The paper film laminating means that after the paper board 102 is glued, the paper board is conveyed continuously through the conveyor belt 92, and when the paper board 102 is conveyed to the lower part of the roller 10, the film 101 is peeled off from the roller 10 and is adhered to the paper board 102 due to the strong adhesion of the glue. The film 101 is bonded to the sheet 102 with a glue portion and without the glue portion separated, i.e., assumes the configuration shown in fig. 18.

It is worth emphasizing that researches show that in the scheme of realizing film stacking by adopting a mode of speed difference of a conveyor belt, in order to ensure normal slitting, the length of the film with unequal-length laminated film of the film paper can maximally reach 1.5 times of the length of the film with equal-length laminated film of the film paper; in the scheme of adopting a concave-convex roller form to realize the extension of the film, the length of the unequal-length laminating film of the film paper can be 1.375 times of that of the equal-length laminating film of the film paper, illustratively, the whole circle length of the roller is X, because the film on the roller needs to be laminated with the paperboard on the conveyor belt below the roller, the longest length of the film is the whole circle length of the roller, the roller is provided with 10 grooves at most, and in order to avoid the problem of meshing of the upper roller and the lower roller, the depth of the groove cannot be too deep, namely, the maximum depth of each groove is 25mm, so that the length of the film is (25 multiplied by 10X)/X of the original equal length, the whole circle length of the roller is conventionally larger than 800mm, and the substitution calculation is about 1.3 times. In the paper film laminating apparatus 100 provided in the embodiment of the present application, when the film 101 and the paper board 102 are not overlapped in the same length, the size of the length L of the film 101 is not limited, and the length L can be set according to an actually required packaged product, so as to realize any ratio between the film 101 and the paper board 102, and even adjust the film-paper ratio without stopping the apparatus.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not to be construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A paper film laminating apparatus for laminating a film to a paperboard, said paper film laminating apparatus comprising:

a roller for rollingly conveying a film;

the top cover assembly is arranged on the roller, at least part of the top cover assembly can move relative to the outer wall surface of the roller, so that at least part of the top cover assembly protrudes out of the outer wall surface of the roller, and the film on the roller is jacked up in the direction away from the outer wall surface of the roller, so that the length ratio of the film to the paperboard is larger than 1; the top cover assembly comprises a cover body, the cover body is used for jacking up the thin film, and the cover body is provided with an exhaust hole;

the driving assembly is connected with the top cover assembly and is used for driving the top cover assembly to move; when the driving component drives part of the top cover component to jack up and protrude out of the outer wall surface of the roller, the top cover component is in a jacking state, so that the length ratio of the film to the paperboard is larger than 1; when the driving component drives at least part of the top cover component to return to the state of not protruding out of the outer wall surface of the roller, the top cover component is in a retracted state, so that the length ratio of the film to the paperboard is equal to 1;

the cover plate is positioned in the roller and connected with the driving component, and the cover plate can cut off the adsorption air flow passing through the air exhaust hole on the cover body under the driving of the driving component; the cover plate comprises a first cover plate corresponding to the cover body, and the first cover plate and the cover body are integrally arranged.

2. The paper film laminating equipment of claim 1, wherein an opening is formed in the outer wall surface of the roller, the opening is communicated with the inside of the roller and extends along the axial direction of the roller;

the top cover assembly is arranged at the opening, and at least part of the top cover assembly can extend out of the opening and protrude out of the outer wall surface of the roller under the driving of the driving assembly so as to jack up the film.

3. The paper film laminating apparatus of claim 2, wherein the cap assembly is rotatable relative to the roller to partially protrude out of the opening and protrude out of an outer wall surface of the roller;

alternatively, the cover assembly can move along the radial direction of the roller to extend out of the opening and protrude out of the outer wall surface of the roller.

4. The paper film laminating apparatus of claim 3, wherein the cap assembly is rotatable relative to the roller; wherein, the top cap assembly includes:

the cover body is arranged at the opening and is rotationally connected with the roller, so that part of the cover body can rotate relative to the roller under the driving of the driving assembly and protrudes out of the outer wall surface of the roller to jack up the film at the opening.

5. The paper film laminating apparatus of claim 3, wherein the cap assembly is movable in a radial direction of the roller; wherein, the top cap assembly includes:

the cover body is arranged at the opening;

one end of the connecting rod is connected with the driving assembly, and the other end of the connecting rod extends along the radial direction of the roller and is connected with the cover body;

the driving assembly drives the cover body to completely extend out of the opening along the radial direction of the roller through the connecting rod so as to jack up the film at the opening.

6. The paper film laminating apparatus of claim 1, further comprising an adjusting assembly connected to the top cover assembly, wherein when the top cover assembly is in a lifted state, the adjusting assembly is configured to change a height of the top cover assembly protruding from the outer wall surface of the roller to adjust a length ratio of the film to the paper board.

7. The paper film laminating equipment of claim 1, further comprising an adsorption member, wherein the roller is also provided with the exhaust holes, and the adsorption member adsorbs a film to the outer surface of the top cover assembly and the outer wall surface of the roller through the exhaust holes; the cover plate is driven by the driving assembly to cut off the adsorption air flow formed by the adsorption piece at the air exhaust hole corresponding to the cover plate.

8. The paper film laminating apparatus of claim 7, wherein the top cover assembly comprises:

the cover plate is positioned in the roller and arranged on the connecting rod, and can be abutted against the inner wall of the roller along with the movement of the connecting rod so as to cut off the adsorption air flow formed by the adsorption piece at the air exhaust hole corresponding to the cover plate.

9. The paper film laminating apparatus of claim 8, wherein the first cover sheet is disposed between the cover and the connecting bar, and the first cover sheet is spaced apart from the cover to form a passage through which air flows into and out of the air vents in the cover.

10. The paper film laminating apparatus of claim 7, wherein the driving assembly is provided with a first track groove and a second track groove;

one end of the top cover component is limited in the first track groove and moves in the first track groove under the driving of the driving component, so that at least part of the other end of the top cover component is jacked up and protrudes out of the outer wall surface of the roller;

at least part of the cover plate is limited in the second track groove and can move in the second track groove under the driving of the driving assembly, so that the cover plate is abutted against the inner wall of the roller and the adsorption air flow formed by the adsorption piece at the exhaust hole is cut off.