CN217968397U - Paper film laminating equipment - Google Patents

Abstract

The application relates to the technical field of packaging, in particular to paper film laminating equipment. The apparatus includes: the outer wall of the conveying piece is provided with an opening; the flip cover is arranged at the opening, is rotationally connected with the conveying piece and can be turned relative to the conveying piece so that at least part of the flip cover protrudes out of the outer wall surface of the conveying piece and jacks up and extends the film, so that the length ratio of the thin paper is larger than 1; the length ratio of the thin paper is equal to 1 when the flip cover is in the folding state; the adjusting component comprises a first elastic piece and a second elastic piece, the first elastic piece is arranged between the flip cover and the conveying piece and used for pushing the flip cover to turn over and jack up the film, and one end of the second elastic piece is connected with the flip cover and used for drawing the flip cover to turn over the flip cover towards the opening; and the driving component is connected with the second elastic piece and pulls the second elastic piece so as to change the elasticity difference between the second elastic piece and the first elastic piece and adjust the turning angle of the flip cover. The application has the advantages that: the lamination of the length ratio of any film to the length of the paperboard can be realized, 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. In the prior art, when the paper films are laminated, two ends of the film are adhered to the adhesive area, but the length of the film is larger than that of the paper board, so that articles can be placed between the film and the paper board. Currently, partial lamination of paper films in the industry is realized by adopting a film absorbing and conveying piece to realize film-paper ratio 1. The following two schemes are adopted in the industry of equipment and production process which can realize film covering with unequal lengths, such as the ratio of film to paper is more than 1:

the first scheme is a mode of conveying belt speed difference, the film stacking is realized by utilizing the speed difference of two conveying belts, and the direction of a film sucking and conveying piece which is commonly used in the industry is completely abandoned; the scheme can realize the non-stop switching between the non-isometric film covering and the isometric film covering of the film absorbing and conveying piece; however, this solution requires the packaging manufacturer to completely rebuild a new production facility, and abandons the original general way of sucking and conveying members on the equal-length laminated films in the industry, which consumes a lot of waste and cannot adjust the film-to-paper ratio at will.

The second scheme is that in the mode of absorbing film conveying members inside, projections and grooves are respectively arranged on the upper conveying member and the lower conveying member by utilizing the convex-concave principle, and films with unequal lengths between the films and the paper are coated by convex-concave matching. However, the uneven-length film covering is realized by the concave-convex matching of the two film absorbing conveying pieces, when the film needs to be covered with equal length, a production line must be stopped to replace the traditional conveying piece, and huge production equipment consumption is caused.

Therefore, how to design the unequal length films falls on the design direction of the film absorbing and conveying piece in the industry adopted by a packaging manufacturer, and the problem that the traditional equal length films and the existing unequal length films cannot be replaced without stopping is solved, so that the design method becomes a key technology for restricting the upgrade iteration of the packaging industry.

Furthermore, how to realize the random adjustment of the length proportion of the film paper on the premise of not changing the devices such as a conveying member and the like so as to further expand the application range of the paper film laminating device is the pain point of the upgrading iteration of the packaging industry.

SUMMERY OF THE UTILITY MODEL

In view of the above, 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 in which the ratio of paper films is arbitrarily adjustable in the unequal length laminating mode.

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

a paper laminating apparatus for laminating a paperboard with a film, the paper laminating apparatus comprising:

a conveying member for conveying the film in a rolling manner; an opening which extends along the axial direction of the conveying piece and is communicated with the interior of the conveying piece is formed in the outer wall of the conveying piece;

the flip cover is arranged at the opening, is connected with the conveying piece in a rotating mode and can be turned relative to the conveying piece, so that at least part of the flip cover protrudes out of the outer wall surface of the conveying piece, and jacks up the thin film on the conveying piece to the direction away from the outer wall surface of the conveying piece to extend the thin film, and the flip cover is in a jacking state, so that the length ratio of the thin film to the paperboard is larger than 1; when the turnover cover is turned towards the opening and returns to the state that the turnover cover does not protrude out of the outer wall surface of the conveying piece, the turnover cover is in a retracted state, so that the length ratio of the film to the paperboard is equal to 1;

the adjusting component comprises a first elastic piece and a second elastic piece, the first elastic piece is arranged between the flip cover and the conveying piece and used for pushing the flip cover to turn so as to jack up the film, and one end of the second elastic piece is connected with the flip cover and used for pulling the flip cover so as to turn the flip cover towards the opening;

and the driving component is connected with the other end of the second elastic piece and pulls the second elastic piece so as to change the elasticity difference between the second elastic piece and the first elastic piece and adjust the turning angle of the flip cover.

In one embodiment, the first elastic member is a first spring, and the second elastic member is a second spring.

In one embodiment, the number of the first elastic members is multiple, and the multiple first elastic members are arranged at intervals along the axial direction of the conveying member.

In one embodiment, the number of the first elastic members is two, and the two first elastic members are arranged at two ends of the flip along the axial direction of the conveying member.

In one embodiment, the paper film laminating apparatus further comprises an adsorbing member and a cover sheet; a plurality of exhaust holes are formed in the outer wall surface of the conveying piece and the turnover cover; the adsorption part adsorbs the film on the outer wall of the conveying part and the flip cover through the exhaust hole; the cover plate is arranged in the conveying piece and connected with the driving assembly so as to cut off the adsorption air flow formed by the adsorption piece at the air exhaust hole corresponding to the cover plate under the driving of the driving assembly; one end of the first elastic piece is connected with the inner wall of the turnover cover in an abutting mode, and the other end of the first elastic piece is connected with the cover plate at the opening in an abutting mode.

In one embodiment, the drive assembly comprises a drive unit and a transmission unit, the transmission unit being connected to the drive unit; the second elastic piece is connected with the transmission unit, and the driving unit drives the transmission unit to move to pull the second elastic piece when moving; the cover plate is connected with the transmission unit, and the driving unit drives the cover plate to shield the corresponding exhaust hole through the transmission of the transmission unit so as to cut off the adsorption air flow at the exhaust hole.

In one embodiment, the driving unit comprises a driving part and a driving shaft, wherein the driving part is used for driving the driving shaft to rotate; the transmission unit comprises a pull rod, one end of the pull rod is connected with the driving shaft, the other end of the pull rod extends along the radial direction of the conveying piece and is connected with one end, far away from the turnover cover, of the second elastic piece, and the driving shaft drives the pull rod to rotate when rotating so as to draw or compress the second elastic piece.

In one embodiment, the transmission unit further comprises a rotary disc and a transmission rod, the rotary disc is connected with the driving shaft, and the driving shaft drives the rotary disc to rotate when rotating; the turntable is provided with a track groove, one end of the transmission rod is limited in the track groove and moves along the track groove, and the other end of the transmission rod is connected with the cover plate, so that the cover plate is far away from or close to the circumferential side wall of the conveying piece along the radial direction of the conveying piece.

In one embodiment, the transmission unit further comprises a limiting rod, the limiting rod is arranged in the track groove and can slide along the track groove, and the limiting rod is connected with one end, far away from the cover plate, of the transmission rod.

In one embodiment, when the flip cover is in the lifted state, the length of the first elastic member after deformation is X, the distance between the connection point of the first elastic member and the flip cover and the connection point of the flip cover and the transmission member is L2, the distance between the connection point of the second elastic member and the flip cover and the connection point of the flip cover and the transmission member is L1, and the calculation formula of the length W of the film lifted and extended is as follows:

W＝L ₁ X/L ₂ (1)。

compared with the prior art, the paper film laminating equipment provided by the application has the advantages that when the film laminating mode is unequal in length, namely the film is required to be prolonged, the driving component drives the turning cover to turn relative to the rotating part, so that at least part of the turning cover protrudes out of the outer wall surface of the rotating part, the film is jacked up, and the film is prolonged; the turning angle of the turning cover is adjusted by changing the elastic force difference of the first elastic part and the second elastic part, so that the extended length of the film is adjusted, the quantitative extension of the film is realized, the extended length of the film can be accurately and flexibly controlled, the length of the film can be adjusted randomly and quantitatively in a controllable manner without changing equipment, and a random film-to-paper ratio is realized; in the equal-length film covering mode, namely when the film does not need to be extended, the driving component drives the flip cover to be arranged at the opening, so that the flip cover does not protrude out of the outer wall of the roller, the film is not jacked up by the flip cover, and the film paper is equal in length. Therefore, the paper film laminating equipment provided by the application can produce products with the film-paper ratio of 1.

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 a schematic view illustrating a flip cover in a retracted state according to an embodiment of the present application.

Fig. 3 is a schematic diagram illustrating a flip cover in a lifted state according to an embodiment of the present application.

FIG. 4 is a schematic view of the elongation of the thin film in the present application.

Fig. 5 is a production process flow diagram of the paper film laminating apparatus provided in the present application.

Fig. 6 is a schematic diagram of a paper film laminated product.

Fig. 7 is a schematic illustration of the film provided herein after being extended and laminated to paperboard.

Reference numerals: 100. a paper film laminating device; 101. a film; 102. a paperboard; 10. a conveying member; 11. an opening; 12. a barrel; 13. a cylinder cover; 14. a first exhaust port; 20. a cover is turned; 21. a second vent hole; 30. a drive assembly; 31. a drive unit; 311. a drive member; 312. a drive shaft; 313. a guide bar; 314. a guide groove; 32. a transmission unit; 321. a pull rod; 322. a turntable; 323. a track groove; 324. a transmission rod; 325. a limiting rod; 40. an adjustment assembly; 41. a first elastic member; 42. a second elastic member; 50. an adsorbing member; 60. a cover sheet; 60a, a first cover sheet; 60b, a second cover sheet; 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 figures are described in detail below. 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 terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used in the description of the present application are for illustrative purposes only and do not represent the only embodiments.

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 such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited 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 is in indirect contact with the second feature via an intermediate medium. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or may simply mean 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 in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present 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 this application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, an embodiment of 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.

With continued reference to fig. 1 to 3, in one embodiment, the paper film laminating apparatus 100 includes a conveying member 10, a flip cover 20, an adjusting member 40 and a driving member 30. Wherein the conveyor 10 is used for conveying the film 101 in a rolling manner; an opening 11 which extends along the axial direction of the conveying piece 10 and is communicated with the interior of the conveying piece 10 is formed in the outer wall of the conveying piece 10; the flip cover 20 is arranged at the opening 11, the flip cover 20 is rotatably connected with the conveying member 10 and can be turned relative to the conveying member 10, so that at least part of the flip cover 20 protrudes out of the outer wall surface of the conveying member 10, the film 101 on the conveying member 10 is jacked up to extend the film 101 in the direction away from the outer wall surface of the conveying member 10, and the flip cover 20 is in a jacked state, so that the length ratio of the film 101 to the paper board 102 is greater than 1; when the flip cover 20 is turned towards the opening 11 and returns to the state of not protruding out of the outer wall surface of the conveying member 10, the flip cover 20 is in a retracted state, so that the length ratio of the film 101 to the paperboard 102 is equal to 1; the adjusting assembly 40 comprises a first elastic member 41 and a second elastic member 42, the first elastic member 41 is disposed between the flip 20 and the conveying member 10 for pushing the flip 20 to flip to jack the film 101, and one end of the second elastic member 42 is connected to the flip 20 for pulling the flip 20 to flip the flip 20 toward the opening 11; the driving assembly 30 is connected to the other end of the second elastic member 42, and the driving assembly 30 pulls the second elastic member 42 to change a difference in elasticity between the second elastic member 42 and the first elastic member 41, thereby adjusting the flip angle of the flip 20.

It can be understood that, in the paper film laminating apparatus 100 provided by the present application, when the film 101 needs to be extended in the non-equal length laminating mode, the driving assembly 30 drives the flip cover 20 to flip relative to the conveying member 10, so that at least a portion of the flip cover 20 protrudes from the outer wall surface of the conveying member 10, thereby jacking up the film 101 and extending the film 101; the adjusting assembly 40 is arranged, the second elastic member 42 is pulled through the driving assembly 30, so that the elastic force difference between the first elastic member 41 and the second elastic member 42 is changed, the turning angle of the turning cover 20 is adjusted, the extended length of the film 101 is adjusted, the quantitative extension of the film 101 is realized, the extended length of the film 101 can be accurately and flexibly controlled, the length of the film 101 can be adjusted in a random and quantitative and controllable mode without replacing equipment, and any film-to-paper ratio is realized; in the equal-length film coating mode, namely when the film 101 does not need to be extended, the driving component 30 drives the flip cover 20 to cover the opening 11, so that the flip cover 20 does not protrude out of the outer wall of the roller, and thus the film 101 is not jacked up by the flip cover 20, and the film paper is equal in length. Therefore, the paper film laminating equipment 100 provided by the application can produce products with film-paper ratio of 1.

As shown in fig. 1 to 3, the transferring member 10 includes a cylinder 12 and a cylinder cover 13, the cylinder cover 13 is disposed on both ends of the cylinder 12, the cylinder 12 is cylindrical, and the cylinder 12 is used for a rolling transmission film 101. The opening 11 is opened on the cylinder 12 along the axial extension of the cylinder 12, and the length of the opening 11 along the axial extension of the roller can be set according to the width of the film 101.

Preferably, in the present embodiment, as shown in fig. 2, the flip 20 is adapted to the outer shape of the barrel 12, and when the flip 20 is in the retracted state, the flip 20 covers the opening 11 and is spliced with the barrel 12 to form the outer wall surface of the barrel 12. Of course, in other embodiments, the specific shape of the flip 20 is not limited to that described above or shown in the figures.

As shown in fig. 2 and 3, the paper film laminating apparatus 100 further includes an adsorption member 50 and a cover sheet 60; a plurality of exhaust holes are formed on the outer wall surface of the conveying piece 10 and the turnover cover 20; the adsorption member 50 adsorbs the film 101 to the outer wall of the conveying member 10 and the flip cover 20 through the exhaust hole; the cover sheet 60 is disposed in the conveyor 10 and connected to the driving assembly 30 to cut off the suction air flow of the suction member 50 at the exhaust holes corresponding to the cover sheet 60 under the driving of the driving assembly 30. Wherein, one end of the first elastic member 41 is connected to the inner wall of the lid 20 in an abutting manner, and the other end is connected to the cover sheet 60 at the opening 11 in an abutting manner. For example, in one embodiment, as shown in fig. 2 and 3, the flip cover 20 is provided with a first vent hole 14, the barrel 12 is provided with a second vent hole 21, and the adsorbing member 50 adsorbs the film 101 to the outer surface of the flip cover 20 and the outer wall of the barrel 12 through the first vent hole 14 and the second vent hole 21.

Specifically, as shown in fig. 3, when the driving assembly 30 drives the cover sheet 60 to translate along the radial direction of the cylinder 12 until the cover sheet 60 is attached to the inner wall of the cylinder 12, the suction force on the surface of the cylinder 12 is cut off; the both sides of the cover sheet 60 corresponding to the opening 11 are attached to the inner wall of the cylinder 12 at the opening 11, thereby cutting off the adsorption air flow passing through the opening 11, and further cutting off the adsorption force on the surface of the lid 20, so that the lid 20 no longer adsorbs the film 101.

In one embodiment, the suction unit 50 is an air pump or a vacuum pump, and after the suction unit 50 is started, air is continuously sucked into the roller body 12 through the air vent holes, so that a negative pressure is formed inside the roller body 12 with respect to the outside of the roller body 12, thereby sucking the film 101 on the outer wall of the roller body 12, and at the same time, the roller body 12 generates a suction force to the film 101 through the air vent holes on the outer wall surface thereof, so that the roller body 12 can suck the film 101 and transmit the film. Of course, other devices capable of generating suction force can be used for the suction member 50. In addition, the conveyer 10 may also adopt a suction roller, and in this case, the suction member 50 and the cylinder 12 together form the suction roller, thereby reducing the use of separate components and reducing the installation process and the processing cost.

In one embodiment, as shown in fig. 3, the cover sheets 60 are provided in one piece and are provided as first cover sheets 60a, the first cover sheets 60a correspond to the flip cover 20, so that when the flip cover 20 is switched to the lifted state, the driving assembly 30 drives the first cover sheets 60a to move along the radial direction of the cylinder 12 to be attached to the opening 11 and the inner wall surface of the cylinder 12, no air flow passes through the opening 11 of the cylinder 12, so as to block the air flow from passing through the first air exhaust hole 14, thereby cutting off the adsorption force of the adsorption member 50 on the film 101 through the first air exhaust hole 14.

Referring to fig. 3, the cover sheets 60 are disposed in a plurality of numbers, the cover sheet 60 corresponding to the lid 20 is a first cover sheet 60a, the cover sheet 60 corresponding to the barrel 12 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 barrel 12, so as to fully utilize the space inside the barrel 12. When the driving component 30 drives the second cover sheet 60b to adhere to the inner wall of the cylinder 12, the air flow passing through the second air vent 21 can be cut off, certainly, in this embodiment, the flip 20 is in a lifted state, the second cover sheet 60b moves towards the cylinder 12 to partially adhere to the inner wall of the cylinder 12, so as to weaken the adsorption force of the outer wall of the cylinder 12, so that the flip 20 lifts and extends the film 101, certainly, a gap is still reserved between the second cover sheet 60b and the second air vent 21, so that the outer wall of the cylinder 12 has a certain adsorption force, and thus the extended film 101 can be adsorbed and transferred.

In one embodiment, as shown in fig. 2 and 3, the driving assembly 30 includes a driving unit 31 and a transmission unit 32, the transmission unit 32 being connected to the driving unit 31; the second elastic member 42 is connected with the transmission unit 32, and the driving unit 31 drives the transmission unit 32 to transmit to pull the second elastic member 42 when moving; the cover sheet 60 is connected with the transmission unit 32, and the driving unit 31 transmits through the transmission unit 32 to drive the cover sheet 60 to shield the corresponding air discharge hole, thereby cutting off the adsorption air flow at the air discharge hole.

In the present embodiment, as shown in fig. 2 and 3, the driving unit 31 includes a driving member 311 and a driving shaft 312, the driving member 311 is used for driving to rotate the driving shaft 312; the transmission unit 32 includes a pull rod 321, one end of the pull rod 321 is connected to the driving shaft 312, and the other end of the pull rod 321 extends along the radial direction of the barrel 12 and is connected to one end of the second elastic member 42 away from the flip 20, and the driving shaft 312 drives the pull rod 321 to rotate when rotating to pull or compress the second elastic member 42.

With continued reference to fig. 2 and 3, the transmission unit 32 further includes a rotary plate 322 and a transmission rod 324, the rotary plate 322 is coaxially connected to the driving shaft 312, and the driving shaft 312 drives the rotary plate 322 to rotate when rotating; the turntable 322 is provided with a track groove 323, one end of the transmission rod 324 is limited in the track groove 323 and moves along the track groove 323, and the other end is connected with the cover plate 60, so that the cover plate 60 is far away from or close to the circumferential side wall of the conveying member 10 along the radial direction of the conveying member 10.

Further, the transmission unit 32 further includes a limiting rod 325, the transmission rod 324 is limited in the track groove 323 through the limiting rod 325, one end of the limiting rod 325 is located in the track groove 323 and can move along the track groove 323, the other end of the limiting rod is connected with the transmission rod 324, and the transmission rod 324 extends along the radial direction of the barrel 12, so that when the turntable 322 rotates, the limiting rod 325 moves towards the center of the turntable 322 or the edge of the turntable 322 along the track groove 323, and correspondingly drives the transmission rod 324 to push the cover plate 60 to move towards the inner wall of the barrel 12 or away from the barrel 12. In other embodiments, the manner of driving the cover plate 60 to move is not limited to the above, and the cover plate 60 may be driven to move by a crank link or a chain drive, for example.

As shown in fig. 4, the driving unit 31 further includes a guiding rod 313, a guiding groove 314 is formed on the guiding rod 313, one end of the guiding rod 313 is connected to the driving shaft 312, the other end of the guiding rod 313 extends along the radial direction of the cylinder 12, the connecting rod is at least partially disposed in the guiding groove 314 and can slide along the guiding groove 314, the connecting rod is limited and guided by the guiding groove 314, the movement and the dislocation of the cover sheet 60 caused by the displacement of the connecting rod are prevented, and the stability and the precision of the movement of the cover sheet 60 are improved.

As shown in fig. 3, in one embodiment, the first elastic member 41 is a first spring, one end of the first spring is connected to the lid 20, the other end of the first spring is connected to the pull rod 321, and the second elastic member 42 is a second spring, one end of the second spring abuts against the inner wall surface of the lid 20, and the other end of the second spring abuts against the outer wall surface of the cover 60, but the other end of the second spring may abut against the outer wall surface of the barrel 12 at the opening 11 in other embodiments. In the state of equal-length film covering, the driving shaft 312 drives the pull rod 321 to rotate so as to make the pull rod 321 away from the flip 20, so that the pull rod 321 pulls the first spring, so that the elastic force of the first spring is greater than that of the second spring, until the flip 20 is turned over and returns to the retracted state; in the state of film covering with unequal length, the driving shaft 312 drives the pull rod 321 to rotate to approach the flip 20, so that the pulling force of the pull rod 321 on the first spring is reduced, and the elastic force of the first spring is smaller than that of the second spring, until the flip 20 turns in the direction far away from the opening 11 and reaches the jacking state, thereby extending the film 101. The spring structure has low cost and wide source, which is beneficial to reducing the equipment cost, and of course, other elastic structures can be selected in other embodiments.

Illustratively, the number of the first elastic members 41 is plural, and the plural first elastic members 41 are arranged at intervals along the axial direction of the conveying member 10. By providing a plurality of first elastic members 41, the flip cover 20 is stably pushed to flip.

Specifically, as shown in fig. 3, in the present embodiment, the number of the first elastic members 41 is two, and the two first elastic members 41 are disposed at both ends of the flip 20 along the axial direction of the conveying member 10, so as to uniformly support both ends of the flip 20, and to make the flip 20 stably lift the film 101. Of course, one or more than two first elastic members 41 may be provided.

As shown in fig. 4, when the first elastic member moves from the point Q1 to the point Q2 and the flip cover 20 is in the lifted state, the first elastic memberThe length of the deformed part 41 is X, the distance between the connection point of the first elastic member 41 and the flip cover 20 and the connection point of the flip cover 20 and the transmission member 10 is L2, and the distance between the connection point of the second elastic member 42 and the flip cover 20 and the connection point of the flip cover 20 and the transmission member 10 is L1. The W/X = L can be obtained by the principle that corresponding edges of similar triangles are in proportional relation ₁ /L ₂ Therefore, the calculation formula of the length W of the film 101 for jacking extension is: w = L ₁ X/L ₂ 。

Referring to fig. 4, in the present embodiment, when the second elastic element 42 is disposed at the edge of the flip 20, L2 is equal to the width of the flip 20; when the first elastic member 41 is connected to the midpoint of the folder 20 in the width direction of the folder 20, L is ₁ ＝2*L ₂ Therefore, when the first elastic member 41 moves from the point Q1 to the point Q2, the extended length W =2X of the film 101, wherein the length X of the deformed first elastic member 41 can be measured, and of course, the total length X of the deformed first elastic member 41 can also be calculated by using the elastic force, the deformation coefficient and the original length of the first elastic member 41.

As shown in fig. 1, the paper film laminating apparatus 100 further includes a conveying assembly 70, a slitting assembly 80, and a conveying 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 a roller under the conveying of the conveying assembly 70. A roller is positioned relatively above the conveyor assembly 70 and a transfer assembly 90 is used to transfer the film 101 to the roller. The slitting assembly 80 is used to slit the film 101 and the slitting assembly 80 can be positioned after the roller or before the roller in the direction of travel of the film 101. In the process of combining the film 101 and the paperboard 102 by the paper film combining device 100, when the film 101 does not need to be extended, the flip cover 20 is in an initial position (i.e., the flip cover 20 is located in the opening 11 and does not protrude from the outer wall surface of the conveying member 10), the conveying component 70 conveys the film 101 to the conveying member 10, when the film 101 is conveyed to the conveying member 10, the film 101 is adsorbed on the outer surface of the conveying member 10 under the action of the adsorbing member 50, the cutting component 80 can cut the film 101 at a specified position, the cut film 101 continues to move along with the conveying member 10, and when the conveying member 70 moves along with the film 101 by the conveying member 10, the film 101 is combined with the paperboard 102 coated with the glue.

When the film 101 needs to be extended, the flip cover 20 extends out of the opening 11 under the driving of the driving component 30 and lifts up the film 101 at the opening 11, so that the local height of the film 101 is raised, and after the film 101 is raised, the flip cover 20 returns to the retracted state at the initial position, and at this time, the film 101 is stacked on the flip cover 20 under the action of gravity, so as to achieve the stacked extension of the film 101. At the same time, the film 101 is still attracted to the conveyor 10, so that it can continue to be conveyed as the roller 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.

As shown in fig. 5, the process flow of laminating the film 101 and the paper board 102 mainly includes slitting the film 101, extending the film 101, slitting the paper board 102, conveying the paper board 102, coating the paper board 102 with glue and laminating the paper film, and finally forming the formed product shown in fig. 6.

The film 101 is cut and the conveying assembly 70 conveys the film 101 to the conveying member 10, and the adsorption member 50 adsorbs the film 101 on the outer wall of the conveying member 10 and drives the film 101 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 of film 101 is disposed in the first roller 71, and 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 a corresponding motor (not shown), so as to convey the film 101 to the conveyor 10.

With continued reference to figure 1, slitting assembly 80 includes a slitting blade 81 and a corresponding drive mechanism (not shown) coupled to slitting blade 81 and capable of driving up and down movement or circular movement of slitting blade 81 relative to conveyor 10 to cut film 101 at the appropriate location. Illustratively, the slitting knife 81 is required to slit the film 101 twice, and after the film 101 is cut for the first time, the conveying member 10 conveys the film 101, and after waiting for the appropriate film 101 size, the second knife is cut. When the film 101 is conveyed to the conveying member 10, the cutter cuts the film 101 at a designated position, the conveying member 10 drives the film 101 to rotate downwards, and when the paper board 102 is conveyed below the conveying member 10, the film 101 is stripped from the conveying member 10 due to the strong viscosity of the glue and is adhered to the paper board 102.

Slitting of the paperboard 102 refers to slitting of the paper or paperboard 102 into sheets of a desired size. The paper conveying plate 102 means that the paper plate 102 is conveyed by the conveyor belt 92 to the lower part of the gluing roller for gluing. Exemplarily, as shown in fig. 1, the conveying assembly 90 includes a supporting body 91 and a conveying belt 92, the supporting body 91 is used as a basic supporting component, and the structure thereof can be set according to actual requirements, which is not described herein again. The slitting assembly 80 can be mounted on the supporting body 91 and can move up and down relative to the supporting body 91 to slit the film 101 on the conveying member 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 conveying member 10 under the driving of the conveyor belt 92.

Here, the principle of transferring the cardboard 102 by glue and the cylinder 12 is that glue is transferred to the cardboard 102 by the glue strip on the glue cylinder 12 (not shown), and only the glue strip (including width and distance) suitable for the size of the cardboard 102 is attached to the glue roller, and during the rotation of the glue roller, the glue strip is glued by the glue groove, so that partial coating of the glue can be realized, and further, the partial combination of the film 101 and the cardboard 102 is realized, and the part of the cardboard 102 without glue is in a separated state.

The paper laminating means that after the cardboard 102 is glued, the cardboard 102 is conveyed continuously by the conveyor belt 92, and when the cardboard 102 is conveyed to the lower part of the conveyor 10, the film 101 is peeled off from the conveyor 10 and is adhered to the cardboard 102 due to the strong adhesion of the glue. The film 101 is bonded to the cardboard 102 with glue portions and without glue portions separated, i.e. assumes the configuration shown in fig. 7.

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 a different length, the size of the length W of the film 101 is not limited, and can be adjusted by the adjusting assembly 40, so that the setting is performed according to the actual required packaged product, an arbitrary ratio between the film 101 and the paper board 102 is realized, and even the adjustment of the film-paper ratio can be realized in a non-stop state.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure 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 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, which falls 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 (10)

1. A paper laminating apparatus for laminating a paperboard (102) with a film (101), characterized in that it comprises:

a conveyor (10) for conveying the film (101) in a rolling manner; an opening (11) which extends along the axial direction of the conveying piece (10) and is communicated with the interior of the conveying piece (10) is formed in the outer wall of the conveying piece (10);

the flip cover (20) is arranged at the opening (11), the flip cover (20) is rotatably connected with the conveying piece (10) and can be turned relative to the conveying piece (10) so that at least part of the flip cover (20) protrudes out of the outer wall surface of the conveying piece (10), the film (101) on the conveying piece (10) is jacked up to extend the film (101) in the direction away from the outer wall surface of the conveying piece (10), and the flip cover (20) is in a jacked state so that the length ratio of the film (101) to the paperboard (102) is larger than 1; the flip cover (20) is turned towards the opening (11) and returns to a state of not protruding out of the outer wall surface of the conveying member (10), and the flip cover (20) is in a retracted state, so that the length ratio of the film (101) to the paperboard (102) is equal to 1;

an adjusting assembly (40) comprising a first elastic member (41) and a second elastic member (42), wherein the first elastic member (41) is arranged between the flip (20) and the transmission member (10) and used for pushing the flip (20) to turn so as to jack up the film (101), and one end of the second elastic member (42) is connected with the flip (20) and used for pulling the flip (20) so as to enable the flip (20) to turn towards the opening (11);

and the driving component (30) is connected with the other end of the second elastic piece (42), and the driving component (30) pulls the second elastic piece (42) so as to change the elastic force difference of the second elastic piece (42) and the first elastic piece (41) and adjust the overturning angle of the flip cover (20).

2. The paper film laminating apparatus according to claim 1, wherein the first elastic member (41) is a first spring and the second elastic member (42) is a second spring.

3. The paper film laminating apparatus according to claim 1, wherein said first elastic member (41) is provided in a plurality of numbers, and said first elastic members (41) are arranged at intervals in an axial direction of said conveying member (10).

4. The paper film laminating apparatus according to claim 3, wherein the number of the first elastic members (41) is two, and two first elastic members (41) are provided at both ends of the lid (20) in the axial direction of the conveying member (10).

5. The paper film laminating apparatus according to claim 1, further comprising an adsorbing member (50) and a cover sheet (60); a plurality of exhaust holes are formed in the outer wall surface of the conveying piece (10) and the turnover cover (20); the adsorption part (50) adsorbs a film (101) to the outer wall of the conveying part (10) and the flip cover (20) through the exhaust hole;

the cover sheet (60) is arranged in the conveying piece (10) and is connected with the driving component (30) so as to cut off the adsorption air flow formed by the adsorption piece (50) at the air exhaust hole corresponding to the cover sheet (60) under the driving of the driving component (30);

wherein one end of the first elastic piece (41) is connected with the inner wall of the flip (20) in an abutting mode, and the other end of the first elastic piece is connected with the cover sheet (60) at the position of the opening (11) in an abutting mode.

6. The paper film laminating apparatus of claim 5, wherein said driving assembly (30) comprises a driving unit (31) and a transmission unit (32), said transmission unit (32) being connected to said driving unit (31);

the second elastic piece (42) is connected with the transmission unit (32), and the drive unit (31) drives the transmission unit (32) to move so as to pull the second elastic piece (42) when moving;

the cover plate (60) is connected with the transmission unit (32), and the driving unit (31) drives the cover plate (60) to shield the corresponding exhaust hole through the transmission of the transmission unit (32) so as to cut off the adsorption air flow at the exhaust hole.

7. The paper film laminating apparatus of claim 6, wherein the driving unit (31) comprises a driving member (311) and a driving shaft (312), the driving member (311) is used for driving the driving shaft (312) to rotate;

the transmission unit (32) comprises a pull rod (321), one end of the pull rod (321) is connected with the driving shaft (312), the other end of the pull rod extends along the radial direction of the transmission member (10) and is connected with one end, far away from the turnover cover (20), of the second elastic member (42), and the driving shaft (312) drives the pull rod (321) to rotate when rotating so as to pull or compress the second elastic member (42).

8. The paper film laminating apparatus of claim 7, wherein the transmission unit (32) further comprises a turntable (322) and a transmission rod (324), the turntable (322) is connected with the driving shaft (312), and the driving shaft (312) drives the turntable (322) to rotate when rotating;

the turntable (322) is provided with a track groove (323), one end of the transmission rod (324) is limited in the track groove (323) and moves along the track groove (323), and the other end of the transmission rod is connected with the cover plate (60), so that the cover plate (60) is far away from or close to the circumferential side wall of the conveying piece (10) along the radial direction of the conveying piece (10).

9. The paper film laminating apparatus of claim 8, wherein the transmission unit further comprises a limiting rod (325), and the limiting rod (325) is disposed in the track groove (323) and can slide along the track groove (323), and is connected with one end of the transmission rod (324) far away from the cover plate (60).

10. The paper film laminating apparatus according to claim 1, wherein when said flip cover (20) is in a lifted state, a length of said first elastic member (41) after being deformed is X, a distance between a connection point of said first elastic member (41) and said flip cover (20) and a connection point of said flip cover (20) and said conveying member (10) is L2, a distance between a connection point of said second elastic member (42) and said flip cover (20) and a connection point of said flip cover (20) and said conveying member (10) is L1, and a calculation formula of a length W of said film (101) lifted and extended is:

W＝L ₁ X/L ₂ (1)。

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