CN114311950A

CN114311950A - Paper film laminating equipment

Info

Publication number: CN114311950A
Application number: CN202210218890.8A
Authority: CN
Inventors: 傅秋佳; 沈永水; 梁奕昆
Original assignee: Zhejiang Dahua Technology Co Ltd
Current assignee: Zhejiang Dahua Technology Co Ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-04-12
Anticipated expiration: 2042-03-08
Also published as: CN114311950B

Abstract

The invention relates to the field of packaging, and discloses a paper film laminating device. The paper film laminating equipment comprises a supporting device and a film absorbing roller, wherein the film absorbing roller is arranged on the supporting device; the film suction roller comprises a driving mechanism, a top cover component and a body, wherein the top cover component comprises a turnover cover, and the turnover cover is in transmission connection with the driving mechanism; the top cover component has a folding state and a jacking state relative to the body, and when the top cover component is in the folding state, the turnover cover is spliced with the body to form the outer side surface of the film absorbing roller so as to enable the film and the paperboard to be in equal-length covering; when the top cover component is in a jacking state, the outer surface of the turnover cover is at least partially higher than the outer surface of the body and is used for jacking the film so as to enable the film and the paperboard to be combined in unequal lengths; the driving mechanism is used for driving the top cover assembly to be switched between the retracted state and the jacking state. The invention can realize the non-stop switching of film paper with equal length or unequal length on the basis of the film suction roller.

Description

Paper film laminating equipment

Technical Field

The invention 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. 1, 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 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 ratio 1:1 lamination, namely equal-length film lamination. The following two schemes are adopted in the equipment and production process industry which can realize the 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 film stacking direction which is commonly used in the industry is completely abandoned; the scheme can realize the non-stop switching between the non-isometric film coating and the isometric film coating of the film suction roller; however, this solution requires the packaging manufacturer to completely rebuild a new production facility, and abandons the film suction roller method adopted on the equal-length film covering, which is common in the industry.

The second scheme is that in the mode of film absorbing 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 paper are coated by convex-concave matching. However, the uneven-length film coating is realized by the concave-convex matching of the two film absorbing rollers, when the film is required to be coated with equal length, the production line is stopped to replace the traditional roller, and huge production equipment consumption is caused.

Therefore, how to design the non-isometric film coating scheme not only falls on the design direction of the film suction roller adopted by a packaging manufacturer in the industry, but also can solve the problem that the traditional isometric film coating and the existing non-isometric film coating cannot be replaced without stopping, and becomes a key technology for restricting the upgrading iteration of the packaging industry.

Disclosure of Invention

The invention discloses paper film laminating equipment which is used for realizing non-stop switching of film paper with equal length or unequal length on the basis of a film suction roller.

In order to achieve the purpose, the invention provides the following technical scheme:

a paper film laminating device comprises a supporting device and a film suction roller, wherein the film suction roller is arranged on the supporting device; the film suction roller comprises a driving mechanism, a top cover component and a body, wherein the top cover component comprises a turnover cover, and the turnover cover is in transmission connection with the driving mechanism;

the top cover assembly has a retracted state and a jacking state relative to the body, and when the top cover assembly is in the retracted state, the turnover cover is spliced with the body to form the outer side surface of the film absorbing roller so as to enable the film and the paperboard to be covered in equal length; when the top cover component is in the jacking state, the outer surface of the flip cover is at least partially higher than the outer surface of the body and is used for jacking the film so as to enable the film and the paperboard to be combined in unequal lengths;

the driving mechanism is used for driving the top cover assembly to switch between the retracted state and the jacking state.

In the paper film laminating equipment, when the film does not need to be extended, the top cover assembly is in a retracted state, the turnover cover and the body are spliced to form the outer side face of the film suction roller, and when the film is conveyed to the film suction roller, the film suction roller adsorbs the film on the outer surface of the film suction roller, so that equal-length laminating of the film paper is realized. When the film needs to be prolonged, the top cover component is switched to a jacking state from a packing state under the action of the driving mechanism, at least part of the outer surface of the flip is higher than the outer surface of the body, the flip jacks up the film to drive the film to move forwards, so that the film is stacked on the front side of the flip under the action of gravity, the stacked extension of the film is realized, part of the film on the front side of the flip is still adsorbed on the body, and the film is driven to continue to be conveyed forwards. Therefore, the paper film laminating equipment can be used for producing products with the film-paper ratio of 1:1, namely the film-paper length is equal, and also can be used for producing products with the film-paper ratio of more than 1:1, namely the film-paper ratio is unequal, can be flexibly switched between two states, can be switched without stopping, and is wide in application range.

In some embodiments, the film suction roller comprises an outer roller and a suction roller positioned inside the outer roller, and a plurality of air holes are arranged on the outer roller;

the outer roller is provided with an opening matched with the turnover cover in shape, and when the top cover assembly is in the retracted state, the outer surface of the turnover cover and the outer surface of the outer roller are spliced to form the outer side surface of the film absorbing roller.

In some embodiments, the turnover cover is multiple, and the turnover covers are distributed annularly along the circumference of the outer roller.

In some embodiments, when the top cover assembly is in the lifted state, along the conveying direction of the film suction roller, the outer surface of one side of the turnover cover facing away from the conveying direction of the film suction roller is flush with the outer surface of the outer roller.

In some embodiments, the top cover assembly further comprises at least one cover sheet, the cover sheet is positioned between the outer roller and the suction roller, and the cover sheet is in transmission connection with the driving mechanism and used for blocking the adsorption air flow of the opening when the top cover assembly is in the jacking state.

In some embodiments, when the top cover assembly is in the jacking state, the outer surface of the cover sheet is attached to the inner surface of the outer roller to block the air flow absorbed by the opening.

In some embodiments, the flap has a plurality of air holes disposed therein, the flap being configured to absorb a membrane when the lid assembly is in the stowed state.

In some embodiments, the drive mechanism comprises: the device comprises a motor, a first transmission assembly and a second transmission assembly;

the motor is in transmission connection with the cover plate through the first transmission assembly and is used for driving the cover plate to be close to or far away from the outer roller so as to close or open the opening of the outer roller;

the second transmission components correspond to the turnover covers one by one, and the motor is in transmission connection with the turnover covers through the second transmission components.

In some embodiments, the first transmission assembly comprises: the track blocks and the connecting rods correspond to the cover plates one by one;

the motor is in transmission connection with the track block and is used for driving the track block to rotate around the axis direction of the track block, and the axis direction of the track block is parallel to or coincident with the axis direction of the film suction roller;

one end of the connecting rod is connected with the cover plate, and the other end of the connecting rod is connected with a connector;

the track block is provided with arc-shaped track grooves which are in one-to-one correspondence with the connectors, and when the track block rotates around the axis of the track block, the connectors can slide along the arc-shaped track grooves.

In some embodiments, the second transmission assembly comprises: the gear pair, the crank connecting rod and the connecting shaft are arranged on the crank connecting rod;

the motor passes through the gear pair with the one end transmission of crank connecting rod is connected, the crank connecting rod deviates from gear pair one end is passed through the connecting axle with flip transmission is connected.

In some embodiments, a link of the crank links that is connected to the connecting shaft is a telescoping rod.

Drawings

FIG. 1 is a schematic view of a paper film laminated product;

fig. 2 a-2 b are production process diagrams of a paper film laminating apparatus according to an embodiment of the present invention;

fig. 3 is a schematic production diagram of a paper film laminating apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a film suction roller in a paper film laminating apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view of the suction roll of FIG. 4;

FIG. 6 is a schematic view of the suction roller and the cover sheet of FIG. 4 engaged;

FIG. 7 is a schematic view of the flap of FIG. 4 engaged with a first drive assembly;

fig. 8 is a schematic structural diagram of a film suction roller when a top cover assembly in a paper film laminating device provided by an embodiment of the present invention is in a retracted state;

fig. 9 is a schematic structural view of a film suction roller in a paper film laminating apparatus according to an embodiment of the present invention, when a top cover assembly is in a lifted state;

fig. 10 is a schematic diagram illustrating an extension of a film stack in a paper film laminating apparatus according to an embodiment of the present invention.

Icon: 100-a base; 200-a film transfer device; 300-cutting knife; 400-body; 600-a cardboard transport; 700-film; 800-paperboard; 210-a first roller; 220-a second roller; 230-a third roller; 410-an outer roller; 420-cartridge cover; 430-a suction roll; 510-a cap assembly; 520-a drive mechanism; 511-flip; 512-cover plate; 521-a motor; 522-a first gear; 523-track block; 524-connecting rod; 525-a second gear; 526-crank link; 527-connecting shaft; 523 a-arc track groove; 524 a-connecting head; 524 b-a fixing bar; 526 a-telescoping rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 3, an embodiment of the present invention provides a paper film laminating apparatus including: the film suction roller is arranged on the supporting device; the film suction roller comprises a body 400, a top cover assembly 510 and a driving mechanism 520; the top cover component 510 comprises a flip cover 511, and the flip cover 511 is in transmission connection with the driving mechanism 520; the top cover assembly 510 has a retracted state and a jacked state relative to the body 400, when the top cover assembly 510 is in the retracted state, the flip cover 511 is spliced with the body 400 to form the outer side surface of the film suction roller, so that the film and the paperboard are overlapped in equal length; when the lid assembly 510 is in the lifted state, the outer surface of the lid 511 is at least partially higher than the outer surface of the body 400 for lifting the film 700 so that the film and the paperboard are not equally long; a drive mechanism 520 is drivingly connected to the cap assembly 510 for driving the cap assembly 510 between the stowed state and the cocked state.

In a possible implementation manner, the film absorbing roller is cylindrical, and the outer side surface of the film absorbing roller can be understood as the outer surface of the film absorbing roller, which is in contact with the thin film. The outer side surface of the film suction roller formed by splicing the flip cover 511 and the body 400 can be understood as follows: the flip 511 is attached to the outer side of the body 400, or the body 400 has an opening, and the flip 511 is embedded in the opening.

With continued reference to fig. 3, the paper film laminating apparatus further includes a supporting device, a film transfer device 200, a slitting device, and a paper board transfer device 600; the support device includes a base 100; the film conveying device 200 and the film suction roller are both arranged on the base 100, and the film conveying device 200 is used for conveying the film 700 to the film suction roller; the cutting device is mounted on the base 100 and used for cutting the film 700, and along the conveying direction of the film, the cutting device can be positioned behind the film suction roller or in front of the film suction roller; the suction roll is used to transfer the film 700 to the paperboard transfer device 600.

In the above paper film laminating apparatus, when the film 700 does not need to be extended, the top cover assembly 510 is in a retracted state, the film conveying device 200 conveys the film 700 to the film suction roller, when the film 700 is conveyed to the film suction roller, the film suction roller adsorbs the film 700 onto the outer surface of the film suction roller, the slitting device can cut the film 700 at a designated position, the film suction roller drives the film 700 to rotate to the paper board conveying device 600, and the film 700 and the coated paperboard 800 conveyed by the paper board conveying device 600 are laminated. When the film 700 needs to be extended, the top cover assembly 510 is switched from the retracted state to the jacked state under the action of the driving mechanism 520, the outer surface of the flip 511 is at least partially higher than the outer surface of the body 400, the flip 511 jacks up the film 700 to drive the film 700 to move forward, so that the film 700 is stacked on the front side of the flip 511 under the action of gravity, the stacked extension of the film 700 is realized, and part of the film 700 on the front side of the flip 511 is still adsorbed on the film adsorption roller to drive the film 700 to continue to convey forward. Therefore, the paper film laminating equipment can be used for producing products with film-paper ratio of 1:1, namely the film paper is equal in length, and also can be used for producing products with film-paper ratio of more than 1:1, namely the film paper is unequal in length, can be flexibly switched between two states, can be switched without stopping, and is wide in application range.

In some embodiments, referring to fig. 2a, the production process of paper film lamination mainly comprises: film cutting, film extending, paper board cutting, paper conveying board, paper board gluing and paper film laminating.

The film is cut by the film conveying device to convey the film to the film suction roller, the film suction roller adsorbs the film and drives the film to convey forwards, and the film is cut by the cutting device when the film is suitable. Illustratively, as shown in fig. 3, a roll of film 700 is placed on the first roller 210, the film 700 passes between the second roller 220 and the third roller 230, wherein the second roller 220 and the third roller 230 are driven by a motor (not shown) to rotate clockwise, so as to drive the film 700 to forward to a film suction roller, and a slitting knife 300 is disposed above the film suction roller, wherein the slitting knife 300 can move up and down or move circularly, which is not limited herein. The slitting knife 300 needs to slit the film 700 twice, and after the film 700 is cut off for the first time, the film suction roller transmits the film 700, and after the film 700 is of a proper size, the second knife is cut off. When the film 700 is conveyed to the film suction roller, the cutter cuts off the film 700 at a designated position, the film suction roller drives the film 700 to rotate downwards, and when the paper board 800 is conveyed to the lower part of the film suction roller, the film 700 is peeled off from the film suction roller and is bonded with the paper board 800 due to strong viscosity of glue.

Paperboard slitting refers to slitting paper or paperboard 800 into sheets of the desired size.

The feeding board means that the paper board 800 is fed by a conveyor belt and fed under a glue roller for glue application, and the arrow direction in fig. 2b is the feeding direction.

The cardboard rubber coating utilizes roller rendition principle, like fig. 2b, through the adhesive tape on the rubber coating roller with glue rendition to cardboard 800, only need paste the adhesive tape (including width and distance) that is fit for cardboard 800 size on the rubber coating roller, at rubber coating roller pivoted in-process, the adhesive tape passes through the gluey groove rubberizing, can realize the partial coating of glue, and then realizes that film 700 and cardboard 800's local laminating closes.

The paper film lamination means that after the paper board 800 is glued, as shown in fig. 3, it is conveyed to the left, and when the paper board 800 is conveyed to the lower part of the film suction roller, the film 700 is peeled off from the film suction roller and is adhered to the paper board 800 due to the strong adhesion of the glue. The film paper has the glue part combined and has no glue part separated. And laminating the paper film after passing through the film absorbing roller.

In some embodiments, the suction roll includes an outer roll 410 and a suction roll 430 positioned inside the outer roll 410, and a plurality of air holes are arranged on the outer roll 410.

In one possible implementation, referring to fig. 4-7, the body 400 includes an outer roller 410, a cover 420 at both ends of the outer roller 410, and a suction roller 430 inside the outer roller 410; when the film 700 is transferred to the film suction roller, the inner suction roller 430 sucks air, and the film 700 is sucked on the outer surface of the outer roller 410 through the air holes of the outer roller 410.

In some embodiments, the lid assembly 510 includes at least one flip cap 511, and the flip cap 511 is drivingly connected to the drive mechanism 520; when the cap assembly 510 is in the stowed state, the outer surface of the flip cover 511 is no higher than the outer surface of the outer roller 410; when the cap assembly 510 is in the lifted state, the outer surface of the lid 511 is at least partially higher than the outer surface of the outer roller 410. Illustratively, when the turning cover 511 is plural, the plural turning covers 511 are annularly distributed along the circumferential direction of the outer roller 410.

In some embodiments, the flip 511 is located outside the outer roller 410, when the top cover assembly 510 is in the retracted state, the flip 511 is attached to the outer surface of the outer roller 410, when the top cover assembly 510 is in the lifted state, the flip 511 lifts the film 700 under the action of the driving mechanism 520, the film 700 is pulled to be driven forwards, and the film 700 near the flip 511 is not adsorbed because the flip 511 has no air holes. Illustratively, referring to fig. 3, when the flip 511 is located at the upper part of the outer roller 410, the film 700 in front of the flip 511 is located at the side part of the film suction roller, and the front part of the film 700 is sucked to the surface of the outer roller 410, the lifted film 700 is stacked under the gravity, and the stack extension is realized.

In one possible implementation, when the top cover assembly 510 is in the lifted state, the flip cover 511 is lifted under the action of the driving mechanism 520 to lift the film 700, and the flip cover 511 can be lifted by the whole structure, compared with the retracted state, the distance between the outer surface of the flip cover 511 and the outer surface of the film suction roller is increased; alternatively, when the front portion of the entire structure of the lid 511 is lifted in the film 700 feeding direction and the rear portion of the lid 511 is not moved or lowered, that is, the lid 511 is turned in the direction opposite to the film suction roller feeding direction, only the distance between the outer surface of the front portion of the lid 511 and the outer surface of the outer roller 410 is increased in comparison with the stored state.

In some embodiments, when the top cover assembly 510 is in the lifted state, the outer surface of the side of the flip cover 511 facing away from the conveying direction of the film suction drum is flush with the outer surface of the outer drum 410 along the conveying direction of the film suction drum.

In one possible implementation, when the cap assembly 510 is in the raised state, the flip cover 511 is lifted by the driving mechanism 520, i.e., the outer surface of the rear portion of the flip cover 511 is flush with the outer surface of the outer roller 410, and the distance between the outer surface of the front portion of the flip cover 511 and the outer surface of the outer roller 410 is increased, compared to the retracted state. The film 700 at the position where the lid 511 meets the outer roller 410 is also surely wrinkled or pressed while the lid 511 lifts the film 700.

Note that, in order to satisfy the requirement that the film 700 is smoothly pulled forward when the lid 511 is lifted, the suction near the lid 51 needs to be reduced or cut off.

In some embodiments, the area of the outer roller 410 corresponding to the flip cover 511 has no suction function, i.e. no air hole is formed on the flip cover 511 and the outer roller 410, when the top cover assembly 510 is in the lifted state, the whole structure of the flip cover 511 is lifted or turned in the direction opposite to the conveying direction of the film suction roller to lift the film 700.

In some embodiments, the lid assembly 510 further comprises at least one cover sheet 512, the cover sheet 512 is positioned between the outer roller 410 and the suction roller 430, and the cover sheet 512 is in transmission connection with the driving mechanism 520 for blocking the suction airflow at the lid 511 when the lid assembly 510 is in the lifted state. Illustratively, when the cover sheet 512 is plural, the plural cover sheets 512 are annularly distributed along the circumferential direction of the suction roller 430.

In a possible implementation manner, the cover sheet 512 cooperates with the flip cover 511, when the top cover assembly 510 is in a lifted state, the whole structure of the flip cover 511 is lifted or turned to the opposite direction of the conveying direction of the film suction roller, and the cover sheet 512 is lifted to block the suction air flow at the flip cover 511.

In some embodiments, the outer roller 410 has an opening matching with the shape of the flip cover 511, and when the cover assembly 510 is in the retracted state, the outer surface of the flip cover 511 and the outer surface of the outer roller 410 are spliced to form the outer side of the film suction roller.

In some embodiments, the outer roller 410 has an opening matching the shape of the lid 511, and when the top cover assembly 510 is in the lifted state, the outer surface of the cover sheet 512 is attached to the inner surface of the outer roller 410 to block the suction airflow of the opening.

In one possible implementation, the outer roller 410 has an opening with a shape matching with the flip 511, and the flip 511 can be lifted or turned in the opposite direction of the conveying direction of the film suction roller within the opening. When the top cover component 510 is in the retracted state, the flip cover 511 is retracted into the opening of the outer roller 410, and when the top cover component 510 is in the lifted state, the flip cover 511 is lifted up under the action of the driving mechanism 520 or overturns in the direction opposite to the conveying direction of the film suction roller to lift up the film 700, so as to pull the film 700 to transmit forwards, and simultaneously, the cover sheet 512 is lifted up under the action of the driving mechanism 520 to close the opening of the outer roller 410, so as to block the air flow absorbed by the opening. It can be understood that, referring to fig. 3, the turning cover 511 is turned over in the opposite direction of the conveying direction of the film suction roller at the opening, and at this time, the turning cover 511 is located at the upper portion of the outer roller 410, the film 700 in front of the turning cover 511 is located at the side portion of the film suction roller, and at the same time, the front portion of the film 700 is sucked to the surface of the outer roller 410, and the film 700 lifted up is stacked under the action of gravity, so that the stack extension is realized.

In some embodiments, flap 511 has a plurality of air holes disposed therein, and flap 511 is adapted to absorb membrane 700 when cover assembly 510 is in the stowed position.

In a possible implementation manner, a plurality of air holes are distributed on the flip 511, and the air holes can be used for adsorbing the film 700, when the film 700 does not need to be extended, referring to fig. 8, the flip 511 and the outer roller 410 are spliced to form a complete outer surface of the film adsorbing roller, and when the film 700 needs to be extended, referring to fig. 9, the driving mechanism 520 drives the flip 511 to flip in the opposite direction of the conveying direction of the film adsorbing roller, and simultaneously drives the cover plate 512 to lift up and block the opening of the outer roller 410, so as to realize linkage of the flip 511 and the cover plate 512.

It should be noted that the main function of the driving mechanism 520 is to drive the flip 511 to move up and down or to turn over in the direction opposite to the conveying direction of the film suction roller, and also to drive the cover plate 512 to move up and down, so that any structure capable of achieving the above functions can be referred to as the driving mechanism 520 in this embodiment.

In some embodiments, the drive mechanism 520 includes: the motor 521, the first transmission assembly and the second transmission assembly; the motor 521 is in transmission connection with the cover sheet 512 through a first transmission assembly and is used for driving the cover sheet 512 to approach or depart from the outer roller 410 so as to close or open the opening of the outer roller 410; the second transmission components correspond to the flip covers 511 one by one, and the motor 521 is in transmission connection with the flip covers 511 through the second transmission components. For example, the motor 521 may be a servo motor 521, and the control is precise.

In some embodiments, the driving mechanism 520 includes a motor 521 for providing a driving force, a first driving component in driving connection with the cover plate 512, and a second driving component in driving connection with the lid 511. Illustratively, the cover plates 512 correspond to the flip covers 511 one by one, the first transmission components correspond to the cover plates 512 one by one, and the second transmission components correspond to the flip covers 511 one by one; or, the cover sheets 512 correspond to the flip covers 511 one by one, the first transmission component drives all the cover sheets 512 to lift or retract at the same time, and the second transmission component corresponds to the flip covers 511 one by one.

In some embodiments, the first transmission assembly comprises: track blocks 523 and connecting rods 524 corresponding to the cover plates 512 one to one; the motor 521 is in transmission connection with the track block 523 and is used for driving the track block 523 to rotate around the axis direction of the track block, and the axis direction of the track block 523 is parallel to or coincident with the axis direction of the film suction roller; one end of the connecting rod 524 is connected with the cover plate 512, and the other end is connected with a connector 524 a; the track block 523 is provided with arc track grooves 523a corresponding to the connection heads 524a, and when the track block 523 rotates around its own axis, the connection heads 524a can slide along the arc track grooves 523 a.

In a possible implementation manner, referring to fig. 6 and 7, an axis of the track block 523 coincides with an axis of the suction roller 430, an arc track groove 523a is provided on the track block 523, and the arc track groove 523a, the connecting head 524a, the connecting rod 524, and the cover plate 512 correspond to each other one to one. The arc-shaped track groove 523a comprises a first end close to the center of the track block 523 and a second end far away from the center of the track block 523, when the top cover assembly 510 is in a retracted state, the connecting head 524a is positioned at the first end of the arc-shaped track groove 523a, the cover sheet 512 is retracted, and the cover sheet 512 is not contacted with the outer roller 410; when the cap assembly 510 is in the lifted state, the connection head 524a is located at the second end of the arc-shaped track 523a, the flap 512 is lifted, and the outer surface of the flap 512 contacts the inner surface of the outer roller 410. As shown in fig. 6, there are 6 cover sheets 512, 6 cover sheets 512 are annularly distributed along the circumferential direction of the suction roller 430, there are 6 connecting rods 524 and connecting heads 524a, and as shown in fig. 7, there are 6 track grooves 523a on the track block 523. It can be understood that when a plurality of cover sheets 512 are in the retracted state, a gap is formed between two adjacent cover sheets 512 to realize the suction effect of the suction roller 430, so that the film 700 can be sucked on the surface of the outer roller 410; when the cover sheets 512 are switched from the retracted state to the lifted state, the gap between two adjacent cover sheets 512 is gradually increased; when the plurality of cover sheets 512 are in a lifted state, the outer surfaces of the plurality of cover sheets 512 are each in contact with the inner surface of the outer drum 410.

In some embodiments, referring to fig. 6, the rotation shaft of the suction roller 430 is provided with fixing rods 524b extending in the radial direction, and the fixing rods 524b are in one-to-one correspondence with the connecting rods 524 to provide a guiding function for the connecting rods 524; illustratively, the fixing rod 524b is provided with a guide slot slidably connected to the connecting rod 524, and the extension direction of the guide slot is parallel to the extension direction of the fixing rod 524 b.

In some embodiments, a plurality of air holes are arranged on the cover sheet 512, and the plurality of air holes are located on the cover sheet 512 corresponding to the area outside the opening of the outer roller 410, and when the cover sheet 512 is in a lifted state, the air holes on the cover sheet 512 are communicated with the air holes on the outer roller 410.

In some embodiments, the second transmission assembly comprises: gear pair, crank link 526 and connecting shaft 527;

the motor 521 is in transmission connection with one end of the crank connecting rod 526 through a gear pair, and one end of the crank connecting rod 526, which is far away from the gear pair, is in transmission connection with the flip cover 511 through a connecting shaft 527.

In some embodiments, the rear side of the flip cover 511 is hinged to the outer roller 410 in the conveying direction of the film suction roller, the front side of the flip cover 511 is connected to the connection shaft 527, and the crank link 526 lifts the front side of the flip cover 511 through the connection shaft 527 when the cover assembly 510 is in the lifted state.

In a possible implementation mode, the first transmission assembly and the second transmission assembly are driven by the same motor 521, so that production equipment is simplified, and equipment cost is reduced. The gear pair comprises a first gear 522 and a second gear 525, the first gear 522 is in transmission connection with the motor 521, the first gear 522 is coaxially connected with the track block 523, and the axial direction of the first gear 522 is parallel to or coincided with the axial direction of the film suction roller; the second gear 525 is in meshed transmission with the first gear 522; one end of the crank connecting rod 526 is coaxially connected with the second gear 525, the other end is connected with the turning cover 511 through a connecting shaft 527, and the axial direction of the connecting shaft 527 is parallel to the axial direction of the film suction roller. The motor 521 can precisely control the lifting angle of the flip 511 through the second transmission component.

In some embodiments, the first gear 522 is sleeved outside the track block 523, the motor 521 drives the track block 523 and the first gear 522 to rotate simultaneously, the connector 524a slides along the arc-shaped track groove 523a, power is transmitted to the cover plate 512 through the connecting rod 524, and the cover plate 512 is driven to be folded or lifted; meanwhile, the first gear 522 drives the second gear 525 to rotate, the crank connecting rod 526 coaxially connected with the second gear 525 transmits power to the connecting shaft 527, and the connecting shaft 527 drives the turning cover 511 to turn in the direction opposite to the conveying direction of the film suction roller, so as to realize folding or lifting. The film-paper ratio can be flexibly adjusted by controlling the opening and closing of the motor 521.

In some embodiments, the first gear 522 is a unitary structure with the track block 523, and the first gear 522 is located outside the track block 523. For example, the first gear 522 may be welded to the track block 523, or an arc track slot 523a may be directly disposed on the first gear 522, that is, the first gear 522 may be reused as the track block 523. Referring to fig. 8 and 9, the motor 521 drives the track block 523 and the first gear 522 to rotate simultaneously, the connector 524a slides along the arc track slot 523a, power is transmitted to the cover plate 512 through the connecting rod 524, and the cover plate 512 is driven to fold or lift; meanwhile, the first gear 522 drives the second gear 525 to rotate, the crank connecting rod 526 coaxially connected with the second gear 525 transmits power to the connecting shaft 527, and the connecting shaft 527 drives the turning cover 511 to turn in the direction opposite to the conveying direction of the film suction roller, so as to realize folding or lifting. The film-paper ratio can be flexibly adjusted by controlling the opening and closing of the motor 521.

In a possible implementation manner, referring to fig. 8-10, when the flip 511 needs to be lifted, the motor 521 controls the first gear 522 to rotate clockwise (in the direction of the dotted line in fig. 9), after the first gear 522 rotates, the connector 524a moves from the position in fig. 8 to the position in fig. 9, which drives the cover 512 to expand and open, the outer surface of the cover 512 coincides with the inner surface of the outer roller 410, and at the same time, the first gear 522 moves to drive the second gear 525 to rotate counterclockwise, which drives the crank link 526 to jack the connecting shaft 527 upward, thereby jacking the flip 511. When the flip cover 511 is lifted, the overlapping position of the cover sheet 512, the flip cover 511 and the rear side of the flip cover 511 is an entity, the adsorption effect of the air suction roller 430 is cut off when the flip cover 511 is overlapped, as shown in fig. 10, part A does not suck air, the flip cover 511 drives the film 700 to be pulled forwards, meanwhile, the rest of the cover sheet 512 is provided with holes, as shown in fig. 10, part B still sucks air, the film 700 on the front side of the cover sheet 512 is adsorbed on the roller, and the film 700 is smoothly stacked and extended. In some embodiments, the connecting rod of the crank connecting rod 526 connected to the connecting shaft 527 is a telescopic rod 526 a.

In one possible implementation, when the connecting head 524a is in the position shown in fig. 8, i.e., the connecting head 524a is located at the first end of the arc-shaped track 523a, the cover plate 512 is not expanded, and when the connecting head 524a is in the position shown in fig. 9, the cover plate 512 is expanded to the maximum angle, i.e., the outer surface of the cover plate 512 is overlapped with the inner surface of the outer roller 410, and at this time, the second gear 525 is set to drive the crank link 526 to lift the flip cover 511 upwards by the minimum angle of the flip cover 511, i.e., the length of the film 700 can be lengthened at the minimum. When different flip 511 angles need to be set, the flip 511 lifting angle theta is controlled by adjusting the length of the crank connecting rod 526, so that different lengths of the film 700 are prolonged, and the film-to-paper ratio in the paper film laminating equipment is flexibly adjusted. Illustratively, when the lifting angle θ of the flip cover 511 needs to be increased, the length of the telescopic rod 526a is increased; when the lifting angle theta of the flip cover 511 needs to be reduced, the length of the telescopic rod 526a is shortened.

It should be noted that the telescopic rod 526a is mainly used to adjust the lifting angle of the flip 511 by extending and shortening, and therefore, any structure capable of achieving the above functions can be referred to as the telescopic rod 526a in this embodiment.

In some embodiments, the extension rod 526a is an extension rod 526a that is controlled by a bolt, and when the bolt is locked, the length of the extension rod 526a cannot be adjusted, and when the bolt is loosened, the length of the extension rod 526a can be adjusted at will.

In some embodiments, the outer roller 410 is provided with a plurality of liftable flip covers 511, so that the film suction roller can rotate for one circle, the accumulation and extension of a plurality of films 700 can be completed, and the production efficiency is improved.

When the paper film laminating equipment provided by the embodiment of the invention is used for production, if the film 700 needs to be extended, the turning cover 511 is lifted when the film is fed, the turning cover 511 pulls the film 700 forward, and the film 700 is stacked and extended when the turning cover 511 is retracted again, and the turning cover 511 can be provided with different lifting angles according to the length of the film 700 which needs to be extended. According to the embodiment of the invention, the length of the film 700 in the paper film laminating piece can be flexibly lengthened by setting the lifting angle of the turnover cover 511, so that the non-1: 1 laminating of the film paper is easily realized, and the produced paper film laminating piece finished product has the function of wrapping a product in a three-dimensional manner; the equipment is easy to operate, and accurate control can be realized; the embodiment of the invention can be suitable for products with higher requirements on film tension, is suitable for packaging and producing paper film laminating parts with various shapes, especially with certain height, and has wide application range; meanwhile, the embodiment can realize full-automatic production, and can greatly reduce the production cost.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A paper film laminating device comprises a supporting device and a film suction roller, wherein the film suction roller is arranged on the supporting device; the film suction roller is characterized by comprising a driving mechanism, a top cover component and a body, wherein the top cover component comprises a turnover cover, and the turnover cover is in transmission connection with the driving mechanism;

2. The paper film laminating equipment of claim 1, wherein the body comprises an outer roller and a suction roller positioned inside the outer roller, and a plurality of air holes are arranged on the outer roller;

3. The paper film laminating apparatus of claim 2, wherein the flip cover is plural, and the plural flip covers are annularly distributed along a circumferential direction of the outer roller.

4. The paper film laminating apparatus of claim 3, wherein when the top cover assembly is in the lifted state, an outer surface of a side of the flip cover facing away from the conveying direction of the film suction roller is flush with an outer surface of the outer roller in the conveying direction of the film suction roller.

5. A paper film laminating apparatus according to claim 3, wherein the top cover assembly further comprises at least one cover sheet located between the outer roller and the suction roller, the cover sheet being in driving connection with the driving mechanism for blocking the suction air flow of the opening when the top cover assembly is in the lifted state.

6. The paper film laminating apparatus of claim 5, wherein when the top cover assembly is in the lifted state, an outer surface of the cover sheet is attached to an inner surface of the outer roller to block the suction airflow of the opening.

7. The paper film laminating device of claim 5, wherein the flip cover has a plurality of air holes disposed thereon, the flip cover configured to absorb a film when the lid assembly is in the stowed state.

8. The paper film laminating apparatus of claim 6, wherein the driving mechanism comprises: the device comprises a motor, a first transmission assembly and a second transmission assembly;

9. The paper film laminating apparatus of claim 8, wherein the first transmission assembly comprises: the track blocks and the connecting rods correspond to the cover plates one by one;

10. The paper film laminating apparatus of claim 9, wherein the second transmission assembly comprises: the gear pair, the crank connecting rod and the connecting shaft are arranged on the crank connecting rod;

11. The paper film laminating apparatus of claim 10, wherein one of the crank links connected to the connection shaft is a telescopic link.