CN114560135B

CN114560135B - Wrapping device

Info

Publication number: CN114560135B
Application number: CN202210420948.7A
Authority: CN
Inventors: 廖鑫; 胡昌
Original assignee: Guangzhou Auto Mechanical Equipment Co ltd
Current assignee: Guangzhou Auto Mechanical Equipment Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-11-25
Anticipated expiration: 2042-04-20
Also published as: CN114560135A

Abstract

The invention relates to the technical field of packaging equipment, and particularly discloses a wrapping device, which comprises: the cup body transporting mechanism comprises a transporting channel for transporting the cup bodies; the paper bin mechanism comprises a conveying channel for conveying paper sheets; the paper piece transferring mechanism comprises a paper piece gripper, a first driving wheel and a second driving wheel which are eccentrically connected and have opposite rotating directions, a rotating shaft of the first driving wheel is fixedly arranged between the paper bin mechanism and the cup body conveying mechanism, the second driving wheel is provided with the paper piece gripper, and the paper piece gripper is used for gripping paper pieces above the cup body; and the folding mechanism is arranged on the conveying channel and is used for folding the paper sheets so that the cup body is wrapped by the paper sheets. Through being provided with cup transport mechanism and paper storehouse mechanism respectively to be provided with scraps of paper transfer mechanism between paper storehouse mechanism and cup transport mechanism, scraps of paper gripper's sunk position when relative first drive wheel rotates can save scraps of paper transfer mechanism's occupation space, makes the package device of wrapping up in of this application with low costs and space utilization height.

Description

Wrapping device

Technical Field

The application relates to the technical field of packaging equipment, in particular to a wrapping device.

Background

The cup packaging device in the prior art generally comprises a transportation assembly line and a paper sheet transportation mechanism, wherein the transportation assembly line is used for transporting cups needing to be packaged, the paper sheet transportation mechanism is used for transporting paper sheets, and the paper sheets can be folded to wrap the cups on the transportation assembly line.

However, the current paper sheet conveying mechanism is large in size and complex in structure, and causes the problems of high cost and space waste.

Disclosure of Invention

The embodiment of the invention aims to: the utility model provides a wrap up in package device, it can solve among the prior art cup packing plant with high costs and the extravagant problem in space.

In order to achieve the purpose, the following technical scheme is adopted in the application:

there is provided a wrapping device comprising:

the cup body transporting mechanism comprises a transporting channel for transporting the cup bodies;

the paper bin mechanism comprises a conveying channel for conveying paper sheets;

the paper piece transferring mechanism comprises a paper piece gripper, a first driving wheel and a second driving wheel which are eccentrically connected and have opposite rotating directions, a rotating shaft of the first driving wheel is fixedly arranged between the paper bin mechanism and the cup body conveying mechanism, the second driving wheel is provided with the paper piece gripper, and the paper piece gripper is used for gripping the paper piece above the cup body;

and the folding mechanism is arranged on the transportation channel and is used for folding the paper sheets so that the cup body is wrapped by the paper sheets.

As a preferable mode of the wrapping device, the paper sheet transfer mechanism further includes:

and the first driving wheel and the second driving wheel are meshed and connected through the transmission wheel.

As a preferable scheme of the wrapping device, the second driving wheel is provided with an extension arm in an extending manner, and the extension arm is provided with the paper sheet gripper.

As a preferable mode of the wrapping device, the paper deck mechanism further includes:

the paper leakage board is arranged at the tail end of the transmission channel and provided with a through hole for exposing the paper scraps, and a paper support block for supporting the paper scraps is arranged at the edge of the through hole.

the limiting plate moves synchronously with the conveying channel and is used for keeping the paper sheets to move along with the conveying channel;

and the limiting rod is fixedly arranged on the paper leakage plate and is used for limiting the paper sheets to be separated from the transmission channel.

As a preferable mode of the wrapping device, the transportation channel comprises a cup grabbing block moving along the advancing direction of the transportation channel, and the cup grabbing block is used for fixedly arranging the cup body;

cup transport mechanism still includes:

and the paper supporting plate is fixedly arranged at the top of the cup grabbing block.

As a preferable scheme of the wrapping device, a paper pushing rod is convexly arranged at the end part of the paper supporting plate, which is far away from the advancing direction.

As a preferable mode of the wrapping device, the folding mechanism includes:

the first pressing belt is arranged at the top of the conveying channel and moves in the same direction with the advancing direction;

the second pressing belts are arranged on two sides of the conveying channel, each second pressing belt is provided with a guide end deviating from the advancing direction, the guide ends are arranged at intervals with the end part of the first pressing belt, and the second pressing belts move in the same direction as the advancing direction;

and the guide rods are fixedly arranged on two sides of the conveying channel and point to the guide end from the first press belt so as to enable the paper sheets to be folded to the belt surface of the second press belt along the guide rods.

As a preferable aspect of the wrapping device, the folding mechanism further includes:

and the limiting block is arranged on the belt surface of the first pressing belt and/or the second pressing belt and is used for keeping the paper sheet and the cup body to move synchronously with the first pressing belt and/or the second pressing belt.

As a preferable mode of the wrapping device, the folding mechanism further includes:

the folding wheel can rotate, is vertical to the belt surface of the second press belt and is arranged in a protruding mode;

and the folding plate is fixedly arranged on a rotating shaft of the folding wheel and is vertically arranged on the belt surface of the second press belt, so that the paper sheet enters between the folding wheel and the folding plate and is folded by being vertical to the belt surface of the second press belt.

The beneficial effect of this application does:

through being provided with cup transport mechanism and paper storehouse mechanism respectively, can utilize transport passage and transport passage to come synchronous transportation cup and scraps of paper. And be provided with scraps of paper transfer mechanism between paper storehouse mechanism and cup transport mechanism, wherein, scraps of paper transfer mechanism includes eccentric connection and rotation direction opposite's first drive wheel and second drive wheel, because the pivot of first drive wheel is fixed to be set up between paper storehouse mechanism and cup transport mechanism, and still install scraps of paper tongs on the second drive wheel, make first drive wheel and second drive wheel when mutual antiport, scraps of paper tongs can rotate and protrusion and cave in the periphery of first drive wheel repeatedly along the periphery of first drive wheel. The tail end of the transmission channel of the paper bin mechanism is correspondingly provided with a protruding position of the paper sheet gripper when the paper sheet gripper rotates relative to the first driving wheel, paper sheets can be gripped by the paper sheet gripper, and the other protruding position of the paper sheet gripper relative to the first driving wheel can be correspondingly arranged with the transportation channel of the cup body transportation mechanism, so that the paper sheets can be put down above the transportation channel after the paper sheet gripper grips the paper sheets, and the process of transferring the paper sheets to the upper side of the cup body is completed. And the sunken position when scraps of paper tongs rotated relative first drive wheel can save scraps of paper transfer mechanism's occupation space, and the structural design of first drive wheel and second drive wheel is retrencied moreover, can reduce cost and improve space utilization.

In addition, a folding mechanism is further arranged on the conveying channel, and the paper sheets are folded through the folding mechanism, so that the cup body is wrapped, and the packaging of the cup body is completed.

Therefore, the wrapping device of the application is low in cost and high in space utilization rate.

Drawings

The present application will be described in further detail below with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural view of a wrapping device according to an embodiment of the present application.

Fig. 2 is an enlarged view of a portion a of fig. 1 of the present application.

FIG. 3 is a side view of a paper sheet transfer mechanism according to an embodiment of the present application.

Fig. 4 is a motion track diagram of a paper gripper in a paper transfer mechanism according to an embodiment of the present application.

Fig. 5 is an enlarged view of a portion B of fig. 1 of the present application.

Fig. 6 is a schematic structural view of a wrapping device according to another embodiment of the present application.

Fig. 7 is an enlarged view of the portion C of fig. 6 of the present application.

1. A cup body transport mechanism; 11. a transport channel; 111. grabbing a cup block; 12. a paper supporting plate; 13. a paper pushing rod; 14. a cup feeding star wheel;

2. a paper bin mechanism; 21. a transmission channel; 22. a paper leakage plate; 221. a through hole; 222. a paper supporting block; 23. a limiting plate; 24. a limiting rod;

3. a paper sheet transfer mechanism; 31. a first drive wheel; 32. a second drive wheel; 33. a paper sheet gripper; 34. a driving wheel; 35. an extension arm;

4. a folding mechanism; 41. a first press belt; 42. a second press belt; 421. a leading end; 43. a guide bar; 44. a limiting block; 45. a lifting mechanism.

Detailed Description

In order to make the technical problems solved, technical solutions adopted, and technical effects achieved by the present application clearer, the following describes technical solutions of embodiments of the present application in further detail, and it is obvious that the described embodiments are only a part of embodiments of the present application, but not all 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 application.

In the description of the present application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of 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 this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1, the present embodiment provides a wrapping device including:

the cup body transporting mechanism 1 comprises a transporting channel 11 for transporting cup bodies;

a paper hopper mechanism 2 including a conveyance passage 21 for conveying paper pieces;

the paper sheet transferring mechanism 3 comprises a first driving wheel 31 and a second driving wheel 32, the first driving wheel 31 and the second driving wheel 32 are eccentrically connected and rotate in opposite directions, a rotating shaft of the first driving wheel 31 is fixedly arranged between the paper bin mechanism 2 and the cup body transporting mechanism 1, a paper sheet gripper 33 is arranged on the second driving wheel 32, and the paper sheet gripper 33 is used for gripping paper sheets to the upper part of the cup body;

and the folding mechanism 4 is arranged on the conveying channel 11 and used for folding the paper sheets so that the cup body is wrapped by the paper sheets.

This application can utilize transport passage 11 and transport passage 21 to transport cup and scraps of paper in step through being provided with cup transport mechanism 1 and paper storehouse mechanism 2 respectively. And a paper sheet transfer mechanism 3 is arranged between the paper bin mechanism 2 and the cup body transportation mechanism 1, wherein the paper sheet transfer mechanism 3 comprises a first driving wheel 31 and a second driving wheel 32 which are eccentrically connected and rotate in opposite directions, because the rotating shaft of the first driving wheel 31 is fixedly arranged between the paper bin mechanism 2 and the cup body transportation mechanism 1, and a paper sheet gripper 33 is further arranged on the second driving wheel 32, when the first driving wheel 31 and the second driving wheel 32 rotate in opposite directions, the paper sheet gripper 33 can rotate along the periphery of the first driving wheel 31 and repeatedly protrude and recess on the periphery of the first driving wheel 31 (the moving track of the paper sheet gripper 33 refers to fig. 4). The tail end of the transmission channel 21 of the paper bin mechanism 2 is correspondingly provided with a protruding position of the paper sheet gripper 33 when rotating relative to the first driving wheel 31, paper sheets can be gripped by the paper sheet gripper 33, and the other protruding position of the paper sheet gripper 33 when rotating relative to the first driving wheel 31 can be correspondingly arranged with the transmission channel 11 of the cup body transmission mechanism 1, so that the paper sheets can be put down above the transmission channel 11 after the paper sheets are gripped by the paper sheet gripper 33, and the process of transferring the paper sheets to the upper side of the cup body is completed. The recessed position of the paper gripper 33 when rotating relative to the first drive wheel 31 saves the space occupied by the paper transfer mechanism 3, and the first drive wheel 31 and the second drive wheel 32 are simplified in structural design, thereby reducing the cost and improving the space utilization rate.

In addition, the transportation channel 11 is also provided with a folding mechanism 4, and the paper sheets are folded through the folding mechanism 4, so that the cup body is wrapped, and the packaging of the cup body is completed.

Further, referring to fig. 2 and 3, the paper sheet transferring mechanism 3 further includes a transmission wheel 34, and the first driving wheel 31 and the second driving wheel 32 of the present embodiment are in meshing connection through the transmission wheel 34, so that the first driving wheel 31 drives the second driving wheel 32 to rotate, and the rotation directions of the first driving wheel 31 and the second driving wheel 32 are opposite. By varying the ratio of the first drive wheel 31 to the drive wheel 34 and the ratio of the second drive wheel 32 to the drive wheel 34, the ratio of the speed of rotation of the first drive wheel 31 to the second drive wheel 32 can be varied to increase or decrease the number of positions of the sheet gripper 33 which are salient when it rotates relative to the first drive wheel 31.

In the embodiment, only one motor is provided to provide power to the first driving wheel 31, and the transmission wheel 34 is used to transmit the power of the first driving wheel 31 to the second driving wheel 32, so that the energy consumption is reduced and the structural design is simplified.

Preferably, referring to fig. 4, the number of positions projected when the paper sheet gripper 33 is rotated relative to the first drive wheel 31 is three. Preferably, the transmission wheel 34 is made of resin, and the transmission wheel 34 made of resin can reduce noise during meshing transmission, and does not need to add lubricating oil, so that the use of lubricating oil is reduced, and the cost and the grease pollution are further reduced.

Further, referring to fig. 3, the second drive wheel 32 is extended with an extension arm 35, and the extension arm 35 is provided with a paper gripper 33. The extension arm 35 of this embodiment is capable of increasing the radius of rotation of the paper gripper 33 and thereby increasing the travel of the paper gripper 33 relative to the transport path 11 and the transport path 21.

Preferably, referring to fig. 3, the extension arm 35 and the paper gripper 33 are two in number, and the gripping and the dropping of the paper gripper 33 can be realized at both protruding positions when the first driving wheel 31 rotates relative to the first driving wheel 31, thereby improving the transfer efficiency of the paper. Another preferred paper gripper 33 is a vacuum chuck by which paper can be sucked or a gripping structure by which paper can be gripped.

In particular, with reference to fig. 2, the magazine mechanism 2 further comprises:

the paper leakage plate 22 is arranged at the tail end of the conveying channel 21, the paper leakage plate 22 is provided with a through hole 221 for exposing paper sheets, and when the stacked paper sheets reach the paper leakage plate 22 along the conveying channel 21, the stacked paper sheets can be stopped on the paper leakage plate 22 due to the fact that the edge of the through hole 221 is provided with the paper supporting block 222 for supporting the paper sheets. At this time, the paper gripping hand 33 can grip the paper through the through hole 221, and the paper can be drawn from the through hole 221 of the paper leakage plate 22 and move along with the paper gripping hand 33, so that the paper is transferred piece by piece.

Preferably, referring to fig. 1, the paper deck mechanism 2 further includes a limit plate 23, and the limit plate 23 of the present embodiment moves in synchronization with the conveyance path 21 of the paper deck mechanism 2. When the paper piece moves in the conveyance path 21, by providing the stopper plate 23, the paper piece can be kept to follow the conveyance path 21.

In addition, referring to fig. 2, the paper bin mechanism 2 further includes a limiting rod 24, the limiting rod 24 is fixedly disposed on the paper leakage board 22, and after the paper sheet reaches the paper leakage board 22, the limiting rod 24 is used for limiting the paper sheet to separate from the transmission channel 21 and keeping the paper sheet stably parked on the paper leakage board 22.

In another embodiment, referring to fig. 5, the transportation path 11 includes a cup catching block 111 moving in the advancing direction of the transportation path 11, and the cup catching block 111 is used to fixedly set the cups and carry the cups to move in the advancing direction of the transportation path 11, so that the cups can be continuously and synchronously moved in the advancing direction.

And cup transport mechanism 1 still includes holding in the palm cardboard 12, and holding in the palm cardboard 12 fixed set up in grabbing the top of cup piece 111, can support the scraps of paper that come from scraps of paper tongs 33 for scraps of paper can follow the cup and remove.

Further, referring to fig. 5, a paper pushing rod 13 is convexly arranged at the end of the paper supporting plate 12 departing from the advancing direction of the transportation channel 11, and the paper pushing rod 13 can abut against the edge of the paper to keep the paper to always follow the cup body to move synchronously.

Still further, with reference to fig. 6 and 7, folding mechanism 4 comprises a first push belt 41, a second push belt 42 and a guide bar 43, wherein:

the first pressing belt 41 is disposed at the top of the transportation path 11, and the first pressing belt 41 moves in the same direction as the advancing direction, and can press the cup body and the sheet in the transportation path 11.

The second press belts 42 are arranged on two sides of the conveying channel 11, the second press belts 42 are provided with guide ends 421 deviating from the advancing direction, the guide ends 421 are arranged at intervals with the end parts of the first press belts 41, and the second press belts 42 move in the same direction as the advancing direction and can clamp two sides of the cup body.

And the guide rods 43 are fixedly arranged at both sides of the transportation channel 11, and the guide rods 43 are directed from the first pressing belt 41 to the guide end 421, so that the paper sheets can be folded to the belt surface of the second pressing belt 42 along the guide rods 43 when being pressed by the first pressing belt 41 and moved in the advancing direction, and the folded paper sheets can be pressed on the cup bodies by the second pressing belt 42.

Thus, this embodiment can drive the cup and the paper sheet to move in the forward direction while folding the paper sheet.

Further, referring to fig. 7, the folding mechanism 4 further includes a stopper 44, the stopper 44 of this embodiment is disposed on the belt surface of the first pressing belt 41, and can be clamped into the gap between the cups and the edge of the paper sheet when the stopper 44 moves along with the first pressing belt 41, so as to keep the paper sheet and the cups moving synchronously with the first pressing belt 41. Or, the stopper 44 is disposed on the belt surface of the second press belt 42, and the stopper 44 can also be clamped into the gap between the cups and the edge of the paper sheet, and can also keep the paper sheet and the cups moving synchronously with the second press belt 42. Alternatively, the first pressing belt 41 and the second pressing belt 42 may be provided with a stopper 44 on the belt surface to further keep the paper and the cup moving synchronously with the second pressing belt 42.

Still further, the folding mechanism 4 further comprises a folding wheel and a folding plate (not shown in the figures), wherein:

the folding wheel is rotatable and perpendicular, the protrusion sets up in the area of second press belt 42, and when the scraps of paper was pressed by second press belt 42 and was driven and move along the direction of advance, the edge contact convex folding wheel of scraps of paper and by oppression buckling, the wheel of folding a page also can be followed the advance of scraps of paper and rotated simultaneously, reduces the friction between scraps of paper and the folding wheel.

Because the folding plate is fixedly arranged on the rotating shaft of the folding wheel and is vertically arranged on the belt surface of the second press belt 42, when the paper sheet is driven by the folding wheel to be bent, the edge of the folding plate further presses the paper sheet to the folding wheel, so that the paper sheet can be folded and formed perpendicular to the belt surface of the second press belt 42 after entering between the folding wheel and the folding plate.

In addition, folding mechanism 4 still includes spouts gluey module (not shown in the figure), spouts gluey module setting in one side of folding board, and scraps of paper spraying viscose after scraps of paper folding front or folding for scraps of paper can bond each other after folding, thereby wraps up the cup with scraps of paper.

Preferably, the sheets, when folded, may be arranged with the long sheet on the side adjacent to one of the second press belts 42 and the short sheet on the side adjacent to the other second press belt 42. After the short pages are folded and formed, the viscose can be sprayed on the unfolded long pages, then the long pages sprayed with the viscose are folded towards the short pages, the paper sheets can be folded and bonded to form an annular paper tube, and the cup body is wrapped.

Alternatively, referring to fig. 2, the cup transport mechanism 1 of the present application includes a cup star 14, and by controlling the rotation speed of the cup star 14, a specified number of cups can be arranged in the transport path 11.

In addition, referring to fig. 6, the folding mechanism 4 of the present application further includes a lifting mechanism 45, the lifting mechanism 45 connects the first pressing belt 41 and the cup transportation mechanism 1, and the height position of the first pressing belt 41 relative to the cup can be adjusted by the operation of the lifting mechanism 45, so as to satisfy the pressing of the cups with different heights.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship merely for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principles of the present application have been described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the present application and is not to be construed in any way as limiting the scope of the application. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present application without inventive effort, which shall fall within the scope of the present application.

Claims

1. A wrapping device, comprising:

the cup body transporting mechanism (1) comprises a transporting channel (11) for transporting cup bodies;

a magazine mechanism (2) including a transport path (21) for transporting sheets of paper;

the paper scrap transfer mechanism (3) comprises paper scrap grippers (33), a first driving wheel (31) and a second driving wheel (32), the first driving wheel (31) and the second driving wheel are eccentrically connected, the rotating directions of the first driving wheel (31) are opposite, a rotating shaft of the first driving wheel is fixedly arranged between the paper bin mechanism (2) and the cup body conveying mechanism (1), the paper scrap grippers (33) are mounted on the second driving wheel (32), the paper scrap grippers (33) are used for gripping paper scraps to the upper portion of the cup body, two ends of the second driving wheel (32) are respectively provided with extension arms (35) in an extending mode, the extension arms (35) are provided with the paper scrap grippers (33), and the number of the extension arms (35) and the number of the paper scrap grippers (33) are two;

and the folding mechanism (4) is arranged on the conveying channel (11) and is used for folding the paper sheets so that the cup body is wrapped by the paper sheets.

2. Wrapping device according to claim 1, characterized in that said sheet transfer mechanism (3) further comprises:

the first driving wheel (31) and the second driving wheel (32) are in meshed connection through the transmission wheel (34).

3. Wrapping device according to claim 1, characterized in that said magazine means (2) further comprise:

the paper leakage plate (22) is arranged at the tail end of the conveying channel (21), the paper leakage plate (22) is provided with a through hole (221) used for exposing paper sheets, and a paper supporting block (222) used for supporting the paper sheets is arranged at the edge of the through hole (221).

4. Wrapping device according to claim 3, characterized in that said magazine means (2) further comprise:

a limiting plate (23) moving synchronously with the conveying channel (21), wherein the limiting plate (23) is used for keeping the paper sheets moving along with the conveying channel (21);

the limiting rod (24) is fixedly arranged on the paper leakage plate (22), and the limiting rod (24) is used for limiting the paper sheets to be separated from the transmission channel (21).

5. Wrapping device according to claim 1, characterized in that said transport path (11) comprises a cup-grasping block (111) moving along the advancement direction of said transport path (11), said cup-grasping block (111) being intended to fixedly arrange said cups;

the cup body transportation mechanism (1) further comprises:

and the paper supporting plate (12) is fixedly arranged at the top of the cup grabbing block (111).

6. Wrapping device according to claim 5, characterized in that the end of the carrier plate (12) facing away from the advancing direction is provided convexly with a push lever (13).

7. Wrapping device according to claim 6, characterized in that said folding mechanism (4) comprises:

a first press belt (41) arranged on top of said transport path (11), said first press belt (41) moving in the same direction as said advancing direction;

a second press belt (42) arranged at both sides of the transport path (11), the second press belt (42) having a guide end (421) facing away from the advancing direction, the guide end (421) being arranged at an interval from an end of the first press belt (41), the second press belt (42) moving in the same direction as the advancing direction;

guide rods (43) are fixedly arranged on two sides of the conveying channel (11), and the guide rods (43) point to the guide end (421) from the first pressing belt (41) so that the paper sheets can be folded to the belt surface of the second pressing belt (42) along the guide rods (43).

8. Wrapping device according to claim 7, characterized in that said folding mechanism (4) further comprises:

and the limiting block (44) is arranged on the belt surface of the first pressing belt (41) and/or the second pressing belt (42), and the limiting block (44) is used for keeping the paper sheets and the cup bodies to move synchronously with the first pressing belt (41) and/or the second pressing belt (42).

9. Wrapping device according to claim 8, characterized in that said folding mechanism (4) further comprises:

the folding wheel is rotatably, vertically and convexly arranged on the belt surface of the second press belt (42);

and the folding plate is fixedly arranged on a rotating shaft of the folding wheel and is vertically arranged on the belt surface of the second pressing belt (42) so that the paper sheet enters between the folding wheel and the folding plate and is folded by being vertical to the belt surface of the second pressing belt (42).