Soft tissue packaging machine with synchronous upward-inserting film package keeping mechanism

Abstract

The invention relates to the field of tissue packaging equipment, and discloses a soft tissue packaging machine with a synchronous upward-insertion film package keeping mechanism, which comprises a transfer assembly, a downward-insertion plate sealing assembly, a conveying power source in transmission connection with the transfer assembly, and a material accommodating space between an upper clamping part and a lower clamping part. The lower inserting plate is used for folding the side lower portion of the packaging film at the feeding station, the transferring assembly is provided with at least one end maintaining path between the feeding station and the sealing station, and the attaching plane of the lower inserting plate makes contact with the outer surface of the side lower portion of the packaging film and enables the lower inserting plate to be attached to the side portion of stacked materials all the time on the maintaining path. And the lower inserting plate is withdrawn out of the material accommodating space before reaching the sealing station or when reaching the sealing station. The lower inserting plate and the side lower portion of the packaging film are kept to be attached to the side portion of stacked materials during conveying, the side upper portion of the packaging film can be turned from a drooping state to a natural covering state under the gravity effect in the conveying process, and the problems of loosening and edge warping of the side lower portion of the film material are thoroughly solved.

Description

Technical Field

[0001] This invention relates to the field of tissue paper packaging equipment, and more particularly to a soft tissue paper packaging machine having a synchronous upper insertion and retaining film packaging mechanism. Background Technology

[0002] In existing soft tissue packaging machines, the tissues are wrapped in a plastic film. The process involves first pushing the cut tissues towards the pressure plate at the feeding station. During this process, the plastic film wraps one end of the tissue. Then, the other end is folded by the action of the lower or upper and lower insert plates. Finally, the folded plastic film wrapping the tissue is heat-sealed at the sealing station, so that the packaging film is a cylindrical shape with openings on both sides, wrapping the soft tissue.

[0003] However, the folding plate used for folding the packaging film on the side only folds the packaging film inward at the feeding station. After the folding plate is removed, the side of the film loses its positioning and is prone to loosening and curling when the turntable rotates at high speed. To prevent the film from loosening, some models add a film-pressing brush or sponge roller above the turntable, but the soft pressing parts have limited holding force on the film and are prone to interfering with the sealing head. Moreover, an additional "straightening" mechanism is required before sealing to re-press the curled upper side, which is complex and takes up a lot of space. The above-mentioned multi-station sequential operation requires multiple independent power sources, which are difficult to synchronize and coordinate, resulting in a high failure rate. Therefore, a simple structure is needed to continuously keep the film adhered to the side of the stacked material and ensure that the lower and upper sides are accurately positioned during sealing. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a soft tissue packaging machine with a synchronous upper insertion and holding film packaging mechanism.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions: A soft tissue packaging machine with a synchronous upper insertion and film-holding mechanism includes a transfer component, a lower insertion plate, and a sealing component. The transfer component is driven by a power source. A feeding station and a sealing station are set along the conveying path of the transfer component. The transfer component includes an upper clamping component and a lower clamping component, with a material receiving space between them. One side of the material receiving space has an inlet for stacked materials wrapped in packaging film to enter. The lower clamping component has an insertion plate clearance groove. The lower insertion plate is used to fold the lower side of the packaging film at the feeding station, and is driven by a power source to move it. The sealing component is used to fold the lower side of the packaging film at the sealing station. The overlapping portion between the lower and upper sides of the packaging film is sealed; when the transfer assembly is at or away from the feeding station, the lower insert plate extends out of the lower clamping component due to relative displacement between the lower insert plate and the lower clamping component; the transfer assembly has at least one end of a holding path between the feeding station and the sealing station; the lower insert plate is kept in the state of extending into the material receiving space on the holding path; the lower insert plate has an attachment plane perpendicular to the upper support surface of the lower clamping component; the attachment plane contacts the lower outer surface of the packaging film and keeps it always attached to the side of the stacked material on the holding path; the lower insert plate is removed from the material receiving space before reaching the sealing station or when reaching the sealing station. By using a bottom insert plate to keep the lower side of the packaging film in contact with the side of the stacked materials during conveying, the upper side of the packaging film does not require an additional power source to press it down. During conveying, it will naturally cover the upper side under the influence of gravity. After entering the sealing mechanism, the component that applies pressure to the upper side of the packaging film will gradually cover the entire plane of the upper side of the packaging film, starting from the folded part of the top surface of the packaging film. This will give the upper side of the packaging film a push, making it flat against the side surface of the material, with an overlap with the lower side of the packaging film. This positioning method eliminates the need for a conveyor cover plate during the conveying process, completely solving the problem of the lower side of the film loosening and curling.

[0006] Preferably, the transfer component is mounted on the main turntable, which has four stations circumferentially arranged: a feeding station, a sealing station, a discharging station, and a transition station. The distance between each station is equal. The main turntable is connected to a conveying power source that drives it to rotate periodically at certain time intervals. The conveying power source drives the main turntable to rotate, causing the transfer component to move cyclically at each station. The discharging station is equipped with a pushing mechanism to push out the material that has been sealed on the side.

[0007] Preferably, the sealing assembly includes a sealing head and a sealing power source that drives its lifting and lowering movement. A pressure rope is provided at the sealing station, with the pressure rope spaced apart to allow the sealing head to contact the packaging film. The upper and lower clamping components of the transfer assembly have clearance grooves on the side near the sealing head for the pressure rope to extend into. The pressure rope 52 is pre-positioned before the sealing head is pressed down, ensuring that the overlapping area is free of air bubbles and wrinkles.

[0008] Preferably, the movement of the transfer assembly causes the pressure rope to extend into the clearance groove. Before the lower insert plate is completely removed from the material receiving space, the upper side of the packaging film contacts the pressure rope, and the contact area increases with the movement of the transfer assembly. When the transfer assembly is in the sealing position, the upper and lower sides of the packaging film overlap and are pressed down by the pressure rope. The pressure rope applies pressure to the packaging film, causing the plane of action of the pressure rope to be slightly more inward than the original folded position of the packaging film. Since the side of the tissue box is soft, this inward pressure allows the packaging film to fit tightly against the soft tissue box side when sealed.

[0009] Preferably, a relative displacement occurs between the lower insert plate and the lower clamping component. When the conveying assembly maintains the end point of the path, the lower insert plate is in a horizontal or near-horizontal state, exiting the material receiving space. As the lower insert plate exits the material receiving space, the upper side of the packaging film covers the side of the material on the sealing head side under the influence of gravity. The upper side of the packaging film hangs over the lower insert plate until the lower insert plate is removed, eliminating the need for additional transmission mechanisms or power sources to drive the movement of the upper insert plate in other components.

[0010] Preferably, the system also includes an inlet plate and a pushing mechanism. The upper and lower inlet plates are connected to the inlet side of the transfer component at the feeding station. At least the upper inlet plate is provided with spaced protrusions that match the positions of the clearance grooves. When the transfer component leaves the feeding station, the inlet plate contacts the upper side of the packaging film and covers it outside the lower insert plate. The inlet plate with protrusions guides the upper side of the packaging film the instant the transfer component leaves the feeding station, causing it to naturally cover the lower insert plate and preventing rebound.

[0011] Preferably, the transfer component is mounted on the main turntable, which is connected to a power source that drives it to rotate. The power source drives the main turntable to rotate, causing the transfer component to move from the feeding station to the sealing station.

[0012] Preferably, the insert plate clearance groove and the avoidance groove of the lower clamping component are staggered. The lower insert plate is comb-shaped with an L-shaped cross-section in the vertical plane. The comb-tooth units are spaced apart and can pass through the insert plate clearance groove. The lower insert plate is mounted on the mounting beam, which is connected to the insert plate power source. The comb-shaped lower insert plate is compatible with both the avoidance groove and the insert plate clearance groove, ensuring a large contact surface while maximizing space utilization.

[0013] Preferably, the insert plate power source is a direct drive power source, which is installed on the main turntable and drives the lower insert plate to move relative to the lower clamping component.

[0014] Preferably, the mounting beam is connected to a cam swing arm, and the cam swing arm or the mounting beam is connected to the main turntable via a transmission. When the main turntable rotates, it drives the mounting beam to make the lower insert plate move with the transfer assembly. A secondary turntable parallel to the main turntable is also provided behind it. The secondary turntable is provided with a cam action surface. The two ends of the cam swing arm are respectively provided with rollers that cooperate with the cam action surface and slide grooves that cooperate with the mounting beam. The cam swing arm is connected to the main turntable by a spring. The rotation of the main turntable drives the cam swing arm to move in a circular motion.

[0015] Preferably, the secondary turntable is connected to a power source for a plate that drives its reciprocating rotation. The power source drives the secondary turntable to move before the transfer component moves to the feeding station. When the transfer component moves to the feeding station, the lower plate remains in a state where it does not extend into the material receiving space. The main turntable continues to rotate, causing the cam action surface to act on the roller, thereby gradually raising one end of the cam swing arm along the cam action surface. The lower plate inserts into the material receiving space while the transfer component moves and remains inserted into the material receiving space along the holding path. Before entering the sealing station, the main turntable continues to rotate, causing the cam action surface to act on the roller, thereby gradually lowering one end of the cam swing arm along the cam action surface, and the lower plate gradually withdraws from the material receiving space. This method allows the main turntable to rotate after the lower insertion plate is in place, causing the contact position between the cam action surface and the roller to change. This allows the lower insertion plate to be inserted only while the conveying assembly is moving. This saves time, as there is no need to wait for the lower insertion plate to be inserted after feeding at the feeding station before conveying. The waiting time of the conveying power source at each station is shortened, greatly saving production time and increasing production efficiency.

[0016] Preferably, the secondary turntable is fixed, and the power source for the insert plate and the power source for the conveying are the same. The power source for the conveying drives the main turntable to rotate, causing the cam action surface on the secondary turntable to act on the roller. As a result, one end of the cam swing arm gradually rises along the cam action surface. The lower insert plate is inserted into the material receiving space while the conveying component is moving, and remains inserted into the material receiving space on the holding path. Before entering the sealing station, the power source for the conveying drives the main turntable to continue rotating, causing the cam action surface to act on the roller. As a result, one end of the cam swing arm gradually descends, and the lower insert plate gradually withdraws from the material receiving space.

[0017] This invention, by adopting the above technical solutions, has significant technical effects: The lower insert plate adheres to the lower part of the film side throughout the entire path, while the upper part of the packaging film side can be automatically covered by gravity. During the conveying process, the packaging film is kept tightly attached, resulting in better reliability, better film quality, and higher yield. The clearance groove design, combined with the pressure rope, allows for gradual contact between the pressure rope and the packaging film, making the upper side of the packaging film smoother. The overlapping areas of the upper and lower sides of the packaging film are compacted by the pressure rope, resulting in wrinkle-free sealing when the end cap is closed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the lower insert plate and the transfer assembly. Figure 3 This is a schematic diagram of the structure of the transfer component of the present invention when it starts to convey materials from the feeding station; Figure 4 yes Figure 3 A schematic diagram of the cam arm and sub-rotor in the specified state; Figure 5 This is a schematic diagram of the structure of the transfer component of the present invention as it is about to reach the sealing station from the feeding station; Figure 6 yes Figure 5 A schematic diagram of the cam arm and sub-rotor in the specified state; Figure 7 This is a schematic diagram of the structure of the transfer component of the present invention when it reaches the sealing station; Figure 8 yes Figure 7 A schematic diagram of the cam arm and sub-rotor in the specified state; Figure 9 This is a structural diagram of the entire machine.

[0019] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Transfer assembly; 11. Upper clamping component; 12. Lower clamping component; 121. Insert plate clearance groove; 13. Material receiving space; 14. Clearance groove; 2. Conveying power source; 3. Lower insert plate; 31. Mounting beam; 32. Cam swing arm; 321. Slide groove; 33. Roller; 4. Insert plate power source; 5. Sealing assembly; 51. End cap; 52. Pressure membrane rope; 53. Sealing power source; 61. Inlet plate; 62. Protrusion; 7. Main turntable; 71. Spring; 8. Sub-turntable; 81. Cam action surface; 91. Feeding station; 92. Sealing station; 93. Discharge station; 94. Transition station. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Example

[0021] Soft tissue packaging machines with a synchronous upper insertion and retaining film packaging mechanism, such as Figure 1-2As shown, the assembly includes a transfer component 1, a lower insert plate 3, and a sealing component 5. The transfer component 1 is driven by a conveying power source 2. A feeding station 91 and a sealing station 92 are provided on the conveying path of the transfer component 1. The transfer component 1 includes an upper clamping component 11 and a lower clamping component 12, with a material receiving space 13 between them. One side of the material receiving space 13 has an inlet for stacked materials wrapped in packaging film to enter. The lower clamping component 12 is provided with an insert plate clearance groove 121. The lower insert plate 3 is used to fold the lower side of the packaging film at the feeding station 91, and is driven by an insert plate power source 4. The sealing component 5 is used to fold the lower side of the packaging film at the sealing station 92. The overlapping portion between the lower part and the upper side is sealed; when the transfer assembly 1 is on or away from the feeding station 91, the lower insert plate 3 extends out of the lower clamping component 12 due to relative displacement between the lower insert plate 3 and the lower clamping component 12. The transfer assembly 1 has at least one end holding path between the feeding station 91 and the sealing station 92. The lower insert plate 3 is held in the state of extending into the material receiving space 13 on the holding path. The lower insert plate 3 has an attachment plane perpendicular to the upper support surface of the lower clamping component 12. The attachment plane contacts the lower side outer surface of the packaging film and keeps it always attached to the side of the stacked material on the holding path. The lower insert plate 3 is withdrawn from the material receiving space 13 before reaching the sealing station 92 or when reaching the sealing station 92.

[0022] like Figure 9 As shown, the transfer component 1 is mounted on the main turntable 7. The main turntable 7 has four stations arranged around its circumference: a feeding station 91, a sealing station 92, a discharging station 93, and a transition station 94. The distance between each station is equal. The main turntable 7 is connected to a conveying power source 2 that drives it to rotate periodically at certain time intervals. The conveying power source 2 drives the main turntable 7 to rotate, causing the transfer component 1 to move cyclically at each station. The discharging station 93 is equipped with a pushing mechanism to push out the material that has been sealed on the side.

[0023] The sealing assembly 5 includes a sealing head 51 and a sealing power source 53 that drives its lifting and lowering movement. A film pressing rope 52 is provided on the sealing station 92. The film pressing rope 52 is spaced apart to allow the sealing head 51 to contact the packaging film. The upper clamping component 11 and the lower clamping component 12 of the transfer assembly 1 are both provided with a clearance groove 14 on the side near the sealing head 51 for the film pressing rope 52 to extend into.

[0024] like Figure 5 and Figure 7 As shown, the movement of the transfer assembly 1 causes the pressure rope 52 to extend into the clearance groove 14. Before the lower insert plate 3 is completely removed from the material receiving space 13, the upper side of the packaging film contacts the pressure rope 52 and the contact area increases with the movement of the transfer assembly 1. When the transfer assembly 1 is in the sealing position 92, the upper side and lower side of the packaging film overlap and are pressed by the pressure rope 52.

[0025] A relative displacement occurs between the lower insert plate 3 and the lower clamping component 12. When the conveying component 1 maintains the end point of the path, the lower insert plate 3 is in a horizontal or near-horizontal state when it exits the material receiving space 13. When the lower insert plate 3 exits the material receiving space 13, the upper side of the packaging film covers the side of the material on the sealing head 51 under the action of gravity.

[0026] It also includes an inlet plate 61 and a pushing mechanism. The upper and lower inlet plates 61 are connected to the inlet side of the transfer component 1 of the feeding station 91. At least the upper inlet plate 61 is provided with spaced protrusions 62. The protrusions 62 are matched with the clearance groove 14. When the transfer component 1 leaves the feeding station 91, the inlet plate 61 contacts the upper side of the packaging film and covers the lower insert plate 3.

[0027] The transfer component 1 is mounted on the main turntable 7, which is connected to a power source 2 that drives it to rotate. The power source 2 drives the main turntable 7 to rotate, causing the transfer component 1 to move from the feeding station 91 to the sealing station 92.

[0028] The insert plate clearance groove 121 and the clearance groove 14 of the lower clamping component 12 are staggered. The lower insert plate 3 is comb-shaped and the cross section of the vertical plane is L-shaped. The comb units are spaced apart and can pass through the insert plate clearance groove 121. The lower insert plate 3 is mounted on the mounting beam 31, and the mounting beam 31 is connected to the insert plate power source 4.

[0029] As one embodiment of the power source for the insert plate, the mounting beam 31 is connected to a cam swing arm 32. The cam swing arm 32 or the mounting beam 31 is connected to the main turntable 7 for transmission. When the main turntable 7 rotates, it drives the mounting beam 31 to make the lower insert plate 3 move with the transfer component 1. A secondary turntable 8 is also provided behind the main turntable 7 and parallel to it. A cam action surface 81 is provided on the secondary turntable 8. The two ends of the cam swing arm 32 are respectively provided with rollers 33 that cooperate with the cam action surface 81 and slide grooves 321 that cooperate with the mounting beam 31. The cam swing arm 32 is connected to the main turntable 7 by a spring 71. The rotation of the main turntable 7 drives the cam swing arm 32 to move in a circular motion.

[0030] In one embodiment, the auxiliary turntable 8 is connected to a plate power source 4 that drives it to reciprocate. The plate power source 4 drives the auxiliary turntable 8 to move before the transfer assembly 1 moves to the feeding station 91. When the transfer assembly 1 moves to the feeding station 91, the lower plate 3 remains in a state where it does not extend into the material receiving space 13. The main turntable 7 continues to rotate, causing the cam action surface 81 to act on the roller 33. As a result, one end of the slide groove 321 of the cam swing arm 32 gradually rises along the cam action surface 81. The lower plate 3 inserts into the material receiving space 13 while the transfer assembly 1 moves and remains inserted into the material receiving space 13 on the holding path. Before entering the sealing station 92, the main turntable 7 continues to rotate, causing the cam action surface 81 to act on the roller 33. As a result, one end of the slide groove 321 of the cam swing arm 32 gradually descends, and the lower plate 3 gradually withdraws from the material receiving space 13.

[0031] Scheme 2 of this implementation is as follows: the auxiliary turntable 8 is fixed, the insertion plate power source 4 and the conveying power source 2 are the same power source, the lower insertion plate 3 achieves relative movement with the transfer component 1 by the transmission method of the interaction between the cam action surface 81 and the roller 33, the conveying power source 2 drives the main turntable 7 to rotate so that the cam action surface 81 on the auxiliary turntable 8 acts on the roller 33, so that one end of the slide groove 321 of the cam swing arm 32 gradually rises along the cam action surface 81, the lower insertion plate 3 inserts into the material receiving space 13 at the same time as the transfer component 1 moves and maintains the insertion into the material receiving space 13 on the holding path; before entering the sealing station 92, the conveying power source 2 drives the main turntable 7 to continue to rotate so that the cam action surface 81 acts on the roller 33, so that one end of the slide groove 321 of the cam swing arm 32 gradually descends, and the lower insertion plate 3 gradually withdraws from the material receiving space 13.

[0032] As another implementation of the insert plate power source, the insert plate power source 4 is a direct drive power source. The insert plate power source 4 is mounted on the main turntable 7, and the insert plate power source 4 drives the lower insert plate 3 to move relative to the lower clamping component 12. The direct drive power source can be a reciprocating cylinder or a motor driving a swing arm, etc., the purpose of which is to cause relative movement between the insert plate and the main turntable 7.

[0033] Workflow 1. For example Figure 1-2 As shown, proceed with feeding: After the inner side of the stacked material is wrapped with film at the inlet plate 61, it enters the receiving space 13 from the inlet. The packaging film is originally vertical. After the stacked material is pushed, the packaging film is wrapped in an inverted C-shape to cover the material. The auxiliary turntable 8 can remain stationary until the material is fully fed before inserting into the material receiving space, or it can reach a preset position before the main turntable rotates and then insert the lower insert plate 3 into the material receiving space by relying on the cam action surface. However, the lower insert plate 3 does not extend into the space during the feeding stage.

[0034] 2. For example Figure 3-4 As shown, keep the path running: The main turntable 7 rotates, causing the transfer assembly to leave the feeding station 91; when it starts to rotate, the roller 33 reaches the point where the cam action surface 81 is far from the center. The roller 33 moves downward relative to the auxiliary turntable, lifting the slide groove 321 of the cam swing arm 32 upward, thereby lifting the mounting beam 31 to connect with the lower insert plate 3. The comb teeth of the lower insert plate 3 penetrate into the lower part of the film attachment groove 121 of the insert plate.

[0035] 3. For example Figure 5-6 As shown, sealing preparation: During the transfer to the sealing station 92, the membrane pressing rope 52 gradually extends into the clearance groove 14, and the upper part of the membrane side covers the outer surface of the lower insert plate. The lower insert plate remains in the inserted state throughout the entire process, constraining the lower part of the membrane side.

[0036] 4. For example Figure 7-8 As shown, sealing and unsealing: Before entering the sealing station 92, the cam action surface 81 pushes the roller inward and pryes the slide groove 321 of the cam swing arm 32 outward, and the lower insert plate is removed from the receiving space. The upper part of the membrane naturally covers the side of the material, the pressure rope presses the overlapping area, and the end cap 51 is heat-sealed.

[0037] 5. Discharge: The finished product is transferred to the discharge station 93 and pushed out by the pushing mechanism.

[0038] In the description of this invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The power source can be a cylinder, a motor, or a cylinder and motor using gear and rack engagement, lead screw and nut engagement, slider guide rail engagement, or connecting rod engagement to achieve motion. Rotation can be achieved by a motor driving a synchronous pulley to rotate, thereby driving a belt sleeved on the synchronous pulley to rotate. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In summary, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims

1. A soft tissue packaging machine with a synchronous upper insertion and retaining film packaging mechanism, including The transfer assembly (1) is connected to a power source (2) for conveying. The conveying path of the transfer assembly (1) is provided with a feeding station (91) and a sealing station (92). The transfer assembly (1) includes an upper clamping component (11) and a lower clamping component (12). There is a material receiving space (13) between the upper clamping component (11) and the lower clamping component (12). One side of the material receiving space (13) is provided with an inlet for stacked materials wrapped with packaging film to enter. The lower clamping component (12) is provided with a plate clearance groove (121). The lower insert plate (3) is used to fold the lower side of the packaging film at the feeding station (91). The lower insert plate (3) is connected to the insert plate power source (4) that drives its movement. A sealing assembly (5) is used to seal the overlapping portion between the lower and upper sides of the packaging film at the sealing station (92); Its features are: When the transfer assembly (1) is at or away from the feeding station (91), the lower insert plate (3) extends out of the lower clamping component (12) due to relative displacement between the lower insert plate (3) and the lower clamping component (12). The transfer assembly (1) has at least one end of a holding path between the feeding station (91) and the sealing station (92). The lower insert plate (3) is held in the holding path and extended into the material receiving space (13). The lower insert plate (3) has an attachment plane perpendicular to the upper support surface of the lower clamping component (12). The attachment plane contacts the lower side outer surface of the packaging film and keeps it always attached to the side of the stacked material on the holding path. The lower insert plate (3) is withdrawn from the material receiving space (13) before or when it reaches the sealing station (92). The transfer component (1) is set on the main turntable (7). The main turntable (7) is circumferentially equipped with a feeding station (91), a sealing station (92), a discharging station (93), and a transition station (94). The distance between each station is equal. The main turntable (7) is connected to a conveying power source (2) that drives it to rotate periodically at a certain time interval. The conveying power source (2) drives the main turntable (7) to rotate, causing the transfer component (1) to move cyclically on each station. The discharging station (93) is equipped with a pushing mechanism to push out the material that has been sealed on the side.

2. The soft tissue packaging machine with a synchronous upper insertion and holding film packaging mechanism according to claim 1, characterized in that: The sealing assembly (5) includes a sealing head (51) and a sealing power source (53) that drives its lifting and lowering movement. A film pressing rope (52) is provided on the sealing station (92). The film pressing rope (52) is spaced apart to allow the sealing head (51) to contact the packaging film. The upper clamping part (11) and the lower clamping part (12) of the transfer assembly (1) are provided with a relief groove (14) on the side near the sealing head (51) for the film pressing rope (52) to extend into.

3. The soft tissue packaging machine with a synchronous upper insertion and holding film packaging mechanism according to claim 2, characterized in that: The movement of the transfer assembly (1) causes the pressure rope (52) to extend into the clearance groove (14). Before the lower insert plate (3) is completely removed from the material receiving space (13), the upper side of the packaging film contacts the pressure rope (52) and the contact area increases with the movement of the transfer assembly (1). When the transfer assembly (1) is in the sealing position (92), the upper and lower sides of the packaging film overlap and are pressed by the pressure rope (52).

4. The soft tissue packaging machine with a synchronous upper insertion and holding film packaging mechanism according to claim 3, characterized in that: A relative displacement occurs between the lower insert plate (3) and the lower clamping component (12). When the transfer assembly (1) maintains the end point of the path, the lower insert plate (3) is in a horizontal or near-horizontal state when it exits the material receiving space (13). When the lower insert plate (3) exits the material receiving space (13), the upper side of the packaging film covers the side of the material on the end cap (51) under the action of gravity.

5. The soft tissue packaging machine with a synchronous upper insertion and holding film packaging mechanism according to any one of claims 2-4, characterized in that: It also includes an inlet plate (61) and a pushing mechanism. The upper and lower inlet plates (61) are connected to the inlet side of the transfer component (1) of the feeding station (91). At least the upper inlet plate (61) is provided with spaced protrusions (62). The protrusions (62) are matched with the clearance groove (14). When the transfer component (1) leaves the feeding station (91), the inlet plate (61) contacts the upper side of the packaging film and covers the lower insert plate (3).

6. The soft tissue packaging machine with a synchronous upper insertion and retaining film packaging mechanism according to claim 2, characterized in that: The transfer component (1) is set on the main turntable (7), which is connected to a conveying power source (2) that drives it to rotate. The conveying power source (2) drives the main turntable (7) to rotate, so that the transfer component (1) moves from the feeding station (91) to the sealing station (92).

7. The soft tissue packaging machine with a synchronous upper insertion and retaining film packaging mechanism according to claim 6, characterized in that: The insert plate clearance groove (121) and clearance groove (14) of the lower clamping component (12) are staggered. The lower insert plate (3) is comb-shaped and the cross section of the vertical plane is L-shaped. The comb units are spaced apart and can pass through the insert plate clearance groove (121). The lower insert plate (3) is mounted on the mounting beam (31). The mounting beam (31) is connected to the insert plate power source (4).

8. The soft tissue packaging machine with a synchronous upper insertion and holding film packaging mechanism according to claim 7, characterized in that: The insert plate power source (4) is a direct drive force source. The insert plate power source (4) is installed on the main turntable (7). The insert plate power source (4) drives the lower insert plate (3) to move relative to the lower clamping component (12).

9. The soft tissue packaging machine with a synchronous upper insertion and retaining film packaging mechanism according to claim 6 or 7, characterized in that: The mounting beam (31) is connected to the cam swing arm (32). The cam swing arm (32) or the mounting beam (31) is connected to the main turntable (7) in a transmission connection. When the main turntable (7) rotates, it drives the mounting beam (31) to make the lower insert plate (3) move with the transfer component (1). A secondary turntable (8) parallel to the main turntable (7) is also provided behind it. A cam action surface (81) is provided on the secondary turntable (8). The two ends of the cam swing arm (32) are respectively provided with rollers (33) that cooperate with the cam action surface (81) and slide grooves (321) that cooperate with the mounting beam (31). The cam swing arm (32) is connected to the main turntable (7) by a spring (71). The rotation of the main turntable (7) drives the cam swing arm (32) to move in a circular motion.

10. The soft tissue packaging machine with a synchronous upper insertion and retaining film packaging mechanism according to claim 9, characterized in that: The secondary turntable (8) is connected to a plate power source (4) that drives it to reciprocate. The plate power source (4) drives the secondary turntable (8) to move before the transfer assembly (1) moves to the feeding station (91). When the transfer assembly (1) moves to the feeding station (91), the lower plate (3) remains in a state where it does not extend into the material receiving space (13). The main turntable (7) continues to rotate so that the cam action surface (81) acts on the roller (33), thereby causing one end of the slide groove (321) of the cam swing arm (32) to... As the cam action surface (81) gradually rises, the lower insert plate (3) inserts into the material receiving space (13) while the transfer component (1) moves and remains in the material receiving space (13) on the holding path; before entering the sealing station (92), the main turntable (7) continues to rotate so that the cam action surface (81) acts on the roller (33), so that one end of the slide groove (321) of the cam swing arm (32) gradually descends, and the lower insert plate (3) gradually withdraws from the material receiving space (13).

11. The soft tissue packaging machine with a synchronous upper insertion and holding film packaging mechanism according to claim 9, characterized in that: The auxiliary turntable (8) is fixed. The insertion plate power source (4) and the conveying power source (2) are the same power source. The conveying power source (2) drives the main turntable (7) to rotate, so that the cam action surface (81) on the auxiliary turntable (8) acts on the roller (33). As a result, one end of the cam swing arm (32) slide groove (321) gradually rises along the cam action surface (81). The lower insertion plate (3) inserts into the material receiving space (13) while the transfer component (1) moves and remains inserted into the material receiving space (13) on the holding path. Before entering the sealing station (92), the conveying power source (2) drives the main turntable (7) to continue rotating, so that the cam action surface (81) acts on the roller (33). As a result, one end of the cam swing arm (32) slide groove (321) gradually descends, and the lower insertion plate (3) gradually withdraws from the material receiving space (13).

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