Sealing packaging processing system

Abstract

The present application relates to the field of wet wipes packaging equipment, and in particular to a sealing packaging processing system, including a frame and a sealing packaging device mounted on the frame, the sealing packaging device including two knife holders for mounting heat sealing knives, and also including a driving structure for driving the heat sealing knives to move, the driving structure including two rotating wheels, the knife holders are rotatably mounted on the rotating wheels, the rotating wheels can drive the knife holders to move along a circular path, the heat sealing knives are slidably connected to the knife holders, sliding the heat sealing knives can make the two heat sealing knives approach or move away from each other, and the knife holders are also provided with a buffer component for keeping the heat sealing knives moving in a direction close to another heat sealing knife. The present application has the effect of improving the heat sealing effect.

Description

Technical Field

[0001] The present application relates to the technical field of wet wipes packaging equipment, and in particular to a sealing packaging processing system. Background Art

[0002] With the development of electronic technology and automation technology, the packaging process of wet wipes has gradually been replaced by automated equipment.

[0003] The packaging processing equipment commonly used in the wet wipes packaging process mainly includes a frame, a bag making device and a sealing and cutting device installed on the frame. A conveyor belt is set on the frame. During the wet wipes packaging process, the wet wipes stacks (referring to the wet wipes blocks formed by stacking multiple layers of wet wipes) are arranged at intervals on the conveyor belt and transported by the conveyor belt. The sheet-like packaging film is wrapped around the outside of the wet wipes, and the overlapping parts of the two edges of the packaging film form a side seal. The bag making device heat-seals the side seals to form a packaging tube with a tubular structure. The sealing packaging device mainly includes two heat-sealing knives set at intervals. As the conveying device runs, the packaging tube passes through the gap between the two heat-sealing knives. The heat-sealing knives approach each other and squeeze the packaging tube to make the side walls of the packaging tube bonded, and then cut to form a single wet wipes package.

[0004] In the actual processing and packaging process, when the packaging processing equipment runs at high speed, it is easy for the heat sealing knife to not heat the packaging film enough time, resulting in poor sealing effect of the wet wipes package. Utility Model Content

[0005] In order to improve the heat sealing effect of a heat sealing system, the present application provides a sealing packaging processing system.

[0006] The sealing packaging processing system provided in this application adopts the following technical solution:

[0007] A sealing and packaging processing system comprises a frame and a sealing and packaging device mounted on the frame, wherein the sealing and packaging device comprises two tool holders for mounting heat sealing knives, and also comprises a driving structure for driving the heat sealing knives to move, wherein the driving structure comprises two rotating wheels, wherein the tool holders are rotatably mounted on the rotating wheels, wherein the rotation of the rotating wheels can drive the tool holders to move along a circular path, wherein the heat sealing knives are slidably connected to the tool holders, wherein sliding the heat sealing knives can make the two heat sealing knives approach or move away from each other, and wherein the tool holders are also provided with a buffer assembly for keeping the heat sealing knives moving in a direction close to the other heat sealing knives.

[0008] By adopting the above technical solution, the rotating wheel drives the knife holder to move along a circular trajectory, and the movement of the knife holder can be decomposed into two mutually perpendicular directions. That is, the movement in the direction close to or away from the wet wipes packaging tube, and the movement in the direction parallel to the moving direction of the wet wipes packaging tube. The displacement of the knife holder in the direction parallel to the wet wipes packaging tube enables the heat sealing knife installed on the knife holder to move synchronously with the wet wipes packaging tube. At the same time, by controlling the rotation of the knife holder relative to the rotating wheel, the heat sealing knife can always maintain the same state, and then cooperate with the buffer component to make the two heat sealing knives approach each other, so as to increase the contact time between the heat sealing knife and the packaging tube and improve the heat sealing effect.

[0009] Optionally, a limit assembly is provided between the two tool holders, the limit assembly comprising a vertical shaft, one end of the vertical shaft is fixedly connected to one of the tool holders, and the other end is slidably connected to the other tool holder along a direction parallel to the sliding direction of the heat sealing knife.

[0010] By adopting the above technical solution, the vertical shaft connects the two knife holders to form a connecting rod mechanism, which limits the state of the knife holder in the process of following the movement of the rotating wheel, thereby reducing the situation where the direction of the heat sealing knife on the knife holder changes during the rotation of the rotating wheel. At the same time, the vertical shaft is slidably connected to one of the knife holders to adapt to the two knife holders approaching or moving away from each other.

[0011] Optionally, the upper tool holder of the two tool holders is defined as an upper tool holder, the lower tool holder is defined as a lower tool holder, the upper rotating wheel of the two rotating wheels is defined as an upper rotating wheel, and the lower rotating wheel is defined as a lower rotating wheel; the lower tool holder is rotatably connected to the upper rotating wheel, one end of the vertical axis is rotatably connected to the lower rotating wheel, and the other end passes through the lower tool holder and is fixedly connected to the upper tool holder.

[0012] By adopting the above technical solution, the upper tool holder is fixedly connected to the vertical shaft, and the vertical shaft is rotatably connected to the rotating wheel, so as to realize the rotation connection between the tool holder and the rotating wheel. At the same time, the vertical shaft passes through the lower tool holder to realize the sliding connection between the lower tool holder and the vertical shaft, thereby realizing the sliding connection between the two tool holders.

[0013] Optionally, a plurality of the vertical axes are arranged at intervals along a direction perpendicular to the vertical axis' length.

[0014] By adopting the above technical solution, a plurality of vertical axes connect the two tool holders, and the rotation of the tool holders is limited, thereby improving the stability of the tool holders during movement.

[0015] Optionally, the limiting assembly further includes a rotating block, the rotating block is rotatably connected to the lower rotating wheel, and the vertical shaft is fixedly connected to the rotating block.

[0016] By adopting the above technical solution, the vertical shaft is rotatably connected to the rotating wheel through the mounting block, so as to facilitate the installation of multiple vertical shafts.

[0017] Optionally, a connecting component is provided between the tool holder and the rotating wheel, the connecting component includes a fixing part, an eccentric shaft hole is opened on the rotating wheel, the fixing part is detachably connected in the eccentric shaft hole, the tool holder is rotatably connected to the fixing part, a plurality of eccentric shaft holes are arranged around the rotating axis of the rotating wheel, and the distances between the plurality of eccentric shaft holes and the rotating axis of the rotating wheel are different.

[0018] By adopting the above technical solution and installing the fixing parts in different eccentric shaft holes, the displacement of the heat sealing knife driven by the rotating wheel in two mutually perpendicular directions can be changed to adapt to the packaging of wet wipes of different specifications.

[0019] Optionally, a gear ring is provided on the rotating wheel, and two gear rings are meshed with each other.

[0020] By adopting the above technical solution and setting the tooth grooves, the two rotating wheels can rotate synchronously, which makes it convenient for the staff to control the rotation of the rotating wheels.

[0021] Optionally, the buffer assembly includes a sliding seat and an elastic member, wherein the sliding seat is slidably connected to the tool holder for fixing the heat sealing knife, and the elastic member is installed on the tool holder for keeping the sliding seat in a tendency to move toward another tool holder.

[0022] By adopting the above technical solution, the heat sealing knife is installed on the sliding seat, and the sliding sliding seat can drive the heat sealing knife to move, thereby realizing the sliding connection between the heat sealing knife and the knife holder. Under the action of the elastic member, the elastic member applies elastic force to the sliding seat, so that the sliding seat has a sliding tendency.

[0023] Optionally, the frame is further provided with an insert assembly, which includes an insert pin slidably connected to the frame and corresponding to the heat sealing knife. Sliding the insert pin can make the insert pin approach or move away from the packaging tube for packaging wet wipes.

[0024] By adopting the above technical solution, the sliding pin brings the pin close to and abuts against the packaging tube, so that the side wall of the packaging tube can be recessed inwardly, thereby improving the aesthetics of the wet wipes package after sealing.

[0025] Optionally, the corner assembly also includes a translation seat, which is slidably connected to the frame in a direction parallel to the moving direction of the packaging tube during the wet wipes packaging process, and two stop wheels are provided on the translation seat. The vertical axis is located between the two stop wheels and abuts against the side wall of the vertical axis.

[0026] By adopting the above technical solution, when the rotating wheel drives the vertical axis to move, the vertical axis also produces displacements in two mutually perpendicular directions. Under the action of the blocking wheel, the translation seat can be driven to move during the movement of the vertical axis, so that the insertion pin always corresponds to the heat sealing knife.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The heat sealing knife is driven to move vertically and horizontally by the rotating wheel, and the vertical displacement of the heat sealing knife is offset by the buffer component, so that the heat sealing knife can move synchronously with the packaging tube for a specific distance, thereby increasing the contact time between the heat sealing knife and the packaging tube and improving the heat sealing effect.

[0029] 2. The setting of the elastic member in the buffer assembly enables the heat sealing knife to exert a certain pressure on the packaging tube, thereby improving the heat sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure from a first angle of an embodiment of the present application.

[0031] Figure 2 It is a schematic diagram of the overall structure from a second angle of an embodiment of the present application.

[0032] Figure 3 This is an embodiment of the present application Figure 2 Enlarged view of part A.

[0033] Figure 4 It is a schematic structural diagram of a sealing and packaging device according to an embodiment of the present application.

[0034] Figure 5 It is a schematic diagram of the structure of the connection component of an embodiment of the present application.

[0035] Reference numerals: 1, frame; 2, bag making device; 21, conveying plate; 22, traction assembly; 221, clamping wheel; 23, heating assembly; 231, heating block; 24, extrusion assembly; 241, extrusion wheel; 25, shearing assembly; 251, upper shearing wheel; 252, lower shearing wheel; 3, belt conveying mechanism; 4, conveying mechanism; 41, conveyor belt; 42, pressing assembly; 421, connecting frame; 422, pulley; 423, conveyor belt; 5, sliding frame; 6, sealing and packaging device; 61, knife holder; 7, driving structure; 7 1. Rotating wheel; 72. Limiting assembly; 721. Vertical axis; 722. Sliding hole; 723. Rotating block; 73. Driving gear; 74. Driving shaft; 75. Driving member; 76. Gear ring; 8. Connecting assembly; 81. Fixing member; 811. Fixed shaft; 812. Retaining ring; 813. Locking nut; 82. Bearing; 83. Mounting groove; 84. Eccentric shaft hole; 9. Buffer assembly; 91. Sliding seat; 92. Elastic member; 10. Angle assembly; 101. Pin; 102. Cylinder; 103. Retaining wheel; 104. Translation seat. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-5This application is described in further detail.

[0037] The embodiment of the present application discloses a sealing packaging processing system.

[0038] Reference Figure 1 and Figure 2 A sealing and packaging processing system includes a frame 1, a bag making device 2 installed on the frame 1, and a sealing and packaging device 6. On both sides of the frame 1 where the bag making device and the sealing device are far away from each other, a belt conveying mechanism 3 is provided (the belt conveying mechanism 3 on the side of the bag making device 2 away from the sealing and packaging device 6 is not shown in the figure). The belt conveying mechanism 3 is mainly used to convey materials (here, the materials are wet wipes stacks, packaging films, packaging tubes, wet wipes packages after packaging, etc.) to ensure the transmission of materials during the operation of the equipment. During the wet wipes packaging process, the packaging film is wrapped around the outside of the wet wipes arranged at intervals and is conveyed by the belt conveying structure 3. The two edges of the packaging film overlap to form a side seal, and the side seal is parallel to the length direction of the packaging tube. The belt conveying structure 3 drives the packaging film to approach the bag making device 2, and the bag making device 2 heat-seals the side seal to form a packaging tube. Then the packaging tube approaches the sealing and packaging device 6, and the sealing and packaging device 6 heat-seals the packaging tube in a direction perpendicular to the length direction of the packaging tube, that is, heat-seals the end of the wet wipes package to complete the packaging of the wet wipes.

[0039] Reference Figure 1 and Figure 2 A conveying plate 21 is provided on the frame 1, and the conveying plate 21 is located above the bag making device 2. An avoidance groove is opened on the conveying plate 21, and the side sealing edge of the packaging film extends toward the direction close to the bag making device 2 through the avoidance hole.

[0040] Reference Figure 2 and Figure 3 The bag making device 2 includes a traction assembly 22, a heating assembly 23, an extrusion assembly 24 and a shearing assembly 25 arranged along the moving direction of the packaging tube. The traction assembly 22 is used to drive the packaging film to move, and the heating assembly 23 is used to heat and connect the side edge seals. The extrusion assembly 24 is used to further extrude the side edge seals to improve the stability of the connection between the two sides of the packaging film. The shearing assembly 25 is used to extrude the side edge seals to make them fit with the packaging film.

[0041] Reference Figure 2 and Figure 3 The traction assembly 22 includes two clamping wheels 221, which are respectively arranged on both sides of the trajectory line of the moving direction of the packaging film. The clamping wheels 221 are driven by a servo motor. During the operation of the packaging equipment, the side seal passes between the two clamping wheels 221 and is pulled by the clamping wheels 221 to move toward the direction close to the heating assembly 23.

[0042] Reference Figure 2 and Figure 3The heating assembly 23 includes two heating blocks 231, which are respectively placed on both sides of the trajectory line of the moving direction of the packaging film. There is a gap between the two heating blocks 231 for the side edge seal to pass through. A heating rod for heating the heating block 231 is arranged inside the heating block 231. When the side edge seal passes between the two heating blocks 231, the heating block 231 can heat the packaging film to make it preliminarily connected.

[0043] Reference Figure 2 and Figure 3 The extrusion assembly 24 includes two extrusion wheels 241, which are respectively arranged on both sides of the trajectory line of the moving direction of the packaging film. Here, the extrusion wheels 241 are directly driven by a servo motor. A gap is arranged between the two extrusion wheels 241 for the packaging film to pass through. When the packaging film is located between the two extrusion wheels 241, the extrusion wheels 241 apply pressure to the side sealing edge of the packaging film to improve the stability of the connection between the two layers of packaging film. At the same time, the extrusion wheels 241 drive the packaging film to approach the shearing assembly 25.

[0044] Reference Figure 2 and Figure 3 The shearing assembly 25 includes an upper shearing wheel 251 and a lower shearing wheel 252, which are respectively arranged on both sides of the trajectory line of the moving direction of the packaging film and are rotatably connected to the frame 1. Here, the upper shearing wheel 251 and the lower shearing wheel 252 are also driven by a servo motor. The upper shearing wheel 251 is located above the lower shearing wheel 252, and the sides of the upper shearing wheel 251 and the lower shearing wheel 252 that are close to each other are flush, and a gap is set with the conveying plate 21. When the packaging tube moves between the connecting wheel and the lower shearing wheel 252, the shearing force between the upper shearing wheel 251 and the lower shearing wheel 252 can shear the excess part of the side sealing edge, thereby improving the aesthetics of the wet wipes after packaging.

[0045] Reference Figure 2 and Figure 3 A conveying mechanism 4 is provided between the shearing assembly 25 and the sealing and packaging device 6. The conveying mechanism 4 includes a conveyor belt 41 provided flush with the conveying plate 21, and a pressing assembly 42 located above the conveyor belt 41. The pressing assembly 42 includes a connecting frame 421 and a plurality of pulleys 422 provided on the connecting frame 421 along the moving direction of the packaging film. A conveyor belt 423 is sleeved on the plurality of pulleys 422. The connecting frame 421 can slide in a vertical direction. When the wet wipes move onto the conveyor belt 41, the connecting frame 421 is moved downward so that the conveyor belt 423 is pressed on the wet wipes, thereby clamping the wet wipes and improving the stability of the wet wipes during transportation.

[0046] Reference Figure 2 and Figure 3A sliding frame 5 is provided on the frame 1 for sliding along the vertical direction, and a sealing and packaging device 6 is fixedly connected to the sliding frame 5. The sliding of the sliding frame 5 can drive the sealing and packaging device 6 to move in the vertical direction, thereby changing the position of the sealing and packaging device 6 sealing the packaging tube to adapt to the sealing and packaging of wet wipes of different specifications.

[0047] Reference Figure 2 and Figure 4 The sealing packaging device 6 includes two knife racks 61 and a driving structure 7 that drives the two knife racks 61 to move along a circular trajectory. The two knife racks 61 are arranged at intervals in the vertical direction. A heat sealing knife is fixedly installed on one side of the knife racks 61 that is close to each other. When the knife racks 61 move along the circular path, the heat sealing knife can be displaced in the vertical and horizontal directions. The horizontal displacement of the heat sealing knife enables the heat sealing knife to move with the packaging tube, thereby lengthening the contact time between the heat sealing knife and the packaging tube and improving the heat sealing effect.

[0048] Reference Figure 4 and Figure 5 The driving structure 7 includes two rotating wheels 71 arranged in the vertical direction, and the rotating wheels 71 are rotatably connected to the frame 1. The two tool holders 61 are respectively connected to the rotating wheels 71 at positions away from the rotating axis of the rotating wheels 71, so that the rotating wheels 71 drive the two tool holders 61 to move along a circular trajectory.

[0049] Reference Figure 4 and Figure 5 , the knife holder 61 can rotate relative to the rotating wheel 71, so that during the rotation of the rotating wheel 71, the heat sealing knife on the knife holder 61 can be kept in a vertical state by rotating the knife holder 61. The driving structure 7 also includes a limit assembly 72, which is arranged between the two rotating wheels 71. The limit assembly 72 is used to keep the heat sealing knife package in a vertical state, thereby improving the stability of the heat sealing knife during the heat sealing process of the packaging tube. The limit assembly 72 includes a vertical shaft 721, one end of the vertical shaft 721 is fixedly connected to one of the knife holders 61, and the other end is slidably matched with the other knife holder 61 in the vertical direction. The vertical distance between the rotation axis of the two knife holders 61 and the rotation axis of the corresponding rotating wheels 71 is equal, so that the projections on the horizontal plane correspond during the synchronous rotation of the two rotating wheels 71, thereby enabling the vertical shaft 721 to always remain in a vertical state, and further enabling the heat sealing knife on the knife holder 61 to remain in a vertical state.

[0050] Reference Figure 4 and Figure 5, define the upper tool holder 61 of the two tool holders 61 as the upper tool holder 61, and the lower tool holder 61 as the lower tool holder 61. Define the lower rotating wheel 71 of the two rotating wheels 71 as the lower rotating wheel 71, and define the upper rotating wheel 71 as the upper rotating wheel 71. In this embodiment, the upper tool holder 61 and the lower rotating wheel 71 are respectively located on both sides of the lower tool holder 61. The lower tool holder 61 corresponds to the upper rotating wheel 71 and is rotationally connected to the upper rotating wheel 71. One end of the vertical shaft 721 close to the ground is rotationally connected to the lower rotating wheel 71, and the other end is fixedly connected to the upper tool holder 61, so as to realize the rotational connection between the upper tool holder 61 and the rotating wheel 71. A sliding hole 722 is provided on the lower tool holder 61, and the vertical shaft 721 is slidably penetrated in the sliding hole 722, so as to realize the relative sliding connection between the two tool holders 61. By adopting the above arrangement, the layout of the equipment is adjusted and the space occupied by the equipment is reduced.

[0051] Reference Figure 4 and Figure 5 The limiting assembly 72 further includes a rotating block 723, which is rotatably connected to the lower rotating wheel 71, and one end of the vertical shaft 721 close to the ground is fixedly connected to the rotating block 723 to facilitate the installation of the vertical shaft 721. A plurality of vertical shafts 721 can be arranged at intervals in a direction perpendicular to their own length. In this embodiment, two are arranged to improve the stability of the two tool holders 61 during the relative sliding process.

[0052] Reference Figure 4 and Figure 5 , a toothed ring 76 is sleeved on the rotating wheel 71, and the two toothed rings 76 mesh with each other so that the two rotating wheels 71 can rotate synchronously. In order to improve the stability of the two tool holders 61 during movement, the rotating wheels 71 are arranged in two groups, and the two groups of rotating wheels 71 are respectively arranged on both sides of the tool holder 61 to support the two sides of the tool holder 61. The driving structure 7 also includes two driving gears 73 corresponding to the two groups of rotating wheels 71, a driving shaft 74 coaxially fixedly connected with the two driving gears 73 (in this embodiment, the connection is made by expansion sleeve locking), and a driving member 75 for driving the driving shaft 74 to rotate. The driving gear 73 meshes with one of the rotating wheels 71, and the driving member 75 can drive the two groups of rotating wheels 71 to rotate when driving the driving shaft 74 to rotate. In this embodiment, the driving member 75 is a reduction motor, the output shaft of the reduction motor is coaxially welded with the driving shaft 74, and the housing of the reduction motor is fixedly connected to the frame 1.

[0053] Reference Figure 4 and Figure 5A connecting assembly 8 is provided between the tool holder 61 and the rotating wheel 71 and between the rotating block 723 and the rotating wheel 71. The tool holder 61 or the rotating block 723 is rotatably connected to the rotating wheel 71 through the connecting assembly 8. Here, the connecting assembly 8 corresponding to the tool holder 61 is described in detail. The connecting assembly 8 includes a fixing member 81 and a bearing 82. The fixing member 81 is fixedly connected to the rotating wheel 71. The bearing 82 is sleeved on the outside of the fixing member 81. The tool holder 61 is provided with a mounting groove 83 corresponding to the bearing 82. The bearing 82 is inserted into the mounting groove 83 to realize the rotational connection between the fixing member 81 and the tool holder 61, and then realize the rotational connection between the rotating wheel 71 and the tool holder 61.

[0054] Reference Figure 4 and Figure 5 The fixing member 81 includes a fixing shaft 811, a retaining ring 812 and a locking nut 813. An eccentric shaft hole 84 is provided on the rotating wheel 71, and one end of the rotating wheel 71 is inserted into the eccentric shaft hole 84. The retaining ring 812 and the locking nut 813 are sleeved on the fixing shaft 811, and the retaining ring 812 and the locking nut 813 are respectively arranged on both sides of the rotating wheel 71 along the length direction of the fixing shaft 811. The retaining ring 812 is integrally formed with the fixing shaft 811, and the locking nut 813 is threadedly connected to the fixing shaft 811. Rotating the locking nut 813 can make the locking nut 813 press against the rotating wheel 71, thereby realizing a fixed connection between the fixing shaft 811 and the rotating wheel 71.

[0055] Reference Figure 4 and Figure 5 The eccentric shaft hole 84 can be arranged in multiple numbers around the rotation axis of the rotating wheel 71. In this embodiment, four eccentric shaft holes are arranged. The vertical distances between the axes of different eccentric shaft holes 84 and the rotation axis of the rotating wheel 71 are different. During the heat-sealing packaging of wet wipes, the distance of the heat-sealing knife moving in the vertical direction can be adjusted by changing the position of the eccentric shaft hole 84 installed on the fixing member 81 to adapt to the heat-sealing packaging of wet wipes of different specifications.

[0056] Reference Figure 4 and Figure 5 A buffer assembly 9 is provided between the heat sealing knife and the knife holder 61, and the buffer assembly 9 is used to keep the heat sealing knife in a trend of moving in a direction close to another heat sealing knife. The buffer assembly 9 includes an elastic member 92 and a sliding seat 91, the sliding seat 91 is slidably connected to the knife holder 61 along the vertical direction, and the heat sealing knife is fixedly connected to the sliding seat 91. The sliding sliding seat 91 can drive the heat sealing knife to approach the heat sealing knife on the other knife holder 61. The elastic member 92 is installed on the knife holder 61, and is used to keep the sliding seat 91 in a trend of moving in a direction close to another knife holder 61. In this embodiment, the elastic member 92 is a spring, one end of which is connected to the knife holder 61, and the other end is connected to the sliding seat 91.

[0057] Reference Figure 4 and Figure 5 For the convenience of description, the state when the distance between the two groups of connecting components 8 is the largest is defined as the open and closed state of the heat sealing knife, and the state when the distance between the two groups of connecting components 8 is the smallest is defined as the heat sealing state. In the open and closed state, the elastic member 92 does not store elastic potential energy, and there is a gap between the two heat sealing knives for the packaging tube to pass through. In the heat sealing state, the elastic member 92 stores elastic potential energy, and the two heat sealing knives can apply a certain pressure to the packaging tube of the wet wipes. At the same time, in this state, the rotating wheel 71 continues to rotate, and the two heat sealing knives can automatically move towards each other under the action of the elastic member 92, thereby offsetting the displacement of the heat sealing knife in the vertical direction during the rotation of the rotating wheel 71, so that the heat sealing knife is always in contact with the packaging tube.

[0058] Reference Figure 4 and Figure 5 The sealing position of the wet wipes package is concave on both sides to improve the overall aesthetics of the wet wipes package. Figure 2 Two groups of angle assemblies 10 are arranged on the sliding frame 5, and the two groups of angle assemblies 10 are respectively arranged on both sides of the trajectory line of the moving direction of the packaging tube. The angle assemblies 10 include a pin 101 slidably connected to the sliding frame 5 in a horizontal direction and perpendicular to the moving direction of the packaging tube, and a cylinder 102 for driving the pin 101 to move. The pin 101 is arranged corresponding to the heat sealing knife, and the pin 101 is installed on the piston rod of the cylinder 102. The movement of the piston rod of the cylinder 102 can drive the pin 101 to approach and abut the packaging tube, thereby causing a depression on the side of the packaging tube.

[0059] Reference Figure 4 and Figure 5 The plug-in angle assembly 10 also includes a translation seat 104, which is slidably connected to the sliding frame 5 in a direction parallel to the moving direction of the packaging tube, and the cylinder 102 is installed on the translation seat 104. Two blocking wheels 103 are arranged on the translation seat 104, and the two blocking wheels 103 are arranged on the translation seat 104 at intervals in a direction parallel to the sliding direction of the translation seat 104, and can rotate relative to the translation seat 104. The two vertical shafts 721 are located between the two blocking wheels 103, and the side walls of the vertical shafts 721 abut against the side walls of the blocking wheels 103. When the vertical shaft 721 is displaced in the horizontal direction, it can drive the translation seat 104 to move, so that the insertion pin 101 always corresponds to the heat sealing knife. When the vertical shaft 721 is displaced in the vertical direction, the rotating wheel 71 can rotate to reduce the friction between the blocking wheels 103 and the vertical shaft 721.

[0060] The implementation principle of a sealing packaging processing system in an embodiment of the present application is: the heat sealing knife is driven to move along a circular path by a rotating wheel 71, so that the heat sealing knife is displaced in the horizontal direction, and at the same time, the buffer component 9 is used to offset the displacement of the heat sealing knife in the vertical direction, thereby increasing the contact time between the heat sealing knife and the packaging tube, and improving the heat sealing effect of the wet wipes packaging bag during high-speed operation of the equipment.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sealing and packaging processing system, comprising a frame (1) and a sealing and packaging device (6) mounted on the frame (1), the sealing and packaging device (6) comprising two knife racks (61) for mounting heat sealing knives, and also comprising a driving structure (7) for driving the heat sealing knives to move, characterized in that: The driving structure (7) comprises two rotating wheels (71), the knife holder (61) is rotatably mounted on the rotating wheels (71), the rotating wheels (71) can drive the knife holder (61) to move along a circular path when rotating, the heat sealing knife is slidably connected to the knife holder (61), and sliding the heat sealing knife can make the two heat sealing knives approach or move away from each other, and the knife holder (61) is also provided with a buffer component (9) for keeping the heat sealing knife moving in a direction close to the other heat sealing knife.

2. A sealing and packaging processing system according to claim 1, characterized in that: A limit assembly (72) is provided between the two knife racks (61), the limit assembly (72) comprising a vertical shaft (721), one end of the vertical shaft (721) being fixedly connected to one of the knife racks (61), and the other end of the vertical shaft (721) being slidably connected to the other knife rack (61) in a direction parallel to the sliding direction of the heat sealing knife.

3. A sealing and packaging processing system according to claim 2, characterized in that: The upper tool holder (61) of the two tool holders (61) is defined as an upper tool holder, the lower tool holder (61) is defined as a lower tool holder, the upper rotating wheel (71) of the two rotating wheels (71) is defined as an upper rotating wheel, and the lower rotating wheel (71) is defined as a lower rotating wheel; the lower tool holder is rotatably connected to the upper rotating wheel, one end of the vertical shaft (721) is rotatably connected to the lower rotating wheel, and the other end passes through the lower tool holder and is fixedly connected to the upper tool holder.

4. A sealing and packaging processing system according to claim 3, characterized in that: A plurality of the vertical axes (721) are arranged at intervals along a direction perpendicular to the vertical axis (721).

5. A sealing and packaging processing system according to claim 4, characterized in that: The position-limiting assembly (72) further comprises a rotating block (723), wherein the rotating block (723) is rotatably connected to the lower rotating wheel, and the vertical shaft (721) is fixedly connected to the rotating block (723).

6. A sealing and packaging processing system according to any one of claims 2 to 5, characterized in that: A connecting assembly (8) is provided between the tool holder (61) and the rotating wheel (71), the connecting assembly (8) comprising a fixing member (81), an eccentric shaft hole (84) being provided on the rotating wheel (71), the fixing member (81) being detachably connected to the eccentric shaft hole (84), the tool holder (61) being rotatably connected to the fixing member (81), a plurality of the eccentric shaft holes (84) being provided around the rotating axis of the rotating wheel (71), and the distances between the plurality of the eccentric shaft holes (84) and the rotating axis of the rotating wheel (71) being different.

7. The sealing and packaging processing system according to claim 3, characterized in that: A toothed ring (76) is sleeved on the rotating wheel (71), and the two toothed rings (76) are meshed with each other.

8. The sealing and packaging processing system according to claim 1, characterized in that: The buffer assembly (9) comprises a sliding seat (91) and an elastic member (92); the sliding seat (91) is slidably connected to the knife holder (61) for fixing the heat sealing knife; the elastic member (92) is mounted on the knife holder (61) for maintaining the sliding seat (91) in a tendency to move in a direction close to another knife holder (61).

9. The sealing and packaging processing system according to claim 2, characterized in that: The frame (1) is also provided with an insert assembly (10), the insert assembly (10) comprising an insert pin (101) slidably connected to the frame (1) and corresponding to the heat sealing knife, and sliding the insert pin (101) can make the insert pin (101) approach or move away from a packaging tube for packaging wet wipes.

10. The sealing and packaging processing system according to claim 9, characterized in that: The corner insert assembly (10) further comprises a translation seat (104), the translation seat (104) being slidably connected to the frame (1) in a direction parallel to the moving direction of the packaging cylinder during the wet tissue packaging process, two blocking wheels (103) being arranged on the translation seat (104), and the vertical shaft (721) being located between the two blocking wheels (103) and abutting against the side wall of the vertical shaft (721).

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