Automatic packaging system and method of plastic film recycling machine

Abstract

The invention relates to the technical field of agricultural plastic film recycling, in particular to an automatic packaging system and method of a plastic film recycling machine. The automatic packaging system comprises a mounting frame, a crushing barrel, a collecting box and a compressing and packaging unit, and the compressing and packaging unit comprises a compressing plate, a driving mechanism, a pushing plate, a support and a driving cylinder; after it is observed through an observation window that the whole collecting box is preliminarily filled with the plastic film in the collecting box, a driving mechanism is started, a compression plate is driven to slide in the collecting box, the plastic film in the collecting box is compressed, when the compression plate is pushed to a first opening, compression of the plastic film in the collecting box is completed, a driving cylinder is started, and the plastic film in the collecting box is compressed; and the compressed plastic film is pushed into a collecting bag mounted at the mounting square frame through a pushing plate, so that packaging treatment of the recycled plastic film is completed, by adopting the technical scheme, the separated plastic film can be packaged, and the recycling efficiency of the plastic film is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural plastic film recycling, and in particular to an automatic packaging system and method of a plastic film recycling machine. Background Art

[0002] Agricultural plastic mulch is widely used in my country's agricultural production due to its excellent insulation, water retention, and fertilizer retention properties, significantly improving crop yields and quality. However, as the use of plastic mulch continues to increase, its recycling becomes increasingly problematic. Currently, agricultural plastic mulch recycling primarily involves fragmentation.

[0003] Patent document CN112571679A discloses a recycling and processing device for agricultural plastic film, comprising a shredder and a transmission mechanism. In this technical solution, two shredder mechanisms are disposed within the shredder, forming a shredding chamber with the two shredder mechanisms. The shredder mechanism comprises a rotating disc, to which a rectangular slider is slidably connected. The sliding direction and length of the slider are both aligned with the radial direction of the rotating disc. Tear-off posts are disposed along the length of the slider. An eccentrically arranged conical sleeve is disposed on one side of the rotating disc, and a slide is mounted on the sleeve. The slide is connected to the outer edge of the rotating disc via a ball joint via a conductive link, and the sleeve and the rotating disc rotate synchronously. Therefore, when the two rotating discs rotate in opposite directions, the film in the shredding chamber can be torn, achieving shredding. Under the control of the conical sleeve, the rectangular slider slides outward in one direction, while the tear-off posts on it can be immersed in the rectangular slider, thus preventing entanglement and blockage.

[0004] However, the existing plastic film recycling machine is not provided with a packaging unit, and cannot package the separated plastic film, which reduces the recycling efficiency of the plastic film. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic packaging system and method for a plastic film recycling machine, aiming to solve the technical problem that the existing plastic film recycling machine does not have a packaging unit, cannot package the separated plastic film, and reduces the recycling efficiency of the plastic film.

[0006] To achieve the above-mentioned object, the present invention provides an automatic packaging system for a plastic film recycling machine, comprising a mounting frame, a shredding cylinder, a collection box, and a compression packaging unit. The shredding cylinder is mounted in the middle of the mounting frame, a feed port is provided at the top of the shredding cylinder, a discharge port is provided at the bottom of the shredding cylinder, and the collection box is provided at the bottom of the mounting frame, and is located below the discharge port.

[0007] The compression and packaging unit includes a compression plate, a driving mechanism, a pushing plate, a bracket and a driving cylinder. An observation window is provided on the outer wall of the collection box, the compression plate is slidingly provided inside the collection box, and the driving mechanism is also installed on the outside of the collection box. The output end of the driving mechanism extends to the interior of the collection box and is connected to the compression plate. A first opening and a second opening are respectively provided on both sides of an end of the collection box away from the driving mechanism. The pushing plate is provided at the first opening. The bracket is also provided on the outside of the collection box. The driving cylinder is provided on the bracket, and the output end of the driving cylinder is connected to the pushing plate. An installation frame is provided outside the second opening, and a collection bag is provided at the installation frame.

[0008] Wherein, both sides of the compression plate are provided with limiting protrusions, and both sides of the interior of the collection box are provided with limiting grooves, and the limiting protrusions are adapted to the limiting grooves.

[0009] In which, the driving mechanism includes a limiting shaft, a driving component, a threaded rod and a connecting bearing; the limiting shaft is rotatably provided at one end of the collection box away from the first opening and the second opening; the internal thread of the limiting shaft is connected to the threaded rod; the end of the threaded rod located inside the collection box is connected to the compression plate through the connecting bearing; the driving component is also provided on the outside of the end of the collection box close to the limiting shaft; a transmission gear is provided on the outside of the limiting shaft; the output end of the driving component is mechanically transmitted to the transmission gear.

[0010] Wherein, the driving component includes a servo motor, a gear reduction box and an output gear. The servo motor is installed outside the collection box. The output end of the servo motor is provided with the gear reduction box. The output end of the gear reduction box is provided with the output gear, and the output gear is meshed with the transmission gear.

[0011] Among them, the limiting rotating shaft includes a shaft body and two limiting rings, the internal thread of the shaft body is connected to the threaded rod, the shaft body is rotatably connected to the end wall of the collection box, and two limiting rings are arranged on the outside of the shaft body, and the two limiting rings are respectively located on the inner and outer sides of the end wall of the collection box.

[0012] Among them, the automatic packaging system of the plastic film recycling machine also includes a protective shell, which is arranged on the outside of one end of the collection box away from the first opening and the second opening, and the protective shell is arranged on the outside of the output gear and the transmission gear.

[0013] In which, the protective shell includes a first half shell and a second half shell, the first half shell and the second half shell are respectively located on both sides of the output gear, a fixed foot is provided on a side of the first half shell close to the collection box, and the fixed foot is connected to the outer wall of the collection box, and the second half shell is connected to the first half shell and is located on a side of the first half shell away from the fixed foot.

[0014] The present invention also provides an automatic packaging method for a plastic film recycling machine, which is applied to the automatic packaging system of the plastic film recycling machine as described above, and comprises the following steps:

[0015] The collecting bag for collecting the compressed plastic film is installed at the second opening;

[0016] Adding the plastic film to be recycled into the crushing cylinder from the feed inlet, and crushing the plastic film using the crushing mechanism in the crushing cylinder;

[0017] The shredded plastic film enters the interior of the collection box through the discharge port. When the observation window shows that the plastic film in the collection box has initially filled the entire collection box, the driving mechanism is activated to drive the compression plate to slide inside the collection box to compress the plastic film in the collection box.

[0018] When the compression plate is pushed to the first opening, the plastic film in the collection box is compressed, the drive cylinder is started, and the compressed plastic film is pushed into the collection bag through the pushing plate, completing the packaging of the recycled plastic film.

[0019] The present invention provides an automatic packaging system and method for a plastic film recycling machine, including a mounting frame, a shredding cylinder, a collection box and a compression packaging unit, wherein the compression packaging unit includes a compression plate, a driving mechanism, a pushing plate, a bracket and a driving cylinder, and a first opening and a second opening are respectively provided on both sides of an end of the collection box away from the driving mechanism. When the plastic film in the collection box is observed to initially fill the entire collection box through the observation window, the driving mechanism is started to drive the compression plate to slide inside the collection box to compress the plastic film in the collection box. When the compression plate is pushed to the first opening, the compression of the plastic film in the collection box is completed, and the driving cylinder is started to push the compressed plastic film into the collection bag installed at the mounting frame through the pushing plate, thereby completing the packaging of the recycled plastic film. The adoption of this technical solution can package the separated plastic film, thereby improving the recycling efficiency of the plastic film. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of the automatic packaging system of the plastic film recycling machine according to the first embodiment of the present invention.

[0022] Figure 2 Schematic diagram of the external structure of the collection box in the first embodiment of the present invention.

[0023] Figure 3 Schematic diagram of the connection structure between the driving mechanism and the compression plate in the first embodiment of the present invention.

[0024] Figure 4 The present invention provides Figure 3 A magnified view of the local structure at A.

[0025] Figure 5 Schematic diagram of the internal structure of the collection box in the first embodiment of the present invention.

[0026] Figure 6 Schematic diagram of the external structure of the collection box in the second embodiment of the present invention.

[0027] Figure 7 The present invention provides Figure 6 A magnified view of the local structure at point B.

[0028] Figure 8 The present invention provides a flowchart of the steps of the automatic packaging method of the plastic film recycling machine.

[0029] 101-mounting frame, 102-crushing cylinder, 103-collecting box, 104-compression plate, 105-pushing plate, 106-bracket, 107-driving cylinder, 108-threaded rod, 109-connecting bearing, 110-servo motor, 111-gear reduction box, 112-output gear, 113-shaft, 114-limiting ring, 115-feeding port, 116-discharging port, 117-observation window, 118-first opening, 119-second opening, 120-mounting frame, 121-collecting bag, 122-limiting protrusion, 123-limiting groove, 124-transmission gear, 125-annular groove, 126-ball, 201-first half shell, 202-second half shell, 203-fixing foot, 204-lubricating oil injection pipe. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0031] First embodiment:

[0032] See also Figures 1 to 5 ,in Figure 1 This is a schematic structural diagram of the automatic packaging system of the plastic film recycling machine of the first embodiment. Figure 2 is a schematic diagram of the external structure of the collection box in the first embodiment, Figure 3 is a schematic diagram of the connection structure between the driving mechanism and the compression plate in the first embodiment, Figure 4 yes Figure 3 A magnified view of the local structure at A, Figure 5 Schematic diagram of the internal structure of the collection box in the first embodiment.

[0033] The present invention provides an automatic packaging system for a plastic film recycling machine, comprising a mounting frame 101, a shredding cylinder 102, a collection box 103, and a compression packaging unit. The compression packaging unit comprises a compression plate 104, a drive mechanism, a push plate 105, a bracket 106, and a drive cylinder 107. The drive mechanism comprises a limiting shaft, a drive component, a threaded rod 108, and a connecting bearing 109. The drive component comprises a servo motor 110, a gear reduction box 111, and an output gear 112. The limiting shaft comprises a shaft 113 and two limiting rings 114. The above-mentioned solution solves the problem that the existing plastic film recycling machine does not have a packaging unit, cannot package the separated plastic film, and reduces the recycling efficiency of the plastic film. It can be understood that the above-mentioned solution can be used in the structure of agricultural plastic film recycling and processing equipment.

[0034] According to this specific embodiment, the shredding cylinder 102 is installed in the middle of the mounting frame 101, the top of the shredding cylinder 102 is provided with a feed port 115, the bottom of the shredding cylinder 102 is provided with a discharge port 116, and the bottom of the mounting frame 101 is provided with the collecting box 103, and the collecting box 103 is located below the discharge port 116. The plastic film to be recycled is added to the shredding cylinder 102 from the feed port 115, and the shredding mechanism in the shredding cylinder 102 is used to shred the plastic film. The shredded plastic film enters the interior of the collecting box 103 through the discharge port 116. The shredding mechanism in the shredding cylinder 102 here is a structure that has been disclosed in the prior art, so it will not be described in detail in this technical solution.

[0035] Among them, an observation window 117 is provided on the outer wall of the collection box 103, the compression plate 104 is slidingly provided inside the collection box 103, and the driving mechanism is also installed on the outside of the collection box 103, and the output end of the driving mechanism extends to the inside of the collection box 103 and is connected to the compression plate 104, and the collection box 103 away from the driving mechanism is respectively provided with a first opening 118 and a second opening 119 on both sides of the end, the first opening 118 is provided with the pushing plate 105, and the outside of the collection box 103 is further provided with the bracket 106, the bracket 106 is provided with the driving cylinder 107, the output end of the driving cylinder 107 is connected to the pushing plate 105, and the outside of the second opening 119 is provided with a mounting frame 120, and a collection bag 121 is provided at the mounting frame 120. When the collection bag 121 is observed by using the observation window 117 After the plastic film in the collection box 103 initially fills the entire collection box 103, the driving mechanism is started to drive the compression plate 104 to slide inside the collection box 103 to compress the plastic film in the collection box 103. When the compression plate 104 is pushed to the first opening 118, the compression of the plastic film in the collection box 103 is completed, and the driving cylinder 107 is started to push the compressed plastic film into the collection bag 121 installed at the installation frame 120 through the pushing plate 105, thereby completing the packaging of the recycled plastic film. By adopting this technical solution, the separated plastic film can be packaged, thereby improving the recycling efficiency of the plastic film. In addition, the collection bag 121 in this technical solution is a disposable item, and the collection bag 121 is used to store the compressed plastic film to complete the packaging of the recycled plastic film.

[0036] Secondly, limiting protrusions 122 are provided on both sides of the compression plate 104, and limiting grooves 123 are provided on both sides of the interior of the collection box 103. The limiting protrusions 122 are adapted to the limiting grooves 123. Through the setting of the limiting protrusions 122 and the limiting grooves 123, the structure of the compression plate 104 is more stable when it slides inside the collection box 103.

[0037] At the same time, the collection box 103 is rotatably provided with the limiting shaft at one end away from the first opening 118 and the second opening 119, the internal thread of the limiting shaft is connected with the threaded rod 108, and the end of the threaded rod 108 located inside the collection box 103 is connected to the compression plate 104 through the connecting bearing 109, and the outside of the limiting shaft is provided with a transmission gear 124, the servo motor 110 is installed on the outside of the collection box 103, the output end of the servo motor 110 is provided with the gear reduction box 111, the output end of the gear reduction box 111 is provided with the output gear 112, and the output gear 112 is engaged with the transmission gear 124, the servo motor 110 is started, and the output speed is slowed down by the gear reduction box 111, which drives the output gear 112 to rotate. Since the output gear 112 is engaged with the transmission gear 124, the limiting shaft is driven to rotate on the collection box 103. Since the limiting shaft does not move during the rotation, and the internal thread of the limiting shaft is connected to the threaded rod 108, the threaded rod 108 moves while rotating, and then with the cooperation of the connecting bearing 109, the compression plate 104 is driven to slide inside the collection box 103.

[0038] In addition, the internal thread of the shaft body 113 is connected to the threaded rod 108, and the shaft body 113 is rotatably connected to the end wall of the collection box 103. Two limiting rings 114 are provided on the outside of the shaft body 113, and the two limiting rings 114 are respectively located on the inner and outer sides of the end wall of the collection box 103. Through the setting of the two limiting rings 114, the structure of the limiting shaft is more stable when it rotates on the collection box 103. The two limiting rings 114 are provided with annular grooves 125 on the facing sides, and a plurality of balls 126 are provided inside the annular grooves 125. Through the setting of the plurality of balls 126, the limiting shaft rotates more smoothly when it rotates on the collection box 103.

[0039] When the automatic packaging system of the plastic film recycling machine of the present embodiment is used, the plastic film to be recycled is added to the shredding cylinder 102 from the feed port 115, and the shredding mechanism in the shredding cylinder 102 is used to shred the plastic film. The shredded plastic film enters the interior of the collection box 103 through the discharge port 116. When the observation window 117 is used to observe that the plastic film in the collection box 103 has initially filled the entire collection box 103, the driving mechanism is started to drive the compression plate 104 to move the plastic film into the collection box 103. 103 slides internally to compress the plastic film in the collection box 103. When the compression plate 104 is pushed to the first opening 118, the compression of the plastic film in the collection box 103 is completed, and the drive cylinder 107 is started to push the compressed plastic film into the collection bag 121 installed at the installation frame 120 through the push plate 105, thereby completing the packaging of the recycled plastic film. By adopting this technical solution, the separated plastic film can be packaged, thereby improving the recycling efficiency of the plastic film.

[0040] Second embodiment:

[0041] Based on the first embodiment, please refer to Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the external structure of the collection box in the second embodiment. Figure 7 for Figure 6 A magnified view of the local structure at point B.

[0042] The present invention provides an automatic packaging system for a plastic film recycling machine, which also includes a protective shell. The protective shell includes a first half shell 201 and a second half shell 202.

[0043] According to this specific embodiment, the protective shell is provided on the outside of the end of the collection box 103 away from the first opening 118 and the second opening 119, and the protective shell is provided on the outside of the output gear 112 and the transmission gear 124. Through the setting of the protective shell, the output gear 112 and the transmission gear 124 are protected to prevent the external environment from affecting the meshing point of the output gear 112 and the transmission gear 124.

[0044] In which, the first half shell 201 and the second half shell 202 are respectively located on both sides of the output gear 112, and a fixing foot 203 is provided on a side of the first half shell 201 close to the collection box 103, and the fixing foot 203 is connected to the outer wall of the collection box 103. The second half shell 202 is detachably connected to the first half shell 201 and is located on a side of the first half shell 201 away from the fixing foot 203. After the first half shell 201 and the second half shell 202 are respectively placed on both sides of the output gear 112, the fixing foot 203 is fixed on the collection box 103, and the second half shell 202 is fixed on the first half shell 201, thereby completing the installation of the protective shell.

[0045] When using the automatic packaging system of a plastic film recycling machine of this embodiment, after placing the first half shell 201 and the second half shell 202 on both sides of the output gear 112 respectively, the fixing foot 203 is fixed on the collection box 103, and the second half shell 202 is fixed on the first half shell 201, thereby completing the installation of the protective shell. Through the setting of the protective shell, the output gear 112 and the transmission gear 124 are protected to prevent the external environment from affecting the meshing portion of the output gear 112 and the transmission gear 124. A lubricating oil injection pipe 204 is also provided on the protective shell. Through the setting of the lubricating oil injection pipe 204, lubricating oil can be injected into the interior of the protective shell, thereby reducing the wear of the meshing portion of the output gear 112 and the transmission gear 124 and improving the service life of the output gear 112 and the transmission gear 124.

[0046] See also Figure 8 The present invention also provides an automatic packaging method for a plastic film recycling machine, which is applied to the automatic packaging system of the plastic film recycling machine as described above, and includes the following steps:

[0047] S1: Install the collecting bag 121 for collecting the compressed plastic film at the second opening 119;

[0048] S2: adding the plastic film to be recycled into the crushing cylinder 102 from the feed port 115, and crushing the plastic film using the crushing mechanism in the crushing cylinder 102;

[0049] S3: The shredded plastic film enters the collection box 103 through the discharge port 116. When the observation window 117 shows that the plastic film in the collection box 103 has initially filled the entire collection box 103, the driving mechanism is activated to drive the compression plate 104 to slide inside the collection box 103 to compress the plastic film in the collection box 103.

[0050] S4: When the compression plate 104 is pushed to the first opening 118, the compression of the plastic film in the collection box 103 is completed, the driving cylinder 107 is started, and the compressed plastic film is pushed into the collection bag 121 through the pushing plate 105, completing the packaging of the recycled plastic film.

[0051] In this embodiment, first, the collecting bag 121 for collecting the compressed plastic film is installed at the second opening 119, and then the plastic film to be recycled is added to the shredding cylinder 102 from the feeding port 115, and the shredding mechanism in the shredding cylinder 102 is used to shred the plastic film. The shredded plastic film enters the interior of the collection box 103 through the discharge port 116. When the observation window 117 is used to observe that the plastic film in the collection box 103 has initially filled the entire collection box 103, the driving mechanism is started to drive the compression cylinder 102 to shred the plastic film. The shrinking plate 104 slides inside the collection box 103 to compress the plastic film in the collection box 103. Finally, when the compression plate 104 is pushed to the first opening 118, the compression of the plastic film in the collection box 103 is completed, and the driving cylinder 107 is started to push the compressed plastic film into the collection bag 121 installed at the installation frame 120 through the pushing plate 105, thereby completing the packaging of the recycled plastic film. By adopting this technical solution, the separated plastic film can be packaged and the recycling efficiency of the plastic film is improved.

[0052] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. An automatic packaging system for a plastic film recycling machine, comprising a mounting frame, a crushing drum and a collection box, wherein the crushing drum is mounted in the middle of the mounting frame, a feed port is provided at the top of the crushing drum, a discharge port is provided at the bottom of the crushing drum, and the collection box is provided at the bottom of the mounting frame, and the collection box is located below the discharge port, characterized in that: Also includes a compression packaging unit; The compression and packaging unit includes a compression plate, a driving mechanism, a pushing plate, a bracket and a driving cylinder. An observation window is provided on the outer wall of the collection box, the compression plate is slidingly provided inside the collection box, and the driving mechanism is also installed on the outside of the collection box. The output end of the driving mechanism extends to the interior of the collection box and is connected to the compression plate. A first opening and a second opening are respectively provided on both sides of an end of the collection box away from the driving mechanism. The pushing plate is provided at the first opening. The bracket is also provided on the outside of the collection box. The driving cylinder is provided on the bracket, and the output end of the driving cylinder is connected to the pushing plate. An installation frame is provided outside the second opening, and a collection bag is provided at the installation frame.

2. The automatic packaging system of the plastic film recycling machine according to claim 1, characterized in that: Both sides of the compression plate are provided with limiting protrusions, and both sides of the interior of the collection box are provided with limiting grooves, and the limiting protrusions are adapted to the limiting grooves.

3. The automatic packaging system of the plastic film recycling machine according to claim 2, characterized in that: The driving mechanism includes a limiting shaft, a driving component, a threaded rod and a connecting bearing. The limiting shaft is rotatably provided at one end of the collection box away from the first opening and the second opening. The internal thread of the limiting shaft is connected to the threaded rod. The end of the threaded rod located inside the collection box is connected to the compression plate through the connecting bearing. The driving component is also provided on the outside of the end of the collection box close to the limiting shaft. A transmission gear is provided on the outside of the limiting shaft. The output end of the driving component is mechanically transmitted to the transmission gear.

4. The automatic packaging system of the plastic film recycling machine according to claim 3, characterized in that: The driving component includes a servo motor, a gear reduction box and an output gear. The servo motor is installed outside the collection box. The output end of the servo motor is provided with the gear reduction box. The output end of the gear reduction box is provided with the output gear. The output gear is meshed with the transmission gear.

5. The automatic packaging system of the plastic film recycling machine according to claim 4, characterized in that: The limiting rotating shaft includes a shaft body and two limiting rings. The internal thread of the shaft body is connected to the threaded rod. The shaft body is rotatably connected to the end wall of the collection box. Two limiting rings are provided on the outside of the shaft body. The two limiting rings are respectively located on the inner and outer sides of the end wall of the collection box.

6. The automatic packaging system of the plastic film recycling machine according to claim 4, characterized in that: The automatic packaging system of the plastic film recycling machine also includes a protective shell, which is provided on the outside of one end of the collection box away from the first opening and the second opening, and the protective shell is provided on the outside of the output gear and the transmission gear.

7. The automatic packaging system of the plastic film recycling machine according to claim 6, characterized in that: The protective shell includes a first half shell and a second half shell, the first half shell and the second half shell are respectively located on both sides of the output gear, a fixed foot is provided on a side of the first half shell close to the collection box, and the fixed foot is connected to the outer side wall of the collection box, and the second half shell is connected to the first half shell and is located on a side of the first half shell away from the fixed foot.

8. An automatic packaging method for a plastic film recycling machine, applied to the automatic packaging system of the plastic film recycling machine according to claim 1, characterized in that: The steps include: The collecting bag for collecting the compressed plastic film is installed at the second opening; Adding the plastic film to be recycled into the crushing cylinder from the feed inlet, and crushing the plastic film using the crushing mechanism in the crushing cylinder; The shredded plastic film enters the interior of the collection box through the discharge port. When the observation window shows that the plastic film in the collection box has initially filled the entire collection box, the driving mechanism is activated to drive the compression plate to slide inside the collection box to compress the plastic film in the collection box. When the compression plate is pushed to the first opening, the plastic film in the collection box is compressed, the drive cylinder is started, and the compressed plastic film is pushed into the collection bag through the pushing plate, completing the packaging of the recycled plastic film.

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