Automatic book sealing machine

Abstract

The application relates to an automatic book film sealing machine, which comprises a rack, a conveying belt for conveying books, a film conveying device, a film reversing device and a sealing and cutting device arranged on the rack, wherein the film conveying device comprises a feeding assembly, a conveying assembly and a film separating assembly; a buffer assembly is arranged on the rack, the buffer assembly comprises a buffer rod, a connecting piece and a reset piece, the connecting piece is rotationally arranged on the rack and located on the side of the feeding assembly away from the conveying assembly, the buffer rod is arranged on the connecting piece, the length direction of the buffer rod is parallel to and does not coincide with the rotation axis direction of the connecting piece, and the reset piece is arranged between the rack and the connecting piece and drives the reset of the rotating connecting piece. In the application, the film is wound around the buffer rod from the side of the buffer rod away from the feeding assembly, when the film is conveyed, the film drives the movement of the buffer rod, thereby reducing the elongation of the film in the pulling state for a long time during the conveying process, and thereby reducing the possibility of damage to the packaged books during the conveying process.

Description

Technical Field

[0001] This application relates to the field of sealing and packaging, and in particular to an automatic book sealing machine. Background Technology

[0002] Sealing and packaging machines are packaging equipment that automatically packages various products into films, replacing the previous method of manual cutting and packaging, which greatly improves production efficiency and is more in line with the technological development needs of advanced processing and automation.

[0003] After printing, books typically require multiple steps, including packaging, transportation, and distribution, before reaching readers. During these steps, books are susceptible to damage such as moisture or folding, which can affect sales. Therefore, after printing, books need to be packaged and sealed.

[0004] Existing heat-sealing and cutting packaging machines include a frame, on which a conveyor belt is installed, along with a film ejection device, a folding device, a side heat-sealing and cutting device, and a longitudinal heat-sealing and cutting device. The film ejection device unfolds the film on the raw material roller, and the folding device folds the film into a straight cylinder with one side open for the book to be packaged to be pushed in. The side heat-sealing and cutting device cuts and heat-seals the open side of the film. Then, the longitudinal heat-sealing device first heat-seals one longitudinal end of the film, and the conveyor belt stops. When the book enters the designated position between the two layers of film, the conveyor belt starts again to push forward, and the longitudinal heat-sealing device heat-seals the other longitudinal end.

[0005] When the above-mentioned equipment is used to package books, the film is continuously conveyed on the frame. Because the newly replaced rollers are heavy, the film is continuously stretched along its length when it is unwound, which makes the film prone to stretching along its length. After the stretched film is used to package books, it is easy for the books to be damaged during transportation or handling. Summary of the Invention

[0006] In order to reduce the possibility of damage during transportation or handling caused by prolonged stretching of the film, this application provides an automatic book sealing machine.

[0007] The automatic book sealing machine provided in this application adopts the following technical solution:

[0008] An automatic book sealing machine includes a frame, on which are mounted a conveyor belt for conveying books, a film conveying device, a film reversing device, and a sealing and cutting device. The film conveying device drives the film roller to unwind and separate the film. The film reversing device drives the film to switch its direction of rearward conveying parallel to the conveyor belt's conveying direction. The sealing and cutting device heat-seals the film in both its length and width directions. The film conveying device includes a feeding assembly, a conveying assembly, and a film separating assembly distributed along the film conveying direction before film reversal. The feeding assembly places the film roller and drives it to unwind. A buffer assembly is mounted on the frame. The buffer assembly includes a buffer rod, a connector, and a reset component. The connector is rotatably mounted on the frame and located on the side of the feeding assembly opposite to the conveying assembly. The buffer rod is mounted on the connector, and its length direction is parallel to but not coincident with the axis of rotation of the connector. The reset component is located between the frame and the connector and drives the rotated connector to reset.

[0009] By adopting the above technical solution, when the film is conveyed on the frame, the film roller is placed on the feeding assembly. The feeding assembly drives the film roller to unwind. The unwound film passes downward through the buffer rod on the side facing away from the feeding assembly. When the film is used to seal books on the conveyor belt, the film drives the buffer rod to move towards the feeding assembly. When the buffer rod moves, the connecting piece rotates on the frame, so that the film at the buffer rod is reset by the reset piece due to the rotation of the buffer rod. This reduces the film being in a stretched state for a long time. The relaxed film is smoothly conveyed on the frame by the conveying assembly and the double-layer film is dispersed by the film separating assembly. Under the action of the film reversing device, the conveying direction of the dispersed film is the same as the conveyor belt's conveying direction, which facilitates the sealing and cutting device to seal the books. During the conveying process, the film is relaxed by the buffer rod moving upward on the frame under the stretching of the film, which reduces the film being in a stretched state for a long time. This reduces the possibility of the film stretching under prolonged stretching and being damaged during the sealing and conveying of books.

[0010] Optionally, the connecting component includes a linkage rod, a connecting rod, and a connecting block. The linkage rod is rotatably mounted on the frame. There are two connecting rods, which are distributed at both ends of the linkage rod along its length. One end of the connecting rod is fixed to the linkage rod, and the other end extends downward. The buffer rod is located at the lower end of the two connecting rods. One end of the connecting block is located on the linkage rod, and the other end is connected to the reset component.

[0011] By adopting the above technical solution, when the buffer rod moves to the feeding assembly along with the film conveyor, the connecting rod rotates relative to the linkage rod, thereby driving the linkage rod to rotate on the frame. The rotating linkage rod drives the end of the connecting block away from the linkage rod to rotate, which in turn drives the reset component to stretch between the frame and the connecting block. When the buffer rod moves to the closest point to the feeding assembly, under the reset action of the reset component, the connecting block rotates toward the reset component, thereby driving the linkage rod, connecting rod and buffer rod to reset, so that the buffer rod can continuously buffer the film.

[0012] Optionally, the reset component includes a positioning post and a reset spring. The positioning post is disposed on the surface of the frame on the side opposite to the linkage rod. One end of the reset spring is disposed on the positioning post, and the other end is disposed on the end of the connecting block away from the linkage rod. The reset spring drives the connecting block, the linkage rod, and the connecting rod to reset, thereby driving the buffer rod to reset.

[0013] By adopting the above technical solution, when the buffer rod moves toward the feeding assembly, the end of the connecting block away from the linkage rod gradually moves away from the positioning post. The reset spring is stretched between the positioning post and the connecting block. When the connecting block stops rotating, the reset spring drives the connecting block to rotate in the opposite direction to reset, thereby driving the buffer rod away from the feeding assembly on the frame, which facilitates the buffer rod to buffer the film in the future.

[0014] Optionally, the conveying assembly includes a traction roller, a guide roller, and an abutment. The traction roller and the guide roller are rotatably mounted on the frame, with the guide roller located below the traction roller. The frame is provided with a rotating component for driving the traction roller to rotate. The frame is also provided with a sliding rod, and the abutment is mounted on the sliding rod. The abutment faces the traction roller and abuts the film against the traction roller.

[0015] By adopting the above technical solution, when the film is conveyed on the frame, the rotating component is activated, which drives the traction roller to rotate on the frame, thereby driving the film to be conveyed between the guide roller and the traction roller. The film moves upward from the guide roller towards the side opposite to the feeding component and passes through the traction roller towards the feeding component. The guide roller increases the contact range between the film and the traction roller, and the abutting component abuts the film against the traction roller, thereby reducing the possibility of the film detaching from the traction roller and affecting the film conveying effect.

[0016] Optionally, the abutment includes a collar, a fixing rod, and abutment block. The collar is slidably sleeved on the sliding rod, the fixing rod is disposed on the collar and used to fix the collar, and one end of the abutment block is disposed on the collar and the other end extends toward the traction roller and abuts the film against the traction roller.

[0017] By adopting the above technical solution, the collar is sleeved on the slide bar, and the abutment block abuts the film against the upper traction roller, reducing the possibility of the film detaching from the traction roller. The position of the collar on the slide bar can be adjusted by the fixing rod, which facilitates the adjustment of the collar position on the slide bar, thereby reducing the possibility of reduced film conveying effect due to the abutment block abutment problem.

[0018] Optionally, the sealing and cutting device includes a first sealing and cutting component arranged along the width direction of the conveyor belt and a second sealing and cutting component arranged along the length direction of the conveyor belt. The first sealing and cutting component includes a heat sealing knife, an abutment plate, and a lifting component. The heat sealing knife and the abutment plate are both arranged on the frame and distributed on the upper and lower sides of the conveyor belt. The lifting component is arranged on the frame and drives the heat sealing knife to move closer to or away from the abutment plate on the frame.

[0019] By adopting the above technical solution, when the film is not used to wrap the book, the second sealing and cutting component heats and cuts the film in the length direction of the film. The lifting component drives the heat sealing knife to seal the ends of the film and the book in the width direction of the film. When the heat sealing knife heats and seals the film downwards, the heat sealing knife abuts against the abutment plate, which facilitates the heat sealing knife to heat and cut the film.

[0020] Optionally, an installation block is provided between the lifting component and the heat sealing knife, and a heat sealing buffer assembly is provided between the installation block and the heat sealing knife. The heat sealing buffer assembly includes a telescopic rod and a buffer spring. One end of the telescopic rod is provided on the installation block and the other end is provided on the heat sealing knife. The buffer spring is provided between the installation block and the heat sealing knife and is sleeved on the telescopic rod.

[0021] By adopting the above technical solution, the lifting component drives the heat sealing knife to slide downward on the frame and abut against the plate. When abutting, the buffer spring contracts between the heat sealing knife and the mounting block, and the telescopic rod shortens between the mounting block and the heat sealing knife, reducing the impact force between the heat sealing knife and the abutting plate, thereby reducing the possibility of damage to the heat sealing knife.

[0022] Optionally, the second sealing and cutting assembly includes an adjusting member, a pressing member distributed along the length of the conveyor belt for pressing the film, and a cutting member for heat sealing and trimming the excess edge of the film. The pressing member includes a mounting rod and a pressing roller. One end of the mounting rod is disposed on the frame and the other end extends along the width of the conveyor belt. The pressing roller is rotatably disposed on the mounting rod. There are two mounting rods and two pressing rollers, and the film passes between the two pressing rollers. The adjusting member is disposed on the frame and is used to adjust the height of the cutting member.

[0023] By adopting the above technical solution, when the excess edge in the length direction of the film is heat-sealed and cut, the pressing component presses the two layers of film together, and then the cutting component heat-seales and cuts off the excess edge in the length direction of the film, thereby heat-sealing the film in the length direction and encapsulating the book in the film, reducing the possibility of damage during the transport of the book.

[0024] Optionally, the edge-cutting component includes a sealing and cutting knife and an abutment block located directly below the sealing and cutting knife. The abutment block is mounted on the frame, and the sealing and cutting knife is mounted on an adjusting component. The adjusting component moves the sealing and cutting knife closer to or further away from the abutment block on the frame. The sealing and cutting knife is used for heat-sealing and trimming the excess edge of the film.

[0025] By adopting the above technical solution, when the sealing and cutting blade heat-seals and cuts the film along its length, the sealing and cutting blade abuts against the abutment block. During the conveying process, the film comes into contact with the blade edge of the sealing and cutting blade, so that the film is heat-bonded together and cut during the conveying process, thereby completing the book packaging.

[0026] Optionally, the adjusting component includes an adjusting rod, a sliding block, and a drive motor. The sliding block is slidably mounted on the frame in a vertical direction. The sealing and cutting blade is mounted on the lower surface of the sliding block. The adjusting rod is rotatably mounted on the frame and threadedly connected to the sliding block. The drive motor is mounted on the frame and is drively connected to the adjusting rod.

[0027] By adopting the above technical solution, when the height of the sealing and cutting blade is adjusted by the adjusting component, the drive motor is started, which drives the adjusting rod to rotate on the frame, thereby driving the sealing and cutting blade to slide vertically on the frame to adjust the height of the sealing and cutting blade, reducing the distance between the sealing and cutting blade and the film, which would affect the heat sealing and cutting effect of the film.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. Install a buffer assembly on the frame. Pass the unwound film upwards from the side of the buffer rod that is away from the feeding assembly. When the film is conveyed, it drives the buffer rod to move towards the feeding assembly on the frame, thereby reducing the possibility of the film stretching due to being in a stretched state for a long time during the conveying process, which may lead to the film being damaged during the conveying of the packaged book.

[0030] 2. After the buffer rod moves with the film, the return spring drives the connecting block, linkage rod and connecting rod to return to the frame, thereby driving the buffer rod to return to the frame, which facilitates the subsequent buffering of the film;

[0031] 3. A heat sealing buffer assembly is installed between the heat sealing blade and the mounting block to reduce the possibility of damage when the lifting component drives the heat sealing blade to collide with the abutment plate. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0033] Figure 2 This is a schematic diagram of the installation of the feeding component and the buffer component in the embodiments of this application.

[0034] Figure 3 This is a schematic diagram of the installation of the conveying component and the film reversing device in the embodiments of this application.

[0035] Figure 4 This is a schematic diagram of the structure of the conveying component in the embodiments of this application.

[0036] Figure 5 This is a schematic diagram of the installation of the first sealing and cutting component in an embodiment of this application.

[0037] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0038] Figure 7 This is a schematic diagram of the installation of the second sealing and cutting component in an embodiment of this application.

[0039] Explanation of reference numerals in the attached drawings: 1. Frame; 21. First conveyor belt; 22. Second conveyor belt; 3. Film conveying device; 31. Feeding assembly; 311. Feeding drive component; 312. Drive roller; 313. Driven roller; 314. Stop bar; 32. Conveying assembly; 321. Traction roller; 322. Guide roller; 323. Abutment component; 324. Slide bar; 3231. Collar; 3232. Fixing rod; 3233. Abutment block; 33. Film separating assembly; 331. Film separating rod; 332. Rolling ball; 4. Sealing and cutting device; 41. First sealing and cutting assembly; 411. Heat sealing knife; 412. Abutment plate; 413. Lifting component; 414. Mounting block; 42. Second sealing and cutting assembly; 421. Adjusting component; 4211. Drive motor; 4 212. Adjusting rod; 4213. Sliding block; 422. Pressing component; 4221. Mounting rod; 4222. Pressing roller; 423. Edge trimming component; 4231. Sealing and cutting knife; 4232. Abutting block; 43. Heat sealing buffer assembly; 431. Telescopic rod; 432. Buffer spring; 5. Film reversing device; 51. Upper reversing assembly; 511. Upper mounting frame; 512. Upper reversing plate; 52. Lower reversing assembly; 53. Height adjustment assembly; 531. Third motor; 532. Adjusting threaded rod; 533. Sliding rod; 6. Buffer assembly; 61. Buffer rod; 62. Connecting component; 621. Linkage rod; 622. Connecting rod; 623. Connecting block; 63. Reset component; 631. Positioning post; 632. Reset spring. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0041] This application discloses an automatic book sealing machine. (Refer to...) Figure 1It includes a frame 1, on which a conveyor belt for transporting books, a film conveying device 3, a film reversing device 5, and a sealing and cutting device 4 are installed.

[0042] The conveyor belt includes a first conveyor belt 21 and a second conveyor belt 22. The first conveyor belt 21 and the second conveyor belt 22 are distributed along the book conveying direction. The upper surface of the second conveyor belt 22 is lower than the upper surface of the first conveyor belt 21. The film reversing device 5 is located on the frame at one end of the first conveyor belt 21 near the second conveyor belt 22.

[0043] Reference Figure 1 and Figure 2 The film conveying device 3 includes a feeding assembly 31, a conveying assembly 32, and a film separating assembly 33 distributed along the film conveying direction before film switching. The conveying direction before film switching is perpendicular to the length direction of the first conveyor belt 21. The feeding assembly 31 includes a drive roller 312, a driven roller 313, and a feeding drive unit 311. Both the drive roller 312 and the driven roller 313 are rotatably mounted on the frame 1. The feeding drive unit 311 includes a first motor, which is mounted on the frame 1. The first motor drives the drive roller 312 to rotate on the frame 1, thereby driving the film roller to rotate between the drive roller 312 and the driven roller 313, and thus driving the film on the film roller to unwind.

[0044] A buffer assembly 6 is installed on the frame 1. The buffer assembly 6 includes a buffer rod 61, a connector 62, and a reset component 63.

[0045] Reference Figure 2 The connector 62 includes a linkage rod 621, a connecting rod 622, and a connecting block 623. The linkage rod 621 is rotatably mounted on the frame 1. There are two connecting rods 622, which are distributed at both ends of the linkage rod 621. One end of the connecting rod 622 is fixedly mounted on the linkage rod 621, and the other end extends downward. The buffer rod 61 is mounted on the two connecting rods 622. After unwinding, the film passes down the buffer rod 61 from the side of the buffer rod 61 that is away from the drive roller 312. During the film conveying process, the buffer rod 61 is stretched by the film. The connecting rod 622 drives the linkage rod 621 to rotate on the frame 1, causing the buffer rod 61 to move towards the drive roller 312. When the buffer rod 61 moves, the film relaxes into a free state, thereby reducing the film stretching time and reducing the possibility of the film stretching due to prolonged stretching, which could lead to damage during subsequent conveying.

[0046] One end of the connecting block 623 is fixedly installed on the linkage rod 621, and the other end extends radially along the linkage rod 621. The reset component 63 includes a positioning post 631 and a reset spring 632. The positioning post 631 is installed on the frame 1. One end of the reset spring 632 is sleeved on the positioning post 631, and the other end is installed on the end of the connecting block 623 away from the linkage rod 621. When the buffer rod 61 and the connecting rod 622 drive the linkage rod 621 to rotate, the end of the connecting block 623 away from the linkage rod 621 moves away from the positioning post 631, causing the reset spring 632 to be stretched between the positioning post 631 and the connecting block 623. The stretched reset spring 632 drives the connecting block 623 to rotate toward the positioning post 631, thereby driving the buffer rod 61 and the connecting block 623 to reset.

[0047] A stop bar 314 is installed on the frame 1. The stop bar 314 is on the side of the buffer bar 61 that is away from the drive roller 312. When the buffer bar 61 rotates with the connecting rod 622, the stop bar 314 blocks the connecting rod 622, limiting the position of the buffer bar 61 when it is away from the drive roller 312, thereby reducing the possibility of the film stretching on the buffer bar 61 due to the stretching of the buffer bar 61 too far away from the drive roller 312.

[0048] Reference Figure 1 and Figure 3 The conveying assembly 32 includes a traction roller 321, a guide roller 322, and an abutment member 323. The traction roller 321 is rotatably mounted on the frame 1. A rotating member that drives the traction roller 321 to rotate is installed between the traction roller 321 and the frame 1. The rotating member includes a second motor, and the output shaft of the second motor is rotatably connected to the traction roller 321. The guide roller 322 is rotatably mounted on the frame 1 and is located below the traction roller 321. The film moves upward from the side of the guide roller 322 away from the drive roller 312 and then around the side of the traction roller 321 toward the drive roller 312. The film extends upward at an angle toward the drive roller 312 between the guide roller 322 and the traction roller 321, increasing the contact area between the film and the traction roller 321 and improving the conveying stability of the film at the traction roller 321.

[0049] A slide bar 324 is installed on the frame 1. The abutment 323 includes a collar 3231, a fixing rod 3232, and abutment block 3233. The collar 3231 is slidably sleeved on the slide bar 324. The fixing rod 3232 is threadedly connected to the collar 3231 and fixed to the collar 3231. The end of the fixing rod 3232 abuts against the slide bar 324. One end of the abutment block 3233 is installed on the collar 3231, and the other end extends toward the traction roller 321 and abuts the film against the traction roller 321, reducing the possibility of the film detaching from the traction roller 321 when it is conveyed with the traction roller 321.

[0050] Reference Figure 3 and Figure 4The film separating assembly 33 includes a film separating rod 331 and a rolling ball 332. The film separating rod 331 is mounted on the frame 1 and separates the double-layer films that are adhered together. The rolling ball 332 is installed at the end of the film separating rod 331 that contacts the film. When the film and the film separating rod 331 are transported relative to each other, the rolling ball 332 rolls at the end of the film separating rod 331, reducing the possibility of the film being torn at the end of the film separating rod 331 during transport.

[0051] Reference Figure 1 and Figure 3 The thin film reversing device 5 includes an upper reversing assembly 51, a lower reversing assembly 52, and a height adjustment assembly 53.

[0052] Reference Figure 3 The upper reversing assembly 51 is located above the first conveyor belt 21 and at one end of the first conveyor belt 21 near the second conveyor belt 22. The upper reversing assembly 51 includes an upper reversing plate 512 and an upper mounting frame 511. The upper mounting frame 511 is slidably mounted on the frame 1 along the height direction. The upper reversing plate 512 is a triangular plate. One side of the upper reversing plate 512 is mounted on the upper mounting frame 511. After the film passes around the side of the upper reversing plate 512 away from the upper mounting frame 511, the film is conveyed along the length direction of the first conveyor belt 21.

[0053] The lower reversing assembly 52 includes a lower reversing plate and a lower mounting frame. The lower mounting frame is mounted on the frame 1 and is located below the first conveyor belt 21. The lower reversing plate is a triangular plate, and one side of the lower reversing plate is mounted on the lower mounting frame. The lower reversing plate and the lower mounting frame are distributed along the length of the first conveyor belt 21. The film located on the lower side passes around the lower reversing plate and is conveyed along the length of the first conveyor belt 21. The fold of the upper and lower films after reversal is located on the side of the first conveyor belt 21 facing the film separating rod 331, and the two films after reversal are located on the upper and lower sides of the first conveyor belt 21, respectively.

[0054] Reference Figure 3 and Figure 4The height adjustment assembly 53 includes an adjusting threaded rod 532 and a third motor 531. The adjusting threaded rod 532 is rotatably mounted on the frame 1 and is threadedly connected to the upper mounting bracket 511. A sliding rod 533 parallel to the adjusting threaded rod 532 is mounted on the frame 1, and the upper mounting bracket 511 is slidably mounted on the sliding rod 533. The third motor 531 is mounted on the frame 1, and the output shaft of the third motor 531 is coaxially mounted with the adjusting threaded rod 532. When the thickness of the book to be packaged cannot be well conveyed between the upper reversing plate 512 and the first conveyor belt 21, the third motor 531 is started, driving the adjusting threaded rod 532 to rotate on the frame 1, thereby driving the upper mounting bracket 511 to slide upward on the sliding rod 533, increasing the distance between the upper reversing plate 512 and the first conveyor belt 21, making it easier for thicker books to be conveyed between the first conveyor belt 21 and the upper reversing plate 512.

[0055] Reference Figure 1 The sealing and cutting device 4 includes a first sealing and cutting component 41 installed along the width direction of the first conveyor belt 21 and a second sealing and cutting component 42 installed along the length direction of the first conveyor belt 21.

[0056] Reference Figure 5 The first sealing and cutting assembly 41 is located between the first conveyor belt 21 and the second conveyor belt 22. The first sealing and cutting assembly 41 includes a heat sealing knife 411, an abutment plate 412, and a lifting component 413. A mounting block 414 that slides vertically is installed on the frame 1. The heat sealing knife 411 is installed on the lower surface of the mounting block 414 through the heat sealing buffer assembly 43. The abutment plate 412 is installed on the frame 1. The heat sealing knife 411 and the abutment plate 412 are distributed on the upper and lower sides of the first conveyor belt 21. The heat sealing knife 411 is located on the first conveyor belt. Above 21, the lifting component 413 includes a lifting cylinder, which is mounted on the frame 1. The lifting cylinder drives the heat sealing knife 411 to approach or move away from the abutment plate 412 on the frame 1 via the mounting block 414. When the lifting cylinder drives the heat sealing knife 411 to approach the abutment plate 412 on the frame 1, the heat sealing knife 411 abuts the two layers of film against the abutment plate 412. The two layers of film are adhered together by the heat sealing knife 411, thereby heat-sealing the film together in the width direction of the first conveyor belt 21, which facilitates the packaging of books.

[0057] Reference Figure 5 and Figure 6The heat-sealing buffer assembly 43 includes a telescopic rod 431 and a buffer spring 432. The upper end of the telescopic rod 431 is installed on the lower surface of the mounting block 414, and the lower end is installed on the upper surface of the heat-sealing blade 411. The buffer spring 432 is installed between the mounting block 414 and the heat-sealing blade 411. The buffer spring 432 is sleeved on the outside of the telescopic rod 431. When the heat-sealing blade 411 is pressed against the abutment plate 412, the buffer spring 432 contracts between the mounting block 414 and the heat-sealing blade 411, and the telescopic rod 431 shortens, thereby reducing the possibility of damage to the heat-sealing blade 411 and the abutment plate 412 due to impact.

[0058] Reference Figure 1 and Figure 7 The second sealing and cutting assembly 42 includes an adjusting member 421, a pressing member 422 distributed along the length of the second conveyor belt 22 for pressing the film, and a cutting member 423 for heat sealing and trimming the excess edges of the film. The pressing member 422 includes a mounting rod 4221 and a pressing roller 4222. Two mounting rods 4221 and two pressing rollers 4222 are installed. One end of the mounting rod 4221 is mounted on the frame 1, and the other end extends toward the second conveyor belt 22 along the width direction of the second conveyor belt 22. The pressing roller 4222 is rotatably mounted on the mounting rod 4221. The two layers of film pass between the two pressing rollers 4222, so that the pressing roller 4222 presses the two layers of film for packaging the book together, which facilitates the subsequent cutting of the film.

[0059] Reference Figure 7 The adjusting component 421 includes an adjusting rod 4212, a sliding block 4213, and a drive motor 4211. The sliding block 4213 is slidably mounted on the frame 1 and slides vertically on the frame. The adjusting rod 4212 is rotatably mounted on the frame 1 and is a threaded rod. The adjusting rod 4212 is threadedly connected to the sliding block 4213. The drive motor 4211 is mounted on the frame 1, and the output shaft of the drive motor 4211 is coaxially mounted with the adjusting rod 4212. The trimming component 423 includes a sealing cutter 4231 and an abutment block 4. 232, the sealing and cutting blade 4231 is installed on the lower surface of the sliding block 4213, and the abutment block 4232 is located directly below the sealing and cutting blade 4231. When the book is sealed, the film passes between the sealing and cutting blade 4231 and the abutment block 4232. The drive motor 4211 drives the adjusting rod 4212 to rotate, thereby driving the sealing and cutting blade 4231 downward and abutting the film against the abutment block 4232. Under the heat sealing and cutting of the sealing and cutting blade 4231, the film seals the book, and the excess edge of the film in the length direction of the second conveyor belt 22 is cut and heat sealed, thereby completely sealing the book.

[0060] The implementation principle of an automatic book sealing machine according to an embodiment of this application is as follows:

[0061] When the conveyor is packaged, the first motor is driven to rotate the active roller 312, so that the film roller rotates between the active roller 312 and the driven roller 313 to unwind.

[0062] After unwinding, the film passes down the buffer rod 61 from the side facing away from the drive roller 312. During film transport, the film drives the buffer rod 61 to move in the film transport direction. The buffer rod 61 drives the linkage rod 621 to rotate through the connecting rod 622, so that the film is relaxed and in a free state between the drive roller 312 and the buffer rod 61. This reduces the possibility of the film being stretched and damaged after stretching due to being under tension for a long time between the buffer rod 61 and the drive roller 312.

[0063] The buffer rod 61, which moves toward the drive roller 312, is pulled by the return spring 632 on the connecting block 623, causing the linkage rod 621 to rotate and reset. This allows the buffer rod 61 to continuously buffer the stretching of the film during the book packaging process, reducing the possibility of the film stretching under prolonged stretching.

[0064] The second motor drives the traction roller 321 to rotate, which facilitates the upward conveying of the film from the buffer rod 61. The winding of the guide roller 322 and the abutment of the block 3233 increase the contact area between the film and the traction roller 321, reducing the possibility of the film detaching from the traction roller 321 during the conveying process and thus reducing the conveying effect.

[0065] During the transport process, the film is separated into two layers by the film separating rod 331, which facilitates the subsequent encapsulation of the film into books.

[0066] The film conveyed to the first conveyor belt 21 is connected to the upper reversing plate 512 and the lower reversing plate so that the conveying direction of the film is the same as that of the first conveyor belt 21. The double-layer film is distributed on the upper and lower sides of the first conveyor belt 21. The book is conveyed on the first conveyor belt 21 between the upper and lower layers of the film. The book is conveyed to the second conveyor belt. The lifting cylinder drives the mounting block 414 and the heat sealing knife 411 to press the film against the abutment block 4232, thereby heat sealing the film in the width direction of the second conveyor belt 22.

[0067] When the book is conveyed onto the second conveyor belt 22, the pressing roller 4222 presses the remaining edges of the two layers of film together, and then places the remaining film edges between the abutment block 4232 and the sealing and cutting knife 4231. The sealing and cutting knife 4231 heat-seals and cuts the remaining film edges along the length of the second conveyor belt 22, thereby completing the book packaging.

[0068] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic book sealing machine, comprising a frame (1), wherein the frame (1) is provided with a conveyor belt for conveying books, a film conveying device (3), a film reversing device (5), and a sealing and cutting device (4), wherein the film conveying device (3) is used to drive the film roller to unwind and separate the film, the film reversing device (5) is used to drive the film to reverse direction, wherein after reversal, the film conveying direction is parallel to the conveyor belt conveying direction, and the sealing and cutting device (4) is used to heat seal the film in the length and width directions, characterized in that: The film conveying device (3) includes a feeding assembly (31), a conveying assembly (32), and a film separating assembly (33) distributed along the film conveying direction before film switching. The feeding assembly (31) is used to place the film roller and drive the film roller to unwind. A buffer assembly (6) is provided on the frame (1). The buffer assembly (6) includes a buffer rod (61), a connector (62), and a reset member (63). The connector (62) is rotatably disposed on the frame (1) and located on the side of the feeding assembly (31) facing away from the conveying assembly (32). The buffer rod (61) is disposed on the connector (62). The length direction of the buffer rod (61) is parallel to and does not coincide with the rotation axis direction of the connector (62). The reset member (63) is disposed between the frame (1) and the connector (62) and drives the rotated connector (62) to reset. The film separating assembly (33) includes a film separating rod (331) and a rolling ball (332). The connector (62) includes a linkage rod (621), a connecting rod (622), and a connecting block (623). The linkage rod (621) is rotatably mounted on the frame (1). There are two connecting rods (622), which are distributed at both ends of the linkage rod (622) along the length of the linkage rod (621). One end of the connecting rod (622) is fixedly mounted on the linkage rod (621), and the other end extends downward. The buffer rod (61) is located at the lower end of the two connecting rods (622). One end of the connecting block (623) is mounted on the linkage rod (621), and the other end is connected to the reset component (63). The reset component (63) includes a positioning post (631) and a reset spring (632). The positioning post (631) is disposed on the surface of the frame (1) on the side opposite to the linkage rod (621). One end of the reset spring (632) is disposed on the positioning post (631), and the other end is disposed on the end of the connecting block (623) away from the linkage rod (621). When the reset spring (632) drives the connecting block (623) and the linkage rod (621) to rotate and reset, the connecting rod (622) drives the buffer rod (61) to reset.

2. The automatic book sealing machine according to claim 1, characterized in that: The conveying assembly (32) includes a traction roller (321), a guide roller (322), and an abutment (323). The traction roller (321) and the guide roller (322) are rotatably mounted on the frame (1), with the guide roller (322) located below the traction roller (321). The frame (1) is provided with a rotating component for driving the traction roller (321) to rotate. The frame (1) is provided with a slide bar (324), and the abutment (323) is mounted on the slide bar (324). The abutment (323) faces the traction roller (321) and abuts the film against the traction roller (321).

3. The automatic book sealing machine according to claim 2, characterized in that: The abutment (323) includes a collar (3231), a fixing rod (3232), and an abutment (3233). The collar (3231) is slidably sleeved on the slide rod (324). The fixing rod (3232) is disposed on the collar (3231) and used to fix the collar (3231). One end of the abutment (3233) is disposed on the collar (3231), and the other end extends toward the traction roller (321) and abuts the film against the traction roller (321).

4. The automatic book sealing machine according to claim 1, characterized in that: The sealing and cutting device (4) includes a first sealing and cutting component (41) arranged along the width direction of the conveyor belt and a second sealing and cutting component (42) arranged along the length direction of the conveyor belt. The first sealing and cutting component (41) includes a heat sealing knife (411), an abutment plate (412) and a lifting component (413). The heat sealing knife (411) and the abutment plate (412) are both arranged on the frame (1) and distributed on the upper and lower sides of the conveyor belt. The lifting component (413) is arranged on the frame (1) and drives the heat sealing knife (411) to move closer to or away from the abutment plate (412) on the frame (1).

5. The automatic book sealing machine according to claim 4, characterized in that: An installation block (414) is provided between the lifting component (413) and the heat sealing knife (411). A heat sealing buffer assembly (43) is provided between the installation block (414) and the heat sealing knife (411). The heat sealing buffer assembly (43) includes a telescopic rod (431) and a buffer spring (432). One end of the telescopic rod (431) is provided on the installation block (414) and the other end is provided on the heat sealing knife (411). The buffer spring (432) is provided between the installation block (414) and the heat sealing knife (411) and is sleeved on the telescopic rod (431).

6. The automatic book sealing machine according to claim 4, characterized in that: The second sealing and cutting assembly (42) includes an adjusting member (421), a pressing member (422) distributed along the length of the conveyor belt for pressing the film, and a cutting member (423) for heat sealing and cutting the excess edge of the film. The pressing member (422) includes a mounting rod (4221) and a pressing roller (4222). One end of the mounting rod (4221) is set on the frame (1), and the other end extends along the width of the conveyor belt. The pressing roller (4222) is rotatably set on the mounting rod (4221). There are two mounting rods (4221) and two pressing rollers (4222), and the film passes between the two pressing rollers (4222). The adjusting member (421) is set on the frame (1) and is used to adjust the height of the cutting member (423).

7. An automatic book sealing machine according to claim 6, characterized in that: The edge trimming component (423) includes a sealing and cutting blade (4231) and an abutment block (4232) located directly below the sealing and cutting blade (4231). The abutment block (4232) is mounted on the frame (1), and the sealing and cutting blade (4231) is mounted on an adjusting component (421). The adjusting component (421) drives the sealing and cutting blade (4231) to move closer to or further away from the abutment block (4232) on the frame (1). The sealing and cutting blade (4231) is used for heat sealing and trimming the excess edge of the film.

8. An automatic book sealing machine according to claim 7, characterized in that: The adjusting component (421) includes an adjusting rod (4212), a sliding block (4213), and a drive motor (4211). The sliding block (4213) is slidably mounted on the frame (1) in the vertical direction. The sealing and cutting blade (4231) is mounted on the lower surface of the sliding block (4213). The adjusting rod (4212) is rotatably mounted on the frame (1). The adjusting rod (4212) is threadedly connected to the sliding block (4213). The drive motor (4211) is mounted on the frame (1) and is drively connected to the adjusting rod (4212).

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