Sofa packaging device

Abstract

The application discloses a sofa packaging device and belongs to the packaging equipment, which comprises a conveying device, a feeding device, a left moving assembly, a right moving assembly and a cladding assembly. The feeding device comprises a feeding roller set and a slitting end, and the feeding roller set is used for unwinding a lower packaging film to a conveying surface of the conveying device. The left moving assembly comprises a first sewing end, a first pressing end and a horizontal pushing part. The right moving assembly comprises a second sewing end, a second pressing end and an unwinding part, wherein the unwinding part comprises a forward-reverse motor and a winding roller, the forward-reverse motor is used for driving the winding roller to rotate forward or reverse, and the winding roller is used for unwinding and winding an upper packaging film. The cladding assembly is arranged above the conveying device, and is used for stretching the upper packaging film unwound by the unwinding part to above the conveying device. Through cooperation of the horizontal pushing part and the unwinding part, the upper packaging film and the lower packaging film can be tightly attached to the sofa, so that the packaging of the packaging bag and the sofa is more compact.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and in particular to a sofa packaging device. Background Technology

[0002] To prevent sofas and other furniture from being scratched or damaged during transportation, they often need to be packaged before shipping. Traditional packaging is manual, requiring multiple workers to lift the sofa, wrap it with packaging film, and then seal the film to protect the furniture.

[0003] However, the following problems are currently common in the packaging of sofas and other furniture: the packaging film does not wrap the sofas and other furniture tightly, which makes the transportation of sofas and other furniture inconvenient and the packaging efficiency is low. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] This invention provides a sofa packaging device, comprising: a conveying device for conveying a sofa from back to front; a winding device located at the rear end of the conveying device, the winding device including a roller assembly and a slitting end, the roller assembly for unwinding a lower packaging film onto the conveying surface of the conveying device, the slitting end being movable left and right to cut the lower packaging film; and a left motion assembly located to the left of the conveying device, the left motion assembly including a first sewing end movable in a front-to-back direction, a first pressing end movable towards or away from the conveying device, and a lateral pushing component, the lateral pushing component including a lateral drive and a [missing information - likely a specific component or mechanism]. A push rod extending forward and backward is driven by a lateral drive to move the push rod left and right; a right motion assembly located to the right of the conveyor includes a second sewing end that moves in the forward and backward direction, a second pressing end that can move closer to or further away from the conveyor, and an unwinding component. The unwinding component includes a forward and reverse motor and a take-up roller. The forward and reverse motor is used to drive the take-up roller to rotate forward or reverse, and the take-up roller is used to unwind and take up the upper packaging film; a covering assembly is mounted above the conveyor and is used to stretch the upper packaging film unwound by the unwinding component to the top of the conveyor.

[0006] According to an embodiment of the present invention, a sofa packaging device has at least the following advantages: The feeding device is located behind the conveying device. Under the action of the feeding roller group, the lower packaging film can be unwound onto the conveying surface of the conveying device. In conjunction with the loading of the sofa, the lower packaging film can be placed below the sofa, and the sofa and the lower packaging film are conveyed forward together. The left motion component and the right motion component are respectively located to the left and right of the conveying device. The right motion component includes an unwinding component for unwinding and rewinding the upper packaging film. The covering component is used to stretch the unwound upper packaging film above the conveying device, so that the sofa is placed between the upper and lower packaging films. The first pressing end of the left motion component operates, moving closer to the conveying device, thereby causing the left edge of the upper packaging film and the left edge of the lower packaging film to adhere. The first sewing end can move in the front-back direction, thereby achieving sewing of the left edge of the upper packaging film and the left edge of the lower packaging film. Then, the first pressing end moves away from the conveying device, while the second pressing end moves closer to the conveying device. The second pressing end can achieve sewing of the sofa. The right end of the packaging film is limited, ensuring that the right edge of the upper packaging film aligns with the right edge of the lower packaging film. The lateral push mechanism operates, and the lateral drive propels the push rod to the right. Simultaneously, the winding roller winds up the upper packaging film, bringing the second pressing end of the sofa closer together. This ensures that the left ends of the upper and lower packaging films are tightly sealed to the sofa, reducing the gap between the packaging bag and the left end of the sofa. Moving the sofa towards the second pressing end also reduces the gap between the packaging bag and the right end of the sofa. The second sewing end then sews the right edges of the upper and lower packaging films, sealing both ends. This improves packaging efficiency and reduces worker workload. Through the cooperation of the lateral push and unwinding mechanisms, this sofa packaging device ensures that the upper and lower packaging films are tightly fitted to the sofa, resulting in a more compact packaging. This reduces the space occupied by the packaged sofa, facilitates transportation, and lowers the risk of damage during transport.

[0007] According to some embodiments of the present invention, the present invention further includes a first telescopic drive, a first lifting drive, and a suspension rod extending forward and backward. The first lifting drive is used to drive the suspension rod to move up and down, and the first telescopic drive is used to drive the suspension rod to move forward and backward. The suspension rod can move between the left motion component and the right motion component and is located below the covering component.

[0008] Considering that some sofas have corners, the edges of the cut packaging film are not flush after being tightly attached to the sofa's contour, which is not conducive to the clamping and stretching of the packaging film in the next cycle. The sofa packaging device also includes a first telescopic drive, a first lifting drive, and a suspension rod. The first lifting drive can be used to drive the suspension rod to move up and down to adjust the height position of the suspension rod, and the first telescopic drive can be used to drive the suspension rod to move back and forth so that the suspension rod can be positioned between the left and right motion components. When the covering component stretches the unwound upper packaging film, the suspension rod can compensate for the cavity at the corner of the sofa, so that the upper and lower packaging films form a wrapping cavity with the same front and back volume. This makes the edges of the cut upper packaging film more flush, so that the covering component can clamp and stretch the upper packaging film repeatedly, which helps to improve the efficiency of sofa packaging.

[0009] According to some embodiments of the present invention, the covering component includes a horizontally extending crossbeam, a movable mechanism, and grippers. The left and right ends of the crossbeam are connected to a left moving component and a right moving component, respectively. The movable mechanism is connected to the crossbeam and is driven by the grippers to drive the grippers to move up and down and left and right.

[0010] Specifically, the covering assembly includes a horizontally extending beam that supports the movable mechanism and grippers. The left and right ends of the beam are connected to the left and right moving components, respectively, allowing the upper packaging film to cover the top of the conveyor. The movable mechanism is connected to the beam and drives the grippers to move up and down and left and right. The grippers move to the right of the right moving component, and then the movable mechanism drives the grippers downwards to clamp the upper packaging film unwound from the unwinding component. The device can drive the grippers to move upwards, to the right, and downwards, so that the upper packaging film covers the top of the sofa. The upper and lower packaging films together form a packaging bag, with the left and right edges of the upper and lower packaging films connecting to each other, thus sealing the left and right ends of the packaging bag. Compared to traditional manual packaging methods, this eliminates the need for workers to lift the sofa and then wrap the packaging film around its bottom, reducing labor intensity and improving packaging efficiency.

[0011] According to some embodiments of the present invention, the present invention further includes a limiting component located to the left of the unwinding component. The limiting component includes a front column, a rear column, a baffle, and a second lifting drive. The front column and the rear column are located in front of and behind the unwinding component, respectively. The front end and the rear end of the baffle are movably connected to the front column and the rear column, respectively. The second lifting drive is drivenly connected to the baffle to drive the baffle to move up and down.

[0012] Furthermore, to improve the packaging efficiency of the sofa, the sofa packaging device also includes a limiting component located to the left of the unwinding component. The limiting component includes a front column, a right column, a baffle, and a second lifting drive. The front and rear columns are located in front of and behind the unwinding component, respectively, and the front and rear ends of the baffle are connected to the front and rear columns, respectively. In use, after the grippers of the covering component clamp the unwinding upper packaging film, the upper packaging film can be moved upwards, allowing it to pass between the baffle and the unwinding component. The second lifting drive can drive the baffle to move accordingly. The upper packaging film moves upward synchronously, and then the covering component can drive the upper packaging film to move to the left, so that the upper and lower packaging films together form a rectangular cavity. With the operation of the conveying device, the sofa is inserted into the rectangular cavity, thus realizing the wrapping of the sofa by the upper and lower packaging films. This helps to avoid the problem of the upper packaging film obstructing the conveying of the sofa, and avoids the problem of having to wait for the sofa to move into place before the upper packaging film can be stretched. This helps to improve the packaging efficiency of the sofa packaging device and meets the needs of automated production.

[0013] According to some embodiments of the present invention, both the first sewing end and the second sewing end include a forward and backward translation drive, a platform, a folding tube, and a sewing machine. The folding tube and the sewing machine are both connected to the platform, with the folding tube located behind the sewing machine. The forward and backward translation drive is used to drive the platform to slide forward and backward.

[0014] To further improve the stability and flatness of the packaging bag's sealing point, both the folding tube and the sewing machine are connected to the platform. The folding tube is located behind the sewing machine, and its forward and backward translation drive moves the platform backward, allowing the upper and lower packaging films to pass through the folding tube together. Guided by the folding tube, the upper and lower packaging films are folded together, and with the sewing action of the sewing machine, the folded upper and lower packaging films are sewn together as one piece. This enhances the stability of the packaging bag at the sealing point. Furthermore, the folding of the upper and lower packaging films within the folding tube helps to keep the left and back edges of the packaging bag flat, facilitating subsequent transportation.

[0015] According to some embodiments of the present invention, the conveying device includes a first conveying end and a second conveying end extending in a front-to-back manner, the first conveying end and the second conveying end being arranged at a left-to-right interval, the left motion component including a first fixed frame, a first sliding frame and a left-to-right sliding drive, the left-to-right sliding drive being used to drive the first sliding frame to slide left and right relative to the first fixed frame, the first conveying end, the first sewing end, the first pressing end and the horizontal pushing component are all connected to the first sliding frame.

[0016] Considering the differences in width among different sofas, the conveying device includes a first conveying end and a second conveying end extending forward and backward. Both the first and second conveying ends extend forward and backward. Under the synchronous conveying action of the first and second conveying ends, the sofa can be conveyed from back to front. The first and second conveying ends are arranged at left and right intervals, and the first conveying end is connected to the first sliding frame. The left and right sliding drive can drive the first sliding frame to slide left and right relative to the first fixed frame, thereby adjusting the distance between the first and second conveying ends. This makes the sofa packaging device suitable for packaging various sofas. The first sewing end, the first pressing end, and the horizontal pushing component are all connected to the first sliding frame to ensure that the first sewing end can seal the upper and lower packaging films, the first pressing end can adhere the upper and lower packaging films, and the horizontal pushing component can push the sofa to the right to tighten the gap between the packaging bag and the sofa, making the packaging bag fit more tightly against the surface of the sofa.

[0017] According to some embodiments of the present invention, both the first pressing end and the second pressing end include a pressure plate, a linkage mechanism and a linear drive. The pressure plate is rotatably connected to the linkage mechanism, and the linear drive is used to drive the linkage mechanism to unfold or fold, so that the pressure plate moves closer to or away from the conveying surface of the conveying device.

[0018] Both the first and second pressing ends include a pressure plate, a linkage mechanism, and a linear drive. The linear drive can drive the linkage mechanism to unfold or fold, and the pressure plate is connected to the linkage mechanism. When the linear drive drives the linkage mechanism to unfold, it can make the pressure plate move closer to the conveying surface of the conveying device, so as to realize the pressure plate pressing down on the upper and lower packaging films. The pressure plate can also limit the sofa, so as to make the upper and lower packaging films fit tightly against the sofa. The linear drive can drive the linkage mechanism to fold, so that the baffle moves away from the conveying device, thereby avoiding the problem of the baffle obstructing the conveying of the sofa.

[0019] According to some embodiments of the present invention, the feeding device further includes a pressure roller group and a blowing end. The feeding roller group has an upward discharge port. The pressure roller group and the blowing end are both located above the feeding roller group. The pressure roller group and the blowing end are both movable up and down. The pressure roller group and the blowing end are located in front of and behind the discharge port, respectively. The air blowing port of the blowing end is arranged facing the pressure roller group.

[0020] To ensure the lower packaging film adheres tightly to the conveying surface of the conveying device and is conveyed forward, the feeding device also includes a pressure roller assembly and a blowing end. Both the pressure roller assembly and the blowing end can move up and down. When the pressure roller assembly and the blowing end move down to the end near the discharge port, the pressure roller assembly and the blowing end are located in front of and behind the discharge port, respectively, and the air outlet of the blowing end is set towards the pressure roller assembly. Under the action of the blowing end, the lower packaging film delivered from the discharge port moves closer to the pressure roller assembly and adheres tightly to the pressure roller assembly. Under the rotation of the pressure roller assembly, the lower packaging film can be unwound onto the conveying surface of the conveying device, thereby avoiding the problem of wrinkles and accumulation of the lower packaging film on the conveying surface of the conveying device, which helps to keep the lower packaging film flat and convey it forward.

[0021] According to some embodiments of the present invention, the present invention further includes a feeding device, wherein the winding feeding device is located between the feeding device and the conveying device. The feeding device includes a roller drive, a left limiting plate, a right limiting plate and an adjusting translation drive. The roller drive is located below the left limiting plate and the right limiting plate. The conveying direction of the roller drive is from back to front. The adjusting translation drive is used to drive the left limiting plate and the right limiting plate closer to or further away from each other.

[0022] Considering the issue of misalignment during sofa loading, the sofa packaging device also includes a roller drive, a left limiting plate, a right limiting plate, and an adjusting translation drive. The roller drive is located below the left and right limiting plates, and its conveying direction is from back to front. When the sofa is loaded onto the roller drive, it is conveyed between the left and right limiting plates. The adjusting translation drive can drive the left and right limiting plates to move closer together, so that the sofa is sandwiched between them. Under the abutting action of the left and right limiting plates, the sofa's placement position can be corrected, allowing the sofa to cooperate with the subsequent left and right motion components to achieve automatic sofa packaging.

[0023] According to some embodiments of the present invention, the unwinding component further includes a fixing plate, a clamping plate, and a clamping drive. The clamping drive is connected to the clamping plate for transmission. The winding roller can unwind the upper packaging film between the fixing plate and the clamping plate. The clamping drive is used to drive the clamping plate and the fixing plate closer or further apart.

[0024] To enable the covering component to clamp and stretch the upper packaging film, the unwinding component also includes a fixing plate, a clamping plate, and a clamping drive. The take-up roller can unwind the upper packaging film between the fixing plate and the clamping plate. The clamping drive can drive the clamping plate and the fixing plate to move closer to each other to clamp the upper packaging film located between the fixing plate and the clamping plate, thereby fixing the position of the upper packaging film. After the gripper moves to the fixed point, it can clamp the upper packaging film to ensure that the upper packaging film can cover the sofa after stretching. The upper packaging film and the lower packaging film together wrap the sofa.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 A three-dimensional structural view of a sofa packaging device provided in an embodiment of the present invention;

[0028] Figure 2 A front view of a sofa packaging device provided in an embodiment of the present invention;

[0029] Figure 3 A three-dimensional structural view of a suspension rod, a first telescopic drive, and a first lifting drive for a sofa packaging device provided in an embodiment of the present invention;

[0030] Figure 4 A three-dimensional structural view of the suspension rod, first telescopic drive, and first lifting drive of a sofa packaging device provided in an embodiment of the present invention;

[0031] Figure 5 A perspective structural view of a horizontal pushing component of a sofa packaging device provided in an embodiment of the present invention;

[0032] Figure 6 A perspective structural view of a covering component of a sofa packaging device provided in an embodiment of the present invention;

[0033] Figure 7 This is a three-dimensional structural view of a covering component of a sofa packaging device provided in an embodiment of the present invention.

[0034] Figure label:

[0035] 100. Conveying device; 110. First conveying end; 120. Second conveying end; 210. First sewing end; 220. First pressing end; 230. Horizontal pushing component; 231. Horizontal movement drive; 232. Push rod; 240. First fixed frame; 250. First sliding frame; 310. Second sewing end; 320. Second pressing end; 321. Pressure plate; 322. Linkage mechanism; 323. Linear drive; 330. Unwinding component; 400. Covering assembly; 410. Crossbeam frame; 421. First transmission rod; 422. First transmission belt; 423. First sliding block; 424. Transmission gear; 425. Rack; 426. Second transmission rod; 427. Connecting rod; 430. Gripper; 500. Suspension assembly; 510. First telescopic drive; 511. First transmission chain; 512. Second sliding block; 520. First lifting drive; 521. Second transmission chain; 522. Third transmission rod; 523. Connecting plate; 530. Suspension rod; 600. Limiting assembly. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0039] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0040] The following is for reference. Figures 1 to 7 According to an embodiment of the present invention, a sofa packaging device can automatically package a sofa through structural design, and the packaging film can make the packaging of the sofa more compact.

[0041] Understandably, see Figure 1 and Figure 2 According to an embodiment of the present invention, a sofa packaging device includes a conveying device 100, a rolling device, a left motion component, a right motion component, and a covering component 400.

[0042] See Figure 1 and Figure 2 The conveying device 100 can be a belt conveyor mechanism, and the conveying direction of the conveying device 100 is from back to front to realize the conveying of the sofa from back to front. The feeding device is located behind the conveying device 100, so as to unwrap the lower packaging film onto the conveying surface of the conveying device 100. After the sofa is loaded, the lower packaging film is located under the sofa, and the sofa and the lower packaging film are conveyed forward together.

[0043] It is understood that the feeding device includes a feeding roller group and a slitting end. The feeding roller group includes at least two rollers that extend left and right. The two rollers are arranged front and back, and an upward feeding port is formed between the two rollers, so that the lower packaging film is unwound to the feeding port. With the conveying action of the conveying device 100, the lower packaging film can be unwound to the conveying surface of the conveying device 100.

[0044] Once the length of the packaging film unwound onto the conveying surface of the conveying device 100 reaches a set threshold, the worker can load the sofa onto the conveying device 100. The sofa is placed on top of the lower packaging film, and as the conveying device 100 conveys the sofa, the lower packaging film and the sofa are conveyed forward together, with the lower packaging film wrapping around the entire underside of the sofa.

[0045] The slitting end can be a cutter. The winding device can be driven by a linear drive to move the cutter left and right. The cutter contacts the lower packaging film to slit the film. After slitting, the lower packaging film and the sofa are conveyed forward together. The linear drive can be a hydraulic cylinder, a pneumatic cylinder, a belt conveyor, etc.

[0046] Understandably, see Figure 1 and Figure 2 The left motion component is located on the left side of the conveying device 100, while the right motion component is located on the right side of the conveying device 100. The left and right motion components are arranged opposite each other.

[0047] The left motion assembly includes a first sewing end 210 movable in the front-back direction, a first pressing end 220 that can move closer to or further away from the conveying device 100, and a lateral pushing member 230. Correspondingly, the right motion assembly includes a second sewing end 310 movable in the front-back direction, a second pressing end 320 that can move closer to or further away from the conveying device 100, and an unwinding member 330.

[0048] The lateral pushing component 230 includes a lateral movement drive 231 and a push rod 232 extending forward and backward. The lateral movement drive 231 can drive the push rod 232 to move horizontally. The unwinding component 330 includes a forward and reverse rotation motor and a take-up roller. The take-up roller can be connected to the upper packaging film. The forward and reverse rotation motor can drive the take-up roller to rotate forward or reverse to realize the unwinding or rewinding of the upper packaging film.

[0049] The covering component 400 is mounted above the conveying device 100. The covering component 400 is used to stretch the upper packaging film unwound by the unwinding component 330 to above the conveying device 100, so that the upper packaging film and the lower packaging film are respectively placed above and below the sofa.

[0050] In use, under the action of the feeding roller group, the feeding device can unwrap the lower packaging film onto the conveying surface of the conveying device 100. In conjunction with the loading of the sofa, the lower packaging film can be placed under the sofa, and the sofa and the lower packaging film are conveyed forward together.

[0051] The right motion assembly includes an unwinding component 330 for unwinding and rewinding the upper packaging film. The covering component 400 is used to stretch the unwound upper packaging film above the conveyor 100 so that the sofa is placed between the upper and lower packaging films. The first pressing end 220 of the left motion assembly operates and moves closer to the conveyor 100, so that the left edge of the upper packaging film is in close contact with the left edge of the lower packaging film. The first sewing end 210 can move in the front-back direction, thereby sewing the left edges of the upper and lower packaging films.

[0052] Then the first pressing end 220 moves away from the conveying device 100, while the second pressing end 320 moves closer to the conveying device 100. The second pressing end 320 can limit the right end of the sofa and make the right edge of the upper packaging film and the right edge of the lower packaging film fit tightly together. The horizontal pushing component 230 operates, and the horizontal movement drive 231 drives the push rod 232 to move to the right. At the same time, the winding roller can wind up the upper packaging film, so that the upper packaging film is pulled back, thereby making the sofa move closer to the second pressing end 320 and making the left end seals of the upper and lower packaging films fit tightly with the sofa, thereby reducing the gap between the packaging bag and the left end of the sofa. The sofa moving towards the second pressing end 320 can also reduce the gap between the packaging bag and the right end of the sofa.

[0053] Then, the second sewing end 310 can sew the right edge of the upper packaging film and the right edge of the lower packaging film, thereby sealing the upper and lower packaging films at both ends. This helps to improve packaging efficiency and reduce the labor intensity of workers. Through the cooperation of the horizontal pushing component 230 and the unwinding component 330, the sofa packaging device can make the upper and lower packaging films fit tightly against the sofa, so that the packaging bag and the sofa are more tightly packaged. This helps to reduce the space occupied by the sofa after packaging, facilitates the transportation of the package, and reduces the risk of damage to the sofa during transportation.

[0054] Understandably, see Figure 5 The transverse drive 231 is a hydraulic cylinder or a pneumatic cylinder. Multiple transverse drives 231 are provided along the front and back direction of the push rod 232. All multiple transverse drives 231 are connected to the push rod 232, so that the push rod 232 can push the sofa, thereby making the sofa move closer to the second pressing end 320. With the reverse pulling of the packaging film, the left end of the upper packaging film can be moved upward, thereby causing the left end of the upper packaging film and the right packaging film to be tightly attached to the sofa, that is, reducing the gap between the packaging bag and the left end of the sofa.

[0055] Specifically, the push rod 232 is cylindrical, which allows the upper packaging film to be pulled upward from the gap between the push rod 232 and the sofa, so that the left ends of the upper and lower packaging films are attached to the sofa.

[0056] Understandably, see Figure 6 and Figure 7 The covering component 400 includes a horizontally extending crossbeam 410, a movable mechanism, and grippers 430. The left and right ends of the crossbeam 410 are connected to the left and right moving components, respectively, meaning the crossbeam 410 is mounted above the conveying device 100. The movable mechanism is connected to the crossbeam 410 and can drive the grippers 430 to move up and down and left and right.

[0057] Specifically, the crossbeam frame 410 includes a first crossbeam and a second crossbeam, both extending horizontally. The first and second crossbeams are arranged with a front-to-back gap. The movable mechanism includes a first motor, a first transmission rod 421, a first transmission belt 422, and a first sliding block 423. The two ends of the first transmission rod 421 extend front-to-back, and the first motor is connected to the first transmission rod 421 to drive the first transmission rod 421 to rotate forward or backward. The first transmission rod 421 has a first transmission wheel connected to both its front and rear ends. The first transmission wheel is rotatably connected to the crossbeam frame 410. The right ends of the first crossbeam and the second crossbeam are rotatably connected to the second transmission wheel. A first transmission belt 422 is wound between the first transmission wheel and the second transmission wheel. The front end of the first sliding block 423 is connected to the front first transmission belt 422, and the rear end of the first sliding block 423 is connected to the rear first transmission belt 422. The first motor drives the first transmission rod 421 to rotate, thereby driving the two front and rear first transmission belts 422 to rotate synchronously, thereby causing the first sliding block 423 to slide left and right to achieve left and right driving of the gripper 430.

[0058] The moving mechanism also includes a second motor, a second transmission rod 426, a transmission gear 424, a rack 425, and a connecting rod 427. The two ends of the second transmission rod 426 extend forward and backward. Both the second motor and the second transmission rod 426 are connected to the first sliding block 423. The second motor is used to drive the second transmission rod 426 to rotate forward or backward. The front end and the rear end of the second transmission rod 426 are connected to the transmission gear 424. The front end and the rear end of the connecting rod 427 are connected to the upward-extending rack 425. The rack 425 and the transmission gear 424 correspond one-to-one and mesh for transmission. Multiple grippers 430 are provided. The multiple grippers 430 are all connected to the connecting rod 427 and are arranged at intervals along the connecting rod 427.

[0059] When it is necessary to clamp and stretch the unwound packaging film, the first motor operates, thereby driving the first transmission rod 421 to rotate. The first transmission rod 421 rotates through the first transmission wheels at both ends, thereby driving the first transmission belt 422, which is wound between the first transmission wheel and the second transmission wheel, to rotate forward or reverse. Since the front end of the first sliding block 423 is connected to the first transmission belt 422 and the rear end of the first sliding block 423 is connected to the second transmission belt, the first sliding block 423 can be driven to move to the right. When the first sliding block 423 approaches the right moving component. The second motor operates, driving the second transmission rod 426 to rotate. The second transmission rod 426 is driven by the meshing of the transmission gears 424 and racks 425 at its left and right ends, thereby driving the connecting rod 427 to descend to the side close to the unwinding component 330. The gripper 430 can clamp the upper packaging film unwound at the unwinding component 330. Then the connecting rod 427 moves upward and resets to the left, so that the upper packaging film and the lower packaging film together form a cavity that the sofa can pass through. With the cooperation of the left and right motion components, the upper and lower packaging films can wrap the sofa.

[0060] Understandably, see Figure 1 and Figure 2 To improve the efficiency of sofa packaging, the sofa packaging device also includes a limiting component 600, which is located to the left of the unwinding component 330. The limiting component 600 includes a front column, a rear column, a baffle, and a second lifting drive. The front column and the rear column are located in front of and behind the unwinding component 330, respectively. The front end and the rear end of the baffle are movably connected to the front column and the rear column, respectively. The front end and the rear end of the baffle slide vertically along the front column and the rear column, respectively. The second lifting drive is connected to the baffle to drive the baffle to move up and down.

[0061] In use, after the gripper 430 of the covering component 400 clamps the unwound upper packaging film, the upper packaging film can be moved upward so that it passes between the baffle and the unwinding component 330. The second lifting drive can drive the baffle to move upward synchronously with the upper packaging film. Then, the covering component 400 can drive the upper packaging film to move to the right. Under the limiting action of the baffle, the upper packaging film is set in an L-shape so that the upper packaging film and the lower packaging film together form a rectangular cavity. With the operation of the conveying device 100, the sofa is inserted into the rectangular cavity, thus realizing the wrapping of the sofa by the upper and lower packaging films.

[0062] If the covering component 400 moves before the sofa is in place, the upper packaging film will sag due to its own weight. The sagding packaging film will be located on the sofa's conveying trajectory, thus affecting the sofa's conveying. The sofa packaging device, through the setting of the limiting component 600, limits the upper packaging film with a baffle, thereby increasing the cavity formed between the upper and lower packaging films. Combined with the conveying action of the conveying device 100, the sofa can be inserted between the upper and lower packaging films, thereby saving waiting time and improving the packaging efficiency of the sofa.

[0063] If the covering component 400 operates after the sofa is in place, it can certainly cover the sofa with the upper packaging film, but it will inevitably prolong the entire packaging time of the sofa, which is not conducive to improving the efficiency of sofa packaging.

[0064] Understandably, the second lifting drive may include a drive motor, a belt, and drive wheels. At least two drive wheels are rotatably connected to the upper and lower ends of the front column. The belt is wound between the upper and lower drive wheels. The drive motor can drive the belt to rotate forward or backward. The front end of the baffle is connected to the belt, thereby driving the baffle to lift and lower, providing a support point for the upper packaging film near the right moving component, so that the upper packaging film and the lower packaging film together form a cavity into which the sofa can pass.

[0065] Understandably, see Figure 3 and Figure 4 Considering that some sofas have corners, when the packaging film is tightly attached to the outline of the sofa, the edges of the cut upper packaging film are not even, which is not conducive to the clamping and packaging of the next upper packaging film. For example, some sofas are L-shaped, and when the sofa is placed on the conveyor device 100, the length direction of the sofa is generally consistent with the conveying direction of the conveyor device 100. If the upper and lower packaging films are tightened along the outline of the sofa, it can certainly achieve tight packaging of the sofa, but the edges of the cut upper packaging film are not even, and the covering component 400 has difficulty clamping the upper packaging film. Therefore, the sofa packaging device also includes a suspension component 500. The suspension component 500 includes a forward-extending suspension rod 530. By abutting the upper packaging film with the suspension rod 530, the gaps in the sofa are compensated, so that the edges of the cut upper packaging film are more even.

[0066] Specifically, the suspension assembly 500 includes a frame, a first telescopic drive 510, a first lifting drive 520, and a suspension rod 530. The suspension rod 530 extends forward and backward. The first telescopic drive 510 and the first lifting drive 520 are both connected to the frame. The frame includes a first column and a second column that extend vertically. The first column and the second column are arranged at a distance from each other.

[0067] The first lifting drive 520 includes a third motor, a third transmission rod 522, a second transmission chain 521, a first sprocket, and a connecting plate 523. The front and rear ends of the third transmission rod 522 are rotatably connected to the first and second columns, respectively. A first sprocket is connected to both the front and rear ends of the third transmission rod 522. A first sprocket is rotatably connected to the lower ends of both the first and second columns. A second transmission chain 521 is wound between the two first sprockets. The front and rear ends of the connecting plate 523 are connected to the two second transmission chains 521, respectively. Driven by the third motor, the two second transmission chains 521 rotate synchronously, thereby driving the connecting plate 523 to move up and down. The suspension rod 530 is connected to the connecting plate 523 to achieve lifting and lowering of the suspension rod 530.

[0068] The first telescopic drive 510 includes a fourth motor, a first transmission chain 511, a second sprocket, and a second sliding block 512. Two second sprockets are rotatably connected to the left surface of the connecting plate 523. The two second sprockets are arranged at a distance from each other, and the first transmission chain 511 is wound between the two second sprockets. The fourth motor is connected to one of the second sprockets to drive the first transmission chain 511 to rotate forward or backward. The second sliding block 512 is connected to the first transmission chain 511 to drive the second sliding block 512 to move back and forth. The rear end of the suspension rod 530 is connected to the second sliding block 512, thereby driving the suspension rod 530 to extend and retract back and forth.

[0069] The first lifting drive 520 can be used to drive the suspension rod 530 to move up and down to adjust the height position of the suspension rod 530, and the first telescopic drive 510 can be used to drive the suspension rod 530 to move back and forth so that the suspension rod 530 can be positioned between the left motion component and the right motion component. When the covering component 400 stretches the unwound upper packaging film, the suspension rod 530 can compensate for the cavity at the corner of the sofa, which helps to make the upper packaging film and the lower packaging film form a wrapping cavity with the same front and back volume. This makes the edge of the upper packaging film after cutting more flush, so that the covering component 400 can continuously clamp and stretch the upper packaging film multiple times, which helps to improve the efficiency of sofa packaging.

[0070] Understandably, see Figure 1 and Figure 2 To further improve the stability and flatness of the sealing area of ​​the packaging bag, both the first sewing end 210 and the second sewing end 310 include a forward and backward translation drive, a platform, a hemming tube, and a sewing machine. The hemming tube and the sewing machine are both connected to the platform, with the hemming tube located behind the sewing machine. The forward and backward translation drive is used to drive the platform to slide forward and backward.

[0071] Both the folding tube and the sewing machine are connected to the platform. The folding tube is located behind the sewing machine. The forward and backward translation drive can move the platform backward, allowing the upper and lower packaging films to be inserted into the folding tube together. Under the guidance of the folding tube, the upper and lower packaging films are folded together. With the sewing action of the sewing machine, the folded upper and lower packaging films are sewn together as one piece, which helps to enhance the stability of the packaging bag at the sealing point. Furthermore, the folding of the upper and lower packaging films inside the folding tube helps to keep the left and back edges of the packaging bag flat, which is conducive to subsequent transportation.

[0072] The folding tube includes a tube body and a first guide member. The tube body has a first cavity and a second cavity arranged vertically. The first cavity extends through the tube from front to back and is open to the left. The edges of the upper and lower packaging films can be inserted into the first cavity from the rear and left ends of the tube body, respectively. The right end of the first cavity is connected to the right end of the second cavity. The first guide member extends from back to front and from top to bottom. Under the guidance of the first guide member, both the upper and lower packaging films can be folded from the first cavity to the second cavity. The first cavity extends from back to front and from right to left. After the lower packaging film is inserted into the second cavity, under the guidance of the first guide, the edges of the upper and lower packaging films can be gradually folded together, so that the packaging bag can be sealed by the sewing machine. Compared with the simple superposition of two layers of packaging film, the use of this folding tube can realize the folding of the upper and lower packaging films. With the closure of the sewing machine, it is beneficial to enhance the connection stability of the packaging bag at the seal. Moreover, the width limitation of the first cavity can make the edge of the folded packaging film smoother, thereby enhancing the packaging effect of furniture such as sofas.

[0073] The forward and backward translation drive includes a guide rail, a drive motor, a belt, and rollers. The belt is wound around two rollers at the front and back, and the drive motor is used to drive the rollers to rotate, thereby driving the belt to rotate forward or backward. The two ends of the guide rail are arranged to extend forward and backward. The rollers are rotatably connected to the guide rail, and the stage is slidably connected to the guide rail. The lower end of the stage is connected to the belt. With the forward or reverse rotation of the belt, the stage can be reciprocated in the forward and backward direction.

[0074] The second sewing end 310 of the right motion component also includes a cutter connected to the platform and located behind the folding tube. That is, when the platform moves backward, the cutter first comes into contact with the upper packaging film to cut the upper packaging film.

[0075] Understandably, see Figure 2Considering the differences in width between different sofas, the conveying device 100 includes a first conveying end 110 and a second conveying end 120 extending front to back. The first conveying end 110 and the second conveying end 120 are arranged at left and right intervals. The left motion component includes a first fixed frame 240, a first sliding frame 250 and a left and right sliding drive. The left and right sliding drive is used to drive the first sliding frame 250 to slide left and right relative to the first fixed frame 240. The first conveying end 110, the first sewing end 210, the first pressing end 220 and the horizontal pushing component 230 are all connected to the first sliding frame 250.

[0076] Both the first conveying end 110 and the second conveying end 120 are belt conveying mechanisms, and both the first conveying end 110 and the second conveying end 120 extend forward and backward. Under the synchronous conveying action of the first conveying end 110 and the second conveying end 120, the sofa can be conveyed from back to front. The first conveying end 110 and the second conveying end 120 are arranged at left and right intervals, and the first conveying end 110 is connected to the first sliding frame 250. The left and right sliding drive can drive the first sliding frame 250 to slide left and right relative to the first fixed frame 240, thereby adjusting the distance between the first conveying end 110 and the second conveying end 120, so that the sofa packaging device can be used for packaging various sofas.

[0077] The first sewing end 210, the first pressing end 220, and the horizontal pushing component 230 are all connected to the first sliding frame 250 to ensure that the first sewing end 210 can seal the upper and lower packaging films, the first pressing end 220 can adhere the upper and lower packaging films, and the horizontal pushing component 230 can push the sofa to the right to tighten the gap between the packaging bag and the sofa, so that the packaging bag is more closely attached to the surface of the sofa.

[0078] Specifically, left and right sliding drives can be linear drive mechanisms such as hydraulic cylinders, pneumatic cylinders, and linear motors.

[0079] Understandably, the right-hand motion assembly includes a second fixed frame, a second sliding frame, and a left-right sliding drive. The left-right sliding drive is used to drive the second sliding frame to slide left and right relative to the second fixed frame. The second conveying end 120, the second sewing end 310, the second pressing end 320, and the unwinding component 330 are all connected to the second sliding frame. The left-right sliding drive can drive the second sliding frame to slide left and right relative to the second fixed frame, thereby adjusting the distance between the first conveying end 110 and the second conveying end 120, making the sofa packaging device suitable for packaging various sofas.

[0080] Understandably, see Figure 2In order to enable the covering component 400 to clamp and stretch the upper packaging film, the unwinding component 330 also includes a fixed plate, a clamping plate and a clamping drive. The clamping drive is connected to the clamping plate for transmission. The winding roller can unwind the upper packaging film between the fixed plate and the clamping plate. The clamping drive is used to drive the clamping plate to move closer to or away from the fixed plate.

[0081] The take-up roller can unwind the upper packaging film between the fixed plate and the clamping plate. The clamping drive can drive the clamping plate and the fixed plate to move closer to each other to clamp the upper packaging film located between the fixed plate and the clamping plate, thereby fixing the position of the upper packaging film. After the gripper 430 moves to the fixed point, it can clamp the upper packaging film to ensure that the upper packaging film can cover the top of the sofa. The upper packaging film and the lower packaging film together wrap the sofa.

[0082] Understandably, in order to facilitate the gripper 430 to grip the upper packaging film, notches are provided on the front side of both the fixed plate and the clamping plate. Multiple notches are provided at intervals along the front-back direction on both the fixed plate and the clamping plate. The gripper 430 faces the fixed plate and is connected to the movable mechanism.

[0083] The unwinding component 330 can unwind the upper packaging film between the fixed plate and the clamping plate. The clamping drive drives the clamping plate to press down onto the fixed plate, clamping and positioning the upper packaging film. The movable mechanism drives the gripper 430 to approach the upper packaging film clamped between the fixed plate and the clamping plate. The gripper 430 grabs the upper packaging film. Then, the clamping drive drives the clamping plate to move away from the fixed plate. At this time, the movable mechanism can drive the gripper 430 to bypass the baffle and reach above the conveying device 100, laying the upper packaging film on the top side of the sofa for wrapping and protection. After the first pressing end 220 presses the upper packaging film, the gripper 430 returns to its reset position.

[0084] Understandably, multiple unwinding components 330 are provided, spaced apart in the vertical direction. Different unwinding components 330 can hold packaging bags of different widths in practical applications. The fixing plate, clamping plate, and clamping drive are grouped together, with multiple sets arranged vertically on the second fixed frame where the right motion component is located. Multiple take-up rollers correspondingly unwind between multiple sets of fixing plates and clamping plates. When using packaging film to package the sofa, the gripper 430 can move to different unwinding components 330 for gripping as needed, improving the flexibility of use.

[0085] Understandably, see Figure 2 The first pressing end 220 and the second pressing end 320 both include a pressing plate 321, a linkage mechanism 322 and a linear drive 323. The pressing plate 321 is rotatably connected to the linkage mechanism 322. The linear drive 323 is used to drive the linkage mechanism 322 to unfold or fold, so that the pressing plate 321 moves closer to or away from the conveying surface of the conveying device 100.

[0086] When the linear drive 323 can drive the linkage mechanism 322 to unfold, the pressure plate 321 can move closer to the conveying surface of the conveying device 100, so as to press the upper packaging film and the lower packaging film down. The pressure plate 321 can also limit the sofa, so as to ensure that the upper packaging film and the lower packaging film are tightly attached to the sofa. The linear drive 323 can drive the linkage mechanism 322 to fold, so that the baffle moves away from the conveying device 100, thereby avoiding the problem of the baffle obstructing the conveying of the sofa.

[0087] Taking the left motion component as an example, both the linear drive 323 and the linkage mechanism 322 are connected to the first sliding frame 250, and both the pressure plate 321 and the linear drive 323 are connected to the linkage mechanism 322. The linkage mechanism 322 includes at least three links, two of which are parallel to each other and have one end rotatably connected to the first fixed frame 240, while the other end is rotatably connected to the third link. The pressure plate 321 is connected to the bottom end of the third link, and the linear drive 323 transmits power to any one of the links. The linkage mechanism 322 can be unfolded and folded for storage. The linear drive 323 drives the linkage mechanism 322 to unfold. At this time, the pressure plate 321 can be moved to the first conveying end 110 to press the upper packaging film located on the upper side of the sofa onto the lower packaging film located on the lower side of the sofa. After the first sewing end 210 sews the upper packaging film and the lower packaging film together, the linear drive 323 drives the linkage mechanism 322 to fold. At this time, the pressure plate 321 can be moved back to the first sliding frame 250.

[0088] The structure of the second pressing end 320 of the right motion component is the same as that of the first pressing end 220, and will not be described again here.

[0089] Understandably, in order to ensure that the lower packaging film can adhere tightly to the conveying surface of the conveying device 100 and be conveyed forward, the feeding device also includes a pressure roller group and a blowing end. The feeding roller group has an upward discharge port, and both the pressure roller group and the blowing end are located above the feeding roller group. Both the pressure roller group and the blowing end can move up and down.

[0090] When the pressure roller assembly and the blowing end move down to the end near the discharge port, the pressure roller assembly and the blowing end are located in front of and behind the discharge port, respectively, and the air outlet of the blowing end is set towards the pressure roller assembly. Under the action of the blowing end, the lower packaging film sent from the discharge port moves closer to the pressure roller assembly and adheres tightly to the pressure roller assembly. Under the rotation of the pressure roller assembly, the lower packaging film can be unwound onto the conveying surface of the conveying device 100, thereby avoiding the problem of wrinkles and accumulation of the lower packaging film on the conveying surface of the conveying device 100, which is conducive to keeping the lower packaging film flat and conveying it forward.

[0091] The pressure roller assembly includes a gantry frame, a coil feeding lifting drive, a coil feeding lifting frame, and a lower pressure roller. The gantry frame is connected to the top side of the feed roller assembly. The coil feeding lifting drive is connected to the gantry frame. The coil feeding lifting frame is connected to the coil feeding lifting drive. The coil feeding lifting drive can drive the coil feeding lifting frame to move up and down. The lower pressure roller is rotatably connected to the coil feeding lifting frame around a left-right rotation axis.

[0092] The outer circumference of the lower pressure roller is provided with an annular groove, and multiple annular grooves are arranged in the left-right direction. The blowing end includes an air blowing pipe connected to the feeding lifting frame, and multiple air blowing pipes are arranged at intervals in the left-right direction.

[0093] In practical applications, multiple air-blowing pipes can be connected to different air supply sources or the same air supply source through pipelines. The air supply source can be an air pump, air-blowing valve, etc. The multiple air-blowing pipes are respectively aligned with multiple annular grooves, and the end of the air-blowing pipe aligned with the annular groove is the air-blowing end. The lower packaging film is continuously fed out of the discharge port. When the winding lifting drive moves the winding lifting frame downward, the lower pressure roller further flattens and conveys the lower packaging film. During the transfer process, the airflow blown out from the air-blowing end can also pass through the annular groove and blow the lower packaging film at the discharge port to the side away from the conveying device 100, so that the lower packaging film can be smoothly conveyed to the left and right conveying ends, which helps to prevent the lower packaging film from folding when it moves to the first conveying end 110 and the second conveying end 120.

[0094] Understandably, considering the issue of misalignment when loading sofas, the sofa packaging device also includes a loading device. The roll feeding device is located between the loading device and the conveying device 100. The loading device includes a roller drive, a left limit plate, a right limit plate, and an adjusting translation drive. The roller drive is located below the left and right limit plates. The conveying direction of the roller drive is from back to front. The adjusting translation drive is used to drive the left and right limit plates closer or further apart.

[0095] When the sofa is fed into the roller drive, it is conveyed between the left and right limiting plates. Adjusting the translation drive moves the left and right limiting plates closer together, clamping the sofa between them. The contact action of the left and right limiting plates corrects the sofa's position, allowing it to cooperate with subsequent left and right motion components for automatic packaging. The translation drive can be a linear drive mechanism such as a hydraulic cylinder or pneumatic cylinder.

[0096] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

[0097] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sofa packaging device, characterized in that, include: A conveying device (100) for conveying the sofa from back to front; A winding device is located at the rear end of the conveying device (100). The winding device includes a winding roller group and a slitting end. The winding roller group is used to unwind the lower packaging film onto the conveying surface of the conveying device (100). The slitting end can move left and right to cut the lower packaging film. A left motion assembly, located to the left of the conveying device (100), includes a first sewing end (210) movable in a front-back direction, a first pressing end (220) capable of moving closer to or further away from the conveying device (100), and a lateral pusher (230), the lateral pusher (230) including a lateral drive (231) and a push rod (232) extending in a front-back direction, the lateral drive (231) being capable of driving the push rod (232) to move left and right; A right motion assembly, located to the right of the conveying device (100), includes a second sewing end (310) movable in the front-back direction, a second pressing end (320) that can move closer to or further away from the conveying device (100), and an unwinding component (330). The unwinding component (330) includes a forward and reverse motor and a take-up roller. The forward and reverse motor is used to drive the take-up roller to rotate forward or reverse, and the take-up roller is used to unwind and rewind the packaging film. A covering assembly (400) is mounted above the conveying device (100) and is used to stretch the upper packaging film unwound by the unwinding member (330) above the conveying device (100).

2. The sofa packaging device according to claim 1, characterized in that, It also includes a first telescopic drive (510), a first lifting drive (520), and a suspension rod (530) extending forward and backward. The first lifting drive (520) is used to drive the suspension rod (530) to move up and down, and the first telescopic drive (510) is used to drive the suspension rod (530) to move forward and backward. The suspension rod (530) can move between the left motion component and the right motion component and is located below the covering component (400).

3. The sofa packaging device according to claim 1, characterized in that, The covering component (400) includes a horizontally extending beam (410), a movable mechanism, and a gripper (430). The left and right ends of the beam (410) are connected to the left and right moving components, respectively. The movable mechanism is connected to the beam (410) and is throttle-connected to the gripper (430) to drive the gripper (430) to move up and down and left and right.

4. The sofa packaging device according to claim 3, characterized in that, It also includes a limiting component (600) located to the left of the unwinding component (330). The limiting component (600) includes a front column, a rear column, a baffle, and a second lifting drive. The front column and the rear column are located in front of and behind the unwinding component (330), respectively. The front end and the rear end of the baffle are movably connected to the front column and the rear column, respectively. The second lifting drive is drivenly connected to the baffle to drive the baffle to move up and down.

5. The sofa packaging device according to claim 1, characterized in that, Both the first sewing end (210) and the second sewing end (310) include a forward and backward translation drive, a platform, a folding tube, and a sewing machine. The folding tube and the sewing machine are both connected to the platform. The folding tube is located behind the sewing machine. The forward and backward translation drive is used to drive the platform to slide forward and backward.

6. The sofa packaging device according to claim 1, characterized in that, The conveying device (100) includes a first conveying end (110) and a second conveying end (120) extending in a front-to-back manner. The first conveying end (110) and the second conveying end (120) are arranged at left-right intervals. The left motion component includes a first fixed frame (240), a first sliding frame (250), and a left-right sliding drive. The left-right sliding drive is used to drive the first sliding frame (250) to slide left and right relative to the first fixed frame (240). The first conveying end (110), the first sewing end (210), the first pressing end (220), and the horizontal pushing component (230) are all connected to the first sliding frame (250).

7. The sofa packaging device according to claim 1, characterized in that, Both the first pressing end (220) and the second pressing end (320) include a pressure plate (321), a linkage mechanism (322), and a linear drive (323). The pressure plate (321) is rotatably connected to the linkage mechanism (322), and the linear drive (323) is used to drive the linkage mechanism (322) to unfold or fold, so that the pressure plate (321) moves closer to or away from the conveying surface of the conveying device (100).

8. The sofa packaging device according to claim 1, characterized in that, The feeding device further includes a pressure roller group and a blowing end. The feeding roller group has an upward discharge port. The pressure roller group and the blowing end are both located above the feeding roller group. The pressure roller group and the blowing end can move up and down. The pressure roller group and the blowing end are respectively located in front of and behind the discharge port. The air blowing port of the blowing end is set towards the pressure roller group.

9. The sofa packaging device according to claim 1, characterized in that, It also includes a feeding device, the winding feeding device being located between the feeding device and the conveying device (100). The feeding device includes a roller drive, a left limiting plate, a right limiting plate and an adjusting translation drive. The roller drive is located below the left limiting plate and the right limiting plate. The conveying direction of the roller drive is from back to front. The adjusting translation drive is used to drive the left limiting plate and the right limiting plate closer or further apart.

10. The sofa packaging device according to claim 1, characterized in that, The unwinding component (330) further includes a fixing plate, a clamping plate, and a clamping drive. The clamping drive is connected to the clamping plate. The take-up roller can unwind the upper packaging film between the fixing plate and the clamping plate. The clamping drive is used to drive the clamping plate to move closer to or further away from the fixing plate.

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