Full-automatic special sofa packaging machine

Abstract

The invention relates to the technical field of sofa packaging, and discloses a sofa packaging full-automatic special machine. The full-automatic sofa packaging machine comprises a first rack, a first motor, a conveying belt, a packaging carton and a second rack, the first motor is installed on the side surface of the first rack, a driving shaft of the first motor is fixedly connected with a transmission shaft in the first rack, the conveying belt is installed on the inner wall of the first rack, and the packaging carton is placed on the upper surface of the conveying belt; the second rack is arranged on the right side of the first rack, and a folding device is arranged on the surface of the second rack. According to the full-automatic sofa packaging machine, the folding device is arranged, folding action automation is achieved through mechanical transmission, a traditional manual folding process is replaced, physical burden and efficiency fluctuation caused by manual operation are eliminated, interference of manual intervention on the sofa shape after air exhaust and compression is avoided, the packaging process is coherently linked from air exhaust, folding and packaging, and the packaging efficiency is improved. And the overall operation efficiency and the automation level of the packing machine are obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sofa packaging, in particular to a fully automatic special machine for packaging sofas. Background Art

[0002] A sofa is a piece of household furniture that provides comfortable support for sitting, lying down, and resting. It is usually composed of a load-bearing frame (wood, metal, or composite panels), an elastic filling layer (sponge, down, latex, etc.), and a surface fabric (cloth, leather, technical fabric, etc.). It has various shapes and can be designed as a single, double, triple, or modular sofa. Some sofas have armrests, backrests, or storage functions. A sofa packing machine is an automated packaging equipment designed specifically for sofa products. It is mainly used for compression, film wrapping, or boxing of sofas before leaving the factory. It improves transportation efficiency by reducing the packaging volume and protects the sofa from bumps, stains, and damage.

[0003] The manual packaging process in sofa production faces significant efficiency bottlenecks, severely restricting the continuity and stability of the packaging process. Although some manufacturers have introduced packaging machines to assist with operations, the core process still relies on manual labor, resulting in significant efficiency fluctuations and physical exhaustion. Folding sofas requires repeated bending and exertion, and after packaging 10-15 sofas in a single batch, workers' arms and waist muscles are prone to fatigue. Data shows that after two hours of continuous work, a decrease in physical strength can cause folding speeds to slow by over 30%, strap positioning errors to increase by 25%, and the time required to pack a single sofa from an initial three minutes to five to six minutes. If 50-80 sofas need to be packed per day, worker efficiency can drop to 60% of its initial level in the latter stages of the workday, extending the overall packing cycle by two to three hours. This manual-dependent packing model neither guarantees stable efficiency nor increases the workload. As sofa production capacity continues to increase, it struggles to meet the pace of large-scale production. Therefore, we propose a fully automatic machine specifically designed for packing and packaging sofas (particularly those with a high prevalence of sponge foam). Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a fully automatic special machine for sofa packaging, which solves the problem that the existing sofa packaging mode relies on manual labor, which can neither guarantee efficiency and stability nor increase the labor burden of the staff. In the production scenario where sofa production capacity is increasing, it is difficult to meet the rhythm requirements of large-scale production.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A fully automatic special machine for sofa packaging, comprising a frame 1, a motor 1, a conveyor belt, a packaging carton, and a frame 2, wherein the motor 1 is mounted on the side surface of the frame 1, the drive shaft of the motor 1 is fixedly connected to the transmission shaft inside the frame 1, the conveyor belt is mounted on the inner wall of the frame 1, the packaging carton is placed on the upper surface of the conveyor belt, the frame 2 is arranged on the right side of the frame 1, and a folding device is provided on the surface of the frame 2; The folding device includes a placing plate, the placing plate is fixedly connected to the upper surface of the frame 2, the side surface of the frame 2 is fixedly connected to the mounting frame, the inner side of the mounting frame is fixedly connected to the motor 2, the driving shaft of the motor 2 is fixedly connected to the gear 1, the inner wall of the frame 2 is rotatably connected to the limit shaft, the surface of the limit shaft is fixedly connected to the connecting frame, the side of the connecting frame away from the limit shaft is fixedly connected to the gear 2, the gear 2 is meshed with the tooth groove of the gear 1, the surface of the connecting frame at the front end is fixedly connected to the first clamping plate, and the surface of the connecting frame at the rear end is fixedly connected to the second clamping plate; An auxiliary device for extracting air from the packaging bag is provided on the surface of the second clamping plate.

[0006] Preferably, baffles are fixedly connected to the side surfaces of the first and second plywoods, and mounting cavities may be provided on the surfaces of the first and second plywoods, and sofa placement sensors may be installed on the inner walls of the first and second plywoods located in the mounting cavities. The baffles may form a certain shielding structure at the edges of the first and second plywoods to block the sofa placed on the first and second plywoods, thereby reducing the probability of the sofa deviating from the effective working area of ​​the first and second plywoods during placement.

[0007] Preferably, a protective cover is fixedly connected to the surface of the mounting frame, and the protective cover is movably abutted against the surface of the connecting frame. The protective cover is sleeved on the surface of gear one, and the protective cover is sleeved on the surface of gear two. The drive shaft of motor two is inserted into the inner wall of the protective cover. The protective cover can be used to protect the meshing part of gear one and gear two, so as to reduce the exposure of gear one and gear two, resulting in the probability of external dust and the like entering the meshing part, and further ensure the safety of gear one and gear two in working condition.

[0008] Preferably, the first plywood is arranged in an arc shape on one side close to the placement plate, and the second plywood is arranged in an arc shape on one side close to the placement plate. The length of the second plywood is longer than the first plywood. By utilizing the flipping effect of the first plywood and the second plywood, the sofa can be automatically bent and compressed during the packing process to reduce the operation probability of the staff, thereby increasing the packing efficiency of the sofa.

[0009] Preferably, the auxiliary device includes a cylinder 1, which is fixedly connected to the lower surface of the second clamping plate, a square hole is opened on the surface of the second clamping plate, and the inner wall of the second clamping plate located at the square hole is slidably connected to a linkage frame, the piston rod of the cylinder is fixedly connected to the side surface of the linkage frame, the upper surface of the linkage frame is fixedly connected to an assembly frame, the inner wall of the assembly frame is slidably connected to an L-shaped frame, and the surface of the L-shaped frame is fixedly connected to an arc plate; The side surface of the assembly frame is rotatably connected to a turntable, and the L-shaped frame is slidably connected to the inner wall of the turntable. The surface of the turntable is fixedly connected to a driven wheel, and the surface of the assembly frame is fixedly connected to a buckle cover, and the surface of the buckle cover is fixedly connected to motor three. The driving shaft of motor three is fixedly connected to a driving wheel, and the driving wheel is meshed with the tooth groove of the driven wheel. The inner wall of the assembly frame is fixedly connected to a suction nozzle, and the inner wall of the frame two is fixedly connected to an air pump, and the output end of the air pump is fixedly connected to a telescopic bellows, and the telescopic bellows is fixedly connected to the interface of the suction nozzle. By utilizing the linkage effect of the turntable, all the L-shaped frames on the assembly frame can be driven to move during the driven rotation, thereby realizing the clamping of the arc plate on the opening part of the packaging bag.

[0010] Preferably, a rubber pad is fixedly connected to the inner wall of the arc plate, which can increase the friction coefficient of the contact position between the arc plate and the packaging bag, thereby increasing the clamping effect of the arc plate on the packaging bag, to ensure that the arc plate can firmly clamp the opening of the packaging bag on the suction nozzle.

[0011] Preferably, the assembly frame is slidingly connected to the surface of the second clamping plate, the width of the assembly frame is equal to the width of the second clamping plate, the buckle cover is sleeved on the surface of the driven wheel, the buckle cover is sleeved on the surface of the driving wheel, and the suction nozzle is fixedly connected to the inner wall of the buckle cover. The buckle cover can be used to protect the driving wheel and the driven wheel to ensure the safety of the driving wheel and the driven wheel during the meshing process, and at the same time can isolate the meshing part from interference from the external environment, thereby increasing the stability of the driving wheel and the driven wheel in the running state.

[0012] Preferably, the surface of the second frame is provided with a material unloading assisting device, and the material unloading assisting device includes a support plate, the support plate is fixedly connected to the side surface of the second frame, the surface of the support plate is fixedly connected to the second cylinder, the piston rod of the second cylinder is fixedly connected to the push plate, the lower surface of the push plate is fixedly connected to the combining frame, the surface of the placement plate is provided with a sliding hole, the combining frame is slidably connected to the inner wall of the sliding hole, the side of the combining frame away from the push plate is fixedly connected to a partition, the partition is located above the conveyor belt, and the surface of the first frame is fixedly connected to the carrying plate; A U-shaped frame is fixedly connected to the surface of the frame two, a motor four is fixedly connected to the surface of the U-shaped frame, a rotating shaft is fixedly connected to the driving shaft of the motor four, a transmission wheel is fixedly connected to the surface of the rotating shaft, a shielding frame is slidably connected to the surface of the frame two, a surface of the shielding frame is provided with convex teeth, and the convex teeth are engaged with the tooth grooves of the transmission wheel. By utilizing the support plate and the shielding frame in the expanded state, the sofa placed on the placement plate can be restricted on the left and right sides of the placement plate, thereby further confining the sofa within the processing area.

[0013] Preferably, a protective cover is fixedly connected to the surface of the shielding frame, the rotating shaft is slidably connected to the inner wall of the protective cover, and the protective cover is movably abutted against the surface of the U-shaped frame. The protective cover can shield the meshing portion of the transmission wheel and the shielding frame to reduce the chance of interference from external environmental factors during the meshing process and improve the safety during meshing.

[0014] Preferably, the number of the U-shaped frames is two, and the two U-shaped frames are arranged in a mirror image with the vertical center line of the rotating shaft as the mirror axis. The rotating shaft is rotatably connected to the inner wall of the U-shaped frame, and the position of the rotating shaft can be supported by the U-shaped frame to ensure that the rotating shaft can disperse the force applied to it on the U-shaped frame, while ensuring the stability of the rotating shaft.

[0015] In summary, the technical effects and advantages of the present invention are as follows: 1. The present invention utilizes a folding mechanism comprised of Motor 2, Gear 1, Gear 2, a connecting frame, a limiting shaft, and first and second clamping plates to create an automated folding system for the compressed sofa. After the sofa is placed and vacuumed, Motor 2 drives Gear 1 to engage Gear 2, driving the connecting frames on both sides of Frame 2 to rotate along the limiting shafts, causing the first and second clamping plates to move toward each other, automatically folding and reshaping the compressed sofa. This mechanism automates the folding process through mechanical transmission, replacing the traditional manual folding process. This eliminates the physical strain and efficiency fluctuations associated with manual operation and prevents manual intervention from interfering with the post-vacuum and compressed sofa shape. The synchronized, opposite-direction movement of the clamping plates ensures uniform folding force and precise angles, and, in conjunction with the initial vacuum and compression effects, creates a stable folded shape. This reduces rework caused by improper manual folding and seamlessly connects the packaging process from vacuuming to folding to packaging, significantly improving the overall efficiency and automation level of the packaging machine.

[0016] 2. The present invention utilizes an auxiliary device consisting of a curved plate, rubber pad, suction nozzle, air pump, telescopic bellows, Motor 3, a turntable, an L-shaped frame, Cylinder 1, and an assembly frame to create an integrated "clamping-evacuation-compression" system for sofa packaging. During transport, Motor 3 drives the turntable, which in turn drives the L-shaped frame to push the curved plate and rubber pad, precisely clamping the bag opening against the suction nozzle to form a sealed extraction channel. The air pump simultaneously extracts air from the bag through the telescopic bellows and suction nozzle, naturally compressing the sofa using the air pressure differential, eliminating the need for manual intervention in the extraction process. After five minutes of extraction, the folding device activates, and Cylinder 1 drives the assembly frame downward to compress the sofa. This, combined with the air pump's continuous extraction, achieves a dual compression mechanism of "mechanical compression + vacuum extraction," further reducing the sofa's volume. This design automatically completes the packaging bag clamping and vacuuming actions through a mechanical structure, replacing the tedious operation of manually holding the vacuum equipment and eliminating the efficiency differences and physical exertion of manual vacuuming; the synchronous compression mechanism connects the vacuuming and folding and squeezing processes, reducing the time occupied by the separate vacuuming link, significantly improving the continuous operation efficiency of the packaging equipment, and is especially suitable for the efficient packaging needs of fluffy items such as large sofas.

[0017] 3. In the present invention, an unloading assist device consisting of motor 4, a transmission wheel, a shielding frame, a protective cover, cylinder 2, a push plate, a coupling frame, a partition, motor 3, a turntable, an L-shaped frame, a curved plate, motor 1, and a conveyor belt is provided to construct an automated packaging and conveying system for the compressed sofa: after the equipment completes folding and compression, motor 4 drives the transmission wheel to drive the shielding frame and the protective cover to move downward and open, and cylinder 2 then drives the push plate to push the compressed sofa along the guide into the packaging carton; when half of the volume of the sofa is in the box, motor 3 drives the turntable to drive the curved plate to reset and release the packaging bag clamping, ensuring that the sofa is completely placed in the carton; during the movement of the push plate, the partition is synchronously driven by the coupling frame to separate from the conveyor belt, thereby releasing the obstruction to the carton, and finally motor 1 drives the conveyor belt to transport the packaged carton to the next area. The device achieves the precise insertion of the compressed sofa into the packaging structure and the automated connection of the packaging operation through the continuous actions of "opening and closing the shielding frame → pushing in sections → releasing the packaging bag → automatic transfer", replacing the tedious process of traditional manual handling into boxes, ensuring that the sofa enters the packaging structure smoothly in a compressed state, improving the continuity and efficiency of the packaging operation, and at the same time reducing the problems of packaging dislocation or sofa displacement caused by manual intervention through the precise coordination of the mechanical structure, thereby ensuring the stability of the packaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a fully automatic special machine for packing sofas according to the present invention; Figure 2 This invention is a sofa packaging fully automatic special machine Figure 1 Schematic diagram of the structure at A in the middle; Figure 3This is a side structural diagram of a fully automatic machine for packing sofas according to the present invention; Figure 4 This is a front view of a fully automatic special machine for packing sofas according to the present invention; Figure 5 This is a structural schematic diagram of a folding device of a fully automatic special machine for sofa packaging according to the present invention; Figure 6 This is a structural schematic diagram of a folding device of a fully automatic special machine for sofa packaging in the present invention in a folded state; Figure 7 This invention is a sofa packaging fully automatic special machine Figure 6 Schematic diagram of the structure at B in the middle; Figure 8 This is a structural schematic diagram of the auxiliary device of a fully automatic special machine for sofa packaging according to the present invention; Figure 9 This invention is a sofa packaging fully automatic special machine Figure 8 Schematic diagram of the structure at C in the middle; Figure 10 This is a schematic diagram of the structure of the auxiliary device of a fully automatic special machine for sofa packaging in an upward-looking state; Figure 11 This is a schematic structural diagram of the auxiliary device portion of a fully automatic special machine for sofa packaging according to the present invention; Figure 12 This is a structural schematic diagram of a material unloading assisting device of a fully automatic special machine for sofa packaging according to the present invention; Figure 13 This is a partial structural diagram of the unloading assisting device of a fully automatic special machine for sofa packaging of the present invention; Figure 14 This invention is a sofa packaging fully automatic special machine Figure 13 A partial structural front view; Figure 15 It is a schematic diagram of the operation process of the present invention.

[0019] In the figure: 1. Frame 1; 2. Motor 1; 3. Conveyor belt; 4. Packing carton; 5. Frame 2; 6. Folding device; 61. Placement plate; 62. Mounting frame; 63. Motor 2; 64. Gear 1; 65. Limiting shaft; 66. Connecting frame; 67. Gear 2; 68. First clamping plate; 59. Second clamping plate; 610. Baffle; 611. Protective cover; 7. Auxiliary device; 71. Cylinder 1; 72. Linkage frame; 73. Assembly frame; 74. L-shaped frame; 75. Curved plate; 76. Rubber pad; 77. Turntable; 78. Driven wheel; 79. Buckle cover; 710. Motor 3; 711. Drive wheel; 712. Suction nozzle; 713. Air pump; 714. Telescopic bellows; 8. Material unloading assist device; 81. Support plate; 82. Cylinder 2; 83. Push plate; 84. Combination frame; 85. Partition plate; 86. Load-bearing plate; 87. U-shaped frame; 88. Motor 4; 89. Rotating shaft; 810. Transmission wheel; 811. Shielding frame; 812. Protective cover. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] refer to Figures 1-15 The illustrated fully automatic machine for sofa packaging comprises a frame 1, a motor 2, a conveyor belt 3, packaging cartons 4, and a frame 2 5. The motor 2 is mounted on the side surface of the frame 1, and the drive shaft of the motor 2 is fixedly connected to the transmission shaft inside the frame 1. The conveyor belt 3 is mounted on the inner wall of the frame 1, and the packaging cartons 4 are placed on the upper surface of the conveyor belt 3. The frame 2 5 is disposed on the right side of the frame 1, and a folding device 6 is provided on the surface of the frame 2 5. The folding device 6 includes a placement plate 61, which is fixedly connected to the upper surface of the frame 2 5. The side surface of the frame 2 5 is fixedly connected to a mounting frame 62. The inner side of the mounting frame 62 is fixedly connected to the motor 2 63. The drive shaft of the motor 2 63 is fixedly connected to the gear 1 64. The inner wall of the frame 2 5 is rotatably connected to the limit shaft 65. The surface of the limit shaft 65 is fixedly connected to the connecting frame 66. The side of the connecting frame 66 away from the limit shaft 65 is fixedly connected to the gear 2 67. The gear 2 67 is meshed with the tooth groove of the gear 1 64. The surface of the front connecting frame 66 is fixedly connected to the first clamping plate 68, and the surface of the rear connecting frame 66 is fixedly connected to the second clamping plate 59. The surface of the second clamping plate 59 is provided with an auxiliary device 7 for extracting air from the packaging bag.

[0022] Among them, the side surfaces of the first plywood 68 and the second plywood 59 are fixedly connected with a baffle 610, and the surfaces of the first plywood 68 and the second plywood 59 can be provided with an installation cavity. The first plywood 68 and the second plywood 59 are located on the inner wall of the installation cavity to install a sofa in place sensor. The baffle 610 can be used to form a certain shielding structure at the edge of the first plywood 68 and the second plywood 59 to block the sofa placed on the first plywood 68 and the second plywood 59, thereby reducing the probability of the sofa deviating from the effective working area of ​​the first plywood 68 and the second plywood 59 during the placement process.

[0023] Among them, the surface of the mounting frame 62 is fixedly connected with a protective cover 611, and the protective cover 611 is movably abutted against the surface of the connecting frame 66. The protective cover 611 is sleeved on the surface of gear one 64, and the protective cover 611 is sleeved on the surface of gear two 67. The driving shaft of motor two 63 is inserted into the inner wall of the protective cover 611. The protective cover 611 can be used to protect the meshing part of gear one 64 and gear two 67 to reduce the exposure of gear one 64 and gear two 67, resulting in the probability of external dust and the like entering the meshing part, and further ensure the safety of gear one 64 and gear two 67 in the working state.

[0024] Among them, the first plywood 68 is arranged in an arc shape on the side close to the placement plate 61, and the second plywood 59 is arranged in an arc shape on the side close to the placement plate 61. The length of the second plywood 59 is longer than the first plywood 68. By utilizing the flipping effect of the first plywood 68 and the second plywood 59, the sofa can be automatically bent and compressed during the packing process to reduce the operation probability of the staff, thereby increasing the packing efficiency of the sofa.

[0025] The auxiliary device 7 includes a cylinder 71, which is fixedly connected to the lower surface of the second clamping plate 59. A square hole is opened on the surface of the second clamping plate 59. The inner wall of the second clamping plate 59 located in the square hole is slidably connected to a linkage frame 72. The piston rod of the cylinder is fixedly connected to the side surface of the linkage frame 72. The upper surface of the linkage frame 72 is fixedly connected to an assembly frame 73. The inner wall of the assembly frame 73 is slidably connected to an L-shaped frame 74. The surface of the L-shaped frame 74 is fixedly connected to an arc plate 75. The side surface of the assembly frame 73 is rotatably connected to a turntable 77, and the L-shaped frame 74 is slidably connected to the inner wall of the turntable 77. The surface of the turntable 77 is fixedly connected to a driven wheel 78. The surface of the assembly frame 73 is fixedly connected to a buckle cover 79, and the surface of the buckle cover 79 is fixedly connected to a motor three 710. The driving shaft of the motor three 710 is fixedly connected to a driving wheel 711, and the driving wheel 711 engages with the tooth groove of the driven wheel 78. The inner wall of the assembly frame 73 is fixedly connected to a suction nozzle 712, and the inner wall of the frame two 5 is fixedly connected to an air pump 713. The output end of the air pump 713 is fixedly connected to a telescopic bellows 714, and the telescopic bellows 714 is fixedly connected to the interface of the suction nozzle 712. By utilizing the linkage effect of the turntable 77, all the L-shaped frames 74 on the assembly frame 73 can be driven to move during the driven rotation process, thereby realizing the clamping of the arc plate 75 on the opening part of the packaging bag.

[0026] Among them, the inner wall of the arc plate 75 is fixedly connected with a rubber pad 76, which can increase the friction coefficient of the contact position between the arc plate 75 and the packaging bag, thereby increasing the clamping effect of the arc plate 75 on the packaging bag, to ensure that the arc plate 75 can firmly clamp the opening of the packaging bag on the suction nozzle 712.

[0027] Among them, the assembly frame 73 is slidingly connected to the surface of the second clamping plate 59, the width of the assembly frame 73 is equal to the width of the second clamping plate 59, the buckle cover 79 is sleeved on the surface of the driven wheel 78, the buckle cover 79 is sleeved on the surface of the driving wheel 711, and the suction nozzle 712 is fixedly connected to the inner wall of the buckle cover 79. The buckle cover 79 can be used to protect the driving wheel 711 and the driven wheel 78 to ensure the safety of the driving wheel 711 and the driven wheel 78 during the meshing process, and at the same time, it can isolate the interference of the external environment on the meshing part, thereby increasing the stability of the driving wheel 711 and the driven wheel 78 in the running state.

[0028] Among them, the surface of the frame 2 5 is provided with a material unloading assisting device 8, which includes a support plate 81, which is fixedly connected to the side surface of the frame 2 5, and the surface of the support plate 81 is fixedly connected to the cylinder 2 82, and the piston rod of the cylinder 2 82 is fixedly connected to the push plate 83, and the lower surface of the push plate 83 is fixedly connected to the coupling frame 84, and the surface of the placement plate 61 is provided with a sliding hole, and the coupling frame 84 is slidably connected to the inner wall of the sliding hole, and the side of the coupling frame 84 away from the push plate 83 is fixedly connected to a partition plate 85, and the partition plate 85 is located above the conveyor belt 3, and the surface of the frame 1 is fixedly connected to a bearing plate 86; A U-shaped frame 87 is fixedly connected to the surface of the frame 2 5, a motor 4 88 is fixedly connected to the surface of the U-shaped frame 87, a rotating shaft 89 is fixedly connected to the driving shaft of the motor 4 88, a transmission wheel 810 is fixedly connected to the surface of the rotating shaft 89, a shielding frame 811 is slidably connected to the surface of the frame 2 5, and a convex tooth is provided on the surface of the shielding frame 811, which engages with the tooth groove of the transmission wheel 810. By utilizing the support plate 81 and the shielding frame 811 in the expanded state, the sofa placed on the placement plate 61 can be restricted on the left and right sides of the placement plate 61, thereby further confining the sofa within the processing area.

[0029] Among them, a protective cover 812 is fixedly connected to the surface of the shielding frame 811, the rotating shaft 89 is slidably connected to the inner wall of the protective cover 812, and the protective cover 812 is movably abutted against the surface of the U-shaped frame 87. The protective cover 812 can shield the meshing part of the transmission wheel 810 and the shielding frame 811 to reduce the chance of interference from external environmental factors during the meshing process and improve the safety during meshing.

[0030] Among them, there are two U-shaped frames 87, and the two U-shaped frames 87 are mirror-imaged with the vertical center line of the rotating shaft 89 as the mirror axis. The rotating shaft 89 is rotatably connected to the inner wall of the U-shaped frame 87. The position of the rotating shaft 89 can be supported by the U-shaped frame 87 to ensure that the rotating shaft 89 can disperse the force applied to it on the U-shaped frame 87, while ensuring the stability of the rotating shaft 89.

[0031] Working principle of the present invention: When packing sofas, the robot or conveyor belt 3 transports the compressible and bagged sofas to the unfolded first clamping plate 68, the placement plate 61, and the second clamping plate 59. At the same time, the conveyor belt 3, under the action of the motor 2 and the frame 1, transports the packaging carton 4 to the preset packing position. During transportation, align the opening of the packaging bag containing the sofa with the auxiliary device 7. When the sofa is completely delivered to the top of the placement plate 61, the first clamping plate 68 and the second clamping plate 59, the sofa arrival sensor senses that the sofa is in place. At the same time, the opening of the packaging bag enters the clamping area of ​​the arc plate 75, and the suction nozzle 712 is inserted into the opening of the packaging bag. At this time, the motor 3 710 works to cooperate with the driving wheel 711 to rotate the driven wheel 78. Under the action of the driving wheel 711, the driven wheel 78 drives the turntable 77 to rotate. During the rotation process, the turntable 77 pushes the L-shaped frame 74, and the L-shaped frame 7 Under the guidance of the assembly frame 73, it moves in the specified direction and pushes the curved plate 75 and rubber pad 76 to move. During the movement, the curved plate 75 and rubber pad 76 close the opening of the packaging bag and move it closer to the suction nozzle 712. When the curved plate 75 and rubber pad 76 move to the maximum distance, the curved plate 75 and rubber pad 76 clamp the opening of the packaging bag on the suction nozzle 712. At this time, the air pump 713 works in conjunction with the telescopic bellows 714 and the suction nozzle 712 to extract the air in the packaging bag. As the air is extracted from the packaging bag, the volume of the sofa is gradually compressed. After the air pump 713 has been working for 5 minutes, the folding device 6 will work and fold the compressed sofa. At this time, the second splint 59 will drive the assembly frame 73 to move. When the second splint 59 completes its rotation and is in the shielding state, the assembly frame 73 will be moved to the top of the placement plate 61. At the same time, the cylinder 1 71 works in conjunction with the linkage frame 72 to pull the assembly frame 73. The assembly frame 73 moves in the vertical direction and squeezes the sofa downward. During the process of the assembly frame 73 squeezing the sofa, the air pump 713 cooperates with the suction nozzle 712 and the telescopic bellows 714 to continuously extract the gas in the packaging bag to further compress the volume of the sofa. By providing the auxiliary device 7, the mechanical structure is used to automatically complete the packaging bag clamping and air pumping actions, replacing the tedious operation of manual hand-held air pumping equipment, eliminating the efficiency difference and physical exertion of manual air pumping. The synchronous compression mechanism connects the air pumping and folding and squeezing processes, reducing the time occupied by the separate air pumping link, and significantly improving the continuous operation efficiency of the packaging equipment, which is particularly suitable for the efficient packaging needs of fluffy items such as large sofas. In addition, when the sofa is placed and the air extraction operation has been carried out, the motor 2 63 is energized to drive the gear 1 64. The gear 1 64 drives the gear 2 67 under the action of the motor 2 63. The gear 2 67 rotates the connecting frame 66. The connecting frame 66 located on both sides of the frame 2 5 rotates the first clamping plate 68 and the second clamping plate 59 respectively in the specified direction under the guidance of the limit shaft 65. The first clamping plate 68 and the second clamping plate 59 move toward each other during the rotation and fold the sofa placed above them. By providing the folding device 6, the folding action is automated by mechanical transmission, replacing the traditional manual folding process, eliminating the physical burden and efficiency fluctuations caused by manual operation, and avoiding the interference of manual intervention on the shape of the sofa after air extraction and compression. The synchronous opposite movement of the clamping plates ensures uniform folding force and precise angle, and forms a stable folded shape in combination with the early air extraction and compression effect, reducing the rework problem caused by improper manual folding, making the packaging process from "air extraction-folding-packing" coherent, and significantly improving the overall operation efficiency and automation level of the packaging machine. When the device completes the folding and compression of the sofa, the device controls the first splint 68 to reset, and synchronously controls the motor 4 88 to work. The motor 4 88 cooperates with the rotating shaft 89 to rotate the transmission wheel 810. The transmission wheel 810 engages with the convex teeth on the shielding frame 811 and cooperates with the convex teeth on the shielding frame 811 to push the shielding frame 811 downward. Under the action of the transmission wheel 810 and the convex teeth, the shielding frame 811 drives the protective cover 812 to move. When the shielding frame 811 is fully opened, the cylinder 2 82 is energized to work and push the pusher. Plate 83, the push plate 83 pushes the compressed sofa, the sofa moves along the pushing direction of the push plate 83, and is pushed into the packaging carton 4. When half of the volume of the sofa is pushed into the packaging carton 4, the motor 3 710 works, cooperates with the driving wheel 711 and the driven wheel 78 to rotate the turntable 77, and the turntable 77 drives the L-shaped frame 74 to move the curved plate 75 to reset. The curved plate 75 resets and stops clamping the packaging bag. At this time, the cylinder 2 82 continues to work, and cooperates with the push plate 83 to push the sofa completely into the packaging carton 4. During the movement of the push plate 83, the push plate 83 cooperates with the coupling frame 84 to push the partition 85, and the partition 85 gradually leaves the conveyor belt 3. When the sofa is completely entered into the packaging carton 4, the partition 85 is completely separated from the conveyor belt 3 and stops blocking the packaging carton 4. At this time, the motor 2 starts working again and cooperates with the frame 1 and the conveyor belt 3 to move the packaging carton 4 containing the sofa to the next area; after the packaged sofa is transported to the next area, the equipment can reset the entire structure and carry out the next packaging operation. By setting the unloading assisting device 8 and utilizing the continuous action of "blocking frame 811 opening and closing → segmented pushing → packaging bag release → automatic transfer", the compressed sofa is accurately pushed into the packaging structure and the packaging operation is automatically connected, replacing the tedious process of traditional manual handling into the box, ensuring that the sofa enters the packaging structure smoothly in a compressed state, improving the continuity and efficiency of the packaging operation, and at the same time reducing the packaging dislocation or sofa displacement caused by manual intervention through the precise coordination of the mechanical structure, thereby ensuring the stability of the packaging quality.

[0032] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device such as a computer for control. At the same time, the structure of the conveying sofa appearing in this article is not limited to a robot or a conveyor belt. When in use, conventional conveying means known in the market can be selected according to the actual environment.

Claims

1. A fully automatic machine for sofa packaging, characterized by: The sofa packaging fully automatic special machine comprises a frame (1), a motor (2), a conveyor belt (3), a packaging carton (4) and a frame (5), wherein the motor (2) is mounted on the side surface of the frame (1), the driving shaft of the motor (2) is fixedly connected to the transmission shaft inside the frame (1), the conveyor belt (3) is mounted on the inner wall of the frame (1), the packaging carton (4) is placed on the upper surface of the conveyor belt (3), the frame (5) is arranged on the right side of the frame (1), and the surface of the frame (5) is provided with a folding device (6); The folding device (6) includes a placement plate (61), the placement plate (61) is fixedly connected to the upper surface of the frame 2 (5), the side surface of the frame 2 (5) is fixedly connected to the mounting frame (62), the inner side of the mounting frame (62) is fixedly connected to the motor 2 (63), the driving shaft of the motor 2 (63) is fixedly connected to the gear 1 (64), the inner wall of the frame 2 (5) is rotatably connected to the limit shaft (65), the surface of the limit shaft (65) is fixedly connected to the connecting frame (66), the side of the connecting frame (66) away from the limit shaft (65) is fixedly connected to the gear 2 (67), the gear 2 (67) is meshed with the tooth groove of the gear 1 (64), the surface of the connecting frame (66) at the front end is fixedly connected to the first clamping plate (68), and the surface of the connecting frame (66) at the rear end is fixedly connected to the second clamping plate (59); An auxiliary device (7) for extracting air from the packaging bag is provided on the surface of the second clamping plate (59).

2. The fully automatic sofa packaging machine according to claim 1, characterized in that: The side surfaces of the first clamping plate (68) and the second clamping plate (59) are both fixedly connected with a baffle (610).

3. The fully automatic sofa packaging machine according to claim 1, characterized in that: The surface of the mounting frame (62) is fixedly connected to a protective cover (611), the protective cover (611) is movably abutted against the surface of the connecting frame (66), the protective cover (611) is sleeved on the surface of gear one (64), the protective cover (611) is sleeved on the surface of gear two (67), and the driving shaft of motor two (63) is inserted into the inner wall of the protective cover (611).

4. The fully automatic sofa packaging machine according to claim 1, characterized in that: The first clamping plate (68) is arranged in an arc shape on one side close to the placement plate (61), and the second clamping plate (59) is arranged in an arc shape on one side close to the placement plate (61). The length of the second clamping plate (59) is longer than that of the first clamping plate (68).

5. The fully automatic sofa packaging machine according to claim 1, characterized in that: The auxiliary device (7) includes a cylinder (71), the cylinder (71) is fixedly connected to the lower surface of the second clamping plate (59), the surface of the second clamping plate (59) is provided with a square hole, the second clamping plate (59) is located on the inner wall of the square hole and is slidably connected to a linkage frame (72), the piston rod of the cylinder is fixedly connected to the side surface of the linkage frame (72), the upper surface of the linkage frame (72) is fixedly connected to an assembly frame (73), the inner wall of the assembly frame (73) is slidably connected to an L-shaped frame (74), and the surface of the L-shaped frame (74) is fixedly connected to an arc plate (75); The side surface of the assembly frame (73) is rotatably connected to a turntable (77), the L-shaped frame (74) is slidably connected to the inner wall of the turntable (77), the surface of the turntable (77) is fixedly connected to a driven wheel (78), the surface of the assembly frame (73) is fixedly connected to a buckle cover (79), the surface of the buckle cover (79) is fixedly connected to a motor three (710), the drive shaft of the motor three (710) is fixedly connected to a driving wheel (711), the driving wheel (711) is meshed with the tooth groove of the driven wheel (78), the inner wall of the assembly frame (73) is fixedly connected to a suction nozzle (712), the inner wall of the frame two (5) is fixedly connected to an air pump (713), the output end of the air pump (713) is fixedly connected to a telescopic bellows (714), and the telescopic bellows (714) is fixedly connected to the interface of the suction nozzle (712).

6. The fully automatic sofa packaging machine according to claim 5, characterized in that: A rubber pad (76) is fixedly connected to the inner wall of the arc-shaped plate (75).

7. The fully automatic sofa packaging machine according to claim 5, characterized in that: The assembly frame (73) is slidably connected to the surface of the second clamping plate (59), the width of the assembly frame (73) is equal to the width of the second clamping plate (59), the buckle cover (79) is sleeved on the surface of the driven wheel (78), the buckle cover (79) is sleeved on the surface of the driving wheel (711), and the suction nozzle (712) is fixedly connected to the inner wall of the buckle cover (79).

8. The fully automatic sofa packaging machine according to claim 1, characterized in that: The surface of the frame 2 (5) is provided with a material unloading assisting device (8), and the material unloading assisting device (8) includes a support plate (81), the support plate (81) is fixedly connected to the side surface of the frame 2 (5), the surface of the support plate (81) is fixedly connected to the cylinder 2 (82), the piston rod of the cylinder 2 (82) is fixedly connected to a push plate (83), the lower surface of the push plate (83) is fixedly connected to a coupling frame (84), the surface of the placement plate (61) is provided with a sliding hole, the coupling frame (84) is slidably connected to the inner wall of the sliding hole, the side of the coupling frame (84) away from the push plate (83) is fixedly connected to a partition (85), the partition (85) is located above the conveyor belt (3), and the surface of the frame 1 (1) is fixedly connected to a bearing plate (86); The surface of the frame 2 (5) is fixedly connected to a U-shaped frame (87), the surface of the U-shaped frame (87) is fixedly connected to a motor 4 (88), the driving shaft of the motor 4 (88) is fixedly connected to a rotating shaft (89), the surface of the rotating shaft (89) is fixedly connected to a transmission wheel (810), the surface of the frame 2 (5) is slidably connected to a shielding frame (811), the surface of the shielding frame (811) is provided with convex teeth, and the convex teeth are engaged with the tooth grooves of the transmission wheel (810).

9. The fully automatic sofa packaging machine according to claim 8, characterized in that: A protective cover (812) is fixedly connected to the surface of the shielding frame (811), the rotating shaft (89) is slidably connected to the inner wall of the protective cover (812), and the protective cover (812) is movably abutted against the surface of the U-shaped frame (87).

10. The fully automatic sofa packaging machine according to claim 8, characterized in that: The number of the U-shaped frames (87) is two, and the two U-shaped frames (87) are arranged in an axial mirror image with the vertical center line of the rotating shaft (89) as the mirror axis, and the rotating shaft (89) is rotatably connected to the inner wall of the U-shaped frame (87).

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