A packaging machine

Abstract

This invention discloses a packaging machine, comprising a frame, a paper feeding device, and a paper folding device. The paper feeding device is used to convey packaging paper to the paper folding device. The paper folding device includes a paper folding mechanism, a first pressing mechanism, a second pressing mechanism, and a rotating output mechanism. The first pressing mechanism is used to press a cookware through the paper folding mechanism to the rotating output mechanism. The paper folding mechanism is used to wrap the packaging paper around the outer periphery of the cookware and gather the upper end of the packaging paper to close it. The rotating output mechanism is used to drive the cookware to rotate so that the upper end of the packaging paper is spirally closed. The machine is also used to convey the cookware with the spirally closed upper end of the packaging paper to the second pressing mechanism, which presses the closed upper end of the packaging paper into the interior of the cookware. Using this invention can improve the efficiency of cookware packaging and ensure the quality of cookware packaging.

Description

Technical Field

[0001] This invention belongs to the field of automated packaging technology, and specifically relates to a packaging machine. Background Technology

[0002] Cookware is a necessity in every household. Common cookware on the market is simply wrapped in packaging bags and then sealed in packaging boxes. In order to avoid machine damage to cookware, manual packaging is often used. However, manual packaging can no longer meet the needs of modern production. There is a lack of packaging machines specifically designed for cookware packaging in the current technology, and manual packaging can no longer meet the needs of modern production, resulting in low packaging efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a packaging machine that can effectively solve the problem of low packaging efficiency in the existing technology, which cannot meet the needs of modern production.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] A packaging machine includes a frame, a paper feeding device, and a paper folding device. Both the paper feeding device and the paper folding device are mounted on the frame. The paper feeding device conveys packaging paper to the paper folding device. The paper folding device includes a folding mechanism, a first pressing mechanism, a second pressing mechanism, and a rotating output mechanism. The first pressing mechanism is located above the paper folding mechanism, and the rotating output mechanism is located below the paper folding mechanism. The first pressing mechanism presses a pot through the paper folding mechanism to the rotating output mechanism. The paper folding mechanism wraps the packaging paper around the outer periphery of the pot and gathers the upper end of the packaging paper to close it. The rotating output mechanism rotates the pot so that the upper end of the packaging paper forms a spiral closing shape. The machine also conveys the pot with the spiral closing at the upper end of the packaging paper to the second pressing mechanism, which presses the closed packaging paper into the pot.

[0006] As a preferred embodiment of the present invention, the paper feeding device includes a lifting mechanism and a conveying mechanism. The lifting mechanism includes a transmission component and a first motor. Two transmission components are provided and symmetrically arranged on the left and right sides of the frame. A support plate is connected between the two transmission components. The first motor is connected to the transmission components and drives the support plate to move up and down through the transmission components. The conveying mechanism is located above the transmission components. The conveying mechanism includes a mounting component, a first cylinder, a second cylinder, a movable component, a mounting rod, and a first suction cup. The mounting component is fixedly arranged on the frame. The first cylinder is arranged on the mounting component. The telescopic end of the first cylinder is fixedly connected to the movable component and is used to drive the movable component to move in the front-back direction. The second cylinder is arranged on the movable component. The telescopic end of the second cylinder is fixedly connected to the mounting rod and is used to drive the mounting rod to move in the up-down direction. Multiple first suction cups are provided and are all installed on the mounting rod. The multiple first suction cups are evenly spaced. The first suction cups are externally connected to a vacuum pump.

[0007] As a preferred embodiment of the present invention, the mounting component is provided with a first guide assembly. Two first guide assemblies are provided and respectively disposed at the left and right ends of the first cylinder. Each first guide assembly includes a first fixed rod and a first movable rod. The first fixed rod is fixedly disposed on the mounting component, and the first movable rod is movably inserted into the first fixed rod. One end of the first movable rod is fixedly connected to the movable component. The movable component is provided with a second guide assembly. Two second guide assemblies are provided and respectively located at the left and right ends of the second cylinder. Each second guide assembly includes a second fixed rod and a second movable rod. The second fixed rod is fixedly disposed on the movable component, and the second movable rod is movably inserted into the second fixed rod. One end of the second movable rod is fixedly connected to the mounting rod.

[0008] As a preferred embodiment of the present invention, the transmission assembly includes a first gear pair, a transmission shaft, a second gear pair, a lead screw and nut pair, a first linear guide pair, and a support member. The first motor is connected to the transmission shaft through the first gear pair and is used to drive the transmission shaft to rotate. Two second gear pairs are provided and are respectively arranged at the left and right ends of the transmission shaft. The driven bevel gear of the second gear pair is connected to the lead screw of the lead screw and nut pair. The guide rail of the first linear guide pair is vertically fixed on the frame. The lead screw of the lead screw and nut pair is arranged parallel to the guide rail of the first linear guide pair. The nut of the lead screw and nut pair is fixedly connected to the slider of the first linear guide pair. The support member is fixed on the slider of the first linear guide pair, and the support plate is fixed on the support member.

[0009] As a preferred embodiment of the present invention, the frame is provided with two guide limiting components for limiting paper sway, and the guide limiting components are adjustable left and right on the frame.

[0010] In a preferred embodiment of the present invention, the folding mechanism includes a folding table and a paper clamp. The paper clamp is installed below the folding table and includes a top plate, blades, a turntable, and a second motor. The top plate and the turntable are coaxially arranged. Multiple blades are provided and located between the top plate and the turntable. The power output end of the second motor is connected to the turntable and is used to drive the blades to rotate. When the turntable rotates to a first angle, the blades are in a retracted state and are hidden between the top plate and the turntable, forming a through hole between the top plate and the turntable for a cookware to pass through. When the turntable rotates to a second angle, the blades are in an extended state, extending out of the through hole and forming a gathering opening at its center for closing the packaging paper. The folding table has a notch opposite to the through hole.

[0011] As a preferred embodiment of the present invention, the first pressing mechanism includes a first mounting frame, a second mounting frame, a third cylinder, and a fourth cylinder. The first mounting frame is fixedly disposed at the upper end of the frame. A second linear guide rail pair is provided on the first mounting frame. The guide rail of the second linear guide rail pair is fixed on the first mounting frame and arranged in the vertical direction. The second mounting frame is fixedly connected to the slider of the second linear guide rail pair. The third cylinder is disposed on the first mounting frame. The telescopic end of the third cylinder is connected to the slider of the second linear guide rail pair and is used to drive the second mounting frame to move up and down. The fourth cylinder is mounted on the second mounting frame. The telescopic end of the fourth cylinder faces downward and is opposite to the center of the through hole. A second suction cup is provided on the telescopic end of the fourth cylinder. The second suction cup is externally connected to a vacuum pump.

[0012] In a preferred embodiment of the present invention, the rotary output mechanism includes a conveying assembly and a rotating assembly. The conveying assembly is disposed below the paper clamp, and the rotating assembly is disposed on the input end of the conveying assembly. The rotating assembly includes a fixed frame, an adjusting frame, a drive wheel, a rotating shaft, a guide wheel, a third motor, a third linear guide pair, and a fifth cylinder. The fixed frame is fixedly disposed on the machine frame, and the guide rail of the third linear guide pair is fixedly disposed on the machine frame. The slider of the third linear guide pair is fixedly connected to the adjusting frame, and the telescopic end of the fifth cylinder is fixedly connected to the adjusting frame and is used to drive the adjusting frame. The movable frame, the fixed frame and the adjusting frame are arranged at intervals, and both the fixed frame and the adjusting frame are located below the paper clamp. The drive wheel is fixedly mounted on the rotating shaft, and the rotating shaft is rotatably mounted on the fixed frame. A drive wheel is fixedly mounted on the power output end of the third motor, and a driven wheel is fixedly mounted on the rotating shaft. The drive wheel is connected to the driven wheel via a belt. The power output end of the third motor drives the rotating shaft to rotate, thereby driving the drive wheel to rotate. Both the fixed frame and the adjusting frame are equipped with guide wheels, and both the drive wheel and the guide wheel can abut against the outer peripheral side wall of the pot.

[0013] As a preferred embodiment of the present invention, the second pressing mechanism includes a third mounting bracket and a sixth cylinder. The third mounting bracket is fixed on the output end of the conveying assembly, and the sixth cylinder is mounted on the third mounting bracket with its power output end facing downward.

[0014] As a preferred embodiment of the present invention, the frame is provided with a placement rack for placing cookware and a fourth motor. There are two placement racks arranged opposite each other. The frame is provided with a third linear guide pair. The guide rail of the third linear guide pair is fixed on the frame and arranged in a left-right direction. The placement rack is fixedly connected to the slider of the third linear guide pair. The power output end of the fourth motor is fixedly connected to the slider of the third linear guide pair and is used to drive the placement rack to move left and right.

[0015] The advantages of implementing the packaging machine provided by this invention compared with the prior art are as follows:

[0016] Before packaging the cookware, the wrapping paper is placed on a paper feeding device, which then delivers the wrapping paper to a folding device. The cookware is then placed onto the folding device with the wrapping paper by hand or a robotic arm. The folding device wraps the wrapping paper around the cookware, thus completing the packaging process. This allows for automated packaging of cookware, achieving modular packaging without manual operation, effectively improving packaging efficiency while ensuring packaging quality and ease of use. This invention improves cookware packaging efficiency and guarantees packaging quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] Figure 1 This is a schematic diagram of the structure of a packaging machine from a first view according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a packaging machine from a second view according to an embodiment of the present invention;

[0020] Figure 3 This is a structural schematic diagram of a packaging machine from a third view according to an embodiment of the present invention;

[0021] Figure 4 It is at Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 5 It is at Figure 2 A magnified view of a section at point B in the middle;

[0023] Figure 6 This is a schematic diagram of the conveying mechanism;

[0024] Figure 7 This is a schematic diagram of the paper clamp;

[0025] Figure 8 This is a schematic diagram of the paper clamp from another viewpoint;

[0026] Figure 9 This is a schematic diagram of the second motor;

[0027] Figure 10 This is a schematic diagram of the rotating component.

[0028] Marked in the image:

[0029] Frame 1; Paper feeding device 2; Lifting mechanism 21; Transmission assembly 211; First gear pair 2111; Drive shaft 2112; Second gear pair 2113; Screw and nut pair 2114; First linear guide pair 2115; Support member 2116; First motor 212; Support plate 213; Conveying mechanism 22; Mounting member 221; First cylinder 222; Second cylinder 223; Moving part 224; Mounting rod 225; First suction cup 226; First... Guide assembly 227; First fixed rod 2271; First movable rod 2272; Second guide assembly 228; Second fixed rod 2281; Second movable rod 2282; Guide limiting assembly 23; Guide plate 231; Mounting bracket 232; Connecting rod 233; Folding device 3; Folding mechanism 31; Folding table 311; Paper clamp 312; Top plate 3121; Blade 3122; Turntable 3123; Second motor 3124; Through hole 3125 ; Gathering opening 3126; Notch 3127; First snap-fit ​​component 3128; First guide groove 3129; Second snap-fit ​​component 3130; Second guide groove 3131; Gear 3132; Toothed edge 3133; Mounting bracket 3134; Guide wheel 3135; First pressing mechanism 32; First mounting bracket 321; Second mounting bracket 322; Third cylinder 323; Fourth cylinder 324; Second linear guide pair 325; Second pressing mechanism 33; Third mounting bracket 34; Mounting rack 331; sixth cylinder 332; rotary output mechanism 34; conveying assembly 341; rotating assembly 342; fixed frame 3421; adjusting frame 3422; drive wheel 3423; rotating shaft 3424; guide wheel 3425; third motor 3426; third linear guide pair 3427; placement rack 35; fourth motor 351; third linear guide pair 352; guide roller 353; limit wheel 354; limit frame 355; transfer assembly 36. Detailed Implementation

[0030] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0031] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0032] like Figures 1 to 10 As shown, a preferred embodiment of the present invention provides a packaging machine, which includes a frame 1, a paper feeding device 2, and a paper folding device 3. Both the paper feeding device 2 and the paper folding device 3 are mounted on the frame 1. The paper feeding device 2 is used to convey packaging paper to the paper folding device 3. The paper folding device 3 includes a paper folding mechanism 31, a first pressing mechanism 32, a second pressing mechanism 33, and a rotating output mechanism 34. The first pressing mechanism 32 is located above the paper folding mechanism 31, and the rotating output mechanism 34 is located above the paper folding mechanism 31. Below 31; the first pressing mechanism 32 is used to press the cookware through the folding mechanism 31 to the rotating output mechanism 34, the folding mechanism 31 is used to wrap the packaging paper around the outer periphery of the cookware and gather the upper end of the packaging paper to close it, the rotating output mechanism 34 is used to drive the cookware to rotate so that the upper end of the packaging paper is spirally closed, and to convey the cookware with the upper end of the packaging paper spirally closed to the second pressing assembly, the second pressing mechanism 33 is used to press the packaging paper with the upper end closed into the interior of the cookware.

[0033] Before packaging the cookware, the wrapping paper is placed on the paper feeding device 2, which then feeds the wrapping paper to the folding device 3. The cookware is then placed on the folding device 3 with the wrapping paper by hand or a robotic arm. The folding device 3 wraps the wrapping paper around the outer perimeter of the cookware, thus completing the packaging process. This allows for automated packaging of the cookware, achieving modular packaging without manual operation, effectively improving packaging efficiency while ensuring packaging quality and ease of use. This invention improves cookware packaging efficiency and guarantees packaging quality.

[0034] For example, the paper feeding device 2 includes a lifting mechanism 21 and a conveying mechanism 22. The lifting mechanism 21 includes a transmission assembly 211 and a first motor 212. Two transmission assemblies 211 are provided and symmetrically arranged on the left and right sides of the frame 1. A support plate 213 is connected between the two transmission assemblies 211. The first motor 212 is connected to the transmission assembly 211 and drives the support plate 213 to move up and down through the transmission assembly 211. The conveying mechanism 22 is located above the transmission assembly 211. The conveying mechanism 22 includes a mounting component 221, a first cylinder 222, a second cylinder 223, a movable component 224, a mounting rod 225, and a first cylinder 223. A suction cup 226 is provided. The mounting component 221 is fixedly mounted on the frame 1. The first cylinder 222 is mounted on the mounting component 221. The telescopic end of the first cylinder 222 is fixedly connected to the movable component 224 and is used to drive the movable component 224 to move in the front-back direction. The second cylinder 223 is mounted on the movable component 224. The telescopic end of the second cylinder 223 is fixedly connected to the mounting rod 225 and is used to drive the mounting rod 225 to move in the up-down direction. Multiple first suction cups 226 are provided and are all mounted on the mounting rod 225. The multiple first suction cups 226 are evenly spaced. The first suction cup 226 is connected to an external vacuum pump.

[0035] Before packaging the cookware, the packaging paper is placed on the support plate 213. The first motor 212 drives the support plate 213 to move up and down, so that the packaging paper is transported to the corresponding position of the first suction cup 226. At this time, the paper is attracted to the first suction cup 226, driving the first cylinder 222 and the second cylinder 223 to move the packaging paper to the folding device 3. Turning off the vacuum pump will release the suction cup. The structure is simple and not easy to jam. Due to the setting of the first suction cup 226, the packaging paper can be prevented from being damaged during the transmission process, reducing the number of manual adjustments and time, avoiding material waste, and ensuring the smooth progress of subsequent processes.

[0036] In this embodiment, the mounting rod 225 is a square rod, and the suction cup is mounted on the mounting rod 225 via a suction cup bracket. The suction cup bracket has a square through hole 3125 through which the mounting rod 225 can pass. Therefore, the square through hole 3125 prevents the suction cup from rotating during movement, thus ensuring that the suction cup can smoothly transfer the packaging paper.

[0037] For example, the mounting component 221 is provided with a first guide assembly 227. There are two first guide assemblies 227, which are respectively located at the left and right ends of the first cylinder 222. The first guide assembly 227 includes a first fixed rod 2271 and a first movable rod 2272. The first fixed rod 2271 is fixedly mounted on the mounting component 221. The first movable rod 2272 is movably inserted into the first fixed rod 2271. One end of the first movable rod 2272 is fixedly connected to the movable component 224. The movable component 224 is provided with a second guide assembly 228. There are two second guide assemblies 228, which are respectively located at the left and right ends of the second cylinder 223. The second guide assembly 228 includes a second fixed rod 2281 and a second movable rod 2282. The second fixed rod 2281 is fixedly mounted on the movable component 224. The second movable rod 2282 is movably inserted into the second fixed rod 2281. One end of the second movable rod 2282 is fixedly connected to the mounting rod 225. Therefore, the first guide assembly 227 and the second guide assembly 228 can play a supporting and guiding role, ensuring the connection between the first cylinder 222 and the moving part 224 and between the second cylinder 223 and the mounting rod 225, avoiding breakage during the extension of the first cylinder 222 and the second cylinder 223, and ensuring the normal operation of the equipment.

[0038] For example, the transmission assembly 211 includes a first gear pair 2111, a transmission shaft 2112, a second gear pair 2113, a lead screw and nut pair 2114, a first linear guide pair 2115, and a support member 2116. The first motor 212 is connected to the transmission shaft 2112 through the first gear pair 2111 and is used to drive the transmission shaft 2112 to rotate. Two second gear pairs 2113 are provided and respectively disposed at the left and right ends of the transmission shaft 2112. The second gear pair 2113... The moving bevel gear is connected to the lead screw of the lead screw and nut pair 2114. The guide rail of the first linear guide pair 2115 is vertically fixed on the frame 1. The lead screw of the lead screw and nut pair 2114 is parallel to the guide rail of the first linear guide pair 2115. The nut of the lead screw and nut pair 2114 is fixedly connected to the slider of the first linear guide pair 2115. The support member 2116 is fixed on the slider of the first linear guide pair 2115. The support plate 213 is fixed on the support member 2116.

[0039] For example, the frame 1 is provided with two guide limiting components 23 for limiting paper sway. The guide limiting components 23 are adjustable left and right on the frame 1. Specifically, the guide limiting component 23 includes a guide plate 231, a mounting bracket, and a connecting rod 233. The mounting bracket is adjustable left and right on the frame 1, and the guide plate 231 is connected to the mounting bracket through the connecting rod 233. Due to the thinness of the paper, the guide plate 231 can limit the paper during the conveying process of the conveying mechanism 22, preventing the paper from swaying during conveying and ensuring that the paper fits perfectly with the cookware for easy use. In addition, in actual use, the distance between the two guide limiting components 23 can be adjusted according to the actual size of the paper for convenient use.

[0040] For example, the folding mechanism 31 includes a folding table 311 and a paper clamp 312. The paper clamp 312 is installed below the folding table 311. The paper clamp 312 includes a top plate 3121, blades 3122, a turntable 3123, and a second motor 3124. The top plate 3121 and the turntable 3123 are coaxially arranged. Multiple blades 3122 are provided and located between the top plate 3121 and the turntable 3123. The power output end of the second motor 3124 is connected to the turntable 3123 and is used to drive the blades 3122 to rotate. When the turntable... When the turntable 3123 rotates to the first angle, the blade 3122 is in a retracted state, hidden between the top plate 3121 and the turntable 3123, forming a through hole 3125 for the cookware to pass through. When the turntable 3123 rotates to the second angle, the blade 3122 is in an extended state, extending out of the through hole 3125 and forming a gathering opening 3126 at its center for closing the packaging paper. The folding table 311 has a notch 3127 opposite to the through hole 3125. In this embodiment, the gathering opening 3126 is a hexagonal opening, and the notch 3127 is surrounded by stiff brushes.

[0041] After the packaging paper is fed to the folding table 311 by the paper feeding device 2, the first pressing mechanism 32 is raised to its highest position. The turntable 3123 is driven to rotate to the first angle by the second motor 3124. The pot is placed on the folding table 311 and the corresponding position of the paper clamp 312 by manual or robotic arm. The first pressing mechanism 32 is driven to press the pot through the notch 3127 and the through hole 3125 to the rotating output mechanism 34. At this time, the turntable 3123 is driven to rotate to the second angle by the first motor 212. The blade 3122 extends out of the through hole 3125 and forms a gathering opening 3126 in its center for closing the packaging paper. Then the rotating output mechanism 34 drives the pot to rotate, so that the upper end of the packaging paper is spirally closed. Finally, the second pressing mechanism 33 presses the closed packaging paper into the pot, thus completing the folding action of the pot.

[0042] It is understood that the folding table 311 is also equipped with a transfer assembly 36. Two transfer assemblies 36 are provided and respectively located at the left and right ends of the folding table 311. Each transfer assembly 36 includes a belt conveyor and multiple transfer wheels. The belt conveyor is mounted on the frame 1 and arranged along the front-rear direction of the frame 1. The transfer wheels are mounted on the frame 1 via brackets. The transfer wheels can transfer the packaging paper from the first suction cup 226 to the folding table 311. This avoids interference between the paper feeding device 2 and the folding device 3, facilitating use.

[0043] Specifically, the upper surface of the blade 3122 is provided with a first engaging member 3128, the top plate 3121 is provided with a plurality of first guide grooves 3129 that cooperate with the first engaging member 3128, the lower surface of the blade 3122 is provided with a second engaging member 3130, and the turntable 3123 is provided with a plurality of second guide grooves 3131 that cooperate with the second engaging member 3130. The number of blades 3122, first guide grooves 3129, and second guide grooves 3131 are matched. It should also be noted that, in this embodiment, the first guide grooves 3129 are set as straight grooves, and the plurality of first guide grooves 3129 are all inclined in the same direction. The second guide grooves 3131 are set as arc grooves, and the plurality of second guide grooves 3131 are arranged in a vortex shape.

[0044] For example, the first pressing mechanism 32 includes a first mounting frame 321, a second mounting frame 322, a third cylinder 323, and a fourth cylinder 324. The first mounting frame 321 is fixedly disposed on the upper end of the frame 1. A second linear guide rail pair 325 is provided on the first mounting frame 321. The guide rail of the second linear guide rail pair 325 is fixed on the first mounting frame 321 and arranged in the vertical direction. The second mounting frame 322 is fixedly connected to the slider of the second linear guide rail pair 325. The third cylinder 323 is disposed on the first mounting frame 321. The telescopic end of the third cylinder 323 is connected to the slider of the second linear guide rail pair 325 and is used to drive the second mounting frame 322 to move up and down. The fourth cylinder 324 is mounted on the second mounting frame 322. The telescopic end of the fourth cylinder 324 faces downward and is opposite to the center of the through hole 3125. A second suction cup is provided on the telescopic end of the fourth cylinder 324. The second suction cup is externally connected to a vacuum pump. Before packaging, ensure that the first cylinder 222 positions the second mounting bracket 322 at the top. During packaging, the third cylinder 323 drives the second mounting bracket 322 to move downward, causing the fourth cylinder 324 mounted on the second mounting bracket 322 to move downward. The fourth cylinder 324 extends to drive the cookware to pass through the notch 3127 and through hole 3125 to the rotating output mechanism 34. At the same time, the second suction cup can firmly hold the cookware to prevent it from shifting, ensuring that the packaging of the cookware is carried out smoothly.

[0045] For example, the rotary output mechanism 34 includes a conveying assembly 341 and a rotating assembly 342. The conveying assembly 341 is disposed below the paper clamp 312, and the rotating assembly 342 is disposed on the input end of the conveying assembly 341. The rotating assembly 342 includes a fixed frame 3421, an adjusting frame 3422, a drive wheel 3423, a rotating shaft 3424, a guide wheel 3425, a third motor 3426, a third linear guide pair 3427, and a fifth cylinder. The fixed frame 3421 is fixedly disposed on the frame 1, and the guide rail of the third linear guide pair 3427 is fixedly disposed on the frame 1. The slider of the third linear guide pair 3427 is fixedly connected to the adjusting frame 3422. The telescopic end of the fifth cylinder is fixedly connected to the adjusting frame 3422 and is used to drive the adjusting frame 3422 to move. The fixed frame 3421 and the adjusting frame 3422 are arranged at intervals. Both the fixed frame 3421 and the adjusting frame 3422 are located below the paper clamp 312. The drive wheel 3423 is fixedly mounted on the rotating shaft 3424. The rotating shaft 3424 is rotatably mounted on the fixed frame 3421. A drive wheel is fixedly mounted on the power output end of the third motor 3426. A driven wheel is fixedly mounted on the rotating shaft 3424. The drive wheel is connected to the driven wheel via a belt. The power output end of the third motor 3426 drives the rotating shaft 3424 to rotate, thereby driving the drive wheel 3423 to rotate. Both the fixed frame 3421 and the adjusting frame 3422 are equipped with guide wheels 3425. Both the drive wheel 3423 and the guide wheel 3425 can abut against the outer peripheral side wall of the pot. Before packaging, the distance between the fixing frame 3421 and the adjusting frame 3422 is adjusted according to the actual size of the cookware. The third motor 3426 drives the driving wheel to rotate and drives the driven wheel, so that the rotating shaft 3424 and the driving wheel 3423 rotate synchronously. Therefore, the cookware can rotate under the action of the driving wheel 3423. With the cooperation of the paper clamp 312, the end of the packaging paper can complete the spiral closing shape to wrap the cookware. Furthermore, the conveying assembly 341 is composed of a belt conveyor and a roller conveyor.

[0046] For example, the second pressing mechanism 33 includes a third mounting bracket 331 and a sixth cylinder 332. The third mounting bracket 331 is fixed to the output end of the conveying assembly 341, and the sixth cylinder 332 is mounted on the third mounting bracket 331 with its power output end facing downwards. Thus, the cookware can be conveyed to the second pressing mechanism 33 via the conveying assembly 341, and the upper end of the wrapping paper can be pressed into the cookware by the sixth cylinder 332, completing the entire folding and wrapping process of the cookware.

[0047] For example, the frame 1 is provided with a placement rack 35 for placing cookware and a fourth motor 351. Two placement racks 35 are provided and arranged opposite each other. The frame 1 is provided with a third linear guide rail pair 3427. The guide rail of the third linear guide rail is fixed to the frame 1 and arranged in a left-right direction. The placement rack 35 is fixedly connected to the slider of the third linear guide rail pair 3427. The power output end of the fourth motor 351 is fixedly connected to the slider of the third linear guide rail pair 3427 and is used to drive the placement rack 35 to move left and right. Before packaging, the cookware is placed on the placement rack 35 manually or by a robotic arm. After the second suction cup adsorbs the cookware, the fourth motor 351 drives the two placement racks 35 to move away from each other. This avoids the cookware touching the packaging paper before it is adsorbed by the suction cup, preventing the packaging paper from shifting before packaging, effectively reducing manual adjustment time and speeding up the folding efficiency of the cookware.

[0048] Specifically, the placement rack 35 is equipped with guide rollers 353, limiting wheels 354, and limiting frames 355. Multiple guide rollers 353 are evenly spaced in the front-to-back direction. The limiting frames 355 are mounted on the placement rack 35 and are inclined. The limiting wheels 354 are mounted on the limiting frames 355. Thus, the limiting wheels 354 prevent the cookware from slipping out, facilitating use.

[0049] In this embodiment, the first motor 212 is provided with a gear 3132, and the turntable 3123 is provided with a toothed mouth 3133 that cooperates with the gear 3132.

[0050] For example, both the top plate 3121 and the turntable 3123 are annular. The top plate 3121 has multiple mounting brackets. The upper end of each mounting bracket is fixedly connected to the frame 1, and the lower end is fixedly connected to the top plate 3121. Guide wheels 3135 are mounted on the mounting brackets, and each guide wheel 3135 has a U-shaped groove that matches the thickness of the turntable 3123. The guide wheels 3135 prevent the turntable 3123 from deflecting during rotation, thus avoiding damage to the paper clamp 312.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A packaging machine, characterized in that, The device includes a frame, a paper feeding device, and a paper folding device. Both the paper feeding device and the paper folding device are mounted on the frame. The paper feeding device conveys packaging paper to the paper folding device. The paper folding device includes a folding mechanism, a first pressing mechanism, a second pressing mechanism, and a rotating output mechanism. The first pressing mechanism is located above the folding mechanism, and the rotating output mechanism is located below the folding mechanism. The first pressing mechanism presses the cookware through the folding mechanism to the rotating output mechanism. The folding mechanism wraps the packaging paper around the outer periphery of the cookware and gathers the upper end of the packaging paper to close it. The rotating output mechanism rotates the cookware so that the upper end of the packaging paper forms a spiral shape. The device also conveys the cookware with the spirally closed upper end of the packaging paper to the second pressing mechanism, which presses the closed upper end of the packaging paper into the interior of the cookware. The folding mechanism includes a folding table and a paper clamp. The paper clamp is installed below the folding table and includes a top plate, blades, a turntable, and a second motor. The top plate and the turntable are coaxially arranged. Multiple blades are provided and located between the top plate and the turntable. The power output end of the second motor is connected to the turntable and is used to drive the blades to rotate. When the turntable rotates to a first angle, the blades are in a retracted state and are hidden between the top plate and the turntable, forming a through hole for a cookware to pass through. When the turntable rotates to a second angle, the blades are in an extended state, extending out of the through hole and forming a gathering opening at its center for closing the packaging paper. The folding table has a notch opposite to the through hole. The first pressing mechanism includes a first mounting frame, a second mounting frame, a third cylinder, and a fourth cylinder. The first mounting frame is fixedly mounted on the upper end of the frame. A second linear guide rail pair is provided on the first mounting frame. The guide rail of the second linear guide rail pair is fixed on the first mounting frame and arranged in the vertical direction. The second mounting frame is fixedly connected to the slider of the second linear guide rail pair. The third cylinder is mounted on the first mounting frame. The telescopic end of the third cylinder is connected to the slider of the second linear guide rail pair and is used to drive the second mounting frame to move up and down. The fourth cylinder is mounted on the second mounting frame. The telescopic end of the fourth cylinder faces downward and is opposite to the center of the through hole. A second suction cup is provided on the telescopic end of the fourth cylinder. The second suction cup is externally connected to a vacuum pump.

2. The packaging machine according to claim 1, characterized in that, The paper feeding device includes a lifting mechanism and a conveying mechanism. The lifting mechanism includes a transmission assembly and a first motor. Two transmission assemblies are symmetrically arranged on the left and right sides of the frame, and a support plate is connected between the two transmission assemblies. The first motor is connected to the transmission assembly and drives the support plate to move up and down through the transmission assembly. The conveying mechanism is located above the transmission assembly. The conveying mechanism includes a mounting component, a first cylinder, a second cylinder, a movable component, a mounting rod, and a first suction cup. The mounting component is fixedly mounted on the frame. The first cylinder is mounted on the mounting component, and its telescopic end is fixedly connected to the movable component and is used to drive the movable component to move in the front-back direction. The second cylinder is mounted on the movable component, and its telescopic end is fixedly connected to the mounting rod and is used to drive the mounting rod to move in the up-down direction. Multiple first suction cups are provided and all are mounted on the mounting rod. The multiple first suction cups are evenly spaced, and the first suction cups are externally connected to a vacuum pump.

3. A packaging machine according to claim 2, characterized in that, The mounting component is provided with a first guide assembly. There are two first guide assemblies, which are respectively located at the left and right ends of the first cylinder. The first guide assembly includes a first fixed rod and a first movable rod. The first fixed rod is fixedly mounted on the mounting component. The first movable rod is movably inserted into the first fixed rod. One end of the first movable rod is fixedly connected to the movable component. The movable component is provided with a second guide assembly. There are two second guide assemblies, which are respectively located at the left and right ends of the second cylinder. The second guide assembly includes a second fixed rod and a second movable rod. The second fixed rod is fixedly mounted on the movable component. The second movable rod is movably inserted into the second fixed rod. One end of the second movable rod is fixedly connected to the mounting rod.

4. A packaging machine according to claim 2, characterized in that, The transmission assembly includes a first gear pair, a transmission shaft, a second gear pair, a lead screw and nut pair, a first linear guide pair, and a support member. The first motor is connected to the transmission shaft through the first gear pair and is used to drive the transmission shaft to rotate. There are two second gear pairs, which are respectively located at the left and right ends of the transmission shaft. The driven bevel gear of the second gear pair is connected to the lead screw of the lead screw and nut pair. The guide rail of the first linear guide pair is vertically fixed on the frame. The lead screw of the lead screw and nut pair is parallel to the guide rail of the first linear guide pair. The nut of the lead screw and nut pair is fixedly connected to the slider of the first linear guide pair. The support member is fixed on the slider of the first linear guide pair, and the support plate is fixed on the support member.

5. A packaging machine according to claim 2, characterized in that, The frame is equipped with two guide limiting components for limiting paper sway, and the guide limiting components are adjustable left and right on the frame.

6. A packaging machine according to claim 1, characterized in that, The rotary output mechanism includes a conveying assembly and a rotating assembly. The conveying assembly is located below the paper clamp, and the rotating assembly is located at the input end of the conveying assembly. The rotating assembly includes a fixed frame, an adjusting frame, a drive wheel, a rotating shaft, a guide wheel, a third motor, a third linear guide pair, and a fifth cylinder. The fixed frame is fixedly mounted on the machine frame, and the guide rail of the third linear guide pair is fixedly mounted on the machine frame. The slider of the third linear guide pair is fixedly connected to the adjusting frame. The telescopic end of the fifth cylinder is fixedly connected to the adjusting frame and is used to drive the adjusting frame to move. The fixed frame and the adjusting frame are arranged at intervals. Both the fixed frame and the adjusting frame are located below the paper clamp. The drive wheel is fixedly mounted on the rotating shaft, and the rotating shaft is rotatably mounted on the fixed frame. A drive wheel is fixedly mounted on the power output end of the third motor, and a driven wheel is fixedly mounted on the rotating shaft. The drive wheel is connected to the driven wheel via a belt. The power output end of the third motor drives the rotating shaft to rotate, thereby driving the drive wheel to rotate. Both the fixed frame and the adjusting frame are equipped with guide wheels. Both the drive wheel and the guide wheel can abut against the outer peripheral side wall of the cookware.

7. A packaging machine according to claim 6, characterized in that, The second pressing mechanism includes a third mounting bracket and a sixth cylinder. The third mounting bracket is fixed on the output end of the conveying assembly, and the sixth cylinder is mounted on the third mounting bracket with its power output end facing downward.

8. A packaging machine according to claim 1, characterized in that, The frame is equipped with a placement rack for placing cookware and a fourth motor. There are two placement racks arranged opposite each other. The frame is equipped with a third linear guide rail pair. The guide rail of the third linear guide rail is fixed on the frame and arranged in the left-right direction. The placement rack is fixedly connected to the slider of the third linear guide rail pair. The power output end of the fourth motor is fixedly connected to the slider of the third linear guide rail pair and is used to drive the placement rack to move left and right.

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