Packaging machine and packaging method

Abstract

Second side frames are located on the left side and the right side of a containing platform correspondingly, first pressing mechanisms are arranged on the left side and the right side of a rack correspondingly, a second driving device drives a maintaining pressing plate to move up and down above the containing platform, and a second pressing mechanism and an upturning mechanism are arranged at the front end and the rear end of the rack correspondingly. The third driving device and the fourth driving device respectively drive the upper pressing plate to move up and down and move back and forth above the placing platform, the fifth driving device drives the turning plate to move up and down above the placing platform, and the seventh driving device drives the automatic carton sealing machine to move longitudinally above the placing platform. Goods are firstly placed above the bottom plate, then the first downward pressing mechanism, the second downward pressing mechanism and the upturning mechanism bend paperboards in sequence, the goods are placed in the process that the paperboards are folded into cartons, follow-up additional boxing operation is not needed, and compared with the prior art that the paperboards are firstly folded and then loaded, the folding efficiency and the loading efficiency are higher.

Description

Technical Field

[0001] This invention relates to the field of packaging, and in particular to a packaging machine and packaging method. Background Technology

[0002] Existing cardboard boxes are assembled by bending a single piece of cardboard. Before placing goods inside, the cardboard needs to be folded into a ring. For example... Figure 14 As shown, in the specific processing, the first step is to separate the four cardboard pieces in the middle ( Figure 14 (The dotted line indicates the bend) Form a ring. Secure the leftmost adhesive board 999 to the rightmost cardboard with glue or nails. After forming the ring, the second step is to bend the cardboard to seal one opening of the ring and secure multiple pieces of cardboard at this sealed opening with tape. Finally, the third step is to place the carton with the only opening facing upwards, fill the goods through the top opening, and then seal this opening with the bent cardboard and secure it with tape.

[0003] Existing cardboard boxes use adhesive board 999, requiring a large area of ​​cardboard, and both seals require tape, increasing material costs. They also require staples or glue to form a ring, adding extra material and production costs. The process from cardboard to a fully loaded box involves three steps, which is cumbersome, time-consuming, and inefficient. When loading goods, all five sides are closed, with only one opening for entry, making loading inconvenient and further reducing loading efficiency.

[0004] Existing cardboard packaging machines can only complete part of the process of folding cardboard into boxes. Therefore, multiple machines are needed to complete the process from cardboard to sealed boxes after filling with goods. Multiple machines not only increase equipment costs, but also require time for material transfer between machines, reducing the production efficiency of cardboard folding and packaging.

[0005] When closing the opening of a conventional cardboard box, a portion of the cardboard at the opening (the inner cardboard) needs to be bent into the inside of the box to make room for the other bent cardboard pieces. Before pressing, the inner cardboard and the adjacent cardboard pieces are pressed together to create grooves for bending.

[0006] Mechanical pressing devices typically apply pressure very close to the groove to fully press the inner cardboard into the carton. However, pressing too close to the groove results in a small lever arm, requiring excessive pressing force. This necessitates a larger cylinder to provide the pressure, increasing both cylinder cost and overall equipment size. For small carton packaging machines, this increased size significantly impacts transportation and usability.

[0007] Furthermore, because the grooves at the joints of adjacent cardboard pieces are relatively shallow, pressing near these grooves can cause the inner cardboard to not bend at the groove itself; that is, the bend between the inner cardboard and its connecting cardboard will be outside the pre-pressed groove. This will result in deformation of the bent carton, rendering it unusable. Summary of the Invention

[0008] This invention aims to solve the above-mentioned problems by providing a packaging machine and packaging method, which solves the problems of low efficiency in cardboard folding and loading, the problem of requiring large pressing pressure when bending the inner cardboard of the carton, and the problem of easy deformation of the carton caused by the pressing point being too close to the groove. A packaging machine, characterized in that it comprises: a frame, a first pressing mechanism, a second pressing mechanism, an upward flipping mechanism, and a sealing mechanism. The frame includes a placement platform and a second side frame, the second side frame being located on the left and right sides of the placement platform and fixedly connected to the placement platform. The first pressing mechanism is respectively arranged on the left and right sides of the frame. The first pressing mechanism includes a second driving device and a holding plate. The second driving device drives the holding plate to move up and down above the placement platform. The second pressing mechanism and the upward flipping mechanism are respectively arranged at the front and rear ends of the frame. The second pressing mechanism includes a third driving device, an upper pressure plate, and a fourth driving device. The third driving device and the fourth driving device respectively drive the upper pressure plate to move up and down and back and forth above the placement platform. The upward flipping mechanism includes a flipping plate and a fifth driving device. The fifth driving device drives the flipping plate to move up and down above the placement platform. The sealing mechanism includes a seventh driving device and an automatic carton sealing machine. The seventh driving device drives the automatic carton sealing machine to move longitudinally above the placement platform.

[0009] Preferably, the upper pressure plate and the flip plate rotate relative to the placement platform, the rotation axis of the upper pressure plate and the rotation axis of the flip plate are parallel and both are transverse, and the initial height of the end of the upper pressure plate away from its rotation axis is higher than the initial height of the end of the flip plate away from its rotation axis.

[0010] Preferably, the frame further includes a first side frame located at the front and rear ends of the placement platform and extending downwards. The second pressing mechanism further includes a first rotating shaft, a first fixed shaft, and a mounting bracket. The axes of the first rotating shaft and the first fixed shaft are transverse. The two ends of the mounting bracket are rotatably connected to the first rotating shaft and the first fixed shaft, respectively. The mounting bracket is fixedly connected to the upper pressure plate. The two ends of the third driving device are connected to the first side frame and the first rotating shaft, respectively. The housing of the fourth driving device is fixedly connected to the frame. The push rod of the fourth driving device is fixedly connected to the first fixed shaft. The third driving device drives the first rotating shaft and the mounting bracket to rotate around the first fixed shaft. The placement platform has recessed first mounting holes at both its front and rear ends. The flip plate is located in the first mounting hole. The flipping mechanism also includes a third shaft, a fourth shaft, and a second mounting frame located below the placement platform. The opposite ends of the two corresponding flip plates are fixedly connected to the second mounting frame. The two ends of the second mounting frame are rotatably connected to the third shaft and the fourth shaft, respectively. The third shaft is fixedly connected to the bottom of the placement platform. The fifth driving device is located below the placement platform and connected to the fourth shaft. The fifth driving device drives the fourth shaft and the second mounting frame to rotate around the third shaft.

[0011] Preferably, the second pressing mechanism further includes a pressing member, wherein the upper pressing plate is fixedly or rotatably connected to the pressing member at one end away from its rotation axis, and the pressing member has an arc surface.

[0012] Preferably, the retaining pressure plate rotates relative to the second side frame, and the rotation axis of the retaining pressure plate is longitudinal; the first pressing mechanism further includes a second suction cup, and the opposing ends of the pressure plates of the first pressing mechanisms on the left and right sides are fixedly connected to the second suction cup.

[0013] Preferably, the first pressing mechanism further includes a first shaft and a second shaft, the first shaft and the second shaft are parallel and the axial direction is longitudinal, the second shaft is located between the first shaft and the second suction cup, the second shaft is fixedly connected to the holding pressure plate and rotatably connected to the second side frame, the first shaft is connected to the holding pressure plate, the second driving device is a cylinder, and the two ends of the second driving device are rotatably connected to the second side frame and the first shaft respectively.

[0014] Preferably, it further includes a side suction mechanism, which includes a first suction cup, and the second side frames on the left and right sides are respectively connected to the first suction cup on opposite sides; a horizontal lower positioning surface is formed above the placement platform, and a side positioning surface is formed on opposite sides of the second side frames on the left and right sides. The side positioning surface is a vertical plane, and the side positioning surfaces of the second side frames on the left and right sides are parallel. The second side frame has a mounting hole, the opening of which is located on the side positioning surface, and the first suction cup is located inside the mounting hole.

[0015] Preferably, the side suction mechanism further includes a first driving device and a mounting block. The first driving device is a cylinder. Both ends of the first driving device are fixedly connected to the mounting block and the second side frame, respectively. The end of the mounting block away from the first driving device is fixedly connected to the first suction cup.

[0016] Preferably, it also includes a lifting mechanism, which includes a lifting plate and a sixth driving device. A recessed second mounting hole is formed in the middle of the placement platform. The lifting plate is located in the second mounting hole. The sixth driving device is located below the placement platform and drives the lifting plate to move up and down.

[0017] Preferably, the seventh drive device is fixedly connected to the frame, and pressure rollers with transverse axes are rotatably arranged on the front and rear sides below the automatic carton sealing machine, and the tape outlet of the automatic carton sealing machine is located between the pressure rollers on the front and rear sides.

[0018] Preferably, it also includes a first sensor, and the second side frames on the left and right sides are fixedly connected to the first sensor on opposite sides. The first sensor is used to detect whether the item is located above the placement platform.

[0019] A packaging method using the aforementioned packaging machine, characterized by comprising the following steps: Step S1: Position the unfolded flat cardboard above the placement platform, then press down the bottom plate in the middle of the cardboard. As the bottom plate moves downward, the second side plates on its left and right sides are squeezed upward by the second side frame until the bottom plate and the second side plate are respectively attached to the placement platform and the second side frame. Step S2: Place the goods on top of the base plate 91 Step S3: The second driving device of the first pressing mechanism on the left and right sides drives the end of the holding plate to rotate downward. After the holding plate contacts the top plate, it drives the top plate to rotate relative to the second side plate connected to it, so that the included angle between the bottom of the top plates on the left and right sides is 180 degrees or an obtuse angle. Step S4: The third drive device of the second pressing mechanism at both ends drives one end of the upper pressure plate to rotate downwards, and the upper pressure plate drives the inner plate away from the top plate and bends the inner plate downwards. Step S5: The fourth drive device of the second pressing mechanism at both ends drives the upper pressure plate to move towards each other, and the upper pressure plate drives the inner plate away from the top plate to move between the bottom plate and the top plate. Step S6: The fifth drive device of the flipping mechanism at both ends drives one end of the flip plate to rotate upward, the flip plate contacts the first side plate and drives the first side plate to bend upward until the first side plate contacts the inner plate. Step S7: The flip plate is held in position, and the seventh drive device drives the automatic box sealing machine to move longitudinally. During the movement, the automatic box sealing machine adheres and fixes the tape to the outer surface of the top plate on both sides and the outer surface of the first side plate at both ends. Step S8: The automatic carton sealing machine cuts the tape.

[0020] The present invention has the following advantages: 1. First, place the goods on the bottom plate. Then, the first pressing mechanism, the second pressing mechanism, and the upward flipping mechanism bend the cardboard in sequence. The goods are placed while the cardboard is being folded into a carton. No additional packing operation is required afterward. Compared with the existing technology of folding the cardboard first and then loading the goods, the folding efficiency and loading efficiency are higher. 2. The first suction cup adheres to and fixes the second side plate, and the second suction cup adheres to and fixes the top plate. The positions of the second side plate and the top plate relative to the bottom plate are fixed, which facilitates accurate bending of the inner plate in the future. The first pressing mechanism on the left and right sides makes the top plate fixed to it form a certain angle with the horizontal plane, which increases the gap between the inner plate and the bottom plate and the second side plate, reduces the frictional resistance between the inner plate and the bottom plate and the second side plate, and facilitates the smooth downward bending of the inner plate. 3. The packaging machine only needs to use tape to fix the carton once to limit and fix its position (maintain the shape of the carton), which reduces the number of processing steps and improves production efficiency; 4. The space above the base plate for placing goods has three interconnected openings: the front, the back, and the top. The space above the base plate is open, making it less likely for goods to be blocked by cardboard and increasing placement efficiency. 5. Only one strip of tape is used to fix the cardboard box in place. There is no glue or nails, so it is easier to remove the fasteners and reduces the steps of disassembling the cardboard box. This saves time on cardboard processing before recycling and helps to improve the efficiency of cardboard recycling in the later stage. 6. The lever arm from the point where the inner plate is subjected to the pressure of the pressing component to the connection between the top plate and the inner plate is relatively large, so the force provided by the third drive device is smaller. The third drive device can use a cylinder with smaller force and volume, which is conducive to reducing the size of the equipment and reducing the cost of the equipment. 7. The lever arm from the point where the inner panel is pressed by the pressing component to the connection between the top plate and the inner panel is relatively large. Therefore, the force provided by the third drive device is smaller. The smaller force is less likely to create new bends, ensuring that the rotation axis of the inner panel is in the groove between it and the top plate, thus avoiding deformation of the carton shape. 8. After the inner panel bends relative to the top panel, the fourth drive device drives the pressing component to move. The pressing component pushes the inner panel into the carton, preventing the inner panel from being exposed outside the carton and blocking the first side panel from rotating upward. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0022] Figure 1 : A three-dimensional structural schematic diagram of the present invention (first perspective); Figure 2 : A three-dimensional structural schematic diagram of the present invention (second perspective); Figure 3 : A schematic diagram of the main structure of the present invention; Figure 4: A top view of the structure of the present invention; Figure 5 : A schematic diagram of the left-side structure of the present invention; Figure 6 : A three-dimensional structural diagram of cardboard; Figure 7 :exist Figure 6 A magnified view of a section at point A in the middle; Figure 8 : A top view of the cardboard structure; Figure 9 :exist Figure 8 A magnified view of a section at point B in the middle; Figure 10 A schematic diagram of the main structure of a cardboard box when it is bent. Figure 11 : A top-view sectional view of the cardboard box after bending; Figure 12 A schematic diagram of the three-dimensional structure of the cardboard box after bending. Figure 13 A three-dimensional structural diagram of a cardboard box after tape has been applied. Figure 14 : A top view of an existing cardboard box after it has been unfolded; Figure 15 : A three-dimensional structural diagram of the second pressing mechanism; Figure 16 : Left view of the second pressing mechanism (without bending the internal plate); Figure 17 : A top view of the second pressing mechanism; Figure 18 : Left view of the second pressing mechanism (when bending the internal plate); Figure 19 : A three-dimensional structural diagram of the upper pressure plate and the pressing component. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and examples: Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 this invention. like Figures 1 to 13 and Figures 15 to 19 As shown, a packaging machine is characterized by comprising: a frame 1, a first pressing mechanism 3, a second pressing mechanism 4, an upward flipping mechanism 5, and a sealing mechanism. The frame 1 includes a placement platform 11 and a second side frame 13, the second side frame 13 being located on the left and right sides of the placement platform 11 and fixedly connected to the placement platform 11. The left and right sides of the frame 1 are respectively provided with the first pressing mechanism 3, each first pressing mechanism 3 including a second driving device 31 and a retaining pressure plate 34. The second driving device 31 drives the retaining pressure plate 34 to move up and down above the placement platform 11. The front and rear ends of the frame 1 are respectively provided with the second pressing mechanism 3. The second pressing mechanism 4 includes a third driving device 41, an upper pressing plate 45, and a fourth driving device 47. The third driving device 41 and the fourth driving device 47 respectively drive the upper pressing plate 45 to move up and down and back and forth above the placement platform 11. The second pressing mechanism 5 includes a flip plate 51 and a fifth driving device 55. The fifth driving device 55 drives the flip plate 51 to move up and down above the placement platform 11. The sealing mechanism includes a seventh driving device 7 and an automatic box sealing machine 8. The seventh driving device 7 drives the automatic box sealing machine 8 to move longitudinally above the placement platform 11.

[0026] It should be noted that the automatic carton sealing machine 8 is a device based on existing technology.

[0027] Preferably, the upper pressure plate 45 and the flip plate 51 rotate relative to the placement platform 11. The rotation axes of the upper pressure plate 45 and the flip plate 51 are parallel and both transverse. The initial height of the end of the upper pressure plate 45 away from its rotation axis is higher than the initial height of the end of the flip plate 51 away from its rotation axis. The initial height refers to the position of the flip plate 51 and the upper pressure plate 45 before they drive the cardboard to bend. Figure 1 As shown.

[0028] Preferably, the frame 1 further includes a first side frame 12, which is located at the front and rear ends of the placement platform 11 and extends downward. The second pressing mechanism 4 further includes a first rotating shaft 42, a first fixed shaft 43, and a mounting bracket 44. The axes of the first rotating shaft 42 and the first fixed shaft 43 are transverse. The two ends of the mounting bracket 44 are rotatably connected to the first rotating shaft 42 and the first fixed shaft 43, respectively. The mounting bracket 44 is fixedly connected to the upper pressure plate 45. The two ends of the third driving device 41 are connected to the first side frame 12 and the first rotating shaft 42, respectively. The housing of the fourth driving device 47 is fixedly connected to the frame 1. The push rod of the fourth driving device 47 is fixedly connected to the first fixed shaft 43. The third driving device 41 drives the first rotating shaft 42 and the mounting bracket 44 to rotate around the first fixed shaft 43.

[0029] More preferably, a second pressing mechanism 4 includes two synchronously moving upper pressing plates 45, which contact the two inner plates 95 on the same side and bend the two inner plates 95 respectively.

[0030] More preferably, the first side frame 12 is fixedly connected to the base frame 121, and the housing of the third drive device 41 is rotatably connected to the base frame 121.

[0031] Preferably, the placement platform 11 has recessed first mounting holes 111 at both its front and rear ends. The flip plate 51 is located in the first mounting holes 111. The flipping mechanism 5 also includes a third shaft 52, a fourth shaft 53, and a second mounting bracket 54 located below the placement platform 11. The opposite ends of the two corresponding flip plates 51 are fixedly connected to the second mounting bracket 54. The two ends of the second mounting bracket 54 are rotatably connected to the third shaft 52 and the fourth shaft 53, respectively. The third shaft 52 is fixedly connected to the lower part of the placement platform 11. The fifth driving device 55 is located below the placement platform 11 and connected to the fourth shaft 53. The fifth driving device 55 drives the fourth shaft 53 and the second mounting bracket 54 to rotate around the third shaft 52. When the flip plate 51 does not bend the first side plate 92, the flip plate 51 is housed inside the first mounting hole 111, preventing the flip plate 51 from obstructing the bottom plate 91 and the first side plate 92 from contacting the lower positioning surface.

[0032] More preferably, an upward-flipping mechanism 5 includes two synchronously moving flaps 51 on the left and right sides. The two flaps 51 together bend a first side plate 92. The first side plate 92 is stressed on both sides, so the side without stress will not deflect too little. At the same time, when applying tape 90, there is space between the flaps 51 on the left and right sides for the tape 90 to pass through, so as not to interfere with the sealing operation while maintaining the shape of the carton.

[0033] More preferably, the tilting mechanism 5 further includes a connecting rod 56, and the fifth driving device 55 is a cylinder. Both ends of the fifth driving device 55 are fixedly connected to the connecting rod 56, and the connecting rod 56 is connected to the fourth shaft 53 at both the front and rear ends. The tilting plates 51 at both the front and rear ends of the tilting mechanism 5 are driven by the same fifth driving device 55, saving equipment costs.

[0034] Preferably, the upper pressure plate 45 is connected to the pressing member 46 at the end away from the mounting bracket 44, the pressing member 46 being used to reduce friction with the carton 9.

[0035] Optionally, the pressing member 46 is an arc-shaped plate, and the pressing member 46 has an arc surface on the side away from the upper pressure plate 45. The smooth arc surface reduces the sliding friction of the inner plate 95 and also avoids scratching the inner plate 95.

[0036] Optionally, the pressing member 46 is a roller, the pressing member 46 is rotatably connected to the upper pressure plate 45, and the rotation axis of the pressing member 46 is transverse. The rotation of the pressing member 46 reduces the friction with the inner plate 95 and also avoids scratching the inner plate 95.

[0037] Preferably, the retaining pressure plate 34 rotates relative to the second side frame 13, and the rotation axis of the retaining pressure plate 34 is longitudinal; the first pressing mechanism 3 also includes a second suction cup 35, and the opposing ends of the pressure plates 34 of the first pressing mechanism 3 on the left and right sides are fixedly connected to the second suction cup 35.

[0038] Using the first suction cup 22 of the side suction mechanism 2 for fixation can further improve the positional stability of the second side plate 93 and reduce the positional error of the second side plate 93.

[0039] Preferably, the first pressing mechanism 3 further includes a first shaft 32 and a second shaft 33. The first shaft 32 and the second shaft 33 are parallel and their axial directions are longitudinal. The second shaft 33 is located between the first shaft 32 and the second suction cup 35. The second shaft 33 is fixedly connected to the holding pressure plate 34 and rotatably connected to the second side frame 13. The first shaft 32 is connected to the holding pressure plate 34. The second driving device 31 is a cylinder. The two ends of the second driving device 31 are rotatably connected to the second side frame 13 and the first shaft 32, respectively.

[0040] Preferably, it further includes a side suction mechanism 2, which includes a first suction cup 22, and the second side frames 13 on the left and right sides are respectively connected to the first suction cup 22 on opposite sides; a horizontal lower positioning surface is formed above the placement platform 11, and a side positioning surface is formed on opposite sides of the second side frames 13 on the left and right sides. The side positioning surface is a vertical plane, and the side positioning surfaces of the second side frames 13 on the left and right sides are parallel. The second side frame 13 forms a mounting hole 130, and the opening of the mounting hole 130 is located on the side positioning surface. The first suction cup 22 is located inside the mounting hole 130.

[0041] It should be noted that even without the side suction mechanism 2, the friction between the second side frame 13 and the second side plate 93, and the outward rebound force of the second side plate 93 after bending, can ensure that the position of the second side plate 93 and the second side frame 13 remains basically unchanged. Using the first suction cup 22 of the side suction mechanism 2 for fixing can further improve the positional stability of the second side plate 93 and reduce the positional error of the second side plate 93.

[0042] Preferably, the side suction mechanism 2 further includes a first driving device 21 and a mounting block 23. The first driving device 21 is a cylinder. Both ends of the first driving device 21 are fixedly connected to the mounting block 23 and the second side frame 13, respectively. The end of the mounting block 23 away from the first driving device 21 is fixedly connected to the first suction cup 22.

[0043] Preferably, it also includes a lifting mechanism 6, which includes a lifting plate 61 and a sixth driving device 62. A recessed second mounting hole 112 is formed in the middle of the placement platform 11. The lifting plate 61 is located in the second mounting hole 112. The sixth driving device 62 is located below the placement platform 11 and drives the lifting plate 61 to move up and down.

[0044] Preferably, the seventh drive device 7 is fixedly connected to the frame 1. The automatic carton sealing machine 8 has transversely rotatable pressure rollers 81 on its front and rear sides below it. The tape outlet of the automatic carton sealing machine 8 is located between the pressure rollers 81 on both sides. Before the tape 90 is applied to the top plate 94, the pressure rollers 81 press down on the top plate 94. After the top plate 94 is pressed, the inner plate 95 contacts the bottom plate 91, ensuring that the facing sides of the top plates 94 do not curl up during sealing, thus increasing the structural strength of the carton after fixing.

[0045] Preferably, the system also includes a first sensor, with the second side frames 13 on both sides fixedly connected to the first sensor facing each other. The first sensor is used to detect whether the item is located above the placement platform 11. When the sealing operation is completed, if the sensor detects an object above the placement platform 11, the seventh drive device 7 will not drive the automatic box sealing machine 8 to move, thus preventing the automatic box sealing machine 8 from hitting objects such as human hands. The first sensor can be a through-beam photoelectric sensor or a reflective photoelectric sensor.

[0046] Preferably, the frame 1 further includes a positioning block 14, which is located above the placement platform 11 and fixedly connected to the placement platform 11. The positioning block 14 contacts the longitudinal end face of the cardboard, positioning the cardboard longitudinally.

[0047] Preferably, the height of the first suction cup 22 is lower than the height of the second suction cup 35. This is because the height of the second side plate 93 adsorbed by the first suction cup 22 is lower than the height of the inner plate 95 adsorbed by the second suction cup 35.

[0048] Preferably, the first drive device 21, the second drive device 31, the third drive device 41, the fourth drive device 47, the fifth drive device 55 and the sixth drive device 62 are electric push rods or cylinders, and the seventh drive device 7 is a linear guide or belt conveyor mechanism.

[0049] It should be noted that "horizontal" refers to... Figure 2 and Figure 4 The left and right directions and the "vertical" direction are in the middle. Figure 4 The vertical direction and Figure 5 The left and right directions and the "vertical" direction are in the middle. Figure 3 and Figure 5 The up and down directions in the middle.

[0050] It should be noted that the carton includes: tape 90, bottom plate 91, first side plate 92, second side plate 93, top plate 94, and inner plate 95. The bottom plate 91 is integrally formed with the first side plate 92 on the front and rear sides respectively. The bottom plate 91 is integrally formed with the second side plate 93 on the left and right sides respectively. The side of the second side plate 93 away from the bottom plate 91 is integrally formed with the top plate 94. The top plate 94 is integrally formed with the inner plate 95 on the front and rear sides respectively. The first side plate 92 and the second side plate 93 are bent upward relative to the bottom plate 91. The top plates 94 on the left and right sides are bent relative to the second side plate 93 and are located above the top plate 94. The inner plate 95 is bent downward relative to the top plate 94 and is located inside the first side plate 92. The tape 90 is fixedly connected to the top plates 94 on the left and right sides and the first side plates 92 on the front and rear sides respectively. A first groove 96 extending laterally is formed between the bottom plate 91 and the first side plate 92 of the cardboard; a second groove 97 extending longitudinally is formed between the bottom plate 91 and the second side plate 93; a third groove 98 extending longitudinally is formed between the second side plate 93 and the top plate 94 of the cardboard; and a fourth groove 99 extending laterally is formed between the top plate 94 and the inner plate 95 of the cardboard. The first groove 96, the second groove 97, the third groove 98, and the fourth groove 99 are all formed by pressing.

[0051] The cardboard structure used to make the boxes is simple, requiring no glue or studs to pre-form a ring, thus eliminating the need for a gluing plate 999. This reduces paper consumption for the same size box, saving costs. Only one application of tape 90 is needed to secure the box (maintaining its shape), reducing processing steps and improving production efficiency. Both the front and rear ends have first side panels 92 and internal panels 95, which reinforce the box's structural strength, improving its compression and impact resistance. Using only one strip of tape for fastening, without glue or studs, makes removing the fasteners easier and reduces the number of steps required to disassemble the box, saving time on cardboard processing before recycling and improving the efficiency of subsequent cardboard recycling.

[0052] A packaging method using the aforementioned packaging machine, characterized by comprising the following steps: Step S1: Position the unfolded flat cardboard above the placement platform 11, then press down the bottom plate 91 in the middle of the cardboard. As the bottom plate 91 moves downward, the second side plates 93 on its left and right sides are squeezed upward by the second side frame 13 until the bottom plate 91 and the second side plates 93 are respectively attached to the placement platform 11 and the second side frame 13. Step S2: Place the goods on top of the base plate 91; Step S3: The second driving device 31 of the first pressing mechanism 3 on the left and right sides respectively drives the end of the holding plate 34 to rotate downward. After the holding plate 34 contacts the top plate 94, it drives the top plate 94 to rotate relative to the second side plate 93 connected to it, so that the included angle below the top plates 94 on the left and right sides is 180 degrees or an obtuse angle. Step S4: The third drive device 41 of the second pressing mechanism 4 at both ends drives one end of the upper pressure plate 45 to rotate downwards, and the upper pressure plate 45 drives the inner plate 95 away from the top plate 94 and bends the inner plate 95 downwards. Step S5: The fourth drive device 47 of the second pressing mechanism 4 at both ends drives the upper pressing plate 45 to move towards each other. The upper pressing plate 45 drives the inner plate 95 away from the top plate 94 to move between the bottom plate 91 and the top plate 94. "The side of the inner plate 95 away from the top plate 94" means that the distance between the contact point of the upper pressing plate 45 or the pressing member 46 and the inner plate 95 and the end face of the inner plate 95 away from the top plate 94 is less than the distance from the contact point to the first groove 96 at the connection between the top plate 94 and the inner plate 95.

[0053] Step S6: The fifth drive device 55 of the flipping mechanism 5 at both ends drives one end of the flip plate 51 to rotate upward, the flip plate 51 contacts the first side plate 92 and drives the first side plate 92 to bend upward until the first side plate 92 contacts the inner plate 95. Step S7: The flip plate 51 is kept in position, and the seventh drive device 7 drives the automatic box sealing machine 8 to move longitudinally. During the movement, the automatic box sealing machine 8 bonds and fixes the tape 90 to the outer surface of the top plate 94 on the left and right sides and the outer surface of the first side plate 92 at the front and rear ends. Step S8: Automatic box sealing machine 8 cuts the tape at 90°. Step S9: The first suction cup 22 is filled with air to release the second side plate 93, the first drive device 21 and the second drive device 31 are reset, the third drive device 41 drives the upper pressure plate 45 to reset to the initial position, the fifth drive device 55 drives the flip plate 51 to reset to the initial position, and the seventh drive device 7 drives the automatic carton sealing machine 8 to reset and leave the top of the carton. Step S10: The sixth drive device 62 drives the lifting plate 61 upward away from the second mounting hole 112, lifting the carton away from the placement platform 11.

[0054] Working principle: During the work, the unfolded flat cardboard (such as...) is first laid out manually or mechanically. Figure 8As shown, the cardboard is placed on the placement platform 11 from top to bottom. During placement, the bottom plate 91 is pressed down, and the second side plate 93 is bent upward along the second groove 97 on the cardboard by the pressure of the second side frames 13 on both sides until the bottom plate 91 contacts and adheres to the placement platform 11. Then, the end face of one end of the first side plate 92 is attached to the positioning block 14 to position the cardboard to the placement platform 11. At this time, the second side plate 93 is attached to the corresponding second side frame 13, and the second side plate 93 is basically perpendicular to the bottom plate 91. The first suction cup 22 is attached to the second side plate 93 and vacuum adsorbs and fixes the second side plate 93.

[0055] Afterwards, the goods are placed on the bottom plate 91 manually or mechanically, with the goods not exceeding the bottom plate 91 and the height less than the height of the second side plate 93 after bending, so as to ensure that the goods can be contained in the folded carton.

[0056] Then, the second driving device 31 extends to drive the pressure plate 34 to rotate, and the second suction cup 35 adheres to the top plate 94, vacuum adsorbing and fixing the top plate 94. Afterwards, the second driving device 31 continues to drive the end of the pressure plate 34 where the second suction cup 35 is mounted to rotate downwards, turning the top plate 94 downwards along the third groove 98. When the left and right top plates 94 are parallel or the left and right top plates 94 form a certain angle with the horizontal plane (e.g.... Figure 10 As shown, after the top plates 94 on the left and right sides are higher on the opposite side, the second drive device 31 maintains its position, so that the top plates 94 on the left and right sides are fixed relative to the bottom plate 91 and the placement platform 11.

[0057] Then, the push rod of the third drive device 41 extends, driving the mounting bracket 44 to rotate around the first fixed shaft 43. The upper pressure plate 45 rotates downward with the first fixed shaft 43. After the upper pressure plate 45 or the pressing member 46 contacts the side of the inner plate 95 away from the top plate 94, it presses down and bends the inner plate 95 at the longitudinal end of the top plate 94 along the fourth groove 99. If the top plates 94 on the left and right sides form a certain angle with the horizontal plane (e.g. Figure 10 As shown, this can increase the gap between the inner plate 95 and the bottom plate 91 and the second side plate 93, reduce the frictional resistance between the inner plate 95 and the bottom plate 91 and the second side plate 93, and facilitate the smooth downward bending of the inner plate 95.

[0058] Because the lever arm from the point where the inner plate 95 is subjected to pressure from the pressing member 46 to the connection between the top plate 94 and the inner plate 95 is relatively large, the force required by the third drive device 41 is relatively small. The third drive device 41 can use a cylinder with smaller force and volume, which is convenient for reducing the size of the equipment and reducing the cost of the equipment.

[0059] Because the pressing member 46 contacts the inner plate 95 at a position relatively far from the top plate 94, simply rotating the pressing member 46 to press the inner plate 95 is insufficient to completely push the inner plate 95 into the carton 9. After the pressing member 46 reaches its lowest position, the push rod of the fourth drive device 47 retracts, driving the first fixed shaft 43 to move closer to the frame 1, as... Figure 18 As shown. The pressing member 46 moves towards the interior of the carton 9, pushing the inner plate 95 completely into the carton 9. It should be noted that during the movement of the push rod of the fourth drive device 47, the third drive device 41 extends and retracts adaptively to match the movement of the mounting bracket 44.

[0060] Subsequently, the push rod of the fifth drive device 55 extends, driving the second mounting bracket 54 and the flap 51 to rotate around the third axis 52. The end of the flap 51 away from the third axis 52 rotates upward away from the first mounting hole 111 and contacts the lower side surface of the first side plate 92. The flap 51 pushes the first side plate 92 to bend upward around the first groove 96 until the first side plate 92 is substantially perpendicular to the base plate 91.

[0061] Next, air is injected into the second suction cup 35 to release the top plate 94. Then, the flip plate 51 and the first suction cup 22 limit the carton to prevent some cardboard from springing back. The seventh drive device 7 drives the automatic carton sealing machine 8 through the gap between the two top plates 94. The automatic carton sealing machine 8 applies tape 90 to the upper sides of the top plates 94 on both the left and right sides and the outer sides of the first side plates 92 at both the front and rear ends, and then cuts the tape 90. The tape 90 adheres and fixes the top plate 94 and the first side plates 92, and the carton 9 is sealed, fixing the shape of the carton into a cuboid and sealing the goods inside the carton.

[0062] After the carton is sealed, the first suction cup 22 is filled with air to release the second side plate 93, the first drive device 21 and the second drive device 31 are reset, the third drive device 41 drives the upper pressure plate 45 to reset to the initial position, the fifth drive device 55 drives the flip plate 51 to reset to the initial position, the seventh drive device 7 drives the automatic carton sealing machine 8 to reset and leave the top of the carton, and the sixth drive device 62 drives the lifting plate 61 to move upward away from the second mounting hole 112, lifting the carton away from the placement platform 11.

[0063] Afterwards, the folded cardboard boxes are removed manually or mechanically from the lifting plate 61. The sixth drive unit 62 drives the lifting plate 61 to descend and reset, ready to load new cardboard.

[0064] It should be noted that the mechanical equipment for feeding in cardboard and taking out cartons can be a robotic arm or a movable gripper.

[0065] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A packaging machine, characterized in that, include: The frame (1) includes a first pressing mechanism (3), a second pressing mechanism (4), an upward flipping mechanism (5), and a sealing mechanism. The frame (1) includes a placement platform (11) and a second side frame (13). The second side frame (13) is located on the left and right sides of the placement platform (11) and is fixedly connected to the placement platform (11). The first pressing mechanism (3) is provided on the left and right sides of the frame (1). The first pressing mechanism (3) includes a second driving device (31) and a holding plate (34). The second driving device (31) drives the holding plate (34) to move up and down above the placement platform (11). The second pressing mechanism (4) and the upward flipping mechanism are provided at the front and rear ends of the frame (1), respectively. The second pressing mechanism (4) includes a third driving device (41), an upper pressing plate (45) and a fourth driving device (47). The third driving device (41) and the fourth driving device (47) drive the upper pressing plate (45) to move up and down and back and forth above the placement platform (11) respectively. The flipping mechanism (5) includes a flipping plate (51) and a fifth driving device (55). The fifth driving device (55) drives the flipping plate (51) to move up and down above the placement platform (11). The sealing mechanism includes a seventh driving device (7) and an automatic box sealing machine (8). The seventh driving device (7) drives the automatic box sealing machine (8) to move longitudinally above the placement platform (11).

2. The packaging machine according to claim 1, characterized in that: The upper pressure plate (45) and the flip plate (51) rotate relative to the placement platform (11). The rotation axis of the upper pressure plate (45) and the rotation axis of the flip plate (51) are parallel and both are horizontal. The initial height of the end of the upper pressure plate (45) away from its rotation axis is higher than the initial height of the end of the flip plate (51) away from its rotation axis.

3. A packaging machine according to claim 2, characterized in that: The frame (1) further includes a first side frame (12), which is located at the front and rear ends of the placement platform (11) and extends downward. The second pressing mechanism (4) further includes a first rotating shaft (42), a first fixed shaft (43), and a mounting bracket (44). The axis of the first rotating shaft (42) and the first fixed shaft (43) is transverse. The two ends of the mounting bracket (44) are rotatably connected to the first rotating shaft (42) and the first fixed shaft (43) respectively. The mounting bracket (44) is fixedly connected to the upper pressure plate (45). The two ends of the third driving device (41) are connected to the first side frame (12) and the first rotating shaft (42) respectively. The housing of the fourth driving device (47) is fixedly connected to the frame (1). The push rod of the fourth driving device (47) is fixedly connected to the first fixed shaft (43). The third driving device (41) drives the first rotating shaft (42) and the mounting bracket (44) to rotate around the first fixed shaft (43). The placement platform (11) has recessed first mounting holes (111) at both ends. The flip plate (51) is located in the first mounting hole (111). The flipping mechanism (5) also includes a third shaft (52), a fourth shaft (53) and a second mounting frame (54) located below the placement platform (11). The two corresponding flip plates (51) are fixedly connected to the second mounting frame (54) at opposite ends. The two ends of the second mounting frame (54) are rotatably connected to the third shaft (52) and the fourth shaft (53) respectively. The third shaft (52) is fixedly connected to the bottom of the placement platform (11). The fifth driving device (55) is located below the placement platform (11) and connected to the fourth shaft (53). The fifth driving device (55) drives the fourth shaft (53) and the second mounting frame (54) to rotate around the third shaft (52).

4. A packaging machine according to claim 2, characterized in that: The second pressing mechanism (4) further includes a pressing member (46), wherein the upper pressing plate (45) is fixedly or rotatably connected to the pressing member (46) at one end away from its rotation axis, and the pressing member (46) has an arc surface.

5. A packaging machine according to claim 1, characterized in that: The retaining pressure plate (34) rotates relative to the second side frame (13), and the rotation axis of the retaining pressure plate (34) is longitudinal; the first pressing mechanism (3) also includes a second suction cup (35), and the ends of the pressure plates (34) of the first pressing mechanism (3) on the left and right sides are fixedly connected to the second suction cup (35).

6. A packaging machine according to claim 5, characterized in that: The first pressing mechanism (3) further includes a first shaft (32) and a second shaft (33). The first shaft (32) and the second shaft (33) are parallel and their axial directions are longitudinal. The second shaft (33) is located between the first shaft (32) and the second suction cup (35). The second shaft (33) is fixedly connected to the holding plate (34) and rotatably connected to the second side frame (13). The first shaft (32) is connected to the holding plate (34). The second driving device (31) is a cylinder. The two ends of the second driving device (31) are rotatably connected to the second side frame (13) and the first shaft (32) respectively.

7. A packaging machine according to claim 1, characterized in that: It also includes a side suction mechanism (2), which includes a first suction cup (22), and the second side frames (13) on the left and right sides are respectively connected to the first suction cup (22) on opposite sides; a horizontal lower positioning surface is formed above the placement platform (11), and a side positioning surface is formed on opposite sides of the second side frames (13) on the left and right sides. The side positioning surface is a vertical plane, and the side positioning surfaces of the second side frames (13) on the left and right sides are parallel. The second side frame (13) has a mounting hole (130), and the opening of the mounting hole (130) is located on the side positioning surface. The first suction cup (22) is located inside the mounting hole (130).

8. A packaging machine according to claim 7, characterized in that: The side suction mechanism (2) further includes a first driving device (21) and a mounting block (23). The first driving device (21) is a cylinder. Both ends of the first driving device (21) are fixedly connected to the mounting block (23) and the second side frame (13) respectively. The end of the mounting block (23) away from the first driving device (21) is fixedly connected to the first suction cup (22).

9. A packaging machine according to claim 1, characterized in that: The seventh drive device (7) is fixedly connected to the frame (1). The automatic box sealing machine (8) has pressure rollers (81) with a transverse axis on the front and rear sides respectively. The tape outlet of the automatic box sealing machine (8) is located between the pressure rollers (81) on the front and rear sides.

10. A packaging method using a packaging machine as described in any one of claims 1 to 9, characterized in that, Includes the following steps: Step S1: Position the unfolded flat cardboard above the placement platform (11), and then press down the bottom plate (91) in the middle of the cardboard. As the bottom plate (91) moves downward, the second side plates (93) on its left and right sides are squeezed upward by the second side frame (13) until the bottom plate (91) and the second side plate (93) are respectively attached to the placement platform (11) and the second side frame (13). Step S2: Place the goods on top of the base plate (91); Step S3: The second drive device (31) of the first pressing mechanism (3) on the left and right sides respectively drives the end of the holding plate (34) to rotate downward. After the holding plate (34) contacts the top plate (94), it drives the top plate (94) to rotate relative to the second side plate (93) connected to it, so that the included angle between the bottom of the top plates (94) on the left and right sides is 180 degrees or an obtuse angle. Step S4: The third drive device (41) of the second pressing mechanism (4) at both ends drives one end of the upper pressure plate (45) to rotate downwards, and the upper pressure plate (45) drives the inner plate (95) away from the top plate (94) and bends the inner plate (95) downwards. Step S5: The fourth drive device (47) of the second pressing mechanism (4) at both ends drives the upper pressure plate (45) to move towards each other. The upper pressure plate (45) drives the inner plate (95) to move away from the top plate (94) to the space between the bottom plate (91) and the top plate (94). Step S6: The fifth drive device (55) of the flipping mechanism (5) at both ends drives one end of the flip plate (51) to rotate upward, the flip plate (51) contacts the first side plate (92) and drives the first side plate (92) to bend upward until the first side plate (92) contacts the inner plate (95); Step S7: The flip plate (51) is kept in position, and the seventh drive device (7) drives the automatic box sealing machine (8) to move longitudinally. During the movement, the automatic box sealing machine (8) bonds and fixes the tape (90) to the outer surface of the top plate (94) on the left and right sides and the outer surface of the first side plate (92) at the front and rear ends. Step S8: Automatic box sealing machine (8) cuts the tape.

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