A compact paper wrapping machine

Abstract

A compact paper wrapping machine comprises a frame, a bottle conveying system arranged on the upper layer of the frame and a paperboard conveying system arranged on the lower layer of the frame. The bottle conveying system comprises a bottle feeding mechanism, a bottle distributing mechanism and a bottle pushing mechanism in sequence according to the material conveying direction. The paperboard conveying system comprises a paperboard bin, a paper taking mechanism and a paperboard climbing mechanism in sequence according to the material conveying direction. The output end of the bottle pushing mechanism is connected with the output end of the paperboard climbing mechanism, and a folding conveying mechanism, a lower pressing box forming mechanism and an upper pressing box forming mechanism are arranged in sequence behind the intersection point. The present application has unreasonable structure layout, compact structure and small overall volume.

Description

Technical Field

[0001] This invention relates to packaging machinery and equipment, and more particularly to a compact paper wrapping machine. Background Technology

[0002] A paper packaging machine is a fully automatic packaging machine that uses single-sheet cardboard to group and package containers such as glass bottles and cans. The basic working principle of a paper packaging machine is as follows: Containers are conveyed to a bottle-splitting device via a bottle-feeding conveyor. The bottle-splitting device groups multiple containers and conveys them forward to a bottle-fed device. Simultaneously, cardboard in the cardboard bin is conveyed sheet by sheet by a paper-feeding device. The bottle-fed device's bottle-fed rods then transport the groups of containers onto the conveyed cardboard. A folding device folds the cardboard, and a box-forming device glues and presses the cardboard into boxes before finally conveying them out. Existing paper packaging machines, such as the one described in Chinese Patent Publication No. CN106742310B, include a frame with a bottle feeding conveyor, a bottle separating device, a cardboard bin, a paper feeding device, a bottle pushing device, a side folding device, and a box forming device. A pneumatic constant pressure paper pushing device is installed at the cardboard bin, comprising a paper pushing column, a paper pushing frame, a paper pushing transmission mechanism, a paper pushing slider, a stop bar, and a locking cylinder assembly. An anti-jamming device is installed on the bottle pushing frame, comprising a cylinder, a slide block, a slide rail, and a chain guide block. A mechanical page-tapping device is located between the bottle pushing device and the box forming device, comprising a transmission mechanism, a connecting plate, a drive shaft, a front connecting rod, a connecting rod, a rear connecting rod, a page-tapping frame, and a page-tapping plate. The existing paper packaging machine has an unreasonable structural layout, resulting in a large overall size. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a compact paper packaging machine with an unreasonable structural layout, a compact structure, and a small overall volume.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is: a compact paper packaging machine, including a frame, a bottle conveying system disposed on the upper layer of the frame, and a cardboard conveying system disposed on the lower layer of the frame;

[0005] The bottle conveying system includes, in sequence according to the material conveying direction, a bottle feeding mechanism, a bottle separating mechanism, and a bottle guiding mechanism. The bottle feeding mechanism includes a mesh conveyor assembly, partitions on the mesh conveyor assembly, and a quick-adjustable bottle guide assembly above the mesh conveyor assembly. Adjacent partitions and the mesh conveyor assembly form a single-bottle conveying channel. The quick-adjustable bottle guide assembly includes a mounting beam spanning above the mesh conveyor assembly. Both ends of the mounting beam are fixed to the sides of the mesh conveyor assembly by brackets. The brackets have L-shaped grooves, and both ends of the mounting beam have rotating shafts located within the L-shaped grooves. One end of the mounting beam's rotating shaft is connected to a handle. The mounting beam is provided with a mounting groove, and the mounting groove is provided with several bottle guiding components; the output end of the single bottle conveying channel is connected to the bottle group conveying channel; the bottle separating mechanism and the bottle pushing mechanism are located above the bottle group conveying channel; the bottle separating mechanism includes a first chain located on both sides of the bottle group conveying channel, a stop bar located between the two first chains, a first sprocket group, and a first servo motor; the first servo motor drives the first chain through the first sprocket group; the bottle pushing mechanism includes a second chain located on both sides of the bottle group conveying channel, a bottle pushing rod located between the two second chains, a second sprocket group, and a second servo motor; the second servo motor drives the second chain through the second sprocket group.

[0006] The cardboard conveying system includes, in sequence according to the material conveying direction, a cardboard bin, a paper-picking mechanism, and a cardboard climbing mechanism; the cardboard bin includes a cardboard conveyor chain, guardrails on both sides of the cardboard conveyor chain, a paper pusher at the input end of the cardboard conveyor chain, and a paper-pressing assembly above the output end of the cardboard conveyor chain; the paper-picking mechanism includes a suction cup assembly and a transmission assembly, with the swing arm driving the suction cup assembly through the transmission assembly; the transmission assembly includes a first swing arm and a second swing arm, one end of the first swing arm being pivotally connected to a support seat via a first pin, and the other end of the first swing arm being connected to a second... A pin shaft is connected to one end of the second swing arm. A first pulley is fitted on the first pin shaft, and a second pulley is fitted on the second pin shaft. The first pulley and the second pulley are driven by a synchronous belt. One end of the swing arm acts on the first swing arm. The suction cup assembly is connected to the second swing arm. The cardboard climbing mechanism includes a climbing frame, a guide rail assembly mounted on the climbing frame, and an adjustment mechanism for driving the guide rail assembly to move. The guide rail assembly includes a guide rail, a push block that moves along the guide rail, and a third chain that drives the push block. A third servo motor drives the third chain through a third sprocket set.

[0007] The output end of the bottle-driving mechanism intersects with the output end of the cardboard climbing mechanism, and a folding conveyor mechanism, a lower pressure box forming mechanism, and an upper pressure box forming mechanism are sequentially arranged behind the intersection point.

[0008] As an improvement, the input end of the bottle separating mechanism is provided with a cylinder bottle pressing mechanism. The cylinder bottle pressing mechanism includes a crossbeam plate spanning above the bottle group conveying channel, a bottle pressing cylinder mounted on the crossbeam plate, a pressure plate connected to the bottle pressing cylinder, and a lifting assembly for driving the crossbeam plate to rise and fall.

[0009] As an improvement, a tensioning pulley for pressing the timing belt is pivotally connected to the first swing arm of the paper taking mechanism.

[0010] As an improvement, the first swing arm of the paper taking mechanism includes two opposing first side plates, which are connected by a first connector and are located on the outside of the support base; the support base includes two opposing second side plates, which are connected by a second connector and are located between the two second side plates.

[0011] As an improvement, the adjusting mechanism of the cardboard climbing mechanism includes a lead screw and a slider assembly that cooperates with the lead screw. The lead screw is located inside a connecting tube. The slider assembly includes a metal body that is sleeved outside the connecting tube, plastic sleeves located at both ends of the metal body, and a nut located inside the metal body. The plastic sleeves are slidably engaged with the connecting tube, and the nut is threadedly connected to the lead screw.

[0012] As an improvement, the lead screw includes a first threaded section and a second threaded section, the first threaded section cooperating with a first slider assembly, and the second threaded section cooperating with a second slider assembly; the thread directions of the first threaded section and the second threaded section are the same or opposite.

[0013] As an improvement, the metal body is provided with a through groove that extends through both ends. The through groove includes a receiving groove located in the middle and a limiting groove located on one side of the metal body. The limiting groove is connected to the receiving groove. The nut is located in the receiving groove and a limiting block is provided on the nut. The limiting block is located in the limiting groove.

[0014] As an improvement, the connecting pipe is provided with mounting components at both ends. The mounting components include a mounting plate, a bearing disposed in the mounting plate, and a pipe opening fixing seat fixed on one side of the mounting plate. One end of the pipe opening fixing seat is inserted into the connecting pipe, and the end of the lead screw passes through the pipe opening fixing seat and the bearing in sequence.

[0015] The beneficial effects of this invention compared to the prior art are:

[0016] In the bottle feeding mechanism of this invention, the quick-adjustable bottle guide assembly can switch between different bottle guide components by rotating the mounting beam, which can achieve the purpose of quick switching for different bottle types;

[0017] The bottle-separating mechanism of this invention is located above the bottle and is separate from the conveyor belt below. Its overall length does not need to be adapted to the length of the conveyor belt below, so the overall length of the bottle-separating mechanism is shorter.

[0018] In the paper-taking mechanism of this invention, a synchronous belt is used to realize the rotational drive and linkage of the first swing arm and the second swing arm. This structure is simple and compact and occupies little space.

[0019] In the adjustment mechanism of this invention, a metal body serves as a carrier, with plastic sleeves installed at both ends and a nut installed in the middle. The nut is threadedly connected to a lead screw. The rotation of the lead screw drives the nut and the metal body to move linearly. The metal body does not contact the connecting pipe, while the plastic sleeves slide in contact with the connecting pipe, resulting in less friction and easier adjustment. The lead screw is set inside the connecting pipe, which serves as a guide component for the slider assembly. The combined size of the two components is smaller. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the paper packaging machine of the present invention.

[0021] Figure 2 This is a top view of the bottle feeding mechanism.

[0022] Figure 3 This is a side view of the combination of the bottle-separating mechanism and the bottle-driving mechanism.

[0023] Figure 4 This is a three-dimensional diagram of the combined bottle-separating mechanism and bottle-driving mechanism.

[0024] Figure 5 This is a schematic diagram of a cardboard warehouse.

[0025] Figure 6 This is a schematic diagram of the paper-fetching mechanism.

[0026] Figure 7 This is a cross-sectional view of the paper-fetching mechanism.

[0027] Figure 8 This is a side view of the cardboard climbing mechanism.

[0028] Figure 9 This is a 3D diagram of a cardboard climbing mechanism.

[0029] Figure 10 This is a side view of the adjustment mechanism.

[0030] Figure 11 This is a top view of the adjustment mechanism.

[0031] Figure 12 This is a top view of the metal object.

[0032] Figure 13 This is a schematic diagram of the end face of the metal body. Implementation

[0033] The present invention will now be further described with reference to the accompanying drawings.

[0034] like Figure 1As shown, a compact paper packaging machine includes a frame, a bottle conveying system on the upper layer of the frame, and a cardboard conveying system on the lower layer of the frame. The bottle conveying system, in the material conveying direction, includes a bottle feeding mechanism 1, a bottle separating mechanism 3, and a bottle pushing mechanism 4. The cardboard conveying system, in the material conveying direction, includes a cardboard bin 5, a paper picking mechanism 6, and a cardboard climbing mechanism 7. The output end of the bottle pushing mechanism 4 intersects with the output end of the cardboard climbing mechanism 7, and a folding conveying mechanism 8, a lower pressure box forming mechanism 9, and an upper pressure box forming mechanism 10 are sequentially located behind the intersection point.

[0035] like Figure 2 As shown, the bottle feeding mechanism 1 includes a mesh conveyor assembly 13, partitions 12 disposed on the mesh conveyor assembly 13, and a quick-adjustable bottle guide assembly 11 disposed above the mesh conveyor assembly 13. Adjacent partitions 12 and the mesh conveyor assembly 13 form a single-bottle conveying channel, and bottles are conveyed on the mesh conveyor assembly 13, and the bottles are arranged in sequence within the single-bottle conveying channel. The quick-adjustable bottle guide assembly 11 includes a mounting beam 111 spanning above the mesh conveyor assembly 13. Both ends of the mounting beam 111 are fixed to the sides of the mesh conveyor assembly 13 via brackets. The brackets have L-shaped grooves, and both ends of the mounting beam 111 have rotating shafts located within the L-shaped grooves. One end of the mounting beam 111's rotating shaft is connected to a handle 112, allowing the mounting beam 111 to rotate via the handle 112. The handle 112 has a quick-release function; locking the handle 112 secures the mounting beam 111. The mounting beam 111 has mounting grooves, on which several bottle guide components 113 are mounted. In this embodiment, the mounting beam 111 is made of aluminum alloy profile, with mounting grooves on all four sides. Different bottle guide components 113 are mounted on the four sides of the aluminum alloy profile. Rotating the mounting beam 111 switches between different bottle guide components 113, which are suitable for guiding bottles of different shapes. The output end of the single bottle conveying channel is connected to the bottle group conveying channel. After being sorted by the single bottle conveying channel, the bottles form a bottle array group and enter the bottle group conveying channel.

[0036] like Figure 3 , 4As shown, the bottle separating mechanism 3 and the bottle conveying mechanism 4 are located above the bottle group conveying channel. The bottle separating mechanism 3 includes a first chain 31 located on both sides of the bottle group conveying channel, a stop bar 32 located between the two first chains 31, a first sprocket group, and a first servo motor. The first servo motor drives the first chain 31 through the first sprocket group. There are three stop bars 32 distributed in the bottle separating mechanism 3, and the spacing between each stop bar 32 is equal. Each stop bar 32 is driven by an independent servo motor. The bottle separating mechanism 3 is located above the bottles and is separated from the conveyor belt below. Its overall length does not need to be adapted to the length of the conveyor belt below, so the overall length of the bottle separating mechanism 3 is shorter. The input end of the bottle separating mechanism 3 is equipped with a cylinder bottle pressing mechanism 2. The cylinder bottle pressing mechanism 2 includes a crossbeam plate spanning above the bottle group conveying channel, a bottle pressing cylinder mounted on the crossbeam plate, a pressure plate connected to the bottle pressing cylinder, and a lifting assembly that drives the crossbeam plate to rise and fall. The lifting assembly includes a screw, a nut that cooperates with the screw, and a hand crank. The hand crank drives the screw through a belt, and the rotation of the screw is converted into the up and down movement of the nut. Since the nut is connected to the crossbeam plate, the nut drives the crossbeam plate to rise and fall. The front end of the bottle separating mechanism 3 cooperates with the cylinder bottle pressing mechanism, and the height can be easily adjusted. The bottle-driving mechanism 4 includes second chains 41 located on both sides of the bottle group conveying channel, a bottle-driving rod 42 disposed between the two second chains 41, a second sprocket set, and a second servo motor. The second servo motor drives the second chains 41 through the second sprocket set. The bottle-driving mechanism 4 uses an independent servo motor to drive the double chains to move the bottle-driving rod 42, pushing the bottle groups that have been sorted according to requirements evenly onto the cardboard, maintaining synchronization with the main machine and ensuring the stability of the bottle groups during operation, thereby greatly improving production efficiency.

[0037] like Figure 5 As shown, the cardboard bin 5 includes a cardboard conveyor chain 52, guardrails 53 on both sides of the cardboard conveyor chain 52, a paper pusher 51 at the input end of the cardboard conveyor chain 52, and a paper pressing assembly 54 above the output end of the cardboard conveyor chain 52. The paper pressing assembly 54 includes a paper pressing cylinder 542, a scissor-type telescopic assembly 541, and a pressure plate 543. Guardrails 53 are installed on both sides of the cardboard bin 5, and can be easily adjusted manually using random tools according to the width of the cardboard.

[0038] like Figure 6 , 7As shown, the paper-taking mechanism 6 is used to transport the cardboard from the paper grid bin to the cardboard climbing mechanism 7. The paper-taking mechanism 6 includes a suction cup assembly 63 and a transmission assembly 62 located at both ends of the suction cup assembly 63. The cam mechanism drives the transmission assembly 62 to drive the suction cup assembly 63 via a rocker arm 61. The transmission assembly 62 includes a first rocker arm 621 and a second rocker arm 622. One end of the first rocker arm 621 is pivotally connected to the support base 64 via a first pin 623. The other end of the first rocker arm 621 is connected to one end of the second rocker arm 622 via a second pin 624. A first pulley 628 is fitted on the first pin 623, and a second pulley 626 is fitted on the second pin 624. The first pulley 628 and the second pulley 626 are driven by a synchronous belt 625. A tensioning pulley 627 for pressing the synchronous belt 625 is pivotally connected to the first rocker arm 621. One end of the swing arm 61 is connected to the first swing arm 621 via a ball joint, and the swing arm 61 drives the first swing arm 621 to swing back and forth. The suction cup assembly 63 is connected to the second swing arm 622; the suction cup assembly 63 includes a mounting beam 632 and a plurality of suction cups 634 disposed on the mounting beam 632. The mounting beam 632 is made of aluminum alloy profile, and the suction cups 634 are fixed to the mounting beam 632 by quick locks 633, and the position of the suction cups 634 can be adjusted as needed; the second swing arm 622 is provided with a profile 631, and the end of the mounting beam 632 is fixed to a mounting plate 635. The mounting plate 635 is fixed to the profile 631 by quick locks, and the position of the mounting beam 632 can be adjusted as needed. A support beam 65 is provided between the support seats 64 corresponding to the two end transmission assemblies 62. The first swing arm 621 includes two opposing first side plates connected by a first connector, and the two first side plates are located on the outside of the support base 64. The support base 64 includes two opposing second side plates connected by a second connector, and the first pulley 628 is located between the two second side plates. The cam mechanism drives the swing rod 61 to reciprocate, the swing rod 61 drives the first swing arm 621 to swing around the first pin 623, the first pin 623 rotates and drives the first pulley 628, the first pulley 628 drives the second pulley 626 through the synchronous belt 625, the second pulley 626 drives the second pin 624, and the second pin 624 drives the second swing arm 622 to swing. The swing angles of the first swing arm 621 and the second swing arm 622 cooperate with each other to make the suction cup assembly 63 move along a predetermined trajectory. This invention uses the synchronous belt 625 to realize the rotational drive and linkage of the first swing arm 621 and the second swing arm 622. This structure is simple and compact and occupies little space.

[0039] like Figure 8 , 9As shown, the cardboard climbing mechanism 7 includes a climbing frame 71, a guide rail assembly 72 mounted on the climbing frame 71, and an adjustment mechanism 73 for driving the guide rail assembly 72 to move horizontally. The guide rail assembly 72 includes a guide rail, a push block 722 that travels along the guide rail, and a third chain 721 that drives the push block 722. A third servo motor drives the third chain 721 through a third sprocket set. After the cardboard is placed on the cardboard climbing mechanism 7 by the paper taking mechanism 6, the third chain 721, in conjunction with the push block 722, conveys the cardboard upwards. The mechanism adopts a fully enclosed chain track design to prevent contamination of the carton surface and reduce chain derailment. With independent servo control, the cardboard and bottles are synchronously conveyed to the packaging and glue spraying area. Even when there are no bottles, there is always cardboard on the ramp. When the bottles arrive, the cardboard begins to be conveyed, always ensuring that the bottles and cardboard are synchronized. This effectively prevents the phenomenon of having bottles but no paper or having paper but no bottles. Moreover, a fast synchronization adjuster is added to this section, which greatly shortens the time for changing carton types and saves equipment changeover time.

[0040] like Figures 10 to 13As shown, the adjusting mechanism 73 includes a screw rod 731, a connecting pipe 732, and a slider assembly 733 that cooperates with the screw rod 731. The screw rod 731 is arranged inside the connecting pipe 732. The connecting pipe 732 is a square pipe. Both ends of the screw rod 731 extend outside the connecting pipe 732. One end of the screw rod 731 is connected to a handwheel 735, and the screw rod 731 is rotated by the handwheel 735. Installation assemblies 734 are provided at both ends of the connecting pipe 732. The installation assembly 734 includes a mounting plate, a bearing arranged inside the mounting plate, and a pipe mouth fixing seat fixed on one side of the mounting plate. One end of the pipe mouth fixing seat is inserted into the connecting pipe 732. The end of the screw rod 731 sequentially passes through the pipe mouth fixing seat and the bearing. The screw rod 731 includes a first thread segment 7311 and a second thread segment 7312. A bearing seat 736 is arranged inside the connecting pipe 732 between the first thread segment 7311 and the second thread segment 7312. The screw rod 731 passes through the bearing seat 736 to increase the stability of the screw rod 731. The first thread segment 7311 cooperates with the first slider assembly, and the second thread segment 7312 cooperates with the second slider assembly. The thread directions of the first thread segment 7311 and the second thread segment 7312 are the same or opposite. By rotating the screw rod 731, the two slider assemblies 733 can approach or move away from each other. The slider assembly 733 includes a metal body 7331 sleeved outside the connecting pipe 732, plastic sleeves 7332 arranged at both ends of the metal body 7331, and a nut 7334 arranged inside the metal body 7331 and threadedly connected to the screw rod 731. The metal body 7331 is in a shape of a rectangle with a hole in the middle. A through groove is arranged inside the metal body 7331 and penetrates both ends. The through groove includes a receiving groove in the middle and a limiting groove arranged on one side of the metal body 7331. The limiting groove is communicated with the receiving groove. The nut 7334 can be placed into the receiving groove from one end of the metal body 7331. A limiting block 7335 is arranged on the nut 7334. The limiting block 7335 is arranged in the limiting groove. The rotation of the nut 7334 is restricted by the limiting groove. When the screw rod 731 is rotated, it can be converted into a linear motion of the metal body 7331. In this embodiment, the metal body 7331 is an aluminum alloy profile, and several mounting grooves are arranged on the surface of the metal body 7331. A connecting plate 7333 is arranged on one side of the metal body 7331 corresponding to the limiting groove. The connecting plate 7333 is connected to the metal body 7331 by bolts. The connecting plate 7333 is connected to the limiting block 7335 by bolts. The guide rail assembly can be installed on the metal body, and the position of the guide rail assembly can be changed by adjusting the position of the slider assembly 733. The plastic sleeve 7332 is connected to the metal body 7331 by bolts. The plastic sleeve 7332 is in a shape of a rectangle with a hole in the middle. The plastic sleeve 7332 is sleeved outside the connecting pipe 732 and is in sliding fit with the connecting pipe 732. When the plastic sleeve 7332 is worn, it is convenient to replace.The metal body 7331 serves as a carrier, with plastic sleeves 7332 installed at both ends and a nut 7334 installed in the middle. The nut 7334 is threadedly connected to the lead screw 731. The rotation of the lead screw 731 drives the nut 7334 and the metal body 7331 to move linearly. The metal body 7331 does not contact the connecting tube 732, while the plastic sleeves 7332 slide against the connecting tube 732, resulting in less friction and easier adjustment. The lead screw 731 is set inside the connecting tube 732, which serves as a guide component for the slider assembly. The combination of the two results in a smaller overall size. The lead screw 731, connecting tube 732, and slider assembly are integrated into one unit, making overall installation more convenient. The metal body 7331 serves as a carrier for the installation of the guide rail assembly.

[0041] The folding conveyor uses an anti-slip roller chain, increasing friction to prevent box slippage and avoid problems such as poor folding, box skewing, and box jamming. Adjusting and changing bottle types is quick and easy, requiring no tools, and the shaking position is very effortless. Two folding trays share a single motor, connected by a sector gear; for bottles with significantly different shapes, the entire folding tray set can be replaced. Each of the upper and lower pressure boxes uses a servo motor. The front and rear dimensions of the clamping blocks are adjusted by handwheel. When the handle at the end of the handwheel is opened, only two chains move, allowing adjustment of the position of the front and rear clamping blocks on both chains according to the box length.

Claims

1. A compact paper packaging machine, comprising a frame, a bottle conveying system disposed on the upper layer of the frame, and a cardboard conveying system disposed on the lower layer of the frame; characterized in that: The bottle conveying system includes, in sequence according to the material conveying direction, a bottle feeding mechanism, a bottle separating mechanism, and a bottle guiding mechanism. The bottle feeding mechanism includes a mesh conveyor assembly, partitions on the mesh conveyor assembly, and a quick-adjustable bottle guide assembly above the mesh conveyor assembly. Adjacent partitions and the mesh conveyor assembly form a single-bottle conveying channel. The quick-adjustable bottle guide assembly includes a mounting beam spanning above the mesh conveyor assembly. Both ends of the mounting beam are fixed to the sides of the mesh conveyor assembly by brackets. The brackets have L-shaped grooves, and both ends of the mounting beam have rotating shafts located within the L-shaped grooves. One end of the mounting beam's rotating shaft is connected to a handle. The mounting beam is provided with a mounting groove, and the mounting groove is provided with several bottle guiding components; the output end of the single bottle conveying channel is connected to the bottle group conveying channel; the bottle separating mechanism and the bottle pushing mechanism are located above the bottle group conveying channel; the bottle separating mechanism includes a first chain located on both sides of the bottle group conveying channel, a stop bar located between the two first chains, a first sprocket group, and a first servo motor; the first servo motor drives the first chain through the first sprocket group; the bottle pushing mechanism includes a second chain located on both sides of the bottle group conveying channel, a bottle pushing rod located between the two second chains, a second sprocket group, and a second servo motor; the second servo motor drives the second chain through the second sprocket group. The cardboard conveying system includes, in sequence according to the material conveying direction, a cardboard bin, a paper-picking mechanism, and a cardboard climbing mechanism; the cardboard bin includes a cardboard conveyor chain, guardrails on both sides of the cardboard conveyor chain, a paper pusher at the input end of the cardboard conveyor chain, and a paper-pressing assembly above the output end of the cardboard conveyor chain; the paper-picking mechanism includes a suction cup assembly and a transmission assembly, with the swing arm driving the suction cup assembly through the transmission assembly; the transmission assembly includes a first swing arm and a second swing arm, one end of the first swing arm being pivotally connected to a support seat via a first pin, and the other end of the first swing arm being connected to a second... A pin shaft is connected to one end of the second swing arm. A first pulley is fitted on the first pin shaft, and a second pulley is fitted on the second pin shaft. The first pulley and the second pulley are driven by a synchronous belt. One end of the swing arm acts on the first swing arm. The suction cup assembly is connected to the second swing arm. The cardboard climbing mechanism includes a climbing frame, a guide rail assembly mounted on the climbing frame, and an adjustment mechanism for driving the guide rail assembly to move. The guide rail assembly includes a guide rail, a push block that moves along the guide rail, and a third chain that drives the push block. A third servo motor drives the third chain through a third sprocket set. The output end of the bottle-driving mechanism intersects with the output end of the cardboard climbing mechanism, and a folding conveyor mechanism, a lower pressure box forming mechanism, and an upper pressure box forming mechanism are sequentially arranged behind the intersection point. The mounting beam is made of aluminum alloy profile, and each of the four sides of the aluminum alloy profile has a mounting groove. Different bottle guide components are installed on the four sides of the aluminum alloy profile. By rotating the mounting beam, different bottle guide components can be switched. Different bottle guide components are suitable for guiding bottles of different shapes.

2. A compact paper wrapping machine according to claim 1, characterized in that: The input end of the bottle-separating mechanism is equipped with a cylinder bottle-pressing mechanism, which includes a crossbeam plate spanning above the bottle group conveying channel, a bottle-pressing cylinder mounted on the crossbeam plate, a pressure plate connected to the bottle-pressing cylinder, and a lifting assembly for driving the crossbeam plate to rise and fall.

3. A compact paper wrapping machine according to claim 1, characterized in that: The first swing arm of the paper-taking mechanism is pivotally connected to a tensioning wheel for pressing the timing belt.

4. A compact paper wrapping machine according to claim 1, characterized in that: The first swing arm of the paper-taking mechanism includes two opposing first side plates connected by a first connector, and the two first side plates are located on the outside of the support base; the support base includes two opposing second side plates connected by a second connector, and the first pulley is located between the two second side plates.

5. A compact paper wrapping machine according to claim 1, characterized in that: The adjusting mechanism of the cardboard climbing mechanism includes a lead screw and a slider assembly that cooperates with the lead screw. The lead screw is located inside a connecting tube. The slider assembly includes a metal body that is sleeved outside the connecting tube, plastic sleeves located at both ends of the metal body, and a nut located inside the metal body. The plastic sleeves are slidably engaged with the connecting tube, and the nut is threadedly connected to the lead screw.

6. A compact paper wrapping machine according to claim 5, characterized in that: The lead screw includes a first threaded section and a second threaded section. The first threaded section mates with a first slider assembly, and the second threaded section mates with a second slider assembly. The thread directions of the first threaded section and the second threaded section are the same or opposite.

7. A compact paper wrapping machine according to claim 5, characterized in that: The metal body has a through groove extending through both ends. The through groove includes a receiving groove in the middle and a limiting groove on one side of the metal body. The limiting groove is connected to the receiving groove. The nut is located in the receiving groove and a limiting block is provided on the nut. The limiting block is located in the limiting groove.

8. A compact paper wrapping machine according to claim 5, characterized in that: The connecting pipe is provided with mounting components at both ends. The mounting components include a mounting plate, a bearing disposed in the mounting plate, and a pipe opening fixing seat fixed on one side of the mounting plate. One end of the pipe opening fixing seat is inserted into the connecting pipe, and the end of the lead screw passes through the pipe opening fixing seat and the bearing in sequence.

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