Paper box opening device for cartoning machine

Abstract

The present invention discloses a carton opening device for a cartoning machine, which includes a main drive servo assembly, a main drive disk, a self-rotating disk, a self-rotating disk drive assembly, a pre-opening box servo assembly, a box opening assembly, a box sucking assembly, and a vacuum assembly. The main drive servo assembly is in transmission connection with the main drive disk. There are three groups of the self-rotating disk drive assemblies and three self-rotating disks arranged in a circumferential distribution on the main drive disk. Each group of the self-rotating disk drive assemblies controls the rotation of one self-rotating disk. The rotation direction of the main drive disk is opposite to that of the self-rotating disk. The box opening assembly and the box sucking assembly are respectively arranged on each self-rotating disk. Each box opening assembly is independently controlled by a group of the pre-opening box servo assemblies. Each group of the box sucking assemblies is respectively connected with a group of vacuum assemblies. The present invention can improve work efficiency, is convenient to control, and operates stably and reliably.

Description

Technical Field

[0001] The present invention relates to the technical field of cartoning machine equipment, in particular to a paper box opening device used in a cartoning machine. Background Art

[0002] In order to facilitate transportation and sales and increase the appearance of products, some products need to be packaged in cartons. During the production process, the finished carton products in a flattened state are sent to the product packaging machine, such as the cartoning machine. To complete the automatic product loading action, the flattened carton needs to be opened first so that the product delivery equipment can feed the product and the instruction manual into the carton. In order to open the flattened carton, an opening mechanism needs to be set on the cartoning machine. The existing opening mechanism can open the flattened carton, but it has the problems of low working efficiency, unstable operation, and inconvenient adjustment. Summary of the invention

[0003] The object of the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a carton opening device for a cartoning machine which can improve working efficiency, is easy to control, has a compact structure, and operates stably and reliably.

[0004] The present invention is achieved through the following technical scheme: a paper box opening device for a cartoning machine, comprising a main transmission servo component, a main transmission disk, a self-rotating disk, a self-rotating disk driving component, a pre-box opening servo component, a box opening component, a box suction component, and a vacuum component. The main transmission servo component is connected to the main transmission disk in a transmission manner. Three groups of self-rotating disk driving components and three self-rotating disks distributed in a circle are arranged on the main transmission disk. Each group of self-rotating disk driving components controls the rotation of one self-rotating disk. The direction of rotation of the main transmission disk is opposite to that of the self-rotating disk. The box opening component and the box suction component are respectively arranged on each of the self-rotating disks. Each of the box opening components is independently controlled by a group of pre-box opening servo components. Each group of box suction components is respectively connected to a group of vacuum components.

[0005] Furthermore: the main transmission disc includes a first main transmission disc and a second main transmission disc, the first main transmission disc and the second main transmission disc are connected by a connecting rod, the outer wall of the first main transmission disc is provided with teeth, the main transmission servo assembly includes a main transmission servo motor and a main transmission wheel, the main transmission wheel is connected to the output end of the main transmission servo motor, and the main transmission wheel and the first main transmission disc are connected by a main transmission belt.

[0006] Furthermore: Each set of the self-rotating disk drive components includes a self-rotating disk drive wheel, a rotating shaft, and a first shaft sleeve. The tooth ratio of the self-rotating disk drive wheel to the first shaft sleeve is 1:3. One end of the rotating shaft penetrates through the first main transmission disk and is connected to the first main transmission disk through a bearing. The self-rotating disk drive wheel is fixedly sleeved on the end of the rotating shaft connected to the first main transmission disk. The self-rotating disk drive wheel and the first shaft sleeve are connected through a self-rotating disk transmission belt. The other end of the rotating shaft is connected to the self-rotating disk, and the self-rotating disk is arranged on the second main transmission disk.

[0007] Furthermore: The pre-opening box servo components include a main shaft, a second shaft sleeve, a third shaft sleeve, a fourth shaft sleeve A, a fourth shaft sleeve B, a fourth shaft sleeve C, a first pre-opening box servo motor, a second pre-opening box servo motor, and a third pre-opening box servo motor. The second shaft sleeve is rotatably sleeved on the main shaft. The third shaft sleeve is rotatably sleeved on the second shaft sleeve. The first shaft sleeve is rotatably sleeved on the third shaft sleeve. The fourth shaft sleeve A, the fourth shaft sleeve B, and the fourth shaft sleeve C are respectively rotatably sleeved on the rotating shafts of the three sets of the self-rotating disk drive components. Both ends of the main shaft are respectively connected to the first pre-opening box servo motor and the fourth shaft sleeve A in a transmission manner. Both ends of the second shaft sleeve are respectively connected to the second pre-opening box servo motor and the fourth shaft sleeve B in a transmission manner. Both ends of the third shaft sleeve are respectively connected to the third pre-opening box servo motor and the fourth shaft sleeve C in a transmission manner.

[0008] Furthermore: First belt wheels are respectively sleeved on both ends of the main shaft. Second belt wheels are respectively sleeved on both ends of the second shaft sleeve. Third belt wheels are respectively sleeved on both ends of the third shaft sleeve. The output end of the first pre-opening box servo motor is connected with a first servo motor belt wheel. The output end of the second pre-opening box servo motor is connected with a second servo motor belt wheel. The output end of the third pre-opening box servo motor is connected with a third servo motor belt wheel. The first servo motor belt wheel and the first belt wheel at one end of the main shaft are connected through a first pre-opening box transmission belt. The first belt wheel at the other end of the main shaft is connected to the fourth shaft sleeve A through a second pre-opening box transmission belt. The second servo motor belt wheel and the second belt wheel at one end of the second shaft sleeve are connected through a third pre-opening box transmission belt. The second belt wheel at the other end of the second shaft sleeve is connected to the fourth shaft sleeve B through a fourth pre-opening box transmission belt. The third servo motor belt wheel and the third belt wheel at one end of the third shaft sleeve are connected through a fifth pre-opening box transmission belt. The third belt wheel at the other end of the third shaft sleeve is connected to the fourth shaft sleeve C through a sixth pre-opening box transmission belt.

[0009] Furthermore: The three sets of box-opening components respectively include box-opening pulleys, connecting rotating rods, and box-opening pushing blocks. The connecting rotating rods are movably arranged on the self-rotating disks. The box-opening pulleys are fixedly sleeved on the connecting rotating rods. The box-opening pushing blocks are connected to the connecting rotating rods. The box-opening pulleys of the three sets of box-opening components are respectively connected to the fourth sleeve A, the fourth sleeve B, and the fourth sleeve C through box-opening transmission belts.

[0010] Furthermore: The box-suction component includes a support rod and a suction cup. The support rod is arranged on the self-rotating disk. The suction cup is arranged on the support rod. Air paths that communicate with each other are respectively arranged inside the support rod, inside the rotating shaft, and inside the first sleeve. The air paths are respectively communicated with the suction cup and the vacuum component.

[0011] Furthermore: The second sleeve is sleeved on the main shaft through a first bearing. The third sleeve is sleeved on the second sleeve through a second bearing. The first sleeve is sleeved on the third sleeve through a third bearing.

[0012] Furthermore: It further includes a mounting seat and a lifting seat. The lifting seat is arranged on the mounting seat through a slide rail and a slider. A height-adjusting servo motor is arranged on the mounting seat. The output shaft of the height-adjusting servo motor is connected to a telescopic rod. The telescopic rod is connected to the lifting seat. The main transmission servo component, the main transmission disk, and the pre-box-opening servo component are arranged on the lifting seat.

[0013] Furthermore: Three support rotating shafts distributed in a circular pattern are arranged on the first main transmission disk. The first main transmission disk is connected to the lifting seat through the three support rotating shafts.

[0014] Advantages of the present invention

[0015] 1. Compared with the prior art, the main transmission servo component is used to drive the main transmission disk to rotate. The three sets of self-rotating disk driving components and the three self-rotating disks arranged in a circular pattern on the main transmission disk rotate with the main transmission disk. And each set of self-rotating disk driving components independently controls the rotation of one self-rotating disk, so that the rotation direction of the self-rotating disk is opposite to that of the main transmission disk. The box-suction components arranged on the self-rotating disks rotate with the self-rotating disks. The structure is compact. Each box-opening component is independently controlled by a set of pre-box-opening servo components. By controlling the rotation of the box-opening components, the flattened paper boxes sucked on the box-suction components are opened and then taken away by the next process. The three self-rotating disks and the box-opening components and box-suction components arranged on the self-rotating disks move in such a reciprocating cycle, improving work efficiency. Each box-opening component is independently controlled by a set of pre-box-opening servo components. The adjustability of the servo motor is convenient for control, and the stability and reliability of the equipment operation can be improved.

[0016] 2. By setting a height-adjusting servo motor on the mounting base, connecting the output end of the height-adjusting servo motor to a telescopic rod, connecting the telescopic rod to the lifting base, and connecting the lifting base to the mounting base through a slide rail and a slider, the main drive servo assembly, the main drive disk, and the pre-opening box servo assembly are arranged on the lifting base. The height of the lifting base is controlled by the height-adjusting servo motor and the telescopic rod, so as to realize the height adjustment of the main drive servo assembly, the main drive disk, the pre-opening box servo assembly, and the turntable, the turntable drive assembly, the box-opening assembly 4, and the box-sucking assembly arranged on the main drive disk, making it suitable for different production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention Figure 1 ;

[0018] Figure 2 is a schematic structural diagram of the present invention Figure 2 ;

[0019] Figure 3 is a schematic structural diagram of the present invention (removing the mounting base and the lifting base);

[0020] Figure 4 is a side view of the present invention Figure 1 ;

[0021] Figure 5 is a side view of the present invention Figure 2 ;

[0022] Figure 6 is Figure 5 a sectional view taken along line A-A;

[0023] Figure 7 is a sectional view of the pre-opening box servo assembly.

[0024] Description of the reference numerals: 1 - main drive servo motor, 11 - main drive wheel, 12 - main drive belt, 21 - first main drive disc, 22 - second main drive disc, 23 - connecting rod, 24 - teeth, 25 - support rotating shaft, 3 - self-rotating disc, 31 - self-rotating disc drive wheel, 32 - rotating shaft, 33 - first shaft sleeve, 34 - self-rotating disc drive belt, 4 - box-opening assembly, 41 - box-opening pulley, 42 - connecting rotating rod, 43 - box-opening push block, 44 - box-opening drive belt, 5 - box-sucking assembly, 51 - support rod, 52 - suction cup, 6 - vacuum assembly, 61 - air passage, 7 - main shaft, 701 - first pulley, 71 - second shaft sleeve, 711 - second pulley, 72 - third shaft sleeve, 721 - third pulley, 73 - fourth shaft sleeve A, 74 - fourth shaft sleeve B, 75 - fourth shaft sleeve C, 76 - first pre-box-opening servo motor, 761 - first servo motor pulley, 77 - second pre-box-opening servo motor, 771 - second servo motor pulley, 78 - third pre-box-opening servo motor, 81 - first pre-box-opening drive belt, 82 - second pre-box-opening drive belt, 83 - third pre-box-opening drive belt, 84 - fourth pre-box-opening drive belt, 85 - fifth pre-box-opening drive belt, 86 - sixth pre-box-opening drive belt, 87 - first bearing, 88 - second bearing, 89 - third bearing, 91 - mounting seat, 92 - lifting seat, 93 - slide rail, 94 - slider, 95 - height-adjusting servo motor, 96 - telescopic rod, 10 - paper box. Detailed implementation manners

[0025] Figures 1-4 The structural schematic diagram of the embodiment of the paper box opening device for a box loading machine provided by the present invention includes a main drive servo assembly, a main drive disc, a self-rotating disc 3, a self-rotating disc drive assembly, a pre-box-opening servo assembly, a box-opening assembly, a box-sucking assembly, and a vacuum assembly. The main drive servo assembly is in transmission connection with the main drive disc. There are three sets of self-rotating disc drive assemblies and three self-rotating discs 3 arranged in a circumferential distribution on the main drive disc. Each set of self-rotating disc drive assemblies controls the rotation of one self-rotating disc 3. The rotation direction of the main drive disc is opposite to that of the self-rotating disc 3. An opening assembly 4 and a box-sucking assembly 5 are respectively arranged on each self-rotating disc 3. Each box-opening assembly 4 is independently controlled by a set of pre-box-opening servo assemblies. Each set of box-sucking assemblies 5 is respectively connected to a set of vacuum assemblies 6.

[0026] The main drive disc is driven to rotate by the main drive servo assembly. The three sets of self-rotating disc drive assemblies and the three self-rotating discs 3 arranged in a circumferential distribution on the main drive disc rotate with the main drive disc. Each set of self-rotating disc drive assemblies independently controls the rotation of one self-rotating disc 3, so that the rotation direction of the self-rotating disc 3 is opposite to that of the main drive disc. The box-sucking assembly and the box-opening assembly 4 arranged on the self-rotating disc 3 rotate with the self-rotating disc 3. Each box-opening assembly 4 is independently controlled by a set of pre-box-opening servo assemblies. By controlling the rotation of the box-opening assembly 4, the paper box in a flattened state sucked on the box-sucking assembly is opened.

[0027] The main drive disk includes a first main drive disk 21 and a second main drive disk 22. The first main drive disk 21 and the second main drive disk 22 are connected by a connecting rod 23. Tooth teeth 24 are provided on the outer wall of the first main drive disk 21. The main drive servo assembly includes a main drive servo motor 1 and a main drive wheel 11. The main drive wheel 11 is connected to the output end of the main drive servo motor 1. The main drive wheel 11 and the first main drive disk 21 are connected by a main drive belt 12.

[0028] The main drive servo motor 1 drives the main drive wheel 11 to rotate. The main drive wheel 11 drives the first main drive disk 21 and the second main drive disk 22 to rotate through the main drive belt 12. The self-rotating disk drive assembly on the first main drive disk 21 rotates with the first main drive disk 21.

[0029] Each set of self-rotating disk drive assemblies includes a self-rotating disk drive wheel 31, a rotating shaft 32, and a first shaft sleeve 33. The tooth number ratio of the self-rotating disk drive wheel 31 to the first shaft sleeve 33 is 1:3. One end of the rotating shaft 32 penetrates through the first main drive disk 21 and is connected to the first main drive disk 21 through a bearing. The self-rotating disk drive wheel 31 is fixedly sleeved on one end of the rotating shaft 32 connected to the first main drive disk 21. The self-rotating disk drive wheel 31 and the first shaft sleeve 33 are connected by a self-rotating disk drive belt 34. The other end of the rotating shaft 32 is connected to the self-rotating disk 3. The self-rotating disk 3 is arranged on the second main drive disk 22.

[0030] One end of the rotating shaft 32 is connected to the self-rotating disk 3 through a bearing. The self-rotating disk drive wheel 31 is fixedly sleeved on the rotating shaft 32. When the first main drive disk 21 rotates, the rotating shaft 32 is driven to rotate through the cooperation of the self-rotating disk drive wheel 31, the first bearing 33, and the self-rotating disk drive belt 34. And the rotation direction of the rotating shaft 32 is opposite to that of the first main drive disk 21. The rotating shaft 32 drives the self-rotating disk 3 to rotate. Since the tooth number ratio of the self-rotating disk drive wheel 31 to the first shaft sleeve 33 is 1:3, when the first shaft sleeve 33 rotates one circle, the self-rotating disk drive wheel 31 is driven to rotate three circles. The self-rotating disk drive wheel 31 drives the rotating shaft 32 to rotate three circles. Thus, in addition to the self-rotating disk 3 rotating synchronously with the second main drive disk 22 for one circle, the self-rotating disk 3 rotates three circles, and the rotation direction of the first main drive disk 21 is opposite to that of the self-rotating disk 3. Since the suction box assembly 5 is fixedly arranged on the self-rotating disk 3, therefore, in addition to the suction box assembly 5 rotating synchronously with the second main drive disk 22 for one circle, the suction box assembly 5 rotates in the opposite direction three circles.

[0031] Refer to Figure 6 and Figure 7The pre-box opening servo assembly includes a main shaft 7, a second shaft sleeve 71, a third shaft sleeve 72, a fourth shaft sleeve A73, a fourth shaft sleeve B74, a fourth shaft sleeve C75, a first pre-box opening servo motor 76, a second pre-box opening servo motor 77, and a third pre-box opening servo motor 78. The second shaft sleeve 71 is rotatably mounted on the main shaft 7, the third shaft sleeve 72 is rotatably mounted on the second shaft sleeve 71, the first shaft sleeve 33 is rotatably mounted on the third shaft sleeve 72, the fourth shaft sleeve A73, the fourth shaft sleeve B74, and the fourth shaft sleeve C75 are respectively rotatably mounted on the rotating shaft 32 of the three sets of self-rotating disk drive assemblies, and the two ends of the main shaft 7 are respectively connected to the first pre-box opening servo motor 76 and the fourth shaft sleeve A73. The two ends of the second shaft sleeve 71 are respectively connected to the second pre-box opening servo motor 77 and the fourth shaft sleeve B74. The two ends of the third shaft sleeve 72 are respectively connected to the third pre-box opening servo motor 78 and the fourth shaft sleeve C75. 75 transmission connection.

[0032] The two ends of the main shaft 7 are respectively covered with a first pulley 701, the two ends of the second sleeve 71 are respectively covered with a second pulley 711, the two ends of the third sleeve 72 are respectively covered with a third pulley 721, the output end of the first pre-box opening servo motor 76 is connected to the first servo motor pulley 761, the output end of the second pre-box opening servo motor 77 is connected to the second servo motor pulley 771, the output end of the third pre-box opening servo motor 78 is connected to the third servo motor pulley 781, the first servo motor pulley 761 is connected to the first pulley 701 at one end of the main shaft 7 through the first pre-box opening transmission belt 81, the first pulley 701 at the other end of the main shaft 7 is connected to the fourth sleeve A 73 through the second pre-box opening transmission belt 82, the second servo motor pulley 771 is connected to the second pulley 711 at one end of the second sleeve 71 through the third pre-box opening transmission belt 83, the second pulley 711 at the other end of the second sleeve 71 is connected to the fourth sleeve B through the fourth pre-box opening transmission belt 84 74 is connected, the third servo motor pulley 781 is connected to the third pulley 721 at one end of the third sleeve 72 through the fifth pre-opening box transmission belt 85, and the third pulley 721 at the other end of the third sleeve 72 is connected to the fourth sleeve C 75 through the sixth pre-opening box transmission belt 86.

[0033] The second sleeve 71 is mounted on the main shaft 7 through the first bearing sleeve 87 , the third sleeve 72 is mounted on the second sleeve 71 through the second bearing 88 , and the first sleeve 33 is mounted on the third sleeve 72 through the third bearing 89 .

[0034] The second sleeve 71 is sleeved on the main shaft 7, the third sleeve 72 is sleeved on the second sleeve 71, and the first sleeve 33 is sleeved on the third sleeve 72, so that the structure is compact.

[0035] During operation, the first pre-opening box servo motor 76 drives the first servo motor pulley 761 to rotate. The first servo motor pulley 761 drives the first pulley 701 and the main shaft 7 to rotate through the first pre-opening box transmission belt 81. The first pulley 701 drives the fourth bushing A 73 to rotate through the second pre-opening box transmission belt 82. The fourth bushing A 73 is in transmission connection with one of the three groups of box-opening assemblies 4. The second pre-opening box servo motor 77 drives the second servo motor pulley 771 to rotate. The second servo motor pulley 711 drives the second pulley 711 and the second bushing 71 to rotate through the third pre-opening box transmission belt 83. The second pulley 711 drives the fourth bushing B 74 to rotate through the fourth pre-opening box transmission belt 84. The fourth bushing B 74 is in transmission connection with another group of the three groups of box-opening assemblies 4. The third pre-opening box servo motor 78 drives the third servo motor pulley to rotate. The third servo motor pulley drives the third pulley 721 and the third bushing 72 to rotate through the fifth pre-opening box transmission belt 85. The third pulley 72 drives the fourth bushing C 75 to rotate through the sixth pre-opening box transmission belt 86. The fourth bushing C 75 is in transmission connection with the last group of the three groups of box-opening assemblies 4.

[0036] The three groups of box-opening assemblies 4 respectively include box-opening pulleys 41, connecting rotating rods 42, and box-opening push blocks 43. The connecting rotating rods 42 are movably arranged on the turntable 3. The box-opening pulleys 41 are fixedly sleeved on the connecting rotating rods 42. The box-opening push blocks 43 are connected to the connecting rotating rods 42. The box-opening pulleys 41 of the three groups of box-opening assemblies 4 are respectively connected to the fourth bushing A 73, the fourth bushing B 74, and the fourth bushing C 75 through box-opening transmission belts 44.

[0037] The box-sucking assembly 5 includes a support rod 51 and a suction cup 52. The support rod 51 is arranged on the turntable 3. The suction cup 52 is arranged on the support rod 51. Air paths 61 that communicate with each other are respectively arranged inside the support rod 51, inside the rotating shaft 32, and inside the first bushing 33. The air paths 61 are respectively connected to the suction cup 52 and the vacuum assembly 6.

[0038] Refer to Figure 5 As shown in the figure, when opening the box, the second main transmission disc 22 rotates, and the turntable 3 rotates. When the box-sucking assembly 5 arranged on the turntable 3 rotates synchronously with the second main transmission disc 22 for one circle, during the process that the box-sucking assembly 5 rotates counterclockwise for three circles, the suction cup 52 sucks the flattened paper box 10. The pre-opening box servo assembly drives the box-opening push block 42 to rotate, so that the box-opening push block 42 rotates 90° in the direction close to the paper box 10. The box-opening push block 42 presses the crease of the paper box 10 to open the paper box 10. After the paper box 10 is completely opened, the box-opening push block 42 rotates counterclockwise by 180°. The opened paper box 10 is taken away by the next process. The three turntables 3 and the box-opening assemblies 4 and box-sucking assemblies 5 arranged on the turntable 3 move in such a reciprocating cycle, realizing that the flattened paper box 10 is opened and then taken away by the next process, with high working efficiency.

[0039] The present invention further includes a mounting base 91 and a lifting base 92. The lifting base 92 is arranged on the mounting base 91 through a slide rail 93 and a slider 94. A height adjustment servo motor 95 is arranged on the mounting base 91. The output shaft of the height adjustment servo motor 95 is connected with a telescopic rod 96. The telescopic rod 96 is connected with the lifting base 92. The main drive servo assembly, the main drive disk, and the pre-opening box servo assembly are arranged on the lifting base 91. Three support rotating shafts 25 distributed in a circumferential manner are arranged on the first main drive disk 21. The first main drive disk 21 is connected with the lifting base 92 through the three support rotating shafts 25.

[0040] The slide rail 93 is arranged on the mounting base 91, and the slider 94 is arranged on the lifting base 92. When adjusting the height, the height adjustment servo motor 95 is turned on to drive the telescopic rod 96 to expand and contract. The telescopic rod 96 drives the lifting base 92 to move up and down along the slide rail 93 through the slider 94, so as to realize the height adjustment of the main drive servo assembly, the main drive disk, the pre-opening box servo assembly, and the self-rotating disk 3, the self-rotating disk drive assembly, the box-opening assembly 4, and the box-sucking assembly 5 arranged on the main drive disk, so as to meet different production requirements.

[0041] The above detailed description is a specific description of the feasible embodiments of the present invention. This embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or change without departing from the present invention shall be included in the patent scope of this case.

Claims

1. Carton opening device for cartoning machine, characterized in that: It includes a main drive servo assembly, a main drive disk, a self-rotating disk, a self-rotating disk drive assembly, a pre-opening servo assembly, an opening assembly, a box sucking assembly, and a vacuum assembly. The main drive disk includes a first main drive disk and a second main drive disk. The main drive servo assembly is drivingly connected to the main drive disk. There are three sets of the self-rotating disk drive assemblies distributed in a circumferential manner and three self-rotating disks distributed in a circumferential manner on the main drive disk. Each set of the self-rotating disk drive assemblies controls the rotation of one self-rotating disk. The rotation direction of the main drive disk is opposite to that of the self-rotating disk. Each self-rotating disk is respectively provided with an opening assembly and a box sucking assembly. Each opening assembly is independently controlled by a set of the pre-opening servo assemblies. Each set of the box sucking assemblies is respectively connected with a set of vacuum assemblies; Each set of the self-rotating disk drive assemblies includes a self-rotating disk drive wheel, a rotating shaft, and a first shaft sleeve. The tooth number ratio of the self-rotating disk drive wheel to the first shaft sleeve is 1:

3. One end of the rotating shaft penetrates through the first main drive disk and is connected to the first main drive disk through a bearing. The self-rotating disk drive wheel is fixedly sleeved on the end of the rotating shaft connected to the first main drive disk. The self-rotating disk drive wheel and the first shaft sleeve are connected by a self-rotating disk transmission belt. The other end of the rotating shaft is connected to the self-rotating disk. The self-rotating disk is arranged on the second main drive disk; The pre-opening servo assembly includes a main shaft, a second shaft sleeve, a third shaft sleeve, a fourth shaft sleeve A, a fourth shaft sleeve B, a fourth shaft sleeve C, a first pre-opening servo motor, a second pre-opening servo motor, and a third pre-opening servo motor. The second shaft sleeve is rotatably sleeved on the main shaft. The third shaft sleeve is rotatably sleeved on the second shaft sleeve. The first shaft sleeve is rotatably sleeved on the third shaft sleeve. The fourth shaft sleeve A, the fourth shaft sleeve B, and the fourth shaft sleeve C are respectively rotatably sleeved on the rotating shafts of the three sets of the self-rotating disk drive assemblies. Both ends of the main shaft are respectively drivingly connected to the first pre-opening servo motor and the fourth shaft sleeve A. Both ends of the second shaft sleeve are respectively drivingly connected to the second pre-opening servo motor and the fourth shaft sleeve B. Both ends of the third shaft sleeve are respectively drivingly connected to the third pre-opening servo motor and the fourth shaft sleeve C; The two ends of the main shaft are respectively sleeved with a first belt pulley, the two ends of the second shaft sleeve are respectively sleeved with a second belt pulley, the two ends of the third shaft sleeve are respectively sleeved with a third belt pulley, the output end of the first pre-opening box servo motor is connected with a first servo motor belt pulley, the output end of the second pre-opening box servo motor is connected with a second servo motor belt pulley, the output end of the third pre-opening box servo motor is connected with a third servo motor belt pulley, the first servo motor belt pulley and the first belt pulley at one end of the main shaft are connected by a first pre-opening box transmission belt, the first belt pulley at the other end of the main shaft is connected with the fourth shaft sleeve A through a second pre-opening box transmission belt, the second servo motor belt pulley and the second belt pulley at one end of the second shaft sleeve are connected by a third pre-opening box transmission belt, the second belt pulley at the other end of the second shaft sleeve is connected with the fourth shaft sleeve B through a fourth pre-opening box transmission belt, the third servo motor belt pulley and the third belt pulley at one end of the third shaft sleeve are connected by a fifth pre-opening box transmission belt, and the third belt pulley at the other end of the third shaft sleeve is connected with the fourth shaft sleeve C through a sixth pre-opening box transmission belt; The three groups of the box-opening assemblies respectively include box-opening belt pulleys, connecting rotating rods, and box-opening pushing blocks. The connecting rotating rods are movably arranged on the self-rotating disk. The box-opening belt pulleys are fixedly sleeved on the connecting rotating rods. The box-opening pushing blocks are connected with the connecting rotating rods. The box-opening belt pulleys of the three groups of box-opening assemblies are respectively connected with the fourth shaft sleeve A, the fourth shaft sleeve B, and the fourth shaft sleeve C through box-opening transmission belts.

2. The carton opening device for a cartoning machine according to claim 1, characterized in that: The first main transmission disk and the second main transmission disk are connected by a connecting rod. The outer wall of the first main transmission disk is provided with teeth. The main transmission servo assembly includes a main transmission servo motor and a main transmission wheel. The main transmission wheel is connected with the output end of the main transmission servo motor. The main transmission wheel and the first main transmission disk are connected by a main transmission belt.

3. The carton opening device for a cartoning machine according to claim 2, characterized in that: The box sucking assembly includes a support rod and a suction cup. The support rod is arranged on the self-rotating disk. The suction cup is arranged on the support rod. Air passages which are communicated with each other are respectively arranged in the support rod, the rotating shaft, and the first shaft sleeve. The air passages are respectively communicated with the suction cup and the vacuum assembly.

4. The carton opening device for a cartoning machine according to claim 3, characterized in that: The second shaft sleeve is sleeved on the main shaft through a first bearing. The third shaft sleeve is sleeved on the second shaft sleeve through a second bearing. The first shaft sleeve is sleeved on the third shaft sleeve through a third bearing.

5. The carton opening device for a cartoning machine according to claim 4, characterized in that: It further includes a mounting seat and a lifting seat. The lifting seat is arranged on the mounting seat through a slide rail and a slider. A height adjustment servo motor is arranged on the mounting seat. The output shaft of the height adjustment servo motor is connected with a telescopic rod. The telescopic rod is connected with the lifting seat. The main transmission servo assembly, the main transmission disk, and the pre-opening box servo assembly are arranged on the lifting seat.

6. The carton opening device for the cartoning machine according to claim 5, characterized in that: three support rotating shafts distributed in a circumferential manner are arranged on the first main transmission disk, and the first main transmission disk is connected to the lifting seat through the three support rotating shafts.

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