CN112249431A

CN112249431A - Active high-speed carton opening mechanism suitable for large cartons and control method

Info

Publication number: CN112249431A
Application number: CN202011171251.8A
Authority: CN
Inventors: 黄瑞华; 朱建荣; 李建彬; 吕庆利; 徐林; 张磊
Original assignee: Nantong Universal Machinery Co ltd
Current assignee: Nantong Universal Machinery Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-01-22
Anticipated expiration: 2040-10-28
Also published as: CN112249431B

Abstract

The invention provides an active high-speed carton opening mechanism and a control method suitable for a large carton, wherein the carton opening mechanism comprises a fixing frame, a driving control mechanism and a forming mechanism, wherein the driving control mechanism is installed on a track at the top of the fixing frame through a screw, the forming mechanism is installed on the lower surface of the driving control mechanism and is driven by a speed reducing motor, the speed is high, and only 2 seconds are needed for completing the carton opening from a carton suction angle to a carton opening angle of 90 degrees; utilize the active unpacking of sucking disc, inhale the case and open one step and target in place, can satisfy the automatic demand of unpacking of large-size carton, solved traditional equipment to the unstability of unpacking that large-scale carton exists, the carton is opened not just scheduling problem, reduces the carton spoilage, practices thrift enterprise's production and maintenance cost, is showing simultaneously and promotes unpacking speed, has effectively improved production and packing efficiency.

Description

Active high-speed carton opening mechanism suitable for large cartons and control method

Technical Field

The invention relates to an active high-speed carton opening mechanism suitable for a large carton and a control method, and belongs to the technical field of packaging equipment.

Background

The carton unpacking machine, also known as a forming machine, is a special device for automatically opening carton boards to be folded into paperboards, folding the bottoms of the cartons according to a certain program, sealing the cartons by using an adhesive tape and then conveying the cartons to the carton packing machine for loading goods, can complete the procedures of automatically unpacking cartons, folding lower covers and sealing lower bottoms of large batches of cartons, gradually replaces the traditional manual carton packing mode at present, and is widely applied to product packaging flow lines of various manufacturers.

However, the box opening machines used by most of the current manufacturers passively open boxes only by mechanical parts, so that the speed is slow, the stability is poor, the cartons are easy to overturn, the box opening verticality is difficult to guarantee, the damage rate of the cartons is increased, even the assembly line is stopped when the damage rate is serious, and the packaging and maintenance cost of the enterprises is increased; meanwhile, with the continuous development of the electronic commerce and logistics industry, the size of the carton adopted by the commodity package is gradually increased, the existing case unpacking machine cannot meet the automatic case unpacking requirement of the current mainstream large carton (the length and the width are larger than 1200mm), the probability of failure when the box body is too large is very high, and the work efficiency of the case unpacking machine is reduced.

Disclosure of Invention

The invention aims to solve the problems of the existing box unpacking machine and provides an active high-speed box unpacking mechanism suitable for a large carton and a control method.

The technical solution of the invention is as follows: the utility model provides an active high-speed unpacking mechanism suitable for big carton, characterized by includes mount, drive control mechanism and forming mechanism, and wherein drive control mechanism passes through the screw and installs on the track at the top of mount, and forming mechanism installs in drive control mechanism's lower surface.

Furthermore, the fixing frame comprises a rack, a cam plate and a connecting plate, wherein the rack is integrally in a rectangular frame structure, the cam plate is fixed on the rack through the connecting plate, and the surface of the cam plate is provided with a guide groove; the connecting plate is provided with a waist hole which can finely adjust the position of the cam plate.

Furthermore, the driving control mechanism comprises a speed reduction motor, a guide rail, a motor fixing plate, a position detection plate, an electric eye, a detection screw, a connecting rod, a bearing seat, a connecting plate, a roller groove, a cam bearing and a proximity switch; the speed reducing motor is arranged in the middle of the motor fixing plate, the position detection plate and the electric eye are arranged at the bottom of the speed reducing motor, and the proximity switch is arranged on the motor fixing plate; one end of the connecting rod is connected with a bottom rotating shaft of the speed reducing motor, the other end of the connecting rod is arranged in the roller groove through a cam bearing, and the detection screw is fixed in the center of the upper surface of the connecting rod; 1 pair of bearing seats are fixed at the bottom of the roller groove through a connecting plate, 1 guide rail is arranged on each bearing seat, 2 guide rails are parallel to each other, and the tail ends of the guide rails are fixed at one side of a motor fixing plate; the position detection plate is fixed on the outer side of a rotating shaft at the bottom of the speed reducing motor, is in a ring shape, and is provided with 60 holes at equal intervals at the edge; the electric eye is positioned at the lower end of the edge of the position detection plate and is arranged corresponding to the hole position at the edge of the position detection plate.

Furthermore, the forming mechanism comprises a box pulling assembly, a box folding assembly and a rotating shaft, wherein the tops of the box pulling assembly and the box folding assembly are mutually connected through the rotating shaft and can rotate relatively, and the top of the box folding assembly is connected with the bottom of the cam plate through a screw.

Furthermore, the draw box assembly comprises a guide rail seat, a cross beam seat, a quick locking handle, an adjusting hole, a suction arm, a suction cup and a rotating shaft seat; wherein the crossbeam seat is arranged on the side surface of the guide rail seat, and the rotating shaft seat is arranged on the right side of the crossbeam seat; 1 pair of parallel suction arms are symmetrically arranged at the bottom of the guide rail seat, the upper part of each suction arm is provided with a quick lock handle, the lower part of each suction arm is provided with 2 groups of adjusting holes, and the adjusting holes are provided with 1 pair of suckers; the top of the suction arm is fixed inside the guide rail seat through a pulley assembly, a suction arm locking head is arranged inside the pulley assembly, and the pulley assembly is connected with a quick locking handle through a handle connecting rod; the pulley assembly comprises a sliding block, rollers and suction arm connecting holes, wherein 4 rollers are arranged at four corners of the sliding block, and the suction arm connecting holes are arranged in the middle of the sliding block and used for installing suction arm locking heads.

Furthermore, the folding box assembly comprises a guide rail seat, a cross beam seat, a quick locking handle, an adjusting hole, a suction arm, a sucker, a rotating shaft seat, a cam bearing and a waist hole; the transverse beam seat is arranged on the side surface of the guide rail seat, and the rotating shaft seat is arranged on the left side of the transverse beam seat and is mutually connected with the rotating shaft seat of the drawing box assembly through a rotating shaft; the right side of the upper surface of the guide rail seat is provided with 3 groups of kidney holes, and the cam bearing is arranged on the upper surface of the guide rail seat and matched with the guide groove on the cam plate; the 1 pair of suction arms which are parallel to each other are symmetrically arranged at the bottom of the guide rail seat, the upper part of each suction arm is provided with a quick lock handle, the lower part of each suction arm is provided with 2 groups of adjusting holes, and the adjusting holes are provided with 1 pair of suckers.

The control method of the active high-speed carton opening mechanism suitable for the large carton specifically comprises the following steps:

1) firstly, automatically or manually placing the carton on a conveying line, and adjusting the distance between a draw box assembly and a carton folding assembly suction arm in a forming mechanism and the mounting position of a suction cup according to the carton specification to ensure the stability of the suction box;

2) in an initial state, the box pulling assembly and the box folding assembly are in a 90-degree vertical state, a speed reducing motor in the driving control mechanism rotates in a single-direction continuous mode to drive the connecting rod to rotate, so that a cam bearing fixed at the tail end of the connecting rod drives the cam groove to do linear reciprocating motion along the guide rail, the cam groove is connected with the bearing seat, and the box pulling assembly is fixed on the bearing seat, so that the circular motion of the motor is converted into the linear reciprocating motion of the box pulling assembly;

3) one end of the box folding component is connected with the box pulling component through a rotating shaft, the box pulling component and the box folding component can rotate relatively, a cam bearing fixed at the other end moves along a curve groove on a cam plate, and when the box pulling component and the box folding component are in a 180-degree state, a box starts to be sucked; at the moment, two groups of suckers on the box pulling assembly suck the length surface of the carton, and two groups of suckers on the box folding assembly suck the width surface of the carton;

4) after the carton is completely and stably absorbed, the carton pulling assembly and the carton folding assembly gradually form 90 degrees under the driving of the speed reducing motor and the cam curve groove respectively, when the proximity switch senses the detection screw, the speed reducing motor stops, the carton pulling assembly and the carton folding assembly are in a 90-degree state, the carton is opened, and the continuous motion of the carton absorption and the carton opening is realized through sequential circulation after the carton is opened.

The invention has the advantages that:

1) the automatic carton opening requirement of large cartons is met, the problems of unstable carton opening, incorrect carton opening and the like of large cartons of the traditional equipment are solved, the carton damage rate is reduced, and the production and maintenance cost of enterprises is saved;

2) the box opening speed is obviously improved, and compared with the traditional vertical box opening machine with the box opening speed of 6-10 boxes per minute, the actual box opening speed can reach 16-20 boxes per minute, so that the production and packaging efficiency is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of an active high-speed carton opening mechanism applicable to large cartons.

Fig. 2 is a schematic structural view of the fixing frame.

Fig. 3 is a schematic structural view of the drive control mechanism.

Fig. 4 is a schematic view of the structure of the position detecting plate and the electric eye.

FIG. 5 is a graph of the speed of the motor and the phase of the detection plate.

Fig. 6 is a schematic structural view of the molding mechanism.

Fig. 7 is a schematic structural view of the draw box assembly.

Fig. 8 is a schematic structural view of a quick lock handle adjustment mechanism.

Fig. 9 is a schematic view of the construction of the bellows assembly.

Fig. 10 is a schematic working flow diagram of the active high-speed carton opening mechanism for large cartons according to the present invention.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate the orientation or positional relationship based on the content of the drawings in the specification, which is only for convenience of describing the structural relationship of the present invention, and does not limit or imply that the device or element to be referred to must be disposed only in a specific orientation or be configured in a specific configuration, so the present invention is not limited thereto.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, for example: can be fixedly connected or detachably connected; can be directly connected or indirectly connected through an intermediate medium; either internally or in interactive relation. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Fig. 1 shows an active high-speed carton opening mechanism suitable for large cartons, which structurally comprises a fixed frame 1, a driving control mechanism 2 and a forming mechanism 3, wherein the driving control mechanism 2 is mounted on a track at the top of the fixed frame 1 through screws, and the forming mechanism 3 is mounted on the lower surface of the driving control mechanism 2.

As shown in fig. 2, the fixing frame 1 comprises a frame 1-1, a cam plate 1-2 and a connecting plate 1-3, wherein the frame 1-1 is integrally rectangular frame structure, the cam plate 1-2 is fixed on the frame 1-1 through the connecting plate 1-3, and the surface of the cam plate 1-2 is provided with a guide groove; the connecting plate 1-3 is provided with a waist hole which can finely adjust the position of the cam plate 1-2.

As shown in fig. 3, the driving control mechanism 2 comprises a speed reduction motor 2-1, a guide rail 2-2, a motor fixing plate 2-3, a position detection plate 2-4, an electric eye 2-5, a detection screw 2-6, a connecting rod 2-7, a bearing seat 2-8, a connecting plate 2-9, a roller groove 2-10, a cam bearing 2-11 and a proximity switch 2-12; wherein the speed reducing motor 2-1 is arranged in the middle of the motor fixing plate 2-3, the position detection plate 2-4 and the electric eye 2-5 are arranged at the bottom of the speed reducing motor 2-1, and the proximity switch 2-12 is arranged on the motor fixing plate 2-3; one end of a connecting rod 2-7 is connected with a bottom rotating shaft of a speed reducing motor 2-1, the other end of the connecting rod is arranged in a roller groove 2-10 through a cam bearing 2-11, and a detection screw 2-6 is fixed in the center of the upper surface of the connecting rod 2-7; the pair of bearing blocks 2-8 is fixed at the bottom of the roller groove 2-10 through a connecting plate 2-9, 1 guide rail 2-2 is arranged on each bearing block 2-8, 2 guide rails 2-2 are parallel to each other, and the tail end of each guide rail is fixed at one side of the motor fixing plate 2-3.

In actual work, the speed reducing motor 2-1 drives the connecting rod 2-7 to rotate in a unidirectional and continuous mode, the cam bearings 2-11 at the tail ends of the connecting rods 2-7 move in the guide grooves of the roller grooves 2-10, and the pair of bearing blocks 2-8 fixed on the roller grooves 2-10 through the connecting plates 2-9 respectively do linear reciprocating motion along the guide rails 2-2, so that the box pulling assembly 3-1 fixed on the bearing blocks 2-8 does linear reciprocating motion. When the proximity switch 2-12 fixed on the motor fixing plate 2-3 senses the detection screw 2-6 fixed on the connecting rod 2-7, the speed reducing motor 2-1 stops, the box opening is completed, the next hinge stage is entered, and the operation is circulated.

As shown in fig. 4, the position detecting plate 2-4 is fixed outside the rotating shaft at the bottom of the speed reducing motor 2-1, is circular in shape, and has 60 holes at the edge thereof at equal intervals; the electric eye 2-5 is positioned at the lower end of the edge of the position detection plate 2-4 and is arranged corresponding to the hole position of the edge. When the device works actually, the position detection plate 2-4 and the electric eye 2-5 form an encoder, when the proximity switch 2-12 senses the detection screw 2-6, the lamp is lightened, and the position is used as the zero position of the encoder; the detection plate 60 is equally divided by 60 holes at the edge of the position detection plate 2-4, the electric eye 2-5 confirms the position of the box opening mechanism by reading the number of the through holes, the speed is accurately regulated by changing the running speed of the speed reducing motor 2-1 at different stages when the position detection plate 2-4 rotates for one week, and the relation between the running speed of the speed reducing motor and the detection plate stage is shown in figure 5: the position detection plate 2-4 rotates for a circle and is divided into 4 stages, the suction box stage is arranged in the interval of 1-25, and the motor is set to run at 100% of full speed in the stage; in order to stably absorb the cartons in the 25-32 interval, the speed of the motor is adjusted to 20 percent for speed reduction operation; the interval of 32-55 is a carton opening stage, and the carton opening speed can be flexibly adjusted by setting the speed of a speed reducing motor according to the size of the carton or the requirements of customers; the interval of 55-60 is to ensure the motor to stop stably after the box is opened and prevent overshoot, so the speed of the motor is adjusted to 20 percent for deceleration operation. The control program of the speed reducing motor 2-1 is designed according to the rule, the effect of stable speed increase can be achieved, the speed reducing motor 2-1 in the mechanism always runs continuously in a single direction instead of alternately running in the forward direction and the reverse direction, and the box opening speed can be greatly improved.

As shown in FIG. 6, the forming mechanism 3 comprises a drawing box assembly 3-1, a folding box assembly 3-2 and a rotating shaft 3-3, wherein the tops of the drawing box assembly 3-1 and the folding box assembly 3-2 are connected with each other through the rotating shaft 3-3 and can rotate relatively, and the top of the folding box assembly 3-2 is connected with the bottom of the cam plate 1-2 through a screw. With the unidirectional continuous rotation of the speed reducing motor 2-1, the box pulling assembly 3-1 makes reciprocating linear motion along the guide rail 2-2, and the cam on the box folding assembly 3-2 moves along the curved track on the cam plate 1-2, so that the two assemblies form 180-degree box suction and 90-degree box opening.

As shown in fig. 7, the draw box assembly 3-1 comprises a guide rail seat 3-4, a crossbeam seat 3-5, a quick lock handle 3-6, an adjusting hole 3-7, a suction arm 3-8, a suction cup 3-9 and a rotating shaft seat 3-10; wherein, the crossbeam seat 3-5 is arranged on the side surface of the guide rail seat 3-4, and the rotating shaft seat 3-10 is arranged on the right side of the crossbeam seat 3-5; 1 pair of parallel suction arms 3-8 are symmetrically arranged at the bottom of the guide rail seat 3-4, the upper parts of the suction arms 3-8 are provided with fast locking handles 3-6, the lower parts are provided with 2 groups of adjusting holes 3-7, and 1 pair of suckers 3-9 are arranged on the adjusting holes 3-7. In the processes of box suction and box opening, the box pulling assembly 3-1 always makes reciprocating linear motion along the guide rail 2-2, the two groups of suckers 3-9 are adsorbed on the length surfaces of the paper boxes, and the space between the two groups of suction arms 3-8 is adjusted through the quick locking handle 3-6, so that the suckers 3-9 can suck different length surfaces of the paper boxes; meanwhile, the adjusting holes 3-7 on the suction arms 3-8 can adjust the upper and lower positions of the suction cups 3-9 to ensure that the suction cups 3-9 are adsorbed at the optimal position of the carton.

As shown in fig. 8, the top of the suction arm 3-8 is fixed inside the guide rail seat 3-4 through a pulley assembly 3-11, a suction arm locking head 3-12 is installed inside the pulley assembly 3-11, and is connected with a quick locking handle 3-6 through a handle connecting rod 3-13; the pulley component 3-11 comprises a sliding block 3-11-1, rollers 3-11-2 and suction arm connecting holes 3-11-3, wherein 4 rollers 3-11-2 are arranged at four corners of the sliding block 3-11-1, and the suction arm connecting holes 3-11-3 are arranged in the middle of the sliding block 3-11-1 and used for installing suction arm locking heads 3-12. The quick locking handle 3-6 mainly utilizes the dead point of the connecting rod and the static friction force between parts to realize the quick locking function: when the quick locking handle 3-6 is opened, the suction arm locking head 3-12 leaves the guide rail seat 3-4, the pulley block 3-11 moves back and forth along the guide rail groove in the cross beam seat 3-5, when the size of the carton is adjusted to be suitable, the quick locking handle 3-6 is closed, the suction arm locking head 3-12 is tightly attached to the guide rail seat 3-4 to generate static friction, and the handle connecting rod 3-13 reaches the dead point position and is stressed the most, so that the locking function of the suction arm 3-8 is realized.

As shown in fig. 9, the bellows assembly 3-2 comprises a guide rail seat 3-4, a crossbeam seat 3-5, a quick lock handle 3-6, an adjusting hole 3-7, a suction arm 3-8, a suction cup 3-9, a rotating shaft seat 3-10, a cam bearing 3-14 and a kidney hole 3-15; wherein, the crossbeam seat 3-5 is arranged on the side surface of the guide rail seat 3-4, the rotating shaft seat 3-10 is arranged on the left side of the crossbeam seat 3-5 and is mutually connected with the rotating shaft seat 3-10 of the drawing box component 3-1 through the rotating shaft 3-3; 3 groups of kidney holes 3-15 are arranged on the right side of the upper surface of the guide rail seat 3-4, and the cam bearing 3-14 is arranged on the upper surface of the guide rail seat 3-4 and matched with the guide groove on the cam plate 1-2; 1 pair of parallel suction arms 3-8 are symmetrically arranged at the bottom of the guide rail seat 3-4, the upper parts of the suction arms 3-8 are provided with fast locking handles 3-6, the lower parts are provided with 2 groups of adjusting holes 3-7, and 1 pair of suckers 3-9 are arranged on the adjusting holes 3-7; in the suction box opening process, the cam bearings 3-14 move along the guide grooves on the cam plates 1-2 all the time, the two groups of suckers 3-9 are adsorbed on the small faces (width faces) of the paper boxes, and the space between the two groups of suction arms 3-8 is adjusted through the quick locking handles 3-6, so that the suckers 3-9 can suck different length faces of the paper boxes; meanwhile, the adjusting holes 3-7 on the suction arms 3-8 can adjust the upper and lower positions of the suction cups 3-9 to ensure that the suction cups 3-9 are adsorbed at the optimal position of the carton; the positions of the cam bearings 3-14 are adjusted through the kidney holes 3-15, so that the purpose that the side surfaces of the box pulling assembly 3-1 and the box folding assembly 3-2 are opposite to each other at an angle of 90 degrees is achieved, and the box body is ensured to be vertical and not to incline when the box is opened.

As shown in fig. 10, the active high-speed carton opening mechanism and control method suitable for large cartons specifically includes the following steps:

The invention is driven by the speed reducing motor, has high speed, and only needs about 2 seconds from the suction box to the opening of the box at 90 degrees; the suction cup is used for actively opening the carton, the suction cup can open the carton in one step, a large-size carton can be opened, the standard machine type can be used for opening the carton with the length (200 mm-740 mm) multiplied by the width (130mm-490mm) multiplied by the width/2 + height (150mm-725mm), and the stability is high. The carton opening mechanism adopts the suction disc to actively suck the carton without opening nails, and is suitable for rectangular or square cartons without corner shearing.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An active high-speed carton opening mechanism suitable for large cartons is characterized by comprising a fixed frame (1), a driving control mechanism (2) and a forming mechanism (3), wherein the driving control mechanism (2) is installed on a track at the top of the fixed frame (1) through screws, and the forming mechanism (3) is installed on the lower surface of the driving control mechanism (2); the fixing frame (1) comprises a frame (1-1), a cam plate (1-2) and a connecting plate (1-3); the driving control mechanism (2) comprises a speed reducing motor (2-1), a guide rail (2-2), a motor fixing plate (2-3), a position detection plate (2-4), an electric eye (2-5), a detection screw (2-6), a connecting rod (2-7), a bearing seat (2-8), a connecting plate (2-9), a roller groove (2-10), a cam bearing (2-11) and a proximity switch (2-12); the forming mechanism (3) comprises a box pulling assembly (3-1), a box folding assembly (3-2) and a rotating shaft (3-3).

2. The active high-speed carton opening mechanism suitable for the large cartons as claimed in claim 1, wherein the frame (1-1) is of a rectangular frame structure as a whole, the cam plate (1-2) is fixed to the frame (1-1) through a connecting plate (1-3), and the surface of the cam plate (1-2) is provided with a guide groove; waist holes are formed in the connecting plates (1-3) and used for fine adjustment of the positions of the cam plates (1-2).

3. The active high-speed carton opening mechanism suitable for the large cartons as claimed in claim 1, wherein the gear motor (2-1) is mounted in the middle of a motor fixing plate (2-3), the position detection plate (2-4) and the electric eye (2-5) are arranged at the bottom of the gear motor (2-1), and the proximity switch (2-12) is mounted on the motor fixing plate (2-3); one end of the connecting rod (2-7) is connected with a bottom rotating shaft of the speed reducing motor (2-1), the other end of the connecting rod is arranged in the roller groove (2-10) through a cam bearing (2-11), and the detection screw (2-6) is fixed in the center of the upper surface of the connecting rod (2-7); the pair of bearing blocks (2-8) are fixed at the bottoms of the roller grooves (2-10) through connecting plates (2-9), 1 guide rail (2-2) is installed on each bearing block (2-8), the 2 guide rails (2-2) are parallel to each other, and the tail ends of the guide rails are fixed at one side of the motor fixing plate (2-3).

4. An active high-speed carton opening mechanism suitable for large cartons as claimed in claim 3, wherein said position detecting plate (2-4) is fixed outside the rotating shaft at the bottom of the gear motor (2-1), is in the shape of a circular ring, and has 60 holes equidistantly arranged at its edge; the electric eyes (2-5) are positioned at the lower end of the edge of the position detection plate (2-4) and are arranged corresponding to the hole positions at the edge.

5. An active high-speed carton opening mechanism suitable for large cartons as claimed in claim 1, wherein the tops of the carton pulling assembly (3-1) and the carton folding assembly (3-2) are connected with each other through a rotating shaft (3-3) and can rotate relatively, and the top of the carton folding assembly (3-2) is connected with the bottom of the cam plate (1-2) through a screw.

6. The active high-speed carton opening mechanism suitable for the large cartons as claimed in claim 5, wherein the carton pulling assembly (3-1) comprises a guide rail seat (3-4), a beam seat (3-5), a quick locking handle (3-6), an adjusting hole (3-7), a suction arm (3-8), a suction cup (3-9) and a rotating shaft seat (3-10); wherein the crossbeam seat (3-5) is arranged on the side surface of the guide rail seat (3-4), and the rotating shaft seat (3-10) is arranged on the right side of the crossbeam seat (3-5); 1 pair of parallel suction arms (3-8) are symmetrically arranged at the bottom of the guide rail seat (3-4), the upper parts of the suction arms (3-8) are provided with quick locking handles (3-6), the lower parts of the suction arms are provided with 2 groups of adjusting holes (3-7), and 1 pair of suckers (3-9) are arranged on the adjusting holes (3-7).

7. The active high-speed carton opening mechanism suitable for the large cartons as claimed in claim 6, wherein the top of the suction arm (3-8) is fixed inside the guide rail seat (3-4) through a pulley assembly (3-11), a suction arm locking head (3-12) is installed inside the pulley assembly (3-11), and the quick locking handle (3-6) is connected through a handle connecting rod (3-13); the pulley assembly (3-11) comprises a sliding block (3-11-1), rollers (3-11-2) and suction arm connecting holes (3-11-3), wherein 4 rollers (3-11-2) are arranged at four corners of the sliding block (3-11-1), and the suction arm connecting holes (3-11-3) are arranged in the middle of the sliding block (3-11-1) and used for installing suction arm locking heads (3-12).

8. The active high-speed carton opening mechanism suitable for the large cartons as claimed in claim 5, wherein the carton folding assembly (3-2) comprises guide rail seats (3-4), beam seats (3-5), quick locking handles (3-6), adjusting holes (3-7), suction arms (3-8), suction cups (3-9), rotating shaft seats (3-10), cam bearings (3-14) and kidney holes (3-15); wherein the crossbeam seat (3-5) is arranged on the side surface of the guide rail seat (3-4), the rotating shaft seat (3-10) is arranged on the left side of the crossbeam seat (3-5) and is mutually connected with the rotating shaft seat (3-10) of the draw box component (3-1) through the rotating shaft (3-3); the right side of the upper surface of the guide rail seat (3-4) is provided with 3 groups of kidney holes (3-15), and the cam bearing (3-14) is arranged on the upper surface of the guide rail seat (3-4) and matched with the guide groove on the cam plate (1-2); 1 pair of parallel suction arms (3-8) are symmetrically arranged at the bottom of the guide rail seat (3-4), the upper parts of the suction arms (3-8) are provided with quick locking handles (3-6), the lower parts of the suction arms are provided with 2 groups of adjusting holes (3-7), and 1 pair of suckers (3-9) are arranged on the adjusting holes (3-7).

9. An active high-speed carton opening mechanism suitable for large cartons as claimed in any one of claims 1 to 8, wherein the control method of the carton opening mechanism specifically comprises the following steps: