Intelligent carton cutting method

Abstract

The present invention discloses an intelligent carton cutting method, comprising forming a first cut with a through length in the middle of the sealing tape of the carton during the movement of the carton; and also comprising using a cutting blade with a multi-tooth structure to cut the sealing tape to form several second cuts at both ends of the same sealing tape during the movement of the carton. An intelligent carton cutting robot comprises a detection device, a centering mechanism, a side positioning mechanism, a conveying mechanism, a first cutting mechanism and a control system, wherein the first cutting mechanism is used to form a first cut with a through length in the middle of the sealing tape of the carton; and also comprises a second cutting mechanism, wherein the second cutting mechanism has a multi-tooth cutting blade, and the second cutting mechanism is used to form several second cuts at the end of the sealing tape on the carton during the movement of the carton. The beneficial effect of the present invention is that the second cutting blade cuts the tape end of the moving carton, thereby increasing the carton cutting efficiency by 1 to 2 times.

Description

Technical Field

[0001] The invention belongs to the unpacking technology of packaging cartons, in particular to an intelligent carton cutting method. Background Art

[0002] Cartons are usually sealed with tape. When opening the box, it is necessary to first create a slit in the tape to destroy its strength so that the folded cardboard forming the box cover can be opened smoothly. The existing intelligent carton cutting is implemented based on intelligent carton opening equipment, such as an automatic carton opening machine disclosed in the authorization announcement number CN208979205 U. The automatic carton opening machine mainly includes a belt conveyor, a centering device, a detection device, a side pressure device, a cutting device and a control system. Under the control of the control system, when the belt conveyor drives the carton to move, the centering device and the side pressure device press the carton from the top and both sides respectively, and align the cutting position of the cutting device located on the side of the carton with the tape, so that during the movement of the carton, the detection device detects the position of the carton, and the first blade cuts the tape in the entire length direction of the middle of the tape width, and when the carton moves to two set positions, the second blade punches out multiple point-shaped notches extending along the tape width direction at the end of the tape, so that the two folded cardboards of the carton are used to turn the cardboard outward with the help of external force so that the tape is torn from the multiple point-shaped notches, thereby achieving the purpose of opening the carton. However, since the multiple point-shaped notches are formed by punching, the second blade can only use a thin blade structure, and the carton needs to stop during the punching process of the second blade, otherwise, the moving carton is prone to cause blade breakage. Since notches need to be formed at both ends of the sealing tape of a carton in order to successfully complete the unpacking, a carton needs to stop twice during the conveying process. After the punching is completed, the carton is continued to be conveyed. The belt conveyor stops and then starts again. Together with the time for punching, it takes at least 5 seconds, resulting in the existing equipment being able to maintain an unpacking speed of about 350 pieces / h at most, and it is difficult to further improve the unpacking efficiency. In addition, since the notch punched out is the same as the thickness of the knife, and the position to be punched needs to be aligned with the edge of the bent cardboard that constitutes the box cover, or with the gap between the edge of the bent cardboard and the box wall, the position accuracy requirement is relatively high, which makes it more difficult to align the second blade. Summary of the invention

[0003] The purpose of the present invention is to provide an intelligent carton cutting method, so as to form a break on the sealing tape without stopping the carton during the carton conveying process, thereby improving the unpacking efficiency.

[0004] To achieve the purpose of the present invention, the present invention adopts the following technical scheme.

[0005] An intelligent box-cutting robot comprises a detection device, a centering mechanism, a side positioning mechanism, a conveying mechanism, a first cutting mechanism and a control system, wherein the first cutting mechanism is used to form a first cutting cut running through the middle of a sealing tape of a carton; and further comprises a second cutting mechanism, wherein the second cutting mechanism has a multi-toothed cutting knife, and the second cutting mechanism is used to form a plurality of second cutting cuts at the end of the sealing tape on the carton during the movement of the carton, wherein the cutting directions of the second cutting mechanism and the first cutting mechanism are the same.

[0006] The present invention adopts the above-mentioned technical solution, by setting a first cutting mechanism to form a first cut that runs through the middle of the sealing tape of the carton, and cuts the tape in the length direction; and a second cutting mechanism with a multi-tooth structure is set, and the second cutting mechanism cuts the second cut at the end of the sealing tape on the carton without stopping the carton, and several second cuts are parallel to the first cuts, so that the end of the tape forms several thin strips of a set length, which greatly reduces the shear strength of the end of the tape, making it easy for subsequent equipment to open the carton; at the same time, the length of the thin strip at the end of the tape only needs to cover the edge of the bent cardboard, or cover the gap between the edge of the bent cardboard and the box wall, without precise positioning, which can effectively improve the moving speed of the carton. The synergistic effect of the two can increase the efficiency of cutting the carton by 1 to 2 times, and can reduce the hardware accuracy that affects the positioning accuracy of the equipment, and reduce the manufacturing cost of the equipment. It can also avoid frequent starting and stopping of the conveying mechanism, increase the service life of the conveying mechanism, and improve the quality of the carton cutting robot.

[0007] Preferably, the centering mechanism is provided with a first movable plate that can be raised and lowered; two side positioning mechanisms are provided, and each side positioning mechanism is provided with a second movable plate that can be moved horizontally; the first cutting mechanism and the second cutting mechanism are installed on the corresponding second movable plate, and the center lines of the first cutting mechanism and the second cutting mechanism in the height direction are located in the same horizontal plane.

[0008] By setting a centering mechanism, the first cylinder pushes out the first movable plate and the pressure plate so that the entire top of the carton is evenly stressed, thereby improving the stability of the carton during transportation; by setting two side positioning mechanisms to position the two sides of the carton, and setting an adaptive mechanism on one side, it can be used for cartons of more specifications and expand the scope of use; by setting a second optical axis to guide the second movable plate, the second movable plate is parallel to the side of the carton, so that the two sides of the carton are evenly stressed, and the first cutting mechanism and the second cutting mechanism are installed on the second movable plate, so that the tool center lines of the first cutting mechanism and the second cutting mechanism are located in the same horizontal plane, so as to facilitate the cutting of the sealing tape located in the same plane.

[0009] Further preferably, a linkage structure based on a movable pulley force-saving structure is formed between the two side positioning mechanisms and the first movable plate, and the linkage structure is used to make the first movable plate and the side positioning mechanism rise and fall in the same direction, and can maintain a linkage relationship in which the lifting distance of the side positioning mechanism is half of the lifting distance of the first movable plate.

[0010] By setting a linkage structure, the linkage structure may include a sprocket and a chain, the sprocket is set on the side positioning mechanism, one end of the chain is connected to the first movable plate, and the other end is connected to the top plate after passing the sprocket; the side positioning mechanism is supported by the chain through the sprocket, and in the process of the first movable plate moving up and down, the sprocket moves up and down together, and the speed and stroke are both 1 / 2 of the stroke of the moving plate. Therefore, by adjusting the relative positions of the height centers of the first movable plate and the first and second cutting mechanisms of the side positioning mechanism using a standard carton during the equipment debugging process, in the actual use process, affected by the height change of the manufacturing precision box or the box specification, when the height of the first movable plate drops to the end point changes, the height centers of the first and second cutting mechanisms produce a height change of 1 / 2 times the change value of the aforementioned height change. That is, during the box sealing process, as long as the tape is at 1 / 2 of the box height, no matter how the box height changes, when the first movable plate descends to the terminal position, the height center of the first and second cutting mechanisms is always at 1 / 2 of the carton height, and when the tip of the first cutting mechanism is aligned with the seam of the two folded cardboards of the box cover, the first cutting mechanism can form a penetrating first cut on the sealing tape at the seam; the multiple second cuts formed by the second cutting mechanism are distributed on both sides of the first cut at both ends of the tape. Obviously, the chain can be replaced by a traction rope such as a wire rope or a nylon rope, and the sprocket can be replaced by a roller with a grooved wheel structure, and the roller constitutes the movable pulley in the movable pulley labor-saving structure.

[0011] Preferably, each of the second knife-cutting mechanisms comprises an elastic member seat, a knife holder, a third cylinder and a multi-tooth knife, each of the knife holders is fixedly connected to the corresponding second movable plate, the elastic member seat is connected to the knife holder, a first limiting bolt is installed on the knife holder, a first elastic member and a first guide column are arranged in the elastic member seat, the first guide column abuts against the bottom of the first elastic member, the knife holder is rotatably connected to the first swing arm through a first rotating shaft, a first contact member is arranged on the first swing arm, abuts against the first guide column through the first contact member, and the first One end of the swing arm can be abutted against the first limiting bolt, and the other end is connected to the third cylinder through a connecting piece. The piston rod of the third cylinder is connected to the handle of the multi-tooth cutter through a knife holder; the first rotating shaft forms the fulcrum of the first swing arm, and the first swing arm forms a lever. The maximum distance that the multi-tooth cutter on the first swing arm can move toward the carton is limited by the first limiting bolt, and the maximum distance that the multi-tooth cutter on the first swing arm can move away from the carton is limited by the cooperation of the first elastic piece, the first guide column and the first contact piece, so that the multi-tooth cutter is always in contact with the carton during cutting.

[0012] By setting the above structure, the first swing arm forms a lever, the first rotating shaft forms the fulcrum of the first swing arm, and the first limiting bolt limits the maximum distance that the multi-toothed cutter on the first swing arm can move toward the carton, so that the multi-toothed cutter installed on the first swing arm can be inserted into the concave position of the carton; the maximum distance that the multi-toothed cutter on the first swing arm can move away from the carton is limited by the cooperation of the first elastic member, the first guide column and the first contact member, so that the multi-toothed cutter installed on the first swing arm can be inserted into the convex position suitable for the carton, so that the multi-toothed cutter can always be in contact with the carton during cutting; the swing arm floats within a certain range, so that the multi-toothed cutter installed on the swing arm can adapt to the unevenness of the carton, thereby ensuring the quality of cutting.

[0013] Preferably, a shield is connected below the first swing arm, a flat surface is provided on the shield, the multi-toothed cutter is passed through the through hole, and the extension length of the multi-toothed cutter is limited by the shield.

[0014] A protective cover is provided to shield the blade of the multi-tooth cutting knife, a flat surface is provided to keep the blade in contact with the carton, a through hole is provided on the flat surface for the multi-tooth cutting knife to extend out, thereby limiting the extension length of the multi-tooth cutting knife and avoiding damage to items in the carton when cutting the carton. The flat surface provides support for the multi-tooth cutting knife and avoids the multi-tooth cutting knife from breaking during the cutting process.

[0015] Preferably, each tooth of the multi-toothed knife is in the shape of a diamond-shaped quadrangular pyramid, and the cone edge located in the thickness direction of the tooth constitutes a blade, and the blade is inclined at a set angle to the plane where the tape is located.

[0016] By setting the blade teeth at the tip of the knife to a diamond-shaped quadrangular pyramid, the strength and rigidity of the blade teeth are improved to avoid breakage when cutting the box. At the same time, the conical structure of the blade teeth makes it easy for the blade tip to pierce the tape, and the conical edges in the thickness direction of the blade teeth form a blade to cut the tape. The blade and the plane where the tape is located are tilted at a set angle, and the blade located on the conical edge smoothly cuts a distance at the end of the tape into several thin strips, which makes it easy for subsequent equipment to easily break the thin strips and achieve rapid unpacking. It is convenient to use several blades to cut the end of the tape into several thin strips with the same width as the spacing between the blade teeth during the movement of the carton with the conveying mechanism, which greatly reduces the shear strength of the end of the tape, making it easy for subsequent equipment to easily break the thin strips and achieve rapid unpacking.

[0017] The beneficial effect of the present invention is that a first cut is formed in the middle of the sealing tape of the carton through the length by setting a first cutter mechanism, and the tape is cut in the length direction; and a second cutter with a multi-tooth structure is set, and the second cutter is a multi-tooth cutter, and the second cutter is used to cut a second cut at the end of the sealing tape on the carton without stopping the carton, and several second cuts are parallel to the first cuts, so that the end of the tape forms several thin strips of a set length, so that the shear strength of the end of the tape is greatly reduced, which is convenient for subsequent equipment to easily open the carton; at the same time, the length of the thin strip at the end of the tape only needs to cover the edge of the bent cardboard, or cover the gap between the edge of the bent cardboard and the box wall, without precise positioning, and can effectively improve the moving speed of the carton. The synergistic effect of the two can increase the efficiency of cutting the box to 1 to 2 times, and can reduce the hardware accuracy of the equipment positioning accuracy, and reduce the equipment manufacturing cost. It can also avoid frequent starting and stopping of the conveying mechanism, increase the service life of the conveying mechanism, and improve the quality of the box cutting robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the intelligent box-scraping robot of the present invention;

[0019] Figure 2 This is a front view of the intelligent box-carrying robot of the present invention;

[0020] Figure 3 The present invention Figure 2 AA section view;

[0021] Figure 4 It is a three-dimensional diagram of the second cutting mechanism of the intelligent box-cutting robot in the present invention;

[0022] Figure 5 This is a front view of the multi-toothed cutting blade of the intelligent box-cutting robot of the present invention;

[0023] Figure 6 It is a left view of the multi-toothed cutting blade of the intelligent box-cutting robot in the present invention;

[0024] Figure 7 The present invention Figure 2 A magnified view of the K part;

[0025] Figure 8 It is a structural diagram of the second cutting mechanism of the intelligent box-cutting robot in the present invention;

[0026] Fig. 9 It is a structural diagram of the first cutting mechanism of the intelligent box-cutting robot in the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the described embodiments.

[0028] The figure marks in the specification of the present invention include: centering mechanism 1, top plate 11, first movable plate 12, first cylinder 13, first optical axis 14, pressure plate 15, side positioning mechanism 2, side plate 21, second movable plate 22, roller 23, second optical axis 24, second cylinder 25, avoidance hole 26, first cutting knife mechanism 3, seat body 31, second rotating shaft 32, cutting knife 33, knife cover 34, second swing arm 35, second contact piece 36, second guide column 37, second elastic piece 38, second limiting bolt 39, second cutting knife mechanism 4, elastic piece seat 41, third cylinder 42, multi-tooth cutting knife 43, blade 431, first rotating shaft 44, protective cover 45, first contact piece 46, first guide column 47, first elastic piece 48, first swing arm 49, first limiting bolt 411, conveying mechanism 5, frame 6, chain 7.

[0029] An intelligent box-cutting robot comprises a detection device, a centering mechanism 1, a side positioning mechanism 2, a conveying mechanism 5, a first cutting mechanism 3 and a control system, wherein the first cutting mechanism 3 is used to form a first cut running through the middle of a sealing tape of a carton; and further comprises a second cutting mechanism 4, wherein the second cutting mechanism 4 has a multi-toothed cutting knife 43, and the second cutting mechanism 4 is used to form a plurality of second cuts at the end of the sealing tape on the carton during the movement of the carton, wherein the cutting directions of the second cutting mechanism 4 and the first cutting mechanism 3 are the same.

[0030] The centering mechanism 1 is provided with a first movable plate 12 which can be raised and lowered; two side positioning mechanisms 2 are arranged, and each side positioning mechanism 2 is provided with a second movable plate 22 which can be moved horizontally; the first cutting mechanism 3 and the second cutting mechanism 4 are installed on the second movable plate 22, and the center lines of the second cutting mechanism 4 and the first cutting mechanism 3 in the height direction are located in the same horizontal plane.

[0031] A linkage structure based on a movable pulley labor-saving structure is formed between the two side positioning mechanisms 2 and the first movable plate 12, and the linkage structure is used to make the first movable plate 12 and the side positioning mechanism 2 rise and fall in the same direction, and can maintain a linkage relationship in which the lifting distance of the side positioning mechanism 2 is half of the lifting distance of the first movable plate 12.

[0032] The linkage structure based on the movable pulley labor-saving structure includes a sprocket and a chain 7, wherein the sprocket is connected to the side plate 21, one end of the chain 7 is connected to the first movable plate 12, and the other end is connected to the top plate 11 after passing around the sprocket; the side positioning mechanism 2 is supported by the chain 7 through the sprocket, and during the up and down movement of the first movable plate 12, the sprocket moves up and down together, and the speed and stroke are both 1 / 2 of the stroke of the movable pressing plate 15.

[0033] The sprocket in the linkage structure of the aforementioned movable pulley labor-saving structure can be replaced by a roller of a grooved wheel structure, the roller constitutes the movable pulley in the movable pulley labor-saving structure, and the chain 7 can be replaced by a steel wire rope or a nylon rope.

[0034] Among them, see Figures 1 to 3 The centering mechanism 1 includes a top plate 11, a first movable plate 12, a first optical axis 14 and a pressure plate 15. There are at least 4 first optical axes 14, one end of each of the first optical axes 14 is vertically mounted on the frame 6, and the other end is fixedly connected to the top plate 11. The first movable plate is mounted on the first optical axis 14 through a sleeve and is located below the top plate 11; a first cylinder 13 is mounted on the top plate 11, and a piston rod of the first cylinder 13 is fixedly connected to the first movable plate 12; a pressure plate 15 is connected below the first movable plate 12, and two pressure plates 15 are provided, and the two pressure plates 15 extend along the conveying direction of the conveying mechanism 5, and a roller 23 is mounted below each of the pressure plates 15.

[0035] See also Figures 1 to 3 Each of the side positioning mechanisms 2 includes a side plate 21, a second movable plate 22 and a second optical axis 24. Each of the side plates 21 is vertically mounted on the corresponding first optical axis 14 and can slide up and down along the first optical axis 14. The second optical axes 24 are horizontally arranged, and there are several of them. One end of each of the second optical axes 24 is fixed on the corresponding second movable plate 22, and the other end is connected to the corresponding side plate 21 through a sleeve. Each of the second movable plates 22 is located on the inner side of the corresponding side plate 21, and each of the second movable plates 22 extends along the conveying direction of the conveying mechanism 5.

[0036] See also Figure 2 and Figure 3A second cylinder 25 is installed on each of the side panels 21, and a piston rod of each of the second cylinders 25 is fixedly connected to a corresponding second movable plate 22, so that the corresponding second movable plate 22 slides horizontally along the second optical axis 24, and a roller 23 is installed on the inner side of each of the second movable plates 22.

[0037] See also Figure 3 , Figure 4 , Figure 5 and Figure 7 , several through holes are provided on the two second movable plates 22, and the first cutting mechanism 3 and the second cutting mechanism 4 are installed on the two second movable plates 22. Partial components of the first cutting mechanism 3 and the second cutting mechanism 4 can pass through the corresponding second movable plates 22 along the corresponding through holes and contact the carton; each of the side plates 21 is provided with an avoidance hole 26, through which the corresponding second cylinder 25, the first cutting mechanism 3 and the second cutting mechanism 4 are avoided.

[0038] See also Figures 4 to 8 Each of the second knife-cutting mechanisms 4 includes an elastic member seat 41, a knife holder, a third cylinder 42 and a multi-tooth knife-cutting mechanism 43. Each of the knife holders is fixedly connected to the corresponding second movable plate 22. The elastic member seat 41 is connected to the knife holder. A first limiting bolt 411 is installed on the knife holder. A first elastic member 48 and a first guide column 47 are arranged in the elastic member seat 41. The first guide column 47 abuts against the bottom of the first elastic member 48. The knife holder is rotatably connected to the first swing arm 49 through the first rotating shaft 44. The first swing arm 49 is provided with a first contact member 46, which abuts against the first guide column 47 through the first contact member 46. The first swing arm One end of 49 can be abutted against the first limiting bolt 411, and the other end is connected to the third cylinder 42 through a connecting piece. The piston rod of the third cylinder 42 is connected to the handle of the multi-tooth cutter 43 through a cutter seat; the first swing arm 49 forms a lever, and the first rotating shaft 44 forms the fulcrum of the first swing arm 49. The first limiting bolt 411 limits the maximum distance that the multi-tooth cutter 43 on the first swing arm 49 can move toward the carton. The cooperation of the first elastic member 48, the first guide column 47 and the first contact member 46 limits the maximum distance that the multi-tooth cutter 43 on the first swing arm 49 can move away from the carton, so that the multi-tooth cutter 43 is always in contact with the carton during cutting.

[0039] See also Figure 5 and Figure 6 A shield 45 is connected below the first swing arm 49 , and a flat surface is provided on the shield 45 . The multi-toothed cutter 43 is passed through the through hole, and the extension length of the multi-toothed cutter 43 is limited by the shield 45 .

[0040] See also Figure 3 and Figure 5Each tooth of the multi-toothed knife 43 is in the shape of a diamond-shaped quadrangular pyramid, and the cone edge located in the thickness direction of the tooth constitutes a blade 431, and the blade 431 is inclined at a set angle to the plane where the tape is located.

[0041] See also Fig. 9 The first cutting knife mechanism 3 includes a seat body 31, a second swing arm 35 and a cutting knife 33. The second movable plate 22 is fixedly connected to the knife holder. The seat body 31 is connected to the knife holder. A second limiting bolt 39 is installed on the knife holder. A second elastic member 38 is installed in the seat body 31. The second elastic member 38 abuts against one end of the second guide column 37. The other end of the second guide column 37 abuts against the second contact member 36 on the second swing arm 35. The second swing arm 35 is rotatably connected to the knife holder through the second rotating shaft 32. One end of the second swing arm 35 can abut against the second limiting bolt 39. A cutting knife 33 is installed at the other end; the second rotating shaft 32 forms the fulcrum of the second swing arm 35, and the second swing arm 35 forms a lever. The second limiting bolt 39 limits the maximum distance that the cutting knife 33 on the second swing arm 35 can move toward the carton, and the cooperation of the second elastic member 38, the second guide column 37 and the second contact member 36 limits the maximum distance that the cutting knife 33 on the second swing arm 35 can move away from the carton, so that the cutting knife 33 is always in contact with the carton during cutting; a knife cover 34 is also installed on the second swing arm 35, and the protruding length of the tip of the cutting knife 33 is limited by the knife cover 34.

[0042] During operation, the carton enters the carton conveying mechanism 5. During the process of the conveying mechanism 5 conveying the carton, when one end of the carton enters the conveying mechanism 5, the first group of photoelectric sensors of the detection device detects the carton, and the first cylinder 13 on the centering mechanism 1 pushes the first movable plate 12 to move downward, driving the roller 23 below to move downward and press on the upper surface of the carton. During the movement of the first movable plate 12, the side positioning mechanisms 2 on both sides of the carton are driven to move through the chain sprocket, and the second cylinders 25 on the side positioning mechanisms 2 on both sides push the second movable plate, and the second movable plate 22 drives the inner roller 23 to contact the carton, and the first cutting mechanism 3 and the multi-tooth cutting mechanism 43 on the two side positioning mechanisms 2 move accordingly. The second group of photoelectric sensors detects the entry end of the carton, and at this time, the third cylinder 42 quickly pushes out the multi-toothed cutter 43 of the second cutter mechanism 4. After the multi-toothed cutter 43 cuts into the end of the carton, the carton continues to move. The multi-toothed cutter 43 cuts and withdraws from the carton within the set time, and cuts a distance at the end of the sealing tape at the entry end of the carton into several thin strips; when the entrance end of the carton enters the position corresponding to the cutter 33, the cutter 33 is aligned with and inserted into the middle of the entry end of the carton tape. As the carton moves, the tape is cut along the length direction and forms a straight scratch; when the third group of photoelectric sensors in the detection device detects the other end of the carton, the third cylinder 42 quickly pushes out the multi-toothed cutter 43 of the second cutter mechanism 4. When the multi-toothed cutter 43 rushes out, the carton continues to move. The multi-toothed cutter 43 cuts and retracts within the set time, and cuts a distance at the end of the tape at the other end of the carton into several thin strips. Since the ends of the tape are cut into several thin strips, the shear strength of the width direction of the two ends of the tape is greatly reduced. Finally, there will be a straight scratch on the tape on both sides of the carton, and several thin strips at both ends of the tape. This allows the carton tape to be quickly cut open, so that subsequent equipment can easily break off the thin strips at the end of the tape through a suction cup or a manipulator to open the carton.

[0043] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for intelligently cutting a carton, performed by an intelligent carton-cutting robot, wherein the steps of the method for intelligently cutting a carton include forming a first cut that runs through the middle of the sealing tape of the carton during the movement of the carton; characterized in that: The invention also includes cutting the sealing tape at both ends of the same sealing tape using a notching blade with a multi-tooth structure to form a plurality of second notches during the movement of the carton, wherein the second notches are parallel to the first notches; The intelligent box-cutting robot comprises a detection device, a centering mechanism (1), a side positioning mechanism (2), a conveying mechanism (5), a first cutting mechanism (3) and a control system, wherein the first cutting mechanism (3) is used to form a first cutting cut that runs through the middle of the sealing tape of the carton; and further comprises a second cutting mechanism (4), wherein the second cutting mechanism (4) has a multi-toothed cutting knife (43), and the second cutting mechanism (4) is used to form a plurality of second cutting cuts at the end of the sealing tape on the carton while the carton is moving without stopping, and the second cutting mechanism (4) and the first cutting mechanism (3) have the same cutting direction; The centering mechanism (1) is provided with a first movable plate (12) that can be raised and lowered; two side positioning mechanisms (2) are provided, each of which is provided with a second movable plate (22) that can be moved horizontally, and the second movable plate (22) is provided with a plurality of through holes; the first cutting mechanism (3) and the second cutting mechanism (4) are installed on the second movable plate (22), and the center lines of the first cutting mechanism (3) and the second cutting mechanism (4) in the height direction are located in the same horizontal plane; A linkage structure based on a movable pulley labor-saving structure is formed between the two side positioning mechanisms (2) and the first movable plate (12), and the linkage structure is used to enable the first movable plate (12) and the side positioning mechanism (2) to rise and fall in the same direction, and to maintain a linkage relationship in which the lifting distance of the side positioning mechanism (2) is half of the lifting distance of the first movable plate (12); The second knife-cutting mechanism (4) further comprises a knife holder and a third cylinder (42), wherein the third cylinder (42) is mounted on the knife holder, a piston rod of the third cylinder (42) is connected to a knife handle of a multi-tooth knife (43) via a knife holder, a first swing arm (49) is connected below the knife holder, the multi-tooth knife (43) is passed through the first swing arm (49), an elastic member seat (41) is mounted on the knife holder, a first elastic member (48) and a first guide column (47) are arranged in the elastic member seat (41), the first guide column (47) abuts against the first elastic member The tool holder is rotatably connected to the first swing arm (49) through the first rotating shaft (44), and the first swing arm (49) is provided with a first contact member (46), which abuts against the first guide column (47) through the first contact member (46). The first swing arm (49) forms a lever, and the first rotating shaft (44) forms a fulcrum of the first swing arm (49). The maximum distance that the multi-toothed cutter (43) on the first swing arm (49) moves away from the carton is limited by the cooperation of the first elastic member (48), the first guide column (47) and the first contact member (46).

2. The intelligent carton cutting method according to claim 1, characterized in that: The cutting time is 0.8 seconds to 1.2 seconds.

3. The intelligent carton cutting method according to claim 1, characterized in that: The first contact member (46) comprises a mounting shaft and a bearing. The first swing arm (49) is provided with a groove. The mounting shaft passes through the groove. The bearing surrounds the mounting shaft and is located in the groove. The bearing abuts against the first guide column (47) through the bearing.

4. The intelligent carton cutting method according to claim 1, characterized in that: A first limiting bolt (411) is installed on the knife holder, and the end of the first swing arm (49) away from the multi-toothed cutting knife (43) can be abutted against the first limiting bolt (411), so that the maximum distance that the multi-toothed cutting knife (43) on the first swing arm (49) can move toward the carton is limited by the first limiting bolt (411).

5. The intelligent carton cutting method according to claim 1, characterized in that: A shield (45) is connected below the first swing arm (49), and a plane portion is provided on the shield (45). The multi-toothed cutter (43) is inserted through the through hole, and the extension length of the multi-toothed cutter (43) is limited by the shield.

6. According to the intelligent carton cutting method according to claim 1, each tooth of the multi-tooth cutting knife (43) is in the shape of a diamond-shaped quadrangular pyramid, and the cone edge located in the thickness direction of the tooth constitutes a blade (431), and the blade (431) is inclined at a set angle to the plane where the tape is located.

Images