A packing box tape cutting device and a tape cutting method thereof

Abstract

The present invention discloses a packing box tape cutting device and a tape cutting method thereof. The tape cutting device comprises a frame, a tape pressing mechanism, a tie tape guiding mechanism and a cutting mechanism. The tie tape guiding mechanism of the present invention can guide the scattered / attached tie tapes to fall below the tape pressing mechanism; the tape pressing mechanism and the cutting mechanism respectively use air cylinders to control tape pressing and tape cutting, with reliable control and low cost. Moreover, the tape pressing mechanism is designed with a pressing device having a spring pressing force, making the tape pressing action more reasonable, facilitating cooperation with the cutting mechanism for subsequent tape cutting actions, and at the same time capable of realizing tape pressing recovery; the assembled cutting knife designed in the cutting mechanism is assembled by a fixture block, and a tool mounting groove designed in the fixture block makes the cutting knife convenient for positioning and replacement, which is very convenient; at the same time, it can also be used in conjunction with an industrial robot to achieve mechanical automation, improve work efficiency and production benefits. The components of the whole device cooperate with each other in operation, with a compact and simple structure, and are convenient for installation.

Description

Technical Field

[0001] The present invention relates to a packing box tape cutting device and a tape cutting method thereof, which can be used in occasions where products with packing boxes such as cigarette packets on a cigarette production line need to remove tie tapes, and belongs to the field of industrial production machinery. Background Art

[0002] On a traditional cigarette production line, cigarette packets are involved in packing boxes, and unpacking relies on manual labor. The cigarette packets are heavy, resulting in low efficiency.

[0003] However, realizing mechanical automation for the steps that are manually operated on the production line can ensure the improvement of the production line efficiency, achieve a non-man working environment, and bring better economic benefits to the enterprise. Therefore, it is necessary to propose a design of a tape cutting device suitable for tie tapes on packing boxes such as cigarette packets on a cigarette production line. Summary of the Invention

[0004] The present invention provides a packing box tape cutting device and a tape cutting method thereof, which can guide the tie tape of the packing box, and further cut and recycle the tape on the basis of pressing the tape.

[0005] The technical solution of the present invention is: a packing box tape cutting device, including a frame, a tape pressing mechanism 3, a tie tape guiding mechanism 5, and a cutting mechanism 7;

[0006] The frame is used to install the tape pressing mechanism 3, the tie tape guiding mechanism 5, and the cutting mechanism 7;

[0007] The tape pressing mechanism 3 includes a pressing device 19 and a tape pressing cylinder 30; wherein, the output end of the tape pressing cylinder 30 fixed inside the frame is connected to one end of the pressing device 19, and the other end of the pressing device 19 is a free end; the pressing device 19 is driven by the tape pressing cylinder 30 to move up and down in the vertical direction;

[0008] The tie tape guiding mechanism 5 includes a tie tape guiding block I 10, a tie tape guiding block II 25, and a tie tape guiding block III 28; wherein, the front ends of the tie tape guiding block I 10, the tie tape guiding block II 25, and the tie tape guiding block III 28 are free ends, the rear ends of the tie tape guiding block I 10, the tie tape guiding block II 25, and the tie tape guiding block III 28 are fixed to the inner side of the frame, a notch is formed in the upper part of the tie tape guiding block III 28 and is matched with the assembled cutting knife 11 in the cutting mechanism 7, and the tie tape guiding block I 10 is matched with the pressing device 19 in the tape pressing mechanism 3;

[0009] The cutting mechanism 7 includes an assembled cutting knife 11 and a tape cutting cylinder 12; wherein, the output end of the tape cutting cylinder 12 fixed inside the frame is connected to one end of the assembled cutting knife 11, and the other end of the assembled cutting knife 11 is a cutting end.

[0010] It further includes a detection mechanism 4; the detection mechanism includes a cylinder 26 and a limit switch 27; wherein, the output end of the cylinder 26 fixed on the outer side of the frame is connected to the limit switch 27; there is a distance between the bottom end of the limit switch 27 and the bottom surface of the cable tie guide block III 28 / the cable tie guide block I 10, and the vertical distance is a.

[0011] The frame includes a front side connecting plate 1, a top plate 2, a left side connecting plate 21, a rear side connecting plate 22, and a right side connecting plate 23; wherein, one end of the whole formed by sequentially connecting the front side connecting plate 1, the left side connecting plate 21, the rear side connecting plate 22, and the right side connecting plate 23 installed at the bottom of the top plate 2 is the closed end, and the other end of the whole is the open end; the bottommost surface of the frame is higher than the top surface of the cable tie guide block I 10 / the cable tie guide block III 28.

[0012] The pressing device 19 is a symmetric mechanism, including a floating joint 16, a spring 18, an upper pressing block 41, a linear bearing 42, a pressing block guide rod 43, and a lower pressing block 44; wherein, the floating joint 16 is connected to the output end of the tape pressing cylinder 30 from above, the floating joint 16 is connected to the upper pressing block 41 from below, the upper pressing block 41 has holes at both ends for installing the linear bearing 42 respectively, one end of the pressing block guide rod 43 is installed on the lower pressing block 44 through a threaded hole, the other end of the pressing block guide rod 43 is matched with the linear bearing 42, the spring 18 is installed on the pressing block guide rod 43 between the upper pressing block 41 and the lower pressing block 44, and one end of the spring 18 is fixed to the upper pressing block 41 and the other end is fixed to the lower pressing block 44; wherein, the axial direction of the pressing block guide rod 43 is parallel to the moving direction of the output end of the tape pressing cylinder 30.

[0013] The cable tie guide block I 10, the cable tie guide block II 25, and the cable tie guide block III 28 are parallel, the cable tie guide block I 10 and the cable tie guide block III 28 are at the same height, the cable tie guide block II 25 is installed above the cable tie guide block III 28 and there is a spacing between them; the bottom surface of the cable tie guide block II 25 is lower than the bottom surface of the tape pressing mechanism 3 and lower than the bottom surface of the tape cutting mechanism 7; the front end faces of the cable tie guide block I 10 and the cable tie guide block III 28 are flush, the front end face of the cable tie guide block II 25 and the front end face of the cable tie guide block I 10 are arranged front and back and the front end face of the cable tie guide block II 25 extends out of the frame, and the rear end face of the cable tie guide block II 25 is located behind the front end face of the pressing device 19.

[0014] The cable tie guide block I 10, the cable tie guide block II 25, and the cable tie guide block III 28 are beveled guide blocks, the bevels of the cable tie guide block I 10 and the cable tie guide block III 28 are streamlined convex arc surfaces above the front end, and the bevel of the cable tie guide block II 25 is streamlined concave below the front end.

[0015] The rear end of the cable tie guide block II 25 is connected to one end of the guide threaded rod 9, and the other end of the guide threaded rod 9 is fixed in the frame through a connecting block 8.

[0016] The assembled cutter 11 includes a left cutter clamping block 34, a right cutter clamping block 35, an upper pressure plate 36, an internal hexagonal screw II 37, a set screw 39, and a blade 40. Among them, the left cutter clamping block 34 is firmly connected to the right cutter clamping block 35. There is a tool loading gap at the lower end of the left cutter clamping block 34, and the blade 40 loaded into the tool loading gap is clamped by the set screw 39. The two diagonals of the upper pressure plate 36 are respectively connected to the upper parts of the left cutter clamping block 34 and the right cutter clamping block 35 through the internal hexagonal screw II 37, and the middle position of the upper pressure plate 36 is connected to the tape cutting cylinder 12.

[0017] A tape cutting method for a packing box tape cutting device is carried out by using a packing box tape cutting device including a detection mechanism, and specifically includes:

[0018] S1. Driven by the cylinder 26, the limit switch 27 moves downward until it contacts the packing box and then the limit switch 27 is retracted to obtain the descending distance of the limit switch 27. The descending distance of the limit switch 27 is the distance from the initial position of the limit switch 27 to the contact with the packing box.

[0019] S2. The robot controls the tape cutting device to descend vertically until the bottom surfaces of the tie-tape guide block I 10 and the tie-tape guide block III 28 contact the packing box. Among them, the descending distance of the tape cutting device is the descending distance of the limit switch 27 - the vertical distance a. The vertical distance a is the vertical distance between the bottom end of the limit switch 27 and the bottom surface of the tie-tape guide block III 28 / the tie-tape guide block I 10.

[0020] S3. The robot drives the tape cutting device to move along the cutting direction. The tie-tape guide block II 25 is used to guide the packing box tie-tape to fall onto the tie-tape guide block I 10 and the tie-tape guide block III 28, and the tie-tape guide block I 10 and the tie-tape guide block III 28 in the tape cutting device are used to pick up the tie-tape.

[0021] S4. The robot drives the tape cutting device to continue moving along the cutting direction, so that the tie-tape on the tie-tape guide block I 10 and the tie-tape guide block III 28 moves from the front end to the rear end of the tie-tape guide block.

[0022] S5. The pressing belt cylinder 30 drives the pressing device 19 to move downward until it presses the tie-tape on the tie-tape guide block I 10.

[0023] S6. According to the set time, the robot drives the tape cutting cylinder 12 to control the assembled cutter 11 to move downward to cut the tie-tape on the tie-tape guide block III 28.

[0024] It also includes recycling: when cutting the tie-tape, the pressing belt cylinder 30 maintains the pressing belt state, and the robot drives the tape cutting device to move in the reverse direction to complete the tape pulling action.

[0025] The beneficial effects of the present invention are as follows: The cable tie guiding mechanism of the present invention can guide the scattered / attached cable ties to fall under the cable pressing mechanism; the cable pressing mechanism and the shearing mechanism respectively use air cylinders to control cable pressing and cable shearing, with reliable control and low cost. Moreover, the cable pressing mechanism is designed with a pressing device having a spring pressing force, making the cable pressing action more reasonable, facilitating cooperation with the shearing mechanism for subsequent cable shearing actions, and at the same time being able to be used to realize cable pressing recovery; the assembled cutting knife designed in the shearing mechanism is assembled by a fixture block, and a knife mounting groove designed in the fixture block makes the cutting knife convenient for positioning and replacement, which is very convenient; at the same time, it can also be used in conjunction with an industrial robot to achieve mechanical automation, improve work efficiency, and increase production benefits. Each component of the entire device cooperates in operation, with a compact and simple structure, and is convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an axonometric view of the cable cutting device of the present invention;

[0027] Figure 2 is a right view of the internal structure of the cable cutting device of the present invention;

[0028] Figure 3 is an axonometric view of the internal structure of the cable cutting device of the present invention;

[0029] Figure 4 is a front view of the cable cutting device of the present invention;

[0030] Figure 5 is a mounting position diagram of the cable tie guiding mechanism of the cable cutting device of the present invention;

[0031] Figure 6 is a mounting position diagram of the limit switch mechanism of the cable cutting device of the present invention;

[0032] Figure 7 is a schematic diagram of the mounting position of the sensor of the cable cutting device of the present invention;

[0033] Figure 8 is an axonometric view of the assembled cutting knife of the present invention;

[0034] Figure 9 is a schematic diagram of the cable tie guiding block III of the cable cutting device of the present invention;

[0035] Figure 10 is an axonometric view of the pressing device of the present invention;

[0036] Figure 11 is an axonometric view of the cooperation between the assembled cutting knife, the cutting knife guiding groove and the cable tie guiding block I of the cable cutting device of the present invention;

[0037] Figure 12 is a schematic diagram of the spring connecting the upper and lower pressing plates in the pressing device of the present invention;

[0038] Figure 13 It is a schematic diagram of the tape cutting device of the present invention used in conjunction with an industrial robot;

[0039] Figure 14 It is a schematic diagram of the tape cutting workstation of the present invention;

[0040] The labels in the figure are as follows: 1 - front connecting plate, 2 - top plate, 3 - tape pressing mechanism, 4 - detection mechanism, 5 - tie belt guiding mechanism, 6 - nut of tie belt guiding mechanism, 7 - tape cutting mechanism, 8 - connecting block, 9 - guiding threaded rod, 10 - tie belt guiding block I, 11 - assembled cutter, 12 - tape cutting cylinder, 13 - magnetic sensor I, 14 - bolt, 15 - nut, 16 - floating joint, 17 - nut of floating joint, 18 - spring, 19 - pressing device, 20 - cutter guiding groove, 21 - left connecting plate, 22 - rear connecting plate, 23 - right connecting plate, 24 - socket head cap screw III, 25 - tie belt guiding block II, 26 - cylinder, 27 - limit switch, 28 - tie belt guiding block III, 29 - cylinder connecting plate, 30 - tape pressing cylinder, 31 - magnetic sensor II, 32 - nut of cylinder connecting plate, 33 - socket head cap screw I, 34 - left tool clamping block, 35 - right tool clamping block, 36 - upper pressing plate, 37 - socket head cap screw II, 38 - clamping block bolt, 39 - set screw, 40 - blade, 41 - upper pressing block, 42 - linear bearing, 43 - pressing block guiding rod, 44 - lower pressing block. Specific embodiments

[0041] The following will further illustrate the invention in conjunction with the accompanying drawings and embodiments, but the content of the present invention is not limited to the described scope.

[0042] Embodiment 1: As Figure 1-14 shown, a tape cutting device for a packing box includes a frame, a tape pressing mechanism 3, a tie belt guiding mechanism 5, and a cutting mechanism 7;

[0043] The frame is used to install the tape pressing mechanism 3, the tie belt guiding mechanism 5, and the cutting mechanism 7;

[0044] The tape pressing mechanism 3 includes a pressing device 19 and a tape pressing cylinder 30; wherein, the output end of the tape pressing cylinder 30 fixed inside the frame is connected to one end of the pressing device 19, and the other end of the pressing device 19 is a free end; the pressing device 19 is driven by the tape pressing cylinder 30 to move vertically up and down;

[0045] The cable tie guiding mechanism 5 includes a cable tie guiding block I 10, a cable tie guiding block II 25, and a cable tie guiding block III 28. Among them, the front ends of the cable tie guiding block I 10, the cable tie guiding block II 25, and the cable tie guiding block III 28 are free ends, and the rear ends of the cable tie guiding block I 10, the cable tie guiding block II 25, and the cable tie guiding block III 28 are fixed to the inner side of the frame. A notch is formed in the upper part of the cable tie guiding block III 28 to cooperate with the assembled cutter 11 in the tape cutting mechanism 7, and the cable tie guiding block I 10 cooperates with the pressing device 19 in the tape pressing mechanism 3.

[0046] The tape cutting mechanism 7 includes an assembled cutter 11 and a tape cutting cylinder 12. Among them, the output end of the tape cutting cylinder 12 fixed inside the frame is connected to one end of the assembled cutter 11, and the other end of the assembled cutter 11 is the cutting end.

[0047] Optionally, a detection mechanism 4 may also be included. The detection mechanism includes a cylinder 26 and a limit switch 27. Among them, the output end of the cylinder 26 fixed outside the frame is connected to the limit switch 27. There is a distance between the bottom end of the limit switch 27 and the bottom surface of the cable tie guiding block III 28 / the cable tie guiding block I 10, and the vertical distance is a. Among them, the bottom surfaces of the cable tie guiding block III 28 / the cable tie guiding block I 10 are on the same plane and are the bottommost surface of the entire shearing device.

[0048] Specifically, the cylinder 26 is installed outside the left connecting plate 21 in the frame through an internal hexagonal bolt, the limit switch 27 is connected to the cylinder 26, and the cylinder 26 drives the limit switch 27 to realize the detection of the height of the cigarette packet.

[0049] Optionally, the frame includes a front connecting plate 1, a top plate 2, a left connecting plate 21, a rear connecting plate 22, and a right connecting plate 23. Among them, the bottom of the top plate 2 is installed at one end of the whole formed by sequentially connecting the front connecting plate 1, the left connecting plate 21, the rear connecting plate 22, and the right connecting plate 23 in sequence, and the other end of the whole is an open end. The bottommost surface of the frame is higher than the top surface of the cable tie guiding block I 10 / the cable tie guiding block III 28.

[0050] Specifically, the front connecting plate 1, the left connecting plate 21, the rear connecting plate 22, and the right connecting plate 23 are fixedly connected to each other through internal hexagonal screws, and together with the top plate 2, they form the appearance of the whole tape cutting device, which can be used to install various components and protect the installed components. The top of the top plate 2 is connected to an industrial robot. The tape pressing mechanism 3 is installed on the inner side of the left connecting plate 21, the detection mechanism 4 is installed on the outer side of the connecting plate II 21, and the shearing mechanism 7 is installed on the inner side of the rear connecting plate 22.

[0051] Specifically, the cylinder connecting plate 29 is used to connect the belt pressing cylinder 30 and the left connecting plate 21 by bolts, with one on each of the upper and lower sides symmetrically, and a reinforcing plate can be set; the belt pressing cylinder 30 is connected to the cylinder connecting plate 29 by socket head cap screws, and the cylinder connecting plate 29 is then installed on the left connecting plate 21 by bolts and fixed by the cylinder connecting plate nut 32; the belt pressing cylinder 30 is connected to the pressing device 19 in a threaded form.

[0052] Specifically, the tape cutting cylinder 12 is connected to the connecting plate by socket head cap screws Ⅰ33, and the connecting plate is then installed on the rear connecting plate 22 by bolts 14 and fixed by nuts 15. The magnetic sensor Ⅰ13 is located at the lower limit position of the cylinder, and the magnetic sensor Ⅱ31 is located at the upper limit position of the cylinder. The telescopic length of the cylinder can be judged by the two magnetic switches. The assembled cutter 11 is connected to the tape cutting cylinder 12 in a threaded connection form. The cutter guide groove 20 is installed on the rear connecting plate 22 by socket head cap screws and used in cooperation with the assembled cutter 11 to guide the cutter to cut accurately. The center line of the tie-tape guide block Ⅰ10 is perpendicular to the axis of the tape cutting cylinder 12 and is located in the same plane, and it is firmly connected to the left connecting plate 22 by socket head cap screws Ⅲ24. The tie-tape guide block Ⅰ10 is streamlined, and the front part has a certain inclination angle. The width A of the tie-tape guide block Ⅰ is slightly wider than the width of the tie-tape, and the middle part is a hollow part, so that the cutter can cut down to cut off the tie-tape. Figure 7 The width A in the middle is slightly wider than the width of the tie-tape, and the middle part is a hollow part, so that the cutter can cut down to cut off the tie-tape.

[0053] Optionally, the pressing device 19 is a symmetric mechanism, including a floating joint 16, a spring 18, an upper pressing block 41, a linear bearing 42, a pressing block guide rod 43, and a lower pressing block 44; wherein, the floating joint 16 is connected to the output end of the belt pressing cylinder 30 from above, and the floating joint 16 is connected to the threaded hole in the middle of the top of the upper pressing block 41 from below and locked by the floating joint nut 17. The upper pressing block 41 has holes at both ends for installing the linear bearing 42 respectively. The linear bearing 42 is installed at the upper pressing block 41 by interference fit. One end of the pressing block guide rod 43 is installed on the lower pressing block 44 through a threaded hole, and the other end of the pressing block guide rod 43 is matched with the linear bearing 42 (the pressing block guide rod 43 can slide up and down along the linear bearing 42). The spring 18 is installed on the pressing block guide rod 43 between the upper pressing block 41 and the lower pressing block 44, and one end of the spring 18 is fixed to the upper pressing block 41 and the other end is fixed to the lower pressing block 44; wherein, the axial direction of the pressing block guide rod 43 is parallel to the moving direction of the output end of the belt pressing cylinder 30.

[0054] Specifically, the pressing belt cylinder 30 drives the upper pressing block 41 to move up and down. When the upper pressing block 41 moves downward, it drives the lower pressing block 44 to move downward with the upper pressing block 41 until it contacts the cigarette package on the cigarette production line. During the further downward movement of the upper pressing block 41, the spring 18 will be compressed. The spring 18 exerts a pressing force downward on the lower pressing block 44, so that the lower pressing block 44 tightly presses the tie strap. When the pressing belt cylinder 30 drives the upper pressing block 41 to move upward, the compressed spring 18 will first slowly rebound to the natural stretched state, and the further upward movement of the upper pressing block 41 will drive the lower pressing block 44 to move upward together with the upper pressing block 41.

[0055] Optionally, the tie strap guide block I 10, the tie strap guide block II 25, and the tie strap guide block III 28 are parallel. The tie strap guide block I 10 and the tie strap guide block III 28 are at the same height. The tie strap guide block II 25 is installed above the tie strap guide block III 28 with a spacing therebetween; the bottom surface of the tie strap guide block II 25 is lower than the bottom surface of the pressing belt mechanism 3 and lower than the bottom surface of the tape cutting mechanism 7 (i.e., lower than the bottom surface of the lower pressing block 44 in the pressing device 19 and lower than the bottom surface of the blade 40 in the assembled cutting knife 11); the front end faces of the tie strap guide block I 10 and the tie strap guide block III 28 are flush. The front end face of the tie strap guide block II 25 and the front end face of the tie strap guide block I 10 are arranged front and back, and the front end face of the tie strap guide block II 25 extends out of the frame. The rear end face of the tie strap guide block II 25 is located behind the front end face of the pressing device 19. The tie strap guide block I 10, the tie strap guide block II 25, and the tie strap guide block III 28 are arranged at different positions and cooperate with each other. The tie strap guide block II 25 guides the scattered tie straps to the tie strap guide block I 10 and the tie strap guide block III 28. The tie strap guide block I 10, the tie strap guide block II 25, and the tie strap guide block III 28 can shovel the tie straps close to the tie straps, and can efficiently guide the scattered and attached tie straps. At the same time, the tie strap guide block I 10 and the tie strap guide block III 28 respectively cooperate with the pressing belt mechanism 3 and the tape cutting mechanism to realize the tape cutting action in the pressing belt state, improving the tape cutting efficiency; the whole structure of the equipment is compact and convenient for maintenance.

[0056] Optionally, the tie strap guide block I 10, the tie strap guide block II 25, and the tie strap guide block III 28 are beveled guide blocks. The bevels of the tie strap guide block I 10 and the tie strap guide block III 28 are streamlined convex arc surfaces above the front end, and the bevel of the tie strap guide block II 25 is a streamlined concave surface below the front end.

[0057] Optionally, the rear end of the tie strap guide block II 25 is connected to one end of the guiding threaded rod 9, and the other end of the guiding threaded rod 9 is fixed in the frame through the connecting block 8.

[0058] Specifically, the cable tie guiding block I 10 and the cable tie guiding block III 28 are firmly connected to the rear connecting plate 22 by the hexagon socket head cap screw III 24; the connecting block 8 is designed in an L shape. The L-shaped connecting block 8 is connected to the front connecting plate 1 by bolts and fixed by the cable tie guiding mechanism nut 6. The front end below of the cable tie guiding block II 25 is streamlined, and there is a threaded hole at the rear end connected to one end of the guiding threaded rod 9. The cable tie guiding block II 25 is connected to the connecting block 8 through the guiding threaded rod 9. The cable tie guiding block II 25 is used to guide the cable tie to fall onto the cable tie guiding block I 10 and the cable tie guiding block III 28, and the cable tie guiding block I 10 and the cable tie guiding block III 28 are used to shovel the cable tie.

[0059] Optionally, the assembled cutter 11 is guided through the cutter guiding groove 20 within the frame.

[0060] Optionally, the assembled cutter 11 includes a left cutter clamping block 34, a right cutter clamping block 35, an upper pressure plate 36, hexagon socket head cap screws II 37, set screws 39, and a blade 40; among them, the left cutter clamping block 34 and the right cutter clamping block 35 are firmly connected by the clamping block bolts 38. There is a tool mounting gap at the lower end of the left cutter clamping block 34, and the blade 40 loaded into the tool mounting gap is clamped by the set screw 39, which is also convenient for replacement. The two diagonals of the upper pressure plate 36 are respectively connected to the upper parts of the left cutter clamping block 34 and the right cutter clamping block 35 by the hexagon socket head cap screws II 37. There is a threaded hole at the middle position of the upper pressure plate 36 connected to the tape cutting cylinder 12 for cutting the binding tape.

[0061] A method for cutting the tape of a packing box tape cutting device is carried out by using a packing box tape cutting device including a detection mechanism, and specifically includes:

[0062] S1. Driven by the cylinder 26, the limit switch 27 moves downward until it contacts the packing box and then the limit switch 27 is retracted to obtain the descending distance of the limit switch 27; the descending distance of the limit switch 27 is the distance from the initial position of the limit switch 27 to the position where it contacts the packing box.

[0063] S2. The robot controls the tape cutting device to descend vertically until the bottom surfaces of the cable tie guiding block I 10 and the cable tie guiding block III 28 contact the packing box; among them, the descending distance of the tape cutting device is the descending distance of the limit switch 27 - the vertical distance a; the vertical distance a is the vertical distance between the bottom end of the limit switch 27 and the bottom surface of the cable tie guiding block III 28 / the cable tie guiding block I 10.

[0064] S3. The robot drives the tape cutting device to move along the cutting direction. The cable tie guiding block II 25 is used to guide the cable tie of the packing box to fall onto the cable tie guiding block I 10 and the cable tie guiding block III 28, and the cable tie guiding block I 10 and the cable tie guiding block III 28 in the tape cutting device are used to lift the cable tie.

[0065] S4. The robot drives the tape cutting device to continue moving along the cutting direction, so that the tapes on the tape guide block I 10 and the tape guide block III 28 move from the front end to the rear end of the tape guide block.

[0066] S5. The tape pressing cylinder 30 drives the pressing device 19 to move downward until it presses the tape on the tape guide block I 10.

[0067] S6. According to the set time, the robot drives the tape cutting cylinder 12 to control the assembled cutter 11 to move downward to cut the tape on the tape guide block III 28.

[0068] Optionally, it also includes recycling: when cutting the tape, the tape pressing cylinder 30 maintains the tape pressing state, and the robot drives the tape cutting device to move in the reverse direction to complete the tape pulling action.

[0069] The working principle of the present invention is as follows: taking the tape cutting device of the present invention for the tape treatment of cigarette cartons in the cigarette production line as an example, the tape cutting device is connected to the end effector of the industrial robot in a threaded connection form, and the robot drives the tape cutting device to work. Under the flexible drive of the industrial robot, the actions of finding the tape, pressing the tape, cutting the tape, and recycling the tape are realized, and further the cigarette carton is unpacked to facilitate the completion of subsequent processes. The working principle of the tape cutting device and the external device industrial robot for tape cutting is as follows:

[0070] 1. After the carton cigarette package is positioned by the roller path mechanism, the robot sends a signal to the vision system for image acquisition.

[0071] 2. The vision system locates the position of the tape and transmits the specific coordinate information to the robot.

[0072] 3. The robot moves the tape cutting device along the cutting direction to the tape.

[0073] 4. The robot sends a signal to the cylinder 26 that controls the limit switch 27 to lower the limit switch 27.

[0074] 5. When the limit switch 27 touches the packaging box, it sends a signal to the robot, and the robot stops moving.

[0075] 6. The robot sends a signal to the cylinder that controls the limit switch 27 to retract the limit switch 27, and lowers the tape cutting device vertically until the bottom surfaces of the tape guide block I 10 and the tape guide block III 28 contact the packaging box; among them, the descending distance is the descending distance of the limit switch from the initial position to contacting the carton - the vertical distance a.

[0076] 7. The robot continues to move along the shearing direction. The cable tie guiding block II 25 can be used to guide the cable tie of the box body to fall onto the cable tie guiding block I 10 and the cable tie guiding block III 28. The cable tie guiding block I 10 and the cable tie guiding block III 28 in the tape cutting device are used to lift the cable tie. Additionally, further, a sensor can be installed on the cable tie guiding block I 10 to detect whether the cable tie passes by and transmit a signal to the robot. If the robot does not receive the signal, the robot moves the tape cutting device to other cable ties or stops.

[0077] 8. The robot continues to move the tape cutting device, so that the cable ties on the cable tie guiding block I 10 and the cable tie guiding block III 28 move from the front end to the rear end of the cable tie guiding block.

[0078] 9. The robot sends a signal to the tape pressing cylinder 30, and the pressing device 19 moves downward to press the cable tie.

[0079] 10. According to the set time (such as after 0.5 s), the robot sends a signal to the tape cutting cylinder 12 that controls the cutter, and the assembled cutter 11 moves downward to cut the first cable tie.

[0080] 11. When cutting the first cable tie, the tape pressing cylinder 30 maintains the tape pressing state, and the robot drives the tape cutting device to move in the reverse direction to complete the tape pulling action.

[0081] 12. After the tape pulling action is completed, the robot drives the cutting device to move above the cable tie recycling basket. The tape pressing cylinder 30 relaxes, and the cable tie falls to complete the cutting and recycling of one cable tie, and then returns to the initial position to start repeating the above steps to process other cable ties or stop.

[0082] The specific embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A carton tape cutting device, characterized in that: It includes a frame, a tape pressing mechanism (3), a tie-tape guiding mechanism (5), and a tape cutting mechanism (7); the packing box tape cutting device further includes a detection mechanism (4); The frame is used to install the tape pressing mechanism (3), the tie-tape guiding mechanism (5), and the tape cutting mechanism (7); The tape pressing mechanism (3) includes a pressing device (19) and a tape pressing cylinder (30); wherein, the output end of the tape pressing cylinder (30) fixed inside the frame is connected to one end of the pressing device (19), and the other end of the pressing device (19) is a free end; the pressing device (19) is driven by the tape pressing cylinder (30) to move up and down in the vertical direction; The tie-tape guiding mechanism (5) includes a tie-tape guiding block I (10), a tie-tape guiding block II (25), and a tie-tape guiding block III (28); wherein, the front ends of the tie-tape guiding block I (10), the tie-tape guiding block II (25), and the tie-tape guiding block III (28) are free ends, the rear ends of the tie-tape guiding block I (10), the tie-tape guiding block II (25), and the tie-tape guiding block III (28) are fixed to the inner side of the frame, a notch is opened in the upper part of the tie-tape guiding block I (10) to cooperate with the assembled cutter (11) in the tape cutting mechanism (7), and the tie-tape guiding block III (28) cooperates with the pressing device (19) in the tape pressing mechanism (3); The tape cutting mechanism (7) includes an assembled cutter (11) and a tape cutting cylinder (12); wherein, the output end of the tape cutting cylinder (12) fixed inside the frame is connected to one end of the assembled cutter (11), and the other end of the assembled cutter (11) is a cutting end; The tie-tape guiding block I (10), the tie-tape guiding block II (25), and the tie-tape guiding block III (28) are parallel, the tie-tape guiding block I (10) and the tie-tape guiding block III (28) are at the same height, the tie-tape guiding block II (25) is installed above the tie-tape guiding block III (28) and there is a spacing between them; the bottom surface of the tie-tape guiding block II (25) is lower than the bottom surface of the tape pressing mechanism (3) and lower than the bottom surface of the tape cutting mechanism (7); the front end faces of the tie-tape guiding block I (10) and the tie-tape guiding block III (28) are flush, the front end face of the tie-tape guiding block II (25), the front end face of the tie-tape guiding block I (10) are arranged front and back and the front end face of the tie-tape guiding block II (25) extends out of the frame, and the rear end face of the tie-tape guiding block II (25) is located behind the front end face of the pressing device (19); The detection mechanism (4) includes a cylinder (26) and a limit switch (27); wherein, the output end of the cylinder (26) fixed outside the frame is connected to the limit switch (27); there is a distance between the bottom end of the limit switch (27) and the bottom surface of the tie-tape guiding block III (28) / the tie-tape guiding block I (10), and the vertical distance is a; The tape cutting method of the packing box tape cutting device specifically includes: S1. Driven by the cylinder (26), the limit switch (27) is driven to move downward until it contacts the packing box and then the limit switch (27) is retracted, and the descending distance of the limit switch (27) is obtained; the descending distance of the limit switch (27) is the distance from the initial position of the limit switch (27) to the contact with the packing box; S2. The robot controls the tape cutting device to descend vertically until it contacts the bottom surface of the cable tie guide block I (10) and the cable tie guide block III (28) with the packaging box. Among them, the descending distance of the tape cutting device is the descending distance of the limit switch (27) - the vertical distance a; the vertical distance a is the vertical distance between the bottom end of the limit switch (27) and the bottom surface of the cable tie guide block III (28) / the cable tie guide block I (10). S3. The robot drives the tape cutting device to move along the cutting direction. The cable tie guide block II (25) is used to guide the cable tie of the packaging box to fall onto the cable tie guide block I (10) and the cable tie guide block III (28). The cable tie guide block I (10) and the cable tie guide block III (28) in the tape cutting device are used to pick up the cable tie. S4. The robot drives the tape cutting device to continue moving along the cutting direction, so that the cable tie on the cable tie guide block I (10) and the cable tie guide block III (28) moves from the front end to the rear end of the cable tie guide block. S5. The pressing belt cylinder (30) drives the pressing device (19) to move downward until it presses the cable tie on the cable tie guide block III (28). S6. According to the set time, the robot drives the tape cutting cylinder (12) to control the assembled cutter (11) to move downward to cut the cable tie on the cable tie guide block I (10).

2. The carton tape cutting device according to claim 1, characterized in that: The frame includes a front side connecting plate (1), a top plate (2), a left side connecting plate (21), a rear side connecting plate (22), and a right side connecting plate (23). Among them, one end of the overall formed by the front side connecting plate (1), the left side connecting plate (21), the rear side connecting plate (22), and the right side connecting plate (23) connected in sequence at the bottom of the top plate (2) is the closed end, and the other end of the overall is the open end; the bottommost surface of the frame is higher than the top surface of the cable tie guide block I (10) / the cable tie guide block III (28).

3. The carton tape cutting device according to claim 1, characterized in that: The pressing device (19) is a symmetric mechanism, including a floating joint (16), a spring (18), an upper pressing block (41), a linear bearing (42), a pressing block guide rod (43), and a lower pressing block (44). Among them, the floating joint (16) is connected to the output end of the pressing belt cylinder (30) from above, the floating joint (16) is connected to the upper pressing block (41) from below, the upper pressing block (41) is provided with holes at both ends for installing the linear bearing (42) respectively, one end of the pressing block guide rod (43) is installed on the lower pressing block (44) through a threaded hole, the other end of the pressing block guide rod (43) is matched with the linear bearing (42), the spring (18) is installed on the pressing block guide rod (43) between the upper pressing block (41) and the lower pressing block (44), and one end of the spring (18) is fixed to the upper pressing block (41) and the other end is fixed to the lower pressing block (44); among them, the axial direction of the pressing block guide rod (43) is parallel to the movement direction of the output end of the pressing belt cylinder (30).

4. The carton tape cutting device according to claim 1, characterized in that: The cable tie guide block I (10), the cable tie guide block II (25), and the cable tie guide block III (28) are bevel guide blocks. The bevels of the cable tie guide block I (10) and the cable tie guide block III (28) are streamlined convex arc surfaces above the front end, and the bevel of the cable tie guide block II (25) is streamlined concave below the front end.

5. The packing box tape cutting device according to claim 1, wherein: The rear end of the cable tie guiding block II (25) is connected to one end of the guiding threaded rod (9), and the other end of the guiding threaded rod (9) is fixed in the frame through the connecting block (8).

6. The carton tape cutting device according to claim 1, characterized in that: The assembled cutter (11) includes a left cutter clamping block (34), a right cutter clamping block (35), an upper pressing plate (36), an internal hexagonal screw II (37), a set screw (39), and a blade (40); among them, the left cutter clamping block (34) is firmly connected to the right cutter clamping block (35), a tool loading gap is left at the lower end of the left cutter clamping block (34), and the blade (40) loaded in the tool loading gap is clamped by the set screw (39), and the two diagonals of the upper pressing plate (36) are respectively connected to the upper parts of the left cutter clamping block (34) and the right cutter clamping block (35) through the internal hexagonal screw II (37), and the middle position of the upper pressing plate (36) is connected to the tape cutting cylinder (12).

7. The carton tape cutting device according to claim 1, characterized in that: The tape cutting method further includes recycling: when cutting the cable tie, the tape pressing cylinder (30) maintains the tape pressing state, and the robot drives the tape cutting device to move in the reverse direction to complete the tape pulling action.

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