Automatic boxing production line for strip-shaped soft package materials

Abstract

The invention provides an automatic boxing production line for strip-shaped soft package materials. The automatic boxing production line comprises a first conveyor, a boxing mechanism, a second conveyor, a box moving mechanism, a third conveyor and a box sealing machine. The first conveyor is used for conveying soft package materials arranged in the first direction, the second conveyor is used for conveying packaging boxes in the second direction perpendicular to the first direction, and the third conveyor is used for conveying the packaging boxes to the box sealing machine in the third direction. The boxing mechanism is used for sequentially grabbing the soft package materials into packaging boxes aligned with the first conveyor in the first direction. The box moving mechanism is used for transferring the packaging box filled with the soft packaging materials from the second conveyor to the third conveyor, and the length direction of the packaging box is consistent with the third direction when the packaging box is transferred to the third conveyor. According to the automatic boxing production line for the strip-shaped soft packaging materials, the equipment cost, the maintenance cost and the automation control difficulty of the automatic boxing production line for the strip-shaped soft packaging materials can be reduced, and the structural compactness is improved so that occupied space can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic box packing of soft packaging materials, and in particular relates to an automatic box packing production line for strip-shaped soft packaging materials. Background Art

[0002] In the construction and automotive industries, sealants such as silane-modified polyether adhesives are usually used to waterproof and seal assembly gaps. To facilitate later use, this sealant is usually packaged in the form of round strips. After the soft packaging is completed, the soft packaging materials are packed according to a certain quantity standard.

[0003] At present, with the rapid development of production automation, industrial robots are basically deployed on the conveyor line to replace manual grabbing of soft packaging materials for automatic boxing. The disadvantages of this automation solution are that industrial robots are expensive and have high maintenance costs. On the other hand, industrial robots occupy a large space and are difficult to coordinate and control with the conveyor line. Summary of the invention

[0004] The embodiment of the present invention provides an automatic boxing production line for strip-shaped soft packaging materials, aiming to reduce the equipment cost, maintenance cost and automation control difficulty of the automatic boxing production line for soft packaging materials, and improve the compactness of the structure to reduce space occupation.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide an automatic boxing production line for strip soft packaging materials, including a first conveyor, a boxing mechanism, a second conveyor, a box shifting mechanism, a third conveyor, and a box sealing machine; the first conveyor is used to convey the soft packaging materials along a first direction, the second conveyor is used to convey the packaging boxes along a second direction perpendicular to the first direction, and the third conveyor is used to convey the packaging boxes along a third direction, and the third direction forms an angle with the second direction; the boxing mechanism is located between the first conveyor and the second conveyor, and is used to grab the soft packaging materials in sequence into the packaging boxes aligned with the first conveyor along the first direction; the box shifting mechanism is located between the second conveyor and the third conveyor, and is used to transfer the packaging boxes filled with soft packaging materials from the second conveyor to the third conveyor; the box sealing machine is connected to the end of the third conveyor away from the second conveyor; wherein, the process of transferring the packaging boxes by the box shifting mechanism includes revolution and rotation, and the revolution and rotation together cause the length direction of the packaging box to be converted from parallel to the first direction to parallel to the third direction.

[0006] In one possible implementation, the box loading mechanism includes a gantry, a grabbing assembly and a linear drive; the gantry is fixedly connected to the end of the first conveyor close to the second conveyor; the grabbing assembly is slidably connected to the gantry along a first direction; the linear drive is arranged on the gantry and the output end is connected to the grabbing assembly; wherein the grabbing assembly is used to move to the top of the first conveyor driven by the linear drive to grab the soft package material, and to move to the top of the packaging box driven by the linear drive to release the soft package material.

[0007] In some embodiments, the grabbing assembly includes a slide, a telescopic drive, a grabbing frame, and two opening and closing hand grips; the slide is slidably connected to the gantry and connected to the output end of the linear drive; the telescopic drive is fixedly connected to the slide and has an output end that can be telescoped in a vertical direction; the grabbing frame is connected to the slide or the telescopic drive, and the grabbing frame has two downwardly extending connecting arms spaced apart along a first direction; the two opening and closing hand grips are respectively connected to one of the connecting arms, and both opening and closing hand grips are connected to the output end of the telescopic drive, and are used to open and close synchronously under the drive of the telescopic drive to grab or release the soft package material.

[0008] Exemplarily, the output end of the telescopic drive member is connected to a cross bar extending along a first direction; the opening and closing hand grip includes two claw arms and two claw bodies; wherein the two claw bodies are symmetrically distributed with the connecting arm as the center and the middle parts of both are hinged to the connecting arm, the lower ends of the two claw bodies are provided with claw grooves matching the circumferential shape of the soft package material, the upper ends of the two claw bodies are rotatably connected to the lower end of one of the claw arms respectively, and the upper ends of the two claw arms are rotatably connected to the end of the cross bar; an elastic traction member is connected between the upper ends of the two claw arms or the two claw bodies.

[0009] In one possible implementation, the box moving mechanism includes a bracket, a rotating drive member, a planetary transmission assembly, and a box grabbing suction cup; the bracket is fixedly supported on the corner area formed by the second conveyor and the third conveyor; the rotating drive member is vertically fixed to the bracket; the planetary transmission assembly is arranged on the bracket, the power input end of the planetary transmission assembly is transmission-connected with the output end of the rotating drive member, and the power output end of the planetary transmission assembly has a horizontal swinging revolution degree of freedom and a horizontal rotation degree of freedom; the box grabbing suction cup is connected to the power output end of the planetary transmission assembly for adsorbing the packaging box.

[0010] In some embodiments, the planetary transmission assembly includes a fixed sprocket, a transmission frame and a planetary sprocket; the fixed sprocket is fixedly connected to the bracket; the transmission frame is rotatably connected to the axle of the fixed sprocket, and is transmission-connected to the output end of the rotating drive member, and the transmission frame swings around the axle of the fixed sprocket driven by the rotating drive member; the planetary sprocket is rotatably connected to the transmission frame and is transmission-connected to the fixed sprocket via a chain, and a box grabbing suction cup is connected to the axle of the planetary sprocket; wherein, the planetary sprocket is used to revolve around the fixed sprocket driven by the transmission frame, and is also used to rotate driven by the chain.

[0011] Exemplarily, the gear ratio of the fixed sprocket and the planetary sprocket is 90°:N, wherein N is the supplementary angle of the angle between the second direction and the third direction, and 0°<N<180°.

[0012] For example, the transmission frame includes a first rod body and a second rod body connected at an angle, the connecting part of the first rod body and the second rod body is rotatably sleeved on the axle of the fixed sprocket, the end of the first rod body away from the fixed sprocket is rotatably sleeved on the axle of the planetary sprocket, the end of the second rod body away from the fixed sprocket is rotatably connected to a rocker, the output end of the rotating drive member is rotatably connected to a crank, and the crank is rotatably connected to the rocker; wherein, when the crank rotates one circle, the rocker drives the second rod body to swing back and forth at an angle of N.

[0013] In some embodiments, a telescopic stopper is provided on the second conveyor, and the telescopic stopper has an interception state in which it is extended to block the packaging box. The interception state is used to make the packaging box stay in a position aligned with the first conveyor along the first direction. The telescopic stopper also has a release state in which it is retracted to avoid the packaging box.

[0014] In some embodiments, the automatic packaging production line for strip-shaped soft packaging materials also includes a controller, and a first sensor, a counter, a second sensor, and a third sensor electrically connected to the controller, respectively; wherein the first sensor is used to detect the running position of the soft packaging material on the first conveyor, the counter is used to detect the number of packing actions of the packing mechanism, the second sensor is used to detect the running position of the packaging box on the second conveyor, and the third sensor is used to detect whether the box transfer mechanism transfers the packaging box to the third conveyor.

[0015] The beneficial effects of the automatic boxing production line for strip soft packaging materials provided by the present invention are as follows: compared with the prior art, in the automatic boxing production line for strip soft packaging materials of the present invention, the first conveyor and the second conveyor are arranged vertically, so that the boxing mechanism only needs to make a linear motion to complete the boxing after grabbing the soft packaging materials, which can reduce the difficulty of controlling the boxing action; the third conveyor and the second conveyor can be arranged at any angle with the second conveyor according to the on-site space, and the boxing mechanism is arranged in the connecting area between the first conveyor and the second conveyor, and the box moving mechanism is arranged in the connecting area between the second conveyor and the third conveyor. Compared with the prior art structure in which multiple conveyors are linearly docked and distributed and industrial robots are arranged on the sides of the conveyors, The structural layout is more flexible and compact, and occupies less space; on this basis, the use of a packing mechanism and a box moving mechanism to replace two industrial robots can greatly reduce equipment costs and maintenance costs, and can reduce the difficulty and cost of automated control compared to industrial robots; in addition, the box moving mechanism can use the revolution and rotation motion to adjust the length direction of the box to a state consistent with the third direction during the process of transferring the box from the second conveyor to the third conveyor, so that the sealing machine can wrap the box with at least two cable ties in the length direction, thereby saving the step of adjusting the sealing angle of the box on the third conveyor, which helps to reduce the control difficulty and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of an automatic boxing production line for strip-shaped soft packaging materials provided by an embodiment of the present invention; Figure 2 A schematic diagram of the three-dimensional structure of a packing mechanism used in an embodiment of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the box transfer mechanism used in the embodiment of the present invention when grabbing a packaging box from the second conveyor; Figure 4 It is a three-dimensional structural schematic diagram of the process of transferring a packaging box to the third conveyor by the box transfer mechanism adopted in the embodiment of the present invention; Figure 5 This is a schematic diagram of the movement principle of the box moving mechanism adopted in an embodiment of the present invention.

[0017] In the figure: 10, first conveyor; 20, packing mechanism; 21, gantry; 211, slide rail; 22, grab assembly; 221, slide seat; 222, telescopic drive member; 2221, cross bar; 223, material grabbing frame; 224, opening and closing hand grab; 2241, claw arm; 2242, claw body; 2243, claw groove; 2244, elastic traction member; 23, linear drive member; 30, second conveyor; 31, telescopic stopper; 32, tray; 40, box transfer mechanism; 41, bracket; 4 2. Rotating drive member; 421. Crank; 43. Planetary transmission assembly; 431. Fixed sprocket; 4311. Fixed shaft; 432. Transmission frame; 4321. First rod body; 4322. Second rod body; 433. Planetary sprocket; 4331. Movable shaft; 434. Chain; 435. Rocker; 44. Carton grabbing suction cup; 50. Third conveyor; 60. Carton sealing machine; 70. Counter; 71. First sensor; 72. Second sensor; 73. Third sensor; 80. Soft packaging material; 90. Packing box; 91. Cable tie. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] It should be noted that when an element is referred to as being "disposed on" or "connected to" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meanings of "multiple" and "several" are two or more, unless otherwise clearly and specifically defined.

[0020] Please also read Figures 1 to 5The automatic boxing production line for strip-shaped soft packaging materials provided by the present invention is now described. The automatic boxing production line for strip-shaped soft packaging materials comprises a first conveyor 10, a boxing mechanism 20, a second conveyor 30, a box-shifting mechanism 40, a third conveyor 50, and a box-sealing machine 60; the first conveyor 10 is used to convey the soft packaging material 80 along a first direction, the second conveyor 30 is used to convey the packaging box 90 along a second direction perpendicular to the first direction, and the third conveyor 50 is used to convey the packaging box 90 along a third direction, and the third direction forms an angle with the second direction; the boxing mechanism 20 is located between the first conveyor 10 and the second conveyor 30, and is used to sequentially convey the soft packaging material 80 to the third direction. Grab the packaging box 90 aligned with the first conveyor 10 along the first direction; the box transfer mechanism 40 is located between the second conveyor 30 and the third conveyor 50, and is used to transfer the packaging box 90 filled with soft packaging materials 80 from the second conveyor 30 to the third conveyor 50; the carton sealing machine 60 is connected to the end of the third conveyor 50 away from the second conveyor 30; wherein, the process of transferring the packaging box 90 by the box transfer mechanism 40 includes revolution and rotation, and the revolution and rotation together cause the length direction of the packaging box 90 to be converted from parallel to the first direction to parallel to the third direction.

[0021] It should be noted that the above-mentioned first conveyor 10, second conveyor 30, and third conveyor 50 can all be belt conveyors or roller conveyors; the end of the first conveyor 10 away from the second conveyor 30 can be connected to the filling, cutting and punching process of the soft packaging material 80 (cutting and sealing the soft packaging bags after alternately filling them), so as to realize that the soft packaging material 80 is automatically conveyed to the first conveyor 10 for packing after the filling is completed. The above-mentioned carton sealing machine 60 is a carton sealing device commonly used in the packaging industry. After the packaging box 90 filled with the required number of soft packaging materials 80 moves to the carton sealing machine 60 on the third conveyor 50, the carton sealing machine 60 is used to automatically tighten the cable ties 91 on the packaging box 90. Generally, at least two cable ties 91 are tightened at intervals in the length direction of the packaging box 90 (because the soft packaging material 80 is long and strip-shaped, the length direction of the soft packaging material 80 after being loaded into the packaging box 90 is consistent with the length direction of the packaging box 90). Therefore, in this embodiment, the packaging box 90 is required to keep its length direction consistent with the third direction on the third conveyor 50 when passing through the carton sealing machine 60.

[0022] It should be explained that, in this embodiment, the end of the second conveyor 30 close to the first conveyor 10 can be connected to an automatic box loading device, or an empty packaging box 90 can be manually placed on the second conveyor 30. When the packaging box 90 moves to a position aligned with the first conveyor 10 on the second conveyor 30, the second conveyor 30 stops running. At this time, the soft packaging materials 80 that move to the target position on the first conveyor 10 are grabbed and transferred to the packaging box 90 through the box loading mechanism 20. After the target number of soft packaging materials 80 are loaded and taken, the second conveyor 30 continues to run and stops after reaching the end close to the third conveyor 50. Then the box transfer mechanism 40 grabs the packaging box 90 from the second conveyor 30 and transfers the packaging box 90 to the third conveyor 50.

[0023] During the box transfer process, since there is an angle between the conveying directions of the second conveyor 30 and the third conveyor 50, and the placement angle of the packaging box 90 on the second conveyor 30 is that its length direction is consistent with the first direction (it is convenient for the packing mechanism 20 to grab the soft packaging material 80 and then move it linearly to the top of the packaging box 90 for release to achieve packaging), and at the same time, in order to facilitate the carton sealing machine 60 to tie the cable tie 91 on the packaging box 90 (the carton sealing machine 60 has a cable tie 91 station, and the packaging box 90 maintains an angle direction consistent with the first direction in the length direction. The carton sealing machine 60 can complete the tying of two cable ties 91), the box transfer mechanism 40 uses its revolution and rotation motion to rotate the packaging box 90 at the same time while causing the packaging box 90 to produce a horizontal displacement in the process of transferring the packaging box 90, so that the packaging box 90 forms a state in which the length direction is consistent with the third direction on the third conveyor 50.

[0024] Compared with the prior art, the automatic boxing production line for strip soft packaging materials provided in this embodiment has a first conveyor 10 and a second conveyor 30 arranged vertically, so that the boxing mechanism 20 only needs to make a linear motion to complete the boxing after grabbing the soft packaging material 80. The second conveyor 30 and the third conveyor 50 can be arranged at any angle according to the actual space on site, and the boxing mechanism 20 is arranged in the connecting area between the first conveyor 10 and the second conveyor 30, and the box moving mechanism 40 is arranged in the connecting area between the second conveyor 30 and the third conveyor 50. Compared with the existing structural form in which multiple conveyors are linearly connected and distributed and industrial robots are arranged on the sides of the conveyors, the layout is more flexible and compact, and occupies less space; in this On this basis, the use of a packing mechanism 20 and a box shifting mechanism 40 to replace two industrial robots can greatly reduce equipment costs and maintenance costs, and can reduce the difficulty and cost of automated control compared to industrial robots; in addition, during the process of the box shifting mechanism 40 transferring the packaging box 90 from the second conveyor 30 to the third conveyor 50, the length direction of the packaging box 90 can be adjusted to a state consistent with the third direction by using the revolution and rotation motions, thereby facilitating the sealing machine 60 to wrap the packaging box 90 with at least two cable ties 91 in the length direction, thereby saving the step of adjusting the sealing angle of the packaging box 90 on the third conveyor 50, which helps to reduce the control difficulty and improve work efficiency.

[0025] In some embodiments, see Figure 2 The packing mechanism 20 includes a gantry 21, a grabbing assembly 22 and a linear drive 23; the gantry 21 is fixedly connected to the end of the first conveyor 10 close to the second conveyor 30; the grabbing assembly 22 is slidably connected to the gantry 21 along a first direction; the linear drive 23 is arranged on the gantry 21 and the output end is connected to the grabbing assembly 22; wherein, the grabbing assembly 22 is used to move to the top of the first conveyor 10 driven by the linear drive 23 to grab the soft package material 80, and move to the top of the packaging box 90 driven by the linear drive 23 to release the soft package material 80.

[0026] The linear drive component 23 can specifically be a telescopic cylinder or an electric telescopic rod. The linear drive component 23 drives the grabbing component 22 to move to the top of the first conveyor 10 to grab the soft package material 80 at the target position of the running value, and then moves to the top of the packaging box 90 placed on the second conveyor 30. Then the grabbing component 22 releases the soft package material 80, allowing the soft package material 80 to fall freely into the packaging box 90. This can be repeated the target number of times to fill the packaging box 90 with the target amount of soft package material 80. The structure is simple and compact, the processing and manufacturing and subsequent maintenance costs are low, and the control logic is simple and the stability is high.

[0027] As a specific implementation of the grabbing component 22, please refer to Figure 2The grabbing assembly 22 includes a slide 221, a telescopic drive member 222, a grabbing frame 223, and two opening and closing hand grips 224; the slide 221 is slidably connected to the gantry 21 and is connected to the output end of the linear drive member 23; the telescopic drive member 222 is fixedly connected to the slide 221 and has an output end that is telescopic in the vertical direction; the grabbing frame 223 is connected to the slide 221 or the telescopic drive member 222, and the grabbing frame 223 has two downwardly extending connecting arms spaced apart along the first direction; the two opening and closing hand grips 224 are respectively connected to one of the connecting arms, and the two opening and closing hand grips 224 are both connected to the output end of the telescopic drive member 222, and are used to open and close synchronously under the drive of the telescopic drive member 222 to grab or release the soft packaging material 80.

[0028] The gantry 21 has a slide rail 211 extending along a first direction, and a slide seat 221 is slidably connected to the slide rail 211. When the linear drive member 23 drives the slide seat 221 to move above the first conveyor 10, the telescopic drive member 222, such as the output end of the telescopic cylinder, drives the two opening and closing hand grips 224 to open, and then when it moves to align with the soft package material 80 on the first conveyor 10, the telescopic drive member 222 drives the two opening and closing hand grips 224 to close and grab the soft package material 80, and then the linear drive member 23 drives the slide seat 221 to move in the opposite direction to just above the packaging box 90 placed on the second conveyor 30, and then the telescopic drive member 222 drives the two opening and closing hand grips 224 to open at the same time again, thereby releasing the soft package material 80 so that the soft package material 80 can fall freely into the packaging box 90. Here, two opening and closing hand grips 224 arranged at intervals along the first direction are used to grab the soft packaging material 80, which can improve the stability of grabbing the material. At the same time, the telescopic drive member 222 can drive the two opening and closing hand grips 224 to move synchronously, thereby ensuring that the two opening and closing hand grips 224 open at the same time when the soft packaging material 80 is released, thereby avoiding the different opening times of the two opening and closing hand grips 224, which causes the soft packaging material 80 to tilt up and down and fall, thereby affecting the stability of entering the packaging box 90.

[0029] For example, see Figure 2 The output end of the telescopic driving member 222 is connected to a cross bar 2221, which extends along a first direction; the opening and closing hand grip 224 includes two claw arms 2241 and two claw bodies 2242; wherein the two claw bodies 2242 are symmetrically distributed with the connecting arm as the center and the middle parts of both are hinged to the connecting arm, the lower ends of the two claw bodies 2242 are provided with claw grooves 2243 matching the circumferential shape of the soft packing material 80, the upper ends of the two claw bodies 2242 are respectively rotatably connected to the lower end of one of the claw arms 2241, and the upper ends of the two claw arms 2241 are rotatably connected to the end of the cross bar 2221; an elastic traction member 2244 is connected between the upper ends of the two claw arms 2241 or the two claw bodies 2242.

[0030] The two claw arms 2241 form an eight-shaped structure that is narrow at the top and wide at the bottom, and the two claw bodies 2242 can be bent in the direction away from each other to form an inverted eight-shaped structure that is wide at the top and narrow at the bottom. As a result, when the telescopic driving member 222 drives the cross bar 2221 to rise, the lower ends of the two claw arms 2241 and the upper ends of the two claw bodies 2242 are close to each other, so that the lower ends of the two claw bodies 2242 are separated from each other to complete the action of opening and releasing the soft bag material 80. Conversely, when the telescopic driving member 222 drives the cross bar 2221 to move downward, the lower ends of the two claw bodies 2242 can be close to each other The action of closing and grasping the soft package material 80 is completed; the lower ends of the two claw bodies 2242 are relatively set to arc-shaped claw grooves 2243, so that the two claw bodies 2242 can be close to each other and use the two claw grooves 2243 to form an embrace action on the soft package material 80, thereby improving the grasping stability and preventing the soft package material 80 from falling during the packing process; in addition, by connecting an elastic traction member 2244 such as a tension spring between the two claw arms 2241 or the upper ends of the two claw bodies 2242, it is helpful to eliminate the movement gap and improve the opening and closing action accuracy of the two claw bodies 2242 driven by the telescopic driving member 222. In order to protect the soft package material 80, a rubber gasket can be set on the groove wall of the claw groove 2243.

[0031] As a specific implementation of the above-mentioned box transfer mechanism 40, please refer to Figures 1 to 5 The box moving mechanism 40 includes a bracket 41, a rotating drive member 42, a planetary transmission assembly 43, and a box grabbing suction cup 44; the bracket 41 is fixedly supported on the corner area formed by the second conveyor 30 and the third conveyor 50; the rotating drive member 42 is vertically fixed to the bracket 41; the planetary transmission assembly 43 is arranged on the bracket 41, and the power input end of the planetary transmission assembly 43 is transmission-connected with the output end of the rotating drive member 42, and the power output end of the planetary transmission assembly 43 has a horizontal swing revolution degree of freedom and a horizontal rotation degree of freedom of rotation; the box grabbing suction cup 44 is connected to the power output end of the planetary transmission assembly 43, and is used to adsorb the packaging box 90.

[0032] The bracket 41 can be fixedly supported on the ground, or can be fixedly connected to the frame of the second conveyor 30 or the third conveyor 50. Here, it is preferred to use the bracket 41 to independently fix and support the ground in the corner area formed by the second conveyor 30 and the third conveyor 50. On the one hand, it can improve the compactness of the overall layout, and on the other hand, it is convenient to flexibly adjust the position; the rotating drive member 42 can specifically be a servo motor or a stepper motor, and its output end is connected to the power input end of the planetary transmission component 43 through a transmission member such as a connecting rod mechanism. A rotation angle difference can be formed between the power input end and the power output end of the planetary transmission component 43, thereby realizing planetary transmission when the rotating drive member 42 rotates one circle The power output end of the component 43 obtains the rotational motion. In addition, the planetary transmission component 43 itself has the revolution. It only needs to select the transmission ratio of the planetary transmission component 43 according to the angle between the second conveyor 30 and the third conveyor 50 to make the packaging box 90 reach the third conveyor 50 in a state where the length direction is consistent with the third direction under the combined action of the revolution and rotational motion, so that the packaging box 90 passes through the carton sealing machine 60 with its length direction as the forward direction, which is convenient for the carton sealing machine 60 to wrap two tie bands 91 at intervals along the length direction of the packaging box 90, eliminating the step of adjusting the angle of the packaging box 90 before entering the carton sealing machine 60, thereby reducing the control difficulty and improving the sealing efficiency. .

[0033] Optionally, see Figures 3 to 5 The planetary transmission assembly 43 includes a fixed sprocket 431, a transmission frame 432 and a planetary sprocket 433; the fixed sprocket 431 is fixedly connected to the bracket 41; the transmission frame 432 is rotatably connected to the axle of the fixed sprocket 431, and is transmission-connected to the output end of the rotating drive member 42, and the transmission frame 432 swings around the axle of the fixed sprocket 431 driven by the rotating drive member 42; the planetary sprocket 433 is rotatably connected to the transmission frame 432 and is transmission-connected to the fixed sprocket 431 through a chain 434, and the axle of the planetary sprocket 433 is connected to the box grabbing suction cup 44; wherein the planetary sprocket 433 is used for performing a revolving motion around the fixed sprocket 431 driven by the transmission frame 432, and is also used for performing a self-rotating motion driven by the chain 434.

[0034] The wheel axle of the fixed sprocket 431 is a fixed shaft 4311 fixedly connected to the bracket 41, and the planetary sprocket 433 is connected to the fixed shaft 4311 through the transmission frame 432. Specifically, the wheel axle of the planetary sprocket 433 is a movable shaft 4331 rotatably connected to the transmission frame 432. The movable shaft 4331 and the planetary sprocket 433 are connected by a key to constrain the relative rotational freedom of the two. When the rotating driving member 42 drives the transmission frame 432 to swing, the planetary sprocket 433 revolves around the fixed shaft 4311. At the same time, since there is a chain 434 transmission between the planetary sprocket 433 and the fixed sprocket 431, , so the planetary sprocket 433 will rotate while revolving. For the box grabbing suction cup 44 connected to the movable shaft 4331, the revolution and rotation of the planetary sprocket 433 drive the box grabbing suction cup 44 to swing at an angle based on the transmission ratio of the fixed sprocket 431 and the planetary sprocket 433 to obtain an angular difference. Therefore, the corresponding transmission ratio is selected according to the angle between the second conveyor 30 and the third conveyor 50, so that the packaging box 90 adsorbed on the box grabbing suction cup 44 can be in a state where the length direction is consistent with the third direction when it reaches the third conveyor 50. The structure is simple and compact, and the control difficulty is low.

[0035] It should be noted that, combined with Figure 1 and Figure 5 It is understood that in this embodiment, the gear ratio of the fixed sprocket 431 and the planetary sprocket 433 is 90°:N; wherein N is the supplementary angle of the angle between the second direction and the third direction, and 0°<N<180°.

[0036] The supplementary angle of the angle between the second direction and the third direction is actually the arrangement angle of the second conveyor 30 and the third conveyor 50. Therefore, the planetary sprocket 433 is required to have an orbital angle of N around the fixed sprocket 431. When the packaging box 90 has only an orbital motion without self-rotation, its length direction is perpendicular to the third direction after reaching the third conveyor 50. In other words, the packaging box 90 needs to rotate 90° to form a state in which the length direction is consistent with the third direction. Therefore, the tooth ratio of the fixed sprocket 431 and the planetary sprocket 433 is 90°:N. In this way, the angle change of the packaging box 90 based on the orbital motion is N, and the self-rotation is used to offset the angle change of 90°, so that the actual angle change of the packaging box 90 is N-90°.

[0037] For example, if the second conveyor 30 and the third conveyor 50 are arranged vertically, N=90°, and the gear ratio of the fixed sprocket 431 and the planetary sprocket 433 is selected to be one to one. In this case, the angle of the package box 90 is always kept unchanged when it is transferred from the second conveyor 30 to the third conveyor 50, that is, the angle changes of the package box 90 caused by the revolution and rotation cancel each other out, so that when the package box 90 reaches the third conveyor 50, the length direction still remains consistent with the first direction. Since the first direction and the third direction are parallel when N=90°, the length direction of the package box 90 is consistent with the third direction at this time.

[0038] If the angle between the second conveyor 30 and the third conveyor 50 is 120°, that is, N=120°, the packaging box 90 needs to rotate 30° to change from a state in which the length direction is consistent with the first direction to a state in which the length direction is consistent with the third direction. In this case, the tooth ratio of the fixed sprocket 431 and the planetary sprocket 433 is selected as three to four. When the relative rotation angle between the fixed sprocket 431 and the chain 434 is 120°, that is, the orbital angle is 120°, the packaging box 90 is transferred from the second conveyor 30 to the third conveyor 50, and the angle change brought about during the transfer process is 120°, and the rotation angle formed by the planetary sprocket 433 based on the transmission ratio is 90°. Therefore, the actual angle change of the packaging box 90 during the transfer process is N-90°=30°, thereby achieving a state in which the length direction of the packaging box 90 is consistent with the third direction when it arrives at the third conveyor 50.

[0039] In some embodiments, the transmission frame 432 is configured as follows: Figure 3 and Figure 4 The structure shown in the figure comprises a first rod body 4321 and a second rod body 4322 connected at an angle, the connecting portion of the first rod body 4321 and the second rod body 4322 is rotatably sleeved on the axle of the fixed sprocket 431, the end of the first rod body 4321 away from the fixed sprocket 431 is rotatably sleeved on the axle of the planetary sprocket 433, the end of the second rod body 4322 away from the fixed sprocket 431 is rotatably connected to the rocker 435, the output end of the rotary drive member 42 is rotatably connected to the crank 421, and the crank 421 is rotatably connected to the rocker 435; wherein, when the crank 421 rotates one circle, the rocker 435 drives the second rod body 4322 to swing back and forth at an angle of N.

[0040] The output end of the rotating drive member 42 and the axle of the fixed sprocket 431, i.e., the fixed axis 4311, are both fixed rotation connection points. The second rod body 4322, the crank 421 and the rocker 435 form a crank 421 rocker 435 motion pair based on the above two rotation connection points. Through the size constraints of the second rod body 4322, the crank 421 and the rocker 435, the rotating drive member 42 can drive the crank 421 to rotate one circle, and the second rod body 4322 can perform a reciprocating swing of an angle N under the drive of the rocker 435. In this way, the packaging box 90 can be transferred from the second conveyor 30 to the third conveyor 50 through the unidirectional rotation of the rotating drive member 42, and after the packaging box 90 is transferred to the third conveyor 50, the box grabbing suction cup 44 automatically resets to the state of preparing to grab the next packaging box 90 from the second conveyor 30, thereby greatly reducing the control difficulty and improving the movement accuracy.

[0041] For some examples, see Figure 1 A telescopic stopper 31 is provided on the second conveyor 30. The telescopic stopper 31 has an intercepting state in which it is extended to block the packaging box 90. The intercepting state is used to make the packaging box 90 stay in a position aligned with the first conveyor 10 along the first direction. The telescopic stopper 31 also has a releasing state in which it is retracted to avoid the packaging box 90.

[0042] The telescopic stopper 31 can specifically be a baffle that drives the baffle to move vertically up and down or horizontally along the first direction through a telescopic cylinder. The telescopic stopper 31 can position the packing position of the packing box 90 by the partition of the packing box 90, thereby ensuring that the packing mechanism 20 can accurately release the grasped soft packaging material 80 into the packing box 90, avoiding the situation where the soft packaging material 80 released for packing cannot accurately fall into the packing box 90 due to the misalignment of the stop position of the packing box 90, thereby improving the stability of the packing process.

[0043] It is important to understand that see Figure 1 The above-mentioned automatic boxing production line for strip-shaped soft packaging materials also includes a controller, and a first sensor 71, a counter 70, a second sensor 72, and a third sensor 73 electrically connected to the controller respectively; wherein the first sensor 71 is used to detect the running position of the soft packaging material 80 on the first conveyor 10, the counter 70 is used to detect the number of boxing actions of the boxing mechanism 20, the second sensor 72 is used to detect the running position of the packaging box 90 on the second conveyor 30, and the third sensor 73 is used to detect whether the box moving mechanism 40 transfers the packaging box 90 to the third conveyor 50.

[0044] The first conveyor 10, the box packing mechanism 20, the second conveyor 30, the box moving mechanism 40, and the third conveyor 50 are all controlled by the controller. The box sealing machine 60 is an existing mature packaging equipment, so it can control the box sealing action based on its own control system. Of course, it can also be controlled by the controller. The telescopic stopper 31 is also controlled by the controller; the first sensor 71 is arranged at the end of the first conveyor 10 close to the second conveyor 30 to detect whether the soft package material 80 moves to the grabbing target position; the counter 70 is arranged at the junction of the first conveyor 10 and the second conveyor 30 and is located at the box packing mechanism 20 Directly below it, it is used to detect and count the number of times the packing mechanism 20 passes over it; the second sensor 72 is arranged at the end of the second conveyor 30 close to the third conveyor 50, and is used to detect whether the packaging box 90 reaches the grabbing position of the box transfer mechanism 40; the third sensor 73 is arranged at the end of the third conveyor 50 close to the second conveyor 30, and is used to detect whether the box transfer mechanism 40 transfers the packaging box 90 to the third conveyor 50; each of the above sensors can be a proximity sensor or a through-beam infrared sensor, and the counter 70 can be a proximity sensor or a through-beam infrared sensor with an accumulation function.

[0045] Based on the above controller and various sensors, the automatic control logic of the strip soft package automatic packing production line provided in this embodiment is: when the first sensor 71 detects that the soft package material 80 is moving on the first conveyor 10 to the grabbing target position, the controller controls the first conveyor 10 to stop running (since the grabbing action of the grabbing component 22 is an instantaneous action, the first conveyor 10 may not stop), and at the same time controls the linear drive 23 to drive the grabbing component 22 to move upward from the first conveyor 10, and at the same time controls the telescopic drive 222 to drive the two opening and closing hand grips 224 to open. During this process, the grabbing frame 223 passes above the counter 70, and the counter 70 counts once; after the linear drive 23 drives the grabbing component 22 to move into place, the telescopic drive 222 drives the two opening and closing hand grips 224 to close and grab the soft package material 80, and then the linear drive 23 drives the grabbing component 22 to move in the opposite direction, and the grabbing frame 223 passes the counter 70. When the grabbing assembly 22 moves to the top of the packaging box 90 (the telescopic stroke of the linear drive member 23 such as the telescopic cylinder is fixed, and here it can be that the grabbing assembly 22 reaches the top of the packaging box 90 when the lever is fully extended, and reaches the top of the soft package material 80 located at the grabbing target position on the first conveyor 10 when it is fully retracted), the telescopic drive member 222 drives the two opening and closing hand grips 224 to open and release the soft package material 80, and the soft package material 80 automatically falls into the packaging box 90, completing the packing of one soft package material 80, and repeating this process until the target number of soft packages 80 are loaded into the packaging box 90. For example, eighteen soft packages 80 are required to be loaded into each packaging box 90. When the accumulated number of times of the counter 70 reaches thirty-six times, it means that the packaging box 90 is full. In order to improve the counting accuracy, the counter 70 can be automatically reset to zero after completing a counting cycle to re-count the next packing process.

[0046] It should be noted that during the packing process, the controller controls the telescopic stopper 31 to extend and maintain the intercepting state, so as to ensure that the packaging box 90 stays in the accurate position on the second conveyor 30; when the accumulated number of times of the counter 70 reaches the set value, the controller controls the telescopic stopper 31 to retract the stroke release state, and at the same time controls the second conveyor 30 to drive the packaging box 90 to move. When the packaging box 90 moves on the second conveyor 30 to the grabbing target position of the box transfer mechanism 40 (in order to prevent the packaging box 90 from falling off the second conveyor 30 due to the continuous movement of the second conveyor 30, the second conveyor 30 is close to the third conveyor 50) A pallet 32 ​​can be set at the end as the grabbing target position, and the packaging box 90 finally stops on the pallet 32 ​​under the transportation of the second conveyor 30) and is detected by the second sensor 72. At this time, the controller controls the telescopic stopper 31 to re-extend to form an interception state according to the signal of the second sensor 72. The next packaging box 90 enters the second conveyor 30 and stops at a position aligned with the first conveyor 10 along the first direction under the interception action of the telescopic stopper 31 to wait for loading (the action of the telescopic stopper 31 in this process can also be controlled based on the time parameters set in the controller, that is, the telescopic stopper 31 switches to the release state). After the moving state is maintained for a certain period of time, it automatically switches to the intercepting state again without relying on the sensing signal of the second sensor 72); after the second sensor 72 detects that the packaging box 90 filled with soft packaging materials 80 has reached the grabbing target position, the controller controls the box moving mechanism 40 to act, specifically, controls the box grabbing suction cup 44 to adsorb the packaging box 90 (the box grabbing suction cup 44 is a negative pressure adsorption, and the on and off of the negative pressure pipeline is controlled to achieve adsorption and release). After adsorption, the controller controls the rotating driving member 42 to drive the crank 421 to rotate one circle. During the process of the crank 421 rotating one circle, due to the forward and reverse reciprocating swing of the second rod body 4322, in the forward swing When the limit angle N is reached, the packaging box 90 arrives on the third conveyor 50 and is detected by the third sensor 73. The controller controls the box grabbing suction cup 44 to release the packaging box 90 according to the detection signal of the third sensor 73. Then the second rod body 4322 swings back and resets to form an initial state of waiting to grab the next packaging box 90 from the second conveyor 30. After the third sensor 73 detects the packaging box 90, the controller controls the third conveyor 50 to run, thereby driving the packaging box 90 to move toward the carton sealing machine 60. When the packaging box 90 arrives at the carton sealing machine 60, two cable ties 91 are automatically tied to complete the entire packing process.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Automatic boxing production line for strip soft packaging materials, characterized by: The invention comprises a first conveyor, a box packing mechanism, a second conveyor, a box transfer mechanism, a third conveyor, and a box sealing machine; the first conveyor is used to transport soft packaging materials along a first direction, the second conveyor is used to transport packaging boxes along a second direction perpendicular to the first direction, and the third conveyor is used to transport the packaging boxes along a third direction, wherein the third direction forms an angle with the second direction; the box packing mechanism is located between the first conveyor and the second conveyor, and is used to sequentially grab the soft packaging materials into packaging boxes aligned with the first conveyor along the first direction; the box transfer mechanism is located between the second conveyor and the third conveyor, and is used to transfer packaging boxes filled with the soft packaging materials from the second conveyor to the third conveyor; the box sealing machine is connected to an end of the third conveyor away from the second conveyor; The process of transferring the packaging box by the box-moving mechanism includes revolution and rotation, and the revolution and rotation together cause the length direction of the packaging box to be converted from being parallel to the first direction to being parallel to the third direction.

2. The automatic boxing production line for strip-shaped soft packaging materials according to claim 1, characterized in that: The packing mechanism comprises: A gantry frame fixedly connected to an end of the first conveyor close to the second conveyor; A grabbing assembly, slidably connected to the gantry along the first direction; A linear drive component, which is arranged on the gantry and has an output end connected to the grabbing assembly; The grabbing assembly is used to move to the top of the first conveyor driven by the linear drive member to grab the soft package material, and to move to the top of the packaging box driven by the linear drive member to release the soft package material.

3. The automatic boxing production line for strip-shaped soft packaging materials according to claim 2, characterized in that: The grabbing component comprises: A slide seat, slidably connected to the gantry and connected to an output end of the linear drive member; A telescopic driving member, fixedly connected to the slide seat and having an output end that telescopes in a vertical direction; A material grabbing frame connected to the slide or the telescopic driving member, the material grabbing frame having two downwardly extending connecting arms spaced apart along the first direction; Two opening and closing hand grips are respectively connected to one of the connecting arms, and both of the opening and closing hand grips are connected to the output end of the telescopic driving member, and are used to open and close synchronously under the drive of the telescopic driving member to grab or release the soft packaging material.

4. The automatic boxing production line for strip-shaped soft packaging materials according to claim 3 is characterized in that: The output end of the telescopic drive member is connected to a cross bar, and the cross bar extends along the first direction; the opening and closing hand grab includes two claw arms and two claw bodies; wherein, the two claw bodies are symmetrically distributed with the connecting arm as the center and the middle parts of both are hinged to the connecting arm, the lower ends of the two claw bodies are provided with claw grooves matching the circumferential shape of the soft package material, the upper ends of the two claw bodies are rotatably connected to the lower end of one of the claw arms respectively, and the upper ends of the two claw arms are rotatably connected to the end of the cross bar; an elastic traction member is connected between the upper ends of the two claw arms or the two claw bodies.

5. The automatic boxing production line for strip-shaped soft packaging materials according to claim 1, characterized in that: The box-shifting mechanism comprises: A bracket fixedly supported at a corner area formed by the second conveyor and the third conveyor; A rotating driving member, vertically fixed to the bracket; A planetary transmission assembly is arranged on the bracket, the power input end of the planetary transmission assembly is transmission-connected with the output end of the rotary drive member, and the power output end of the planetary transmission assembly has a revolution degree of freedom of horizontal swing and a rotation degree of freedom of horizontal rotation; The box grabbing suction cup is connected to the power output end of the planetary transmission assembly and is used for adsorbing the packaging box.

6. The automatic boxing production line for strip-shaped soft packaging materials according to claim 5, characterized in that: The planetary transmission assembly comprises: A fixed sprocket, fixedly connected to the bracket; A transmission frame, rotatably connected to the axle of the fixed sprocket and transmission-connected to the output end of the rotary drive member, wherein the transmission frame swings around the axle of the fixed sprocket driven by the rotary drive member; A planetary sprocket is rotatably connected to the transmission frame and is connected to the fixed sprocket through a chain transmission, and the wheel shaft of the planetary sprocket is connected to the box grabbing suction cup; The planetary sprocket is used to perform the orbital motion around the fixed sprocket driven by the transmission frame, and is also used to perform the rotational motion driven by the chain.

7. The automatic boxing production line for strip-shaped soft packaging materials according to claim 6, characterized in that: The gear ratio of the fixed sprocket and the planetary sprocket is 90°:N, wherein N is the supplementary angle of the angle between the second direction and the third direction, and 0°<N<180°.

8. The automatic boxing production line for strip-shaped soft packaging materials according to claim 7, characterized in that: The transmission frame includes a first rod body and a second rod body connected at an angle, the connecting part of the first rod body and the second rod body is rotatably sleeved on the axle of the fixed sprocket, the end of the first rod body away from the fixed sprocket is rotatably sleeved on the axle of the planetary sprocket, the end of the second rod body away from the fixed sprocket is rotatably connected to a rocker, the output end of the rotating drive member is rotatably connected to a crank, and the crank is rotatably connected to the rocker; wherein, when the crank rotates one circle, the rocker drives the second rod body to swing back and forth at an angle of N.

9. The automatic boxing production line for strip-shaped soft packaging materials according to claim 1, characterized in that: The second conveyor is provided with a telescopic stopper, which has an intercepting state of extending to block the packaging box, and the intercepting state is used to make the packaging box stay in a position aligned with the first conveyor along the first direction. The telescopic stopper also has a releasing state of retracting to avoid the packaging box.

10. The automatic boxing production line for strip-shaped soft packaging materials according to any one of claims 1 to 9, characterized in that: The automatic boxing production line for strip-shaped soft packaging materials also includes a controller, and a first sensor, a counter, a second sensor, and a third sensor electrically connected to the controller respectively; wherein the first sensor is used to detect the running position of the soft packaging material on the first conveyor, the counter is used to detect the number of boxing actions of the boxing mechanism, the second sensor is used to detect the running position of the packaging box on the second conveyor, and the third sensor is used to detect whether the box transfer mechanism transfers the packaging box to the third conveyor.

Images