Carton opening device and carton forming machine

Abstract

The application discloses a box opening device and a carton forming machine. The box opening device comprises a suction module, a first driving mechanism and a second driving mechanism. The suction module comprises a sliding support, a first suction assembly, a second suction assembly and a rotating support. The first suction assembly is arranged on the sliding support. The second suction assembly is arranged on the rotating support and located on one side of the first suction assembly. The rotating support is rotatably connected to the sliding support and rotates between a first position and a second position. When the rotating support is in the first position, the suction surface of the second suction assembly is coplanar with the suction surface of the first suction assembly. When the rotating support is in the second position, the suction surface of the second suction assembly is perpendicular to the suction surface of the first suction assembly. The first driving mechanism is used for driving the sliding support to move between a material taking position and a box opening position. The second driving mechanism is used for driving the rotating support to slide between the first position and the second position. The application can reduce the damage to the surface of the carton during the box opening process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging equipment, in particular to a carton opening device and a carton forming machine with the same. BACKGROUND

[0002] Most of the cartons supplied on the market are in the form of flattened carton boards, for the convenience of storage and transportation, and when needed, the carton boards are processed by a carton forming machine to open the carton and fold into a box shape. The carton forming machine usually comprises a feeding device and an opening device, wherein the feeding device is used to supply the carton boards to the opening device, and the opening device comprises an adsorption assembly and an arc-shaped guide structure arranged on one side of the adsorption assembly. The adsorption assembly can be driven by a driving mechanism to approach or move away from the discharge side of the feeding device. When the adsorption assembly is at a position close to the discharge side of the feeding device, it can adsorb the first paperboard part of the carton board (the first paperboard part corresponds to one side surface of the formed box), and when the adsorption assembly drives the carton board to move away from the discharge side of the feeding device, the arc-shaped guide structure can abut against the second paperboard part of the carton board (the second paperboard part is located on the opposite side of the same fold line as the first paperboard part), so that the second paperboard part rotates relative to the first paperboard part, and the entire carton board is opened, i.e. the carton board is opened to form a rectangular box shape with the top and bottom not closed. Although this kind of opening device is simple, there is relative friction between the surface of the carton board and the arc-shaped guide structure, which can easily damage the surface of the carton. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides an opening device which can reduce the damage to the surface of the carton board during the opening process.

[0004] The present application also provides a carton forming machine with the above opening device.

[0005] According to the opening device of the first aspect of the present application, the opening device comprises an adsorption module, a first driving mechanism and a second driving mechanism. The adsorption module comprises a sliding bracket, a first adsorption assembly, a second adsorption assembly and a rotating bracket. The first adsorption assembly is arranged on the sliding bracket, the second adsorption assembly is arranged on the rotating bracket and located on one side of the first adsorption assembly, and the rotating bracket is rotatably connected to the sliding bracket and can drive the second adsorption assembly to rotate between a first position and a second position. When in the first position, the adsorption surface of the second adsorption assembly is coplanar with the adsorption surface of the first adsorption assembly, and when in the second position, the adsorption surface of the second adsorption assembly is perpendicular to the adsorption surface of the first adsorption assembly. The first driving mechanism is connected to the sliding bracket and is used to drive the sliding bracket to move between a material taking position and an opening position. The second driving mechanism is connected to the sliding bracket and is used to drive the rotating bracket to slide between the first position and the second position.

[0006] According to the carton opening device of the first aspect of the present application, at least the following beneficial effects are achieved:

[0007] When the carton board is processed by the carton opening device of the present embodiment, the sliding support is first moved to the material taking position under the drive of the first driving mechanism, and the rotating support is rotated to the first position under the drive of the second driving mechanism, so that the suction surface of the second suction assembly and the suction surface of the first suction assembly are coplanar, to respectively suction the first paperboard part and the second paperboard part on the same fold line of the carton board. Then, the sliding support is moved to the carton opening position under the drive of the first driving mechanism, and the rotating support is rotated to the second position under the drive of the second driving mechanism, so that the suction surface of the second suction assembly and the suction surface of the first suction assembly are perpendicular to each other, and then the second paperboard part is rotated to a position perpendicular to the first paperboard part following the second suction assembly, that is, the carton board is processed. Therefore, the carton opening device of the present embodiment does not have the problem of surface damage of the carton caused by the mutual friction between the arc-shaped guide structure and the surface of the carton during the carton opening process, thereby improving the appearance quality of the packaged product.

[0008] According to the carton opening device of the first aspect of the present application, the second suction assembly is slidably connected to the rotating support, and the sliding direction of the second suction assembly relative to the rotating support is perpendicular to the rotating axis of the rotating support and parallel to the suction surface of the second suction assembly.

[0009] According to the carton opening device of the first aspect of the present application, the suction module further comprises a first elastic member connected to the rotating support and the second suction assembly, and the first elastic member is used to provide an elastic restoring force for sliding the second suction assembly to the side close to the first suction assembly.

[0010] According to the carton opening device of the first aspect of the present application, the second suction assembly comprises at least two universal suction nozzles, and the suction ends of each universal suction nozzle jointly form the suction surface of the second suction assembly.

[0011] According to the carton opening device of the first aspect of the present application, the suction module further comprises a suction nozzle telescopic drive arranged on the sliding support, and the driving end is connected to the first suction assembly and is used to drive the first suction assembly to move in a direction perpendicular to the suction surface thereof.

[0012] According to the box opening device of some embodiments of the first aspect of the present application, the box opening device comprises a fixed connecting plate, the second driving mechanism comprises a swing rod and a swing support, the swing support is arranged on the fixed connecting plate, and two ends of the swing rod are rotatably connected with the swing support and the rotating support respectively; when the sliding support moves from the material taking position to the box opening position, the swing rod can swing and drive the rotating support to rotate from the first position to the second position; when the sliding support moves from the box opening position to the material taking position, the swing rod can swing and drive the rotating support to rotate from the second position to the first position.

[0013] According to the box opening device of some embodiments of the first aspect of the present application, the second driving mechanism further comprises a second elastic member and a limiting member, the swing support is slidably connected on the fixed connecting plate, and the sliding direction of the swing support is parallel to the driving direction of the first driving mechanism, the limiting member is arranged on the sliding path of the swing support, and the second elastic member connects the swing support and the fixed connecting plate and is used to provide an elastic restoring force for making the swing support close to and abut against the limiting member.

[0014] According to the box opening device of some embodiments of the first aspect of the present application, in the state that the sliding support is located at the box opening position and the rotating support is located at the second position, the swing support abuts against the limiting member; and in the state that the sliding support is located at the material taking position and the rotating support is located at the first position, the swing support is separated from the limiting member.

[0015] According to the box opening device of some embodiments of the first aspect of the present application, a limiting structure is arranged on the sliding support, and the limiting structure abuts against the rotating support when the rotating support rotates to the first position.

[0016] According to the carton forming machine of some embodiments of the second aspect of the present application, the carton forming machine comprises the box opening device of the above-mentioned embodiments of the first aspect.

[0017] According to the carton forming machine of some embodiments of the second aspect of the present application, at least the following beneficial effects are achieved:

[0018] By adopting the box opening device of the above-mentioned embodiments of the first aspect, the problem of surface damage of the carton caused by friction can be improved, and thus the appearance quality of the product after packaging can be improved.

[0019] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 The structural schematic diagram of the box opening device of one embodiment of the present application in one perspective view;

[0022] Figure 2 As shown in FIG. 1, the opening box device is in a state of opening a box; Figure 1 As shown in FIG. 2, the opening box device is in a structure diagram from another perspective;

[0023] Figure 3 As shown in FIG. 3, the opening box device is in a state of adsorbing a box board to a material taking position to complete the adsorption of the box board; Figure 1 As shown in FIG. 4, the opening box device is in a state of adsorbing a box board to a box opening position to complete the opening of the box board;

[0024] Figure 4 As shown in FIG. 5, the opening box device is in a state of adsorbing a box board to a box opening position to complete the opening of the box board; Figure 1 As shown in FIG. 6, the opening box device is in a state of adsorbing a box board to a box opening position to complete the opening of the box board;

[0025] Figure 5 As shown in FIG. 7, the opening box device is in a state of adsorbing a box board to a box opening position to complete the opening of the box board; Figure 1 As shown in FIG. 8, the opening box device is in a state of adsorbing a box board to a box opening position to complete the opening of the box board;

[0026] Figure 6 As shown in FIG. 9, the opening box device is in a state of adsorbing a box board to a box opening position to complete the opening of the box board. Figure 1 As shown in FIG. 10, the opening box device is in a state of adsorbing a box board to a box opening position to complete the opening of the box board.

[0027] Reference signs:

[0028] Box board 10; first paper board part 11; second paper board part 12; fixed connecting plate 100; second sliding rail 110; second sliding block 120; adsorption module 300; sliding support 310; limiting structure 311; first adsorption assembly 320; second adsorption assembly 330; suction nozzle mounting plate 331; strip-shaped slot 332; universal suction nozzle 333; suction nozzle part 334; rotating support 340; first sliding rail 341; first sliding block 342; connecting rod 343; first elastic member 350; suction nozzle telescopic drive 360; connecting plate 361; strip-shaped hole 362; first driving mechanism 400; swing lever 510; swing support 520; second elastic member 530; limiting member 540. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments shown in the drawings are examples only and are intended to explain the present application, and should not be understood as a limitation of the present application.

[0030] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, left, right, front, back, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as a limitation of the present application.

[0031] In the description of the present application, if the first, second, only for the purpose of distinguishing technical features, and can not be understood as indicating or implying the relative importance or implied indicated the number of technical features or implied indicated the technical features of the order.

[0032] In the description of the present application, unless otherwise expressly limited, the word set, install, connect and the like should be broadly understood, the skilled in the art can be combined with the specific content of the technical solution to determine the specific meaning of the above words in the present application.

[0033] The following refers to the accompanying drawings which illustrate Figure 1 to the drawings Figure 6 , the opening box device of the first aspect of the present application is described.

[0034] Referring to Figures 1 to 4 , according to some embodiments of the present application, the opening box device comprises an adsorption module 300; wherein the adsorption module 300 comprises a sliding bracket 310, a first adsorption assembly 320, a second adsorption assembly 330 and a rotating bracket 340, the sliding bracket 310 is slidably arranged and can move between the material taking position and the opening box position, and the material taking position is located on the discharge side of the paper box board feeding device (another device except the opening box device of the paper box forming machine, and used to supply the paper box board 10 to the opening box device); and the first adsorption assembly 320, the second adsorption assembly 330 and the rotating bracket 340 are all arranged on the sliding bracket 310; and specifically, the second adsorption assembly 330 is located on one side of the first adsorption assembly 320 and is arranged on the rotating bracket 340, and the rotating bracket 340 is rotatably connected to the sliding bracket 310, so that by rotating the rotating bracket 340, the second adsorption assembly 330 can be driven to rotate relative to the sliding bracket 310 and the first adsorption assembly 320 between the first position and the second position; and when in the first position, the adsorption surface of the second adsorption assembly 330 is coplanar with the adsorption surface of the first adsorption assembly 320; when in the second position, the adsorption surface of the second adsorption assembly 330 is perpendicular to the adsorption surface of the first adsorption assembly 320.

[0035] It should be understood that, with reference to Figure 3 and Figure 4The first and second adsorption assemblies 320 and 330 are respectively used to adsorb the first and second paperboard portions 11 and 12 on opposite sides of the same fold line of the carton board 10; when the sliding bracket 310 moves to the material taking position, the rotating bracket 340 drives the second adsorption assembly 330 to rotate to the first position, so that the first and second adsorption assemblies 320 and 330 jointly adsorb the planar carton board 10 supplied by the carton board feeding device, and the first and second adsorption assemblies 320 and 330 respectively adsorb the coplanar first and second paperboard portions 11 and 12 at this time; when the sliding bracket 310 moves to the carton opening position, the rotating bracket 340 drives the second adsorption assembly 330 to rotate to the second position, so that the second paperboard portion 12 follows the second adsorption assembly 330 to rotate to a position perpendicular to the adsorption surface of the first adsorption assembly 320 and the first paperboard portion 11.

[0036] It can be understood that, in order to drive the sliding bracket 310 to move, the first driving mechanism 400 is drivingly connected to the sliding bracket 310, and is used to drive the sliding bracket 310 to drive the first and second adsorption assemblies 320 and 330 and the rotating bracket 340 to move together between the material taking position and the carton opening position. Figures 1 to 4 The carton opening device further comprises a first driving mechanism 400, which is drivingly connected to the sliding bracket 310, and is used to drive the sliding bracket 310 to drive the first and second adsorption assemblies 320 and 330 and the rotating bracket 340 to move together between the material taking position and the carton opening position; and in order to drive the rotating bracket 340 to rotate, the carton opening device further comprises a second driving mechanism, which is drivingly connected to the rotating bracket 340, and is used to drive the rotating bracket 340 to drive the second adsorption assembly 330 to rotate between the first and second positions.

[0037] It can be understood that, in order to drive the sliding bracket 310 to move, the first driving mechanism 400 is drivingly connected to the sliding bracket 310, and is used to drive the sliding bracket 310 to drive the first and second adsorption assemblies 320 and 330 and the rotating bracket 340 to move together between the material taking position and the carton opening position. Figure 3 and Figure 4In the opening device of the present embodiment, when the carton board 10 is subjected to the opening process, the sliding support 310 is first moved to the material taking position (i.e. the discharge side of the carton board feeding device) under the drive of the first driving mechanism 400, and the rotating support 340 is rotated to the first position under the drive of the second driving mechanism, so that the suction surface of the second suction assembly 330 and the suction surface of the first suction assembly 320 are coplanar to respectively suction the first paper board portion 11 and the second paper board portion 12 on the same fold line of the carton board 10; then the sliding support 310 is moved to the opening position under the drive of the first driving mechanism 400, and the rotating support 340 is rotated to the second position under the drive of the second driving mechanism, so that the suction surface of the second suction assembly 330 and the suction surface of the first suction assembly 320 are perpendicular to each other, and then the second paper board portion 12 is rotated to the position perpendicular to the first paper board portion 11 under the drive of the second suction assembly 330, i.e. the opening process of the carton board 10 is completed. Therefore, the opening device of the present embodiment does not have the problem of surface damage of the carton caused by the mutual friction between the arc-shaped guide structure and the carton during the opening process, and thus the appearance quality of the packaged product can be improved.

[0038] It can be understood that, considering that, during the process of rotating the second paper board portion 12 to the second position relative to the first suction assembly 320 and the first paper board portion 11 under the drive of the second suction assembly 330, the fold line between the first paper board portion 11 and the second paper board portion 12 cannot be completely collinear with the rotation axis of the rotating support 340, the second paper board portion 12 will have a certain relative position change relative to the second suction assembly 330, which will cause the suction nozzle portion 334 in the second suction assembly 330 to deform to adapt to the above-mentioned relative position change of the second paper board portion 12, and thus the suction nozzle portion 334 in the second suction assembly 330 will be likely to be damaged by fatigue after long-term use, or the second paper board portion 12 will be likely to be separated from the second suction assembly 330 during the rotation to the second position when the above-mentioned relative position change is large; therefore, in order to reduce the fatigue damage of the suction nozzle portion 334 or solve the problem of separation of the second paper board portion 12 from the second suction assembly 330, in some embodiments, the second suction assembly 330 is provided with a plurality of suction nozzle portions 334, and the suction nozzle portions 334 are arranged in a staggered manner. Figure 1 and Figure 2, the second adsorption assembly 330 is slidably connected to the rotating support 340, and the sliding direction of the second adsorption assembly 330 relative to the rotating support 340 is perpendicular to the rotation axis of the rotating support 340 and parallel to the adsorption surface of the second adsorption assembly 330, so that in the process of rotating the second paperboard part 12 relative to the first adsorption assembly 320 and the first paperboard part 11 to the second position by the second adsorption assembly 330, the second adsorption assembly 330 will be able to slide on the rotating support 340 under the pulling of the second paperboard part 12, thereby effectively eliminating the relative position change of the second adsorption assembly 330 and the second paperboard part 12 caused by the inconsistent rotation center in the rotation process, thereby being able to reduce the problem of fatigue damage of the suction nozzle part 334 caused thereby, or solve the problem of the second paperboard part 12 separating from the second adsorption assembly 330.

[0039] It can be understood that, in order to define the initial position of the second adsorption assembly 330 on the rotating support 340, to avoid the second adsorption assembly 330 from sliding on the rotating support 340 at will, and to enable the second adsorption assembly 330 to be driven by the second paperboard part 12 to adjust the sliding during rotation to the second position, in some embodiments, with reference to Figure 1 , the adsorption module 300 further comprises a first elastic member 350; the first elastic member 350 is connected to the rotating support 340 and the second adsorption assembly 330, and the first elastic member 350 is used to provide an elastic restoring force for sliding the second adsorption assembly 330 to the side close to the first adsorption assembly 320, so that before the rotating support 340 is rotated to the first position and the second paperboard part 12 has not been adsorbed, the second adsorption assembly 330 can be pulled to a position relatively close to the first adsorption assembly 320 under the action of the elastic restoring force of the first elastic member 350, and when the second adsorption assembly 330 adsorbs the second paperboard part 12 and rotates to the second position under the driving of the rotating support 340, the second adsorption assembly 330 can slide to the side of the rotating support 340 away from the first adsorption assembly 320 under the pulling force of the second paperboard part 12, overcoming the elastic restoring force of the first elastic member 350.

[0040] It should be understood that, in one embodiment, in order to realize the sliding of the second adsorption assembly 330 on the rotating support 340, with reference to Figure 1 and Figure 2 , the rotating support 340 is provided with a first sliding rail 341 perpendicular to the rotation axis of the rotating support 340 and parallel to the adsorption surface of the second adsorption assembly 330, and a first sliding block 342 is slidably connected on the first sliding rail 341, and the second adsorption assembly 330 is connected to the second sliding block 120.

[0041] It can be understood that, considering that, in the process of driving the second paperboard portion 12 to rotate to the second position by the second suction assembly 330, the rotation axis of the rotating support 340 cannot be completely collinear with the fold line between the first paperboard portion 11 and the second paperboard portion 12, the second paperboard portion 12 can also have a certain relative angular posture change relative to the second suction assembly 330, which will also cause the suction nozzle portion 334 in the second suction assembly 330 to deform to adapt to the above-mentioned relative angular posture change of the second paperboard portion 12, and thus fatigue damage of the suction nozzle portion 334 in the second suction assembly 330 will be caused after long-term use, or when the above-mentioned relative angular posture change is large, the second paperboard portion 12 can also be directly separated from the second suction assembly 330 in the process of rotating to the second position; therefore, in order to alleviate the fatigue damage problem of the suction nozzle portion 334 caused by the above-mentioned relative angular posture change, or to solve the problem of the second paperboard portion 12 being separated from the second suction assembly 330 caused by the above-mentioned relative angular posture change, in some embodiments, referring to Figure 5 , the second suction assembly 330 includes at least two universal suction nozzles 333, and the suction ends of each universal suction nozzle 333 jointly form the suction surface of the second suction assembly 330; it should be understood that the suction end of the universal suction nozzle 333 is the suction nozzle portion 334, and the suction nozzle portion 334 is connected to the universal suction nozzle 333 through a universal ball head structure, so that the suction nozzle portion 334 of the universal suction nozzle 333 can rotate together with the second paperboard portion 12 adsorbed on the suction surface of the second suction assembly 330, thereby alleviating the fatigue damage problem of the above-mentioned suction nozzle portion 334 and solving the problem of the above-mentioned second paperboard portion 12 being separated from the second suction assembly 330.

[0042] It should be understood that, in order to facilitate the installation of the universal suction nozzle 333, in some embodiments, referring to Figure 5 , the second suction assembly 330 further includes a suction nozzle mounting plate 331, and the universal suction nozzles 333 are spaced apart and mounted on the suction nozzle mounting plate 331; and in order to enable the second suction assembly 330 to adapt to the suction of cartons of various different sizes, at least part of the universal suction nozzles 333 are adjustably connected to the suction nozzle mounting plate 331 in at least one direction parallel to the suction surface of the second suction assembly 330.

[0043] For example, in one embodiment, referring to Figure 5 , the suction nozzle mounting plate 331 is provided with a strip-shaped slot 332 arranged in a first direction, wherein the first direction is parallel to the rotation axis of the rotating support 340 (which is always parallel to the suction surface of the second suction assembly 330), each second suction assembly 330 includes two universal suction nozzles 333, and one of the universal suction nozzles 333 is slidably adjusted and arranged in the strip-shaped slot 332; at the same time, referring to Figure 2 andFigure 5 The second suction assembly 330 is provided with two, and the first sliding block 342 is also provided with two, the two second suction assemblies 330 are respectively connected to the two first sliding blocks 342, and the two first sliding blocks 342 are fixedly connected to each other through the connecting rod 343, so that the distance between the two second suction assemblies 330 can be adjusted by dismounting the connecting rod 343, then adjusting the distance between the two first sliding blocks 342, and then re-connecting the connecting rod 343 to the two first sliding blocks 342, thereby further improving the universal performance of the box opening device.

[0044] It can be understood that, with reference to Figure 6 In one embodiment, the structure of the first suction assembly 320 can be selected with reference to the structure of the second suction assembly 330, and the suction members in the first suction assembly 320 can be selected to be ordinary vacuum nozzles or universal nozzles 333.

[0045] It should be understood that, after the opening of the carton board 10 and the folding of the bottom plate body part of the box, it is necessary to push the box in a direction parallel to the suction surface of the first suction assembly 320 and perpendicular to the rotation axis of the rotating support 340 (i.e. the extension direction of the sliding support 310), so as to move the box to the bottom sealing device for sealing the bottom of the box by glue, so as to avoid friction between the box and the nozzle part 334 of the first suction assembly 320 during the movement of the box to the bottom sealing device, thereby avoiding damage to the first suction assembly 320 and further avoiding damage to the surface of the box. Figure 1 Figure 1 and Figure 6 In one embodiment, the suction module 300 further comprises a nozzle telescopic drive 360, which is provided on the sliding support 310 and has a driving end connected to the first suction assembly 320 and used to drive the first suction assembly 320 to move in a direction perpendicular to the suction surface thereof; so that after the sliding support 310 moves to the material taking position, the first suction assembly 320 can be driven by the nozzle telescopic drive 360 to extend, so that the suction surface of the first suction assembly 320 can be kept in the same plane as the suction surface of the second suction assembly 330 coming to the first position, so as to facilitate the suction of the first paper board part 11, and after the opening of the box and the folding of the bottom plate body part of the box are completed, the vacuum of the first suction assembly 320 and the second suction assembly 330 is disconnected, then the first suction assembly 320 is driven by the nozzle telescopic drive 360 to retract, so that the nozzle part 334 in the first suction assembly 320 is separated from the first paper board part 11, and finally the box is pushed to the bottom sealing device, thereby avoiding damage to the first suction assembly 320 and the surface of the box.

[0046] It should be understood that, in some embodiments, with reference to Figure 2 ​, the two suction nozzles telescopic drives 360 and the first suction assemblies 320 are arranged in pairs, and each first suction assembly 320 is connected to one suction nozzle telescopic drive 360, and the suction nozzle telescopic drive 360 is connected to the sliding bracket 310 in a direction parallel to the suction surface of the first suction assembly 320 and perpendicular to the rotation axis of the rotating bracket 340, so that the distance between the two first suction assemblies 320 can be adjusted, thereby further improving the versatility of the carton opening device; for example, in one embodiment, the suction nozzle telescopic drive 360 is provided with a connecting plate 361, and the connecting plate 361 is provided with a strip-shaped hole 362 extending in the above-mentioned direction (parallel to the suction surface of the first suction assembly 320 and perpendicular to the rotation axis of the rotating bracket 340), and the suction nozzle telescopic drive 360 is connected to the sliding bracket 310 by means of fasteners passing through the strip-shaped hole 362.

[0047] It should be understood that, in one embodiment, the suction nozzle telescopic drive 360 is selected to be a telescopic cylinder; and in other embodiments, the suction nozzle telescopic drive 360 can also be selected to be other types of linear drives such as electric push rods, without specific limitation here.

[0048] It can be understood that, in order to facilitate the installation and fixation of the carton opening device inside the carton forming machine, in one embodiment, the rotating bracket 340 is provided with a rotating bracket connecting plate 341, and the first drive mechanism 400, the second drive mechanism, the sliding bracket 310, etc. are all connected to the rotating bracket connecting plate 341. Figure 1 and Figure 2 The carton opening device comprises a fixed connecting plate 100, wherein the first drive mechanism 400, the second drive mechanism, the sliding bracket 310, etc. are all connected to the fixed connecting plate 100. In one embodiment, specifically, the first drive mechanism 400 is selected to be a linear motor module, and the sliding bracket 310 is connected to the driving part of the linear motor module; it should be understood that, in other embodiments, the first drive mechanism 400 can also be selected to be other types of linear drive mechanisms such as motor screw nut mechanisms or motor gear rack mechanisms, without specific limitation here.

[0049] It can be understood that, in order to reduce the number of drive elements to save costs and make the movement of the rotating bracket 340 more synchronized with the movement of the sliding bracket 310, in some embodiments, the second drive mechanism is a linkage mechanism, which can transmit and convert the sliding movement of the sliding bracket 310 into the rotation of the rotating bracket 340, as described above. Figure 1 and Figure 2Specifically, the second driving mechanism comprises a swing rod 510 and a swing support 520, the swing support 520 is arranged on the fixed connecting plate 100, and the two ends of the swing rod 510 are rotatably connected with the swing support 520 and the rotating support 340 respectively, so that the fixed connecting plate 100, the swing rod 510, the sliding support 310 and the rotating support 340 can jointly constitute a rocker slider mechanism; moreover, the sliding support 310 constitutes a slider in the rocker slider mechanism and is a power input component in the rocker slider mechanism, so that when the sliding support 310 moves from the material taking position to the box opening position, the swing rod 510 can swing towards the direction close to the box opening position and drive the rotating support 340 to rotate from the first position to the second position; and when the sliding support 310 moves from the box opening position to the material taking position, the swing rod 510 can swing towards the direction away from the box opening position and drive the rotating support 340 to rotate from the second position to the first position.

[0050] It can be understood that, for the position layout of various devices (such as the feeding device and the bottom gluing device to be mentioned below) in the carton forming machine, in some embodiments, the distance between the material taking position and the box opening position will be greater than the sliding distance required for the sliding support 310 to drive the rotating support 340 to rotate from the first position to the second position (or from the second position to the first position), so that the sliding support 310 can still continue to slide a certain distance after the rotating support 340 is rotated to the desired angle position. In some embodiments, with reference to Figure 1 and Figure 2 The swing support 520 is slidably connected to the fixed connecting plate 100, and the sliding direction of the swing support 520 is parallel to the driving direction of the first driving mechanism 400, and the second driving mechanism further comprises a second elastic member 530 and a limiting member 540, the limiting member 540 is arranged on the sliding path of the swing support 520, and the second elastic member 530 connects the swing support 520 and the fixed connecting plate 100 and is used to provide an elastic restoring force for making the swing support 520 close to and abut against the limiting member 540.

[0051] It should be understood that, through the above structure, assuming that the sliding bracket 310 is at the sliding starting position (which can be the taking position or the opening box position), the swing support 520 is abutted against the limiting piece 540 under the elastic restoring force of the second elastic piece 530, so that in the initial distance of the sliding of the sliding bracket 310, due to the pressure of the elastic restoring force of the second elastic piece 530 on the swing support 520, the swing support 520 will remain in the state of abutting against the limiting piece 540, and the rotating bracket 340 will be driven to rotate by the swing lever 510 and rotate to the position (from the first position to the second position, or from the second position to the first position), and then because the rotating bracket 340 cannot continue to rotate after rotating to the position (generally because it is limited by the related rotation limiting structure after rotating to the position), the rotating bracket 340, the sliding bracket 310, the swing lever 510 and the swing support 520 cannot continue to rotate or move relative to each other, that is, the rotating bracket 340, the sliding bracket 310, the swing lever 510 and the swing support 520 form a rigid whole, and under the drive of the first drive mechanism 400, the elastic restoring force of the second elastic piece 530 can be overcome, and the second elastic piece 530 is further deformed, so that the whole composed of the above four can continue to slide together along the sliding direction of the sliding bracket 310 to the end position of the sliding bracket 310; and when the sliding bracket 310 slides back to the starting position from the end position, the whole composed of the above four will first slide together under the drive of the first drive mechanism 400 and the second elastic piece 530, and then the swing support 520 will abut against the limiting piece 540 again, and then the swing support 520 cannot continue to slide, and in the process of the sliding bracket 310 continuing to slide to the starting position, the swing lever 510 will drive the rotating bracket 340 to rotate back to the position.

[0052] It should be understood that, considering the process of the sliding bracket 310 sliding from the taking position to the opening box position, due to the lever stroke amplification, in the process of the second suction assembly 330 driving the second paperboard part 12 to the second position and completing the opening of the box, the side edge of the second paperboard part 12 away from the first paperboard part 11 will have a movement component moving away from the opening box position, and will cause the side edge of the second paperboard part 12 to collide with the carton board 10 in the feeding device which has not been taken out, thereby causing unnecessary bending deformation of the side edge of the second paperboard part 12, thereby affecting the subsequent boxing of the product and affecting the appearance quality of the packaged product.

[0053] To solve the problems of subsequent boxing and appearance quality of the packaged product caused by the above interference collision, in one embodiment, with reference to Figure 4, the position of the limiting member 540 is set to abut against the swing support 520 when the sliding bracket 310 is in the unboxing position and the rotating bracket 340 is in the second position; and referring to Figure 3 , the swing support 520 is disengaged from the limiting member 540 when the sliding bracket 310 is in the material taking position and the rotating bracket 340 is in the first position. Thus, in the initial distance of the sliding bracket 310 sliding from the unboxing position to the material taking position, the swing support 520 can be kept abutting on the limiting member 540 under the elastic restoring force of the second elastic member 530, while the rotating bracket 340 will be driven by the swing lever 510 to rotate from the second position to the first position, and then cannot continue to rotate after the rotating bracket 340 rotates to the first position, and the rotating bracket 340, the sliding bracket 310, the swing lever 510 and the swing support 520 cannot continue to rotate or move relatively, that is, the rotating bracket 340, the sliding bracket 310, the swing lever 510 and the swing support 520 form a rigid whole, and can overcome the elastic restoring force of the second elastic member 530 under the driving of the first driving mechanism 400, and make the second elastic member 530 further deform, so that the whole composed of the above four can continue to slide together along the sliding direction of the sliding bracket 310 to the material taking position; and after the sliding bracket 310 slides to the material taking position and the first suction assembly 320 completes the suction of the first paperboard part 11 and the second suction assembly 330 completes the suction of the second paperboard part 12, the whole composed of the rotating bracket 340, the sliding bracket 310, the swing lever 510 and the swing support 520 will first slide together under the driving of the first driving mechanism 400 and the second elastic member 530, so that the first paperboard part 11 and the second paperboard part 12 can first slide together to move away from the material taking position by a distance, and then after the swing support 520 abuts against the limiting member 540 again, the swing support 520 cannot continue to slide, and in the process of the sliding bracket 310 continuing to slide to the unboxing position, the swing lever 510 will drive the rotating bracket 340 to rotate, that is, the second paperboard part 12 is rotated relative to the first paperboard part 11, and in this process, even if the side edge of the second paperboard part 12 away from the first paperboard part 11 moves in the direction away from the unboxing position due to the influence of the lever stroke amplification, since the second paperboard part 12 has been moved away from the material taking position by a distance in the direction close to the unboxing position, interference or collision between this edge of the second paperboard part 12 and the paper box board 10 in the feeding device which has not been taken away can be effectively avoided.

[0054] It can be understood that, on the basis of the above embodiment, in order to limit the continuous rotation of the rotating support 340 after the rotating support 340 is rotated from the second position to the first position, a limiting structure 311 is arranged on the sliding support 310, and the limiting structure 311 can abut against the rotating support 340 when the rotating support 340 is rotated to the first position. For example, in one of the embodiments, the rotating support 340 is arranged in an L shape, and after the rotating support 340 is rotated to the first position, one side step surface of the sliding support 310 forms the limiting structure 311 described above, and abuts against the outer side surface of the rotating support 340 opposite to the step surface.

[0055] It should be understood that the first elastic member 350 and the second elastic member 530 can be selected to be compression springs or tension springs.

[0056] It should be understood that, in one of the embodiments, in order to realize the sliding of the swing support 520 on the fixed connecting plate 100, with reference to Figure 1 and Figure 2 , the fixed connecting plate 100 is provided with a second sliding rail 110 which is perpendicular to the rotation axis of the rotating support 340 and parallel to the adsorption surface of the first adsorption assembly 320, and the second sliding rail 110 is slidably connected with a second sliding block 120, and the swing support 520 is connected to the second sliding block 120.

[0057] It should be understood that, in other embodiments, the second driving mechanism can also include a servo motor, and the rotating support 340 is driven to rotate between the first position and the second position by the servo motor.

[0058] The carton forming machine of some embodiments of the second aspect of the present application is described below, and the carton forming machine of the present embodiment includes the carton opening device of the above-mentioned embodiments of the first aspect. By using the carton opening device of the above-mentioned embodiments of the first aspect, the problem of surface damage of the carton caused by friction can be improved, and the appearance quality of the packaged product can be improved.

[0059] It should be understood that in some embodiments, the carton forming machine further comprises a carton board feeding device, a bottom long board folding device, a bottom short board folding device, and a bottom sealing device; the carton board feeding device is arranged on one side of the opening device, and the discharge side of the carton board feeding device is located at the material taking position of the suction module 300 in the opening device, so that the carton board feeding device can deliver the planar carton board 10 to the material taking position, so that the first suction assembly 320 and the second suction assembly 330 can complete the suction and taking of the carton board 10 at the position; the bottom long board folding device and the bottom short board folding device are both arranged below the opening device, and after the carton board 10 moves to the opening position to complete the opening, the bottom short board folding device is used to complete the folding of the bottom short board of the box body, and the bottom long board folding device is used to complete the folding of the bottom long board of the box body; the bottom sealing device is arranged on one side of the opening device and is used to seal the bottom of the box body.

[0060] It should be understood that the carton board feeding device, the bottom long board folding device, the bottom short board folding device, and the bottom sealing device are not related to the improvement points of the present application, and the detailed structure thereof can refer to the existing design, which will not be described in detail here.

[0061] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A box-opening device, characterized in that, include: An adsorption module includes a sliding bracket, a first adsorption component, a second adsorption component, and a rotating bracket. The first adsorption component is disposed on the sliding bracket, and the second adsorption component is located on one side of the first adsorption component and disposed on the rotating bracket. The rotating bracket is rotatably connected to the sliding bracket and can drive the second adsorption component to rotate between a first position and a second position. When in the first position, the adsorption surface of the second adsorption component is coplanar with the adsorption surface of the first adsorption component. When in the second position, the adsorption surface of the second adsorption component is perpendicular to the adsorption surface of the first adsorption component. A first driving mechanism is connected to the sliding bracket and is used to drive the sliding bracket to move between the material picking position and the box opening position; The second drive mechanism is connected to the sliding bracket and is used to drive the rotating bracket to slide between the first position and the second position; the second drive mechanism is a linkage mechanism and can transmit and convert the sliding motion of the sliding bracket into the rotation of the rotating bracket. The unpacking device includes a fixed connecting plate, and the second driving mechanism includes a swing arm and a swing support. The swing support is disposed on the fixed connecting plate, and the two ends of the swing arm are rotatably connected to the swing support and the rotating bracket, respectively. When the sliding bracket moves from the material picking position to the unpacking position, the swing arm can swing and drive the rotating bracket to rotate from the first position to the second position. When the sliding bracket moves from the unpacking position to the material picking position, the swing arm can swing and drive the rotating bracket to rotate from the second position to the first position. The second driving mechanism further includes a second elastic element and a limiting element. The swing support is slidably connected to the fixed connecting plate, and the sliding direction of the swing support is parallel to the driving direction of the first driving mechanism. The limiting element is disposed on the sliding path of the swing support. The second elastic element connects the swing support and the fixed connecting plate, and is used to provide an elastic restoring force that causes the swing support to approach and abut against the limiting element.

2. The box-opening device according to claim 1, characterized in that, The second adsorption component is slidably connected to the rotating bracket, and the sliding direction of the second adsorption component relative to the rotating bracket is perpendicular to the rotation axis of the rotating bracket and parallel to the adsorption surface of the second adsorption component.

3. The box-opening device according to claim 2, characterized in that, The adsorption module further includes a first elastic element, which connects the rotating bracket and the second adsorption assembly. The first elastic element is used to provide an elastic restoring force that causes the second adsorption assembly to slide back to the side closer to the first adsorption assembly.

4. A box-opening device according to any one of claims 1 to 3, characterized in that, The second adsorption component includes at least two universal suction nozzles, and the adsorption ends of each universal suction nozzle jointly participate in forming the adsorption surface of the second adsorption component.

5. The box-opening device according to claim 4, characterized in that, The adsorption module further includes a nozzle telescopic actuator, which is disposed on the sliding bracket and connected to the first adsorption component at its driving end, and is used to drive the first adsorption component to move in a direction perpendicular to its adsorption surface.

6. The box-opening device according to claim 1, characterized in that, When the sliding bracket is in the unpacking position and the rotating bracket is in the second position, the swing support abuts against the limiting member; and when the sliding bracket is in the material picking position and the rotating bracket is in the first position, the swing support disengages from the limiting member.

7. The box-opening device according to claim 6, characterized in that, The sliding bracket is provided with a limiting structure, which abuts against the rotating bracket when the rotating bracket rotates to the first position.

8. A carton forming machine, characterized in that, It includes the box-opening device as described in any one of claims 1 to 7.

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