Box opening device

Abstract

The utility model provides a box opening device, which relates to the technical field of packaging box opening equipment and comprises a supporting platform, a box suction component, a driving component and a box opening component are arranged on the supporting platform, and the driving component drives the box opening component to rotate relative to the box suction component through a transmission component. The transmission assembly comprises a rotating arm, a first auxiliary arm, a second auxiliary arm and a third auxiliary arm, and through the arrangement of the first swing end and the second swing end of the rotating arm, the first auxiliary arm and the third auxiliary arm, the box opening assembly moves outwards relative to the axis of a rotating shaft of the box suction assembly; the rotating shaft, rotating relative to the box suction assembly, of the box opening assembly deviates from the axis of the driving shaft to a certain degree, it is ensured that the rotating shaft, rotating relative to the box suction assembly, of the box opening assembly can deviate out of the plane where the box opening assembly and the box suction assembly are located when the box opening assembly and the box suction assembly are parallel, and in the box blank overturning and opening process, the box opening assembly cannot move relative to the first box body face; the box opening stability and the box opening success rate are ensured, and the box blank forming efficiency and the box blank forming effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging box unpacking equipment, in particular to an unpacking device. Background Art

[0002] A case packer is a device that semi-automatically or automatically packs unpackaged products or small-packaged products into transport packaging. Its working principle is to pack products into corrugated boxes, plastic boxes, pallets in a certain arrangement and quantity, and close or seal the opening of the box. According to the requirements of the case packer, it should have the functions of carton forming or opening, metering, and packing. Some are also equipped with sealing or bundling functions.

[0003] An automatic case packer is a packing device that can automatically shape and arrange the packages, load them into an open carton, and complete actions such as adhesive sealing. All actions are completed fully automatically. Most automatic case packers are modular structures, including functional units such as a case forming device, an array device, a filling device, and a case sealing device, which complete corresponding functional actions respectively, and each device is installed on the same main frame. The box blank rack of the case forming device is on the top, the filling device is directly below the case forming device, the array device is in front of the filling device, and the case sealing device is behind the filling device. PLC and touch screen control are usually used to facilitate operation and management, and reduce production personnel and labor intensity. Automatic case packers are essential equipment for automated large-scale production. The main structural forms of case packers are horizontal, vertical drop, clamping, wrapping and tray forming. At present, domestic cartoning machines can operate small boxes such as food and medicine packaging boxes, glass bottles, plastic bottles, plastic barrels, metal cans, flexible packaging bags and other packaging. It can realize the entire process of picking up box boards, box forming, bottom folding, box body transmission, product collection and packing. In the actual operation process, the picking up of box boards, box forming and bottom folding are carried out in sequence to complete the forming of the box. After the rigid packaging such as bottles and cans are collected and sorted, they are directly loaded into cartons, plastic boxes or pallets after being grabbed by the gripper of the cartoning machine in a certain quantity. If there are partitions in the carton, the packing accuracy requirements of the cartoning machine are higher. The packing of flexible packaging products generally adopts the method of box forming and material collection and filling at the same time, which can increase the packing speed. The automatic cartoning machine is equipped with auxiliary equipment such as sealing and strapping, which automatically performs sealing and strapping to complete the final process.

[0004] The purpose of the carton opener is to take the box blanks out of the box blank storage and shape them. This step is crucial and directly affects the subsequent box packing process. If the carton opener cannot shape the box blanks well, the subsequent processes will not be able to be carried out.

[0005] For example, in the Chinese patent literature, the publication number is CN217074990U, the publication date is July 29, 2022, and the name is a suction cup unpacking device for a unpacking machine, including a flange connecting plate, the flange connecting plate is connected to a robotic arm; the flange connecting plate is connected to a suction cup mounting plate through a connecting rod, and one side of the suction cup mounting plate is connected to a flap through a flip hinge; a plurality of first suction cups are fixed to the front of the suction cup mounting plate, and a plurality of second suction cups are arranged on the same side of the flap; a cylinder is rotatably installed on the back of the suction cup mounting plate through a flip support, a crank is fixed on the flap, and the piston rod end of the cylinder is rotatably connected to the crank end.

[0006] In the prior art with publication number CN217074990U, the forming of the packaging box is achieved by driving a flap connected to a flip hinge by a cylinder. The rotation axis of the flap relative to the suction cup mounting plate cannot coincide with the central axis of the short box body of the box blank relative to the long box body. There is a certain distance between the two axes. When the flap drives the short box body to flip around the long box body, the suction cup on the flap will produce a certain displacement relative to the short box body due to the misalignment of the rotation axis with the central axis on the box blank, resulting in poor forming effect of the box blank. Utility Model Content

[0007] In order to solve the deficiencies of the above-mentioned prior art, the utility model provides a carton opening device, which realizes the coincidence of the axis of rotation of the short side of the box blank relative to the long side and the axis of rotation of the carton opening assembly relative to the box suction assembly, thereby avoiding displacement of the carton opening assembly relative to the short box body and affecting the box blank forming effect when the axes do not coincide.

[0008] In order to achieve the above utility model purpose, the technical solution of the utility model is as follows:

[0009] A box opening device, characterized in that it includes a supporting platform, on which a box suction assembly, a driving assembly and a box opening assembly are arranged, and the driving assembly drives the box opening assembly to rotate relative to the box suction assembly through a transmission assembly, characterized in that the transmission assembly includes a rotating arm, a first auxiliary arm, a second auxiliary arm and a third auxiliary arm, the rotating arm is connected to the driving shaft of the driving assembly, one end of the first auxiliary arm is axially connected to the box opening assembly, the other end of the first auxiliary arm is axially connected to one end of the second auxiliary arm, the first swing end of the rotating arm is axially connected to the first auxiliary arm, the other end of the second auxiliary arm is axially connected to the supporting platform, and one end of the third auxiliary arm is axially connected to the first auxiliary arm. The first end of the third auxiliary arm is axially connected to the unpacking assembly, and the other end of the third auxiliary arm is axially connected to the second swing end of the rotating arm; the projections of the axis I of the first auxiliary arm and the rotating arm, the axis II of the first auxiliary arm and the unpacking assembly, the axis III of the third auxiliary arm and the unpacking assembly, and the axis IV of the third auxiliary arm and the rotating arm on the horizontal plane are connected in sequence to form a parallelogram I; the projections of the axis I of the first auxiliary arm and the rotating arm, the axis V of the drive shaft, the axis VI of the second auxiliary arm and the supporting platform, and the axis VII of the second auxiliary arm and the first auxiliary arm on the horizontal plane are connected in sequence to form a parallelogram II.

[0010] Furthermore, the driving assembly includes a driving motor and a driving shaft, the driving shaft passes through the supporting platform, one end of the driving shaft is connected to the output shaft of the driving motor, and the other end of the driving shaft is connected to the rotating arm.

[0011] Furthermore, the driving assembly includes a stroke cylinder, a swing arm and a driving shaft. The stroke cylinder is fixed on the supporting platform. The piston rod of the stroke cylinder is axially connected to the first swing end of the swing arm. The second swing end of the swing arm is fixedly connected to one end of the driving shaft. The other end of the driving shaft is connected to the rotating arm.

[0012] Furthermore, the unpacking assembly includes an unpacking installation plate and a first suction cup, and the first suction cup penetrates and is fixed on the unpacking installation plate.

[0013] Furthermore, a connecting plate is mounted on the unpacking installation plate, one end of the first auxiliary arm is axially connected to one end of the connecting plate, and one end of the third auxiliary arm is axially connected to the other end of the connecting plate.

[0014] Furthermore, a through hole is provided on the unpacking installation plate for the first suction cup suction port to penetrate into the unpacking installation plate, and the diameter of the through hole is larger than the diameter of the first suction cup suction port.

[0015] Furthermore, the unpacking installation plate is provided with three through holes on the upper portion and two through holes on the lower portion, and the number of the through holes corresponds to the number of the first suction cups.

[0016] Furthermore, the suction box assembly includes a mounting frame, a plurality of suction cup mounting plates and a plurality of second suction cups, the mounting frame is fixed on the supporting platform, the suction cup mounting plates are assembled on the suction box mounting frame, and the second suction cups penetrate and are fixed on the suction cup mounting plates.

[0017] Furthermore, the projection of the drive shaft axis V on the horizontal plane is located within the parallelogram I.

[0018] Furthermore, the driving assembly drives the box opening assembly to rotate 90° relative to the box suction assembly through the transmission assembly.

[0019] The working principle of the utility model is as follows:

[0020] By setting the first swing end, the second swing end, the first auxiliary arm and the third auxiliary arm of the rotating arm, the rotation axis center of the box opening component relative to the box suction component is moved outward, so that the rotation axis of the box opening component relative to the box suction component and the axis of the driving shaft are offset to a certain extent, ensuring that the rotation axis of the box opening component relative to the box suction component can be offset to the outside of the plane where the box opening component and the box suction component are parallel, and coincide with the connecting line of the two adjacent box bodies to be opened. When the box opening component absorbs the first box body surface and rotates relative to the second box body surface, the rotation axis center of the box opening component relative to the box suction component coincides with the connecting line between the first box body surface and the second box body surface. In the process of flipping and opening the box blank, the box opening component will not move relative to the first box body surface, ensuring the stability of the box opening and the success rate of the box opening, and improving the box blank forming efficiency and box blank forming effect.

[0021] The beneficial effects of the utility model are as follows:

[0022] By setting the first swing end, the second swing end, the first auxiliary arm and the third auxiliary arm of the rotating arm, the axis center of the rotation axis of the unpacking component relative to the box suction component is moved outward, so that the rotation axis of the unpacking component relative to the box suction component and the axis of the driving shaft are offset to a certain extent, ensuring that the rotation axis of the unpacking component relative to the box suction component can be offset to the outside of the plane where the unpacking component and the box suction component are parallel, and coincide with the connection line of the two adjacent box bodies of the box blank to be opened. In the process of flipping and opening the box blank, the unpacking component will not move relative to the first box body surface, ensuring the stability of unpacking and the success rate of unpacking, thereby improving the efficiency and effect of box blank forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of the utility model;

[0024] Figure 2 This is another structural schematic diagram of the utility model;

[0025] Figure 3 It is a bottom schematic diagram of the utility model.

[0026] Figure markings: 1-support platform, 2-rotating arm, 3-first auxiliary arm, 4-second auxiliary arm, 5-third auxiliary arm, 6-axis I, 7-axis II, 8-axis III, 9-axis IV, 10-axis V, 11-axis VI, 12-axis VII, 13-drive motor, 14-stroke cylinder, 15-swing arm, 16-unpacking installation plate, 17-first suction cup, 18-through hole, 19-connecting plate, 20-mounting frame, 21-suction cup mounting plate, 22-second suction cup. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings of the utility model specification to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1-Figure 3 As shown, a box opening device comprises a supporting platform 1, on which a box suction assembly, a driving assembly and a box opening assembly are arranged, the driving assembly drives the box opening assembly to rotate relative to the box suction assembly through a transmission assembly, the transmission assembly comprises a rotating arm 2, a first auxiliary arm 3, a second auxiliary arm 4 and a third auxiliary arm 5, the rotating arm 2 is connected to the driving shaft of the driving assembly, one end of the first auxiliary arm 3 is axially connected to the box opening assembly, the other end of the first auxiliary arm 3 is axially connected to one end of the second auxiliary arm 4, the first swing end of the rotating arm 2 is axially connected to the first auxiliary arm 3, the other end of the second auxiliary arm 4 is axially connected to the supporting platform 1, one end of the third auxiliary arm 5 is axially connected to the box opening assembly, and the other end of the third auxiliary arm 5 is axially connected to the rotating arm The second swing end of the arm 2 is pivotally connected; the axis I6 of the first auxiliary arm 3 and the rotating arm 2, the axis II7 of the first auxiliary arm 3 and the unpacking assembly, the axis III8 of the third auxiliary arm 5 and the unpacking assembly, and the projection of the axis IV9 of the third auxiliary arm 5 and the rotating arm 2 on the horizontal plane are connected in sequence to form a parallelogram I; the axis I6 of the first auxiliary arm 3 and the rotating arm 2, the drive shaft axis V10, the axis VI11 of the second auxiliary arm 4 and the supporting platform 1, and the projection of the axis VII12 of the second auxiliary arm 4 and the first auxiliary arm 3 on the horizontal plane are connected in sequence to form a parallelogram II; the projection of the drive shaft axis V10 on the horizontal plane is located within the parallelogram I.

[0030] The rotating arm 2 drives the first auxiliary arm 3 axially connected to the first swinging end of the rotating arm 2 and the third rotating arm 2 axially connected to the second swinging end of the rotating arm 2 to move, and the first auxiliary arm 3 drives the second auxiliary arm 4 axially connected to the first auxiliary arm 3 to move, so as to move the rotation axis of the unpacking component relative to the box suction component outward, so that the rotation axis of the unpacking component relative to the box suction component and the axis of the driving shaft are offset to a certain extent, ensuring that the rotation axis of the unpacking component relative to the box suction component can be offset to the outside of the plane where the unpacking component and the box suction component are parallel, and coincide with the connecting line of the two adjacent box bodies of the box blank to be opened, and when the unpacking component absorbs the first box body surface and rotates relative to the second box body surface, the rotation axis of the unpacking component relative to the box suction component coincides with the connecting line between the first box body surface and the second box body surface, and in the process of flipping and opening the box blank, the unpacking component will not move relative to the first box body surface, ensuring the stability of unpacking and the success rate of unpacking, and improving the box blank forming efficiency and box blank forming effect.

[0031] During implementation, a second auxiliary arm 4 is added, and projections of the axis I6 of the first auxiliary arm 3 and the rotating arm 2, the axis V10 of the drive shaft, the axis VI11 of the second auxiliary arm 4 and the supporting platform 1, and the axis VII12 of the second auxiliary arm 4 and the first auxiliary arm 3 on the horizontal plane are sequentially connected to form a parallelogram II, which coordinates the movements of the first swing end, the second swing end, the first auxiliary arm 3 and the third auxiliary arm 5 of the rotating arm 2, thereby improving the stability of the entire unpacking device during operation.

[0032] Example 2

[0033] This embodiment further elaborates and supplements the implementation method of the utility model on the basis of Embodiment 1.

[0034] As an implementation method of this embodiment, Figure 1 As shown, the driving assembly includes a driving motor 13 and a driving shaft, the driving shaft passes through the supporting platform 1, and one end of the driving shaft is connected to the output shaft of the driving motor 13, and the other end of the driving shaft is connected to the rotating arm 2. The driving motor 13 can be a servo motor, which can achieve precise control at any position, speed and torque, and has good high-speed performance and strong overload resistance.

[0035] As another implementation method of this embodiment, Figure 2 As shown, the driving assembly includes a stroke cylinder 14, a swing arm 15 and a driving shaft, the stroke cylinder 14 is fixed on the supporting platform 1, the piston rod of the stroke cylinder 14 is axially connected to the first swing end of the swing arm 15, the second swing end of the swing arm 15 is fixedly connected to one end of the driving shaft, and the other end of the driving shaft is connected to the rotating arm 2. The stroke cylinder 14 can provide a large thrust and pull, and the torque can be controlled by adjusting the air pressure.

[0036] Example 3

[0037] This embodiment further elaborates and supplements the implementation method of the utility model on the basis of Embodiment 1 or Embodiment 2.

[0038] As an implementation method of this embodiment, Figure 1-Figure 2 As shown, the unpacking assembly includes an unpacking mounting plate 16 and a first suction cup 17, wherein the first suction cup 17 penetrates and is fixed on the unpacking mounting plate 16; a connecting plate 19 is mounted on the unpacking mounting plate 16, one end of the first auxiliary arm 3 is axially connected to one end of the connecting plate 19, and one end of the third auxiliary arm 5 is axially connected to the other end of the connecting plate 19. The stability of the axial connection between the unpacking mounting plate 16 and the first auxiliary arm 3 and the third auxiliary arm 5 is improved by adding the connecting plate 19.

[0039] As another implementation method of this embodiment, Figure 1-Figure 2 As shown, the unpacking installation plate 16 is provided with a through hole 18 for the suction port of the first suction cup 17 to penetrate into the unpacking installation plate 16 , and the aperture of the through hole 18 is larger than the aperture of the suction port of the first suction cup 17 .

[0040] As another implementation method of this embodiment, Figure 1-Figure 2 As shown, the unpacking installation plate 16 is provided with three through holes 18 on the upper portion and two through holes 18 on the lower portion, and the number of the through holes 18 corresponds to the number of the first suction cups 17 .

[0041] As another implementation method of this embodiment, Figure 3 As shown, the suction box assembly includes a mounting frame 20, a plurality of suction cup mounting plates 21 and a plurality of second suction cups 22. The mounting frame 20 is fixed on the supporting platform 1, the suction cup mounting plates 21 are assembled on the suction box mounting frame 20, and the second suction cups 22 penetrate and are fixed on the suction cup mounting plates 21.

[0042] During implementation, the driving component drives the rotating arm 2 to rotate, and the rotating arm 2 drives the first auxiliary arm 3 axially connected to the first swing end of the rotating arm 2 and the third rotating arm 2 axially connected to the second swing end of the rotating arm 2 to move, and the first auxiliary arm 3 drives the second auxiliary arm 4 axially connected to the first auxiliary arm 3 to move, so that the rotation axis of the unpacking component relative to the box suction component is moved outward, so that the rotation axis of the unpacking component relative to the box suction component and the axis of the driving shaft are offset to a certain extent, ensuring that the rotation axis of the unpacking component relative to the box suction component can be offset to the outside of the plane where the unpacking component and the box suction component are parallel, and coincide with the connecting line of the two adjacent box bodies of the box blank to be opened, when the unpacking component absorbs the first box body surface and rotates relative to the second box body surface, the rotation axis of the unpacking component relative to the box suction component coincides with the connecting line of the first box body surface and the second box body surface, in the process of flipping and opening the box blank, the unpacking component will not move relative to the first box body surface, ensuring the stability of unpacking and the success rate of unpacking, and improving the box blank forming efficiency and box blank forming effect.

[0043] Example 4

[0044] This embodiment further elaborates and supplements the implementation method of the utility model on the basis of Embodiment 1, Embodiment 2 or Embodiment 3.

[0045] As an implementation method of this embodiment, Figure 3 As shown, the projection of the driving shaft axis V10 on the horizontal plane is located within the parallelogram I, so that the assembly of the first auxiliary arm 3 and the third auxiliary arm 5 is more compact.

[0046] As another implementation of this embodiment, the driving assembly drives the box opening assembly to rotate 90° relative to the box suction assembly through the transmission assembly.

Claims

1. A box opening device, characterized in that: The invention comprises a support platform (1), on which a box suction component, a driving component and a box opening component are arranged, and the driving component drives the box opening component to rotate relative to the box suction component through the transmission component, and is characterized in that: the transmission component comprises a rotating arm (2), a first auxiliary arm (3), a second auxiliary arm (4) and a third auxiliary arm (5), the rotating arm (2) is connected to the driving shaft of the driving component, one end of the first auxiliary arm (3) is axially connected to the box opening component, and the other end of the first auxiliary arm (3) is axially connected to one end of the second auxiliary arm (4), the first swing end of the rotating arm (2) is axially connected to the first auxiliary arm (3), and the other end of the second auxiliary arm (4) is axially connected to the support platform (1), one end of the third auxiliary arm (5) is axially connected to the box opening component, and the third auxiliary arm (5) is axially connected to the first auxiliary arm (3). The other end is axially connected to the second swing end of the rotating arm (2); the projections of the axis I (6) of the first auxiliary arm (3) and the rotating arm (2), the axis II (7) of the first auxiliary arm (3) and the unpacking assembly, the axis III (8) of the third auxiliary arm (5) and the unpacking assembly, and the axis IV (9) of the third auxiliary arm (5) and the rotating arm (2) on the horizontal plane are connected in sequence to form a parallelogram I; the projections of the axis I (6) of the first auxiliary arm (3) and the rotating arm (2), the axis V (10) of the drive shaft, the axis VI (11) of the second auxiliary arm (4) and the supporting platform (1), and the axis VII (12) of the second auxiliary arm (4) and the first auxiliary arm (3) on the horizontal plane are connected in sequence to form a parallelogram II.

2. A box opening device according to claim 1, characterized in that: The driving assembly comprises a driving motor (13) and a driving shaft, wherein the driving shaft passes through the supporting platform (1), one end of the driving shaft is connected to the output shaft of the driving motor (13), and the other end of the driving shaft is connected to the rotating arm (2).

3. A box opening device according to claim 1, characterized in that: The driving assembly comprises a stroke cylinder (14), a swing arm (15) and a driving shaft, wherein the stroke cylinder (14) is fixed on the supporting platform (1), the piston rod of the stroke cylinder (14) is axially connected to a first swing end of the swing arm (15), the second swing end of the swing arm (15) is fixedly connected to one end of the driving shaft, and the other end of the driving shaft is connected to the rotating arm (2).

4. A box opening device according to any one of claims 1 to 3, characterized in that: The unpacking assembly comprises an unpacking installation plate (16) and a first suction cup (17), wherein the first suction cup (17) penetrates through and is fixed on the unpacking installation plate (16).

5. A box opening device as claimed in claim 4, characterized in that: The unpacking installation plate (16) is equipped with a connecting plate (19), one end of the first auxiliary arm (3) is axially connected to one end of the connecting plate (19), and one end of the third auxiliary arm (5) is axially connected to the other end of the connecting plate (19).

6. A box opening device as claimed in claim 4, characterized in that: The unpacking installation plate (16) is provided with a through hole (18) for the suction port of the first suction cup (17) to penetrate into the unpacking installation plate (16), and the diameter of the through hole (18) is larger than the diameter of the suction port of the first suction cup (17).

7. A box opening device according to claim 6, characterized in that: The unpacking installation plate (16) is provided with three through holes (18) at the top and two through holes (18) at the bottom, and the number of the through holes (18) corresponds to the number of the first suction cups (17).

8. A box opening device according to any one of claims 1 to 3, characterized in that: The suction box assembly comprises a mounting frame (20), a plurality of suction cup mounting plates (21) and a plurality of second suction cups (22); the mounting frame (20) is fixed on the support platform (1); the suction cup mounting plates (21) are mounted on the suction box mounting frame (20); and the second suction cups (22) penetrate through and are fixed on the suction cup mounting plates (21).

9. A box opening device according to any one of claims 1 to 3, characterized in that: The projection of the drive shaft axis V (10) on the horizontal plane is located within the parallelogram I.

10. A box opening device according to any one of claims 1 to 3, characterized in that: The driving assembly drives the box opening assembly to rotate 90 degrees relative to the box suction assembly through the transmission assembly.

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