Packaging equipment

Abstract

The present invention discloses a packaging device, which includes a turntable, a loading rack, an unloading rack, a driving device, a film winding device and a vertical tape threading machine. The loading rack, the turntable and the unloading rack are sequentially arranged along a straight-line trajectory. The film winding device and the vertical tape threading machine are respectively located on both sides of the straight-line trajectory, and the vertical tape threading machine is located beside the turntable. The turntable has a middle dividing plane passing through the center of the turntable and perpendicular to the straight-line trajectory. The film winding device is located on the side of the middle dividing plane facing the loading rack, and a working area for an operator to work is enclosed among the film winding device, the turntable and the unloading rack; or the film winding device is located on the side of the middle dividing plane facing the unloading rack, and a working area for an operator to work is enclosed among the film winding device, the turntable and the loading rack. The beneficial effects of the present invention are as follows: The operator can complete multiple packaging operation processes at one station, improving the work efficiency, reducing the personnel configuration, and saving the production space and cost; there is no need to set a corner protection fixing device, simplifying the structure of the packaging device.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and particularly to a packaging equipment. Background Art

[0002] With the increasing development of the logistics industry, the demand for automated equipment operation has become more prominent. In daily life, in order to prevent the goods being transported from being damaged during transportation, corner guards are usually placed at the corners of the packing box, a protective film is wound around the outside of the packing box, and packing tapes are bundled vertically and horizontally to enhance the strength of the package. In addition, the "grid" packing tapes formed by simultaneously setting a protective film and horizontally and vertically arranged packing tapes on the outside of the packing box can also reduce the risk of goods theft.

[0003] In the prior art, placing corner guards at the corners of the packing box, winding the protective film around the outside of the packing box, and bundling the packing tapes are carried out separately and independently. That is, the corner guards are first placed at the corners of the packing box and fixed with a fixing device, then the protective film is wound at the film winding station, and then the packing box is respectively transported to the horizontal strapping station and the vertical strapping station for bundling the packing tapes. This existing solution requires a long packing conveyor belt so that there are multiple stations for placing various machines to achieve various operation processes. The existing packing production line occupies a large production space, and a fixing device for fixing the corner guards needs to be set, making the structure of the packaging equipment more complex, seriously consuming more manpower, time and production costs, and seriously affecting the production efficiency. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a packaging equipment, which can conveniently and quickly set corner guards, protective films and packing tapes on the outside of the package.

[0005] The purpose of the present invention is achieved by adopting the following technical solutions:

[0006] Provide a packaging equipment, including a turntable for carrying the package, a loading rack for transporting the package onto the turntable, an unloading rack for discharging the package from the turntable, a driving device for driving the turntable to rotate, a film winding device for winding a protective film on the package, and a vertical tape threading machine for vertically winding a first packing tape on the package. The loading rack, the turntable and the unloading rack are arranged in sequence along a straight line trajectory. The film winding device and the vertical tape threading machine are respectively located on both sides of the straight line trajectory. The vertical tape threading machine is located beside the turntable. The turntable has a middle dividing plane passing through the center of the turntable and perpendicular to the straight line trajectory.

[0007] The film winding device is located on one side of the central plane facing the loading rack, and a working area for the operator is enclosed among the film winding device, the turntable and the unloading rack; or, the film winding device is located on one side of the central plane facing the unloading rack, and a working area for the operator is enclosed among the film winding device, the turntable and the loading rack.

[0008] Preferably, the vertical tape threading machine includes a first frame disposed beside the turntable, a first tape reel mounting rack mounted on the first frame for placing the first packaging tape, a first guiding and traction assembly disposed on the first frame for guiding and leading the first packaging tape above and to the side of the workpiece to be packaged, and a sword threading mechanism disposed on the first frame for pushing the movable end of the first packaging tape below the workpiece to be packaged.

[0009] Preferably, the first frame includes a vertical support rod beside the turntable, a first horizontal support rod extending away from the turntable from the vertical support rod and disposed near the bottom end of the vertical support rod, and a second horizontal support rod extending from the top end of the vertical support rod above the turntable. The tape reel mounting rack is located above the first horizontal support rod, and the first tape reel mounting rack is connected to the vertical support rod and / or the first horizontal support rod. The first guiding assembly is disposed on the second horizontal support rod or on the second horizontal support rod and the vertical support rod, and the sword threading mechanism is mounted on the first horizontal support rod.

[0010] Preferably, a first limiting groove for the first packaging tape to pass through and slide is provided on the side of the vertical support rod facing the turntable. A second limiting groove communicating with the first limiting groove is provided at the bottom of the second horizontal support rod for the first packaging tape to pass through and slide.

[0011] Preferably, the first guiding and traction assembly includes a traction wheel mounted at the bottom of the second horizontal support rod for pulling the first packaging tape to move, a motor mounted on the second horizontal support rod and drivingly connected to the traction wheel for driving the traction wheel to rotate, a pressure wheel mounted at the bottom of the second horizontal support rod and spaced below the traction wheel for pressing the first packaging tape onto the traction wheel, and a reversing wheel mounted at the end of the second horizontal support rod away from the vertical support rod for guiding the first packaging tape from above the second horizontal support rod between the pressure wheel and the traction wheel.

[0012] Preferably, the packaging equipment further includes a horizontal tape threading machine for horizontally winding a second packaging tape around the workpiece to be packaged. The horizontal tape threading machine and the vertical tape threading machine are on the same side of the linear track, and the horizontal tape threading machine is disposed beside the unloading rack.

[0013] Preferably, the horizontal tape threading machine includes a second frame disposed beside the blanking rack, a second tape reel mounting rack mounted on the second frame for placing the second packaging tape, a lifting bracket slidably mounted on the second frame for driving the second packaging tape to move up and down along the height direction of the packaged item, a second guiding and traction assembly disposed on the lifting bracket or on the second frame and the lifting bracket for guiding and leading the second packaging tape to the circumferential direction of the packaged item, and a lifting balance mechanism disposed on the second frame for driving the lifting bracket to move up and down.

[0014] Preferably, the second bracket includes a first fixing plate parallel to the ground and a second fixing plate vertically mounted on the first fixing plate. The second tape reel mounting rack is mounted on the first fixing plate, the lifting bracket is mounted on the second fixing plate, and the lifting balance mechanism is mounted on the second fixing plate and connected to the lifting bracket.

[0015] Preferably, the lifting bracket includes a first support rod parallel to the second fixing plate, second support rods and third support rods extending from both ends of the first support rod away from the second fixing plate. A third limiting groove for the second packaging tape to pass through and slide is provided on one side of the second support rod facing the packaged item, a fourth limiting groove for the second packaging tape to pass through and slide is provided on one side of the first support rod facing the packaged item, and a fifth limiting groove for the second packaging tape to pass through and slide is provided on one side of the third support rod facing the packaged item; and / or,

[0016] A sliding rod and a fixed pulley are provided on the second fixing plate. Both sides of the lifting balance mechanism are connected to the sliding rod through linear bearings and the lifting balance mechanism can slide on the sliding rod. The lifting bracket and the lifting balance mechanism are connected by a rope. One end of the rope is fixed on the lifting bracket, and the other end bypasses the fixed pulley and is fixed on the lifting balance mechanism.

[0017] Preferably, the film winding device includes a column and a film winding cylinder rack mounted on the column. An elevating drive mechanism for driving the film winding cylinder rack to slide up and down along the height direction of the packaged item is provided inside the column, and a mounting shaft for mounting the protective film is provided on the film winding cylinder rack.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1) The loading rack, unloading rack, film wrapping device and vertical tape threading machine are arranged along the turntable. A working area for the operator to work is enclosed between the film wrapping device, turntable and unloading rack, or a working area for the operator to work is enclosed between the film wrapping device, turntable and loading rack. This enables the operator to complete the operations of placing corner guards, film wrapping and strapping at one station, improving work efficiency, reducing personnel allocation, saving production space and production costs.

[0020] 2) The film wrapping device is arranged on one side of the mid-plane of the turntable facing the loading rack or the film wrapping device is located on one side of the mid-plane of the turntable facing the unloading rack, so that there is enough space between the film wrapping device, turntable and unloading rack or between the film wrapping device, turntable and loading rack to form a working area for the operator. This working area can be used for the operator to cut the packaging tape and tie the packaging tape into a knot, and is also convenient for the operator to place corner guards. Specifically, when the operator places the corner guard in the working area, first fix one side of the corner guard. After the operator safely exits, the turntable rotates to fix the other side of the corner guard. With this arrangement, there is no need to set up a corner guard fixing device, simplifying the structure of the packaging equipment and ensuring the safety of the operator to avoid being entangled by the protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the packaging equipment from the first perspective of a preferred embodiment of the present invention.

[0022] Figure 2 It is a schematic structural diagram of the packaging equipment from the second perspective of a preferred embodiment of the present invention.

[0023] Figure 3 It is a schematic structural diagram of the film wrapping device of a preferred embodiment of the present invention.

[0024] Figure 4 It is a schematic structural diagram of the vertical tape threading machine from the first perspective of a preferred embodiment of the present invention.

[0025] Figure 5 It is a schematic structural diagram of the vertical support rod, second transverse support rod and third guide block of a preferred embodiment of the present invention.

[0026] Figure 6 It is a schematic structural diagram of the third guide block of a preferred embodiment of the present invention.

[0027] Figure 7 It is a schematic structural diagram of the first perspective of the first guiding and traction assembly of a preferred embodiment of the present invention with the guide wheel removed.

[0028] Figure 8 It is a schematic structural diagram of the second perspective of the first guiding and traction assembly of a preferred embodiment of the present invention with the guide wheel removed.

[0029] Figure 9 The structural schematic diagram of the first perspective of the horizontal tape threading machine according to a preferred embodiment of the present invention.

[0030] Figure 10 The structural schematic diagram of the second perspective of the horizontal tape threading machine according to a preferred embodiment of the present invention. Detailed implementation manners

[0031] Next, in combination with the accompanying drawings and the detailed implementation manners, the present invention will be further described. It should be noted that, on the premise of no conflict, any combination of the following-described embodiments or technical features can form a new embodiment.

[0032] As Figure 1 and Figure 2 shown, a packaging device is provided, including a turntable 20 for carrying the workpiece to be packaged 10, a driving device (not shown in the figure) for driving the turntable 20 to rotate, a film winding device 50 for winding a protective film 40 around the workpiece to be packaged 10, a vertical tape threading machine 60 for vertically winding a first packaging tape around the workpiece to be packaged 10, a loading rack 80 for conveying the workpiece to be packaged 10 onto the turntable 20, and an unloading rack 90 for discharging the workpiece to be packaged 10 from the turntable 20. The loading rack 80, the turntable 20, and the unloading rack 90 are arranged in sequence along a straight-line trajectory. The film winding device 50 and the vertical tape threading machine 60 are respectively located on both sides of the straight-line trajectory. The vertical tape threading machine 60 is located beside the turntable 20. The turntable 20 has a central dividing plane passing through the center of the turntable 20 and perpendicular to the straight-line trajectory. The film winding device 50 is located on the side of the central dividing plane facing the loading rack 80. A working area for an operator to operate is enclosed among the film winding device 50, the turntable 20, and the unloading rack 90; or the film winding device 50 is located on the side of the central dividing plane facing the unloading rack 90, and a working area for an operator to operate is enclosed among the film winding device 50, the turntable 20, and the loading rack 80. The driving device drives the turntable 20 to rotate, thereby driving the workpiece to be packaged 10 to rotate. The film winding device 50 is started, and the film winding device 50 winds the protective film 40 around the circumference of the workpiece to be packaged 10. During the film winding process, when the corner of the workpiece to be packaged 10 turns into the range of the working area, the operator can place an L-shaped corner protector (not shown in the figure) on the workpiece to be packaged 10 and fix the corner protector by the tension of the protective film. After placing the corner protector and finishing film winding, the vertical tape threading machine 60 is started again to vertically wind the first packaging tape on the top and side of the workpiece to be packaged 10. The workpiece to be packaged 10 only needs to be pushed to the turntable 20, and the processes of placing the corner protector, covering the protective film, and setting the vertical packaging tape can be completed, saving the trouble of moving the workpiece to be packaged 10 to different operating stations multiple times, saving production space, reducing the number of operators, and saving production costs.

[0033] Preferably, the driving device includes a motor and a transmission mechanism. The motor is drivingly connected to the turntable 20 through the transmission mechanism to drive the turntable 20 to rotate. In this embodiment, the transmission mechanism can be a belt transmission mechanism, a chain transmission mechanism or a rack and pinion transmission mechanism. Preferably, it is more economical to use a belt transmission mechanism or a chain transmission mechanism. The turntable 20, the loading rack 80 and the unloading rack 90 are provided with a plurality of rollers for easily pushing the packaged parts 10 to different stations.

[0034] As Figure 1 and Figure 3 shown, preferably, the film winding device 50 includes a column 51 with an electrical control system built therein and a film winding cylinder rack 52 mounted on the column 51. The electrical control system includes a film out control system for controlling film out or stopping film out and a lifting control system for controlling the movement of the film winding cylinder rack 52 along the axial direction of the column 51. An lifting drive mechanism for driving the film winding cylinder rack 52 to move up and down along the height direction of the packaged part 10 is provided in the column 51. The column 51 is provided with a guide groove 511 for the up and down movement of the film winding cylinder rack 52. The film winding cylinder rack 52 moves up and down along the column 51, and can wind the protective film 40 around the outside of the packaged part 10 from top to bottom or from bottom to top. The film winding cylinder rack 52 includes a support frame 521 connected to the column 51 and a mounting shaft 522 connected to the support frame 521 for mounting the protective film 40. The support frame 521 is inserted into the guide groove 511 and is connected to the electrical control system in the column 51. The support frame 521 includes a film out auxiliary structure 523 for assisting in controlling the film out speed. The film out auxiliary structure 523 includes a plurality of rollers 5231. The protective film 40 passes through the plurality of rollers 5231 in a crossed manner. When the film out stops, the film out auxiliary structure 523 can assist in slowing down the speed at which the protective film 40 is pulled out, so as to prevent the protective film 40 from being pulled out too long and causing waste.

[0035] Preferably, while the film winding device 50 winds the film, the operator can complete the operation of placing the L-shaped corner protectors within the working area. When the film winding device 50 is started, the protective film 40 is wound around the outer side of the packaged item 10. During the film winding process, the operator places the L-shaped corner protectors at the edges of the packaged item 10. One side of the L-shaped corner protector is fixed by the tension of the protective film 40. As the turntable 20 rotates, the other side of the L-shaped corner protector is fixed by the protective film 40. The above steps are repeated until L-shaped corner protectors are installed at all the edges of the packaged item 10. It should be noted that within the range of the working area, the operator can not only fix the L-shaped corner protectors by the tension of the protective film 40, but also timely withdraw from the rotation range of the turntable 20, thus solving the safety problem that the operator may be entangled by the protective film. Of course, as another preferred embodiment of the present invention, the packaging equipment can be additionally provided with mechanisms for automatically cutting the packaging tape and tying knots in the packaging tape. In this way, a device for automatically placing L-shaped corner protectors, such as a manipulator for automatically placing L-shaped corner protectors, can be set within the working area, which can further improve the mechanization and intelligence of the packaging operation.

[0036] As Figure 1 and Figure 4 shown, preferably, the vertical tape threading machine 60 includes a first frame 61, a first tape reel mounting bracket 62, a first guiding and traction assembly 63 and a sword threading mechanism 64. The first frame 61 is arranged beside the turntable 20. The first tape reel mounting bracket 62 is installed on the first frame 61. The first packaging tape is placed on the first tape reel mounting bracket 62. The first guiding and traction assembly 63 is arranged on the first frame 61 to guide and direct the first packaging tape above and to the side of the packaged item 10. The sword threading mechanism 64 is arranged on the first frame 61 and close to the bottom of the packaged item 10. The sword threading mechanism 64 includes a pushing rod 641 and a power mechanism (not shown in the figure). The power mechanism can be a combination of a motor and a connecting rod transmission pair, or a combination of a motor and a rack and pinion, or a cylinder or a hydraulic cylinder. The power mechanism is connected to the pushing rod 641 to push the pushing rod 641 to the bottom of the packaged item 10. The pushing rod 641 can push the movable end of the first packaging tape to the bottom of the packaged item 10. The sword threading mechanism 64 is in communication connection with the first guiding and traction assembly 63. Before the first guiding and traction assembly 63 is ready to feed the tape, the sword threading mechanism 64 receives the corresponding signal and first moves to the bottom of the packaged item 10. It should be noted that a pallet 30 is provided at the bottom of the packaged item 10. The sword threading mechanism 64 passes through between the pallets 30 and pushes the first packaging tape to the bottom of the packaged item 10. The operator pulls the movable end of the first packaging tape from the bottom of the packaged item 10 upwards to the top of the packaged item 10, cuts the first packaging tape with a knotting mechanism (not shown in the figure), and fuses and bonds the two ends of the first packaging tape at a node to complete the bundling process of the first packaging tape vertically arranged for the packaged item.

[0037] Preferably, the first frame 61 includes a vertical rod 611, a first horizontal rod 612, and a second horizontal rod 613. The vertical rod 611 is located beside the turntable 20. The first horizontal rod 612 extends from the vertical rod 611 away from the turntable 20 and is close to the bottom end of the vertical rod 611. The pushing rod 641 is movably arranged on the first horizontal rod 612. In the present invention, the first horizontal rod 612 is recessed with a receiving groove 6121 for receiving the pushing rod 641. The distance between the first horizontal rod 612 and the ground is greater than the height of the turntable 20 to ensure that the sword-piercing mechanism 64 can pass through between the pallets 30 of the packaged items 10. The first tape reel mounting bracket 62 is located above the first horizontal rod 612. The first tape reel mounting bracket 62 includes a fixing plate 621 and a tape reel mounting shaft 622. The fixing plate 621 can be fixedly connected to the vertical rod 611 or fixedly connected to the first horizontal rod 612. The tape reel mounting shaft 622 is fixed to one end of the fixing plate 621 away from the vertical rod 611 or the first horizontal rod 612, and the tape reel mounting shaft 622 is perpendicular to the fixing plate 621. The tape reel 65 is mounted on the tape reel mounting shaft 622. The second horizontal rod 613 extends from the top end of the vertical rod 611 in a direction perpendicular to the vertical rod 611 above the turntable 20. The first guiding and pulling assembly 63 is arranged on the second horizontal rod 613, or the first guiding and pulling assembly 63 can be arranged on both the second horizontal rod 613 and the vertical rod 611 at the same time.

[0038] On one side of the vertical support rod 611 facing the turntable 20, there is a first limiting groove (not shown in the figure) for the first packaging tape to pass through and slide. At the bottom of the second horizontal support rod 613, there is a second limiting groove (not shown in the figure) communicating with the first limiting groove for the first packaging tape to pass through and slide. The vertical support rod 611 includes a vertical support rod body and a first elastic piece. The vertical support rod body and the first elastic piece are combined to enclose the first limiting groove. One end of the first elastic piece is connected to the vertical support rod body, and the other end is a movable end. The second horizontal support rod 613 includes a second horizontal support rod body and a second elastic piece. The second horizontal support rod body and the second elastic piece are combined to form the second limiting groove. One end of the second elastic piece is connected to the second horizontal support rod body, and the other end is a movable end. The sword threading mechanism 64 includes a first guide block 66 and a second guide block 67. The first guide block 66 and the second guide block 67 are respectively located at both ends of the sword threading mechanism 64. When the sword threading mechanism 64 extends to the bottom of the package 10, the first guide block 66 is located at the intersection of the sword threading mechanism 64 and the second limiting groove, and the second guide block 67 is located at the end where the sword threading mechanism 64 passes through the package 10. The movable end of the first packaging tape passes through the second guide block 67 for the operator to pull out by hand. The first packaging tape is pulled out from the tape reel 65, guided and pulled by the first guiding and traction assembly 63 to pass through the second limiting groove, enter the first limiting groove, and then is pushed out from the bottom of the package 10 by the sword threading mechanism 64. When the operator pulls the movable end of the first packaging tape, the first elastic piece and the second elastic piece bounce up, and the first packaging tape is pulled out from the first limiting groove and the second limiting groove to be attached and wound around the outside of the package 10.

[0039] Such as Figure 7 and Figure 8As shown, preferably, the first guide and traction assembly 63 includes a traction wheel 631, a first motor 632, a pressure wheel 633 and a reversing wheel 634. The traction wheel 631 is installed at the bottom of the second transverse support rod 613 to pull the first packaging belt to move. The first motor 632 is installed on the second transverse support rod 613 and is transmission-connected with the traction wheel 631 to drive the traction wheel 631 to rotate. The pressure wheel 633 is installed at the bottom of the second transverse support rod 613 and is spaced below the traction wheel 631 to press the first packaging belt against the traction wheel 631. The reversing wheel 634 is installed at the end of the second transverse support rod 613 away from the vertical support rod 611 to guide the first packaging belt from above the second transverse support rod 613 to between the pressure wheel 633 and the traction wheel 631. A limiting rod 6341 is provided on one side of the reversing wheel 634 to prevent the first packaging belt from escaping from the sliding track of the reversing wheel 634. The first guide traction assembly 63 also includes a control mechanism 635, which is installed at the bottom of the second transverse support rod 613 to drive the pressure wheel 633 to move horizontally below the traction wheel 631. The control mechanism 635 can be a combination of a motor and a connecting rod transmission pair, a combination of a motor and a gear rack, a combination of a cylinder and a push rod, or a combination of a hydraulic cylinder and a push rod. In the present invention, a combination of a motor and a connecting rod transmission pair is selected. The control mechanism 635 includes a second motor 637, a fixed seat 6351, a support rod 6352, a driving wheel 6353, a first connecting block 6354, a second connecting block 6355, a third connecting block 6356, a first connecting rod 6357, a second connecting rod 6358 and a third connecting rod 6359. The support rod 6352 is installed on the fixed seat 6351. The motor shaft of the second motor 637 is connected to the driving wheel 6353. The driving wheel 6353 is parallel to the motor shaft of the second motor 637. A first connecting rod 6357 is provided in the row direction, one end of the first connecting block 6354 is connected to the first connecting rod 6357, and the other end is connected to the second connecting block 6355 through the second connecting rod 6358, the second connecting block 6355 is movably connected to the support rod 6352, the second connecting block 6355 is provided with a third connecting rod 6359 perpendicular to the second connecting rod 6358, the third connecting rod 6359 is connected to the third connecting block 6356, and the third connecting block 6356 is connected to the pressure wheel 633. The second motor 637 is started to rotate forward or reverse, thereby driving the driving wheel 6353 to rotate in the clockwise direction or counterclockwise direction, the driving wheel 6353 drives the first connecting block 6354 to move, the first connecting block 6354 drives the second connecting block 6355 to slide on the support rod 6352, the second connecting block 6355 drives the third connecting block 6356 to move, and the third connecting block 6356 drives the pressing wheel 633 to move toward the direction close to the traction wheel 631 or away from the traction wheel 631. Of course, as an alternative embodiment, a lifting mechanism can be provided to make the pressing wheel 633 move up and down below the traction wheel 631.

[0040] The second horizontal support rod is provided with a controller and control buttons. The control buttons include a preparation button electrically connected to the controller for controlling the operation of the control mechanism 635, a start button for controlling the start of the first motor 632 to drive the traction wheel 631 to move, and a stop button for controlling the first motor 632 to stop working so that the traction wheel 631 stops moving. During the specific working process, when the first packaging tape is pulled between the traction wheel 631 and the pressure wheel 633, the preparation button is pressed, and the control mechanism 635 drives the pressure wheel 633 to move upward to clamp the first packaging tape actively; when the start button is pressed, the first motor 632 drives the traction wheel 631 to move, and the first packaging tape moves forward under the traction of the traction wheel 631; when the first packaging tape passes through the bottom of the packaged item 10, the stop button is pressed, the first motor 632 stops working, and the traction wheel 631 stops moving, so that the first packaging tape stops moving.

[0041] As Figure 4 shown, the first guiding and traction assembly 63 further includes at least one guide wheel 636 installed on the top of the second horizontal support rod 613 for guiding the first packaging tape to the reversing wheel 634. Of course, multiple guide wheels 636 can be provided and installed on the vertical support rod 611 and the second horizontal support rod 613 respectively, which can not only achieve the guiding function but also fix the first packaging tape to prevent the first packaging tape from shaking in the air.

[0042] As Figure 4 、 Figure 5 and Figure 6 shown, preferably, the first guiding and traction assembly 63 further includes a third guiding block 68 provided at the intersection of the first limiting groove and the second limiting groove. The third guiding block 68 has an arc-shaped guiding surface 681 for guiding the first packaging tape from the second limiting groove into the first limiting groove. It should be noted that the shapes and structures of the first guiding block 66, the second guiding block 67 and the third guiding block 68 are the same.

[0043] As Figure 1 and Figure 4 shown, preferably, two vertical tape threading machines 60 are provided, and the two vertical tape threading machines 60 are arranged side by side at intervals beside the turntable 20. One vertical tape threading machine 60 can achieve the tape threading function, but if two first packaging tapes need to be set on the packaged item 10, the packaged item 10 needs to be pushed. By setting two vertical tape threading machines 60, two first packaging tapes can be set on the packaged item 10 simultaneously, improving the working efficiency and saving working time. Of course, as an alternative implementation, one or more vertical tape threading machines 60 can also be provided.

[0044] As Figure 1As shown, the packaging device further includes a horizontal tape threading machine 70 for horizontally winding a packaging tape around the item to be packaged 10. The horizontal tape threading machine 70 and the vertical tape threading machine 60 are located on the same side of the linear track, and the horizontal tape threading machine 70 is located beside the blanking rack 90. When the process of placing corner protectors, winding film, and setting the vertical packaging tape is completed on the turntable 20, the item to be packaged 10 can be pushed to a position on the blanking rack 90 directly opposite the horizontal tape threading machine 70. Then, the horizontal tape threading machine 70 is started to horizontally wind the packaging tape around the outside of the item to be packaged 10.

[0045] As Figure 9 and Figure 10 As shown, the horizontal tape threading machine 70 includes a second frame 71, a second tape reel mounting bracket 72, a lifting bracket 73, a second guiding and traction assembly 74, and a lifting balance mechanism 75 disposed beside the turntable 20. The second tape reel mounting bracket 72 is installed on the second frame 71 for placing the second packaging tape. The lifting bracket 73 is installed on the second frame 71 to drive the second packaging tape to move up and down along the height direction of the item to be packaged 10. The second guiding and traction assembly 74 can be disposed on the lifting bracket 73 or on both the second frame 71 and the lifting bracket 73 simultaneously to guide and lead the second packaging tape to the circumferential direction of the item to be packaged 10. The lifting balance mechanism 75 is disposed on the second frame 71 to cooperate with the lifting bracket 73 for up and down movement. The tape reel is installed on the second tape reel mounting bracket 72, and the second packaging tape is pulled out from the second tape reel, led by the second guiding and traction assembly 74 to the circumferential direction of the item to be packaged 10. The second packaging tape is set as a horizontal packaging tape in the circumferential direction of the item to be packaged 10. Under the cooperative action of the lifting balance mechanism 75, the lifting bracket 73 moves up and down along the height direction of the item to be packaged 10, so as to set horizontal packaging tapes at different heights of the item to be packaged 10. It should be noted that the first packaging tape and the second packaging tape can use the same type and specification of packaging tape.

[0046] Specifically, the second frame 71 includes a first fixed plate 711 parallel to the ground and a second fixed plate 712 vertically mounted on the first fixed plate 711, the second reel mounting frame 72 is mounted on the first fixed plate 711, the lifting bracket 73 is mounted on the second fixed plate 712, and the lifting balance mechanism 75 is mounted on the second fixed plate 712 and connected to the lifting bracket 73. Two slide bars 713 are provided on the second fixed plate 712, and linear bearings (not shown) are respectively sleeved on the two slide bars 713, and a bearing seat (not shown) is provided on the outer sleeve of the linear bearing, and the bearing seat is fixed on the lifting balance mechanism 75, and the lifting balance mechanism 75 slides on the slide bar 713 through the linear bearing. The lifting and balancing mechanism 75 and the lifting bracket 73 are connected by a steel wire rope. The top of the second fixed plate 712 is provided with a first fixed pulley 714 and a second fixed pulley 715. The lifting bracket 73 is provided with a first connecting plate 716 and a second connecting plate 717 connected to the sliding rod 713. The first connecting plate 716 is provided with a first lifting ring 718, and the second connecting plate 717 is provided with a second lifting ring 719. One end of the steel wire rope is fixed on the first lifting ring 718, and the other end passes around the first fixed pulley 714, passes through the bottom end of the lifting and balancing mechanism 75, then passes around the second fixed pulley 715, and is finally fixed on the second lifting ring 719. The total weight of the lifting bracket 73 is consistent with the total weight of the lifting and balancing mechanism 75. When the operator pushes the lifting bracket 73 upward, the lifting and balancing mechanism 75 slides downward. When the operator pushes the lifting bracket 73 downward, the lifting and balancing mechanism 75 slides upward. The operator only needs to use very little force to realize the lifting and lowering movement of the lifting bracket 73 in the height direction of the packaged item 10, thereby realizing the setting of the second transverse packaging belt at different heights on the outside of the packaged item 10.

[0047] like Figure 7 and Figure 9 As shown, preferably, the second guide traction assembly 74 can be designed with the same structure as the first guide traction assembly 63, that is, the second guide traction assembly 74 includes a traction wheel installed at one end of the lifting bracket 73 for traction and movement of the second packaging belt, a motor installed on the lifting bracket 73 and connected to the traction wheel for driving the traction wheel to rotate, a pressing wheel installed on the lifting bracket 73 and arranged below the traction wheel for pressing the second packaging belt on the traction wheel, and a reversing wheel installed at the end of the lifting bracket 73 away from the second fixing plate 712 for guiding the second packaging belt from the side of the lifting bracket 73 to the pressing wheel and the traction wheel. It should be noted that the first guide traction assembly 63 is used to guide the first packaging belt to the top, side and bottom of the package 10 for setting the vertical packaging belt on the package 10, and the second guide traction assembly 74 is used to guide the second packaging belt to the circumference of the package 10 for setting the transverse packaging belt on the package 10.

[0048] like Figure 9 and Figure 10As shown in the figure, specifically, the lifting bracket 73 includes a first rod 731 parallel to the second fixing plate 712, second rods 732 and third rods 733 extending from both ends of the first rod 731 in a direction away from the second fixing plate 712. A third limiting groove (not shown in the figure) for the second packaging tape to pass through and slide is provided on the side of the second rod 732 facing the packaged item 10. A fourth limiting groove (not shown in the figure) for the second packaging tape to pass through and slide is provided on the side of the first rod 731 facing the packaged item 10. A fifth limiting groove (not shown in the figure) for the second packaging tape to pass through and slide is provided on the side of the third rod 733 facing the packaged item 10. Preferably, the third limiting groove, the fourth limiting groove and the fifth limiting groove can be designed with the same structure as the first limiting groove or the second limiting groove, that is, they all include a rod body, a bottom plate installed in the rod and an elastic sheet, and the elastic sheet is connected to the bottom plate through a torsion spring. The movable end of the second packaging tape passes through the third limiting groove, passes through the fourth limiting groove, and exits through the fifth limiting groove. When the operator pulls the movable end of the second packaging tape, the elastic sheets in the third limiting groove, the fourth limiting groove and the fifth limiting groove pop up, and the second packaging tape is pulled out and closely adheres to the outside of the packaged item 10. Of course, the second guiding and traction assembly 74 further includes a guiding block provided at the intersection of the third limiting groove and the fourth limiting groove or at the intersection of the fourth limiting groove and the fifth limiting groove.

[0049] The working principle of a preferred implementation of the embodiment of the present invention is as follows:

[0050] As Figure 1 and Figure 2 shown in the figure, in combination with the turntable 20, the film winding device 50, the vertical tape threading machine 60, the horizontal tape threading machine 70, the loading rack 80 and the unloading rack 90, the loading rack 80, the turntable 20 and the unloading rack 90 are arranged in sequence along a straight-line trajectory. The film winding device 50 and the vertical tape threading machine 60 are respectively located on both sides of the straight-line trajectory. The vertical tape threading machine 60 is located beside the turntable 20. The turntable 20 has a middle dividing plane passing through the center of the turntable 20 and perpendicular to the straight-line trajectory. The film winding device 50 is located on the side of the middle dividing plane facing the loading rack 80. A working area for the operator to operate is formed by enclosing between the film winding device 50, the turntable 20 and the unloading rack 90; or the film winding device 50 is located on the side of the middle dividing plane facing the unloading rack 90, and a working area for the operator to operate is formed by enclosing between the film winding device 50, the turntable 20 and the loading rack 80. With such a setting, multiple working positions can be provided in the circumferential direction of the turntable 20, saving production space.

[0051] The working process of the packaging equipment is as follows: Start the turntable 20 to drive the packaged item 10 placed on the turntable 20 to rotate. Start the film winding device 50 to wind the protective film 40 around the outside of the packaged item 10. During the film winding process, the operator places the L-shaped corner protector at the edges of the packaged item 10, and uses the tension of the protective film 40 to fix one side of the L-shaped corner protector. As the turntable 20 rotates, the protective film 40 fixes the other side of the L-shaped corner protector. Repeat the above steps until L-shaped corner protectors are installed at all the edges of the packaged item 10. After the film winding is completed, start the vertical tape threading machine 60. The first packaging tape is guided from the first tape reel into the first limiting groove, passes through the second limiting groove, and finally is pushed out from the bottom of the packaged item 10 by the sword threading mechanism 64. The operator pulls the movable end of the first packaging tape, pulls out the first packaging tape, and presses it tightly against the packaged item 10. Use a knotting mechanism (not shown in the figure) to cut the first packaging tape and fuse and bond the two ends of the first packaging tape at a node to complete the bundling process of the packaged item with the packaging tape vertically arranged. When the packaged item 10 is pushed to the position on the blanking rack 90 opposite to the horizontal tape threading machine 70, start the horizontal tape threading machine 70. The movable end of the second packaging tape penetrates into the third limiting groove, passes through the fourth limiting groove, and exits from the fifth limiting groove. The operator pulls the movable end of the second packaging tape, horizontally winds the second packaging tape around the circumference of the packaged item 10, uses a knotting mechanism (not shown in the figure) to cut the second packaging tape and fuse and bond the two ends of the second packaging tape at a node to complete the bundling process of the packaged item with the packaging tape horizontally arranged. The technical solution provided by the embodiment of the present invention enables the operator to complete the processes of placing the corner protector, covering the protective film, and vertically threading the tape at one work station. The operator only needs to move to another work station to complete the operation of setting the horizontal packaging tape on the packaged item 10, saving the trouble of repeatedly transporting the packaged item 10 to different operating work stations, saving production space, reducing the number of operators, and saving production costs.

[0052] It should be noted that all the directional indications (such as up, down, left, right, front, back, top, bottom...) in the embodiments of the present invention are only used to explain the relative position relationship between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly.

[0053] It should also be noted that when an element is referred to as "fixed to" or "disposed on" another element, the element can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0054] The above embodiments are only preferred embodiments of the present invention, and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art based on the present invention fall within the scope of protection required by the present invention.

Claims

1. A packaging device, characterized in that, It includes a turntable for carrying the packaged items, a loading rack for conveying the packaged items onto the turntable, an unloading rack for discharging the packaged items from the turntable, a driving device for driving the turntable to rotate, a film winding device for winding a protective film around the packaged items, and a vertical tape threading machine for vertically winding a first packaging tape around the packaged items. The loading rack, the turntable, and the unloading rack are arranged in sequence along a straight-line trajectory. The film winding device and the vertical tape threading machine are respectively located on both sides of the straight-line trajectory. The vertical tape threading machine is located beside the turntable. The turntable has a middle dividing plane passing through the center of the turntable and perpendicular to the straight-line trajectory. The film winding device is located on the side of the middle dividing plane facing the loading rack. A working area for the operator to work is enclosed among the film winding device, the turntable, and the unloading rack. Or, the film winding device is located on the side of the middle dividing plane facing the unloading rack. A working area for the operator to work is enclosed among the film winding device, the turntable, and the loading rack. The vertical tape threading machine includes a first rack arranged beside the turntable, a first tape reel mounting rack installed on the first rack for placing the first packaging tape, a first guiding and traction assembly arranged on the first rack for guiding and pulling the first packaging tape to the upper and side parts of the packaged items, and a threading sword mechanism arranged on the first rack for pushing the movable end of the first packaging tape to the lower part of the packaged items. The first rack includes a vertical support rod located beside the turntable, a first horizontal support rod extending from the vertical support rod away from the turntable and near the bottom end of the vertical support rod, and a second horizontal support rod extending from the top end of the vertical support rod above the turntable. The tape reel mounting rack is located above the first horizontal support rod, and the first tape reel mounting rack is connected to the vertical support rod and / or the first horizontal support rod. The first guiding and traction assembly is arranged on the second horizontal support rod or on the second horizontal support rod and the vertical support rod. The threading sword mechanism is installed on the first horizontal support rod. A first limiting groove for the first packaging tape to pass through and slide is provided on the side of the vertical support rod facing the turntable. A second limiting groove communicating with the first limiting groove for the first packaging tape to pass through and slide is provided at the bottom of the second horizontal support rod. The first guiding and traction assembly includes a traction wheel installed at the bottom of the second horizontal support rod for pulling the first packaging tape to move, a motor installed on the second horizontal support rod and drivingly connected to the traction wheel for driving the traction wheel to rotate, a pressure wheel installed at the bottom of the second horizontal support rod and spaced below the traction wheel for pressing the first packaging tape onto the traction wheel, and a reversing wheel installed at the end of the second horizontal support rod away from the vertical support rod for guiding the first packaging tape from above the second horizontal support rod to between the pressure wheel and the traction wheel. The packaging device further includes a lateral tape threading machine for laterally winding a second packaging tape around the item to be packaged. The lateral tape threading machine and the vertical tape threading machine are located on the same side of the linear track, and the lateral tape threading machine is located beside the blanking rack. The lateral tape threading machine includes a second machine frame disposed beside the blanking rack, a second tape reel mounting rack installed on the second machine frame for placing the second packaging tape, a lifting bracket slidably mounted on the second machine frame for driving the second packaging tape to move up and down along the height direction of the item to be packaged, a second guiding and traction assembly disposed on the lifting bracket or on the second machine frame and the lifting bracket for guiding and leading the second packaging tape to the circumferential direction of the item to be packaged, and a lifting balance mechanism disposed on the second machine frame for traction and driving the lifting bracket to move up and down. The second machine frame includes a first fixing plate parallel to the ground and a second fixing plate vertically installed on the first fixing plate. The second tape reel mounting rack is installed on the first fixing plate, the lifting bracket is installed on the second fixing plate, and the lifting balance mechanism is installed on the second fixing plate and connected to the lifting bracket. The lifting bracket includes a first support rod parallel to the second fixing plate, second support rods and third support rods extending away from the second fixing plate from both ends of the first support rod. A third limiting groove for the second packaging tape to pass through and slide is provided on the side of the second support rod facing the item to be packaged, a fourth limiting groove for the second packaging tape to pass through and slide is provided on the side of the first support rod facing the item to be packaged, and a fifth limiting groove for the second packaging tape to pass through and slide is provided on the side of the third support rod facing the item to be packaged; and / or, a sliding rod and a fixed pulley are provided on the second fixing plate. Both sides of the lifting balance mechanism are connected to the sliding rod through linear bearings and the lifting balance mechanism can slide on the sliding rod. The lifting bracket and the lifting balance mechanism are connected by a rope. One end of the rope is fixed on the lifting bracket, and the other end bypasses the fixed pulley and is fixed on the lifting balance mechanism. The film winding device includes a column and a film winding cylinder rack installed on the column. An elevating drive mechanism for driving the film winding cylinder rack to move up and down and slide along the height direction of the item to be packaged is provided inside the column, and the film winding cylinder rack is provided with a mounting shaft for mounting a protective film.

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