A three-dimensional wrapping machine

Abstract

The application provides a three-dimensional wrapping machine, comprising a rack, a box turning mechanism, a box pushing mechanism and a heating mechanism arranged in sequence on the rack, the heating mechanism is driven to move up and down through a connecting lifting cylinder, and a forced separation mechanism is further included. Through the arrangement of the box turning mechanism, the box pushing mechanism, the heating mechanism and the forced separation mechanism, the phenomenon of box jamming can be reduced, and the film wrapping effect is improved.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and more specifically, to a three-dimensional wrapping machine. Background Technology

[0002] The BMI I transparent film automatic packaging machine is an automated piece of equipment in medicine box production. It can stack and wrap medicine boxes, combining multiple boxes into a single unit for easier transport and improved waterproofing during transit. However, existing 3D wrapping machines have several design flaws that affect production: 1. The box-flipping process uses a single-motor flat belt drive, which lacks synchronization and is prone to slippage, leading to box jamming. 2. Slight variations in the material and size of medicine boxes from different manufacturers result in significant length variations when multiple boxes are stacked. The fixed pusher cylinder in the existing wrapping mechanism causes multiple boxes to be missing or oversized. 3. After heat shrinking the film, the film material tends to stick together, preventing separation between adjacent boxes and causing jamming. Jamming requires manual intervention and causes machine downtime, reducing production efficiency. Summary of the Invention

[0003] This invention discloses a three-dimensional wrapping machine with a simple structure and convenient operation, aiming to improve the card box problem caused by various design defects in existing three-dimensional wrapping machines.

[0004] The present invention adopts the following solution:

[0005] This application provides a three-dimensional wrapping machine, including a frame on which a box-flipping mechanism, a box-pushing mechanism, and a heating mechanism are sequentially arranged. The heating mechanism is driven to move up and down by a lifting cylinder. It also includes a forced separation mechanism. The box-flipping mechanism includes a first box-inlet channel and a first synchronization device and a second synchronization device arranged parallel to both sides of the first box-inlet channel. A stop is provided on the first box-inlet channel. The first and second synchronization devices are adapted to drive a medicine box placed in the first box-inlet channel to flip at the stop. The box-pushing mechanism is located between the box-flipping mechanism and the heating mechanism to push the medicine box to the heating mechanism's workstation for cosmetic heating. The forced separation mechanism is located downstream of the heating mechanism and includes a pusher cylinder with a movable end. The air inlet of the pusher cylinder is connected in series with the air inlet of the lifting cylinder, and the pusher cylinder is configured to drive the movable end to push away from the cylinder body when the lifting cylinder drives the heating mechanism to rise.

[0006] Furthermore, the first synchronization device includes a first motor and a first toothed synchronization belt driven by the first motor, and the second synchronization device includes a second motor and a second toothed synchronization belt driven by the second motor. Tensioning pulleys are provided on the sides of the first and second toothed synchronization belts away from the first inlet channel. The first and second toothed synchronization belts are adapted to synchronously contact the two sides of the medicine box at the inlet of the first inlet channel to drive the medicine box to move within the first inlet channel and drive the medicine box to flip at the stop.

[0007] Furthermore, a transition track is provided at the rear end of the box inlet channel, and baffles are provided on both sides of the transition track. The baffles are adjustable left and right on both sides of the transition track so that the distance between the baffles is adjustable.

[0008] Furthermore, the rear end of the transition track is provided with the box-pushing mechanism, which includes a cylinder pusher perpendicular to the transition track. The movable end of the cylinder pusher is provided with a movable push plate, which can be adjusted back and forth along the direction of the transition track on the cylinder pusher. The cylinder pusher is adapted to drive the movable push plate to push the medicine box located in front of the movable push plate to the next station along the direction perpendicular to the transition track.

[0009] Furthermore, a left guide plate and a right guide plate are provided at the connection between the transition track and the push box mechanism. The left guide plate and the right guide plate can be adjusted back and forth along the direction of the transition track. The movable push plate also includes a first auxiliary plate perpendicular to it. The first auxiliary plate is perpendicular to the end of the movable push plate near the right guide plate and extends toward the direction of the cylinder pusher. A second auxiliary plate is perpendicularly provided at the end of the left guide plate near the movable push plate. The second auxiliary plate extends away from the cylinder pusher. The first auxiliary plate is located at the front end of the second auxiliary plate along the direction of the transition track.

[0010] Furthermore, the heating mechanism has a second box-inlet channel at its front end, and box-pushing guide plates are provided on both sides of the connection between the second box-inlet channel and the box-pushing mechanism, and the box-pushing guide plates extend to the side baffle of the previous station; the end of the box-pushing guide plate near the box-pushing mechanism has an arc-shaped structure with the arc opening facing outward.

[0011] Furthermore, a guide film pressing plate is provided above the second box inlet channel, and the guide film pressing plate is located close to the heating mechanism.

[0012] Furthermore, the two air ports of the lifting cylinder are each provided with a three-way valve, and the two air ports of the pusher cylinder are respectively connected to the three-way valves through air pipes.

[0013] Furthermore, the pusher cylinder is mounted on a fixed mounting base, and the pusher cylinder is fixed on the fixed mounting base in an adjustable manner.

[0014] Furthermore, a nylon push plate is provided on the movable end of the push cylinder.

[0015] Beneficial effects:

[0016] 1. Employing dual motors and dual speed control, optimal synchronous speed can be achieved. The dual motor mode drives the medicine box from both sides, providing greater driving force and facilitating rapid flipping of the medicine box at the stop. The toothed synchronous belt ensures high speed accuracy and eliminates slippage. By setting a transition track, the medicine boxes are arranged in an orderly manner during movement, with an automatic correction function. The principle is that because the space between the side baffles and the width of the medicine box is very small, the width of the medicine boxes themselves, through impact, friction, and mutual compression with the guardrails during movement, achieves a balancing and correction effect, ultimately resulting in the medicine boxes moving forward in an orderly arrangement.

[0017] 2. An adjustable pusher mechanism is incorporated to ensure precise positioning of each batch of medicine boxes, taking into account minute variations in their dimensions and friction. Specifically, the adjustable movable pusher plate allows for adjustment of its position, increasing the contact area between the plate and the medicine box. This ensures greater stability when pushing the box and prevents it from tilting and impacting the guardrail. Adjustable left and right guide plates further enhance the contact area between these plates and the medicine box, maintaining a stable and balanced position.

[0018] 3. A pusher cylinder is connected in series with the lifting cylinder to laterally separate the heat-shrinked medicine boxes, thereby quickly and forcibly separating medicine boxes that are stuck together. This design effectively solves the problem of two connected sets of medicine boxes sticking together and being unable to be conveyed to the next workstation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of a three-dimensional wrapping machine according to an embodiment of the present invention;

[0020] Figure 2 This is an exploded structural diagram of the box-flipping mechanism of a three-dimensional wrapping machine according to an embodiment of the present invention;

[0021] Figure 3 This is a front view structural schematic diagram of the box-flipping mechanism of a three-dimensional wrapping machine according to an embodiment of the present invention;

[0022] Figure 4 This is a top view structural schematic diagram of the box-flipping mechanism of a three-dimensional wrapping machine according to an embodiment of the present invention;

[0023] Figure 5This is a side view structural schematic diagram of the box-flipping mechanism of a three-dimensional wrapping machine according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the pusher mechanism of a three-dimensional wrapping machine according to an embodiment of the present invention;

[0025] Figure 7 yes Figure 6 A magnified structural diagram of I;

[0026] Figure 8 This is a schematic diagram of the movable push plate of the box-pushing mechanism of a three-dimensional wrapping machine according to an embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the right guide plate of the box-pushing mechanism of a three-dimensional wrapping machine according to an embodiment of the present invention;

[0028] Figure 10 This is a schematic diagram of the left guide plate structure of the box-pushing mechanism of a three-dimensional wrapping machine according to an embodiment of the present invention;

[0029] Figure 11 This is a schematic diagram of the structure of a forced separation device according to an embodiment of the present invention;

[0030] Figure 12 yes Figure 11 Enlarged structural diagram of part of the II section;

[0031] icon:

[0032] Rack 10;

[0033] Medicine box 20;

[0034] Box-flipping mechanism 30, stop block 31, first motor 32, first toothed synchronous belt 33, second motor 34, second toothed synchronous belt 35, driving synchronous pulley 36, driven synchronous pulley 37, cover plate 38, tensioning pulley 39, first box-inlet channel 301;

[0035] Transition track 40, baffle 41;

[0036] Push box mechanism 50, cylinder pusher 51, mounting plate 52, elongated hole 521, movable push plate 53, first auxiliary plate 531, movable column 532, left guide plate 54, second auxiliary plate 541, right guide plate 55, mounting base 56, second elongated hole 561, mounting column 57, medicine box baffle 58, first push box mechanism 501, second push box mechanism 502;

[0037] Forced separation mechanism 60, heating plate 61, lifting cylinder 62, beauty station 63, conveyor belt 64, pusher cylinder 65, fixed mounting base 66, nylon push plate 67;

[0038] Push box guide plate 70;

[0039] 80mm guide film pressing box plate;

[0040] Second box entry channel 90. Detailed Implementation

[0041] Example

[0042] Combination Figure 1 As shown, this embodiment provides a three-dimensional wrapping machine, including a frame 10. A box-flipping mechanism 30, a box-pushing mechanism 50, and a heating mechanism are sequentially arranged on the frame 10. The heating mechanism is driven to move up and down by a lifting cylinder 62. It also includes a forced separation mechanism 60. The box-flipping mechanism 30 includes a first box-inlet channel 301 and a first synchronization device and a second synchronization device arranged parallel to both sides of the first box-inlet channel 301. A stop block 31 is provided on the first box-inlet channel 301. The first synchronization device and the second synchronization device are adapted to drive the medicine placed in the first box-inlet channel 301. The box 20 flips at the stop block 31; the box-pushing mechanism 50 is disposed between the box-flipping mechanism 30 and the heating mechanism to push the box 20 to the heating mechanism station for beauty heating; the forced separation mechanism 60 is disposed at the downstream station of the heating mechanism, and includes a push cylinder 65, the push cylinder 65 is provided with a movable end, the air port of the push cylinder 65 is connected in series with the air port of the lifting cylinder 62, and the push cylinder 65 is configured to drive the movable end to push away from the cylinder body of the push cylinder 65 when the lifting cylinder 62 drives the heating mechanism to rise.

[0043] In this embodiment, the frame 10 is used to install the box-flipping mechanism 30, the box-pushing mechanism 50, and the heating mechanism, etc., and a first box-entry channel 301 for conveying the medicine box 20 and a conveyor belt set on the first box-entry channel 301 are provided in the upper part of the frame 10.

[0044] The box-flipping mechanism 30 is a dual-motor synchronous box-flipping device, which is set on the frame 10. A first box-in channel 301 suitable for the movement of the medicine box 20 is formed on the frame 10. A stop block 31 for driving the medicine box 20 to flip is provided at the bottom of the first box-in channel 301.

[0045] Combination Figures 2 to 5As shown, in this embodiment, the frame 10 is also equipped with a conveyor belt device (not shown) for conveying the medicine box 20 from the previous process to the first box inlet channel 301, and after exiting the first box inlet channel 301, it is conveyed to the next process. Here, the first box-feeding channel 301 is set on the frame 10. A stop block 31 is set at the bottom of the first box-feeding channel 301. After the medicine box 20 touches the stop block 31, it will rotate 90° under the drive of the upper driving force. The first synchronization device and the second synchronization device are set on both sides of the first box-feeding channel 301. The first synchronization device includes a first motor 32 and a first toothed synchronization belt 33. The second synchronization device includes a second motor 34 and a second toothed synchronization belt 35. The first motor 32 is adapted to drive the first toothed synchronization belt 33 to rotate, and the second motor 34 is adapted to drive the second toothed synchronization belt 35 to rotate. The parallel arrangement of the first toothed synchronization belt 33 and the second toothed synchronization belt 35 makes the surfaces that contact the medicine box 20 parallel, that is, the force acting on the medicine box 20 is also uniform, and the force on both sides is the same. Through the synchronization devices on both sides, when the medicine box 20 moves to the entrance of the first inlet channel 301, the first toothed synchronization belt 33 and the second toothed synchronization belt 35 of the first and second synchronization devices come into contact. Since the portions of the first toothed synchronization belt 33 and the second toothed synchronization belt 35 within the first inlet channel 301 are moving in the same direction as the medicine box 20, they will drive the medicine box 20 to continue moving forward under the action of friction. Furthermore, the first toothed synchronization belt 33 and the second toothed synchronization belt 35 contact the middle and above of the medicine box 20, so that when the bottom of the medicine box 20 touches the stop block 31, the upper part continues to move due to inertia, while the lower part is blocked by the stop block 31, causing the medicine box 20 to flip forward 90° and then cross the stop block 31 after flipping, thereby completing the flipping action.

[0046] Combination Figure 3 As shown, the stop 31 is located at the rear end of the inlet of the first box-feeding channel 301. Specifically, the distance between the stop 31 and the inlet is greater than or equal to the width of a medicine box 20. This allows the medicine box 20 to flip only after it has fully entered the first box-feeding channel 301. This design ensures that the medicine box 20 flips when subjected to maximum driving force, improving the flipping effect and preventing jamming due to insufficient driving force. In a preferred embodiment, the height of the stop 31 is less than one-quarter of the height of the medicine box 20 to ensure that the medicine box 20 can flip over when subjected to force at the top.

[0047] In this embodiment, the first toothed synchronous belt 33 and the second toothed synchronous belt 35 have the same structure. The toothed synchronous belt is a prior art product, such as a PU synchronous belt. Its internal meshing teeth mesh with the meshing teeth on the driving synchronous pulley 36 mounted on the first motor 32 and the second motor 34, thereby preventing slippage between the motor and the first toothed synchronous belt 33 and the second toothed synchronous belt 35. The outer surfaces of the first toothed synchronous belt 33 and the second toothed synchronous belt 35 are smooth surfaces with a certain coefficient of friction, generating a certain frictional force when in contact with the medicine box 20. Simultaneously, a driven synchronous pulley 37 is also provided on the frame 10. The first toothed synchronous belt 33 and the second toothed synchronous belt 35 are fixed to the driving synchronous pulley 36 and the driven synchronous pulley 37, respectively, and the motor can drive the driving synchronous pulley 36 to rotate. The first motor 32 and the second motor 34 are existing adjustable speed motors, allowing them to adjust different speeds according to different types of medicine boxes 20 to achieve the optimal synchronous speed. Furthermore, the first motor 32 and the second motor 34 rotate in opposite directions but at the same speed. To improve the tension of the first toothed synchronous belt 33 and the second toothed synchronous belt 35, tensioning pulleys 39 are provided on the sides of the first toothed synchronous belt 33 and the second toothed synchronous belt 35 away from the first feed channel 301. These tensioning pulleys 39 are adjustable to adjust the tension of the first toothed synchronous belt 33 and the second toothed synchronous belt 35. A cover plate 38 is also provided above the first toothed synchronous belt 33 and the second toothed synchronous belt 35. Bearings are provided on the cover plate 38 for connection to the driving synchronous pulley 36 and the driven synchronous pulley 37.

[0048] In a preferred embodiment, a transition track 40 is provided at the rear end of the first box-in channel 301, and baffles 41 are respectively provided on both sides of the transition track 40. A conveyor belt device is provided below the transition track 40, which can drive the medicine boxes 20 to continue moving forward. Here, the distance between the baffles 41 is greater than the width of the medicine box 20. In a further embodiment, the width margin between the baffles 41 and the medicine box 20 moving on the transition track 40 is less than 10mm. By setting a small width margin, the impact, friction, and mutual squeezing with the guardrail during the movement play a balancing and correcting role, and finally the medicine boxes 20 move forward in an orderly manner. In another preferred embodiment, the baffles 41 are flexibly and adjustable on both sides of the transition track 40, so that the distance between the baffles 41 is adjustable. Thus, the width range can be adjusted according to different types of medicine boxes 20. This setting can solve the problem that the existing medicine boxes 20 are relatively messy and easy to get stuck during the movement. Furthermore, in this embodiment, the length of the transition track 40 is greater than 500mm, for example, 530mm. In other embodiments, it can be extended as needed. By adjusting the transition track 40 before entering the box-pushing mechanism 50, the problem of the box-pushing mechanism 50 deviating during box pushing can be reduced.

[0049] The box-pushing mechanism 50 is adapted to be mounted on the frame 10 and located at the rear end of the transition track 40. The box-pushing mechanism 50 includes a cylinder pusher 51 perpendicular to the transition track 40. The movable end of the cylinder pusher 51 is provided with a movable push plate 53. The movable push plate 53 can be adjusted back and forth along the direction of the transition track 40 on the cylinder pusher 51. The cylinder pusher 51 is adapted to drive the movable push plate 53 to push the medicine box 20 located in front of the movable push plate 53 to the next station along the direction perpendicular to the transition track 40.

[0050] Specifically, in this process, taking the direction of movement of the medicine box 20 along the transition track 40 as the box-in direction, the box-pushing mechanism 50 includes a cylinder pusher 51 perpendicular to the transition track 40. The movable end of the cylinder pusher 51 is provided with the movable push plate 53. The movable push plate 53 can be adjusted back and forth on the cylinder pusher 51 along the box-in direction. The cylinder pusher 51 is adapted to drive the movable push plate 53 to push the medicine box 20 located in front of the movable push plate 53 along the direction perpendicular to the transition track 40 to the next station.

[0051] Referring to Figures 1-4, in this embodiment, the transition track 40 is used to continuously convey the medicine box 20 from the previous workstation to the workstation area of ​​the pusher mechanism 50. A conveyor belt 64 can be installed on the transition track 40 to convey the medicine box 20. The direction in which the medicine box 20 moves along the transition track 40 is defined as the box-entry direction, and the forward direction is defined as forward. A left guide plate 54 and a right guide plate 55 are provided behind the cylinder pusher 51 along the direction of the transition track 40. The left guide plate 54 and the right guide plate 55 are used to guide the medicine box 20 into the active area of ​​the cylinder pusher 51. A second auxiliary plate 541 is vertically arranged at the end of the left guide plate 54 near the active pusher 53. The second auxiliary plate 541 extends away from the cylinder pusher 51, and the first auxiliary plate 531 is located at the front end of the second auxiliary plate 541 along the box-entry direction. By setting the second auxiliary plate 541, when the cylinder pusher 51 pushes out the medicine box 20, the medicine box 20 can be moved along the length direction of the second auxiliary plate 541, preventing the medicine box 20 from shifting to the side. Here, both the left guide plate 54 and the right guide plate 55 are movably fixed to the mounting base 56. The mounting base 56 includes at least one second elongated hole 561. Both the left guide plate 54 and the right guide plate 55 are provided with mounting posts 57 that mate with the elongated hole 521. The mounting posts 57 are adapted to pass through the second elongated hole 561 and be fixed to the mounting base 56. The mounting base 56 is fixed to the frame 10 and located on both sides of the transition track 40, and it can be fixed with screws. The second elongated hole 561 on the mounting base 56 can be set to a specification of 6*50mm. The mounting post 57 can be made of screws or bolts, which can be directly welded to the left guide plate 54 and the right guide plate 55 and locked to the mounting base 56 with nuts. When the size of the medicine box 20 is different, it can be adjusted back and forth along the box feeding direction so that the position of the second auxiliary plate 541 can fit with the medicine box 20 and play a guiding role. At the same time, the contact area between the guide plate and the medicine box 20 can be increased or decreased by adjusting back and forth, thereby achieving the function of stabilizing and balancing the medicine box 20.

[0052] Combination Figure 6 and Figure 10As shown, the cylinder pusher 51 is located at the adjacent front end of the right guide plate 55 along the box-feeding direction. The movable end of the cylinder pusher 51 includes a mounting plate 52, which has at least one elongated hole 521. A movable column 532 adapted to move left and right within the elongated hole 521 is fixedly mounted on the movable push plate 53. The movable column 532 is adapted to pass through the elongated hole 521 and is fixed within it. Here, the cylinder pusher 51 is connected to an air source. When air is supplied, the mounting plate 52 is pushed out by the movable end, thereby driving the movable push plate 53 to push in a direction perpendicular to the transition track 40, so as to push the medicine box 20 to the next working position. The movable column 532 is fixed to the movable push plate 53 and can also be fixed in the elongated hole 521 by a nut, so that the movable push plate 53 is fixed to the mounting plate 52. Due to the elongated hole 521, the movable column 532 can be adjusted left and right in the elongated hole 521, so as to adjust the contact area of ​​the movable push plate 53 with the medicine box 20 in the pushing area according to the length of the medicine box 20, so that the push plate pushes the medicine box 20 more stably. It should be noted that the principle of changing the contact area between the movable push plate 53 and the medicine box 20 by adjusting the movable push plate 53 left and right is that it can cooperate with the mounting plate 52. When it completely overlaps with the mounting plate 52, the movable push plate 53 is the entire contact area. When the movable push plate 53 partially overlaps with the mounting plate 52, the mounting plate 52 can be partially exposed and in contact with the medicine box 20. At this time, the contact area is the movable push plate 53 and the partially exposed mounting plate 52, thereby increasing the contact area. Furthermore, the movable push plate 53 also includes a first auxiliary plate 531 perpendicular to it. The first auxiliary plate 531 is perpendicular to the end of the movable push plate 53 near the right guide plate 55 and extends towards the cylinder pusher 51. With this arrangement, when the cylinder pusher 51 is pushed forward, the first auxiliary plate 531 moves into the transition track 40, which can block the subsequent medicine box 20 from entering, thereby preventing the cylinder pusher 51 from getting stuck when reversing.

[0053] Combination Figure 6 As shown, in this embodiment, a medicine box baffle 58 is provided at the front end along the box feeding direction, and the cylinder pusher 51 is located between the medicine box baffle 58 and the left guide plate 54. The medicine box baffle 58 can block the forward movement of the medicine box 20, stopping the medicine box 20 in front of the moving area of ​​the cylinder pusher 51. Furthermore, the position of the medicine box baffle 58 can be adjusted to adjust the required number or size of different medicine boxes 20.

[0054] In another embodiment, the rear end of the push box mechanism 50 is further provided with a first push box mechanism 501 and a second push box mechanism 502. Through multi-stage pushing, the medicine box 20 can be moved on the frame 10 and its direction can be changed as needed.

[0055] The heating mechanism has a second box-inlet channel 90 at its front end. Push-box guide plates 70 are located on both sides of the connection between the second box-inlet channel 90 and the push-box mechanism 50, extending to the side baffle 41 of the previous station. The end of the push-box guide plate 70 near the push-box mechanism 50 has an outward-facing arc-shaped structure. The push-box guide plate 70 is made of stainless steel for easy processing. By extending the length and angle of the push-box guide plate 70, a smooth and non-collision connection with the medicine box 20 of the previous station is ensured. The adjusted push-box guide plate 70 perfectly matches the feed angle of the copper plate in the rear film guide compartment, stabilizing the transparent film fold. The arc-shaped opening here allows for smoother connection between the two stations, reducing the risk of box jamming. A film-guiding and pressing plate 80 is located at the upper end of the second box-inlet channel 90, close to the heating mechanism. Here, the front guide angle of the guide film pressing plate 80 is set to a small arc, so that the guide film pressing plate 80 is as close as possible to the heating mechanism, so that the medicine box 20 can be pushed in smoothly without jamming. This can minimize the space between the heating mechanism and the guide film pressing plate 80, so that the PVC transparent film seal is tight, and the shrinkage in the next process will be more flat and beautiful.

[0056] Combination Figure 11 As shown, the forced separation mechanism 60 is adapted to be installed above the frame 10. The heating mechanism includes a heating plate 61, a lifting cylinder 62, and a conveying device. The conveying device can be a conveyor belt or a movable push rod mechanism located in the second box inlet channel 90, used to push the medicine box 20 to the beauty heating station. The heating plate 61 is connected to the lifting cylinder 62 to drive it to move up and down on the beauty station 63. When the heating plate 61 rises, the conveying device can push the processed medicine box 20 out of the beauty station 63. It also includes a pusher cylinder 65, which is provided with a movable end. The direction of movement of the movable end is perpendicular to the conveying direction of the conveying device. The air ports of the pusher cylinder 65 are connected in series with the air ports of the lifting cylinder 62. The pusher cylinder 65 is configured to drive the movable end to push away from the cylinder body of the pusher cylinder 65 when the lifting cylinder 62 drives the heating plate 61 to rise, so as to separate the medicine box 20 pushed out by the conveying device and push it to the next station.

[0057] In this embodiment, the conveying device is used to convey the medicine box 20 from the previous workstation to the beauty workstation 63. The beauty workstation 63 refers to the position where the heating plate 61 performs heat shrinking processing on the wrapping film covering the medicine box 20. When the heating plate 61 presses down, it can perform heat shrinking on the wrapping film, thereby tightening the wrapping film onto the medicine box 20. The heat shrinking technology of the heating plate 61 is existing technology and is not the focus of this invention, so it will not be elaborated upon here. The conveying device can use a movable push rod mechanism to push the medicine box 20 from the previous workstation to the beauty workstation 63. It can push multiple medicine boxes 20 at once. Because the stroke of the cylinder is fixed, the number of medicine boxes 20 conveyed each time is the same, and the conveying distance is also set precisely to reach the beauty workstation 63. The medicine box 20 processed at the beauty workstation 63 is then pushed out of the beauty workstation 63 by the next group of medicine boxes 20. In order to facilitate the removal of the product after it is pushed out of the beauty station 63, the path of the next station is set perpendicular to the conveying direction of the conveying device. So when the pusher cylinder 65 pushes, the medicine box 20 will be pushed out vertically, so as to provide shear force to separate the adhered medicine box 20.

[0058] Continue to combine Figure 12 As shown, in this embodiment, a conveyor belt 64 is also provided in front of the push cylinder 65. The conveyor belt 64 is used to transport the medicine box 20 pushed out from the beauty station 63 to the next station. Specifically, the push cylinder 65 is mounted on a fixed mounting base 66, which is fixed to the frame 10. The position of the fixed mounting base 66 on the frame 10 can be adjusted back and forth along the direction of movement of the push cylinder 65, so that the stroke of the push cylinder 65 can be adjusted according to actual needs to accommodate medicine boxes 20 of different sizes. Specifically, the fixed mounting base 66 can be fixed to the transverse elongated hole 521 by adjustable bolts, so that the position can be adjusted within the transverse elongated hole 521 after tightening and loosening the bolts. The push cylinder 65 is vertically adjustable and fixed to the fixed mounting base 66. Specifically, a vertical elongated hole 521 can be provided on the fixed mounting base 66 so that the push cylinder 65 can be vertically adjusted within the vertical elongated hole 521. This setting improves the ability of the pusher cylinder 65 to adapt to different medicine box heights 20.

[0059] Continue to combine Figure 11As shown, in this embodiment, the lifting cylinder 62 is positioned above the heating plate 61, which is located above the beauty station 63. The lifting cylinder 62 controls the up-and-down movement of the heating plate 61. Two T-junctions are provided on the two air ports of the lifting cylinder 62. The two air ports of the push cylinder 65 are connected to the T-junctions via air pipes, allowing the recirculated airflow from the lifting cylinder 62 to be delivered into the push cylinder 65 to drive its movement. This arrangement improves the synchronization between the lifting cylinder 62 and the push cylinder 65. When the lifting cylinder 62 drives the heating plate 61 upward, the movable end of the push cylinder 65 extends and then quickly retracts. When the lifting cylinder 62 drives the heating plate 61 to rise, the recovered airflow directly enters the pusher cylinder 65 through the three-way valve to push the medicine box 20 located in front of the pusher cylinder 65 forward and quickly retract it. Then, the conveyor pushes the next set of medicine boxes 20 to the beauty station 63. At this time, the medicine boxes 20 on the beauty station 63 and the processed medicine boxes 20 are pushed out in front of the pusher cylinder 65 by the newly pushed medicine boxes 20 and are conveyed to the next station by the conveyor belt 64. If the medicine boxes 20 stick together due to the wrapping film and get stuck at the exit position of the beauty station 63, and cannot be conveyed away by the conveyor belt 64, then when the lifting device rises again, the pusher cylinder 65 will push out simultaneously to forcibly separate the medicine boxes 20 stuck at the exit position, thereby solving the problem of sticking and allowing the next set of medicine boxes 20 to be smoothly pushed onto the conveyor belt 64. This solution utilizes recycled airflow to control the operation of the push cylinder 65, which reduces the need for another air source. It also allows the lifting cylinder 62 and the push cylinder 65 to work synchronously without the use of a controller, thus reducing equipment costs.

[0060] In a preferred embodiment, a nylon push plate 67 is provided on the movable end of the push cylinder 65. The nylon push plate 67 can be replaced according to the size of the medicine box 20 to adapt to different sizes of medicine boxes 20. At the same time, using a push plate made of nylon material can also reduce damage to the medicine box 20.

[0061] By means of the present invention, the lifting cylinder 62 on the heating plate 61 is connected in series with the push cylinder 65, so that the lifting cylinder 62 and the push cylinder 65 can work synchronously, thereby improving their synchronization. In addition, the push cylinder 65 can effectively solve the problem of adhesion between the medicine boxes 20.

[0062] In this invention, improvements and innovations have been made to each process of the three-dimensional wrapping machine, which effectively reduces the jamming phenomenon that occurs during the film wrapping process, making the entire product shrink and tighten, significantly improving the product grade, and ensuring stable equipment operation.

[0063] It should be understood that the above are merely preferred embodiments of the present invention, and the scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

[0064] The accompanying drawings used in the above description of the embodiments only illustrate certain embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

Claims

1. A three-dimensional wrapping machine comprising a frame, on which a box turning mechanism, a box pushing mechanism and a heating mechanism are arranged in sequence, the heating mechanism being connected with a lifting cylinder to drive it to perform lifting movement; characterized in that, Further comprising a forced separation mechanism; wherein, The box turning mechanism comprises a first box feeding channel and first and second synchronization devices arranged in parallel on both sides of the first box feeding channel, the first box feeding channel is provided with a stop block, and the first and second synchronization devices are adapted to drive the cosmetic box placed in the first box feeding channel to turn over at the stop block; The box pushing mechanism is arranged between the box turning mechanism and the heating mechanism to push the cosmetic box to the heating mechanism station for cosmetic heating; the forced separation mechanism is arranged at a downstream station of the heating mechanism and comprises a push hand cylinder provided with a movable end, the gas ports of the push hand cylinder are arranged in series with the gas ports of the lifting cylinder, and the push hand cylinder is configured to drive the movable end to push out in a direction away from the cylinder body of the push hand cylinder when the lifting cylinder drives the heating mechanism to rise; the first synchronization device comprises a first motor and a first toothed synchronous belt in transmission connection with the first motor, and the second synchronization device comprises a second motor and a second toothed synchronous belt in transmission connection with the second motor, the side edges of the first and second toothed synchronous belts away from the first box feeding channel are provided with tensioning wheels; the first and second toothed synchronous belts are adapted to be in synchronous contact with the two side surfaces of the cosmetic box at the inlet of the first box feeding channel to drive the cosmetic box to move in the first box feeding channel and drive the cosmetic box to turn over at the stop block; the rear end of the first box feeding channel is provided with a transition track, the two sides of the transition track are respectively provided with stop plates, the stop plates are adjustably arranged on the two sides of the transition track, so that the distance between the stop plates is adjustable; the rear end of the transition track is provided with the box pushing mechanism, the box pushing mechanism comprises a cylinder push hand perpendicular to the transition track, the movable end of the cylinder push hand is provided with a movable push plate, and the movable push plate is adjustably arranged on the cylinder push hand in the forward and backward directions of the transition track; the cylinder push hand is adapted to drive the movable push plate to push the cosmetic box located in front of the movable push plate in a direction perpendicular to the transition track to the next station; the connection between the transition track and the box pushing mechanism is provided with left and right guide plates, and the left and right guide plates are adjustably arranged in the forward and backward directions of the transition track; the movable push plate further comprises a first auxiliary plate perpendicular thereto, the first auxiliary plate is perpendicular to the end of the movable push plate close to the right guide plate and extends in a direction towards the cylinder push hand; the end of the left guide plate close to the movable push plate is provided with a second auxiliary plate arranged vertically, the second auxiliary plate extends in a direction away from the cylinder push hand, and the first auxiliary plate is located at the front end of the second auxiliary plate in the direction of the transition track.

2. The three-dimensional wrapping machine according to claim 1, characterized in that, The front end of the heating mechanism is provided with a second box feeding channel, the two sides of the connection between the second box feeding channel and the box pushing mechanism are provided with box pushing guide plates, and the box pushing guide plates extend to the side stop plates of the previous station; the end of the box pushing guide plate close to the box pushing mechanism is provided with an arc-shaped structure with an arc opening outward.

3. The three-dimensional wrapping machine according to claim 2, characterized in that, The second box feeding channel is provided with a film guiding and box pressing plate, which is arranged close to the heating mechanism.

4. The three-dimensional wrapping machine according to claim 1, characterized in that, The two air ports of the lifting cylinder are respectively provided with a three-way joint, and the two air ports of the push hand cylinder are respectively connected to the three-way joint through air pipes.

5. The three-dimensional wrapping machine according to claim 1, characterized in that, The push hand cylinder is arranged on a fixed mounting seat, and the push hand cylinder is adjustably fixed on the fixed mounting seat.

6. The three-dimensional wrapping machine according to claim 1, characterized in that, A nylon push disc is arranged on the movable end of the push hand cylinder.

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