Packaging tray winding machine
The packaging machine addresses loose packaging and manual cutting issues by using sliding rails and limit position rollers for secure wrapping and automated cutting, ensuring stable and efficient packaging.
Patent Information
- Application Number
- CN202510712396.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2025-07-15
AI Technical Summary
During the packaging process of existing pallet winding machines, the packaging of the goods is loose due to centrifugal force or rotation, and it is inconvenient to cut manually after coating.
The limit roller structure and electric push rod system are adopted to limit the cargo through the limit roller, and the wound film is automatically cut and wound after coating to avoid cargo shaking and manual cutting.
The stability and tightness of the goods during the packaging process are achieved, shaking is reduced, and the wrapping film is automatically cut and improved packaging efficiency.
Smart Images
Figure CN120308398A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of packaging wrapping, in particular to a packaging tray wrapping machine. Background Art
[0002] Food needs to be packaged after production. When transporting and packaging, multiple food products need to be piled together and then packaged on the entire surface. Traditional small packages are packaged with tape, while large-volume overall packages are packaged using a packaging pallet wrapping machine.
[0003] Pallet wrapping machines are generally divided into fixed pallets and rotating pallets. Fixed pallets are pallets that are fixed and the wrapping machine rotates to pack, while rotating pallets are pallets that rotate and the wrapping machine does not move to pack. The present invention mainly improves the rotating pallet.
[0004] The existing pallet wrapping machine places the goods to be packaged on a pallet, fixes one end of the wrapping film on the goods, and then rotates the pallet to drive the goods to rotate, thereby wrapping the wrapping film on the goods. During wrapping, the wrapping film roll moves up and down to wrap the wrapping film around the entire goods.
[0005] However, when the goods are coated and packaged by the pallet wrapping machine, the pallet drives the goods to rotate. Generally, multiple goods are piled together. When rotating, the goods will move outward due to centrifugal force or shaking caused by rotation, resulting in loose packaging and loose packing, which will cause the coated goods to shake during subsequent transportation.
[0006] After the lamination is completed, the staff is required to manually cut the stretch film and place the cut end on the goods. The cut end will be bunched together, which will cause the stretch film covering the surface of the goods to fall off during transportation, affecting the lamination effect.
[0007] On this basis, the present invention provides a packaging tray wrapping machine to solve the above problems. Summary of the invention
[0008] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a packaging pallet wrapping machine. The present invention has an ingenious structure and focuses on practicality. It effectively solves the technical problems of the existing pallet wrapping machine during packaging, such as the movement of goods causing the packaging to shake, and the inconvenience of manual cutting after packaging.
[0009] A packaging tray winding machine, comprising a base and a vertical frame, characterized in that a cantilever is fixedly connected to the top of the vertical frame, the other end of the cantilever is fixedly connected to a fixing plate, and two first slide rail frames and two second slide rail frames are fixedly connected to both sides of the top of the fixing plate. A first slide rod and a second slide rod are respectively slidably connected in the first slide rail frame and the second slide rail frame, and the first slide rail frame and the second slide rail frame both limit the first slide rod and the second slide rod through tension springs; The other ends of the first slide rod and the second slide rod are respectively connected with a rotatable first limiting roller and a rotatable second limiting roller, and the first limiting roller and the second limiting roller cooperate with each other to limit the film-covered goods; A rotatable semi-circular protective shell is arranged on one side of the second limiting roller. Two freely movable pressure rollers are arranged in the protective shell, and the two pressure rollers cooperate with each other. A cutting knife is installed in the protective shell, and the cutting knife is located between the two pressure rollers.
[0010] Preferably, a rotatable turntable is arranged on the top of the base, the vertical frame is arranged on one side of the base, a liftable fixing frame is installed on one side of the vertical frame, and a mounting roller and two guiding rollers are rotatably installed on the fixing frame, and the mounting roller cooperates with the two guiding rollers.
[0011] Preferably, the two tension springs are respectively located in the first slide rail frame and the second slide rail frame. One ends of the two tension springs are respectively connected to one side of the inner walls of the first slide rail frame and the second slide rail frame, and the other ends of the two tension springs are respectively connected to one ends of the first slide rod and the second slide rod.
[0012] Preferably, chutes are respectively opened on the sides of the first slide rail frame and the second slide rail frame away from the cantilever. Sliders are respectively connected to the sides of the first slide rod and the second slide rod close to the chutes, and the two sliders are respectively slidably connected in the two chutes. Blocks are respectively connected to the sides of the two sliders away from the cantilever; A bidirectional electric push rod is fixedly connected to the top of the fixing plate. The extending ends of the bidirectional electric push rod are respectively located on one side of the first slide rail frame and the second slide rail frame, and two extending ends of the bidirectional electric push rod are both connected with push block mechanisms that cooperate with the blocks.
[0013] Preferably, the push block mechanism includes trapezoidal outer shells fixedly connected to the bidirectional electric push rod. One sides of the two outer shells away from each other are completely open states. Wedge-shaped blocks that can rotate are arranged in the two outer shells, and the two wedge-shaped blocks respectively cooperate with the two blocks.
[0014] Preferably, adjustment slots are formed in both of the outer shells. The directions of the two adjustment slots are perpendicular to the first slide rail frame and the second slide rail frame respectively. Adjustment rods are slidably connected in the two adjustment slots. The two wedge-shaped blocks are respectively rotatably connected to the two adjustment rods. Springs are arranged between one side of the inner walls of the two outer shells and the two wedge-shaped blocks. Both of the two springs are in an inclined state to limit the wedge-shaped blocks.
[0015] Preferably, the other ends of the first slide rod and the second slide rod are respectively fixedly connected with a first limiting frame and a second limiting frame. The first limiting roller and the second limiting roller are respectively rotatably connected to the first limiting frame and the second limiting frame. A gap is reserved between the second limiting frame and the second limiting roller to enable the winding film to smoothly pass through the gap between the second limiting frame and the second limiting roller.
[0016] Preferably, a chute hole is formed in the upper end of the second slide rail frame. A rotating rod is slidably connected in the chute hole. One end of the rotating rod is rotatably connected with an adjustment rod. The other end of the rotating rod is located on one side of the second slide rail frame. An extension plate is fixed at the end of the rotating rod. A push-pull rod matched with the extension plate is fixed on the upper end of the outer shell. The end of the adjustment rod is integrally connected with an arc-shaped rotating frame. A pin shaft seat is fixed at the top of the second slide rod. A coil spring is sleeved on the pin shaft seat. The adjustment rod is rotatably connected to the pin shaft seat. The bottom of the other side of the rotating frame is fixedly connected with a rotating shaft. The protective shell is rotatably connected to the bottom end of the rotating shaft.
[0017] Preferably, two moving slots are formed in both the top and the bottom of the protective shell. The moving slots at the top of the protective shell and the moving slots at the bottom of the protective shell are matched with each other. The roller shaft parts at both ends of the two pressure rollers are slidably connected in the upper and lower moving slots. Both of the two pressure rollers partially protrude out of the protective shell in the direction of the second limiting roller.
[0018] Preferably, fixed sleeves are connected to both ends of the two pressure rollers. The fixed sleeves are respectively located at the top and the bottom of the protective shell. Fixed seats are fixedly connected to both the top and the bottom of the protective shell. Magnetic blocks are connected to the opposite sides of the multiple fixed sleeves and the multiple fixed seats respectively. The fixed sleeves and the fixed seats are matched with each other. The directions of the magnetic blocks fixedly connected to the fixed sleeves and the fixed seats are in opposite states, which can push the two pressure rollers close to the other side of the moving slots to limit the pressure rollers.
[0019] The present invention has the following technical effects.
[0020] 1. The present invention limits the first limiting roller and the second limiting roller by setting a first sliding rod, a second sliding rod and a tension spring. When the placed goods rotate, the first limiting roller and the second limiting roller can be attached to the surface of the goods, thereby limiting the goods and preventing the goods from moving out due to the centrifugal force of rotation. By setting a two-way electric push rod, a housing, a wedge-shaped block and a spring, after the goods are covered with a film, the first sliding rod and the second sliding rod are pushed to move away from each other, increasing the space between the first limiting roller and the second limiting roller, facilitating the removal of the goods covered with a film, and placing the goods to be covered with a film next time on the turntable, making the goods more stable during the overall packaging, not easy to shake, and the packaging more compact.
[0021] 2. The present invention pushes the protective shell to approach the second limiting roller by setting a rotating rod and a rotating frame, so that the cutting knife in the protective shell cuts the winding film after the film covering is completed. By setting a pressure roller, a fixing sleeve, a fixing seat and a magnet, during the process of the cutting knife approaching the second limiting roller, the pressure roller first contacts the second limiting roller to press the passing winding film, facilitating subsequent cutting operations and avoiding the winding film being grouped together caused by manual cutting. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 It is a schematic structural diagram of the first three-dimensional view of the present invention.
[0023] Figure 2 It is a partial schematic structural diagram of the three-dimensional section of the present invention.
[0024] Figure 3 For the present invention Figure 1 It is a schematic structural diagram of the top view of the support plate in the
[0025] Figure 4 It is a schematic structural diagram of the second three-dimensional view of the present invention.
[0026] Figure 5 For the present invention Figure 4 It is a schematic enlarged structural diagram of part A in the
[0027] Figure 6 For the present invention Figure 4 It is a schematic enlarged structural diagram of part B in the
[0028] Figure 7 For the present invention Figure 2 It is a schematic structural diagram of the rotating frame in the
[0029] Figure 8 For the present invention Figure 1Schematic structural diagram of the first limiting roller and the second limiting roller in the present invention.
[0030] Figure 9 In the present invention Figure 7 Schematic enlarged structural diagram of part C in the present invention.
[0031] Reference numerals: 1. Base; 2. Turntable; 3. Upright frame; 4. Fixed frame; 5. Mounting roller; 6. Guide roller; 7. Cantilever; 8. Fixed plate; 9. First slide rail frame; 10. Second slide rail frame; 11. First slide bar; 12. Second slide bar; 13. Chute; 14. Slide block; 15. Stopper; 16. Tension spring; 17. Double-directional electric push rod; 18. Outer shell; 19. Adjustment groove; 20. Adjustment rod; 21. Wedge block; 22. Spring; 23. First limiting frame; 24. First limiting roller; 25. Second limiting frame; 26. Second limiting roller; 27. Rotating rod; 28. Pin shaft seat; 29. Rotating frame; 30. Rotating shaft; 31. Protective shell; 32. Moving groove; 33. Pressing roller; 34. Fixed sleeve; 35. Fixed seat; 36. Magnet; 37. Cutting knife; 38. Chute hole; 39. Adjustment rod; 40. Extension plate; 41. Push-pull rod; 42. Torsion spring. Detailed implementation manners
[0032] Regarding the foregoing and other technical contents, features and effects of the present invention, they will be clearly presented in the following detailed description of the embodiments in conjunction with the accompanying drawings. The contents mentioned in the following embodiments are all with reference to the drawings of the specification. Figures 1 to 9 In the following detailed description of the embodiments with reference to the accompanying drawings, the present invention will be clearly presented. The contents mentioned in the following embodiments are all with reference to the drawings of the specification.
[0033] The exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
[0034] As an embodiment, a packaging tray winding machine includes a base 1 and an upright frame 3, as Figure 1, the base 1 is circular and can rotate. The vertical frame 3 is vertically arranged on one side of the base 1. The top of the vertical frame 3 is fixedly connected with a cantilever 7. The other end of the cantilever 7 is fixedly connected with a fixing plate 8. On both sides of the top of the fixing plate 8, a first slide rail frame 9 and a second slide rail frame 10 are fixedly connected. The sides of the first slide rail frame 9 and the second slide rail frame 10 away from each other are in an open state. A first slide rod 11 and a second slide rod 12 are respectively slidably connected in the first slide rail frame 9 and the second slide rail frame 10. The first slide rail frame 9 and the second slide rail frame 10 both limit the first slide rod 11 and the second slide rod 12 through tension springs 16. The other ends of the first slide rod 11 and the second slide rod 12 are respectively provided with rotatable first limiting rollers 24 and second limiting rollers 26. The first limiting rollers 24 and the second limiting rollers 26 cooperate with each other to limit the goods covered with a film. On one side of the second limiting roller 26, there is a rotatable semi-circular protective shell 31. Inside the protective shell 31, there are two freely movable pressure rollers 33. The two pressure rollers 33 cooperate to press the passing winding film. A cutting knife 37 is connected inside the protective shell 31. The cutting knife 37 is located between the two pressure rollers 33.
[0035] On the top of the base 1, there is a rotatable turntable 2. The turntable 2 is driven by a motor, a belt and gears. As Figure 4 shown, it is the prior art and will not be elaborated here. The vertical frame 3 is connected to one side of the base 1. On one side of the vertical frame 3, there is a vertically movable fixing frame 4. The height of the fixing frame 4 is adjusted by the motor and chain arranged on the vertical frame 3. As Figure 4 shown, it is the prior art and will not be elaborated here. The fixing frame 4 is rotatably connected with an installation roller 5 and two guiding rollers 6. Through the installation roller 5, the winding film roll used for covering the goods with a film is installed and limited, and the winding film roll can rotate freely, which is convenient for subsequent film covering operation. The installation roller 5 cooperates with the two guiding rollers 6.
[0036] The two tension springs 16 are respectively located inside the first slide rail frame 9 and the second slide rail frame 10. One ends of the two tension springs 16 are respectively connected to one side of the inner walls of the first slide rail frame 9 and the second slide rail frame 10. The other ends of the two tension springs 16 are respectively connected to one ends of the first slide rod 11 and the second slide rod 12.
[0037] As Figure 2 and Figure 3 , on the sides of the first slide rail frame 9 and the second slide rail frame 10 away from the cantilever 7, chutes 13 are respectively opened. On the sides of the first slide rod 11 and the second slide rod 12 close to the chutes 13, sliding blocks 14 are fixedly connected. The two sliding blocks 14 are respectively slidably connected in the two chutes 13. On the sides of the two sliding blocks 14 away from the cantilever 7, stoppers 15 are connected.
[0038] A two-way electric push rod 17 is connected to the top of the fixed plate 8. The two-way electric push rod 17 is connected to a controller and a power supply. The two-way electric push rod 17 is located on one side of the first slide rail frame 9 and the second slide rail frame 10. Push block mechanisms are connected to both output ends of the two-way electric push rod 17 and cooperate with the stoppers 15.
[0039] In this embodiment, the two sides of the two-way electric push rod 17 are controlled to extend outwards. After the push block mechanism contacts the stopper 15, it continues to push the stopper 15 to move outwards, and at the same time drives the first limiting roller 24 and the second limiting roller 26 to move to both sides, thereby adjusting the distance between the first limiting roller 24 and the second limiting roller 26. Then, a forklift is used to place the goods stacked on the shelf as a whole on the pallet 2, and then the two-way electric push rod 17 is slowly retracted. Under the action of the tension spring 16, the push block 15 slowly retracts in cooperation with the push block mechanism until the first limiting roller 24 and the second limiting roller 26 contact the goods and are blocked. The two-way electric push rod 17 continues to retract to the initial state. The winding film is passed through the two guiding rollers 6 and then attached to the goods. The motor is started to drive the turntable 2 to rotate, and at the same time the motor is started to drive the fixed frame 4 to move up and down on the vertical frame 3. As the goods drive the rotation of the winding film, the winding film on the mounting roller 5 is released to pack the goods. As the goods rotate, the first limiting rollers 24 and the second limiting rollers 26 on both sides always adhere to the goods under the action of the tension spring 16 to limit the goods, and at the same time when the winding film is wound, the first limiting rollers 24 and the second limiting rollers 26 give the winding film a force that always adheres to the goods under the action of the tension spring 16, ensuring that the winding film does not loosen when winding the goods and maintaining the stability during the packing of the goods.
[0040] As an embodiment, the push block mechanism includes a trapezoidal outer shell 18 fixedly connected to the two-way electric push rod 17, as Figure 3 , Figure 5 and Figure 6 . The two sides of the two outer shells 18 away from each other are in a completely open state, which is convenient for the wedge block 21 to contract into the outer shell 18 when it rotates. Rotatable wedge blocks 21 are arranged in the two outer shells 18. The two wedge blocks 21 are respectively matched with the two stoppers 15. The stoppers 15 are trapezoidal, and the inclined surface on one side is matched with the inclined surface on one side of the wedge block 21.
[0041] Adjustment slots 19 are provided on both of the two outer shells 18. The directions of the two adjustment slots 19 are perpendicular to the first slide rail frame 9 and the second slide rail frame 10 respectively. Adjustment rods 20 are slidably connected in the two adjustment slots 19. Two wedge-shaped blocks 21 are respectively rotatably connected to the two adjustment rods 20. Springs 22 are provided between one side of the inner walls of the two outer shells 18 and the two wedge-shaped blocks 21. The springs 22 are located between the wedge-shaped blocks 21 and the inner walls of the outer shells 18 and are inclined at an angle of 45°. Thus, when the wedge-shaped blocks 21 push the adjustment rods 20 to slide in the adjustment slots 19, the wedge-shaped blocks 21 can be pushed to reset. When the wedge-shaped blocks 21 rotate on the adjustment rods 20 toward the open side of the outer shells 18, the wedge-shaped blocks 21 can also be pushed to rotate and reset by the springs 22. The two springs 22 are both in an inclined state to limit the wedge-shaped blocks 21.
[0042] The other ends of the first slide rod 11 and the second slide rod 12 are respectively connected with a first limit frame 23 and a second limit frame 25. A first limit roller 24 and a second limit roller 26 are respectively rotatably connected to the first limit frame 23 and the second limit frame 25. The first limit roller 24 and the second limit roller 26 are located between the first limit frame 23 and the second limit frame 25. There is a gap between the second limit frame 25 and the second limit roller 26, so that the winding film can smoothly pass between the second limit frame 25 and the second limit roller 26.
[0043] In this embodiment, when the bidirectional electric push rod 17 drives the outer shells 18 on both sides to move, the wedge-shaped blocks 21 contact the stoppers 15. Since one end of the outer shell 18 blocks the rotation of the wedge-shaped blocks 21, the first slide rod 11 and the second slide rod 12 are pushed. When the stopper 15 moves to the end of the chute 13, the wedge-shaped blocks 21 continue to push the stopper 15. At this time, since the stopper 15 cannot move further, the adjustment rods 20 on the wedge-shaped blocks 21 are forced to slide in the adjustment slots 19, so that the wedge-shaped blocks 21 no longer contact the stoppers 15 and can pass smoothly. When the wedge-shaped blocks 21 pass the stoppers 15, the wedge-shaped blocks 21 drive the wedge-shaped blocks 21 to reset under the action of the springs 22.
[0044] When the goods rotate, since the first limit roller 24 and the second limit roller 26 are rotatably installed, the first limit roller 24 and the second limit roller 26 can better limit the goods, and the goods can also better pass through the first limit roller 24 and the second limit roller 26 when rotating without being blocked.
[0045] As an embodiment, such as Figure 3, a chute hole 38 is provided at the upper end of the second slide rail frame 10. A rotating rod 27 is slidably connected in the chute hole 38. One end of the rotating rod 27 is rotatably connected to an adjusting rod 39. The other end of the rotating rod 27 is placed on one side of the second slide rail frame 10. An extension plate 40 is fixed at the end of the rotating rod 27. On the upper end of the outer shell 18 corresponding to the side of the rotating rod 27, a push-pull rod 41 cooperating with the extension plate 40 is fixed. The end of the adjusting rod 39 is integrally connected with an arc-shaped rotating frame 29. A pin shaft seat 28 is fixed at the top of the second slide rod 12. A coil spring 42 is sleeved on the pin shaft seat 28. The adjusting rod 39 is rotatably connected to the pin shaft seat 28. The bottom of the other side of the rotating frame 29 is fixedly connected with a rotating shaft 30. The protective shell 31 is rotatably connected to the bottom end of the rotating shaft 30. When the rotating rod 27 is pushed, the rotating frame 29 is pushed to rotate on the pin shaft seat 28. The center of the pin shaft seat 28 is closer to the second slide rail frame 10 than the center of the second limiting roller 26. And through the rotating frame 29, when the rotating frame 29 rotates around the pin shaft seat 28, the protective shell 31 can be driven to approach the second limiting roller 26. The rotating shaft 30 is in the shape of thick at the top and thin at the bottom. The thin part at the lower part can rotate, and the thick part at the upper part limits the thin part at the lower part, so that the protective shell 31 at the bottom can only rotate by an angle of 30°, thereby limiting the protective shell 31 and enabling the two pressure rollers 33 in the protective shell 31 to be smoothly attached to the second limiting roller 26. The protective shell 31 is rotatably connected to the bottom end of the rotating shaft 30.
[0046] Such as Figure 7 and Figure 9 , two moving grooves 32 are provided at both the top and bottom of the protective shell 31. The moving groove 32 at the top of the protective shell 31 and the moving groove 32 at the bottom of the protective shell 31 cooperate with each other. The roller shaft parts at both ends of the two pressure rollers 33 are slidably connected in the upper and lower two moving grooves 32. Both of the two pressure rollers 33 partially protrude out of the protective shell 31 towards the second limiting roller 26.
[0047] Both ends of the two pressure rollers 33 are connected with fixing sleeves 34. The fixing sleeves 34 are respectively located at the top and bottom of the protective shell 31. Fixing seats 35 are connected to both the top and bottom of the protective shell 31. Magnetic blocks 36 are connected to the opposite sides of multiple fixing sleeves 34 and multiple fixing seats 35 respectively. The two magnetic blocks 36 installed on the opposite sides of the fixing sleeve 34 and the fixing seat 35 are in opposite states. The adjacent ends of the two magnetic blocks 36 are both N poles, and the opposite ends of the two magnetic blocks 36 are both S poles. Thus, through the principle of like poles repelling each other, the pressure rollers 33 are always pushed to the side of the moving groove 32 away from the fixing seat 35 until they contact the second limiting roller 26 and receive a thrust. The fixing sleeve 34 and the fixing seat 35 cooperate with each other. The directions of the magnetic blocks 36 connected to the fixing sleeve 34 and the fixing seat 35 are in opposite states, pushing the two pressure rollers 33 close to the other side of the moving groove 32 to limit the pressure rollers 33.
[0048] In this embodiment, after the packaging is completed, the bidirectional electric push rod 17 is activated, causing the wedge block 21 to continue moving after contacting the stop block 15. During the process of the wedge block 21 pushing the stop block 15 to move, the rotating rod 27 slides within the chute hole 38. Therefore, the second sliding rod 12 drives the rotating frame 29 to move outward together until the wedge block 21 passes through the stop block 15. At this time, the second sliding rod 12 and the rotating frame 29 no longer move outward, while the wedge block 21 continues to move and contacts the extension plate 40, thereby pushing the rotating rod 27 to continue moving within the chute hole 38. The rotating rod 27 will start to push the rotating frame 29 to rotate, causing the protective shell 31 to start rotating. When the pressure roller 33 rotates and contacts the second limit roller 26, the two pressure rollers 33 move backward within the moving groove 32, exposing the cutting knife 37 for cutting the winding film. After the goods are removed, the bidirectional electric push rod 17 retracts, and the rotating frame 29 drives the protective shell 31 to reset under the action of the coil spring 42, while the pressure roller 33 resets under the action of the magnetic block 36.
[0049] The working principle and usage process of the present invention.
[0050] When the present invention is in use, first, the bidirectional electric push rod 17 pushes the stop block 15 to both sides through the push block mechanism. The staff places the goods to be covered with film at the center position of the turntable 2 through a working vehicle, and then controls the electric push rod 17 to slowly retract. Due to the pulling force of the tension spring 16, the first sliding rod 11 and the second sliding rod 12 will slowly reset within the first slide rail frame 9 and the second slide rail frame 10, thereby driving the first limit roller 24 and the second limit roller 26 to approach each other until the first limit roller 24 and the second limit roller 26 contact the surface of the placed goods. Since the first sliding rod 11 and the second sliding rod 12 are controlled separately by two tension springs 16, they can be used when placing goods of different shapes. The bidirectional electric push rod 17 continues to slowly reset.
[0051] During the operation process, when the second slide rail frame 10 moves, the rotating rod 27 slides within the chute hole 38, and the rotating frame 29 moves along with the second slide rail frame 10.
[0052] The staff places the winding film roll on the installation roller 5, limits one end of the winding film through the guide roller 6, then inserts one end of the winding film into the space between the second limit roller 26 and the second limit frame 25, places one end of the winding film between the second limit roller 26 and the goods. The side of the winding film close to the goods adheres to the surface of the goods and is pressed by the second limit roller 26.
[0053] Through the drive component arranged inside the base 1, the turntable 2 is driven to rotate on the base 1. Taking counterclockwise rotation as an example, the goods placed on the turntable 2 are driven to rotate counterclockwise. When the goods rotate counterclockwise, the first limiting roller 24 and the second limiting roller 26 are attached to the surface of the goods and rotate clockwise synchronously. During the continuous rotation of the goods, the second limiting roller 26 rotates synchronously to cover the winding film on the surface of the goods. During the process of the turntable 2 driving the goods to continuously rotate, the placed goods may separate and shift due to centrifugal force or shaking, and through the first limiting roller 24 and the second limiting roller 26 closely cooperating with the goods to rotate, the position of the shifted goods is corrected, enabling the goods to return to their original positions, facilitating the film covering operation, and effectively avoiding a large number of gaps between the goods during film covering, resulting in the subsequent movement of the goods inside the winding film during transportation. Through the lifting mechanism on the vertical frame 3, the fixed frame 4 is driven to rise or fall, thereby driving the winding film roll placed on the mounting roller 5 to rise or fall, performing a comprehensive film covering operation on the placed goods, and being used for goods of different heights. After the film covering is completed, the turntable 2 stops rotating.
[0054] When the packaging is completed, by supplying power to the double - acting electric push rod 17, the two output ends of the double - acting electric push rod 17 extend simultaneously, driving the two outer shells 18 to move away from each other. When the two outer shells 18 move away from each other, the extended parts of the wedge - shaped blocks 21 in the two outer shells 18 first come into contact with the two stoppers 15. Through the synchronous movement of the two wedge - shaped blocks 21, the two stoppers 15 are pushed to move away from each other. By the two stoppers 15, the two sliders 14 are driven to slide away synchronously in the chutes 13 on one side of the first slide rail frame 9 and the second slide rail frame 10, thereby driving the first slide rod 11 to slide away in the first slide rail frame 9 and the second slide rod 12 to slide away in the second slide rail frame 10. The rotating frame 29 follows the movement of the second slide rail frame 10 to pull the tension springs 16 in the first slide rail frame 9 and the second slide rail frame 10, thereby causing the tension springs 16 to undergo elastic deformation and generating a reverse acting force on the first slide rod 11 and the second slide rod 12, thereby driving the first limiting roller 24 and the second limiting roller 26 at the other ends of the first slide rod 11 and the second slide rod 12 to move away from each other, causing the first limiting roller 24 and the second limiting roller 26 to disengage from the goods after film covering on the turntable 2.
[0055] When the stopper 15 moves to the end of the chute 13 and the rotating rod 27 has not yet moved to the end of the chute hole 38, the wedge - shaped block 21 is squeezed by the stopper 15 and moves backward, so that the wedge - shaped block 21 continues to move through the stopper 15. When the wedge - shaped block 21 contacts the extension plate 40, it pushes the rotating rod 27 to continue moving in the chute hole 38. At this time, the rotating frame 29 stops moving, so that the rotating rod 27 pushes the rotating frame 29 to start rotating.
[0056] When the rotating frame 29 rotates, it drives the protective shell 31 at the bottom to rotate and approach the second limiting roller 26. The two pressure rollers 33 in the protective shell 31 first come into contact with the second limiting roller 26. During the continuous rotation of the rotating frame 29, the protective shell 31 continues to approach the second limiting roller 26. The two pressure rollers 33 are pushed by the second limiting roller 26, so that the two pressure rollers 33 slide synchronously in the two moving grooves 32, and the two pressure rollers 33 gradually enter the protective shell 31, so that the cutting knife 37 extends between the two pressure rollers 33, and the cutting knife 37 contacts the winding film, so as to cut the winding film passing through the surface of the second limiting roller 26. After the cutting is completed, the staff can move the goods after film covering on the turntable 2 out by means of a working vehicle. The double-direction electric push rod 17 returns, and the rotating frame 29 resets under the action of the coil spring 42.
[0057] The protective shell 31 rotates in reverse, driving the two pressure rollers 33 to separate from the second limiting roller 26. The magnets 36 on one side of the fixing sleeve 34 on the two pressure rollers 33 are affected by the magnets 36 on one side of the fixing seat 35 on the protective shell 31. According to the principle of like-sex repulsion, the two pressure rollers 33 are pushed to move synchronously and reversely in the two moving grooves 32, driving the two pressure rollers 33 to gradually reset, performing a storage operation on the cutting knife 37, and making the cutting knife 37 gradually enter between the two pressure rollers 33.
[0058] During the resetting process of the push block mechanism, the wedge-shaped blocks 21 protruding from one side of the two outer shells 18 first come into contact with the two stoppers 15. The stoppers 15 move to the other end of the sliding groove 13. Therefore, the wedge-shaped blocks 21 on one side of the outer shell 18 cannot push the stoppers 15. When the double-direction electric push rod 17 pulls the outer shells 18 to approach each other, the stoppers 15 block the wedge-shaped blocks 21, causing the wedge-shaped blocks 21 to rotate towards the open side of the outer shell 18 in the adjusting groove 19, squeezing the spring 22, so that the wedge-shaped blocks 21 can pass through the stoppers 15 smoothly. The two wedge-shaped blocks 21 enter between the two stoppers 15. After the wedge-shaped blocks 21 enter between the two stoppers 15, the spring 22 pushes the wedge-shaped blocks 21, causing the wedge-shaped blocks 21 to reset again, and finally completing the reset of the double-direction electric push rod 17.
[0059] The present invention has the following technical effects.
[0060] 1. The present invention limits the first limiting roller and the second limiting roller by setting a first sliding rod, a second sliding rod and a tension spring. When the placed goods rotate, the first limiting roller and the second limiting roller can fit on the surface of the goods, thereby limiting the goods and preventing the goods from moving out due to the centrifugal force of rotation. By setting a bidirectional electric push rod, a housing, a wedge-shaped block and a spring, after the goods are covered with a film, the first sliding rod and the second sliding rod are pushed away from each other, increasing the space between the first limiting roller and the second limiting roller, facilitating the removal of the goods covered with a film, and placing the goods to be covered with a film next time on the turntable, making the goods more stable during the overall packaging, not easy to shake, and the packaging more compact.
[0061] 2. The present invention pushes the protective shell closer to the direction of the second limiting roller by setting a rotating rod and a rotating frame, so that the cutting knife in the protective shell cuts the winding film after the film covering is completed. By setting a pressing roller, a fixed sleeve, a fixed seat and a magnet block, during the process of the cutting knife approaching the second limiting roller, the pressing roller first contacts the second limiting roller to press the passing winding film, facilitating subsequent cutting operations and avoiding the winding film being grouped together caused by manual cutting.
[0062] Although the content of the present invention has been introduced in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. After those skilled in the art have read the above content, various modifications and substitutions of the present invention will be obvious. Therefore, the protection scope of the present invention should be defined by the appended claims.
Claims
1. A packaging pallet winding machine, comprising a base (1) and a vertical frame (3), characterized in that, The top of the vertical frame (3) is fixedly connected with a cantilever (7), the other end of the cantilever (7) is fixedly connected with a fixed plate (8), the two sides of the top of the fixed plate (8) are fixedly connected with a first slide rail frame (9) and a second slide rail frame (10), a first slide rod (11) and a second slide rod (12) are respectively slidably connected in the first slide rail frame (9) and the second slide rail frame (10), and the first slide rail frame (9) and the second slide rail frame (10) limit the first slide rod (11) and the second slide rod (12) through tension springs (16); The other ends of the first slide rod (11) and the second slide rod (12) are respectively connected with a rotatable first limiting roller (24) and a second limiting roller (26), and the first limiting roller (24) and the second limiting roller (26) cooperate with each other to limit the covered goods; One side of the second limiting roller (26) is provided with a rotatable semi-circular protective shell (31), two freely movable pressure rollers (33) are arranged in the protective shell (31), the two pressure rollers (33) cooperate with each other, and a cutting knife (37) is installed in the protective shell (31), and the cutting knife (37) is located between the two pressure rollers (33).
2. The wrapping machine for a packaging tray according to claim 1, wherein, A rotatable turntable (2) is arranged on the top of the base (1), the vertical frame (3) is arranged on one side of the base (1), a liftable fixed frame (4) is installed on one side of the vertical frame (3), and a mounting roller (5) and two guide rollers (6) are rotatably installed on the fixed frame (4), and the mounting roller (5) cooperates with the two guide rollers (6).
3. A wrapping pallet machine according to claim 1, characterized in that, The two tension springs (16) are respectively located in the first slide rail frame (9) and the second slide rail frame (10), one ends of the two tension springs (16) are respectively connected to one side of the inner walls of the first slide rail frame (9) and the second slide rail frame (10), and the other ends of the two tension springs (16) are respectively connected to one ends of the first slide rod (11) and the second slide rod (12).
4. The wrapping machine for packaging pallets according to claim 1, characterized in that, Chutes (13) are respectively opened on the sides of the first slide rail frame (9) and the second slide rail frame (10) away from the cantilever (7), sliders (14) are respectively connected to the sides of the first slide rod (11) and the second slide rod (12) close to the chutes (13), the two sliders (14) are respectively slidably connected in the two chutes (13), and stoppers (15) are respectively connected to the sides of the two sliders (14) away from the cantilever (7); A bidirectional electric push rod (17) is fixedly connected to the top of the fixed plate (8), the extending ends of the bidirectional electric push rod (17) are respectively located on one side of the first slide rail frame (9) and the second slide rail frame (10), and push block mechanisms cooperating with the stoppers (15) are connected to the two extending ends of the bidirectional electric push rod (17).
5. The wrapping machine for a packaging tray according to claim 4, wherein The push block mechanism includes a trapezoidal outer shell (18) fixedly connected to the bidirectional electric push rod (17), the two sides of the two outer shells (18) away from each other are in a completely open state, and wedge-shaped blocks (21) capable of rotating are arranged in the two outer shells (18), and the two wedge-shaped blocks (21) respectively cooperate with the two stoppers (15).
6. The wrapping machine for a packaging tray according to claim 5, wherein, Adjustment slots (19) are provided on both of the two outer shells (18). The directions of the two adjustment slots (19) are perpendicular to the first slide rail frame (9) and the second slide rail frame (10) respectively. Adjustment rods (20) are slidably connected in the two adjustment slots (19). Two wedge-shaped blocks (21) are respectively rotatably connected to the two adjustment rods (20). Springs (22) are provided between one side of the inner walls of the two outer shells (18) and the two wedge-shaped blocks (21). The two springs (22) are both in an inclined state to limit the wedge-shaped blocks (21).
7. A wrapping machine for a packaging tray according to claim 1, wherein, The other ends of the first slide rod (11) and the second slide rod (12) are respectively fixedly connected with a first limit frame (23) and a second limit frame (25). A first limit roller (24) and a second limit roller (26) are respectively rotatably connected to the first limit frame (23) and the second limit frame (25). A gap is reserved between the second limit frame (25) and the second limit roller (26) to enable the winding film to smoothly pass through the gap between the second limit frame (25) and the second limit roller (26).
8. A wrapping machine for packaging pallets according to claim 6, characterized in that, A chute hole (38) is provided at the upper end of the second slide rail frame (10). A rotating rod (27) is slidably connected in the chute hole (38). One end of the rotating rod (27) is rotatably connected with an adjustment rod (39). The other end of the rotating rod (27) is placed on one side of the second slide rail frame (10). An extension plate (40) is fixed at the end of the rotating rod (27). A push-pull rod (41) matched with the extension plate (40) is fixed at the upper end of the outer shell (18). An arc-shaped rotating frame (29) is integrally connected to the end of the adjustment rod (39). A pin shaft seat (28) is fixed at the top of the second slide rod (12). A coil spring (42) is sleeved on the pin shaft seat (28). The adjustment rod (39) is rotatably connected to the pin shaft seat (28). A rotating shaft (30) is fixedly connected to the bottom of the other side of the rotating frame (29). The protective shell (31) is rotatably connected to the bottom end of the rotating shaft (30).
9. The wrapping machine for packaging trays according to claim 8, characterized in that, Two moving slots (32) are provided at the top and bottom of the protective shell (31). The moving slots (32) at the top of the protective shell (31) and the moving slots (32) at the bottom of the protective shell (31) are matched. The roller shaft parts at both ends of the two pressure rollers (33) are slidably connected in the upper and lower moving slots (32). The two pressure rollers (33) both partially protrude out of the protective shell (31) towards the direction of the second limit roller (26).
10. A wrapping pallet machine according to claim 9, characterized in that, Both ends of the two pressing rollers (33) are connected with fixing sleeves (34), the fixing sleeves (34) are respectively located at the top and bottom of the protective shell (31), fixing seats (35) are fixedly connected to both the top and bottom of the protective shell (31), magnetic blocks (36) are connected between the opposite sides of the multiple fixing sleeves (34) and the multiple fixing seats (35), the fixing sleeves (34) cooperate with the fixing seats (35), and the directions of the magnetic blocks (36) fixedly connected to the fixing sleeves (34) and the fixing seats (35) are in opposite states, which can push the two pressing rollers (33) to move closer to the other side of the moving groove (32) to limit the pressing rollers (33).