Full-automatic film strapping machine

Abstract

The utility model discloses a full-automatic film strapping machine which comprises a strapping machine body, a vertical plate which vertically extends upwards is arranged in the strapping machine body, the vertical plate is in a transverse U shape, a cover plate is arranged on the surface of the strapping machine body, a notch is formed in the cover plate, a fixing plate is arranged on the vertical plate, and the fixing plate is arranged on the surface of the strapping machine body. An object sensor is arranged on one side of the fixing plate, a cutter is arranged on the other side of the fixing plate, a rotatable annular gear is arranged on one side of the vertical plate, the annular gear is in a C shape, a film wheel is arranged on one side of the annular gear, and a driving mechanism for driving the annular gear to operate is arranged on the other side of the annular gear; when the thin film strapping machine is used, an object can be strapped in a full-automatic mode, a thin film does not need to be cut off manually during strapping, in addition, an inner thin film port is not prone to being exposed during strapping, the strapping quality is guaranteed, and the thin film strapping machine is suitable for application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of film bundling, in particular to a full-automatic film bundling machine. Background Art

[0002] In many fields such as medicine, food, workpieces and equipment, products are usually packaged in boxes before leaving the factory for easy collection and transportation.

[0003] However, multiple packaging boxes are rather scattered and not easy to be stacked together for transportation; therefore, people have come up with the idea of ​​bundling multiple scattered products together through film for centralized and large-scale transportation.

[0004] However, in actual use, the current bundling methods are mostly manual or semi-automatic bundling, which is inefficient and labor-intensive for employees. In addition, manual bundling or semi-automatic bundling usually requires manual cutting of the film, which is inconvenient to use, and the internal film ports are easily exposed during bundling, affecting the bundling quality and resulting in unsatisfactory use effects. Utility Model Content

[0005] The utility model aims to solve the above problems and provide a fully automatic film strapping machine which can strap objects fully automatically without manual film cutting during strapping, and the internal film ports are not easily exposed during strapping, thereby ensuring the strapping quality.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: a fully automatic film strapping machine, including a strapping machine body, a vertical plate extending vertically upward is provided in the strapping machine body, the vertical plate is in a horizontal U-shape, a cover plate is provided on the surface of the strapping machine body, a notch is provided on the cover plate, a fixed plate is provided on the upper part of the vertical plate, an object sensor is provided on one side of the fixed plate, and a cutting knife is provided on the other side, a rotatable ring gear is provided on one side of the vertical plate, the ring gear is in a C-shape, a film wheel is provided on one side of the ring gear, and a driving mechanism for driving the ring gear to operate is provided on the other side.

[0007] Preferably, the outer circumference of the ring gear is provided with an outer limiting wheel and a lower driving gear, the inner circumference of the ring gear is provided with an inner limiting wheel, the circumference of the ring gear is provided with meshing teeth and annular recesses, the circumference of the lower driving gear is provided with an annular limiting flange, the lower driving gear cooperates with the meshing teeth and the annular recess at the same time, and the outer limiting wheel and the inner limiting wheel always rotate to contact the inner and outer walls of the ring gear.

[0008] Preferably, the driving mechanism includes two pulleys on the other side of the vertical plate, the two pulleys respectively correspond to the two lower driving gears, the two pulleys are connected by a synchronous belt, one of the pulleys is connected to the second motor, and when the second motor is running, the ring gear rotates to wrap the film wheel around and bundle it.

[0009] Preferably, a bracket is further provided in the body of the strapping machine, on which a first motor and a fixed block are provided, a gear is provided at the output end of the first motor, a rack matching the gear is provided on the fixed block, the rack can move along the fixed block, an L-shaped connecting corner is provided at the end of the rack, a horizontal telescopic rod is provided on the connecting corner, the telescopic rod passes through the fixed plate and the vertical plate and extends toward the direction of the annular gear, a movable block is provided at the end of the telescopic rod, the first motor drives the telescopic rod and the movable block to move horizontally, and the movable block presses the film onto the cutter when moving toward the vertical plate.

[0010] Preferably, an electromagnet is further provided in the strapping machine body, a retractable electromagnetic push rod is provided in the electromagnet, a spring is provided around the electromagnetic push rod, and the electromagnetic push rod passes through the fixed plate and the vertical plate and is provided with a film pushing rod for pushing the film port.

[0011] The utility model discloses a fully automatic film strapping machine, comprising a strapping machine body, wherein a vertical plate extending vertically upward is arranged in the strapping machine body, the vertical plate is in a horizontal U-shape, a cover plate is arranged on the surface of the strapping machine body, a notch is arranged on the cover plate, a fixing plate is arranged on the upper side of the vertical plate, an object sensor is arranged on one side of the fixing plate, a cutting knife is arranged on the other side, a rotatable annular gear is arranged on one side of the vertical plate, the annular gear is in a C-shape, a film wheel is arranged on one side of the annular gear, and a driving mechanism for driving the annular gear to run is arranged on the other side; compared with the prior art, the film strapping machine has the function of fully automatically strapping objects when in use, and there is no need to manually cut the film during strapping, and in addition, the internal film port is not easily exposed during strapping, thereby ensuring the beneficial effect of strapping quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The overall structure of the fully automatic film strapping machine of the utility model is shown in FIG. Figure 1 .

[0013] Figure 2 The overall structure of the fully automatic film strapping machine of the utility model is shown in FIG. Figure 2 .

[0014] Figure 3 The internal structure of the fully automatic film strapping machine of the utility model is shown in FIG. Figure 1 .

[0015] Figure 4 The internal structure of the fully automatic film strapping machine of the utility model is shown in FIG. Figure 2 .

[0016] Figure 5 The internal structure of the fully automatic film strapping machine of the utility model is shown in FIG. Figure 3 .

[0017] Figure 6 The internal structure of the fully automatic film strapping machine of the utility model is shown in FIG. Figure 4 .

[0018] Figure 7 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure 8 For this utility model Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0020] Fig. 9 For this utility model Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0021] Fig.10 For this utility model Figure 6 Schematic diagram of the enlarged structure at D in the middle.

[0022] In the figure: 1. strapping machine body; 11. bracket; 12. fixing block; 2. cover plate; 21. notch; 22. object sensor; 3. vertical plate; 31. fixing plate; 32. cutter; 4. ring gear; 41. outer limit wheel; 42. lower driving gear; 421. ring limit flange; 43. inner limit wheel; 44. ring depression; 5. film wheel; 6. first motor; 61. rack; 62. gear; 63. connecting corner; 64. telescopic rod; 65. movable block; 7. second motor; 71. pulley; 72. synchronous belt; 8. electromagnet; 81. electromagnetic push rod; 82. spring; 83. film push rod. DETAILED DESCRIPTION

[0023] The utility model is now described in further detail in conjunction with the accompanying drawings. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0024] Please refer to Figure 1-10 A fully automatic film strapping machine comprises a strapping machine body 1, wherein a vertical plate 3 extending vertically upward is arranged inside the strapping machine body 1, wherein the vertical plate 3 is in a horizontal U-shape, wherein a cover plate 2 is arranged on the surface of the strapping machine body 1, wherein a notch 21 is arranged on the cover plate 2, wherein a fixing plate 31 is arranged on the vertical plate 3, wherein an object sensor 22 is arranged on one side of the fixing plate 31, and a cutting knife 32 is arranged on the other side, wherein a rotatable ring gear 4 is arranged on one side of the vertical plate 3, wherein the ring gear 4 is in a C-shape, wherein a film wheel 5 is arranged on one side of the ring gear 4, and a driving mechanism for driving the ring gear to operate is arranged on the other side.

[0025] When in use, the object to be bundled is placed on the cover plate 2. After placement, the object sensor 22 senses the object and then the driving mechanism starts to operate. After the driving mechanism starts to operate, the ring gear 4 starts to rotate. Since the film wheel 5 is arranged on the ring gear 4, the film wheel also rotates accordingly, so that the film on the film wheel is bundled around the object, realizing fully automatic film bundling; after bundling is completed, the film is cut by the cutter 32.

[0026] In this embodiment, the outer circumference of the ring gear 4 is provided with an outer limit wheel 41 and a lower driving gear 42, and there are two outer limit wheels 41 and two lower driving gears 42, wherein the two outer limit wheels 41 are arranged at the top and the two lower driving gears 42 are arranged at the bottom, and the inner circumference of the ring gear 4 is provided with an inner limit wheel 43, the circumference of the ring gear 4 is provided with meshing teeth and an annular recess 44, the circumference of the lower driving gear 42 is provided with an annular limit flange 421, and the lower driving gear 42 cooperates with the meshing teeth and the annular recess 44 at the same time, and the outer limit wheel 41 and the inner limit wheel 43 always rotate to contact the inner and outer walls of the ring gear 4.

[0027] That is to say, the outer circumference of the ring gear 4 is provided with two outer limiting wheels 41 and two lower driving gears 42, wherein the two lower driving gears 42 cooperate with the meshing teeth on the ring gear 4, and the inner limiting wheel 43 contacts the inner circumference of the ring gear 4; therefore, when one of the lower driving gears 42 rotates, the ring gear 4 rotates through the meshing of the gears, thereby causing the film to be wrapped and bundled.

[0028] In addition, since the annular limiting flange 421 and the annular recess 44 cooperate with each other, the ring gear 4 can maintain stability during rotation.

[0029] Furthermore, the driving mechanism includes two pulleys 71 on the other side of the vertical plate 3, the two pulleys 71 correspond to the two lower drive gears 42 respectively and are coaxially connected, the two pulleys 71 are connected by a synchronous belt 72, one of the pulleys 71 is connected to the second motor 7, and after the second motor 7 is running, the pulley 71 drives the lower drive gear 42 to rotate, so that the ring gear 4 starts to rotate, so that the film wheel wraps around and ties. The whole equipment is controlled by the PLC program, and when the object sensor 22 senses the object, the strapping machine starts to strap.

[0030] In this embodiment, a bracket 11 is further provided in the strapping machine body 1, and a first motor 6 and a fixed block 12 are provided on the bracket 11. A gear 62 is provided at the output end of the first motor 6, and a rack 61 matching the gear 62 is provided on the fixed block 12. The rack 61 can move along the fixed block 12, and an L-shaped connecting corner 63 is provided at the end of the rack 61. A horizontal telescopic rod 64 is provided on the connecting corner 63. The telescopic rod 64 passes through the fixed plate 31 and the vertical plate 3 and extends toward the ring gear 4. A movable block 65 is provided at the end of the telescopic rod 64. The first motor 6 drives the telescopic rod 64 and the movable block 65 to move horizontally. When the movable block 65 moves toward the vertical plate 3, the film is pressed onto the cutter 32.

[0031] When in use, after the object sensor 22 senses the object, the first motor 6 starts to operate first. After the first motor 6 starts to operate, the telescopic rod 64 and the movable block 65 move toward the vertical plate 3. During the movement, the movable block 65 hooks the film to make it close to the cutter 32. As the movable block 65 continues to move, the end of the film is cut off. After cutting, the new film end is squeezed between the movable block 65 and the fixed plate 31 to prevent the end from loosening and falling off during bundling. After the film end is clamped, the second motor 7 starts to operate. At this time, after the second motor 7 operates, the pulley 71 drives the lower driving gear 42 to rotate, so that the ring gear 4 starts to rotate. Since the film wheel 5 is arranged on the ring gear 4, the film wheel also rotates accordingly, so that the film on the film wheel is wrapped around the object, realizing fully automatic film bundling.

[0032] During the bundling process, since one of the film ends is clamped between the movable block 65 and the fixed plate 31, the object will have two exposed film ends after bundling, which is not easy to unbundle and not beautiful. Therefore, it is necessary to wrap one of them (the first film end) into the film, so that the outermost port will be reserved for easy unbundling of the film.

[0033] Specifically, an electromagnet 8 is also provided in the strapping machine body 1, and a retractable electromagnetic push rod 81 is provided in the electromagnet 8. A spring 82 is provided around the electromagnetic push rod 81. The electromagnetic push rod 81 passes through the fixed plate 31 and the vertical plate 3 and is provided with a film pushing rod 83 for pushing the film port, wherein a V-shaped notch is provided at the end of the film pushing rod 83; the film port is pushed into the strapping track by the film pushing rod 83.

[0034] In this embodiment, the first motor and the second motor are both stepper motors, which can realize forward and reverse rotation and can be controlled by PLC program. In addition, the electromagnetic push rod utilizes the attraction and release of the moving iron core and the static iron core of the electromagnet with the push rod to realize the linear reciprocating motion of the electric push rod. It adopts power supply and controller to operate. The specific structure and principle belong to the existing technology and will not be elaborated here.

[0035] The specific working process of the fully automatic film strapping machine is as follows: Figure 3 This is the initial state of the device. In the initial state, the telescopic rod 64 and the movable block 65 extend away from the fixed plate 31, and the taut film is arranged below the telescopic rod 64;

[0036] When the object sensor 22 senses the object, the first motor 6 starts to operate first. After the first motor 6 starts to operate, the telescopic rod 64 and the movable block 65 move toward the fixed plate 31. As the movable block 65 moves, the stretched film is pulled to make it stick to the fixed plate 31. Since a cutter 32 is provided in the fixed plate 31, the stretched film will be cut by the cutter 32. At this time, the newly cut end is squeezed between the movable block 65 and the fixed plate 31. Then the second motor 7 operates to make the ring gear 4 rotate one circle. After the ring gear 4 rotates one circle, a layer of film is firstly wrapped around the surface of the object.

[0037] Then the first motor 6 runs in the reverse direction again. After the first motor 6 runs in the reverse direction, the telescopic rod 64 and the movable block 65 are pushed outward through the cooperation of the gear and the rack. After the movable block 65 is pushed, the movable block 65 is not in contact with the fixed plate 31, and the film port is released at this time.

[0038] At this time, the electromagnet 8 starts to operate, and after the operation, the electromagnetic push rod 81 extends toward the ring gear 4, and after extending, the film push rod 83 pushes the film port through the V-shaped notch, pushes the film port toward the winding track, and then retracts;

[0039] After the film pushing rod 83 pushes the film port to the bottom of the film, the second motor 7 continues to operate, and the wound film will cover the film port, and the original film port will no longer leak after covering;

[0040] When the film is bundled and needs to be cut, the first motor 6 is operated again to push the telescopic rod 64 and the movable block 65 to move outward to the original position (such as Figure 3 As shown in the figure, as the second motor 7 continues to run, the film will be wound around the object and the telescopic rod 64 at the same time. At this time, the first motor 6 pulls back the telescopic rod 64 and the movable block 65, so that the movable block 65 pulls the film to contact the cutter to cut it, thus completing the bundling.

[0041] The bundling process is simplified as follows: ① after the object sensor 22 senses the object, the first motor 6 runs to pull back the telescopic rod 64 and the movable block 65; ② the pulled back movable block 65 clamps the film on the fixed plate 31; ③ the second motor 7 runs to wrap around for one circle; ④ the first motor 6 runs to push out the movable block 65 to loosen the clamped film, and the pushing length is 25 mm; ⑤ the electromagnetic push rod extends to push out the end of the film through the film pushing rod 83; ⑥ the second motor 7 wraps around again to wrap and cover the pushed out end of the film; ⑦ after wrapping is completed, the first motor 6 runs to push out the telescopic rod 64 and the movable block 65 again. While wrapping, the film will wrap the telescopic rod 64 and the object together; ⑧ cutting. Since the film is also wrapped around the circumference of the telescopic rod 64, when the first motor 6 pulls back the telescopic rod 64 and the movable block 65 again, the taut film will be close to the fixed plate 31 again, and the wrapped film will be cut, and the bundling is completed.

[0042] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A fully automatic film strapping machine, comprising a strapping machine body, characterized in that: A vertical plate extending vertically upward is provided in the body of the strapping machine, and the vertical plate is in a horizontal U-shape. A cover plate is provided on the surface of the strapping machine body, and a notch is provided on the cover plate. A fixed plate is provided on the upper part of the vertical plate, and an object sensor is provided on one side of the fixed plate, and a cutting knife is provided on the other side. A rotatable ring gear is provided on one side of the vertical plate, and the ring gear is in a C-shape. A film wheel is provided on one side of the ring gear, and a driving mechanism for driving the ring gear to operate is provided on the other side.

2. The fully automatic film strapping machine according to claim 1, characterized in that: The outer circumference of the ring gear is provided with an outer limiting wheel and a lower driving gear, the inner circumference of the ring gear is provided with an inner limiting wheel, the circumference of the ring gear is provided with meshing teeth and annular recesses, the circumference of the lower driving gear is provided with an annular limiting flange, the lower driving gear cooperates with the meshing teeth and the annular recess at the same time, and the outer limiting wheel and the inner limiting wheel always rotate to contact the inner and outer walls of the ring gear.

3. The fully automatic film strapping machine according to claim 2, characterized in that: The driving mechanism includes two pulleys on the other side of the vertical plate, the two pulleys correspond to the two lower driving gears respectively, and the two pulleys are connected by a synchronous belt. One of the pulleys is connected to the second motor for transmission. After the second motor is running, the ring gear rotates to make the film wheel wrap around and bundle.

4. The fully automatic film strapping machine according to claim 1, characterized in that: A bracket is also provided in the strapping machine body, and a first motor and a fixed block are provided on the bracket. A gear is provided at the output end of the first motor, and a rack matched with the gear is provided on the fixed block. The rack can move along the fixed block, and an L-shaped connecting corner is provided at the end of the rack. A horizontal telescopic rod is provided on the connecting corner. The telescopic rod passes through the fixed plate and the vertical plate and extends toward the ring gear. A movable block is provided at the end of the telescopic rod. The first motor drives the telescopic rod and the movable block to move horizontally. When the movable block moves toward the vertical plate, the film is pressed onto the cutter.

5. The fully automatic film strapping machine according to claim 4, characterized in that: The strapping machine body is also provided with an electromagnet, in which a retractable electromagnetic push rod is provided, and a spring is provided around the electromagnetic push rod. The electromagnetic push rod passes through a fixed plate and a vertical plate and is provided with a film pushing rod for pushing a film port.

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