Plastic packaging bag cutting machine

Abstract

A plastic packaging bag cutting machine comprises a fan cover and a static electricity generating device. The fan cover is wrapped outside the static electricity generating device, the static electricity generating device is used for generating static electricity, impurities are adsorbed through the static electricity, and then the impurities are discharged through the fan cover; the static electricity generating device generates static electricity through friction and adsorbs debris such as chippings and dust generated in the plastic packaging bag cutting process, the fan cover wraps the static electricity generating device to form an airflow channel, and the adsorbed debris is discharged through negative pressure or fan power.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of plastic packaging bag production and processing, and particularly relates to a plastic packaging bag cutting machine. BACKGROUND

[0002] A plastic packaging bag is a flexible container made of plastic as the main raw material, which is widely used for commodity packaging, transportation and storage. In general, the plastic packaging bag is formed by heating and melting plastic particles into a cylindrical film, and then cutting and heat-sealing the film into a bag by using a cutting machine.

[0003] Because plastic particles often remain on the surface of the plastic packaging bag, since both thermosetting plastic and thermoplastic are poor conductors of heat, a large amount of heat will be generated between the cutting tool and the product during mechanical processing. These heat cannot be quickly dissipated, and the plastic particles remaining on the surface of the plastic bag will exacerbate the above-mentioned heat accumulation phenomenon. These contaminants will usually cause the cutting tool to generate heat due to friction, resulting in the annealing softening of the cutting tool and accelerating the wear of the cutting tool. SUMMARY

[0004] In view of the above, in order to overcome the defects of the prior art, the present application provides a plastic packaging bag cutting machine, which at least partially solves the above-mentioned problems.

[0005] The technical scheme adopted by the present application is as follows: the present application provides a plastic packaging bag cutting machine comprising a wind shield and an electrostatic generating device, the wind shield is wrapped outside the electrostatic generating device, the electrostatic generating device is used to generate static electricity and adsorb impurities through static electricity, and then the impurities are discharged through the wind shield.

[0006] Further, it further comprises a table plate, a side edge mounting plate and a roller.

[0007] Among them, the lower part of the table plate is provided with two groups of side edge mounting plates, the two groups of side edge mounting plates are mirror image arranged, and a plurality of rollers are rotatably connected between the two groups of side edge mounting plates.

[0008] Further, the table plate comprises a notch and a conveying belt.

[0009] Among them, a plurality of notches are arranged on the table plate, the notches penetrate the table plate through cutting process, and a group of conveying belts are arranged between each group of notches, and each group of conveying belts are connected with the rollers.

[0010] Further, it further comprises a mounting frame, a moving shaft, a first spring and a cutting knife.

[0011] The mounting frame is arranged on the upper portion of the table board, a plurality of groups of action shafts are movably connected to the mounting frame, the lower portion of the plurality of groups of action shafts is provided with cutters, a plurality of groups of first springs are arranged between the cutters and the mounting frame, the number of groups of the first springs is same as the number of groups of the action shafts, and the outer portion of each group of the action shafts is fixedly connected with a group of the first springs.

[0012] Further, the air duct and the air suction fan are further included.

[0013] The air duct is fixedly connected to the middle portion of the air cover, and the air suction fan is fixedly connected to the tail portion of the air duct.

[0014] Further, the electrostatic generating device further includes a driving shaft, a fixing module, a second spring, a hand operating frame and a mounting module.

[0015] The middle portion of the driving shaft is provided with a group of fixing modules, the driving shaft is movably connected with the fixing modules, the front portion of the driving shaft is provided with a group of mounting modules, a group of second springs are arranged between the mounting modules and the fixing modules, the second springs are fixedly connected to the outer portion of the driving shaft, and the hand operating frame is movably connected to the middle portion of the mounting module.

[0016] Further, the electrostatic generating device further includes a hand operating rod, a parking block and a parking slot.

[0017] The hand operating rod is fixedly connected to the tail portion of the hand operating frame, the lower portion of the hand operating rod is provided with a group of parking blocks, and the upper portion of the parking blocks is provided with two groups of parking slots.

[0018] Further, the electrostatic generating device further includes mounting column feet, connecting rods, vertical frames, friction blocks, friction rollers and rotating shaft bodies.

[0019] The upper portion and the lower portion of the mounting module are each provided with a group of mounting column feet, the outer portion of each group of the mounting column feet is movably connected with a group of connecting rods, the front portion of the connecting rods is provided with a group of vertical frames, the upper portion and the lower portion of the vertical frames are each provided with a group of friction blocks, the tail portion of each group of the friction blocks is movably connected with a group of connecting rods, the outer portion of the friction blocks is provided with a group of friction rollers, and the rear portion of the friction rollers is fixedly connected with a group of rotating shaft bodies.

[0020] Further, the electrostatic generating device further includes a stabilizing block, the stabilizing block is fixedly connected to the middle portion of the driving shaft, and the stabilizing block is located in the middle portion of the vertical frame.

[0021] The beneficial effects achieved by the above structure are as follows: (1) The electrostatic generation device generates static electricity by friction, adsorbs the debris, dust and other sundries generated in the cutting process of the plastic packaging bag, and the air cover is wrapped outside the electrostatic generation device to form an air flow channel. The adsorbed sundries are discharged by using negative pressure or fan power; (2) Firstly, the electrostatic adsorption has a capture efficiency far exceeding that of the traditional filter screen for micron-level particles (such as plastic dust), which significantly reduces environmental pollution. Secondly, the air cover adopts a closed design, which can effectively reduce dust diffusion and improve the air quality of the workplace. Thirdly, the electrostatic adsorption is more energy-saving than the high-power dust collection equipment, and the directional air flow design further reduces energy consumption. (3) When the electrostatic function is turned off by the hand-operated lever, the friction block is separated from the friction roller, unnecessary friction energy consumption is terminated, the operating cost is reduced, and the device relies on physical friction to generate electricity instead of external power supply, which reduces the use of consumables (such as the need to replace the electrode of the traditional electrostatic generator), and conforms to the green manufacturing concept. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A perspective view of a plastic packaging bag cutting machine is provided for the embodiments of the present application; Figure 2 A left view of a plastic packaging bag cutting machine is provided for the embodiments of the present application; Figure 3 A bottom view of a plastic packaging bag cutting machine is provided for the embodiments of the present application; Figure 4 A front view of a plastic packaging bag cutting machine is provided for the embodiments of the present application; Figure 5 A perspective view of an electrostatic generation device is provided for the embodiments of the present application; Figure 6 A perspective view of part of the structure of an electrostatic generation device is provided for the embodiments of the present application.

[0023] Among them, 1, the table board, 2, the side edge mounting plate, 3, the roller, 4, the conveying belt, 5, the mounting frame; 6, the moving shaft, 7, the first spring, 8, the cutter, 9, the air cover, 10, the air duct; 11, the air blower, 12, the electrostatic generation device, 13, the notch; 1201, the driving shaft, 1202, the fixed module, 1203, the second spring, 1204, the hand-operated frame, 1205, the hand-operated lever; 1206, the parking block, 1207, the parking notch, 1208, the mounting column foot, 1209, the connecting rod, 1210, the vertical frame; 1211, the friction block, 1212, the friction roller, 1213, the rotating shaft body, 1214, the mounting module, 1215, the stabilizing block.

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] like Figures 1 to 6 As shown, the present invention proposes a plastic packaging bag cutting machine including a fan hood 9 and an electrostatic generator 12. The fan hood 9 is wrapped around the outside of the electrostatic generator 12. The electrostatic generator 12 is used to generate static electricity and attract impurities through static electricity, and then discharge the impurities through the fan hood 9.

[0028] In this embodiment, the electrostatic generator 12 generates static electricity through friction, adsorbing debris, dust and other impurities generated during the cutting of plastic packaging bags. The fan shroud 9 is wrapped around the electrostatic generator 12 to form an airflow channel, and the adsorbed impurities are discharged by using negative pressure or fan power.

[0029] Firstly, electrostatic adsorption is far more efficient at capturing micron-sized particles (such as plastic dust) than traditional filters, significantly reducing environmental pollution. Secondly, the hood 9 adopts a closed design, which can effectively reduce dust diffusion and improve workplace air quality. Thirdly, electrostatic adsorption is more energy-efficient than high-power vacuum cleaners, and the directional airflow design further reduces energy consumption.

[0030] Furthermore, it also includes a platform 1, a side mounting plate 2, and a roller 3; The platform 1 has two sets of side mounting plates 2 at its lower part. The two sets of side mounting plates 2 are mirror images of each other, and multiple sets of rollers 3 are rotatably connected between the two sets of side mounting plates 2.

[0031] Furthermore, the platform 1 includes a slot 13 and a conveyor belt 4; Wherein, the plurality of notches 13 are provided on the table plate 1, the plurality of notches 13 are through the table plate 1 by cutting process, a group of conveying belts 4 are provided between each group of notches 13, and each group of conveying belts 4 is connected with the roller 3.

[0032] In the embodiment, the lower part of the table plate 1 is provided with two groups of side edge mounting plates 2, the two groups of side edge mounting plates 2 are mirror image arranged, and a plurality of rollers 3 are rotatably connected between the two groups of side edge mounting plates 2. At this time, the plurality of rollers 3 are connected with the external motor, and when the external motor is started, the plurality of rollers 3 are driven to rotate.

[0033] The plurality of notches 13 are provided on the table plate 1, the plurality of notches 13 are through the table plate 1 by cutting process, a group of conveying belts 4 are provided between each group of notches 13, and each group of conveying belts 4 is connected with the roller 3. At this time, when the plurality of rollers 3 are driven to rotate by the external motor, the plurality of rollers 3 drive the conveying belts 4 to rotate in the notches 13. At this time, the plastic packaging bag is placed on the table plate 1, and the conveying of the plastic packaging bag can be realized.

[0034] Further, the mounting frame 5, the moving shaft 6, the first spring 7 and the cutter 8 are further included. The mounting frame 5 is arranged on the upper part of the table plate 1, a plurality of moving shafts 6 are movably connected to the mounting frame 5, the lower part of each group of moving shafts 6 is provided with a cutter 8, a plurality of first springs 7 are arranged between the cutter 8 and the mounting frame 5, the number of the first springs 7 is the same as the number of the moving shafts 6, and the outer part of each group of moving shafts 6 is fixedly connected with a group of first springs 7.

[0035] In the embodiment, the mounting frame 5 is fixed on the table plate 1 as a support base of the overall cutting mechanism, a plurality of moving shafts 6 are vertically arranged on the mounting frame and can slide up and down, mechanical power is transmitted to the cutter, the cutter 8 is fixed at the bottom of the moving shaft and directly performs the cutting action, and the first spring 7 is arranged between each group of moving shafts 6 and the mounting frame 5.

[0036] The first spring 7 is in a natural extension state, the cutter 8 is located at a high position and maintains a safe distance from the plastic packaging bag to be cut, the driving device (such as a cylinder or a motor) pushes a plurality of moving shafts 6 to be synchronously pressed down, the cutter contacts the surface of the plastic packaging bag, after the cutter 8 contacts the material, with the increase of pressure, the first spring 7 is compressed, the cutting pressure is evenly distributed through elastic deformation, and local overload is avoided.

[0037] The cutter 8 penetrates the material under continuous pressure, the first spring 7 is compressed to a limit position, the cutting depth is ensured to be consistent, after the driving device is withdrawn, the first spring 7 releases the elastic potential energy, pushes the moving shaft 6 and the cutter 8 to be quickly reset to the initial high position, and is ready for the next cutting.

[0038] Furthermore, it also includes an exhaust duct 10 and a suction fan 11; The air duct 10 is fixed to the middle of the hood 9, and the suction fan 11 is fixed to the tail of the air duct 10.

[0039] In this embodiment, after the suction fan 11 is started, it begins to draw air from inside the exhaust duct 10, while the plastic dust is collected by the hood 9 and finally transported away through the exhaust duct 10.

[0040] Furthermore, the electrostatic generator 12 includes a drive shaft 1201, a fixing module 1202, a second spring 1203, a hand-operated frame 1203, and an installation module 1214; The drive shaft 1201 has a set of fixing modules 1202 in the middle, and the drive shaft 1201 is movably connected to the fixing modules 1202. The drive shaft 1201 has a set of mounting modules 1214 at the front, and a set of second springs 1203 is provided between the mounting modules 1214 and the fixing modules 1202. The second springs 1203 are fixed to the outside of the drive shaft 1201, and the manual frame 1203 is movably connected to the middle of the mounting modules 1214.

[0041] Furthermore, the electrostatic generator 12 also includes a hand lever 1205, a parking block 1206, and a parking slot 1207; The hand lever 1205 is fixed to the tail of the hand operating frame 1203. The lower part of the hand lever 1205 is provided with a set of parking blocks 1206, and the upper part of the parking blocks 1206 is provided with two sets of parking slots 1207.

[0042] Furthermore, the electrostatic generating device 12 also includes a mounting column 1208, a connecting rod 1209, a vertical frame 1210, a friction block 1211, a friction roller 1212, and a rotating shaft 1213; The mounting module 1214 has a set of mounting feet 1208 at its upper and lower parts. Each set of mounting feet 1208 is movably connected to a set of connecting rods 1209. The front of the connecting rods 1209 is provided with a set of vertical frames 1210. The upper and lower parts of the vertical frames 1210 are each provided with a set of friction blocks 1211. The tail of each set of friction blocks 1211 is movably connected to a set of connecting rods 1209. The outside of the friction blocks 1211 is provided with a set of friction rollers 1212. The rear of the friction rollers 1212 is fixedly connected to a set of rotating shafts 1213.

[0043] Furthermore, the electrostatic generating device 12 also includes a stabilizing block 1215, which is fixed to the middle of the drive shaft 1201 and located in the middle of the vertical frame 1210.

[0044] In this embodiment, a set of fixed modules 1202 is provided in the middle of the drive shaft 1201, and the drive shaft 1201 is movably connected to the fixed modules 1202, so that the drive shaft 1201 can move back and forth in the fixed modules 1202. A set of mounting modules 1214 is provided at the front of the drive shaft 1201. When the drive shaft 1201 moves back and forth in the fixed modules 1202, it will drive the mounting modules 1214 to move back and forth.

[0045] A second spring 1203 is provided between the mounting module 1214 and the fixing module 1202, and the second spring 1203 is fixed to the outside of the drive shaft 1201. When the drive shaft 1201 drives the mounting module 1214 to move back and forth, it will inevitably squeeze the second spring 1203, causing the second spring 1203 to accumulate elastic force.

[0046] The mounting module 1214 has a set of mounting feet 1208 at its upper and lower parts. Each set of mounting feet 1208 is movably connected to a set of connecting rods 1209. When the drive shaft 1201 drives the mounting module 1214 to move back and forth, the mounting module 1214 will inevitably drive the mounting feet 1208 to move back and forth, and the mounting feet 1208 will drive the connecting rods 1209 to move back and forth.

[0047] The front of the connecting rod 1209 is provided with a set of vertical frames 1210. The upper and lower parts of the vertical frames 1210 are each provided with a set of friction blocks 1211. The tail of each set of friction blocks 1211 is movably connected to a set of connecting rods 1209. When the connecting rod 1209 moves forward, the friction blocks 1211 are restricted by the vertical frames 1210 and can only move upward.

[0048] When the friction block 1211 moves upward, because a set of friction rollers 1212 are provided on the outside of the friction block 1211, the friction block 1211 will inevitably come into contact with the friction rollers 1212. A set of rotating shafts 1213 are fixed to the rear of the friction rollers 1212. The rotating shafts 1213 rotate under the action of an external power source and drive the friction rollers 1212 at their front to rotate.

[0049] At this time, the relatively stationary friction block 1211 will inevitably rub against the rotating friction roller 1212, and the friction will inevitably generate static electricity. This static electricity will be gradually transferred to the rotating shaft 1213 through the friction roller 1212. The upper part of the rotating shaft 1213 is the fan shroud 9, and the lower part of the rotating shaft 1213 is the plastic packaging bag. At this time, the particles on the plastic packaging bag are attracted to the rotating shaft 1213 by static electricity. As the rotating shaft 1213 rotates, they are eventually transported out through the fan shroud 9.

[0050] The manual control frame 1203 is movably connected to the middle of the mounting module 1214. The manual control lever 1205 is fixed to the tail of the manual control frame 1203. The lower part of the manual control lever 1205 is provided with a set of parking blocks 1206, and the upper part of the parking blocks 1206 is provided with two sets of parking slots 1207. When the manual control lever 1205 is held and placed into the outer parking slot 1207, the manual control lever 1205 will drive the mounting module 1214 to move backward. The mounting module 1214 will then drive other parts to move backward. At this time, the friction block 1211 will move downward in the vertical frame 1210, moving the friction block 1211 away from the friction roller 1212. At this time, static electricity will no longer be generated.

[0051] When the joystick 1205 is placed into the inner parking slot 1207, the joystick 1205 will drive the mounting module 1214 to move forward. The mounting module 1214 will then drive other parts to move forward. At this time, the friction block 1211 will move upward in the vertical frame 1210, bringing the friction block 1211 closer to the friction roller 1212, at which point static electricity will be generated.

[0052] Alternatively, the friction block 1211 and friction roller 1212 are made of ceramic or composite coating materials to reduce wear and improve the stability of static electricity generation. An electromagnetic drive can be added to replace the hand lever 1205, and the static electricity function can be automatically started and stopped by the sensor to detect the cutting status.

[0053] In summary, when the electrostatic function is turned off by the lever 1205, the friction block 1211 disengages from the friction roller 1212, stopping unnecessary friction energy consumption, reducing operating costs, and relying on physical friction to generate electricity rather than external power supply, reducing the use of consumables (such as the need to replace electrodes in traditional electrostatic generators), which is in line with the concept of green manufacturing.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0056] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A plastic packaging bag cutting machine, characterized in that: It includes a fan hood (9) and an electrostatic generator (12). The fan hood (9) is wrapped around the outside of the electrostatic generator (12). The electrostatic generator (12) is used to generate static electricity and attract impurities through static electricity, and then discharge the impurities through the fan hood (9). The electrostatic generator (12) includes a friction block (1211), a friction roller (1212), and a rotating shaft (1213). A set of friction rollers (1212) is provided on the outside of the friction block (1211), and a set of rotating shafts (1213) is fixed to the rear of the friction rollers (1212).

2. The plastic packaging bag cutting machine according to claim 1, characterized in that: It also includes a platform (1), a side mounting plate (2), and a roller (3); The platform (1) has two sets of side mounting plates (2) at its lower part. The two sets of side mounting plates (2) are mirror images of each other. Multiple sets of rollers (3) are rotatably connected between the two sets of side mounting plates (2).

3. The plastic packaging bag cutting machine according to claim 2, characterized in that: The platform (1) includes a slot (13) and a conveyor belt (4); The platform (1) is provided with multiple sets of slots (13), which are cut through the platform (1). Each set of slots (13) is connected to a conveyor belt (4), and each set of conveyor belts (4) is connected to a roller (3).

4. The plastic packaging bag cutting machine according to claim 3, characterized in that: It also includes a mounting bracket (5), a moving shaft (6), a first spring (7), and a cutter (8); The mounting bracket (5) is located on the upper part of the platform (1). Multiple sets of moving shafts (6) are movably connected to the mounting bracket (5). A cutter (8) is provided at the lower part of the multiple sets of moving shafts (6). Multiple sets of first springs (7) are provided between the cutter (8) and the mounting bracket (5). The number of sets of first springs (7) is the same as the number of sets of moving shafts (6). Each set of moving shafts (6) is fixedly connected to a set of first springs (7) on its exterior.

5. The plastic packaging bag cutting machine according to claim 4, characterized in that: It also includes an exhaust duct (10) and a suction fan (11); The air duct (10) is fixed to the middle part of the hood (9), and the suction fan (11) is fixed to the tail of the air duct (10).

6. The plastic packaging bag cutting machine according to claim 5, characterized in that: The electrostatic generator (12) includes a drive shaft (1201), a fixing module (1202), a second spring (1203), a hand-operated frame (1203), and an installation module (1214). The drive shaft (1201) has a set of fixed modules (1202) in the middle, and the drive shaft (1201) and the fixed modules (1202) are movably connected. The drive shaft (1201) has a set of mounting modules (1214) at the front, and a set of second springs (1203) is provided between the mounting modules (1214) and the fixed modules (1202). The second springs (1203) are fixed to the outside of the drive shaft (1201), and the manual frame (1203) is movably connected to the middle of the mounting modules (1214).

7. The plastic packaging bag cutting machine according to claim 6, characterized in that: The electrostatic generator (12) also includes a hand lever (1205), a parking block (1206), and a parking slot (1207). The hand lever (1205) is fixed to the tail of the hand operating frame (1203). The lower part of the hand lever (1205) is provided with a set of parking blocks (1206), and the upper part of the parking blocks (1206) is provided with two sets of parking slots (1207).

8. The plastic packaging bag cutting machine according to claim 7, characterized in that: The electrostatic generator (12) also includes mounting base (1208), connecting rod (1209) and vertical frame (1210). The mounting module (1214) is provided with a set of mounting feet (1208) at its upper and lower parts. Each set of mounting feet (1208) is movably connected to a set of connecting rods (1209). The front of the connecting rods (1209) is provided with a set of vertical frames (1210). The upper and lower parts of the vertical frames (1210) are each provided with a set of friction blocks (1211). The tail of each set of friction blocks (1211) is movably connected to a set of connecting rods (1209).

9. The plastic packaging bag cutting machine according to claim 1, characterized in that: The electrostatic generator (12) also includes a stabilizing block (1215), which is fixed to the middle of the drive shaft (1201) and is located in the middle of the vertical frame (1210).

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