Bag edge fly-cutter cutting device for ton bag shaping and cutting method of bag edge fly-cutter cutting device

Abstract

The invention belongs to the technical field of packaging bag processing, and particularly relates to a bag edge fly-cutter cutting device for ton bag shaping and a cutting method of the bag edge fly-cutter cutting device. The bag edge fly-cutter cutting device comprises a fly-cutter cutting assembly, the fly-cutter cutting assembly comprises a workbench, a cutter is arranged on the upper portion of the workbench in a sliding mode, and a feeding groove is formed in the middle of the workbench; by means of transmission of the transmission belt, fibers falling into the feeding groove can be conveyed away, so that the fibers in the feeding groove can be cleaned out in time, a large amount of fibers are prevented from being accumulated in the feeding groove, obstruction of fiber accumulation to motion of the cutting knife is reduced, it is guaranteed that the cutting knife cuts according to a preset path, the cutting precision is improved, and the cutting efficiency is improved. And secondly, through cooperation of a blocking plate and a pushing rod, the situation that fibers are stacked at the joint of the transmission belt and the cavity in the workbench can be avoided, so that the overall cleanliness of the interior of the feeding groove can be improved, and the cleaning effect of the transmission belt is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging bag processing, in particular to a bag edge flying knife cutting device for shaping ton bags and a cutting method thereof. Background Art

[0002] The flying knife cutting device for bag edge shaping is a special equipment used in the production process of ton bags to cut the bag edges with a flying knife. The device uses the rapid movement and precise control of the flying knife to achieve precise cutting of the ton bag base material, ensuring that the bag edges are neat and burr-free, thus meeting the requirements of ton bag shaping and subsequent processing.

[0003] In the prior art, the bag edge flying knife cutting device for ton bag shaping drives the flying knife to move rapidly along a predetermined cutting trajectory through a driving mechanism. The flying knife accurately cuts the ton bag base material covering the cutting groove to achieve neat cutting of the bag edge. At the same time, the limiting device is used to ensure the stability and accuracy of the flying knife during the cutting process.

[0004] There are still some problems in the actual application of the above scheme. Although the existing device can complete the cutting of the base material of the ton bag, since the material of the ton bag is mostly high-strength chemical fiber fabric, these fibers are prone to separation and breakage when subjected to external force. During the flying knife cutting process, the tool and the ton bag material rub and shear at high speed, causing the fibers to be cut. Due to the flexibility and ductility of the chemical fiber material, the cut fibers will enter the tool groove due to factors such as the drag of the tool and airflow. When the cutting work is carried out for a long time, the accumulated fibers will occupy a certain space, causing the movement of the tool in the tool groove to be disturbed, and the tool cannot accurately cut according to the preset path, resulting in uneven cutting edges and deviations, affecting the cutting size accuracy of the ton bag. In severe cases, the specifications of the ton bag will not meet the requirements and become a defective product.

[0005] To this end, the present invention provides a bag edge flying knife cutting device for shaping ton bags and a cutting method thereof. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the bag edge flying knife cutting device for shaping a ton bag described in the present invention comprises a flying knife cutting assembly, the flying knife cutting assembly comprises a workbench, a cutting knife is slidably arranged on the upper part of the workbench, a knife feeding groove is opened in the middle part of the workbench, and a reciprocating cleaning assembly is arranged inside the flying knife cutting assembly;

[0008] The reciprocating cleaning component comprises a transmission belt which is arranged in the inner cavity of the workbench, and the fibers cut and dropped inside the knife groove can be cleaned out of the knife groove through the transmission of the transmission belt.

[0009] Preferably, the reciprocating cleaning assembly includes a driving motor fixedly connected inside the workbench. The output shaft of the driving motor is fixedly connected with a first rotating shaft. The outer ring surface of the first rotating shaft is drivingly connected with a transmission belt. The transmission belt is internally rotatably connected with a second rotating shaft, and the second rotating shaft is rotatably connected to the side wall of the inner cavity of the workbench.

[0010] Preferably, the whole transmission belt is located below the feed groove, and the cutting knife will not touch the surface of the transmission belt during fly cutting.

[0011] Preferably, an arc-shaped tooth is fixedly connected to the outer ring surface of the end of the first rotating shaft far from the driving motor. The outer ring surface of the arc-shaped tooth is engaged with a first rack. One end of the first rack is fixedly connected with a first guide rod. A first spring is fixedly connected to the end of the first guide rod far from the first rack. A blocking plate is fixedly connected to the side wall of the inner cavity of the workbench, and a push rod is fixedly connected to the side wall of the first rack.

[0012] Preferably, the first guide rod slides in the inner cavity opened on the workbench, which can play a guiding role when the first rack moves. The other end of the first spring is fixed to the side wall of the inner cavity of the workbench, which can reset the first rack after it moves. The bottom of the push rod abuts against the top of the blocking plate.

[0013] Preferably, a second guide rod is slidably connected to the bottom of the workbench far from the driving motor. A collection box is fixedly connected to the bottom of the second guide rod. A torsion spring is fixedly connected to the top of the side wall of the collection box. A scraping plate is fixedly connected to the side of the torsion spring. A blocking block is fixedly connected to the top of the side wall of the collection box.

[0014] Preferably, a linkage pressing-down assembly for fixing the cutting edge is arranged on the side of the reciprocating cleaning assembly. The linkage pressing-down assembly includes a fixed bottom plate fixedly connected to the side wall of the inner cavity of the workbench. A blocking rod is fixedly connected to the side wall of the fixed bottom plate. A second rack is slidably connected to the side wall of the fixed bottom plate. A first fixing block is fixedly connected to the side wall of the second rack. A third guide rod is fixedly connected to the top of the first fixing block. A second spring is sleeved on the outer ring surface of the third guide rod, and the bottom of the second spring is fixedly connected to the top of the first fixing block.

[0015] Preferably, the top of the second spring is fixedly connected with a second fixing block. The third guide rod is slidably connected inside the second fixing block. A moving tooth is fixedly connected to the side of the second fixing block. A pressing-down rod is fixedly connected to the top side of the second rack. A displacement rod is fixedly connected to the side of the second rack. The side teeth of the second rack are engaged with a rotating gear, and the rotating gear is fixedly connected to the side wall of the second rotating shaft.

[0016] Preferably, the movable tooth and the second rack are on the same vertical plane and both slide on the side wall of the fixed base plate. The displacement rod and the blocking rod are on the same vertical plane, and the movable tooth is adapted to the teeth on the outer ring surface of the rotating gear.

[0017] A method for cutting the edge of a ton bag with a flying knife for ton bag shaping, specifically as follows:

[0018] Preparation before processing: Ensure that the base material of the ton bag has no wrinkles, damage, and has a uniform thickness, and check the flying knife cutting equipment. Secondly, adjust the distance between the flying knives and the cutting speed according to the width of the bag edge;

[0019] Cutting with the edge flying knife: Lay the base material of the ton bag flat on the conveyor belt, and the positioning component positions the edge to ensure uniform tension of the base material. At this time, start the cutting knife, and the cutting knife will move downward under the drive of its drive component. When the bottom of the cutting knife inserts into the edge of the ton bag and the bottom is inside the tool path groove, the cutting knife will perform the cutting work. At this time, the conveyor belt will drive synchronously and take away the fibers that fall on the conveyor belt;

[0020] Quality inspection and post-processing: Inspect the appearance and strength of the cut base material of the ton bag.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. For the device for cutting the edge of a ton bag with a flying knife for ton bag shaping according to the present invention, when the bottom of the cutting knife moves into the tool path groove, start the driving motor. At this time, the driving motor will drive the first rotating shaft fixed to its output shaft to rotate, and at the same time of rotating, it will drive the conveyor belt on its outer ring surface to drive. While the conveyor belt is driving, it will synchronously drive the second rotating shaft inside it to rotate. Since all components in the reciprocating cleaning component are not on the same horizontal plane as the tool path groove, when the cutting knife moves downward, its bottom will not contact the top of the conveyor belt. At this time, the fibers cut off by the cutting knife and falling into the tool path groove will fall on the top of the conveyor belt, and the fibers falling into the tool path groove can be conveyed away through the driving of the conveyor belt, so as to timely clean the fibers in the tool path groove, avoid a large accumulation of fibers in the tool path groove, thereby reducing the obstruction to the movement of the cutting knife caused by fiber accumulation, being beneficial to ensuring that the cutting knife cuts according to the preset path, improving the cutting accuracy, making the cutting edge of the ton bag neater and the size more in line with the standard.

[0023] 2. For the bag edge flying knife cutting device for ton bag shaping according to the present invention, when the first rotating shaft rotates, it will drive the arc-shaped teeth at one end of the principle driving motor to rotate synchronously, and while rotating, it will drive the first rack engaged with it to move. Since the first guide rod fixed at one end of the first rack slides in the inner cavity opened inside the workbench, at this time, the first rack will perform a linear motion driven by the arc-shaped teeth. At this time, the first spring fixed at one end of the first guide rod is in a gradually stretched state. At the same time, when the first rack performs a linear motion, it will synchronously drive the push rod fixed on its side to move synchronously. Since the top of the blocking plate is in contact with the bottom of the push rod, and the blocking plate is arranged at the junction of the conveyor belt and the inner cavity of the workbench, when the cutting knife cuts, the fibers falling at the junction of the conveyor belt and the inner cavity of the workbench will fall on the upper part of the blocking plate, and the fibers falling on the blocking plate will be scraped back to the top of the conveyor belt through the linear motion of the push rod. Through the cooperation of the blocking plate and the push rod, the situation of fiber accumulation at the junction of the conveyor belt and the inner cavity of the workbench can be avoided, thereby improving the overall cleanliness inside the tool feed groove and further improving the cleaning effect of the conveyor belt.

[0024] 3. For the bag edge flying knife cutting device for ton bag shaping according to the present invention, since the moving tooth and the second rack are connected by the second spring and the third guide rod, when the rotating gear rotates, the moving tooth will move downward along the third guide rod and continuously compress the second spring while moving. Since the second rack is blocked by the displacement rod and another blocking rod, at this time, the second rack remains stationary. At the same time, the pressing rod fixed on its side will also move synchronously when the second rack moves downward, and the rotating gear will engage with the moving tooth only when the bottom of the pressing rod contacts the ton bag base material. Through the pressing work of the pressing rod, the initial cutting position of the ton bag base material by the cutting knife can be fixed, thereby avoiding the loosening phenomenon during cutting, and further improving the cutting accuracy of the cutting knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 is the overall structural schematic diagram of a preferred embodiment shown in the present invention;

[0027] Figure 2 is the upward view three-dimensional structural schematic diagram of the flying knife cutting assembly shown in the present invention;

[0028] Figure 3 is the positional structural schematic diagram of the flying knife cutting assembly and the reciprocating cleaning assembly shown in the present invention;

[0029] Figure 4It is a schematic structural diagram of the positions of the first rotating shaft and the first rack shown in the present invention;

[0030] Figure 5 It is a schematic structural diagram of the positions of the collection box and the conveyor belt shown in the present invention;

[0031] Figure 6 It is a schematic structural diagram of the positional relationship between the scraping plate and the collection box shown in the present invention;

[0032] Figure 7 It is a schematic structural diagram of the positions of the flying knife cutting assembly and the linkage pressing-down assembly shown in the present invention;

[0033] Figure 8 It is a three-dimensional structural diagram of the linkage pressing-down assembly shown in the present invention;

[0034] In the figure: 1. Flying knife cutting assembly; 101. Workbench; 102. Cutting knife; 103. Knife path;

[0035] 2. Reciprocating cleaning assembly; 201. Driving motor; 202. First rotating shaft; 203. Conveyor belt; 204. Second rotating shaft; 205. Arc teeth; 206. First rack; 207. First guide rod; 208. First spring; 209. Collection box; 210. Torsion spring; 211. Scraping plate; 212. Second guide rod; 213. Blocking block; 214. Pushing rod; 215. Blocking plate;

[0036] 3. Linkage pressing-down assembly; 301. Rotating gear; 302. Fixed bottom plate; 303. Blocking rod; 304. Second rack; 305. First fixing block; 306. Third guide rod; 307. Second spring; 308. Second fixing block; 309. Moving tooth; 310. Pressing-down rod; 311. Displacement rod. Detailed implementation manners

[0037] In order to make the technical means, creative features, achieved purposes and effects realized by the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0038] Embodiment 1

[0039] As Figures 1 to 8 shown, one implementation manner of the present invention is:

[0040] A bag edge flying knife cutting device for ton bag shaping, comprising a flying knife cutting assembly 1, the flying knife cutting assembly 1 includes a workbench 101, a cutting knife 102 is slidably arranged on the upper part of the workbench 101, and a knife path 103 is opened in the middle of the workbench 101, and it is characterized in that: a reciprocating cleaning assembly 2 is arranged inside the flying knife cutting assembly 1;

[0041] The reciprocating cleaning assembly 2 includes a transmission belt 203 drivingly arranged in the inner cavity of the workbench 101. Through the driving of the transmission belt 203, the fibers cut and dropped inside the feed groove 103 can be cleaned out of the feed groove 103.

[0042] Specifically, although the existing device can complete the cutting work of the bulk bag base material, since the material of the bulk bag is mostly high-strength chemical fiber fabric, these fibers are prone to separation and breakage when subjected to external forces. During the flying knife cutting process, the tool and the bulk bag material rub and shear at high speed, causing the fibers to be cut. Due to the flexibility and ductility of the chemical fiber material, the cut fibers will enter the feed groove 103 due to factors such as the dragging of the tool and air flow. When the cutting work is carried out for a long time, the accumulated fibers will occupy a certain space, interfering with the movement of the tool in the feed groove 103. The tool cannot accurately cut according to the preset path, resulting in uneven cutting edges and deviations, affecting the cutting size accuracy of the bulk bag. Seriously, the specifications of the bulk bag will not meet the requirements and become defective products.

[0043] Therefore, the present invention solves this problem by setting a certain structure. When it is necessary to cut the bulk bag base material, first lay the bulk bag base material flat above the workbench 101, and move the edge to be cut of the bulk bag base material directly below the cutting knife 102 through the positioning assembly. At this time, the edge of the bulk bag base material will cover the upper part of the feed groove 103, and fix the bulk bag base material through the positioning assembly, and start the cutting knife 102 to move downward. When the bottom of the cutting knife 102 enters the feed groove 103, the cutting knife 102 will move horizontally and cut the bulk bag base material during the movement. However, since the material of the bulk bag is mostly high-strength chemical fiber fabric, these fibers are prone to separation and breakage when subjected to external forces. During the flying knife cutting process, the tool and the bulk bag material rub and shear at high speed, causing the fibers to be cut. Due to the flexibility and ductility of the chemical fiber material, the cut fibers will enter the feed groove 103 due to factors such as the dragging of the tool and air flow. When the cutting work is carried out for a long time, the accumulated fibers will occupy a certain space, interfering with the movement of the tool in the feed groove 103. The tool cannot accurately cut according to the preset path, resulting in uneven cutting edges and deviations, affecting the cutting size accuracy of the bulk bag. Seriously, the specifications of the bulk bag will not meet the requirements and become defective products. At this time, through the driving of the transmission belt 203, the fibers falling into the feed groove 103 can be conveyed away, so as to maintain the cleanliness inside the feed groove 103, and further improve the cutting size of the feed groove 103.

[0044] Such as Figure 3 and Figure 4As shown, the reciprocating cleaning assembly 2 in this embodiment includes a driving motor 201, the driving motor 201 is fixedly connected inside the workbench 101, the output shaft of the driving motor 201 is fixedly connected with a first rotating shaft 202, the outer ring surface of the first rotating shaft 202 is drivingly connected with a transmission belt 203, the transmission belt 203 is rotatably connected with a second rotating shaft 204 inside, and the second rotating shaft 204 is rotatably connected to the side wall of the inner cavity of the workbench 101.

[0045] Specifically, when the bottom of the cutting knife 102 moves into the feed groove 103, the driving motor 201 is started. At this time, the driving motor 201 will drive the first rotating shaft 202 fixed to its output shaft to rotate, and while rotating, it will drive the transmission belt 203 on its outer ring surface to transmit power. While the transmission belt 203 is transmitting power, it will synchronously drive the second rotating shaft 204 inside it to rotate. Since all components in the reciprocating cleaning assembly 2 are not on the same horizontal plane as the feed groove 103, when the cutting knife 102 moves downward, its bottom will not contact the top of the transmission belt 203. At this time, the fibers cut off by the cutting knife 102 and falling into the feed groove 103 will fall on the top of the transmission belt 203, and through the transmission of the transmission belt 203, the fibers falling into the feed groove 103 can be conveyed away, so as to timely clean the fibers in the feed groove 103, avoid a large accumulation of fibers in the feed groove 103, thereby reducing the obstruction to the movement of the cutting knife 102 caused by fiber accumulation, being beneficial to ensuring that the cutting knife 102 cuts along the preset path, improving the cutting accuracy, making the cutting edge of the ton bag neater and the size more in line with the standard.

[0046] As Figure 4 As shown, at one end of the first rotating shaft 202 away from the driving motor 201, an arc-shaped tooth 205 is fixedly connected to the outer ring surface, a first rack 206 is meshed with the outer ring surface of the arc-shaped tooth 205, one end of the first rack 206 is fixedly connected with a first guide rod 207, a first spring 208 is fixedly connected to the end of the first guide rod 207 away from the first rack 206, a blocking plate 215 is fixedly connected to the side wall of the inner cavity of the workbench 101, and a push rod 214 is fixedly connected to the side wall of the first rack 206.

[0047] Specifically, when the first rotating shaft 202 rotates, it drives the arc-shaped teeth 205 at the end far from the driving motor 201 to rotate synchronously. While rotating, it drives the first rack 206 engaged with it to move. Since the first guide rod 207 fixed at one end of the first rack 206 slides in the inner cavity opened inside the workbench 101, at this time, the first rack 206 will perform a linear movement driven by the arc-shaped teeth 205. At this time, the first spring 208 fixed at one end of the first guide rod 207 is in a gradually stretched state. At the same time, when the first rack 206 performs a linear movement, it will synchronously drive the push rod 214 fixed on its side to move synchronously. Since the top of the blocking plate 215 is in contact with the bottom of the push rod 214, and the blocking plate 215 is arranged at the junction of the conveyor belt 203 and the inner cavity of the workbench 101, when the cutting knife 102 cuts, the fibers that fall at the junction of the conveyor belt 203 and the inner cavity of the workbench 101 will fall on the upper part of the blocking plate 215, and the fibers falling on the blocking plate 215 will be scraped back to the top of the conveyor belt 203 through the linear movement of the push rod 214. Through the cooperation of the blocking plate 215 and the push rod 214, it is possible to avoid the accumulation of fibers at the junction of the conveyor belt 203 and the inner cavity of the workbench 101, thereby improving the overall cleanliness inside the tool feed groove 103 and further improving the cleaning effect of the conveyor belt 203.

[0048] As Figure 5 and Figure 6 shown, a second guide rod 212 is slidably connected to the bottom of the workbench 101 far from the driving motor 201 in this embodiment. A collection box 209 is fixedly connected to the bottom of the second guide rod 212. A torsion spring 210 is fixedly connected to the top of the side wall of the collection box 209. A scraping plate 211 is fixedly connected to the side of the torsion spring 210. A blocking block 213 is fixedly connected to the top of the side wall of the collection box 209.

[0049] Specifically, before the conveyor belt 203 is started, the staff will move the collection box 209 along the guide groove opened at the bottom of the workbench 101 to the end of the conveyor belt 203 far from the driving motor 201. When the collection box 209 moves, since the scraping plate 211 is connected to the collection box 209 through the torsion spring 210, the scraping plate 211 will move synchronously when the collection box 209 moves. When it moves below the conveyor belt 203, the scraping plate 211 is gradually rotated by the blocking of the conveyor belt 203. At this time, the setting of the torsion spring 210 can make the scraping plate 211 rotate when it touches the bottom of the conveyor belt 203, so that the top of the scraping plate 211 fits the bottom of the conveyor belt 203, thereby being able to scrape the fibers electrostatically adsorbed on the conveyor belt 203 into the collection box 209, and further improving the transmission efficiency of the conveyor belt 203 and avoiding the situation of fiber accumulation caused by electrostatic adsorption.

[0050] As Figure 7 and Figure 8 shown, on the side of the reciprocating cleaning assembly 2 described in this embodiment, there is a linkage pressing-down assembly 3 for fixing the cutting edge. The linkage pressing-down assembly 3 includes a fixed bottom plate 302, the fixed bottom plate 302 is fixedly connected to the inner cavity side wall of the workbench 101, a blocking rod 303 is fixedly connected to the side wall of the fixed bottom plate 302, a second rack 304 is slidably connected to the side wall of the fixed bottom plate 302, a first fixing block 305 is fixedly connected to the side wall of the second rack 304, a third guiding rod 306 is fixedly connected to the top of the first fixing block 305, a second spring 307 is sleeved on the outer ring surface of the third guiding rod 306, and the bottom of the second spring 307 is fixedly connected to the top of the first fixing block 305.

[0051] As Figure 7 and Figure 8 shown, the top of the second spring 307 described in this embodiment is fixedly connected to a second fixing block 308, the third guiding rod 306 is slidably connected inside the second fixing block 308, a moving tooth 309 is fixedly connected to the side of the second fixing block 308, a pressing-down rod 310 is fixedly connected to the top side of the second rack 304, a displacement rod 311 is fixedly connected to the side of the second rack 304, and the side tooth of the second rack 304 meshes with a rotating gear 301, and the rotating gear 301 is fixedly connected to the side wall of the second rotating shaft 204.

[0052] Specifically, when the second rotating shaft 204 rotates, it will synchronously drive the rotating gear 301 fixed to it to rotate synchronously. During the rotation, it will drive the second rack 304 engaged with it to move downward along the guiding groove on the fixed bottom plate 302, and synchronously drive the moving tooth 309 and the displacement rod 311 to move. When the displacement rod 311 fixed to the side of the second rack 304 abuts against another blocking rod 303, at this time, the moving tooth 309 will be driven by the second rack 304 to mesh with the outer ring teeth of the rotating gear 301.

[0053] At this time, the rotating gear 301 will continue to rotate. However, since the moving tooth 309 and the second rack 304 are connected by the second spring 307 and the third guide rod 306, when the rotating gear 301 rotates, the moving tooth 309 will move downward along the third guide rod 306 and continuously compress the second spring 307 while moving. Since the second rack 304 is blocked by the displacement rod 311 and another blocking rod 303, the second rack 304 remains stationary at this time. At the same time, the pressing rod 310 fixed to its side will also move synchronously when the second rack 304 moves downward, and the rotating gear 301 will engage with the moving tooth 309 only when the bottom of the pressing rod 310 contacts the ton bag base material. Through the pressing work of the pressing rod 310, the initial cutting position of the ton bag base material by the cutting knife 102 can be fixed, thereby avoiding loosening during cutting, and thus improving the cutting accuracy of the cutting knife 102.

[0054] Embodiment 2

[0055] As Figures 1 to 8 shown, compared with Embodiment 1, another embodiment of the present invention is: a method for cutting the edge of a ton bag by a flying knife for shaping, and the specific steps include:

[0056] Preparation before processing: Ensure that the ton bag base material has no wrinkles, damage, and uniform thickness, and check the flying knife cutting equipment. Secondly, adjust the flying knife spacing and cutting speed according to the edge width of the bag.

[0057] Edge flying knife cutting: Lay the ton bag base material flat on the conveyor belt, and the positioning component positions the edge to ensure uniform tension of the base material. At this time, start the cutting knife 102, and the cutting knife 102 will move downward driven by its driving component. When the bottom of the cutting knife 102 inserts into the edge of the ton bag and the bottom is inside the tool feed groove 103, the cutting knife 102 will perform the cutting work. At this time, the conveyor belt 203 will be driven synchronously and take away the fibers falling on the conveyor belt 203.

[0058] Quality inspection and post-treatment: Inspect the appearance and strength of the cut ton bag base material.

[0059] Working principle: When the bottom of the cutting knife 102 moves into the feed groove 103, the driving motor 201 is started. At this time, the driving motor 201 drives the first rotating shaft 202 fixed to its output shaft to rotate, and while rotating, it drives the transmission belt 203 on its outer ring surface to transmit power. While the transmission belt 203 is transmitting power, it simultaneously drives the second rotating shaft 204 inside it to rotate. Since all components in the reciprocating cleaning assembly 2 are not on the same horizontal plane as the feed groove 103, when the cutting knife 102 moves downward, its bottom will not contact the top of the transmission belt 203. At this time, the fibers cut off by the cutting knife 102 and falling into the feed groove 103 will fall on the top of the transmission belt 203, and through the transmission of the transmission belt 203, the fibers falling into the feed groove 103 can be conveyed away, so as to timely clean the fibers in the feed groove 103, avoid a large accumulation of fibers in the feed groove 103, thereby reducing the obstruction to the movement of the cutting knife 102 caused by fiber accumulation, facilitating ensuring that the cutting knife 102 cuts according to the preset path, improving the cutting accuracy, making the cutting edge of the ton bag neater and the size more in line with the standard.

[0060] When the first rotating shaft 202 rotates, it drives the arc-shaped teeth 205 at its end far from the driving motor 201 to rotate synchronously, and while rotating, it drives the first rack 206 meshing with it to move. Since the first guide rod 207 fixed to one end of the first rack 206 slides in the inner cavity opened inside the workbench 101, at this time, the first rack 206 will perform a linear movement driven by the arc-shaped teeth 205. At this time, the first spring 208 fixed to one end of the first guide rod 207 is in a gradually stretched state. At the same time, when the first rack 206 performs a linear movement, it will synchronously drive the push rod 214 fixed to its side to move synchronously. Since the top of the blocking plate 215 is in contact with the bottom of the push rod 214, and the blocking plate 215 is arranged at the junction of the transmission belt 203 and the inner cavity of the workbench 101, when the cutting knife 102 is cutting, the fibers falling at the junction of the transmission belt 203 and the inner cavity of the workbench 101 will fall on the upper part of the blocking plate 215, and through the linear movement of the push rod 214, the fibers falling on the blocking plate 215 are scraped back to the top of the transmission belt 203. Through the cooperation of the blocking plate 215 and the push rod 214, it is possible to avoid fiber accumulation at the junction of the transmission belt 203 and the inner cavity of the workbench 101, thereby improving the overall cleanliness inside the feed groove 103 and further improving the cleaning effect of the transmission belt 203.

[0061] Before the conveyor belt 203 starts, the staff will move the collection box 209 along the guide groove opened at the bottom of the workbench 101 to the end of the conveyor belt 203 away from the drive motor 201. When the collection box 209 moves, since the scraper 211 is connected to the collection box 209 through a torsion spring 210, the scraper 211 will move synchronously when the collection box 209 moves. When it moves below the conveyor belt 203, the scraper 211 is gradually rotated by the obstruction of the conveyor belt 203. At this time, the setting of the torsion spring 210 can make the scraper 211 rotate when it touches the bottom of the conveyor belt 203, so that the top of the scraper 211 fits the bottom of the conveyor belt 203, and then the fibers adsorbed on the conveyor belt 203 due to static electricity can be scraped into the collection box 209, thereby further improving the transmission efficiency of the conveyor belt 203 and avoiding the situation of fiber accumulation caused by static electricity adsorption.

[0062] When the second rotating shaft 204 rotates, it will synchronously drive the rotating gear 301 fixed to it to rotate synchronously. While rotating, it will drive the second rack 304 engaged with it to move downward along the guide groove on the fixed base plate 302, and synchronously drive the moving tooth 309 and the displacement rod 311 to move. When the displacement rod 311 fixed to the side of the second rack 304 abuts against another blocking rod 303, at this time, the moving tooth 309 will be engaged with the outer ring surface teeth of the rotating gear 301 under the drive of the second rack 304.

[0063] At this time, the rotating gear 301 will continue to rotate. However, since the moving tooth 309 and the second rack 304 are connected through the second spring 307 and the third guide rod 306, when the rotating gear 301 rotates, the moving tooth 309 will move downward along the third guide rod 306 and continuously compress the second spring 307 while moving. Since the second rack 304 is blocked by the displacement rod 311 and another blocking rod 303, the second rack 304 remains stationary at this time. At the same time, the pressing rod 310 fixed to its side will also move synchronously when the second rack 304 moves downward, and the rotating gear 301 will engage with the moving tooth 309 only when the bottom of the pressing rod 310 contacts the ton belt substrate. Through the pressing work of the pressing rod 310, the initial cutting position of the ton bag substrate by the cutting knife 102 can be fixed, thereby avoiding loosening during cutting and improving the cutting accuracy of the cutting knife 102.

[0064] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A bag edge flying knife cutting device for shaping ton bags, comprising a flying knife cutting component (1). The flying knife cutting component (1) includes a workbench (101). A cutting knife (102) is slidably arranged on the upper part of the workbench (101). A tool feed groove (103) is opened in the middle of the workbench (101). It is characterized in that: A reciprocating cleaning component (2) is arranged inside the flying knife cutting component (1); The reciprocating cleaning component (2) includes a transmission belt (203) transmission - arranged in the inner cavity of the workbench (101). Through the transmission of the transmission belt (203), the fibers cut and dropped inside the feed groove (103) can be cleaned out of the feed groove (103).

2. The bag edge flying knife cutting device for shaping ton bags according to claim 1, characterized in that: The reciprocating cleaning component (2) includes a driving motor (201). The driving motor (201) is fixedly connected inside the workbench (101). The output shaft of the driving motor (201) is fixedly connected with a first rotating shaft (202). The outer ring surface of the first rotating shaft (202) is drivingly connected with a transmission belt (203). A second rotating shaft (204) is rotatably connected inside the transmission belt (203). The second rotating shaft (204) is rotatably connected to the side wall of the inner cavity of the workbench (101).

3. The bag edge flying knife cutting device for ton bag shaping according to claim 2, characterized in that: The whole of the transmission belt (203) is located below the feed groove (103), and the cutting knife (102) will not touch the surface of the transmission belt (203) during flying knife cutting.

4. The bag edge flying knife cutting device for ton bag shaping according to claim 2, characterized in that: An arc - shaped tooth (205) is fixedly connected to the outer ring surface of the end of the first rotating shaft (202) far from the driving motor (201). A first rack (206) is meshed with the outer ring surface of the arc - shaped tooth (205). One end of the first rack (206) is fixedly connected with a first guide rod (207). A first spring (208) is fixedly connected to the end of the first guide rod (207) far from the first rack (206). A blocking plate (215) is fixedly connected to the side wall of the inner cavity of the workbench (101). A push rod (214) is fixedly connected to the side wall of the first rack (206).

5. A bag edge flying knife cutting device for shaping a ton bag according to claim 4, characterized in that: The first guide rod (207) slides in the inner cavity opened in the workbench (101) and can play a guiding role when the first rack (206) moves. The other end of the first spring (208) is fixed to the side wall of the inner cavity of the workbench (101) and can reset the first rack (206) after it moves. The bottom of the push rod (214) abuts against the top of the blocking plate (215).

6. The edge flying knife cutting device for shaping the ton bag according to claim 4, characterized in that: A second guide rod (212) is slidably connected to the bottom of the workbench (101) far from the driving motor (201). A collecting box (209) is fixedly connected to the bottom of the second guide rod (212). A torsion spring (210) is fixedly connected to the top of the side wall of the collecting box (209). A scraping plate (211) is fixedly connected to the side of the torsion spring (210). A blocking block (213) is fixedly connected to the top of the side wall of the collecting box (209).

7. A bag edge flying knife cutting device for shaping a ton bag according to claim 1, characterized in that: On the side of the reciprocating cleaning assembly (2), there is a linkage pressing-down assembly (3) for fixing the cutting edge. The linkage pressing-down assembly (3) includes a fixed bottom plate (302), which is fixedly connected to the inner cavity side wall of the workbench (101). A blocking rod (303) is fixedly connected to the side wall of the fixed bottom plate (302). A second rack (304) is slidably connected to the side wall of the fixed bottom plate (302). A first fixing block (305) is fixedly connected to the side wall of the second rack (304). A third guiding rod (306) is fixedly connected to the top of the first fixing block (305). A second spring (307) is sleeved on the outer ring surface of the third guiding rod (306), and the bottom of the second spring (307) is fixedly connected to the top of the first fixing block (305).

8. The bag edge flying knife cutting device for shaping a ton bag according to claim 7, characterized in that: The top of the second spring (307) is fixedly connected to a second fixing block (308). The third guiding rod (306) is slidably connected inside the second fixing block (308). A moving tooth (309) is fixedly connected to the side of the second fixing block (308). A pressing-down rod (310) is fixedly connected to the top side of the second rack (304). A displacement rod (311) is fixedly connected to the side of the second rack (304). The side teeth of the second rack (304) are meshed with a rotating gear (301), and the rotating gear (301) is fixedly connected to the side wall of the second rotating shaft (204).

9. A bag edge flying knife cutting device for shaping a ton bag according to claim 8, characterized in that: The moving tooth (309) and the second rack (304) are on the same vertical plane and both slide on the side wall of the fixed bottom plate (302). The displacement rod (311) and the blocking rod (303) are on the same vertical plane. The moving tooth (309) is adapted to the outer ring teeth of the rotating gear (301).

10. A method for cutting the bag edge of a bulk bag with a flying knife for shaping, which is applied to a device for cutting the bag edge of a bulk bag with a flying knife for shaping according to any one of claims 1-9, characterized in that: Specifically: Preparation before processing: Ensure that the base material of the ton bag is free of wrinkles, damage, and has uniform thickness, and check the flying knife cutting equipment. Secondly, adjust the distance between the flying knives and the cutting speed according to the width of the bag edge. Cutting the bag edge with the flying knife: Lay the base material of the ton bag flat on the conveyor belt, and the positioning assembly positions the edge to ensure uniform tension of the base material. At this time, start the cutting knife (102), and the cutting knife (102) will move downward driven by its driving assembly. When the bottom of the cutting knife (102) inserts into the edge of the ton bag and the bottom is inside the tool feed groove (103), the cutting knife (102) will perform the cutting work. At this time, the conveyor belt (203) will be driven synchronously and take away the fibers that fall on the conveyor belt (203). Quality inspection and post-treatment: Inspect the appearance and strength of the cut base material of the ton bag.

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