Feeding device of packaging machine

Abstract

The invention discloses a packaging machine feeding device, and belongs to the technical field of packaging machine feeding, the packaging machine feeding device comprises a feeding box, a first cross feeding assembly is installed in the feeding box, second cross feeding assemblies are fixedly connected to the two sides of the feeding box respectively, one side of the middle of the feeding box is fixedly connected with a conveying frame, and the other side of the middle of the feeding box is fixedly connected with a second cross feeding assembly. An adjustable belt assembly is arranged on the inner side of the top end of the conveying frame, and a tightening assembly is arranged in the middle of the adjustable belt assembly. Through the integrated process design, automation, precision and high efficiency of the feeding device of the packaging machine are achieved, through cooperative work of the first cross feeding assembly, the second cross feeding assembly, the adjustable belt assembly, the tightening assembly and other structures, the feeding stability and accuracy are greatly improved, and the feeding efficiency is greatly improved through the cooperative work of the first cross feeding assembly, the second cross feeding assembly, the adjustable belt assembly, the tightening assembly and other structures. And the problems that feeding is not stable, and materials are prone to being clamped in a traditional feeding device are effectively solved, and therefore the overall efficiency and the packaging quality of the packaging machine are remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of feeding devices for packaging machines, and particularly relates to a feeding device for a packaging machine. Background Art

[0002] As an indispensable device in modern industrial production, the background art of packaging machines covers multiple aspects. First, the development of packaging machines is closely related to the prosperity of the commodity economy. With the acceleration of commodity circulation, the demand for packaging machines has been increasing continuously, which has promoted the rapid development of its technology. Second, the application of automation technology is an important milestone in the development of packaging machine technology. Automated packaging machines can realize an integrated process from the supply, forming, filling, sealing of packaging materials to the output of finished products, greatly improving production efficiency and packaging quality.

[0003] The feeding device of a packaging machine is an important part of the packaging machine, and its performance directly affects the efficiency and packaging quality of the packaging machine. Traditional feeding devices of packaging machines mostly adopt a batch feeding structure. The packaging bags are placed in the storage area, and the automatic feeding of the packaging bags is realized through the pneumatic adsorption structure at the top. However, this batch feeding structure has problems such as unstable feeding and easy jamming of materials, resulting in low packaging efficiency and uneven packaging quality. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a feeding device for a packaging machine.

[0005] The technical solution adopted to solve the above technical problem is: a feeding device for a packaging machine, including a feeding box, a first cross-feeding component is installed inside the feeding box, second cross-feeding components are respectively fixedly connected to both sides of the feeding box, a conveying frame is fixedly connected to one side of the middle part of the feeding box, an adjustable belt component is arranged inside the top end of the conveying frame, a tensioning component is arranged in the middle of the adjustable belt component, and the tensioning component is rotationally connected to the conveying frame.

[0006] Further, the first cross-feeding component includes a plurality of multi-section lifting columns, the bottom ends of the plurality of multi-section lifting columns are fixedly connected to the feeding box, and the telescopic ends of the plurality of multi-section lifting columns are commonly fixedly connected to a push plate, and the push plate is in a king character structure.

[0007] Through the above technical solution, a plurality of multi-section lifting columns can work together to realize the up and down movement of the push plate. When the packaging bag is placed on the feeding box, the telescopic ends of the multi-section lifting columns extend out, pushing the push plate to rise, thereby lifting and pushing the packaging bag forward. The design of the king character structure of the push plate enables it to stably hold the packaging bag, avoiding deviation or dropping during the pushing process, not only improving the stability of feeding, but also effectively solving the problem of easy material jamming in the traditional feeding device, thus improving the overall efficiency and packaging quality of the packaging machine.

[0008] Further, the second cross-feeding assembly includes a cabinet body, a mounting plate is fixedly connected to the middle of the cabinet body, a sliding column is fixedly connected between the top end of the mounting plate and the top end of the cabinet body, a threaded column is rotatably connected between the top end of the mounting plate and the top end of the cabinet body, a first convex plate is arranged between the sliding column and the threaded column, the top end of the first convex plate is fixedly connected to the mounting plate, and a second convex plate is fixedly connected to the inner side of the top of the cabinet body.

[0009] Through the above technical solution, the structural design in the cabinet body realizes the automatic adjustment and stable transmission of the packaging bag. The sliding column provides vertical support for the first convex plate to ensure its stability. When the packaging bag is transferred from the first cross-feeding assembly to the second cross-feeding assembly, it can ensure that the packaging bag is firmly clamped and smoothly conveyed to the next process. This flexible adjustment mechanism not only improves the accuracy of feeding, but also effectively avoids the damage of the packaging bag during the transmission process, further improving the overall performance of the packaging machine.

[0010] Further, an installation frame is arranged through between the sliding column and the threaded column. First hydraulic push rods are respectively fixedly connected to both sides of the installation frame. The telescopic ends of the two first hydraulic push rods are jointly fixedly connected to an L-shaped lifting plate. A slot is arranged at the bottom end of the L-shaped lifting plate, and the two sides of the slot are meshed with the two sides of the push plate.

[0011] Through the above technical solution, the design of the L-shaped lifting plate further enhances the stability and controllability of the packaging bag during the transmission process. As the power source, the first hydraulic push rod can accurately control the distance between the L-shaped lifting plates, and at the same time ensure the stable connection between the L-shaped lifting plate and the push plate during the lifting process, avoiding the shaking or slipping of the packaging bag during the transmission process. It not only improves the accuracy of feeding, but also effectively protects the integrity of the packaging bag, further improving the performance of the feeding device of the entire packaging machine.

[0012] Further, fixed collar rings are respectively fixedly connected to the upper and lower ends of the middle part of the installation frame. A threaded collar ring is rotatably connected to the inner side of the fixed collar ring. The threaded collar ring is rotationally engaged with the threaded column. Extension plates are respectively fixedly connected to the upper and lower ends of the side of the installation frame away from the fixed collar ring. The two extension plates are slidably connected through the sliding column.

[0013] Through the above technical solution, the combined design of the fixed collar ring and the threaded collar ring enables the threaded column to rotate stably and smoothly on the installation frame, not only enhancing the supporting force of the threaded column, but also ensuring the accuracy and stability during its rotation. At the same time, the through-sliding connection between the extension plate and the sliding column provides additional stability and flexibility for the entire device, enabling the packaging bag to move more smoothly during the transmission process, not only improving the overall performance of the feeding device, but also further enhancing the transmission efficiency of the packaging bag.

[0014] Further, a worm gear is rotatably connected to the middle of the mounting bracket. The cylindrical surface of the worm gear is rotationally engaged with the threaded column. One side of the middle of the worm gear is fixedly connected with a ratchet wheel. The ratchet wheel is rotatably connected to the surface of the mounting bracket. The top of the ratchet wheel is rotatably connected with a ratchet tooth. The ratchet tooth is of a fan-shaped structure. The two fan-shaped ends of the ratchet tooth are respectively slidably engaged with the tooth grooves of the ratchet wheel. The surface of the mounting bracket is fixedly connected with two limiting bosses on both sides. The limiting bosses are located inside the two fan-shaped ends of the ratchet tooth.

[0015] Through the above technical solution, the rotational engagement design of the worm gear and the threaded column enables the rotation of the threaded column to be more precisely controlled through the transmission of the worm gear. This not only improves the stability and accuracy of the rotation of the threaded column but also effectively avoids device failures or damages caused by improper rotation. At the same time, the cooperation design of the ratchet wheel and the ratchet tooth provides a one-way transmission mechanism for the entire device, ensuring that the threaded column can only rotate in a predetermined direction during the rotation process, thereby further enhancing the safety and reliability of the device. The two fan-shaped ends of the fan-shaped ratchet tooth are respectively slidably engaged with the tooth grooves of the ratchet wheel, enabling the ratchet wheel to smoothly change the direction during rotation and avoiding impacts caused by improper direction change.

[0016] Further, two grooves are symmetrically arranged in the middle of the fan-shaped surface of the ratchet tooth. A round-headed column is slidably connected between the grooves. The round-headed column is slidably connected through the mounting bracket. One end of the round-headed column located inside the mounting bracket is fixedly connected with a first spring. One end of the middle of the ratchet tooth is fixedly connected with a square sleeve. The square sleeve is located inside the mounting bracket. A sliding rod is slidably connected through the middle of the square sleeve. One end of the sliding rod away from the square sleeve is rotatably connected with an elliptical plate. A second spring is arranged in the middle of the sliding rod. The elliptical plate is rotatably connected to the mounting bracket. One side of the elliptical plate is fixedly connected with a lever. The lever is respectively slidably attached to the first convex plate and the second convex plate.

[0017] Through the above technical solution, the design of the two grooves in the middle of the ratchet fan-shaped surface not only provides a stable sliding track for the round-headed column, but also enables the ratchet to be more flexible in fine-tuning during rotation, thereby further improving the transmission accuracy and stability of the device. The through-sliding connection between the round-headed column and the mounting bracket, as well as the setting of the first spring, provides an elastic support for the ratchet, enabling the ratchet to have a certain buffer space when subjected to external forces and avoiding damage caused by impact. At the same time, the cooperative design of the square sleeve and the slide rod provides a guiding mechanism for the movement of the elliptical plate, enabling the elliptical plate to move stably along a predetermined trajectory. The setting of the second spring provides a restoring force for the elliptical plate, ensuring that the elliptical plate can return to its initial position smoothly and quickly during movement. The rotational connection between the elliptical plate and the mounting bracket, as well as the sliding fit design of the dial rod with the first convex plate and the second convex plate, provides a more complex transmission mechanism for the entire device, enabling the device to be flexibly adjusted and controlled according to actual needs during the feeding process, thereby further improving the adaptability and practicality of the device.

[0018] Further, a first motor is fixedly connected to the inner bottom end of the feed box, a double-headed roller is fixedly connected to the power output end of the first motor, single-headed rollers are fixedly connected to the bottoms of the two threaded columns, and transmission belts are respectively frictionally connected between the two single-headed rollers and the double-headed roller.

[0019] Through the above technical solution, the first motor can drive the two transmission belts to rotate synchronously through the double-headed roller. The friction connection between the transmission belt and the single-headed roller ensures the stable transmission of power and enables the two threaded columns to rotate synchronously and in opposite directions, which not only simplifies the transmission structure but also improves the transmission efficiency. When the first motor is started, the double-headed roller starts to rotate, drives the two single-headed rollers to rotate synchronously through the transmission belt, and then drives the two threaded columns to rotate in opposite directions. This rotation mode enables the feeding plates on the two threaded columns to move up and down simultaneously, thereby realizing the precise feeding of the packaging bags.

[0020] Further, a door is installed on one side of the feed box away from the conveying rack, a partition is arranged in the middle of the inner side of the feed box, an electric moving frame is slidably connected to the inner top end of the feed box, and two electric suction cups are installed at the bottom end of the electric moving frame.

[0021] Through the above technical solution, the electric moving frame can freely slide vertically inside the feed box, and the electric suction cups can suck and release the packaging bags under the drive of the electric moving frame, ensuring the stability and safety of the feeding process.

[0022] Furthermore, the conveyor frame includes a base frame, two transmission boxes are fixedly connected to both sides of the top of the base frame, two ends of the inner side of the transmission box are respectively rotatably connected to sprockets, and the sprockets are meshingly connected with a chain, one end of the transmission box is fixedly connected to a second motor, a power output end of the second motor is fixedly connected to a single sprocket, one end of the sprocket is fixedly connected to an adjustable belt assembly, a smooth plate is provided on the top of the base frame, telescopic sliding sleeves are provided at the four corners of the smooth plate and the surface of the base frame, a cylindrical push sleeve is slidably connected to the middle of the base frame, a fixed convex plate is fixedly connected to the middle of the bottom end of the smooth plate, a Z-shaped slide groove is provided in the middle of the fixed convex plate, a cylindrical push rod is slidably connected to the inner side of the Z-shaped slide groove, both sides of the cylindrical push rod are fixedly connected to the cylindrical push sleeves, and second hydraulic push rods are installed on both sides of the cylindrical push sleeve, and the second hydraulic push rod is fixedly connected to the base frame.

[0023] Through the above technical solution, after the second motor is started, it can drive the sprocket fixedly connected to it to rotate, and the sprocket drives other sprockets to rotate synchronously through the chain. This chain transmission method not only has a stable structure, but also has high transmission efficiency, and can ensure the stability and continuity of the packaging bag during the transportation process. At the same time, the setting of the belt assembly can be adjusted, so that the feeding device can adapt to packaging bags of different sizes and shapes, thereby improving its versatility and practicality.

[0024] Furthermore, the adjustable belt assembly includes a rotating shaft, connecting bosses are fixedly connected on both sides of the rotating shaft, the connecting bosses are fixedly connected to the connecting recessed columns, a slot is provided on the surface of the rotating shaft, a movable scroll is slidably connected to the surface of the rotating shaft, a fixing bolt is threadedly connected to the surface of the movable scroll, the fixing bolt is fitted with the bottom of the slot, and a feeding belt is provided between the movable scrolls on two different rotating shafts.

[0025] Through the above technical solution, the movable scroll can slide along the rotating shaft and be fixed in position through the cooperation of the fixing bolt and the card slot, allowing the user to adjust the distance between the movable scrolls according to the width of the packaging bag, thereby adjusting the width of the feeding belt. When the size of the packaging bag changes, it is only necessary to loosen the fixing bolt, slide the movable scroll to the appropriate position and retighten the fixing bolt to easily adapt to the new packaging bag size. The setting of this adjustable belt assembly not only improves the flexibility and adaptability of the feeding device, but also helps to ensure the stability and accuracy of the packaging bag during the transportation process, further improving the overall performance and efficiency of the packaging machine.

[0026] Further, the tensioning assembly includes two pulling plates which are respectively rotatably connected to the transmission box. Pressure rods are fixedly connected between the two ends of the two pulling plates respectively. The surfaces between the two pressure rods are in contact with the feeding belt. One end of the pulling plate is rotatably connected to a third hydraulic push rod. The telescopic end of the third hydraulic push rod is rotatably connected to the pulling plate, and the third hydraulic push rod is rotatably connected to the transmission box.

[0027] Through the above technical solution, when the feeding belt is used for a long time or the weight of the packaging bag is large, the belt may become loose, affecting the stability and accuracy of feeding. Therefore, the two pulling plates are rotatably connected through the transmission box and can flexibly adjust the angle. The pressure rods are arranged so that the two pulling plates can closely adhere to the surface of the feeding belt when rotating, and keep the belt in a tight state through the pressure. As the power source, the telescopic movement of the telescopic end of the third hydraulic push rod can push the pulling plate to rotate around the transmission box, thereby adjusting the pressure of the pressure rod on the feeding belt and further improving the overall performance and efficiency of the packaging machine.

[0028] The beneficial effects of the present invention are as follows:

[0029] 1. Through the integrated process design, the present invention realizes the automation, precision and high efficiency of the feeding device of the packaging machine. Through the coordinated work of structures such as the first cross-feeding assembly, the second cross-feeding assembly, the adjustable belt assembly and the tensioning assembly, it not only greatly improves the stability and accuracy of feeding, but also effectively solves the problems of unstable feeding and easy jamming in the traditional feeding device, thus significantly improving the overall efficiency and packaging quality of the packaging machine.

[0030] 2. Through the coordinated work of multiple lifting columns, the first cross-feeding assembly of the present invention realizes the stable lifting and pushing of the packaging bag, avoiding the offset or dropping of the packaging bag during the pushing process. The second cross-feeding assembly realizes the automatic adjustment and stable transmission of the packaging bag through the cooperation design of structures such as sliding columns, threaded columns and first convex plates, ensuring that the packaging bag is firmly clamped and smoothly conveyed to the next process. Through the flexible adjustment mechanism of the two, continuous feeding operation is realized, effectively ensuring the continuity of the packaging machine during the working process.

[0031] 3. The setting of the adjustable belt assembly in the present invention enables the feeding device to adapt to packaging bags of different sizes and shapes, improving its versatility and practicability. The tensioning assembly keeps the feeding belt in a tight state through the cooperation design of structures such as pulling plates, pressure rods and third hydraulic push rods, further improving the stability and accuracy of feeding. Brief Description of the Drawings

[0032] Figure 1 is the first structural schematic diagram of the present invention;

[0033] Figure 2 It is the second structural schematic diagram of the present invention;

[0034] Figure 3 It is the first schematic diagram of the feeding structure of the present invention;

[0035] Figure 4 It is the second schematic diagram of the feeding structure of the present invention;

[0036] Figure 5 It is the first schematic diagram of the mounting bracket structure of the present invention;

[0037] Figure 6 It is the second schematic diagram of the mounting bracket structure of the present invention;

[0038] Figure 7 It is the third schematic diagram of the mounting bracket structure of the present invention;

[0039] Figure 8 It is the first schematic diagram of the conveying bracket structure of the present invention;

[0040] Figure 9 It is the second schematic diagram of the conveying bracket structure of the present invention;

[0041] Figure 10 It is the third schematic diagram of the conveying bracket structure of the present invention;

[0042] Figure 11 It is the schematic diagram of the adjustable belt assembly structure of the present invention.

[0043] Reference numerals: 1, feeding box; 101, blocking door; 102, electric moving frame; 103, electric suction cup; 104, partition board; 105, first motor; 106, double-headed roller; 2, first cross-feeding assembly; 201, multi-section lifting column; 202, push plate; 3, second cross-feeding assembly; 301, cabinet; 302, mounting plate; 303, first convex plate; 304, sliding column; 305, threaded column; 306, mounting frame; 307, first hydraulic push rod; 308, L-shaped lifting plate; 309, second convex plate; 310, single-headed roller; 311, slot; 312, fixed collar; 313, threaded collar; 314, worm gear; 315, extension plate; 316, ratchet tooth; 317, ratchet wheel; 318, limiting convex platform; 319, groove; 320, first spring; 321, round head column; 322, square sleeve; 323, sliding rod; 324, second spring; 325, elliptical plate; 326, lever; 4, conveying frame; 401, chassis; 402, transmission box; 403, telescopic sliding sleeve; 404, smooth plate; 405, second motor; 406, cylindrical push sleeve; 407, cylindrical push rod; 408, Z-shaped sliding groove; 409, fixed convex plate; 410, second hydraulic push rod; 411, sprocket; 412, chain; 413, connecting concave column; 5, adjustable belt assembly; 501, rotating shaft; 502, movable reel; 503, feeding belt; 504, card slot; 505, fixing bolt; 506, connecting convex column; 6, tensioning assembly; 601, pulling plate; 602, pressing rod; 603, third hydraulic push rod; 7, transmission belt. Detailed implementation mode

[0044] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] As Figures 1 to 11 As shown in the figure, a feeding device of a packaging machine in this embodiment includes a feeding box 1. A first cross-feeding assembly 2 is installed inside the feeding box 1. Second cross-feeding assemblies 3 are fixedly connected to both sides of the feeding box 1 respectively. A conveying frame 4 is fixedly connected to one side of the middle part of the feeding box 1. An adjustable belt assembly 5 is arranged inside the top end of the conveying frame 4. A tensioning assembly 6 is arranged in the middle of the adjustable belt assembly 5. The tensioning assembly 6 is rotationally connected to the conveying frame 4. Through the coordinated work of structures such as the first cross-feeding assembly 2, the second cross-feeding assembly 3, the adjustable belt assembly 5 and the tensioning assembly 6, the stability and accuracy of feeding are not only greatly improved, but also the problems of unstable feeding and easy material jamming existing in the traditional feeding device are effectively solved, thereby significantly improving the overall efficiency and packaging quality of the packaging machine.

[0046] As Figures 1 to 2As shown in the figure, the first cross-feeding assembly 2 includes a number of multi-section lifting columns 201. The bottoms of the number of multi-section lifting columns 201 are fixedly connected to the feeding box 1. The telescopic ends of the number of multi-section lifting columns 201 are commonly and fixedly connected to a push plate 202. The push plate 202 is in a king character structure, enabling it to stably hold the packaging bag and prevent it from shifting or falling during the pushing process.

[0047] As Figures 3 to 4 shown in the figure, a door 101 is installed on one side of the feeding box 1 away from the conveying rack 4. A partition 104 is arranged in the middle of the inner side of the feeding box 1. An electric moving frame 102 is slidably connected to the top inner side of the feeding box 1. Two electric suction cups 103 are installed at the bottom end of the electric moving frame 102.

[0048] As Figures 3 to 4 shown in the figure, the second cross-feeding assembly 3 includes a cabinet 301. A mounting plate 302 is fixedly connected to the middle of the cabinet 301. A sliding column 304 is fixedly connected between the top end of the mounting plate 302 and the top end of the cabinet 301. A threaded column 305 is rotatably connected between the top end of the mounting plate 302 and the top end of the cabinet 301. A first convex plate 303 is arranged between the sliding column 304 and the threaded column 305. The top end of the first convex plate 303 is fixedly connected to the mounting plate 302. A second convex plate 309 is fixedly connected to the inner top of the cabinet 301. When the packaging bag is transferred from the first cross-feeding assembly 2 to the second cross-feeding assembly 3, it can ensure that the packaging bag is firmly clamped and smoothly conveyed to the next process.

[0049] As Figure 4 shown in the figure, a first motor 105 is fixedly connected to the bottom inner side of the feeding box 1. A double-headed roller 106 is fixedly connected to the power output end of the first motor 105. Single-headed rollers 310 are fixedly connected to the bottoms of the two threaded columns 305. Transmission belts 7 are respectively frictionally connected between the two single-headed rollers 310 and the double-headed roller 106.

[0050] As Figures 4 to 7 shown in the figure, a mounting frame 306 is arranged through between the sliding column 304 and the threaded column 305. First hydraulic push rods 307 are respectively fixedly connected to both sides of the mounting frame 306. The telescopic ends of the two first hydraulic push rods 307 are commonly and fixedly connected to an L-shaped lifting plate 308. A slot 311 is arranged at the bottom end of the L-shaped lifting plate 308. The slot 311 meshes with both sides of the push plate 202, avoiding the shaking or slipping of the packaging bag during the transmission process, not only improving the feeding accuracy, but also effectively protecting the integrity of the packaging bag, and further enhancing the performance of the feeding device of the entire packaging machine.

[0051] As Figures 4 to 7As shown, at the upper and lower ends of the middle part of the mounting frame 306, fixed collar rings 312 are respectively fixedly connected. Inside the fixed collar rings 312, a threaded collar ring 313 is rotatably connected. The threaded collar ring 313 is rotationally engaged with the threaded column 305. At the upper and lower ends of the side of the mounting frame 306 away from the fixed collar rings 312, extension plates 315 are respectively fixedly connected. The two side extension plates 315 are slidably penetrated and connected with the sliding column 304. The through-sliding connection between the extension plate 315 and the sliding column 394 provides additional stability and flexibility for the entire device, enabling the packaging bag to move more smoothly during the transmission process.

[0052] As Figures 4 to 7 shown, a worm gear 314 is rotatably connected to the middle part of the mounting frame 306. The cylindrical surface of the worm gear 314 is rotationally engaged with the threaded column 305. On one side of the middle part of the worm gear 314, a ratchet wheel 317 is fixedly connected. The ratchet wheel 317 is rotatably connected to the surface of the mounting frame 306. At the top of the ratchet wheel 317, a ratchet tooth 316 is rotatably connected. The ratchet tooth 316 is of a fan-shaped structure. The two fan-shaped ends of the ratchet tooth 316 are respectively slidably engaged with the tooth grooves of the ratchet wheel 317. On the surface of the mounting frame 306, two side limit bosses 318 are fixedly connected. The limit bosses 318 are located inside the two fan-shaped ends of the ratchet tooth 316, enabling the ratchet wheel 317 to change direction smoothly and smoothly during rotation, avoiding the impact caused by improper direction change.

[0053] As Figures 4 to 7 shown, two grooves 319 are symmetrically arranged in the middle of the fan-shaped surface of the ratchet tooth 316. A round-headed column 321 is slidably connected between the grooves 319. The round-headed column 321 is slidably penetrated and connected with the mounting frame 306. At one end of the round-headed column 321 located inside the mounting frame 306, a first spring 320 is fixedly connected. At one end of the middle part of the ratchet tooth 316, a square sleeve 322 is fixedly connected. The square sleeve 322 is located inside the mounting frame 306. A sliding rod 323 is slidably penetrated through the middle of the square sleeve 322. At the end of the sliding rod 323 away from the square sleeve 322, an elliptical plate 325 is rotatably connected. A second spring 324 is arranged in the middle of the sliding rod 323. The elliptical plate 325 is rotatably connected to the mounting frame 306. On one side of the elliptical plate 325, a dial rod 326 is fixedly connected. The dial rod 326 is respectively in sliding fit with the first convex plate 303 and the second convex plate 309.

[0054] As Figure 8As shown, the conveyor frame 4 includes a base frame 401, two transmission boxes 402 are fixedly connected to the top sides of the base frame 401, sprocket wheels 411 are rotatably connected to the inner ends of the transmission boxes 402, and chains 412 are meshingly connected between the sprocket wheels 411. One end of the transmission box 402 is fixedly connected to a second motor 405, and the power output end of the second motor 405 is fixedly connected to a single sprocket wheel 411. One end of the sprocket wheel 411 is fixedly connected to an adjustable belt assembly 5. A smooth plate 404 is arranged on the top of the base frame 401, and the smooth plate 404 has four Telescopic sliding sleeves 403 are provided at the corner positions and the surface of the base frame 401, a cylindrical push sleeve 406 is slidably connected to the middle of the base frame 401, a fixed convex plate 409 is fixedly connected to the middle of the bottom end of the smooth plate 404, a Z-shaped slide groove 408 is provided in the middle of the fixed convex plate 409, a cylindrical push rod 407 is slidably connected to the inner side of the Z-shaped slide groove 408, both sides of the cylindrical push rod 407 are fixedly connected to the cylindrical push sleeve 406, and second hydraulic push rods 410 are installed on both sides of the cylindrical push sleeve 406, and the second hydraulic push rod 410 is fixedly connected to the base frame 401.

[0055] like Figures 8 to 10 As shown, the adjustable belt assembly 5 includes a rotating shaft 501, and connecting bosses 506 are fixedly connected on both sides of the rotating shaft 501, and the connecting bosses 506 are fixedly connected to the connecting recessed columns 413. A card slot 504 is arranged on the surface of the rotating shaft 501, and a movable scroll 502 is slidably connected to the surface of the rotating shaft 501. A fixing bolt 505 is threadedly connected to the surface of the movable scroll 502, and the fixing bolt 505 is fitted with the bottom end of the card slot 504. A feeding belt 503 is arranged between the movable scrolls 502 on two different rotating shafts 501.

[0056] like Figures 8 to 10 As shown, the tensioning assembly 6 includes two pull plates 601, and the two pull plates 601 are rotatably connected to the transmission box 402 respectively. Pressure rods 602 are fixedly connected between the two ends of the two pull plates 601, and the two pressure rods 602 are in contact with the surface of the feeding belt 503. One end of the pull plate 601 is rotatably connected to the third hydraulic push rod 603, and the telescopic end of the third hydraulic push rod 603 is rotatably connected to the pull plate 601, and the third hydraulic push rod 603 is rotatably connected to the transmission box 402.

[0057] The working principle of this embodiment is as follows:

[0058] When in use, first place the packaging bag inside the feed box 1, start the first motor 105, and the power output end of the first motor 105 drives the double-headed roller 106 to rotate. The double-headed roller 106 drives the single-headed roller 310 at the bottom of the two threaded columns 305 to rotate through the transmission belt 7, and the threaded column 305 rotates accordingly.

[0059] At this time, the threads on the surface of the threaded post 305 are engaged with the internal threads of the threaded sleeve ring 313, pushing the mounting bracket 306 to rise along the sliding post 304. At the same time, the cylindrical surface of the worm gear 314 rotating in the middle of the mounting bracket 306 is rotationally engaged with the threaded post 305, and the worm gear 314 rotates. The ratchet wheel 317 fixed to one side of the middle of the worm gear 314 rotates accordingly. When the ratchet wheel 317 rotates, the two fan-shaped ends of the ratchet teeth 316 are respectively slidably engaged with the tooth grooves of the ratchet wheel 317, causing the ratchet wheel 317 to rotate unidirectionally, thereby driving the mounting bracket 306 to rise unidirectionally and preventing the packaging bag from moving backward during transportation.

[0060] During the rising process of the mounting bracket 306, the telescopic ends of the two first hydraulic push rods 307 jointly push the L-shaped lifting plate 308 to rise. The slot 311 at the bottom end of the L-shaped lifting plate 308 is engaged with both sides of the push plate 202. As the L-shaped lifting plate 308 rises, the push plate 202 is pushed, and the telescopic ends of several multi-section lifting columns 201 jointly push the push plate 202 to rise, thereby lifting and pushing the packaging bag forward until the packaging bag is pushed onto the L-shaped lifting plate 308 of the second cross-feed assembly 3.

[0061] At this time, by adjusting the dial rod 326, the dial rod 326 drives the elliptical plate 325 to rotate. The elliptical plate 325 drives the round head column 321 in the middle of the fan-shaped surface of the ratchet tooth 316 to slide inside the mounting bracket 306 through the slide rod 323. At the same time, the second spring 324 is compressed, and the two fan-shaped ends of the ratchet tooth 316 disengage from the tooth grooves of the ratchet wheel 317. At this time, the worm gear 314 can drive the ratchet wheel 317 to rotate in the reverse direction, and the mounting bracket 306 begins to descend, and the L-shaped lifting plate 308 also descends accordingly, preparing for the next push of the packaging bag.

[0062] At the same time, the packaging bag on the L-shaped lifting plate 308 of the second cross-feed assembly 3 slides stably as the L-shaped lifting plate 308 descends under the action of the second convex plate 309. The packaging bag at the top is adsorbed and lifted by the electric suction cup 103, and then driven by the electric moving frame 102 until it is transported to the smooth plate 404 of the transport rack 4. At this time, the second motor 405 is started, and the power output end of the second motor 405 drives a single sprocket 411 to rotate. The sprockets 411 are meshed and driven by a chain 412 to drive the feed belt 503 to rotate, thereby transporting the packaging bag forward.

[0063] During the feeding process, the distance between the movable rollers 502 can be adjusted according to the width of the packaging bag. Just loosen the fixing bolts 505, slide the movable rollers 502 to the appropriate position and tighten the fixing bolts 505 again. At the same time, when the feeding belt 503 becomes slack after long-term use or when the weight of the packaging bag is large, start the third hydraulic push rod 603. The telescopic end of the third hydraulic push rod 603 pushes the pull plate 601 to rotate around the transmission box 402. The pull plate 601 applies pressure to the feeding belt 503 through the pressure rod 602, so as to keep the feeding belt 503 in a taut state and ensure the stability and accuracy of the packaging bag during transportation.

[0064] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A feeding device for a packaging machine, comprising a feeding box (1), characterized in that: Inside the feeding box (1), a first cross-feed component (2) is installed. On both sides of the feeding box (1), second cross-feed components (3) are respectively fixedly connected. On one side of the middle of the feeding box (1), a conveying frame (4) is fixedly connected. Inside the top of the conveying frame (4), an adjustable belt component (5) is arranged. In the middle of the adjustable belt component (5), a tensioning component (6) is arranged. The tensioning component (6) is rotationally connected to the conveying frame (4); The first cross-feed component (2) includes a number of multi-section lifting columns (201). The bottoms of the number of multi-section lifting columns (201) are fixedly connected to the feeding box (1). The telescopic ends of the number of multi-section lifting columns (201) are jointly fixedly connected with a push plate (202). The push plate (202) is in a king character structure; The second cross-feed component (3) includes a cabinet body (301). In the middle of the cabinet body (301), a mounting plate (302) is fixedly connected. Between the top of the mounting plate (302) and the top of the cabinet body (301), a sliding column (304) is fixedly connected. Between the top of the mounting plate (302) and the top of the cabinet body (301), a threaded column (305) is rotationally connected. Between the sliding column (304) and the threaded column (305), a first convex plate (303) is arranged. The top of the first convex plate (303) is fixedly connected to the mounting plate (302). Inside the top of the cabinet body (301), a second convex plate (309) is fixedly connected; An installation frame (306) is arranged through between the sliding column (304) and the threaded column (305). On both sides of the installation frame (306), first hydraulic push rods (307) are respectively fixedly connected. The telescopic ends of the two first hydraulic push rods (307) are jointly fixedly connected with an L-shaped lifting plate (308). At the bottom end of the L-shaped lifting plate (308), a slot (311) is arranged. The slot (311) meshes with both sides of the push plate (202).

2. The feeding device of a packaging machine according to claim 1, characterized in that, At the upper and lower ends of the middle of the installation frame (306), fixed collar rings (312) are respectively fixedly connected. Inside the fixed collar rings (312), threaded collar rings (313) are rotationally connected. The threaded collar rings (313) are rotationally meshed with the threaded column (305). At the upper and lower ends of the side of the installation frame (306) away from the fixed collar rings (312), extension plates (315) are respectively fixedly connected. The two extension plates (315) are slidably connected through the sliding column (304).

3. The feeding device of a packaging machine according to claim 1, wherein, A worm gear (314) is rotationally connected to the middle of the installation frame (306). The cylindrical surface of the worm gear (314) is rotationally meshed with the threaded column (305). On one side of the middle of the worm gear (314), a ratchet wheel (317) is fixedly connected. The ratchet wheel (317) is rotationally connected to the surface of the installation frame (306). At the top of the ratchet wheel (317), a ratchet tooth (316) is rotationally connected. The ratchet tooth (316) is in a fan shape. The two fan-shaped ends of the ratchet tooth (316) are respectively slidably meshed with the tooth grooves of the ratchet wheel (317). On the surface of the installation frame (306), two side limiting convex platforms (318) are fixedly connected. The limiting convex platforms (318) are located inside the two fan-shaped ends of the ratchet tooth (316).

4. The feeding device of a packaging machine according to claim 3, wherein, Two grooves (319) are symmetrically arranged in the middle of the fan-shaped surface of the ratchet (316). A round-headed column (321) is slidably connected between the grooves (319). The round-headed column (321) is slidably connected through the mounting bracket (306). One end of the round-headed column (321) inside the mounting bracket (306) is fixedly connected to a first spring (320). One end in the middle of the ratchet (316) is fixedly connected to a square sleeve (322). The square sleeve (322) is located inside the mounting bracket (306). A slide rod (323) is slidably connected through the middle of the square sleeve (322). One end of the slide rod (323) away from the square sleeve (322) is rotatably connected to an elliptical plate (325). A second spring (324) is arranged in the middle of the slide rod (323). The elliptical plate (325) is rotatably connected to the mounting bracket (306). One side of the elliptical plate (325) is fixedly connected to a dial rod (326). The dial rod (326) is slidably attached to the first convex plate (303) and the second convex plate (309) respectively.

5. A feeding device of a packaging machine according to claim 1, characterized in that, A first motor (105) is fixedly connected to the inner bottom end of the feed box (1). A double-headed roller (106) is fixedly connected to the power output end of the first motor (105). Single-headed rollers (310) are fixedly connected to the bottoms of the two threaded columns (305). Transmission belts (7) are frictionally connected between the two single-headed rollers (310) and the double-headed roller (106) respectively.

6. The feeding device of a packaging machine according to claim 1, characterized in that, A retaining door (101) is installed on one side of the feed box (1) away from the conveying frame (4). A partition (104) is arranged in the middle of the inner side of the feed box (1). An electric moving frame (102) is slidably connected to the inner top end of the feed box (1). Two electric suction cups (103) are installed at the bottom end of the electric moving frame (102).

7. The feeding device of a packaging machine according to claim 1, characterized in that, The conveyor frame (4) comprises a base frame (401), two transmission boxes (402) are fixedly connected to the top and bottom sides of the base frame (401), the inner ends of the transmission boxes (402) are rotatably connected to sprockets (411), the sprockets (411) are meshingly connected to chains (412), one end of the transmission box (402) is fixedly connected to a second motor (405), the power output end of the second motor (405) is fixedly connected to a single sprocket (411), one end of the sprocket (411) is fixedly connected to an adjustable belt assembly (5), and a smooth plate (404) is arranged on the top of the base frame (401), the smooth plate (404) Telescopic sliding sleeves (403) are arranged at the four corner positions and on the surface of the base frame (401); a cylindrical push sleeve (406) is slidably connected to the middle of the base frame (401); a fixed convex plate (409) is fixedly connected to the middle of the bottom end of the smooth plate (404); a Z-shaped sliding groove (408) is arranged in the middle of the fixed convex plate (409); a cylindrical push rod (407) is slidably connected to the inner side of the Z-shaped sliding groove (408); both sides of the cylindrical push rod (407) are fixedly connected to the cylindrical push sleeve (406); a second hydraulic push rod (410) is installed on both sides of the cylindrical push sleeve (406); and the second hydraulic push rod (410) is fixedly connected to the base frame (401).

8. The feeding device of a packaging machine according to claim 1, characterized in that, The adjustable belt assembly (5) comprises a rotating shaft (501), connecting bosses (506) are fixedly connected to both sides of the rotating shaft (501), the connecting bosses (506) are fixedly connected to the connecting recessed columns (413), a clamping groove (504) is arranged on the surface of the rotating shaft (501), a movable scroll (502) is slidably connected to the surface of the rotating shaft (501), a fixing bolt (505) is threadedly passed through the surface of the movable scroll (502), the fixing bolt (505) is fitted with the bottom end of the clamping groove (504), and a feeding belt (503) is arranged between the movable scrolls (502) located on two different rotating shafts (501).

9. The feeding device of a packaging machine according to claim 1, characterized in that, The tensioning assembly (6) comprises two pull plates (601), and the two pull plates (601) are rotatably connected to the transmission box (402) respectively; pressure rods (602) are fixedly connected between the two ends of the two pull plates (601), and the two pressure rods (602) are in contact with the surface of the feeding belt (503); one end of the pull plate (601) is rotatably connected to a third hydraulic push rod (603); the telescopic end of the third hydraulic push rod (603) is rotatably connected to the pull plate (601), and the third hydraulic push rod (603) is rotatably connected to the transmission box (402).

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