A packaging machine

Abstract

The present invention discloses a packaging machine, which includes a base and a fuselage frame arranged on the base. It is characterized in that: on the base, there is a material transmission device capable of conveying packaging bags and heat-sealing the packaging bags during the conveying process; on the base, there is an annular feeding structure connected to the material transmission device; on the base, there are respectively a bag-straightening device capable of straightening the bag mouth of the packaging bag, a bag-tightening device capable of tightening the bag mouth of the packaging bag, a tying machine, a nailing machine, and an auxiliary nailing device capable of aligning the nailing machine with the bag mouth of the packaging bag. Each working station is integrated on a whole machine, enabling the whole machine to simultaneously have a transmission station, a heat-sealing station, a bag-straightening station, a bag-tightening station, a tying belt station, a nailing station, and a shipping station. Since the distance between the working stations is small, the conveying distance required for the packaging bags is greatly shortened, improving the work efficiency and reducing the occupied indoor space.

Description

Technical Field

[0001] The present invention relates to the field of packaging equipment, and particularly to a packaging machine. Background Art

[0002] For the packaging of traditional small workpiece product parts or materials such as food, the assembly line uses manual packaging and sorting, which requires a large amount of labor, high production costs, and low efficiency of manual packaging and sorting. In order to improve production efficiency and reduce labor costs, more and more factories use automated packaging machines to package products.

[0003] Existing automated packaging machines are generally divided into multiple complete machines, and the complete machines are arranged in a pipeline manner, allowing the material to complete the packaging process after passing through the workstations of multiple complete machines. This process generally includes the transmission workstation of the packaging bag, the heat-sealing workstation, the strapping workstation, the nailing workstation, the shipping workstation, etc. The whole process is actually to seal the packaging bag and tie up the upper part of the packaging bag to reduce the overall product volume.

[0004] Therefore, the existing automated packaging machines have the following disadvantages: 1. The arrangement of multiple complete machines occupies a large amount of indoor space, the transmission distance of the product is long, and the efficiency is low; 2. The heat-sealing process requires the packaging bag to stand still and wait, consuming a long time; 3. Before strapping and nailing, the upper part of the packaging bag is not thinned and straightened, making it easy to misalign during strapping and nailing and requiring rework.

[0005] Therefore, the existing packaging machines need to be further improved. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technology to be achieved by the present invention is to integrate multiple workstations into one complete machine, reduce the occupation of indoor space, make the transmission distance of the product shorter, and the efficiency higher.

[0007] The technical problem to be further solved by the present invention is:

[0008] To achieve the above object, the present invention adopts the following solutions:

[0009] A packaging machine, comprising a base, a body frame arranged on the base, a material transmission device arranged on the base for transmitting the packaging bag and heat-sealing the packaging bag during transmission, a ring-shaped feeding structure connected to the material transmission device arranged on the base, a bag-straightening device for straightening the bag mouth of the packaging bag, a bag-tightening device for tightening the bag mouth of the packaging bag, a strapping machine, a nailing machine, and an auxiliary nailing device for aligning the nailing machine with the bag mouth of the packaging bag, which are respectively arranged on the base.

[0010] Further, the material transfer device in the present invention includes a combined structure capable of closing the opening of the packaging bag. A transverse movement structure capable of axially moving the combined structure is provided on the base, and a lifting structure capable of moving the combined structure up and down is also provided on the base.

[0011] Further, the material transfer device in the present invention further includes a conveyor belt provided on one side of the base and capable of transporting the packaging bag, and a pushing device capable of pushing the packaging bag towards the combined structure is provided on one side of the conveyor belt.

[0012] Further, the bag-straightening device in the present invention includes a height-adjusting platform I provided on the base. A translation support frame is provided on the height-adjusting platform I. An active claw I capable of narrowing the bag mouth of the packaging bag and an active claw II capable of straightening the bag mouth of the packaging bag are provided on the translation support frame. A driving device I capable of driving the active claw I to work and a driving device II capable of driving the active claw II to work are provided on the translation support frame.

[0013] Further, the bag-twisting device in the present invention includes a support column body provided on the fuselage frame, and a bag-twisting device is provided on the support column body.

[0014] Further, the bag-twisting device in the present invention includes a plurality of up-and-down driving devices provided on the support column body. A rotation driving device is provided on the up-and-down driving device, and a bag-twisting claw capable of opening or closing is provided on the rotation driving device.

[0015] Further, the auxiliary nail-driving device in the present invention includes a height-adjusting platform II provided on the base. A fastening clip capable of clamping the upper part of the packaging bag is provided on the height-adjusting platform II. A positioning clip is provided on one side of the fastening clip. A multi-directional movement structure capable of moving the fastening clip and the positioning clip is provided on the height-adjusting platform II.

[0016] Further, the annular feeding structure in the present invention includes a rotating feeding disk provided on the base. A main motor capable of rotating the rotating feeding disk is provided inside the base. A plurality of bag placement platforms capable of placing the packaging bags are evenly arranged in an array on the rotating feeding disk, and a plurality of top rod vertical poles for positioning the packaging bags are provided on the bag placement platforms.

[0017] Further, the rotating feeding disk is connected to one side of the material transfer device. The bag-straightening device, the tie machine, the nail machine, and the auxiliary nail-driving device are sequentially arranged around the rotating feeding disk, and the bag-twisting device is provided above the rotating feeding disk.

[0018] In summary, the beneficial effects of the present invention compared with the prior art are:

[0019] 1. The present invention integrates each working station on a whole machine, enabling the whole machine to simultaneously have a transmission station, a thermoplastic sealing station, a bag-straightening station, a bag-twisting station, a bandaging station, a nailing station, and a shipping station. Since the distance between stations is small, the travel distance required for the transfer of the packaging bag during transmission is greatly shortened, increasing work efficiency and reducing the occupied indoor space.

[0020] 2. During the thermoplastic sealing process, the packaging bag can be simultaneously transferred to the next station, so that the packaging bag does not need to be stationary for a period of time during thermoplastic sealing, making the operation process of the whole machine smoother without a sense of jerk and increasing work efficiency.

[0021] 3. There are stations in the whole machine that can straighten and tighten the upper part of the packaging bag. The two stations are used in combination to make it more convenient to tie the tie band and nail when the packaging bag enters the next station, reducing problems such as unsuccessful tying of the tie band, nailing, or displacement and misalignment caused by the shape of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0023] Figure 2 It is one of the three-dimensional exploded schematic diagrams of the whole machine in the present invention.

[0024] Figure 3 It is the second three-dimensional exploded schematic diagram of the whole machine in the present invention.

[0025] Figure 4 It is a three-dimensional schematic diagram of the material transmission device in the present invention.

[0026] Figure 5 It is a three-dimensional exploded schematic diagram of the material transmission device in the present invention.

[0027] Figure 6 It is a three-dimensional schematic diagram of the bag-straightening device in the present invention.

[0028] Figure 7 It is a three-dimensional exploded schematic diagram of the bag-straightening device in the present invention.

[0029] Figure 8 It is a planar exploded schematic diagram of the bag-straightening device in the present invention.

[0030] Figure 9 It is a three-dimensional exploded schematic diagram of the first movable claw in the present invention.

[0031] Figure 10 It is one of the three-dimensional exploded schematic diagrams of the second movable claw in the present invention.

[0032] Figure 11 It is the second three-dimensional exploded schematic diagram of the second movable claw in the present invention.

[0033] Figure 12 This is a three-dimensional schematic diagram of the bag-twisting device in the present invention.

[0034] Figure 13 This is a three-dimensional exploded schematic diagram of the bag-twisting device in the present invention.

[0035] Figure 14 This is a three-dimensional exploded schematic diagram of the rotation driving device in the present invention.

[0036] Figure 15 This is a planar exploded schematic diagram of the up-and-down driving device in the present invention.

[0037] Figure 16 This is a three-dimensional schematic diagram of the auxiliary nailing device in the present invention.

[0038] Figure 17 This is one of the three-dimensional exploded schematic diagrams of the auxiliary nailing device in the present invention.

[0039] Figure 18 This is the second three-dimensional exploded schematic diagram of the auxiliary nailing device in the present invention.

[0040] Figure 19 This is a three-dimensional exploded schematic diagram of the first clamping driving device in the present invention. Detailed implementation manners

[0041] The present invention will be further described below in conjunction with the accompanying drawings and detailed implementation manners:

[0042] As Figures 1 to 19 shown, a packaging machine includes a base 1, a body frame 11 provided on the base 1. A material transmission device 2 capable of conveying packaging bags and heat-sealing the packaging bags during the conveying process is provided on the base 1. An annular feeding structure 3 connected to the material transmission device 2 is provided on the base 1. A bag-straightening device 4 capable of straightening the upper part of the packaging bag, a bag-twisting device 5 capable of tightening the upper part of the packaging bag, a tie machine 7, a nailing machine 71, and an auxiliary nailing device 6 capable of aligning the nailing machine 71 with the upper part of the packaging bag are respectively provided on the base 1. In this technical solution, the base is a square box body, and the body frame is a bracket provided on the base and formed by assembling multiple rod bodies. The material transmission device, the bag-straightening device, the bag-twisting device, the tie machine, the nailing machine, and the auxiliary nailing device are all provided on the base. The annular feeding structure cooperates with the material transmission device to convey the packaging bags on the whole machine until the packaging bags are packed after passing through each station.

[0043] In the present invention, the material transfer device 2 includes a combined structure 21 capable of closing the opening of the packaging bag. A transverse movement structure 22 allowing the combined structure 21 to move axially is provided on the base 1, and a lifting structure 23 allowing the combined structure 21 to move up and down is also provided on the base 1. The material transfer device can transfer the packaging bag from the outside into the machine and perform heat-sealing on the packaging bag during the transfer process.

[0044] In the present invention, the material transfer device 2 further includes a conveyor belt 24 provided on one side of the base 1 and capable of transferring the packaging bag, and a pushing device 25 capable of pushing the packaging bag towards the combined structure 21 is provided on one side of the conveyor belt 24.

[0045] In the present invention, the bag-straightening device 4 includes a height-adjusting platform 41 provided on the base 1. A translation support frame 42 is provided on the height-adjusting platform 41. An active claw 43 capable of narrowing the upper part of the packaging bag and an active claw 44 capable of straightening the upper part of the packaging bag are provided on the translation support frame 42. A driving device 45 capable of driving the active claw 43 to work and a driving device 46 capable of driving the active claw 44 to work are provided on the translation support frame 42. The bag-straightening device is used to tighten and narrow the upper part of the heat-sealed packaging bag that has been transferred and straighten it into an upright shape.

[0046] In the present invention, the bag-twisting device 5 includes a support column 51 provided on the machine body frame 11. A bag-twisting device is provided on the support column 51. After the upper part of the packaging bag is straightened into an upright shape, the bag-twisting device is used to twist the upper part of the bag into a twist shape, and then it is sent to a tie machine to tie a tie.

[0047] In the present invention, the bag-twisting device includes a plurality of up-and-down driving devices 52 provided on the support column 51. A rotation driving device 53 is provided on the up-and-down driving device 52. A twist claw 54 capable of opening or closing is provided on the rotation driving device 53.

[0048] In the present invention, the auxiliary nailing device 6 includes a height-adjusting platform 61 provided on the base 1. A fastening clip 62 capable of clamping the upper part of the packaging bag is provided on the height-adjusting platform 61. A positioning clip 63 is provided on one side of the fastening clip 62. A multi-directional movement structure allowing the fastening clip 62 and the positioning clip 63 to move is provided on the height-adjusting platform 61. The packaging bag with the tie tied is used by the auxiliary nailing device to align the nailing machine with the upper part of the packaging bag and drive the nail in, and then it is sent out through the shipping conveyor belt.

[0049] In the present invention, the annular feeding structure 3 includes a rotating feeding tray 31 disposed on the base 1, a main motor 32 capable of rotating the rotating feeding tray 31 disposed inside the base 1, a plurality of bag placement platforms 33 capable of placing packaging bags evenly arrayed on the rotating feeding tray 31, and a plurality of ejector rod uprights 34 for positioning the packaging bags disposed on the bag placement platforms 33. The annular feeding structure is used to be disposed on the whole machine to continuously convey the packaging bags to each working station in sequence for work.

[0050] In the present invention, the rotating feeding tray 31 is connected to one side of the material transmission device 2, the bag arranging device 4, the tying machine 7, the nailing machine 71, and the auxiliary nailing device 6 are sequentially arranged around the rotating feeding tray 31, and the bag twisting device 5 is disposed above the rotating feeding tray 31.

[0051] The material transmission device 2 of the packaging machine:

[0052] It includes a base 1, a combined structure 21 capable of closing the opening of the packaging bag disposed on the base 1, a conveyor belt 24 capable of transmitting the packaging bags disposed on one side of the base 1, a pushing device 25 capable of pushing the packaging bags towards the combined structure 21 disposed on one side of the conveyor belt 24, a transverse movement structure 22 capable of axially moving the combined structure 21 disposed on the base 1, and a lifting structure 23 capable of moving the combined structure 21 up and down disposed on the base 1. By placing a plurality of packaging bags with materials on the conveyor belt 24 and transmitting them in the direction of the pushing device 25, after being transmitted to the pushing device 25, the pushing device 25 pushes the packaging bags with materials into the working station of the combined structure 21, enabling the combined structure 21 to seal the upper part of the packaging bag through clamping and heat energy. At the same time, the combined structure 21 can move the packaging bag to the next working station position during the process of clamping and sealing the packaging bag through the transverse movement structure 22 to complete the entire work process. The lifting structure 23 can be used to lift the position of the combined structure 21, thereby adjusting the clamping and sealing position of the packaging bag.

[0053] The conveyor belt 24 is disposed on one side of the base 1, a conveyor support 241 is provided at the bottom of the conveyor belt 24 as a support, partition plates 242 are fixedly provided on the belt 537 of the conveyor belt 24 and evenly arrayed, and baffle plates 243 are provided on the conveyor support 241 and on both sides of the conveyor belt 24. The baffle plates 243 on the conveyor support 241 are provided on both sides of the conveyor belt 24 to prevent the packaging bags with materials from running off during transmission, and the partition plates 242 are used to place the packaging bags with materials at relatively equal distances one by one.

[0054] The pushing device 25 includes a pushing bracket 251 arranged on one side of the base 1. At the top of the pushing bracket 251 and at the end of the conveying direction of the conveyor belt 24, a limiting boss 252 is fixedly arranged. A notch 253 is arranged on the limiting boss 252. A cylinder is arranged on the top of the pushing bracket 251 and at the position of the notch 253. A pushing plate 254 is arranged on the movable end of the cylinder. When the conveyor belt 24 transports the packaging bag with materials to the notch 253 position of the limiting boss 252, the pushing plate 254 can be driven by the cylinder to push the packaging bag with materials into the working station of the combined structure 21. Multiple packaging bags with materials are continuously fed into the notch 253 position along with the conveyor belt 24, and the pushing plate 254 continuously sends the packaging bags at this position to the next working station. The starting mode of the cylinder is intermittent.

[0055] The combined structure 21 includes two symmetrically arranged combined plates 211 on one side of the base 1. A cylinder is arranged on one side of the combined plate 211. An adjusting plate 212 is arranged on the movable end of the cylinder. Adjusting screws 213 are screwed at the four corners of the adjusting plate 212. The combined plate 211 is connected to multiple adjusting screws 213. A heater is externally connected to the combined plate 211. The combined plates 211 can be driven by the cylinder to be closely attached to each other or separated from each other. When the packaging bag with materials is between the two combined plates 211, the two combined plates 211 being closely attached to each other will clamp and seal the upper opening of the packaging bag, and at the same time, thermoplastic sealing of the packaging bag is carried out. The combined plates 211 are kept in a heated state by externally connecting a heater. Therefore, when the combined plates 211 clamp the packaging bag, it will be thermoplastically sealed immediately. The distance and angle between the adjusting plate 212 and the combined plate 211 can be adjusted by the threaded rotation of the adjusting screws 213 on the adjusting plate 212. The heating position of the combined plate 211 is determined according to the distribution position of the heating tubes. In this technical solution, the heating tubes connected to the heater are horizontally arranged on the top of the combined plate 211.

[0056] Corrugations 214 are arranged on the combined plate 211, and the corrugations 214 of the two combined plates 211 can mesh with each other. The design of the corrugations 214 enables the two combined plates 211 to print plastic sealing patterns on the packaging bag therein and at the same time carry out thermoplastic sealing when they are close to each other.

[0057] The lifting structure 23 includes a telescopic frame 231 arranged on the base 1 and on one side of the combined plate 211. An electro-hydraulic cylinder 232 capable of driving the telescopic frame 231 to expand and contract and lift is arranged at the bottom of the telescopic frame 231. By driving the electro-hydraulic cylinder 232, the telescopic frame 231 can move up or down, so that the combined plate 211 drives the rodless cylinder 221 thereon to adjust the position up and down. It can be used to adjust the plastic sealing position of the combined plate 211 for the packaging bag when the materials inside the packaging bag change or the quantity varies.

[0058] The transverse movement structure 22 includes a rodless cylinder 1 221 disposed on the top of the telescopic frame 231. A transverse movement plate 222 is disposed on the rodless cylinder 1 221. The cylinder of the combined plate 211 is disposed on the transverse movement plate 222. The rodless cylinder 1 221 is a prior art and can drive the transverse movement plate 222 to move axially. During the process of the combined plate 211 clamping and heat-sealing the packaging bag, the rodless cylinder 1 221 is activated to drive the transverse movement plate 222 to move to the position of the next station. After the movement is in place, the combined plate 211 releases the packaging bag so that the heat-sealed packaging bag can directly fall to the position of the next station, thereby completing the entire transmission and heat-sealing work process.

[0059] The bag-straightening device 4 of the packaging machine:

[0060] It includes a base 1. On one side of the base 1, a height adjustment platform 1 41 is provided. On the height adjustment platform 1 41, a translation support frame 42 is provided. On the translation support frame 42, a movable claw 1 43 capable of narrowing the upper part of the packaging bag and a movable claw 2 44 capable of straightening the upper part of the packaging bag are provided. On the translation support frame 42, a driving device 1 45 capable of driving the movable claw 1 43 to work and a driving device 2 46 capable of driving the movable claw 2 44 to work are provided. This bag-straightening device is one of the stations on the base 1. The previous station of the bag-straightening device can heat-seal the packaging bag, and then send it to the bag-straightening device to narrow and straighten the upper part of the bag body. Subsequently, the next station uses a tie to tighten and seal the packaging bag. The station that starts simultaneously with the bag-straightening device is the bag-twisting station. While the packaging bag is being straightened, a bag-twisting station that starts simultaneously is provided on one side of the station to tighten the upper part of the straightened packaging bag.

[0061] The height adjustment platform 1 41 is a platform capable of adjusting the height. This bag-straightening device is supported based on the height adjustment platform 1 41. A movable claw 1 43 capable of narrowing the upper part of the bag is provided on the height adjustment platform 1 41. The movable claw 1 43 can axially translate back and forth through the translation support frame 42, so as to move to the position of the upper part of the packaging bag to narrow it, and cooperate with the movable claw 2 44 to straighten the upper part of the packaging bag body, completing the entire work process.

[0062] The height adjustment platform 1 41 includes a plurality of vertical rods 1 411 disposed on the base 1. A platform plate 1 412 capable of moving up and down is sleeved on the plurality of vertical rods 1 411 together. A screw rod lifting platform 1 413 is provided on the base 1. The movable end of the screw rod lifting platform 1 413 is disposed at the bottom of the platform plate 1 412. The vertical rods 1 411 are fixed on one side of the base 1 and are distributed at the four corners. The four corners of the platform plate 1 412 are sleeved on the vertical rods 1 411. Therefore, the platform plate 1 412 can move axially up and down. By lifting or lowering the movable end of the screw rod lifting platform 1 413, the platform plate 1 412 realizes the height adjustment function. The screw rod lifting platform 1 413 is a prior art.

[0063] The translation support frame 42 includes a cylinder 421 lying on a platform plate 412, a machine plate 422 is fixed on the movable end of the cylinder 421, and a frame 423 is arranged on one side of the machine plate 422. The cylinder 421 can drive the machine plate 422 and the frame 423 to move axially forward and backward, so as to move to the position of the packaging bag and tighten and straighten the upper part of the packaging bag.

[0064] The driving device 1 45 includes two rodless cylinders 2 451 arranged on the machine plate 422. The two rodless cylinders 2 451 are staggered front and back, and the moving tracks of the moving ends of the two rodless cylinders 2 451 are relatively moving. A guide rail 452 is horizontally arranged between the two rodless cylinders 2 451 on the machine plate 422. The driving device 1 45 is arranged as a whole on the machine plate 422 and moves forward and backward with the machine plate 422. The moving claw 1 43 moves left and right through the guide rail 452. The two rodless cylinders 2 451 arranged opposite to each other can drive the two moving claws 1 43 to move closer to each other and away from each other, thereby narrowing the upper part of the bag.

[0065] The movable claw 1 43 includes a claw clamp 1 431 symmetrically arranged on the left and right sides of the guide rail 452 for limiting movement. The claw clamp 1 431 is connected to the movable end of the rodless cylinder 2 451. A V-shaped clamp 432 is arranged on the claw clamp 1 431. The two symmetrical V-shaped clamps 432 can move in an interlaced manner to form a clamping hole. The claw clamp 1 431 can be driven to move in translation through the movement of the movable end of the rodless cylinder 2 451. The two symmetrical claw clamps 1 431 move away from or close to each other. When the two claw clamps 1 431 are close to each other and the V-shaped clamps 432 are interlaced, a clamping hole is formed between the two V-shaped clamps 432. The clamping hole position is the narrowing position of the packaging bag. If the packaging bag is placed between the two V-shaped clamps 432, the packaging bag will be narrowed when it approaches each other.

[0066] The movable claw 2 44 includes a plurality of layers 441 arranged in an evenly distributed array on the frame 423, an extension block 442 is fixedly arranged at the bottom of the layer 441, a claw clamp 2 443 is symmetrically hinged on one side of the extension block 442, and a V-shaped smoothing plate 444 is arranged on the side of the claw clamp 2 443, and two symmetrical V-shaped smoothing plates 444 can be staggered to form smoothing holes. The claw clamp 2 443 can be driven by the driving device 2 46 to rotate, and the two claw clamps 2 443 can move closer to or farther from each other by rotating at the same time, so that the V-shaped smoothing plates 444 can be staggered to form smoothing holes, so that when the packaging bag is between the two V-shaped smoothing plates 444, when the movable claw 2 44 is driven by the driving device 2 46 to move up and down, the V-shaped smoothing holes can straighten the upper part of the bag body of the packaging bag up and down.

[0067] The second driving device 46 is composed of a rotational driving structure 47 and a lifting driving structure 48. The rotational driving structure 47 can drive the second jaw 443 to rotate, and the lifting driving structure 48 can drive the second jaw 443 to move up and down.

[0068] The rotational driving structure 47 includes a second cylinder 471 disposed inside the extension block 442. A U-shaped bayonet 472 is provided on one side of the hinge point of the second jaw 443. A pull plate 473 capable of pressing against the U-shaped bayonet 472 to rotate the second jaw 443 is provided on the movable end of the second cylinder 471. When the movable end of the second cylinder 471 extends, the pull plate 473 pushes forward the inner sides of the two U-shaped bayonets 472, enabling the second jaw 443 to expand in a mutually separated motion. When the movable end of the second cylinder 471 retracts, the pull plate 473 pulls backward the outer sides of the two U-shaped bayonets 472, enabling the second jaw 443 to move in a mutually approaching motion to place the upper part of the packaging bag therein.

[0069] The lifting driving structure 48 includes a top support plate 481 fixedly provided at the top of the frame 423. A plurality of third cylinders 482 are provided on the top support plate 481, and the movable ends of the third cylinders 482 are fixedly connected to the layer plate 441. By the extension and retraction of the movable ends of the third cylinders 482, the layer plate 441 can be axially moved up and down on the frame 423, thereby driving the second jaw 443 to move up and down to achieve the action of straightening the upper part of the packaging bag.

[0070] The bag-twisting device 5 of the packaging machine:

[0071] It includes a support column 51 provided on the machine body frame 11, and a bag-twisting device is provided on the support column 51. The machine body frame is provided on the base 1 for fixing the support column 51, enabling the support column 51 to be above the base 1 and at the central position. The bag-twisting device can tighten the upper part of the packaging bag to a twist shape. A heat-sealing device can be provided at the front working station of the bag-twisting device, and a tie-attachment device can be provided at the rear working station, thereby completing the entire packaging process.

[0072] The bag-twisting device includes a plurality of up-and-down driving devices 52 provided on the support column 51. A rotational driving device 53 is provided on the up-and-down driving device 52, and a twist claw 54 capable of opening or closing is provided on the rotational driving device 53. The twist claw 54 can perform mechanical actions of grasping or releasing. The up-and-down driving device 52 can drive the twist claw 54 to move up and down, and the rotational driving device 53 can drive the twist claw 54 to rotate. The three cooperate to form a complete bag-twisting device, which can twist the upper part of the packaging bag set at a fixed position to enclose the internal material in the packaging bag.

[0073] The up-and-down driving device 52 includes a concave cavity 521 arranged on the four outer walls of the support column 51, a rodless cylinder 3 522 is arranged in the concave cavity 521, and a connecting tool 523 is fixed on the movable end of the rodless cylinder 3 522. In this solution, the support column 51 is square and has chamfered corners, the concave cavity 521 is arranged on the four avoidance surfaces of the support column 51, the rodless cylinder 3 522 is fixed in the concave cavity 521 and the movable end can drive the connecting tool 523 to move up and down.

[0074] The rotation drive device 53 includes a rotating bracket 531 arranged on one side of the connecting tool 523, a rotating shaft 532 is movably inserted on the connecting tool 523, a coupling 533 is arranged on the rotating shaft 532 and between the rotating bracket 531 and the connecting tool 523, a pulley 1 534 is arranged at the lower end of the rotating shaft 532, a rotating motor 535 is arranged on one side of the connecting tool 523, a pulley 2 536 is installed on the movable end of the rotating motor 535, and a belt 537 is sleeved on the pulley 1 534 and the pulley 2 536. When the connecting tool 523 is driven to move up and down, the rotating bracket 531 will be driven to move, and the rotating shaft 532 is inserted on the rotating bracket 531 with the rotating bracket 531 as support, and when the rotating motor 535 drives the pulley 2 536 to rotate, the belt 537 can also rotate the pulley 1 534, thereby rotating the rotating shaft 532.

[0075] The claw 54 includes an electric push rod 541 fixed at the lower end of the rotating shaft 532, a claw bracket 542 is arranged at the lower side of the electric push rod 541, and a plurality of L-shaped claw bodies 543 are hingedly connected to the outer periphery of the claw bracket 542. The movable end of the electric push rod 541 is inserted into the lower side of the claw bracket 542 and a driving bracket 544 is arranged, and a connecting rod 545 is hingedly connected between the driving bracket 544 and the L-shaped claw body 543. The claw 54 drives the L-shaped claw body 543 and the connecting rod 545 to move through the electric push rod 541, so as to realize the opening and closing of the claw 54. The movable end of the electric push rod 541 is pushed downward, and the driving bracket 544 is moved downward, so that the connecting rod 545 hinged between the L-shaped claw body 543 and the driving bracket 544 is turned outward, so that the L-shaped body connected to the connecting rod 545 is stretched outward. On the contrary, the movable end of the electric push rod 541 is retracted upward, and the L-shaped claw body 543 is folded accordingly. The specific tightening process is to drive the claw 54 to move downward to the upper part of the bag through the upper and lower driving devices 52, use the electric push rod 541 to make the claw 54 grasp the upper part of the bag, and then drive the claw 54 to rotate through the rotating driving device 53, so that the upper part of the bag is tightened into a twist shape.

[0076] A rotating feeding tray 31 capable of rotating and feeding materials to the lower part of the bag-twisting device is arranged below the support column 51. A main motor 32 capable of rotating the rotating feeding tray 31 is arranged in the base 1. A plurality of bag placement platforms 33 capable of placing packaging bags are evenly arranged in an array on the rotating feeding tray 31. A plurality of ejector rod vertical rods 34 for positioning the packaging bags are arranged on the bag placement platforms 33. Driven by the main motor 32, the rotating feeding tray 31 can rotate to transport the packaging bags with materials to the lower part of the bag-twisting claws 54. The bag placement platforms 33 and the ejector rod vertical rods 34 are used to fix the packaging bags in a fixed position so that the bag-twisting claws 54 can be aligned for operation. The cooperation between the rotating feeding tray 31 and the bag-twisting claws 54 can be that the rotating feeding tray 31 transports the packaging bags at the upper part of the untwisted bags to the lower part of each bag-twisting claw 54 each time, and at the same time twists a plurality of packaging bags. After twisting, the rotating feeding tray 31 rotates to send the next batch of packaging bags in again.

[0077] A connecting piece 511 is arranged at the top of the support column 51, and the connecting piece 511 is fixedly connected to the fuselage frame 11. The connecting piece 511 is used to connect and install the support column 51 on the fuselage frame 11.

[0078] The auxiliary nailing device 6 of the packaging machine:

[0079] It includes a base 1. An outfeed conveyor belt 12 is arranged on one side of the base 1. A nailing machine 71 is arranged on one side of the outfeed conveyor belt 12. A second height-adjusting platform 61 is also arranged on one side of the outfeed conveyor belt 12. A fastening clamp 62 capable of clamping the upper part of the packaging bag is arranged on the second height-adjusting platform 61. A positioning clamp 63 is arranged on one side of the fastening clamp 62. A multi-directional moving structure capable of moving the fastening clamp 62 and the positioning clamp 63 is arranged on the second height-adjusting platform 61. After processes such as transporting, packaging, and bag-twisting of the packaging bags filled with materials, it is necessary to nail the packaging bags to keep them in a closed state. After the packaging reaches the working station, this auxiliary nailing device uses the multi-directional moving structure to clamp the upper part of the bag that has been twisted of the packaging bag to the corresponding position by the positioning clamp 63. Subsequently, the fastening clamp 62 is activated to clamp the upper part of the packaging bag. There are two fastening clamps 62, and a space for the nailing machine 71 to nail is formed at the upper part of the bag. After the fastening clamp 62 clamps, the nailing machine 71 is immediately activated to drive U-shaped aluminum nails into the upper part of the bag to complete the work of nailing and fixing. Subsequently, the packaged bags after nailing enter the outfeed conveyor belt 12 for shipment, completing the entire packaging process of the packaging bags. The second height-adjusting platform 61 can be used to adjust the heights of the fastening clamp 62 and the positioning clamp 63, so that when nailing different-sized packaging bags, the height can be appropriately adjusted to adjust the nailing position.

[0080] The height adjustment platform 2 61 includes a plurality of vertical poles 2 611 arranged on the base 1, and a platform plate 2 612 that can move up and down is mounted on the plurality of vertical poles 2 611. A screw lifting platform 2 613 is arranged on the base 1, and the movable end of the screw lifting platform 2 613 is arranged at the bottom of the platform plate 2 612. The fastening clamp 62 and the positioning clamp 63 can be changed in position through the height adjustment platform 2 61, so that they can also play a role when changing packaging bags of different sizes. When working, the screw lifting platform 2 613 can be manually adjusted to allow the platform plate 2 612 to move up or down along the vertical pole 2 611 when being pushed.

[0081] The multi-directional movable structure includes a transverse movable device 65 disposed on the second platform plate 612, a longitudinal movable device 66 disposed on the transverse movable device 65, and a clamp driving device 1 67 capable of driving the fastening clamp 62 to move and a clamp driving device 2 68 capable of driving the positioning clamp 63 to move on the longitudinal movable device 66. The transverse movable device 65 and the longitudinal movable device 66 can respectively drive the fastening clamp 62 and the positioning clamp 63 to move transversely or longitudinally, and are used to align the packaging bag when moving to the position where the two bags are delivered. The clamp driving device 1 67 can drive the fastening clamp 62 to tighten or loosen, and the clamp driving device 2 68 can drive the positioning clamp 63 to clamp so that the upper part of the packaging bag can be straightened to the middle position of the fastening clamp 62.

[0082] The lateral movable device 65 includes a rodless motor 651 disposed on the platform plate 1 412, and a seat plate 652 is fixedly disposed on the movable end of the rodless motor 651. The rodless motor 651 is an existing mechanical tool that can be used to drive the axial movement of an object. The axial movement of the movable end of the rodless motor 651 can drive the seat plate 652 to move lateral axially.

[0083] The longitudinal movable device 66 includes a longitudinal cylinder 661 disposed on the seat plate 652, and a stand 662 is disposed on the movable end of the longitudinal cylinder 661. The stand 662 can be driven to move longitudinally by the longitudinal cylinder 661, and by cooperating with the transverse movable device 65, the mechanical structure above the stand 662 can be moved in multiple directions in the transverse and longitudinal directions. The cooperation of the transverse movable device 65 and the longitudinal movable device 66 is used to enable the fastening clamp 62 and the positioning clamp 63 to move to a position where the packaging bag can be clamped.

[0084] The clamping drive device 1, i.e., 67, includes a plurality of double-acting cylinders 671 disposed on one side of the vertical frame 662, and the fastening clamps 62 are disposed on the two movable ends of the double-acting cylinders 671. The double-acting cylinder 671 is a common mechanical structure in the prior art, which can drive the two fastening clamps 62 to move symmetrically at the same time. By approaching or separating the two fastening clamps 62, the upper part of the bag can be clamped. There are two groups of fastening clamps 62, which are distributed vertically. When the two groups of fastening clamps 62 clamp the upper part of the bag, the part of the bag between the two groups of fastening clamps 62 is the position where nails can be driven. The nail driver 71 can drive U-shaped aluminum nails into this place for fixation.

[0085] The clamping drive device 2, i.e., 68, includes a rotary cylinder 681 disposed on the top of the vertical frame 662. A rotary plate 682 is disposed on the movable end of the rotary cylinder 681. A positioning clamp cylinder 683 is disposed on the rotary plate 682. Two symmetrically disposed L-shaped connecting blocks 684 are hinged on the movable end of the positioning clamp cylinder 683. The positioning clamp 63 is fixed on one wall of the L-shaped connecting block 684. A convex plate 685 is disposed on the positioning clamp cylinder 683, and the L-shaped connecting block 684 is hinged on the convex plate 685. The rotary cylinder 681 is a common mechanical structure in the prior art, which can drive the rotary plate 682 to rotate, so that the positioning clamp 63 rotates. In the non-use state of the positioning clamp 63, the rotary plate 682 rotates to the horizontal position. In the use state, the rotary plate 682 rotates 90 degrees to the vertical position, aiming to avoid interference with other structures in the non-use state. The positioning clamp cylinder 683 can make the L-shaped connecting block 684 rotate through the extension of the movable end, so that the two symmetric L-shaped connecting blocks 684 move away from each other. When the packaging bag is between the two positioning clamps 63, the positioning clamp cylinder 683 retracts its movable end to make the two L-shaped connecting blocks 684 approach each other until the positioning clamp 63 clamps the upper part of the packaging bag.

[0086] When the packaging bag moves to the nailing station, through the cooperation of the lateral moving device 65 and the longitudinal moving device 66, the positioning clamp 63 and the fastening clamp 62 are located outside the upper part of the packaging bag. The positioning clamp 63 starts first to clamp the upper part of the packaging bag. Since the upper part of the bag is thinned at the previous station, the positioning clamp 63 can grasp the entire upper part of the bag. Subsequently, the fastening clamp 62 tightens the upper part of the bag, and the nail driver 71 immediately drives U-shaped aluminum nails to tighten the thinned part of the upper part of the bag with the U-shaped aluminum nails.

[0087] Tooth thread patterns 621 are disposed on the fastening clamp 62, and a movable clamping plate 631 is disposed on the positioning clamp 63. The tooth thread patterns 621 on the fastening clamps 62 of the same group can be meshed with each other to enhance the fastening degree of clamping the packaging bag. The clamping plate 631 is a component for contacting the packaging bag, which can be fastened to the positioning clamp 63 by screws and its position can be adjusted.

[0088] 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 packaging machine, comprising a base (1) and a fuselage frame (11) provided on the base (1), characterized in that: On the base (1), there is a material transmission device (2) that can convey packaging bags and seal the packaging bags during the transmission process. An annular feeding structure (3) connected to the material transmission device (2) is arranged on the base (1). On the base (1), there are respectively arranged a bag-straightening device (4) that can straighten the bag mouth of the packaging bag, a bag-tightening device (5) that can tighten the bag mouth of the packaging bag, a tying machine (7), a nailing machine (71), and an auxiliary nailing device (6) that can align the nailing machine (71) with the bag mouth of the packaging bag. The bag-straightening device (4) includes a height-adjusting platform one (41) arranged on the base (1). A translation support frame (42) is arranged on the height-adjusting platform one (41). An active claw one (43) that can narrow the bag mouth of the packaging bag and an active claw two (44) that can straighten the bag mouth of the packaging bag are arranged on the translation support frame (42). A driving device one (45) that can drive the active claw one (43) to work and a driving device two (46) that can drive the active claw two (44) to work are arranged on the translation support frame (42). The translation support frame (42) includes a cylinder one (421) lying on a platform board one (412). A machine board (422) is fixedly arranged on the movable end of the cylinder one (421). A machine frame (423) is arranged on one side of the machine board (422). The active claw two (44) includes a plurality of layer boards (441) arranged in a uniform array on the machine frame (423). An extension block (442) is fixedly arranged at the bottom of the layer board (441). Claw pliers two (443) are symmetrically hinged on one side of the extension block (442). A V-shaped straightening plate (444) is arranged on the side of the claw pliers two (443). Two symmetric V-shaped straightening plates (444) can intersect with each other to form a straightening hole. Through the drive of the driving device two (46), the claw pliers two (443) can rotate. The two claw pliers two (443) can approach or move away from each other by rotating simultaneously, so that the V-shaped straightening plates (444) can intersect with each other to form a straightening hole. When the packaging bag is between the two V-shaped straightening plates (444), when the active claw two (44) is driven by the driving device two (46) to move up and down, the V-shaped straightening hole performs an up-and-down straightening action on the upper part of the bag body of the packaging bag.

2. The packaging machine according to claim 1, characterized in that The material transmission device (2) includes a combined structure (21) that can close the opening of the packaging bag. A transverse movement structure (22) that can axially move the combined structure (21) is arranged on the base (1). A lifting structure (23) that can move the combined structure (21) up and down is also arranged on the base (1).

3. The packaging machine according to claim 2, characterized in that The material transmission device (2) further includes a conveyor belt (24) arranged on one side of the base (1) and capable of conveying packaging bags. A pushing device (25) that can push the packaging bag towards the combined structure (21) is arranged on one side of the conveyor belt (24).

4. A packaging machine according to claim 1, characterized in that The bag-tightening device (5) includes a support column body (51) arranged on the machine body frame (11). A bag-tightening device is arranged on the support column body (51).

5. A packaging machine according to claim 4, characterized in that The bag-twisting device includes a plurality of up-and-down driving devices (52) arranged on a support column (51), a rotation driving device (53) is arranged on the up-and-down driving device (52), and a twist claw (54) that can be opened or closed is arranged on the rotation driving device (53).

6. A packaging machine according to claim 1, characterized in that The auxiliary nailing device (6) includes a height adjustment platform two (61) arranged on a base (1), a fastening clip (62) capable of clamping the upper part of the packaging bag is arranged on the height adjustment platform two (61), a positioning clip (63) is arranged on one side of the fastening clip (62), and a multi-directional movement structure (64) capable of moving the fastening clip (62) and the positioning clip (63) is arranged on the height adjustment platform two (61).

7. A packaging machine according to claim 1, characterized in that The annular feeding structure (3) includes a rotating feeding tray (31) arranged on the base (1), a main motor (32) capable of rotating the rotating feeding tray (31) is arranged in the base (1), a plurality of bag placement platforms (33) capable of placing packaging bags are evenly arranged in an array on the rotating feeding tray (31), and a plurality of top rod vertical rods (34) for positioning the packaging bags are arranged on the bag placement platforms (33).

8. A packaging machine according to claim 7, characterized in that The rotating feeding tray (31) is connected to one side of the material transmission device (2), the bag-straightening device (4), the tie machine (7), the nailing machine (71), and the auxiliary nailing device (6) are sequentially arranged around the rotating feeding tray (31), and the bag-twisting device (5) is arranged above the rotating feeding tray (31).

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