Bag opening and sleeving machine

Abstract

A bag opening and sleeving machine comprises a frame, a conveying line arranged in the frame, a shaping mechanism arranged at the front end of the conveying line, a bag taking mechanism, a bag opening mechanism, a bag sleeving mechanism and a bag mouth arranging mechanism arranged at the rear side of the conveying line, and a belt pressing mechanism arranged at the end of the conveying line. The shaping mechanism comprises a material supporting frame, and a pushing plate and a positioning plate are arranged at the two sides of the material supporting frame. The bag taking mechanism comprises a tray device, and a suction cup is arranged at the front end of the tray device to suck a packaging bag. The bag opening mechanism comprises a bag opening arm, and a jaw on the bag opening arm opens the packaging bag. The bag sleeving mechanism comprises a jacking device and a bag sleeving device, the jacking device jacks up a PCB board, and the bag sleeving device sleeves the bag through a holding support. The bag mouth arranging mechanism comprises a bag tightening arm, and the bag tightening arm tightens the packaging bag. The belt pressing mechanism comprises a pressing strip, and the pressing strip presses the packaging bag opening to convey. The device can automatically take, open and sleeve bags, has high automation degree, high efficiency and wide applicability.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment, specifically to a bag opening and bagging machine. Background Technology

[0002] PCB boards are crucial electronic components, serving as the support for electronic devices. After processing, PCB boards need to be bagged, and then the bags are heat-sealed using a vacuum packaging machine. Currently, most companies in the market still manually bag the PCBs and then vacuum-pack them, a semi-automated packaging method that is inefficient.

[0003] The current challenge in the PCB bagging process is that there are many specifications and varieties of PCB products, the processes are complex, there are many batches and small quantities, so a single piece of equipment can hardly meet the bagging process for different specifications and models of PCBs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a bag opening and bagging machine to address the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A bag opening and bagging machine includes a frame with a conveyor line inside. A shaping mechanism is located at the front end of the conveyor line, and a bag picking mechanism, a bag opening mechanism, a bag bagging mechanism, and a bag opening mechanism are located at the rear of the conveyor line. A belt pressing mechanism is located at the end of the conveyor line. The conveyor line is flexible and has internal gaps. The shaping mechanism includes a material support frame that moves up and down within the gaps of the conveyor line. A pusher plate and a positioning plate are located on both sides of the material support frame. The bag picking mechanism includes a tray device containing packaging bags. A suction cup is installed at the front end of the tray device to pick up the packaging bags. The bag opening mechanism… The system includes an opening arm facing the packaging bag and a clamp that can open to open the packaging bag. The bag-fitting mechanism includes a lifting device and a bag-fitting device. The lifting device has a lifting bracket that moves up and down within the gap of the conveyor line. The bag-fitting device includes a clamping bracket with an adjustable clamping distance. The clamping bracket moves back and forth above the lifting bracket to fit the bag. The bag-opening mechanism includes a stretching arm that can open left and right to tighten the packaging bag. The pressing mechanism includes a pressing strip located on the side of the conveyor line that can move left and right to press the opening of the packaging bag and convey it along the conveyor line.

[0007] Furthermore, the shaping mechanism is equipped with a material-supporting cylinder, which is installed below the conveyor line via a material-supporting cylinder bracket. The piston end of the material-supporting cylinder is connected to the bottom of the material-supporting frame. Guide columns are provided on both sides of the material-supporting cylinder. The upper end of the guide column is connected to the material-supporting frame, and the lower end of the guide column passes through the material-supporting cylinder bracket. Roller brackets are evenly distributed on the surface of the material-supporting frame, and rollers are installed on top of the roller brackets. A gantry bracket is installed on the conveyor line, and a positioning plate cylinder is installed on the inner side of the gantry bracket. The piston end of the positioning plate cylinder is connected to the positioning plate. A rodless cylinder is installed above the gantry bracket, and a pusher plate is installed on the slider of the rodless cylinder.

[0008] Furthermore, the pallet device includes a working area and a bag storage area, both of which contain pallets on which packaging bags are placed. A working support is located within the working area of ​​the pallet device, situated on the side of the conveyor line. A working motor is mounted above the working support, and a lead screw is connected to the shaft extension of the working motor. A first lead screw slider is mounted on the lead screw, and a working back plate is mounted on its surface. The working back plate is connected to the working support via first guide rail pairs on both sides. Support arms are connected to both sides of the working back plate, and first support columns connect the support arms. The tray in the working area is placed on the first support column. A rodless cylinder 2 is installed on the outer side of the support arm. A cylinder support plate is installed on the slider of the rodless cylinder 2. A second guide rail pair is provided between the cylinder support plate and the support arm. A locking cylinder 1 is installed on one side of the cylinder support plate. A storage bracket is provided in the bag storage area of ​​the tray device. The storage bracket is located on the side of the working area. Multiple layers of second support columns are provided between the storage brackets. The tray in the bag storage area is placed on the second support columns. A locking cylinder 2 is installed on the side of each layer of the storage bracket. The tray has a corresponding locking cylinder 1 and a locking cylinder 2. Cylinder 2 is equipped with a lock hole plate. A working motor 2 is installed at the bottom of the working back plate. A lead screw 2 is connected to the shaft extension of the working motor 2. A second lead screw slider is installed on the lead screw 2. A lifting back plate is installed on the surface of the second lead screw slider. The two sides of the lifting back plate are connected to the working back plate via a third guide rail pair. Lifting arms are connected to both sides of the lifting back plate. Lifting support columns are installed on the lifting arms, located below the pallet in the working area. A linear slide module 1 is installed above the working area of ​​the pallet device. A bag-retrieving bracket plate is installed on the slider of the linear slide module 1. A lifting mechanism is installed in the middle of the bag-retrieving bracket plate. The machine has an upper suction cup bracket connected to the movable end of the lifting machine through the bag-collecting bracket plate. A working motor is installed on one side of the upper suction cup bracket. A driving wheel and a driven wheel are installed at both ends of the upper suction cup bracket. The shaft extension of the working motor is directly connected to the driving wheel. A synchronous belt is wound between the driving wheel and the driven wheel. Two suction cup mounting arms are connected to the front and rear sides of the synchronous belt through a clamping plate. The surface of the clamping plate is connected to the suction cup bracket through a fourth guide rail pair. An upper suction cup is installed at the end of the suction cup mounting arm. A lower suction cup is set below the upper suction cup. The lower suction cup is connected to the side of the conveyor line through a lower suction cup bracket.

[0009] Furthermore, an electric slide table one and an electric slide table two are provided above the bag opening mechanism. Electric slide table one is horizontally mounted on the frame, and a slide bracket one is connected to the slider of electric slide table one. Electric slide table two is vertically mounted on the slide bracket one, and a lead screw slide table one is connected to the slider of electric slide table two through a triangular frame one. A working motor four is connected to one side of the lead screw slide table one, and a working lead screw one is connected to the shaft extension of the working motor four. The working lead screw one is composed of a lead screw one with positive lead and a lead screw two with negative lead. The lead screw 1 and lead screw 2 are connected to each other via a first coupling. The bag opening arm is connected to the lead screw sliders of lead screw 1 and lead screw 2. Two linear guide rails are installed on the bag opening arm. An upper clamping arm is connected to the slider of one linear guide rail, and a lower clamping arm is connected to the slider of the other linear guide rail. A jaw is formed between the lower parts of the upper clamping arm and the lower clamping arm. A rack is provided on the surface of the upper clamping arm and the lower clamping arm, and a gear is provided between the racks. A working motor 5 is connected to the bag opening arm, and the shaft extension of the working motor 5 is directly connected to the gear.

[0010] Furthermore, a through air inlet is provided on the lower clamp arm.

[0011] Furthermore, the lifting device is equipped with a lifting cylinder, which is mounted below the conveyor line via a lifting cylinder bracket. The piston end of the lifting cylinder is connected to the bottom of the lifting bracket. Guide columns 2 are provided on both sides of the lifting cylinder. The upper end of the guide columns 2 is connected to the lifting bracket, and the lower end of the guide columns 2 passes through the lifting cylinder bracket. A lead screw slide 2 is provided inside the lifting bracket. A working motor 6 is connected to one side of the lead screw slide 2. A working lead screw 2 is connected to the shaft extension of the working motor 6. The working lead screw 2 is composed of a lead screw 3 with a positive lead and a lead screw 4 with a negative lead. The lead screw 3 and lead screw 4 are connected to each other via a second coupling. Lifting arms are connected to the lead screw sliders on the lead screw 3 and lead screw 4. Lifting arms are evenly distributed with lifting elements. The column and the lifting column extend from the gap in the conveyor line. Above the bagging device, there are electric slide table three and electric slide table four. Electric slide table three is horizontally mounted on the frame. A slide bracket two is connected to the slider of electric slide table three. Electric slide table four is vertically mounted on slide bracket two. A lead screw slide table three is connected to the slider of electric slide table four through a triangular frame two. A working motor seven is connected to one side of the lead screw slide table three. A working lead screw three is connected to the shaft extension of working motor seven. The working lead screw three is composed of a lead screw five with positive lead and a lead screw six with negative lead. The lead screw five and lead screw six are connected to each other through a third coupling. The clamping bracket is connected to the lead screw slider of lead screw five and lead screw six. The end of the clamping bracket is connected to a flange for clamping support.

[0012] Furthermore, the bag-feeding mechanism includes a linear slide module two, with a bag-stretching bottom support connected to the bottom of the linear slide module two. A bag-stretching support plate is mounted on the slider of the linear slide module two. A working motor eight is mounted on one side of the bag-stretching support plate. A driving wheel two and a driven wheel two are respectively mounted at both ends inside the bag-stretching support plate. The shaft extension of the working motor eight is directly connected to the driving wheel two. A synchronous belt two is wound between the driving wheel two and the driven wheel two. Two bag-stretching arms are connected to the front and rear sides of the synchronous belt two through clamping plates two. The surface of the clamping plates two is connected to the bag-stretching support plate through a fifth guide rail pair. A bag-feeding mechanism adjustment support plate is connected to the side of the conveyor line. A working motor nine is mounted on the bag-feeding mechanism adjustment support plate. A lead screw three is connected to the shaft extension of the working motor nine. A third lead screw slider is mounted on the lead screw three. The surface of the third lead screw slider is connected to the bag-stretching bottom support. The two sides of the bag-stretching bottom support are connected to the bag-feeding mechanism adjustment support plate through a sixth guide rail pair.

[0013] Furthermore, the pressing mechanism is equipped with an electric slide table five. The back sides of the electric slide table five are connected to the side of the conveyor line via a sixth guide rail pair. A pressing strip bracket is installed on the slider of the electric slide table five. The pressing strip bracket extends towards the surface of the conveyor line. The pressing strip is connected to the end of the pressing strip bracket. A lifting cylinder is installed on the side of the conveyor line. The lifting cylinder is located below the electric slide table five. The piston end of the lifting cylinder is connected to the electric slide table five.

[0014] Compared with the prior art, the bag opening and bagging machine of the present invention automatically picks up, opens and puts in bags, with a high degree of automation and high efficiency. Moreover, it can meet the bagging process of PCB boards of different specifications and models, and has wide applicability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the conveyor line of the present invention;

[0017] Figure 3 This is a schematic diagram of the shaping mechanism of the present invention;

[0018] Figure 4 yes Figure 3 Sectional view at point AA;

[0019] Figure 5 This is a schematic diagram of the bag-taking mechanism of the present invention;

[0020] Figure 6 This is a schematic diagram of the tray device of the present invention;

[0021] Figure 7 yes Figure 6 Sectional view at point BB;

[0022] Figure 8 This is a top view of the tray device of the present invention;

[0023] Figure 9 This is a schematic diagram of the structure of the tray of the present invention;

[0024] Figure 10 This is a schematic diagram of the suction cup installation in the bag-retrieving mechanism of the present invention;

[0025] Figure 11 This is a side view of the suction cup installation in the bag-retrieving mechanism of the present invention;

[0026] Figure 12 This is a schematic diagram of the structure of the suction cup mounting arm and the synchronous connection in this invention;

[0027] Figure 13 This is a schematic diagram of the bag-opening mechanism of the present invention;

[0028] Figure 14 This is a schematic diagram of the connection between the bag-opening arm and the lead screw slide of the present invention;

[0029] Figure 15 yes Figure 14 Sectional view at CC;

[0030] Figure 16 This is a schematic diagram of the bagging mechanism of the present invention;

[0031] Figure 17 This is a schematic diagram of the lifting device of the present invention;

[0032] Figure 18 yes Figure 17 Sectional view at point DD;

[0033] Figure 19 This is a schematic diagram of the bagging device of the present invention;

[0034] Figure 20 This is a schematic diagram of the bag opening mechanism of the present invention;

[0035] Figure 21 This is a schematic diagram of the pressing mechanism of the present invention;

[0036] Figure 22 This is a side view of the tape pressing mechanism of the present invention;

[0037] The components include: 1. Frame; 2. Conveyor line; 3. Shaping mechanism; 4. Bag picking mechanism; 5. Bag opening mechanism; 6. Bag covering mechanism; 7. Bag opening mechanism; 8. Belt pressing mechanism; 9. Desiccant dispensing machine; 21. First flexible conveyor line; 22. Second flexible conveyor line; 23. Third flexible conveyor line; 311. Material support frame; 312. Pusher plate; 313. Positioning plate; 314. Material support cylinder; 315. Guide column one; 316. Roller bracket; 317. Roller; 318. Gantry bracket; 319. Positioning plate cylinder; 320. Rodless cylinder one; 411. Working area; 412. Bag storage area; 413. Tray; 414. Working bracket; 415. Working motor one; 416. Lead screw one; 417. First lead screw slide. 418. Working backplate, 419. First guide rail pair, 420. Support arm, 421. Rodless cylinder II, 422. Cylinder bracket plate, 423. Second guide rail pair, 424. Locking cylinder I, 425. Storage bracket, 426. Locking cylinder II, 427. Working motor II, 428. Lead screw II, 429. Second lead screw slider, 430. Lifting backplate, 431. Third guide rail pair, 432. Lifting arm, 433. Lifting support column, 434. Linear slide module I, 435. Bag retrieval bracket plate, 436. Worm gear lift, 437. Upper suction cup bracket, 438. Working motor III, 439. Drive wheel I, 440. Driven wheel I, 441. Synchronous belt I, 442. Suction cup mounting arm, 443. Fourth guide rail pair, 444, upper suction cup, 445, lower suction cup, 446, lower suction cup bracket, 511, electric slide table one, 512, electric slide table two, 513, slider bracket one, 514, lead screw slide table one, 515, working motor four, 516, lead screw one, 517, lead screw two, 518, bag opening arm, 519, upper clamp arm, 520, lower clamp arm, 521, gear, 522, working motor five, 523, air inlet, 611, lifting cylinder, 612, lifting bracket, 613, guide column two, 614, lead screw slide table two, 615, working motor six, 616, lead screw three, 617, lead screw four, 618, lifting arm, 619, lifting column, 620, electric slide table three, 621, electric slide table four, 62 2. Slider bracket 2, 623. Lead screw slide 3, 624. Working motor 7, 625. Clamping bracket, 711. Linear slide module 2, 712. Bag bottom bracket, 713. Bag bracket plate, 714. Working motor 8, 715. Drive wheel 2, 716. Driven wheel 2, 717. Synchronous belt 2, 718. Bag arm, 719. Fifth guide rail pair, 720. Bag opening mechanism adjustment bracket plate, 721. Working motor 9, 722. Lead screw 3, 723. Third lead screw slider, 811. Electric slide 5, 812. Sixth guide rail pair, 813. Pressure strip bracket, 814. Pressure strip, 815. Lifting cylinder, 4131. Outer frame, 4132. Lower support plate, 4133. Positioning seat, 4134. Lock hole plate. Detailed Implementation

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below.

[0039] like Figures 1 to 22 As shown, a bag opening and bagging machine includes a frame 1, a conveyor line 2 inside the frame 1, a shaping mechanism 3 at the front end of the conveyor line 2, a bag picking mechanism 4, a bag opening mechanism 5, a bagging mechanism 6, and a bag opening sorting mechanism 7 at the rear of the conveyor line 2, and a belt pressing mechanism 8 at the end of the conveyor line 2. The conveyor line 2 is a flexible conveyor line with multiple conveyor belts evenly distributed inside, with gaps between the conveyor belts. In this embodiment, the conveyor line 2 is composed of a first flexible conveyor line 21, a second flexible conveyor line 22, and a third flexible conveyor line 23. The first flexible conveyor line 21, the second flexible conveyor line 22, and the second flexible conveyor line 23 are interleaved by conveyor belts to form a continuous conveying conveyor line 2. The shaping mechanism 3 is located below the first flexible conveyor line 21, the bag picking mechanism 4, the bag opening mechanism 5, the bagging mechanism 6, and the bag opening sorting mechanism 7 are located on both sides of the second flexible conveyor line 23, and the belt pressing mechanism 8 is located on the side of the third flexible conveyor line 23.

[0040] The shaping mechanism 3 includes a material support frame 311, which moves up and down within the gap of the first flexible conveyor line 21. A pusher plate 312 and a positioning plate 313 are respectively provided on both sides of the material support frame 311. A material support cylinder 314 is provided below the shaping mechanism and is mounted below the first flexible conveyor line 21 via a material support cylinder bracket. The piston end of the material support cylinder 314 is connected to the bottom of the material support frame 311. Guide posts 315 are provided on both sides of the material support cylinder 314. The upper end of the guide post 315 is connected to the material support frame 311, and the lower end of the guide post 315 passes through the material support cylinder bracket. To reduce friction when the guide post 315 slides, a linear bearing is provided between the guide post 315 and the material support cylinder bracket. Roller supports are evenly distributed on the surface of the material support frame 311. The first flexible conveyor line 21 is supported by a support frame 316 and a roller 317 mounted on top of the roller support 316. During operation, the support frame 311 is lifted by the material support cylinder 314, which lifts the PCB board on the surface of the first flexible conveyor line 21 upwards. A gantry support 318 is mounted on the first flexible conveyor line 21. A positioning plate cylinder 319 is mounted on the inner side of the gantry support 318. The piston end of the positioning plate cylinder 319 is connected to the positioning plate 313, controlling the positioning plate 313 to extend. A rodless cylinder 320 is mounted above the gantry support 318. The rodless cylinder 320 is an Airtac magnetic coupling rodless cylinder. The slider of the rodless cylinder 320 is connected to the pusher plate 312. The rodless cylinder 320 controls the pusher plate 312 to move, pushing one side of the PCB board on the first flexible conveyor line 21 to fit against the positioning plate, so that the PCB board is neatly conveyed forward.

[0041] The bag-retrieving mechanism 4 includes a tray device containing packaging bags. A suction cup is mounted at the front end of the tray device to pick up the packaging bags. In this embodiment, the tray device includes a working area 411 and a bag storage area 412. Both the working area 411 and the bag storage area 412 are equipped with trays 413 on which the packaging bags are placed. A working support 414 is provided within the working area 411 of the tray device. The working support 414 is located on the side of the second flexible conveyor line 22, and a working motor 415 is mounted above the working support 414. A lead screw 416 is connected to the shaft extension of motor 415. A first lead screw slider 417 is provided on the lead screw 416. A working back plate 418 is mounted on the surface of the first lead screw slider 417. The two sides of the working back plate 418 are connected to the working bracket through the first guide rail pair 419. Support arms 420 are connected to the two sides of the working back plate 418. A first support column is connected between the support arms 420. The tray 413 of the working area is placed on the first support column. A rodless cylinder 421 is installed on the outside of one of the support arms 420. The rodless cylinder 421 adopts Airtac magnetic coupling. A rodless cylinder, specifically the second rodless cylinder 421, has a cylinder support plate 422 mounted on its slider. A second guide rail pair 423 is provided between the cylinder support plate 422 and the support arm 420. A locking cylinder 424 is mounted on one side of the cylinder support plate 422. A storage bracket 425 is provided in the bag storage area of ​​the tray device. The storage bracket 425 is located on the side of the working area. Multiple layers of second support columns are provided between the storage brackets 425. The tray 413 in the bag storage area is placed on the second support columns. A locking cylinder 424 is mounted on the side of each layer of the tray on the storage bracket 425. 26. A second working motor 427 is installed at the bottom of the working back plate 418. A second lead screw 428 is connected to the shaft extension of the second working motor 427. A second lead screw slider 429 is provided on the second lead screw slider 429. A lifting back plate 430 is installed on the surface of the second lead screw slider 429. The two sides of the lifting back plate 430 are connected to the working back plate 418 through a third guide rail pair 431. Lifting arms 432 are connected to the two sides of the lifting back plate 430. Lifting support columns 433 are provided on the lifting arms 432. The lifting support columns 433 are located below the tray 413 of the working area 411.

[0042] In this embodiment, the tray 413 includes an outer frame 4131 and a lower support plate 4132 disposed within the outer frame 4131. An inwardly flared flange is provided around the bottom perimeter of the outer frame 4131, supporting the lower support plate 4132. The surface of the lower support plate 4132 is connected to triangularly distributed positioning seats 4133, which block the packaging bags to prevent them from moving left or right. Locking holes 4134 are provided on both sides of the outer frame 4131 corresponding to locking cylinders 424 and 426. In both the working area 411 and the bag storage area 412, the tray 413 has corresponding locking cylinders inserted into the locking holes for fixation. During operation, as the packaging bags are continuously consumed, a lifting arm 432 is driven by a second working motor 427. The lifting support column 433 on the lifting arm 432 lifts the lower support plate 413 within the tray 413. 32. The packaging bags on the lower pallet 4132 are gradually raised for feeding. After the packaging bags in the lower pallet 4132 are used up, the lower pallet 4132 is reset. Driven by the working motor 415, the pallet 413 in the working area is raised and lowered to the empty pallet area of ​​the bag storage area 412. The rodless cylinder 421 is working. Since the locking cylinder 424 on the cylinder support plate 422 locks the pallet, the rodless cylinder 421 sends the pallet into the bag storage area 412 during the working process. Then the locking cylinder 424 disengages from the locking plate 4134. Then the support arm 420 moves to the area of ​​the bag storage area 412 where the pallet is stored. The locking cylinder 426 releases from the pallet, and the locking cylinder 424 locks the pallet. The pallet 413 in the bag storage area 412 is pulled out and enters the working area 411, completing the pallet switching.

[0043] A linear slide module 434 is installed above the working area 411 of the tray device. A bag-collecting support plate 435 is mounted on the slider of the linear slide module 434. A worm gear lift 436 is installed in the middle of the bag-collecting support plate 435. The movable end of the worm gear lift 436 passes through the bag-collecting support plate 435 and is connected to an upper suction cup bracket 437. A working motor 438 is installed on one side of the upper suction cup bracket 437. A drive wheel 439 and a driven wheel 440 are respectively installed at both ends inside the upper suction cup bracket 437. The shaft extension of the working motor 438 is directly connected to the drive wheel 439. A synchronous winding is connected between the drive wheel 439 and the driven wheel 440. The synchronous belt 441 has two suction cup mounting arms 442 connected to its front and rear sides via a clamping plate. The surface of the clamping plate is connected to the suction cup bracket 437 via a fourth guide rail pair 443. An upper suction cup 444 is mounted at the end of each suction cup mounting arm 442, and a lower suction cup 445 is located below the upper suction cup 444. The lower suction cup 445 is connected to the side of the second flexible conveyor line 22 via a lower suction cup bracket 446. When the bag picking mechanism 4 picks up a bag, the upper suction cup 444 is controlled by the linear slide module 434 to pick up the packaging bag from the tray 413 and then move it to the lower suction cup bracket 446. The upper suction cup 444 and the lower suction cup 445 suction each other, opening the packaging bag.

[0044] The bag opening mechanism 5 includes a bag opening arm facing the packaging bag. The bag opening arm is equipped with jaws that can open to open the packaging bag. Above the bag opening mechanism 5 are two electric slides: a first electric slide 511 and a second electric slide 512. The first electric slide 511 is horizontally mounted on the frame 1, and a slide bracket 513 is connected to the slide of the first electric slide 511. The second electric slide 512 is vertically mounted on the slide bracket 513, and a triangular frame is connected to the slide of the second electric slide 512. A frame is connected to a lead screw slide 514. A working motor 515 is connected to one side of the lead screw slide 514. A working lead screw is connected to the shaft extension of the working motor 515. The working lead screw is composed of a lead screw 516 with a positive lead and a lead screw 517 with a negative lead. The lead screw 516 and lead screw 517 are connected to each other via a first coupling. The bag opening arm 518 is connected to the lead screw slide of the lead screw 516 and lead screw 517. Two linear guides are mounted on the upper part of the bag opening arm. An upper clamping arm 519 is connected to the slider of one linear guide, and a lower clamping arm 520 is connected to the slider of the other linear guide. A jaw is formed between the lower parts of the upper clamping arm 519 and the lower clamping arm 520. Racks are provided on the surfaces of the upper clamping arm 519 and the lower clamping arm 520, and a gear 521 is positioned between the racks. A working motor 522 is connected to the bag opening arm, and the shaft extension of the working motor 522 is directly connected to the gear 521. The bag opening is then opened by a suction cup. Then, electric slide 1 511 and electric slide 2 512 control the upper clamp arm 519 and lower clamp arm 520 of the bag opening arm 518 to extend into the opening of the packaging bag, and the clamps open to tighten the bag opening. The bag opening mechanism 5 controls the packaging bag to move towards the bag fitting mechanism 6. In this embodiment, the lower clamp arm 519 is provided with a through air inlet 523, and the air inlet 523 is connected to an air pipe. During the bag opening process, air is blown into the packaging bag to make the packaging bag fully expand, so as to facilitate the next step of bag fitting.

[0045] The bagging mechanism 6 includes a lifting device and a bagging device. The lifting device contains a lifting bracket, which moves up and down within the gap of the second flexible conveyor line 22. A lifting cylinder 611 is installed within the lifting device and mounted below the second flexible conveyor line 22 via a lifting cylinder bracket. The piston end of the lifting cylinder 611 is connected to the bottom of the lifting bracket 612. Guide posts 613 are provided on both sides of the lifting cylinder 612. The upper end of each guide post 613 is connected to the lifting bracket 612, and the lower end of each guide post 613 passes through the lifting cylinder bracket. To reduce friction during the movement of the guide posts 613, a linear bearing is provided between the guide posts 613 and the lifting cylinder bracket. A lead screw is installed inside the lifting bracket 612. The second slide table 614 has a working motor 615 connected to one side. The working lead screw 2 is connected to the shaft extension of the working motor 6. The working lead screw 2 is composed of a lead screw 3 616 with positive lead and a lead screw 4 617 with negative lead. The lead screw 3 616 and lead screw 4 617 are connected to each other through a second coupling. The lead screw sliders on the lead screw 3 616 and lead screw 4 617 are connected to lifting arms 618. Lifting columns 619 are evenly distributed on the lifting arms 618. The lifting columns 619 extend from the gap of the second flexible conveyor line 22 and lift the PCB board on the second flexible conveyor line 22. The second slide table 614 can control the relative movement of the lifting arms 618 and adjust the distance between the lifting columns 619 so that it can lift PCB boards of different models.

[0046] The bagging device includes a clamping bracket, the clamping distance between the clamping brackets is adjustable, and the clamping bracket moves back and forth above the lifting bracket to perform bagging. Electric slide table three 620 and electric slide table four 621 are installed above the bagging device. Electric slide table three 620 is horizontally mounted on the frame 1, and a slide bracket two 622 is connected to the slider of electric slide table three 620. Electric slide table four 621 is vertically mounted on slide bracket two 622. A lead screw slide table three 623 is connected to the slider of electric slide table four 621 through a triangular frame two. A working motor seven 624 is connected to one side of lead screw slide table three 623, and a shaft extension of working motor seven 624 is connected to... The working lead screw three is composed of a lead screw five with a positive lead and a lead screw six with a negative lead, which are connected to each other by a third coupling. The clamping bracket 625 is connected to the lead screw slider of lead screw five and lead screw six. The end of the clamping bracket 625 is connected to a flange for clamping support. During operation, the clamping bracket 625 clamps the PCB board from the lifting device. The lifting device descends, and then the clamping bracket 625 sends the PCB board into the packaging bag. At the same time, the bag opening mechanism 5 also moves towards the clamping bracket 625. Then the lifting device rises to lift the PCB board so that the clamping bracket 625 can be separated from the packaging bag and pulled out.

[0047] The bag-opening mechanism 7 includes a bag-stretching arm that can open left and right to tighten the packaging bag and smooth the bag opening. The mechanism includes a linear slide module 711 mounted on a bottom support 712. A bag-stretching support plate 713 is mounted on the slide of the linear slide module 711. A motor 714 is mounted on one side of the support plate 713. A drive wheel 715 and a driven wheel 716 are mounted at both ends of the support plate 713. The shaft of the motor 714 is directly connected to the drive wheel 715. A synchronous belt 717 is wound between the drive wheel 715 and the driven wheel 716. Two bag-stretching arms 718 are connected to the synchronous belt 717 via clamps. The surface of the clamps is connected to the support plate 713 via a fifth guide rail pair 719. In this embodiment, the bag-stretching arms 718 are L-shaped. The bag opening mechanism 718 is shaped and opens outwards. The second flexible conveyor line 22 is connected to the side of the bag opening mechanism adjustment bracket plate 720. The bag opening mechanism adjustment bracket plate 720 is equipped with a working motor 9 721. The shaft extension of the working motor 9 721 is connected to a lead screw 3 722. The lead screw 3 722 is equipped with a third lead screw slider 723. The surface of the third lead screw slider 723 is connected to the bottom support 712 of the bag stretcher. The two sides of the bottom support 712 of the bag stretcher are connected to the bag opening mechanism adjustment bracket plate 720 through the sixth guide rail pair. Under the drive of the working motor 9 721, the height position of the bag stretcher arm 718 is adjusted. After the bag is finished, before the bag opening mechanism 5 is about to retract, the linear slide module 2 711 controls the bag stretcher arm 718 to enter the bag opening of the packaging bag. Then the bag opening mechanism 5 retracts, the working motor 8 drives the bag stretcher arm 718 to open, and the bag opening is opened. Before vacuum packaging, the bag opening is tidied up to make the bag opening neat.

[0048] The pressing mechanism 8 includes a pressing strip located on the side of the third flexible conveyor line 23. The pressing strip can move left and right to press down the opening of the packaging bag and convey it along the conveyor line. The pressing mechanism 8 includes an electric slide table 811. The back sides of the electric slide table 811 are connected to the side of the third flexible conveyor line via a sixth guide rail pair 812. A pressing strip bracket 813 is mounted on the slider of the electric slide table 811, extending towards the surface of the third flexible conveyor line 23. The pressing strip 814 is connected to the pressing strip bracket. At end 813, a lifting cylinder 815 is installed on the side of the third flexible conveyor line 23. The lifting cylinder 815 is located below the electric slide table 811. The piston end of the lifting cylinder 815 is connected to the electric slide table 811. During operation, the lifting cylinder 815 lifts the electric slide table 811, and then the electric slide table 811 drives the pressure bar 814 to move towards the side of the third flexible conveyor line 22. The lifting cylinder 815 descends to press down the sorted packaging bag to prevent the bag opening from deforming, and then continues to be conveyed to the vacuum packaging line.

[0049] When the equipment is working, the conveyor line transports PCB boards. A humidity card dispenser (not shown in the figure) is installed at the entrance of the equipment to place the humidity card on the surface of the PCB board. Then, on the first flexible conveyor line 21, the shaping mechanism 3 adjusts the position of the PCB board to align it and transports it forward in a straight line. Then, the bag picking mechanism 4 picks up the packaging bag from the tray, while the bag opening mechanism 5 opens the bag opening. The bag fitting mechanism 6 hugs the PCB board. At the same time, the desiccant dispenser 9 on the equipment dispenses desiccant onto the PCB board. The bag opening mechanism 5 and the bag fitting mechanism 6 move towards each other to fit the PCB board into the packaging bag. Finally, the bag opening straightening mechanism 7 straightens the bag opening, and the bag pressing mechanism 8 presses down the bag opening to prevent the bag opening from deforming.

[0050] This invention is not limited to the embodiments described. Those skilled in the art can make some modifications or changes without departing from the spirit and scope of this invention. Therefore, the scope of protection of this invention is defined by the claims.

Claims

1. A bag opening and bagging machine, characterized in that: The system includes a frame, within which a conveyor line is installed. A shaping mechanism is located at the front end of the conveyor line, while a bag-picking mechanism, a bag-opening mechanism, a bag-packing mechanism, and a bag-mouth sorting mechanism are located at the rear of the conveyor line. A belt-pressing mechanism is located at the end of the conveyor line. The conveyor line is flexible and has internal gaps. The shaping mechanism includes a material support frame that moves up and down within the gaps of the conveyor line. Push plates and positioning plates are located on both sides of the material support frame. The bag-picking mechanism includes a tray device containing packaging bags. A suction cup is installed at the front end of the tray device to pick up the packaging bags. The bag-opening mechanism includes a bag-opening mechanism. The bag opening arm faces the packaging bag and is equipped with jaws that can open to open the packaging bag. The bag fitting mechanism includes a lifting device and a bag fitting device. The lifting device is equipped with a lifting bracket that moves up and down within the gap of the conveyor line. The bag fitting device includes a clamping bracket with an adjustable clamping distance. The clamping bracket moves back and forth above the lifting bracket to perform bag fitting. The bag opening mechanism includes a stretching arm that can open left and right to tighten the packaging bag. The pressing mechanism includes a pressing strip located on the side of the conveyor line that can move left and right to press the opening of the packaging bag and convey it along the conveyor line. The pallet device includes a working area and a bag storage area, each containing a pallet on which packaging bags are placed. A working support is located within the working area of ​​the pallet device, situated to the side of the conveyor line. A working motor is mounted above the working support, and a lead screw is connected to the shaft extension of the working motor. A first lead screw slider is mounted on the lead screw, and a working back plate is mounted on its surface. The working back plate is connected to the working support via first guide rails on both sides. Support arms are connected to both sides of the working back plate, and first support columns connect between the support arms. The tray in the storage area is placed on the first support column. A rodless cylinder 2 is installed on the outer side of the support arm. A cylinder support plate is installed on the slider of the rodless cylinder 2. A second guide rail pair is provided between the cylinder support plate and the support arm. A locking cylinder 1 is installed on one side of the surface of the cylinder support plate. A storage bracket is provided in the bag storage area of ​​the tray device. The storage bracket is located on the side of the working area. Multiple layers of second support columns are arranged between the storage brackets. The tray in the bag storage area is placed on the second support column. A locking cylinder 2 is installed on the side of each layer of the storage bracket. The tray has corresponding locking cylinders 1 and 2. A keyhole plate is provided. A second working motor is installed at the bottom of the working back plate. A second lead screw is connected to the shaft extension of the second working motor. A second lead screw slider is provided on the second lead screw slider. A lifting back plate is installed on the surface of the second lead screw slider. The two sides of the lifting back plate are connected to the working back plate through a third guide rail pair. Lifting arms are connected to the two sides of the lifting back plate. Lifting support columns are provided on the lifting arms. The lifting support columns are located below the tray in the working area. A linear slide module is provided above the working area of ​​the tray device. A bag-retrieving bracket plate is installed on the slider of the linear slide module. A lifting mechanism is installed in the middle of the bag-retrieving bracket plate. The movable end of the elevator passes through the bag-collecting bracket plate and is connected to an upper suction cup bracket. A working motor is installed on one side of the upper suction cup bracket. A drive wheel and a driven wheel are respectively installed at both ends inside the upper suction cup bracket. The shaft extension of the working motor is directly connected to the drive wheel. A synchronous belt is wound between the drive wheel and the driven wheel. Two suction cup mounting arms are connected to the front and rear sides of the synchronous belt through a clamping plate. The surface of the clamping plate is connected to the suction cup bracket through a fourth guide rail pair. An upper suction cup is installed at the end of the suction cup mounting arm. A lower suction cup is set below the upper suction cup. The lower suction cup is connected to the side of the conveyor line through a lower suction cup bracket.

2. The bag opening and bagging machine according to claim 1, characterized in that: The shaping mechanism is equipped with a material-supporting cylinder, which is installed below the conveyor line via a material-supporting cylinder bracket. The piston end of the material-supporting cylinder is connected to the bottom of the material-supporting frame. Guide columns are provided on both sides of the material-supporting cylinder. The upper end of the guide column is connected to the material-supporting frame, and the lower end of the guide column passes through the material-supporting cylinder bracket. Roller brackets are evenly distributed on the surface of the material-supporting frame, and rollers are installed on top of the roller brackets. A gantry bracket is installed on the conveyor line. A positioning plate cylinder is installed on the inner side of the gantry bracket. The piston end of the positioning plate cylinder is connected to the positioning plate. A rodless cylinder is installed above the gantry bracket, and a pusher plate is installed on the slider of the rodless cylinder.

3. The bag opening and bagging machine according to claim 1, characterized in that: Above the bag-opening mechanism are two electric slides: Electric Slide 1 and Electric Slide 2. Electric Slide 1 is horizontally mounted on the frame, and a slide bracket 1 is connected to the slider of Electric Slide 1. Electric Slide 2 is vertically mounted on the slide bracket 1, and a lead screw slide 1 is connected to the slider of Electric Slide 2 via a triangular frame 1. A working motor 4 is connected to one side of the lead screw slide 1, and a working lead screw 1 is connected to the shaft extension of the working motor 4. The working lead screw 1 is composed of a lead screw 1 with a positive lead and a lead screw 2 with a negative lead. Lead screw one and lead screw two are connected to each other via a first coupling. The bag opening arm is connected to the lead screw sliders of lead screw one and lead screw two. Two linear guide rails are installed on the bag opening arm. An upper clamping arm is connected to the slider of one linear guide rail, and a lower clamping arm is connected to the slider of the other linear guide rail. A jaw is formed between the lower parts of the upper clamping arm and the lower clamping arm. A rack is provided on the surface of the upper clamping arm and the lower clamping arm, and a gear is provided between the racks. A working motor five is connected to the bag opening arm, and the shaft extension of the working motor five is directly connected to the gear.

4. A bag opening and bagging machine according to claim 3, characterized in that: The lower clamp arm has a through air inlet.

5. A bag opening and bagging machine according to claim 1, characterized in that: The lifting device is equipped with a lifting cylinder, which is mounted below the conveyor line via a lifting cylinder bracket. The piston end of the lifting cylinder is connected to the bottom of the lifting bracket. Guide columns 2 are provided on both sides of the lifting cylinder. The upper end of the guide columns 2 is connected to the lifting bracket, and the lower end of the guide columns 2 passes through the lifting cylinder bracket. A lead screw slide 2 is provided inside the lifting bracket. A working motor 6 is connected to one side of the lead screw slide 2. A working lead screw 2 is connected to the shaft extension of the working motor 6. The working lead screw 2 is composed of a lead screw 3 with a positive lead and a lead screw 4 with a negative lead. The lead screw 3 and lead screw 4 are connected to each other via a second coupling. Lifting arms are connected to the lead screw slides on the lead screw 3 and lead screw 4. Lifting columns are evenly distributed on the lifting arms. The lifting column extends from the gap in the conveyor line. Above the bagging device are two electric slides: electric slide three and electric slide four. Electric slide three is horizontally mounted on the frame. A slide bracket two is connected to the slide block of electric slide three. Electric slide four is vertically mounted on the slide bracket two. A lead screw slide three is connected to the slide block of electric slide four via a triangular frame two. A working motor seven is connected to one side of the lead screw slide three. A working lead screw three is connected to the shaft extension of the working motor seven. The working lead screw three is formed by connecting a lead screw five with a positive lead and a lead screw six with a negative lead. Lead screw five and lead screw six are connected to each other via a third coupling. The clamping bracket is connected to the lead screw slides of lead screw five and lead screw six. A clamping support flange is connected to the end of the clamping bracket.

6. A bag opening and bagging machine according to claim 1, characterized in that: The bag-feeding mechanism includes a linear slide module 2, with a bag-stretching bottom support connected to its bottom. A bag-stretching support plate is mounted on the slider of the linear slide module 2. A working motor 8 is mounted on one side of the bag-stretching support plate. A driving wheel 2 and a driven wheel 2 are mounted at both ends of the bag-stretching support plate, respectively. The shaft extension of the working motor 8 is directly connected to the driving wheel 2. A synchronous belt 2 is wound between the driving wheel 2 and the driven wheel 2. Two bag-stretching arms are connected to the front and rear sides of the synchronous belt 2 via clamping plates 2. The surface of the clamping plates 2 is connected to the bag-stretching support plate via a fifth guide rail pair. A bag-feeding mechanism adjustment support plate is connected to the side of the conveyor line. A working motor 9 is mounted on the bag-feeding mechanism adjustment support plate. A lead screw 3 is connected to the shaft extension of the working motor 9. A third lead screw slider is mounted on the lead screw 3. The surface of the third lead screw slider is connected to the bag-stretching bottom support. The two sides of the bag-stretching bottom support are connected to the bag-feeding mechanism adjustment support plate via a sixth guide rail pair.

7. A bag opening and bagging machine according to claim 1, characterized in that: The pressing mechanism is equipped with an electric slide table five. The back sides of the electric slide table five are connected to the side of the conveyor line via a sixth guide rail pair. A pressing strip bracket is installed on the slider of the electric slide table five. The pressing strip bracket extends towards the surface of the conveyor line. The pressing strip is connected to the end of the pressing strip bracket. A lifting cylinder is installed on the side of the conveyor line. The lifting cylinder is located below the electric slide table five. The piston end of the lifting cylinder is connected to the electric slide table five.

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