Abnormal bag removal, butt joint device and continuous bag production equipment

Abstract

The present application relates to the field of bag packaging material continuous production equipment, and particularly relates to an abnormal bag removal and butt joint device and a continuous bag production equipment. The abnormal bag removal and butt joint device comprises a rack, a continuous bag moving path is arranged on the rack, a compensation centering device, a bag cutting device and an adhesive tape device are arranged on the continuous bag moving path, the compensation centering device comprises upstream and downstream clamping devices, the bag cutting device and the adhesive tape device are located between the upstream and downstream clamping devices, the bag cutting device comprises a tool holder and a tool for cutting off abnormal bags, at least one of the upstream and downstream clamping devices can reciprocate along the continuous bag moving path to align the cut-off continuous bags, and the adhesive tape device comprises a tape clamping jaw for clamping and pasting the adhesive tape at the aligned continuous bags. The present application solves the problem of low abnormal bag removal efficiency in the existing continuous bag production process.

Description

Technical Field

[0001] This invention relates to the field of continuous production equipment for bagged packaging materials, and in particular to an abnormal bag rejection and docking device and a continuous bag production equipment. Background Technology

[0002] Bags are widely used in the food, condiment, and pharmaceutical industries. For example, common everyday items like instant noodle sauces, hot pot bases, and tea bags are mostly packaged in bags. To improve production efficiency, bag production employs a continuous production process, meaning the filled and sealed bags are produced in a continuous strip, known as continuous bagging. These continuous bags are then cut and placed into appropriate outer packaging bags using automated equipment.

[0003] Due to limitations in the production process, continuous bag packaging can experience material jamming during production. This occurs when the packaged material gets stuck at the junction of two bags, sometimes leading to poor sealing and leakage. Leaked material may spoil or even mold, compromising food safety. Therefore, it is necessary to remove defective bags during production.

[0004] To address the need for rejecting defective packets, the applicant's Chinese utility model patent (CN214320951U, authorized on October 1, 2021) provides a vision-based device for detecting and rejecting condiment packet inclusions. This device includes a rotary encoder located at the outlet of a filling machine, with an image acquisition device above it. The outlet of the filling machine is connected to a sorting device, which has outlets for qualified and unqualified products, and an air nozzle opposite the unqualified product outlet. A solenoid valve for controlling the air nozzle is also located on one side of the sorting device. When using this device, the rotary encoder can be used to calculate the length. During operation, a high-resolution camera is used to photograph the sealing area of ​​the condiment packet based on the length. Image processing algorithms are used to obtain a surface image of the sealing area and identify defects. Unqualified products are then rejected using a blowing method, thus achieving the purpose of rejecting defective packets.

[0005] While the aforementioned device can be used to remove defective bags during bag production, it cannot reconnect the removed bags, thus limiting its application to continuous bag production. In existing technology, the removal of defective bags during continuous bag production primarily relies on manual removal. After removal, the cut bags are manually reconnected using adhesive tape, resulting in low efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide an abnormal bag rejection and docking device to solve the problem of low efficiency in the rejection of abnormal bags in the existing continuous bag production process.

[0007] Meanwhile, the present invention also aims to provide a continuous bag production equipment using the above-mentioned abnormal bag rejection and docking device to solve the above-mentioned problems.

[0008] To solve the above problems, the abnormal bag rejection and docking device of the present invention adopts the following technical solution: the abnormal bag rejection and docking device includes a frame, on which a continuous bag moving path is provided. A compensation centering device, a bag cutting device, and an adhesive tape device are provided on the continuous bag moving path. The compensation centering device includes an upstream clamping device and a downstream clamping device. The bag cutting device and the adhesive tape device are located between the upstream clamping device and the downstream clamping device. The bag cutting device includes a knife holder and a knife for cutting off abnormal bags. At least one of the upstream clamping device and the downstream clamping device can reciprocate along the continuous bag moving path to align the bags on both sides of the break formed by the cut continuous bags. The adhesive tape device includes adhesive tape grippers for clamping and sticking adhesive tape to the aligned continuous bags.

[0009] Beneficial Effects: The abnormal bag rejection and docking device of the present invention is a pioneering invention. Specifically, the device has a continuous bag moving path on its frame, and an upstream clamping device, a downstream clamping device, a bag cutting device, and an adhesive tape device are arranged on the continuous bag moving path. The bag cutting device and the adhesive tape device are located between the upstream clamping device and the downstream clamping device. At least one of the upstream clamping device and the downstream clamping device can reciprocate along the continuous bag moving path to align the cut continuous bags. Therefore, in use, the upstream and downstream clamping devices can clamp both ends of the abnormal bag (band) respectively, the bag cutting device can cut off and reject the abnormal bag, and then the upstream and downstream clamping devices can be brought together to align the cut continuous bags. After alignment, the cut ends of the continuous bags can be glued together by the adhesive tape device. This device can realize the online rejection of abnormal bags during the continuous bag production process without affecting the continuous bag production, thereby solving the problem of low efficiency in rejecting abnormal bags during the continuous bag production process.

[0010] Furthermore, the upstream clamping device includes an upper roller frame and an upper clamping roller rotatably mounted on the upper roller frame. The upper clamping roller is equipped with an upper clamping roller tensioning drive device for clamping and releasing the bag. The upper clamping roller tensioning drive device allows for flexible control of the clamping and releasing states of the upstream clamping device as needed, facilitating flexible position movement.

[0011] Furthermore, the upper clamping roller is connected to an upper clamping roller rotation drive device. By setting the upstream clamping device in the form of a clamping roller, it can not only clamp but also transport bags, thereby allowing for more flexible positioning of abnormal bags when they are cut.

[0012] Furthermore, the upstream clamping device and / or downstream clamping device are reciprocally mounted on the frame via a screw and nut drive mechanism that allows for movement along the continuous bag-packing path. The upstream clamping device and / or downstream clamping device, mounted on the frame via a screw and nut mechanism, offer advantages such as simple structure, fast control response, and precise control.

[0013] Furthermore, the downstream clamping device includes a lower roller frame and a lower clamping roller rotatably mounted on the lower roller frame, and the lower clamping roller is driven by a lower clamping roller rotation drive device. The purpose of setting the downstream clamping device as a clamping roller structure is similar to that of the upstream clamping device, so that in addition to clamping, it can also have the function of conveying bags, thereby allowing for more flexible positioning of abnormal bags when they are cut.

[0014] Furthermore, the lower clamping roller is equipped with a lower clamping roller tensioning drive device for clamping and releasing the bag. This lower clamping roller tensioning drive device allows for flexible control of the clamping and releasing states of the downstream clamping device as needed, facilitating flexible position adjustments.

[0015] Furthermore, the blade is a pair of scissors, and the scissors are equipped with a shearing drive device. Scissors equipped with a shearing drive device have a simple structure and are easy to arrange.

[0016] Furthermore, the cutting tool is connected to the tool holder via a tool feed device, thus having a working position for the cutting of the bag and an idle position for avoiding the bag. The configuration of the tool feed device allows for more flexible tool arrangement, facilitating its placement in a position that does not interfere with the operation of other mechanisms.

[0017] Furthermore, the end of the gripper is provided with a negative pressure suction plate, and the negative pressure suction plate has suction holes for adsorbing the back of the tape. The negative pressure suction plate type tape pickup device is not only simple in structure, but also low in cost and highly reliable.

[0018] Furthermore, the tape application device is equipped with a tape supply device, which includes a tape roll holder, a tape head pulling device, a tape support, and a tape cutting device. The tape head pulling device includes a movable frame and tape head grippers mounted on the movable frame, and the tape cutting device includes a tape knife. The combination of the tape roll holder, tape head pulling device, tape support, and tape cutting device allows the length of tape cut each time to be controlled by the travel of the movable frame.

[0019] Furthermore, the tape holder includes a support plate for holding the adhesive side of the tape. This support plate is a lifting support plate, having a high position for holding the tape and a low position to avoid the tape. The support plate can be used to temporarily hold the tape and position it so that the tape pickup device can easily pick it up.

[0020] Furthermore, the tape cutting device is equipped with an upper clamping plate and a lower clamping plate at the tape cutter. Both the upper and lower clamping plates are lifting clamping plates, and a temporary tape head holding device is provided on the side of the upper and lower clamping plates near the tape roll holder. The lifting clamping plates serve to fix the tape when the tape cutter cuts it, and to avoid interference with the tape head grippers when they grip the tape. The temporary tape head holding device temporarily fixes the tape head after the upper and lower clamping plates have left the tape. Because it is located on the side of the upper and lower pressure plates near the tape roll holder, it will not interfere with the tape head grippers.

[0021] Furthermore, the tray is a horizontal tray, and the tape gripper is a flip-type gripper, having a horizontal tape-sticking position and a vertical tape-picking position for removing tape from the tray. Setting the tray as a horizontal tray simulates the structure of a cutting board, facilitating its arrangement.

[0022] Furthermore, an abnormal bag receiving device is provided on one side of the continuous bag movement path. The abnormal bag receiving device includes a receiving compartment with a receiving position located on the continuous bag movement path and a standby position avoiding the continuous bag movement path. The abnormal bag receiving device can be used to collect rejected abnormal bags for centralized processing.

[0023] Furthermore, the device also includes a vision device for detecting abnormal bags, which triggers the upstream clamping device, downstream clamping device, bag cutting device, and adhesive tape device when an abnormal bag is detected. The vision device is linked with the upstream clamping device, downstream clamping device, bag cutting device, and adhesive tape device to automate the operation of the device of the present invention.

[0024] The continuous bag production equipment of the present invention adopts the following technical solution:

[0025] A continuous bag production line includes a bag filling device, followed by an abnormal bag rejection and docking device. The abnormal bag rejection and docking device includes a frame with a continuous bag movement path. A compensation centering device, a bag cutting device, and an adhesive tape application device are provided along the continuous bag movement path. The compensation centering device includes an upstream clamping device and a downstream clamping device. The bag cutting device and the adhesive tape application device are located between the upstream and downstream clamping devices. The bag cutting device includes a cutter holder and a cutter for cutting off abnormal bags. At least one of the upstream and downstream clamping devices can reciprocate along the continuous bag movement path to align the bags at both sides of the cut-off point formed by the continuous bags. The adhesive tape application device includes adhesive tape grippers for clamping and attaching adhesive tape to the aligned continuous bags.

[0026] Beneficial Effects: The continuous bag production equipment of the present invention is a pioneering invention. Specifically, the abnormal bag rejection and docking device in this equipment is equipped with a continuous bag movement path on its frame. An upstream clamping device, a downstream clamping device, a bag cutting device, and an adhesive tape device are arranged on the continuous bag movement path. The bag cutting device and the adhesive tape device are located between the upstream and downstream clamping devices. At least one of the upstream and downstream clamping devices can reciprocate along the continuous bag movement path to align the cut continuous bags. Therefore, in use, the upstream and downstream clamping devices can clamp both ends of the abnormal bag (or bag), the bag cutting device can cut and reject the abnormal bag, and then the upstream and downstream clamping devices can be brought closer together to align the cut continuous bags. After alignment, the adhesive tape device can be used to glue the broken ends of the continuous bags. This device can achieve online rejection of abnormal bags during continuous bag production without affecting the production of continuous bags, thus solving the problem of low efficiency in rejecting abnormal bags during continuous bag production.

[0027] Furthermore, the upstream clamping device includes an upper roller frame and an upper clamping roller rotatably mounted on the upper roller frame. The upper clamping roller is equipped with an upper clamping roller tensioning drive device for clamping and releasing the bag. The configuration of the upper clamping roller tensioning drive device allows for flexible control of the clamping and releasing states of the upstream clamping device as needed, facilitating flexible position movement.

[0028] Furthermore, the upper clamping roller is connected to an upper clamping roller rotation drive device. By setting the upstream clamping device in the form of a clamping roller, it can not only clamp but also transport bags, thereby allowing for more flexible positioning of abnormal bags when they are cut.

[0029] Furthermore, the upstream clamping device and / or downstream clamping device are reciprocally mounted on the frame via a screw and nut drive mechanism that allows for movement along the continuous bag-packing path. The upstream clamping device and / or downstream clamping device, mounted on the frame via a screw and nut mechanism, offer advantages such as simple structure, fast control response, and precise control.

[0030] Furthermore, the downstream clamping device includes a lower roller frame and a lower clamping roller rotatably mounted on the lower roller frame, and the lower clamping roller is driven by a lower clamping roller rotation drive device. The purpose of setting the downstream clamping device as a clamping roller structure is similar to that of the upstream clamping device, so that in addition to clamping, it can also have the function of conveying bags, thereby allowing for more flexible positioning of abnormal bags when they are cut.

[0031] Furthermore, the lower clamping roller is equipped with a lower clamping roller tensioning drive device for clamping and releasing the bag. This lower clamping roller tensioning drive device allows for flexible control of the clamping and releasing states of the downstream clamping device as needed, facilitating flexible position adjustments.

[0032] Furthermore, the blade is a pair of scissors, and the scissors are equipped with a shearing drive device. Scissors equipped with a shearing drive device have a simple structure and are easy to arrange.

[0033] Furthermore, the cutting tool is connected to the tool holder via a tool feed device, thus having a working position for the cutting of the bag and an idle position for avoiding the bag. The configuration of the tool feed device allows for more flexible tool arrangement, facilitating its placement in a position that does not interfere with the operation of other mechanisms.

[0034] Furthermore, the end of the gripper is provided with a negative pressure suction plate, and the negative pressure suction plate has suction holes for adsorbing the back of the tape. The negative pressure suction plate type tape pickup device is not only simple in structure, but also low in cost and highly reliable.

[0035] Furthermore, the tape application device is equipped with a tape supply device, which includes a tape roll holder, a tape head pulling device, a tape support, and a tape cutting device. The tape head pulling device includes a movable frame and tape head grippers mounted on the movable frame, and the tape cutting device includes a tape knife. The combination of the tape roll holder, tape head pulling device, tape support, and tape cutting device allows the length of tape cut each time to be controlled by the travel of the movable frame.

[0036] Furthermore, the tape holder includes a support plate for holding the adhesive side of the tape. This support plate is a lifting support plate, having a high position for holding the tape and a low position to avoid the tape. The support plate can be used to temporarily hold the tape and position it so that the tape pickup device can easily pick it up.

[0037] Furthermore, the tape cutting device is equipped with an upper clamping plate and a lower clamping plate at the tape cutter. Both the upper and lower clamping plates are lifting clamping plates, and a temporary tape head holding device is provided on the side of the upper and lower clamping plates near the tape roll holder. The lifting clamping plates serve to fix the tape when the tape cutter cuts it, and to avoid interference with the tape head grippers when they grip the tape. The temporary tape head holding device temporarily fixes the tape head after the upper and lower clamping plates have left the tape. Because it is located on the side of the upper and lower pressure plates near the tape roll holder, it will not interfere with the tape head grippers.

[0038] Furthermore, the tray is a horizontal tray, and the tape gripper is a flip-type gripper, having a horizontal tape-sticking position and a vertical tape-picking position for removing tape from the tray. Setting the tray as a horizontal tray simulates the structure of a cutting board, facilitating its arrangement.

[0039] Furthermore, an abnormal bag receiving device is provided on one side of the continuous bag movement path. The abnormal bag receiving device includes a receiving compartment with a receiving position located on the continuous bag movement path and a standby position avoiding the continuous bag movement path. The abnormal bag receiving device can be used to collect rejected abnormal bags for centralized processing.

[0040] Furthermore, the device also includes a vision device for detecting abnormal bags, which triggers the upstream clamping device, downstream clamping device, bag cutting device, and adhesive tape device when an abnormal bag is detected. The vision device is linked with the upstream clamping device, downstream clamping device, bag cutting device, and adhesive tape device to automate the operation of the device of the present invention. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of one embodiment of the abnormal bag rejection and docking device of the present invention;

[0042] Figure 2 yes Figure 1 A schematic diagram of the guiding device in the middle;

[0043] Figure 3 yes Figure 1 A schematic diagram of the clamping detection device in the middle;

[0044] Figure 4 yes Figure 1 A schematic diagram of the bag cutting device in the diagram;

[0045] Figure 5 yes Figure 1 A schematic diagram of the compensation and alignment device in the diagram;

[0046] Figure 6 yes Figure 1 A schematic diagram of the adhesive tape device in the diagram;

[0047] Figure 7 yes Figure 1 A schematic diagram of the tape supply device in the diagram;

[0048] Figure 8 This is a schematic diagram of another type of tape supply device;

[0049] Figure 9 yes Figure 1 A schematic diagram of the abnormal bag receiving device in the diagram.

[0050] In the diagram: 1001, continuous bagging; 101, guiding device; 102, clamping detection device; 103, bag cutting device; 104, compensation centering device; 105, adhesive tape device; 106, adhesive tape supply device; 107, abnormal bag receiving device;

[0051] 201. Guide bracket; 202. Guide wheel; 203. Guide wheel fixing shaft;

[0052] 301. Light source; 302. Lens; 303. Camera; 304. Camera light source bracket;

[0053] 401. Pneumatic shear connecting plate; 402. Pneumatic shears; 403. Shear push cylinder; 404. Cylinder adapter plate; 405. Three-axis cylinder;

[0054] 5001. Upstream clamping device; 5002. Downstream clamping device; 501. Compensation mechanism base plate; 502. Centering motor fixing plate; 503. Centering adjustment motor; 504. Lead screw and nut; 505. Lead screw and nut fixing plate; 506. Clamping conveyor module bracket; 507. Gear; 508. Clamping conveyor motor; 509. Pressure plate; 510. Intermediate shaft; 511. First bearing; 512. Second bearing; 513. Main... 514. Moving shaft; 515. Clamping cylinder; 516. Clamping cylinder fixing bracket; 517. Bag clamping linear guide rail; 518. Driven shaft; 519. Driven shaft fixing bracket; 520. Limiting plate; 521. Floating joint; 522. Clamping cylinder fixing nut; 523. Auxiliary support frame; 524. Third bearing; 525. First photoelectric sensor; 526. Centering linear guide rail; 527. Second photoelectric sensor; 528. Sensor signal board;

[0055] 601. Adhesive tape application device base; 602. Synchronous pulley; 603. Synchronous belt; 604. Tilting shaft; 605. First sensor; 606. Upper tilting signal plate; 607. Adhesive tape push motor; 608. Second sensor; 609. Tilting base plate; 610. Push motor mounting bracket; 611. Adhesive tape push mechanism signal plate; 612. Belt connecting plate; 613. Gripper connecting plate; 614. Adhesive tape gripper; 615. Adhesive tape linear guide; 616. Adhesive tape adsorption plate; 617. Belt idler pulley; 618. Belt; 619. Belt idler pulley axle; 620. Belt idler pulley mounting plate; 621. Lower tilting signal plate; 622. Sensor fixing plate; 623. Third sensor; 624. Fourth sensor; 625. Tilting pulley;

[0056] 701. Substrate; 702. Tape anti-fall bar; 703. Tape guide wheel shaft; 704. Tape guide wheel; 705. Tape limit block; 706. Tape; 707. Tape roll; 708. Photoelectric switch; 709. Tape placement wheel shaft; 710. Adjustment knob; 711. Tape placement wheel; 712. Spring; 713. Tensioning block; 714. Cutter fixing block; 715. Cutter; 716. Cutting cylinder; 717. Cutter pressure block; 718. Tape pre-pressure plate; 719. Pre-pressure plate linear guide; 720. Slider connecting plate; 721. Lower pre-pressure block; 722. Tape length idler wheel fixing plate; 723. Third photoelectric sensor 724. First tape adsorption plate; 725. Tape traction belt; 726. Second tape adsorption plate; 727. Tape head gripper; 728. Gripper fixing plate; 729. Tape pulling signal plate; 730. Tape pulling motor; 731. Tape pulling motor fixing plate; 732. Tape pulling pulley; 733. Fourth photoelectric sensor; 734. Tape pulling linear guide; 735. Moving frame; 736. Second tape lifting cylinder; 737. First tape lifting cylinder; 738. Tape length idler wheel; 739. Tape length idler wheel shaft; 740. Lower pre-compression cylinder; 741. Tape cutting base; 742. Upper pre-compression cylinder;

[0057] 801. Rejection chute; 802. Sensor; 803. Receiving cylinder. Detailed Implementation

[0058] During the continuous bag production process 1001, some bags may experience material jamming or leakage. Once this occurs, these defective bags need to be rejected to meet food safety and other relevant requirements. The defective bag rejection and docking device of this invention is used to reject defective bags during the continuous bag production process 1001.

[0059] like Figure 1As shown, the abnormal bag rejection and docking device of the present invention mainly includes a guiding device 101, a clamping detection device 102, a bag cutting device 103, a compensation centering device 104, an adhesive tape device 105, an adhesive tape supply device 106, and an abnormal bag receiving device 107. The guiding device 101 guides the filled and sealed continuous bags 1001 so that they pass through the continuous bag movement path provided on the device of the present invention. The clamping detection device 102 detects the clamping situation of the continuous bags to promptly identify clamped bags. The bag cutting device 103 cuts off the clamped bags to reject them. After the clamped bags are cut off, a break will appear in the originally continuous continuous bags 1001. The compensation centering device 104 aligns the upstream and downstream segments of the continuous bags 1001 at the break (aligning the bags on both sides of the break). The adhesive tape device 105 is used to bond the aligned continuous bags 1001 from the aforementioned break point, and the adhesive tape supply device 106 is used to supply the adhesive tape device 105 with the adhesive tape required for bonding the continuous bags. The defective bag receiving device 107 is used to receive the cut continuous bags for centralized processing.

[0060] The structure of the guide device 101 is as follows Figure 2 As shown, the system includes a guide bracket 201, a guide wheel 202, and a guide wheel fixing shaft 203. The guide bracket 201 is T-shaped and includes a vertical column and a crossbar on the column. The guide wheel fixing shaft 203 and the guide wheel 202 are respectively installed at both ends of the crossbar. The hole on the crossbar for cooperating with the guide wheel fixing shaft 203 is an elongated hole, which allows the position of the guide wheel 202 on the crossbar to be adjusted as needed.

[0061] In some embodiments, the clamping detection device 102 may employ a vision device, such as in Figure 3 In the illustrated embodiment, the clamping detection device 102 includes a light source 301, a lens 302, and a camera 303. The lens 302 is mounted on the camera 303, and the light source 301 is mounted on the lens 302 to provide supplemental illumination for the operation of the camera 303. The camera 303 is equipped with a camera light source bracket 304 and is mounted entirely on the camera light source bracket 304. The lens 302 faces the path traversed by the continuous bag 1001.

[0062] The bag cutting device 103 functions to cut off consecutive bags at the corresponding position when the clamping detection device 102 detects a clamping situation. It includes a cutter holder and a cutter for cutting off abnormal bags. In some embodiments, such as... Figure 4 As shown, the cutting tool is a pair of scissors, connected to the tool holder via a tool feed device. Specifically, the scissors are equipped with a shearing drive to automatically perform shearing operations. Figure 4In the illustrated embodiment, the scissors are pneumatic scissors 402. The cutter feeding device includes a pneumatic scissor connecting plate 401, a scissor pushing cylinder 403, a cylinder adapter plate 404, and a three-axis cylinder 405. The three-axis cylinder 405 is mounted on the scissor pushing cylinder 403 via the cylinder adapter plate 404. The three-axis cylinder 405 and the scissor pushing cylinder 403 allow for adjustment of the scissors' lateral and vertical positions, providing a working position for the cutter and an idle position to avoid the bags. When in the working position, continuous bags are located in the cutting opening of the pneumatic scissors 402. When in the idle position, the pneumatic scissors 402 retract to avoid the continuous bags and other related components of the abnormal bag rejection and docking device of this invention.

[0063] The structure of the compensation centering device 104 is as follows Figure 5 As shown, it includes an upstream clamping device 5001 and a downstream clamping device 5002. Both the upstream clamping device 5001 and the downstream clamping device 5002 are mounted on a compensation mechanism base plate 501. Figure 5 In the embodiment shown, the upstream clamping device 5001 and the downstream clamping device 5002 have the same structure, so only the upstream clamping device 5001 is used as an example to describe its structure here.

[0064] In this embodiment, the upstream clamping device 5001 includes a clamping conveying module bracket 506, which is a plate-type bracket. A clamping conveying motor 508 is installed on the clamping conveying module bracket 506. The clamping conveying motor 508 is connected to the drive shaft 513 rotatably mounted on the clamping conveying module bracket 506 via a gear 507. The drive shaft 513 is rotatably engaged with the clamping conveying module bracket 506 via a second bearing 512. Specifically, the motor shaft of the clamping conveyor motor 508 is sequentially connected to the drive shaft 513 via three gears 507. One gear is mounted on the motor shaft of the clamping conveyor motor 508 and is the drive gear. Another gear is mounted on one end of the drive shaft 513 and is the driven gear. The third gear is mounted on the clamping conveyor module bracket 506 and is the intermediate gear. The intermediate gear cooperates with the clamping conveyor module bracket 506 through the intermediate shaft 510. The intermediate shaft 510 is rotatably mounted on the clamping conveyor module bracket 506 through the first bearing 511. The outer side of the intermediate gear is prevented from detaching and limited by the pressure plate 509.

[0065] The upstream clamping device 5001 also includes a driven shaft fixing frame 518 located at one end of the clamping and conveying module bracket 506 away from the compensation mechanism base plate 501. The driven shaft fixing frame 518 is a movable frame that can move in the direction of approaching and moving away from the drive shaft 513, and it cooperates with the clamping and conveying module bracket 506 through the bag clamping linear guide 516. A limiting plate 519 is provided at one end of the clamping and conveying module bracket 506 to prevent the driven shaft fixing frame 518 from disengaging from the clamping and conveying module bracket 506. A clamping cylinder 514 is provided on the side of the clamping conveying module bracket 506 away from the drive shaft 513 and the driven shaft 517. The clamping cylinder 514 is fixed to the clamping cylinder fixing frame 515 by the clamping cylinder fixing nut 521 and is installed on the clamping conveying module bracket 506 by the clamping cylinder fixing frame 515. The end of its cylinder rod is connected to the driven shaft fixing frame 518 through the floating joint 520, so as to drive the driven shaft 517 to move closer to or away from the drive shaft 513, thereby realizing the clamping and releasing of the bag.

[0066] As explained above, the clamping conveyor module bracket 506 essentially forms a roller frame, while the drive shaft 513 and driven shaft 517 respectively form the upper clamping rollers and the upper clamping rollers in a roller-to-roller structure. The clamping conveyor motor 508 acts as the rotation drive device for the upper clamping rollers, enabling the continuous transport of bags between the drive and driven shafts in a roller-to-roller manner. The clamping cylinder 514 forms the tensioning drive device that adjusts the tension of the clamping rollers.

[0067] To align the ends of the bags they clamp, both the upstream clamping device 5001 and the downstream clamping device 5002 are reciprocally mounted on the compensation mechanism base plate 501 along a continuous bag movement path (in other embodiments, only one of them may be movable). For this purpose, the compensation mechanism base plate 501 is equipped with a centering linear guide rail 525 and a centering adjustment motor 503 (both the upstream clamping device 5001 and the downstream clamping device 5002 are equipped with corresponding centering adjustment motors). The centering adjustment motor 503 is mounted on the compensation mechanism base plate 501 via a corresponding centering motor fixing plate 502. The clamping conveying module brackets of the upstream and downstream clamping devices are each movably mounted on the compensation mechanism base plate 501 by cooperating with the centering linear guide rail 525. The centering adjustment motor 503 is connected to the clamping conveying module brackets of the upstream and downstream clamping devices via corresponding lead screws and nuts 504. Accordingly, a lead screw and nut fixing plate 505 is provided on the compensation mechanism base plate 501. To increase the reliability of the lead screw nut 504, an auxiliary support frame 522 is also provided on the compensation mechanism base plate 501. The lead screw of the lead screw nut 504 and the auxiliary support frame 522 are rotatably engaged through a third bearing 523. To limit the movement of the upstream and downstream clamping devices on the compensation mechanism base plate 501, a first photoelectric sensor 524 and a second photoelectric sensor 526 are provided on the compensation mechanism base plate 501. The first photoelectric sensor 524 and the second photoelectric sensor 526 are equipped with a sensor signal transmitting plate 527. The sensor signal transmitting plate 527 is a baffle. When it blocks the light path of the photoelectric sensor, the photoelectric sensor can emit corresponding position information.

[0068] The structure of the adhesive tape device 105 is as follows: Figure 6 As shown, the device includes a base 601 for an adhesive tape device and a rotatable rotating base plate 609 mounted on the base 601. A timing pulley 602 and a timing belt 603 are mounted on the base 601. A rotating pulley 625 is mounted on the rotating base plate 609 and is fixed to the base 609, with its axle forming the rotating shaft 604 of the base 609. In use, the rotating base plate 609 can be rotated via the timing belt 603, allowing it to be in a vertical position for picking up adhesive tape and a horizontal position for applying adhesive tape. A first sensor 605 is mounted on the top of the base 601 to define the horizontal rotation position of the base 609. The first sensor 605 is equipped with an upper rotation signal plate 606. A fourth sensor 624 is mounted on one side of the base 601 to define the vertical rotation position of the base 609. The fourth sensor 624 is equipped with a lower rotation signal plate 621. The first and fourth sensors mentioned above are both photoelectric sensors. The upper and lower signal transmitting plates are baffles. When they block the optical path of the photoelectric sensor, the photoelectric sensor can emit corresponding position information.

[0069] A linear guide rail 615 for adhesive tape is provided on the flip base plate 609, and a tape gripper 614 is mounted on the linear guide rail 615. The tape gripper 614 can be a pneumatic gripper, etc., and a tape pickup device is provided on it. Figure 6 In the illustrated embodiment, the tape pickup device is a tape adsorption plate 616 located at the end of the tape gripper 614. The tape adsorption plate 616 is a negative pressure suction plate, and the negative pressure suction plate has suction holes for adsorbing the back side (the side without adhesive) of the tape. The installation structure of the tape gripper 614 is as follows: a push motor mounting bracket 610 is provided on the flip base plate 609, and a tape push motor 607 is mounted through the push motor mounting bracket 610. The tape push motor 607 is driven by a belt mechanism, which includes a belt idler pulley 617 and a belt 618 mounted on the flip base plate 609 through a belt idler pulley axle 619. The belt idler pulley axle 619 cooperates with the belt idler pulley mounting plate 620 provided on the flip base plate 609. A gripper connecting plate 613 is installed on the tape adhesive linear guide 615, and the gripper connecting plate 613 is connected to the belt through a belt connecting plate 612. The tape gripper 614 is connected to the gripper connecting plate 613 and can reciprocate along the tape-adhesive linear guide 615 driven by the belt 618, thereby switching between its tape-adhesive position and its position of avoiding continuous bags 1001. In order to accurately control the stopping position of the tape gripper 614, a tape-pushing mechanism signal plate 611, a second sensor 608, and a third sensor 623 are provided on the flip base plate 609. The third sensor 623 is mounted on the flip base through a sensor fixing plate 622. The second and third sensors are photoelectric sensors. The tape-pushing mechanism signal plate is a baffle. When it blocks the light path of the photoelectric sensor, the photoelectric sensor can emit corresponding position information.

[0070] The structure of the tape supply device 106 is as follows Figure 7As shown, it includes a base plate 701, on which a tape placement roller shaft 709 is mounted. A tape placement roller 711 is mounted on the tape placement roller shaft 709. The tape placement roller 711 is fixed by tension blocks 713, a spring 712, and an adjustment knob 710 mounted on the tape placement roller shaft 709. Specifically, the three tension blocks 713 fix the inner ring of the tape by spring force. The tape placement roller and spring 712 are fitted onto the tape placement roller shaft 709. By rotating the adjustment knob 710, the spring's pressure on the tape placement roller is adjusted, giving the tape placement roller damping properties and making the tape output smoother. This can be used to package the tape roll 707 required for bonding tape. Additionally, a tape guide roller shaft 703 and a tape guide roller 704 are also provided on the base plate 701. A tape limit block 705 is provided on the tape guide roller 704 to prevent the tape 706 from deviating when passing through this position. A tape anti-drop bar 702 is also provided on one side of the tape guide roller 704, slightly lower than the edge. The tape anti-drop bar 702 is used to prevent the tape from falling off when the tape is used up or falls out of the tape separation mechanism, and to issue an alarm. A photoelectric switch 708 is provided on the substrate 701 on one side of the tape placement roller. The photoelectric switch 708 is used to confirm that there is tape on the equipment and to determine whether the tape is used up.

[0071] A tape cutting device is provided on one side of the tape placement wheel 711 on the substrate 701. The tape cutting device includes a tape cutting base 741, on which a cutter fixing block 714 is provided. A cutter 715 is fixed on the cutter fixing block 714 by a cutter pressure block 717. A cutting cylinder 716 is provided between the cutter fixing block 714 and the tape cutting base 741. The cutting cylinder 716 can drive the cutter fixing block 714, thereby driving the cutter 715 to cut the tape along the width direction. The tape cutting base 741 is also provided with a tape pre-pressure plate 718, an upper pre-pressure cylinder 742, a pre-pressure plate linear guide rail 719, a slider connecting plate 720, a lower pre-pressure block 721, and a lower pre-pressure cylinder 740. The upper pre-pressure plate and the lower pre-pressure block respectively constitute an upper clamping plate and a lower clamping plate, which can be used to clamp and fix the tape. One side of the tape pre-press plate 718 in the tape width direction is vertically guided and engaged with the slider connecting plate 720 provided on the tape cutting base 741 via the pre-press plate linear guide 719, and the other side is connected to the upper pre-press cylinder 742. The cylinder body of the upper pre-press cylinder 742 is fixed on the tape cutting base 741, and the cylinder rod can pull the tape pre-press plate 718 downward and push it upward. The lower pre-press block 721 is provided on the tape cutting base 741 via the lower pre-press cylinder 740, and can be raised to cooperate with the tape pre-press plate 718 to clamp the tape, so that the cutter 715 can cut the tape. To prevent the tape head from shifting at the tape cutting base 741, a temporary tape head holding structure is provided on the top surface of the tape cutting base 741. In this embodiment, the structure is a negative pressure suction hole, which is located behind the upper and lower clamping plates. When the upper and lower clamping plates loosen the tape, the tape head is held in position by the negative pressure suction hole. At this time, the tape head can be clamped from the position between the upper and lower clamping plates so as to pull it.

[0072] The tape supply device 106 also includes a tape length fixing device, which includes a movable frame 735. The movable frame 735 is a horizontal base on which a tape head gripper 727 is mounted. The tape head gripper 727 is a pneumatic gripper, which is reciprocatingly mounted on the movable frame 735 through a gripper fixing plate 728 and a tape pulling linear guide rail 734. As the driving mechanism for the reciprocating motion of the tape head gripper 727, a tape pulling motor 730 is also mounted on the movable frame 735 through a tape pulling motor fixing plate 731. A tape pulling pulley 732 is mounted on the output shaft of the tape pulling motor 730, and a tape traction belt 725 is wound around the tape pulling pulley 732. The tape traction belt 725 is connected to the gripper fixing plate 728. The movable frame 735 is also equipped with a tape length idler pulley 738 corresponding to the tape pulley 732. The tape length idler pulley 738 is mounted on the movable frame 735 via a tape length idler pulley shaft 739, and the tape length idler pulley shaft 739 is mounted on the movable frame via a tape length idler pulley fixing plate 722. The movable frame 735 is equipped with a third photoelectric sensor 723 and a fourth photoelectric sensor 733, which are used to limit the extreme positions of the tape head gripper's movement, respectively. The fourth photoelectric sensor 733 is equipped with a tape pulling signal plate 729 (working principle is the same as the signal plate described above).

[0073] The movable frame 735 is provided with a first tape adsorption plate 724 and a second tape adsorption plate 726 (in other embodiments, there may be only one, such as...). Figure 8 The first tape adsorption plate 724 and the second tape adsorption plate 726 are respectively provided with suction holes for adsorbing tape and temporarily fixing it (in other embodiments, they can also be ordinary trays, which only serve to hold the tape). A first tape lifting cylinder 737 is disposed below the first tape adsorption plate 724, and a second tape lifting cylinder 736 is disposed below the second tape adsorption plate 726. When the first and second tape lifting cylinders retract, the first and second tape adsorption plates are not in contact with the tape. When the first and second tape lifting cylinders extend, the first and second tape adsorption plates and the tape are lifted. To reduce the adhesive force on the adhesive surface of the tape, the first and second tape adsorption plates can adopt a structure with densely distributed protrusions on their surface (e.g., Figure 8 Alternatively, grooves can be provided to reduce the contact area.

[0074] The structure of the abnormal bag receiving device 107 is as follows: Figure 9As shown, it includes a receiving bin, a rejection chute 801, a sensor 802, and a receiving cylinder 803. The receiving bin is installed on the rejection chute 801 and can reciprocate along the rejection chute, thus having a receiving position located on the continuous bag movement path and a standby position avoiding the continuous bag movement path. The receiving cylinder 803 is used to drive the receiving bin to reciprocate. The sensor 802 is used to determine when the continuous bag enters the rejection chute at the start of the rejection action and to determine when there are no continuous bags in the rejection chute after the rejection action is completed.

[0075] The working principle of the abnormal bag rejection and docking device of the present invention is as follows: In the initial state, the continuous bag 1001 that has been filled and sealed passes through the upstream clamping device 5001 and the downstream clamping device 5002 of the compensation centering device 104 in sequence under the action of the guiding device 101 and is conveyed backward. During this process, the upstream clamping device 5001 forms a pair of rollers to convey the continuous bag 1001 through its driving shaft 513 and driven shaft 517.

[0076] When a continuous bag passes through, camera 303 is activated and checks for any clamping issues. If there are no clamping issues, the device continues to transport the continuous bags. If camera 303 detects clamping, the upstream clamping device 5001 stops transporting the continuous bags, and the downstream clamping device 5002 releases the continuous bags and moves upstream to a set position before clamping them. At the same time, the standby bag cutting device 103 receives a signal and cuts the continuous bags. Then, the downstream clamping device 5002 moves downstream to a designated position and, through the cooperation of its drive shaft and driven shaft, transports the cut continuous bags downstream until a set length of continuous bags is left for subsequent docking with the upstream continuous bags. At this time, the receiving bin moves to the receiving position and catches the upstream section of the continuous material belt. The upstream clamping device 5001 continues to convey the continuous bags downstream and detects the feeding situation through the camera 303. When the detection result shows that there is no clamping and the upstream section of the continuous bags moves to the set position, the bag cutting device 103 cuts off the corresponding position of the upstream section again, thereby removing the clamped bags. The removed bags are received by the receiving bin.

[0077] After the continuous bag 1001 is cut, the upstream and downstream segments need to be reconnected. The connection process between the upstream and downstream segments is as follows: First, the tape supply device 106 supplies tape to the tape application device 105. The tape head is attracted to the tape cutting base 741, and the tape pulling motor 730 drives the tape head gripper 727 to the right. Figure 7(From the perspective shown) the tape head is moved and gripped. The tape cutting base 741 releases the tape head from its grip, and the tape pulling motor 730 drives the tape head to move to the left. During the movement, the first and second lifting cylinders rise in sequence, and the first tape adsorption plate 724 and the second tape adsorption plate 726 adsorb the tape respectively. The cutter cuts off the right end of the tape. After the tape supply device 106 prepares the required tape, the tape gripper 614 of the tape applicator 105 is in the open state as the flip base plate 609 changes from a horizontal state to a vertical state. The tape adsorption plate 616 at the end of the tape gripper 614 adsorbs the tape on the first and second tape trays, and then returns to the initial horizontal position. After the downstream clamping device 5002 moves the downstream section of the continuous bag upward and aligns it with the upper end of the upstream section, the tape gripper 614 moves horizontally. Relying on the action of the continuous bag 1001, the tape on the tape adsorption plate is pushed into the tape gripper 614. The tape gripper 614 clamps the continuous bag to achieve tape connection.

[0078] In the above embodiments, the abnormal bag rejection and docking device of the present invention includes a guiding device 101, a clamping detection device 102, a bag cutting device 103, a compensation centering device 104, an adhesive tape applicator 105, an adhesive tape supply device 106, and an abnormal bag receiving device 107, and is equipped with corresponding sensors to achieve fully automated operation of the device. Therefore, those skilled in the art should understand that when the device is configured as a semi-automatic device, the clamping detection device 102, the adhesive tape supply device 106, and the abnormal bag receiving device 107 can all be omitted, and the corresponding functions can be implemented manually. This still has certain advantages in efficiency compared to the existing purely manual methods.

[0079] Embodiments of the continuous bag production equipment of the present invention:

[0080] The production equipment includes a bag filling device, and its innovation lies in the fact that an abnormal bag rejection and docking device using the present invention is provided after the bag filling device.

Claims

1. An abnormal bag rejection and docking device, characterized in that, The device includes a frame with a continuous bag movement path. A compensation centering device, a bag cutting device, and an adhesive tape application device are installed along the continuous bag movement path. The compensation centering device includes an upstream clamping device and a downstream clamping device. The bag cutting device and the adhesive tape application device are located between the upstream and downstream clamping devices. The bag cutting device includes a cutter holder and a cutter for cutting off abnormal bags. At least one of the upstream and downstream clamping devices can reciprocate along the continuous bag movement path to move the cut continuous bags, aligning the bags at both sides of the cut. The adhesive tape application device includes adhesive tape grippers with adhesive tape adsorption plates at both sides of the gripping opening. By translating the adhesive tape grippers, the adhesive tape on the adsorption plates can be pushed into the adhesive tape grippers by the action of the continuous bags. The clamping of the adhesive tape grippers enables the application of adhesive tape to the continuous bags.

2. The abnormal bag rejection and docking device according to claim 1, characterized in that, The upstream clamping device includes an upper roller frame and an upper clamping roller rotatably mounted on the upper roller frame. The upper clamping roller is equipped with an upper clamping roller tensioning drive device for driving it to clamp and release the bag.

3. The abnormal bag rejection and docking device according to claim 2, characterized in that, The upper clamping roller is connected to an upper clamping roller rotation drive device.

4. The abnormal bag rejection and docking device according to claim 1, characterized in that, The upstream clamping device and / or downstream clamping device are mounted on the frame and can reciprocate along the continuous bag movement path via a lead screw and nut drive mechanism.

5. The abnormal bag rejection and docking device according to claim 1, characterized in that, The downstream clamping device includes a lower roller frame and a lower clamping roller rotatably mounted on the lower roller frame, and the lower clamping roller is driven by a lower clamping roller rotation drive device.

6. The abnormal bag rejection and docking device according to claim 5, characterized in that, The lower clamping roller is equipped with a lower clamping roller tensioning drive device for clamping and releasing the bag.

7. The abnormal bag rejection and docking device according to claim 1, characterized in that, The blade is a pair of scissors, which is equipped with a cutting drive device to drive the scissors to perform cutting operations automatically.

8. The abnormal bag rejection and docking device according to claim 7, characterized in that, The cutting tool is connected to the tool holder via a cutting tool feeding device, and the tool holder has a cutting tool working position located at the bag cutting position and a cutting tool idle position to avoid the bag.

9. The abnormal bag rejection and docking device according to claim 1, characterized in that, The tape adsorption plate is a negative pressure adsorption plate, and the negative pressure adsorption plate is provided with adsorption holes for adsorbing the back of the tape.

10. The abnormal bag rejection and docking device according to claim 9, characterized in that, The tape applicator is equipped with a tape supply device, which includes a tape roll holder, a tape head pulling device, a tape support, and a tape cutting device. The tape head pulling device includes a movable frame and tape head grippers mounted on the movable frame. The tape cutting device includes a tape knife.

11. The abnormal bag rejection and docking device according to claim 10, characterized in that, The tape holder includes a support plate for supporting the adhesive side of the tape. The support plate is a lifting support plate, which has a high position for supporting the tape and a low position for avoiding the tape.

12. The abnormal bag rejection and docking device according to claim 10, characterized in that, The tape cutting device is equipped with an upper clamping plate and a lower clamping plate at the tape cutter. Both the upper and lower clamping plates are lifting clamping plates. A temporary tape head holding device is provided on the side of the upper and lower clamping plates near the tape roll frame.

13. The abnormal bag rejection and docking device according to claim 11, characterized in that, The pallet is a horizontal pallet, and the tape gripper is a flip-type gripper with a horizontal tape pasting position and a vertical tape picking position for picking up tape from the pallet.

14. The abnormal bag rejection and docking device according to claim 1, characterized in that, An abnormal bag receiving device is provided on one side of the continuous bag movement path. The abnormal bag receiving device includes a receiving compartment, which has a receiving position located on the continuous bag movement path and a standby position avoiding the continuous bag movement path.

15. The abnormal bag rejection and docking device according to claim 1, characterized in that, It also includes a vision device for detecting abnormal bags, which triggers the upstream clamping device, the downstream clamping device, the bag cutting device, and the adhesive tape device when an abnormal bag is detected.

16. Continuous bag production equipment, including a bag filling device, characterized in that, A defective bag rejection and docking device is provided after the bag filling device. This device includes a frame with a continuous bag movement path. The continuous bag movement path has a vertical section, on which a compensation centering device, a bag cutting device, and an adhesive tape device are provided. The compensation centering device includes an upstream clamping device and a downstream clamping device. The bag cutting device and the adhesive tape device are located between the upstream and downstream clamping devices. The bag cutting device includes a blade holder and a tool for cutting off defective bags. The cutting tool, at least one of the upstream clamping device and the downstream clamping device, can reciprocate along the vertical portion of the continuous bag movement path to drive the cut continuous bags, aligning the bags on both sides of the break formed by the cut continuous bags. The tape applicator includes tape grippers for clamping and sticking tape to the aligned continuous bags. The ends of the tape grippers are provided with tape adsorption plates on both sides of the clamping opening. By translating the tape grippers, the tape on the tape adsorption plates can be pushed into the tape grippers by the action of the continuous bags. The tape grippers clamping can realize the tape connection of the continuous bags.

17. The continuous bag production equipment according to claim 16, characterized in that, The upstream clamping device includes an upper roller frame and an upper clamping roller rotatably mounted on the upper roller frame. The upper clamping roller is equipped with an upper clamping roller tensioning drive device for driving it to clamp and release the bag.

18. The continuous bag production equipment according to claim 17, characterized in that, The upper clamping roller is connected to an upper clamping roller rotation drive device, which is used to drive the upper clamping roller to rotate.

19. The continuous bag production equipment according to claim 16, characterized in that, The upstream clamping device and / or downstream clamping device are mounted on the frame and are reciprocating along the vertical portion of the continuous bag movement path via a lead screw and nut drive mechanism.

20. The continuous bag production equipment according to claim 16, characterized in that, The downstream clamping device includes a lower roller frame and a lower clamping roller rotatably mounted on the lower roller frame. The lower clamping roller is driven by a lower clamping roller rotation drive device, which is used to drive the lower clamping roller to rotate.

21. The continuous bag production equipment according to claim 20, characterized in that, The lower clamping roller is equipped with a lower clamping roller tensioning drive device for clamping and releasing the bag.

22. The continuous bag production equipment according to claim 16, characterized in that, The blade is a pair of scissors, which is equipped with a cutting drive device to drive the scissors to perform cutting operations automatically.

23. The continuous bag production equipment according to claim 22, characterized in that, The cutting tool is connected to the tool holder via a cutting tool feeding device, and the tool holder has a cutting tool working position located at the bag cutting position and a cutting tool idle position to avoid the bag.

24. The continuous bag production equipment according to claim 16, characterized in that, The tape adsorption plate is a negative pressure adsorption plate, and the negative pressure adsorption plate is provided with adsorption holes for adsorbing the back of the tape.

25. The continuous bag production equipment according to claim 24, characterized in that, The tape applicator is equipped with a tape supply device, which includes a tape roll holder, a tape head pulling device, a tape support, and a tape cutting device. The tape head pulling device includes a movable frame and tape head grippers mounted on the movable frame. The tape cutting device includes a tape knife.

26. The continuous bag production equipment according to claim 25, characterized in that, The tape holder includes a support plate for supporting the adhesive side of the tape. The support plate is a lifting support plate, which has a high position for supporting the tape and a low position for avoiding the tape.

27. The continuous bag production equipment according to claim 25, characterized in that, The tape cutting device is equipped with an upper clamping plate and a lower clamping plate at the tape cutter. Both the upper and lower clamping plates are lifting clamping plates. A temporary tape head holding device is provided on the side of the upper and lower clamping plates near the tape roll frame.

28. The continuous bag production equipment according to claim 26, characterized in that, The pallet is a horizontal pallet, and the tape gripper is a flip-type gripper with a horizontal tape pasting position and a vertical tape picking position for picking up tape from the pallet.

29. The continuous bag production equipment according to claim 16, characterized in that, An abnormal bag receiving device is provided on one side of the continuous bag movement path. The abnormal bag receiving device includes a receiving compartment, which has a receiving position located on the continuous bag movement path and a standby position avoiding the continuous bag movement path.

30. The continuous bag production equipment according to claim 16, characterized in that, It also includes a vision device for detecting abnormal bags, which triggers the upstream clamping device, the downstream clamping device, the bag cutting device, and the adhesive tape device when an abnormal bag is detected.

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