Tray discharging and packaging system

Abstract

The invention provides a material tray discharging and packaging system which comprises a machine frame serving as a supporting and mounting carrier, and a rubber band feeding station, a rubber band binding station, a bag opening and packaging station and a discharging station are arranged on the machine frame; the rubber band feeding mechanism is arranged on the rubber band feeding station and used for providing rubber bands for binding the material disc; the rubber band binding mechanism is arranged on the rubber band binding station and used for binding the rubber bands to the stacked trays; the bag opening and packaging mechanism is arranged on the bag opening and packaging station and used for loading the bundled trays into packaging bags and sealing and packaging the packaging bags; and the material moving manipulator is used for moving the material disc from the rubber band binding station to the bag opening and packaging station and moving the material disc from the bag opening and packaging station to the discharging station. According to the charging tray discharging and packaging system, automatic feeding, binding, bagging, vacuumizing, sealing and discharging of rubber bands can be achieved, rapid packaging of the charging tray can be achieved, the automation degree is high, the packaging efficiency and quality are high, the structure is compact, the installation space is small, and running is reliable and stable.

Description

Technical Field

[0001] The invention relates to a packaging device, in particular to a tray discharging and packaging system. Background Art

[0002] During the processing of optical lenses, the optical lenses need to be placed in a receiving component to facilitate turnover and multi-step processing of the optical lenses. The receiving component is generally composed of plate A and plate B. Plate A serves as the bottom plate for placing the lenses, and plate B serves as the cover plate for covering to prevent the lenses from falling and facilitate storage and transportation of the lenses.

[0003] The above-mentioned containing components are also called material trays. In order to facilitate transportation, the material trays are packed when leaving the warehouse. Usually, multiple material trays are tied together with rubber bands to form a whole, which is convenient for transportation. In the prior art, packaging is usually performed manually, which is inconvenient to operate, inefficient, and easy to overturn the material trays. Therefore, there is an urgent need to develop a device that can automatically bundle and pack. Summary of the invention

[0004] Technical issues to be solved

[0005] The technical problem to be solved by the present invention is to provide a tray discharging and packaging system which can realize automatic loading, bundling, packaging and encapsulation of rubber bands and has high automation and work efficiency.

[0006] Technical solutions to the problem

[0007] The present invention provides a tray discharging and packaging system, which comprises:

[0008] The frame 1 is used as a support and mounting carrier, and the frame 1 is provided with a rubber band feeding station, a rubber band tying station, a bag holding and packing station, and a material unloading station;

[0009] The rubber band feeding mechanism 2 is arranged on the rubber band feeding station and is used to provide rubber bands for binding the material tray;

[0010] The rubber band tying mechanism 3 is arranged on the rubber band tying station and is used to tie the rubber band to the stacked material trays;

[0011] The bag-stretching and packaging mechanism 4 is arranged at the bag-stretching and packaging station, and is used to put the bundled material trays into the packaging bags and seal and package them;

[0012] The material transfer robot is used to move the material tray from the rubber band tying station to the bagging and packaging station, and from the bagging and packaging station to the material unloading station.

[0013] Furthermore, it also includes a labeling mechanism 7, which includes a label printer arranged below the frame 1, and a labeling robot arranged above the frame 1 and used to obtain the label on the label printer and attach it to the material tray after the rubber band is tied. The frame 1 is provided with a working hole for accommodating the labeling robot to pass through to obtain the label, and the working hole is located between the rubber band tying station and the bag stretching and packaging station.

[0014] Furthermore, the labeling robot and the material transfer robot are arranged on the same slide and can slide horizontally synchronously; the labeling robot includes a support rod 71 that can realize vertical lifting, and a rotating cylinder 72 is fixed to the bottom of the support rod 71, and a labeling seat 73 is fixed to the lower output end of the rotating cylinder 72, and can drive the labeling seat 73 to rotate horizontally, and the lower surface of the labeling seat 73 is a plane and serves as a working surface, and a plurality of air holes 730 connected to the air source and capable of generating negative pressure and used to absorb labels are opened on the working surface.

[0015] Furthermore, the upper end of the frame 1 is horizontally slidably equipped with a beam bracket 52, and the sliding direction of the beam bracket 52 is perpendicular to the line connecting the rubber band tying station and the bag holding and packaging station. Both sides of the beam bracket 52 are horizontally slidably equipped with a first slide and a second slide along the length direction. The material transfer robot is arranged on the first slide, the bag taking device on the bag holding and packaging mechanism is arranged on the second slide, and the sealing device on the bag holding and packaging mechanism is arranged at the bottom of the beam bracket 52.

[0016] Furthermore, a first platform and a second platform are arranged side by side on the frame 1, the rubber band feeding station and the rubber band tying station are arranged on the first platform, the bag holding and packaging station is arranged on the second platform, the discharge end of the rubber band tying station and the feeding end of the bag holding and packaging station are located at the same end, and form an overall U-shaped conveying direction, the unloading station is arranged at the end of the frame 1, and the unloading station is provided with a discharge platform 8 that can be lifted and lowered.

[0017] Furthermore, the rubber band feeding mechanism comprises:

[0018] The rubber band feeding device comprises a first rotating disk capable of realizing horizontal rotation, a rubber band rack is placed above the first rotating disk, and the rubber band rack is multiple and evenly distributed in the circumferential direction;

[0019] The rubber band loading device is arranged directly above the rubber band feeding device, and is used to move the rubber band rack on the rubber band feeding device to the rubber band binding station. It includes a first mounting seat, on which a swivel seat is rotatably mounted, and the rotation axis of the swivel seat is parallel to the horizontal plane. The first mounting seat is provided with a first driving mechanism for driving the swivel seat to rotate, and the end of the swivel seat is slidably equipped with a second mounting seat, and the sliding direction of the second mounting seat is perpendicular to the rotation axis of the swivel seat. The swivel seat is provided with a second driving device connected to the second mounting seat and used to drive it to slide to achieve telescoping, and the end of the second mounting seat is provided with a clamping device that can clamp the rubber band rack.

[0020] Furthermore, the clamping device includes a first guide rail arranged at the end of the second mounting seat, and the two ends of the first guide rail are symmetrically slidably equipped with first sliders, the sliding direction of the first slider is perpendicular to the sliding direction of the second mounting seat, and the first slider is provided with a clamping claw, and a clamping area is formed between the two clamping claws. The second mounting seat is provided with a clamping claw cylinder, and the output shaft of the clamping claw cylinder is connected to the first slider and is used to realize the clamping or loosening of the clamping claw.

[0021] Furthermore, a positioning hole is provided at the center of the top of the rubber band frame, and a positioning shaft is provided at the end of the second mounting seat which can be inserted into the positioning hole and realize radial positioning.

[0022] Furthermore, the swivel seat is rotatably mounted on the first mounting seat via a main shaft, and the first driving mechanism includes a gear fixed to the end of the main shaft, a rack meshing with the gear, and a first cylinder connected to the rack and used to drive its axial movement.

[0023] Furthermore, the number of the first driving mechanisms is two and they are symmetrically arranged on both sides of the first mounting seat.

[0024] Furthermore, the side wall of the first mounting seat is slidably provided with a second slider, the sliding direction of the second slider is perpendicular to the axis of the main shaft, the rack is fixed on the second slider, and the output shaft of the first cylinder is connected to the second slider and is used to drive it to slide.

[0025] Furthermore, a guide rod is fixed to the rear end of the second mounting seat, the length direction of the guide rod is perpendicular to the rotation axis of the rotating seat, and a guide hole is opened on the rotating seat to allow the guide rod to pass through and achieve sliding fit. The second driving device is a cylinder, and its output end is connected to the second mounting seat.

[0026] Furthermore, a first contact switch and a second contact switch are provided on the first mounting seat. The first contact switch can be triggered when the rotating seat is rotated to a vertical state, and the second contact switch can be triggered when the rotating seat is rotated to a horizontal state.

[0027] Furthermore, a third contact switch is provided at both limit positions of the second mounting seat.

[0028] Furthermore, the rubber band rack includes a frame-shaped bracket, a top plate is provided on the top of the frame-shaped bracket, a protrusion is provided on the edge of the top plate for allowing the clamping device to clamp and fix, and a slot is provided on the side wall of the frame-shaped bracket for clamping the rubber band. The slots are multiple and equidistantly arranged along the length direction of the frame-shaped bracket.

[0029] Furthermore, the rubber band tying mechanism comprises:

[0030] A first horizontal slide, wherein the first horizontal slide is horizontally slidably provided with a first bracket plate;

[0031] A third mounting seat is horizontally slidably mounted on the first bracket plate, wherein the sliding direction of the third mounting seat is perpendicular to the sliding direction of the first bracket plate, and the third mounting seats are two and symmetrically arranged, and the two third mounting seats can realize opposite movement or opposite movement;

[0032] A material supporting assembly, comprising a material supporting slider vertically slidably mounted on the third mounting seat, each of the third mounting seats being provided with two material supporting sliders, and the two material supporting sliders being able to move toward each other or move away from each other, a material supporting rod parallel to the sliding direction of the first bracket plate being provided on the inner side of the material supporting slider, and a material supporting area capable of accommodating a rubber band to be inserted and stretched out being formed between the material supporting rods;

[0033] The loading platform is arranged on the moving path of the material supporting area and is used for placing the material trays to be packaged.

[0034] Furthermore, the first bracket plate is provided with a third driving mechanism for driving the two third mounting seats to move synchronously closer or farther away from each other.

[0035] Furthermore, the third driving mechanism includes two first pulleys arranged in parallel, a first belt is provided between the two first pulleys, the movement direction of the first belt is parallel to the sliding direction of the third mounting seat, the two third mounting seats are respectively connected to the first belts on both sides of the first pulley, and the first bracket plate is provided with a third driving motor for driving the first pulley to rotate.

[0036] Furthermore, the third mounting seat is provided with a fourth driving mechanism for driving the supporting sliding block to move up and down, and the fourth driving mechanism is a belt and / or a cylinder.

[0037] Furthermore, a vertical slide rail is fixed on the third mounting seat, and the material supporting slider includes an upper material supporting slider and a lower material supporting slider slidably mounted on the vertical slide rail. The third mounting seat is provided with a second belt assembly for driving the upper material supporting slider to slide, and a material supporting cylinder for driving the lower material supporting slider to slide.

[0038] Furthermore, the second belt assembly includes two second pulleys arranged in parallel, a second belt is provided between the two second pulleys, the movement direction of the second belt is parallel to the sliding direction of the material support slider, the upper material support slider is fixedly connected to the second belt, and the third mounting seat is provided with a fourth drive motor for driving the second pulley to rotate.

[0039] Furthermore, the two support rods located on the same third mounting seat are located on the same vertical plane.

[0040] Furthermore, a push rod cylinder is provided on the inner side of the material supporting sliding block, the output end of the push rod cylinder is connected to the material supporting rod and can drive the material supporting rod to move axially, and the sliding direction of the material supporting rod is parallel to the sliding direction of the first bracket plate.

[0041] Furthermore, a connecting block arranged horizontally and inwardly is fixed to the output end of the push rod cylinder, and the support rod is fixed to the inner end of the connecting block.

[0042] Furthermore, the loading platform includes a horizontally arranged loading platform body and a fifth driving motor for driving the loading platform body to rotate horizontally.

[0043] Furthermore, the bag-supporting and packaging mechanism comprises:

[0044] The packaging platform 45 is used for packaging the trays;

[0045] A bag taking device, comprising a packaging bag placing platform 44 for placing packaging bags and a bag taking robot for moving packaging bags on the packaging bag placing platform 44 to a packaging platform;

[0046] A bag-opening device 46, used for opening the packaging bag;

[0047] A pushing device 47, used to push the tray to be packaged into the opened packaging bag;

[0048] A vacuum device, used to vacuum the packaging bag;

[0049] The sealing device 43 is used to perform hot-melt sealing on the packaging bag.

[0050] Furthermore, the packaging bag placement platform 44 is located directly below the packaging platform 45 , and the packaging platform 44 can be horizontally rotated and the material taking port at the upper end of the packaging bag placement platform 44 can be opened or closed.

[0051] Furthermore, the packaging platform 45 includes one or more platform plates that can realize horizontal rotation and a platform plate driving device for driving the platform plates to rotate horizontally. When the platform plates are in a horizontal state, the packaging platform is formed; when the platform plates are rotated to a vertical state, an opening is formed and the upper end of the packaging bag placement platform 44 is exposed to form a material collection window.

[0052] Furthermore, the bag-taking robot includes a main mounting seat arranged above the packaging platform 45 and capable of horizontal sliding, and a secondary mounting seat 4201 is vertically slidably provided on the main mounting seat, and a first suction cup 4202 arranged downward and used to suck the packaging bag is installed on the secondary mounting seat 4201.

[0053] Furthermore, a discharging cylinder 4203 is vertically arranged on the auxiliary mounting seat 4201, and a second suction cup 4204 for sucking up the packaged material tray to transport it to the finished product discharging station is provided at the lower output end of the discharging cylinder 4203.

[0054] Furthermore, a third suction cup 4804 facing upward is installed at the feeding end of the packaging platform 45. The third suction cup 4804 can move vertically and is used to suck the lower bag opening of the packaging bag to fully open the bag opening and provide entry space for the bag-holding device 46.

[0055] Furthermore, the pushing device 47 includes a placing table 4702 for placing the material tray to be packaged, and a push plate 4703 facing the packaging platform 45 and used to horizontally push the material tray on the placing table 4702 to the packaging platform 45; the bag-supporting device 46 includes a plurality of bag-supporting rods symmetrically arranged on both sides of the placing table 4702 and parallel to the sliding direction of the push plate 4703, and the bag-supporting rods can slide horizontally toward or away from the placing table 4702, and a bag-supporting area is formed between the bag-supporting rods, and the width and height of the bag-supporting area are variable and the packaging bag can be horizontally inserted and opened.

[0056] Furthermore, the bag-supporting device 46 comprises:

[0057] The first slide 4601 can slide horizontally, and its sliding direction is parallel to the pushing direction of the pushing device 47;

[0058] The fourth mounting seat 4602 is horizontally slidably mounted on the first slide seat 4601. The sliding direction of the fourth mounting seat 4602 is perpendicular to the sliding direction of the first slide seat 4601. There are two fourth mounting seats 4602 and they are symmetrically arranged. The two fourth mounting seats 4602 can move towards each other or move away from each other. The pushing device 47 is located between the two fourth mounting seats 4602.

[0059] The bag-supporting assembly is mounted on the fourth mounting seat 4602, and includes a fixed sliding block and a movable sliding block 4605 vertically slidably mounted on the upper end of the fixed sliding block. Bag-supporting rods are mounted on both the fixed sliding block and the movable sliding block, and the length direction of the bag-supporting rods is parallel to the sliding direction of the first sliding seat 4601.

[0060] Furthermore, the exhaust device includes an exhaust pipe 4610 which is arranged on the side wall of the fourth mounting seat 4602 and can slide horizontally. The length direction and sliding direction of the exhaust pipe 4610 are parallel to the sliding direction of the first sliding seat 4601.

[0061] Furthermore, the exhaust pipe 4610 is a rigid pipe and can flatten the mouth of the packaging bag when the fourth mounting seat 4602 slides.

[0062] Beneficial Effects

[0063] The material tray discharging and packaging system of the present invention can realize automatic loading, bundling, bagging, vacuuming, sealing and unloading of rubber bands, can realize rapid packaging of material trays, has a high degree of automation, high packaging efficiency and quality, and has a compact structure, a small installation space, and reliable and stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 It is a structural schematic diagram of the tray discharging and packaging system of the present invention;

[0065] Figure 2 It is a schematic diagram of the internal structure of the tray discharging and packaging system of the present invention;

[0066] Figure 3 It is a structural schematic diagram of the crossbeam support of the tray discharging and packaging system of the present invention;

[0067] Figure 4 for Figure 3 Enlarged view of middle C;

[0068] Figure 5 It is a structural schematic diagram of the rubber band feeding mechanism of the tray discharging and packaging system of the present invention;

[0069] Figure 6 It is a structural schematic diagram of a rubber band feeding device of a rubber band feeding mechanism of a tray discharging and packaging system of the present invention;

[0070] Figure 7 It is a structural schematic diagram of the rubber band frame of the rubber band feeding mechanism of the tray discharging and packaging system of the present invention;

[0071] Figure 8 It is a schematic diagram of feeding of the rubber band feeding mechanism of the tray discharging and packaging system of the present invention;

[0072] Fig. 9It is a structural schematic diagram of a rubber band loading device of a rubber band feeding mechanism of a tray discharging and packaging system of the present invention;

[0073] Fig.10 It is a structural schematic diagram of the clamping device of the rubber band feeding mechanism of the tray discharging and packaging system of the present invention;

[0074] Fig.11 It is a structural schematic diagram of the first driving mechanism of the rubber band feeding mechanism of the tray discharging and packaging system of the present invention;

[0075] Fig.12 It is a schematic diagram of the installation state of the rubber band tying mechanism of the tray discharging and packaging system of the present invention;

[0076] Fig.13 It is a schematic diagram of the use state of the rubber band tying mechanism of the tray discharging and packaging system of the present invention;

[0077] Fig.14 It is a schematic diagram of the installation of the loading platform of the rubber band tying mechanism of the tray discharging and packaging system of the present invention;

[0078] Fig.15 It is a structural schematic diagram of the rubber band tying mechanism of the tray discharging and packaging system of the present invention;

[0079] Fig.16 It is a schematic diagram of the installation of the supporting cylinder of the rubber band tying mechanism of the tray discharging and packaging system of the present invention;

[0080] Fig.17 It is a schematic diagram of the installation of the material supporting slider of the rubber band tying mechanism of the material tray discharging and packaging system of the present invention;

[0081] Fig.18 It is a schematic diagram of another angle of installation of the material supporting slider of the rubber band binding mechanism of the material tray discharging and packaging system of the present invention;

[0082] Fig.19 It is a schematic diagram of the installation of the fourth drive motor of the rubber band tying mechanism of the tray discharging and packaging system of the present invention;

[0083] Fig. 20 for Fig.19 Enlarged view of part A in the middle;

[0084] Fig.21 It is a structural schematic diagram of the bag-supporting and packaging mechanism of the tray discharging and packaging system of the present invention;

[0085] Fig. 22 It is a schematic structural diagram from another angle of the bag-supporting and packaging mechanism of the tray discharging and packaging system of the present invention;

[0086] Fig.23 It is a schematic diagram of the installation of the bag taking device of the bag holding and packing mechanism of the tray discharging and packing system of the present invention;

[0087] Fig.24 It is a schematic diagram of the installation of the bag-holding device of the bag-holding and packaging mechanism of the tray discharging and packaging system of the present invention;

[0088] Fig.25 It is a structural schematic diagram of a bag-holding device of a bag-holding and packaging mechanism of a tray discharging and packaging system of the present invention;

[0089] Fig.26 It is a cross-sectional view of a bag-supporting device of a bag-supporting and packaging mechanism of a tray discharging and packaging system of the present invention;

[0090] Fig. 27 It is a structural schematic diagram of a material pushing device of a bag-supporting and packaging mechanism of a tray discharging and packaging system of the present invention;

[0091] Fig.28 A cross-sectional view of a lower pressure plate of a bag-supporting and packaging mechanism of a tray discharging and packaging system of the present invention;

[0092] Fig.29 for Fig.28 Enlarged view of middle part B;

[0093] Fig.30 It is a structural schematic diagram of a sealing device of a bag-supporting and packaging mechanism of a tray discharging and packaging system of the present invention;

[0094] Fig.31 It is a structural schematic diagram of a bag taking device of a bag holding and packing mechanism of a tray discharging and packing system of the present invention;

[0095] Fig.32 This is a schematic structural diagram from another angle of the bag taking device of the bag supporting and packaging mechanism of the tray discharging and packaging system of the present invention. DETAILED DESCRIPTION

[0096] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0097] See also Figure 1-Figure 32The present invention provides a tray discharging and packaging system, which is used to tie rubber bands and pack stacked trays, and includes a frame 1, a rubber band feeding mechanism 2, a rubber band tying mechanism 3, a bag holding and packaging mechanism 4 and a material transfer robot; wherein the frame 1 is used as a support and installation carrier for installing the above-mentioned mechanisms, and a rubber band feeding station, a rubber band tying station, a bag holding and packaging station and a material unloading station are provided on the frame 1; the rubber band feeding mechanism 2 is arranged on the rubber band feeding station, and is used to provide rubber bands for binding the trays; the rubber band tying mechanism 3 is arranged on the rubber band tying station, and is used to bind the rubber bands to the stacked trays; the bag holding and packaging mechanism 4 is arranged on the bag holding and packaging station, and is used to put the bound trays into packaging bags, and seal and pack them. ; The material moving robot is used to move the material tray from the rubber band tying station to the bag holding and packaging station, and from the bag holding and packaging station to the unloading station. In this embodiment, the material moving robot includes a first material moving robot 6 and a second material moving robot, wherein the first material moving robot is used to move the material tray from the rubber band tying station to the bag holding and packaging station to realize the unloading of the rubber band tying mechanism and the feeding of the bag holding and packaging mechanism, and the second material moving robot is used to move the material tray from the bag holding and packaging station to the unloading station to realize the final unloading. The second robot is also used for taking out the packaging bag and assisting in taking out the bag. The structure will be described in detail below; a material unloading platform 8 is provided on the unloading station, and the material unloading platform 8 can be lifted and lowered to facilitate stacking and manual or mechanical material taking.

[0098] In the present application, a first platform and a second platform are arranged side by side on the frame 1. The first platform and the second platform are rectangular plates whose long side ends are in contact with each other. The rubber band feeding station and the rubber band tying station are arranged on the first platform, and the bag holding and packaging station is arranged on the second platform. The discharge end of the rubber band tying station and the feeding end of the bag holding and packaging station are located at the same end, and the overall U-shaped conveying direction is formed, which reduces the length space of the equipment and facilitates rapid material movement. The unloading station is arranged at the end of the frame 1.

[0099] The present application further includes a labeling mechanism 7, which includes a label printer and a labeling robot. The label printer is arranged below the frame 1 for printing labels, and the labeling robot is arranged above the frame 1 for obtaining labels on the label printer and attaching them to the material tray after the rubber band is tied. At the same time, a working hole is opened on the frame 1, and the working hole is located between the rubber band tying station and the bag holding and packaging station. It can allow the labeling robot to pass through from top to bottom to obtain the label on the label printer; in order to avoid the increase in cost and installation space caused by too many robots, and to facilitate control and avoid interference and collision during operation, in the present application, the labeling robot and the material transfer robot (the first material transfer robot) are arranged on the same slide seat and can slide horizontally synchronously; refer to Figure 4The labeling robot includes a vertically arranged support rod 71, which can be lifted and lowered vertically. A rotating cylinder 72 is fixed at the bottom of the support rod 71. The output end of the rotating cylinder 72 is arranged vertically downward, and a labeling seat 73 is fixed on its output end. The rotating cylinder can drive the labeling seat 73 to rotate horizontally, that is, the rotation axis of the labeling seat is perpendicular to the horizontal plane, and labeling at different angles can be achieved. The labeling seat is a rectangular structure as a whole. The lower surface of the labeling seat 73 is a plane, which serves as a working surface. A plurality of air holes 730 are opened on the working surface. The air holes 730 are connected to an air source to generate negative pressure, which is then used to absorb labels to achieve label removal.

[0100] A horizontally arranged beam 51 is provided on both sides of the upper end of the frame 1, and a guide rail is provided on the beam. A beam bracket 52 is provided for horizontal sliding between the two guide rails. The sliding direction of the beam bracket 52 is perpendicular to the length direction thereof (the beam bracket). At the same time, the first slide and the second slide are provided for horizontal sliding along the length direction on both sides of the beam bracket 52, perpendicular to the line connecting the rubber band tying station and the bag holding and packaging station, that is, perpendicular to the line connecting the first platform and the second platform. That is, the first slide and the second slide are respectively provided on both sides of the beam bracket, and can realize independent horizontal sliding without interfering with each other. In it, the first slide is arranged on the side of the feeding end facing the bag-holding and packaging mechanism, the second slide is arranged on the side of the discharging end facing the bag-holding and packaging mechanism, the first material moving robot and the labeling mechanism 7 are arranged on the first slide, the bag taking device on the bag-holding and packaging mechanism is arranged on the second slide, and the sealing device on the bag-holding and packaging mechanism is arranged at the bottom of the beam bracket 52; by sharing a beam bracket, material moving, labeling and discharging can be realized, the use of the slide is reduced, and then the manufacturing cost is reduced, and at the same time it is beneficial to the overall layout of the equipment, convenient for collaboration, and avoidance of interference.

[0101] The structures of the rubber band feeding mechanism 2, the rubber band tying mechanism 3, and the bag holding and packaging mechanism 4 are described in detail below:

[0102] Rubber band feeding mechanism 2, see Figure 5-Figure 11 , including a mounting platform (i.e., the first platform of the frame), a rubber band feeding device 22 arranged below the mounting platform, and a rubber band loading device 21 arranged on the mounting platform.

[0103] The rubber band feeding device 22 includes a first turntable 2201, which is horizontally arranged and can realize horizontal rotation, that is, its rotation axis is perpendicular to the horizontal plane. A first driving motor 2203 is arranged at the lower end of the first turntable 2201, and the output end of the first driving motor 2203 is connected to the first turntable, which is used to drive the first turntable 2201 to rotate. A rubber band rack 29 is placed above the first turntable 2201. There are multiple rubber band racks 29 and they are evenly distributed circumferentially. In order to improve the placement accuracy and avoid deflection during rotation, a plurality of placement grooves 2202 are evenly distributed circumferentially on the top surface of the first turntable, which can just accommodate the lower end of the rubber band rack 29 to be inserted, thereby realizing the placement of the rubber band rack on the first turntable.

[0104] The rubber band loading device 21 is located directly above the rubber band feeding device 22, and is used to move the rubber band rack 29 on the rubber band feeding device 22 to the rubber band binding station. Therefore, a working hole 10 is opened on the mounting platform for taking and loading materials for the rubber band loading device. The rubber band loading device 21 includes a first mounting seat 2101, on which a swivel seat 2102 is rotatably mounted, and the rotation axis of the swivel seat 2102 is parallel to the horizontal plane. At the same time, a first driving mechanism is provided on the first mounting seat 2101, and the first driving mechanism is used to drive the swivel seat 2102 to rotate; in this embodiment, a main shaft 21021 is provided on both sides of the swivel seat 2102, and the swivel seat 2102 is rotatably mounted on the first mounting seat 2101 through the main shaft 21021. The first driving mechanism includes a gear 2103, a rack 2105 and a first cylinder 2106, and the gear 2103 is fixed to the end of the main shaft 21021. The first cylinder 2106 is fixed to the side wall of the first mounting seat 2101, and its output end is connected to the rack 2105, which is used to drive the rack to move axially. The rack is meshed with the gear 2103 to drive the gear to rotate, and then drive the swivel seat to rotate; in order to improve the driving stability and reliability, in this embodiment, a second slider 2104 is slidably provided on the side wall of the first mounting seat 2101, and the sliding direction of the second slider 2104 is perpendicular to the axis of the main shaft 21021. In order to reduce the installation space, the second slider in this application slides horizontally, and the rack 2105 is fixed on the second slider 2104. The output shaft of the first cylinder 2106 is connected to the second slider 2104, and the sliding of the second slider 2104 is driven to drive the sliding of the rack; in order to improve the rotation stability of the swivel seat and avoid the generation of a force arm, in this embodiment, there are two first driving mechanisms, which are symmetrically arranged on both sides of the first mounting seat 2101.

[0105] A second mounting seat 2107 is slidably provided at the end of the rotating seat 2102, and the sliding direction of the second mounting seat 2107 is perpendicular to the rotation axis of the rotating seat 2102. A second driving device 2109 is provided on the rotating seat 2102, and the second driving device 2109 is connected to the second mounting seat 2107 to drive it to slide, thereby realizing telescoping. In this embodiment, a plurality of guide rods 2108, preferably four, are fixed to the rear end of the second mounting seat 2107, and the length direction of the guide rods 2108 is perpendicular to the rotating seat The rotating axis of 2102 is provided with a guide hole corresponding to the guide rod on the swivel seat 2102, and the guide hole can accommodate the guide rod 2108 to pass through, thereby realizing the sliding fit of the second mounting seat. In order to improve the operation accuracy and reduce the production difficulty and cost, a guide sleeve is provided in the guide hole, and the guide rod is slidably fitted in the guide sleeve; the second driving device 2109 is a cylinder, which is fixed on the swivel seat, and the length direction is parallel to the length direction of the guide rod. The output end thereof passes through the swivel seat and is connected to the second mounting seat, so as to drive the movement of the second mounting seat.

[0106] In the present application, a first contact switch and a second contact switch are provided on the first mounting seat 2101. When the rotating seat 2102 is rotated to a vertical state, the first contact switch can be triggered. At this time, the clamping device is downward, and is used to clamp the rubber band rack on the first turntable, or place an empty rubber band rack on the first turntable; when the rotating seat 2102 is rotated to a horizontal state, the second contact switch can be triggered. At this time, it is in the rubber band binding station, and the rubber band binding mechanism (another application) on the station can be fed with rubber bands; in the present application, the rotation angle of the rotating seat is 90 degrees, that is, from a vertical material loading and unloading state to a horizontal working state; at the same time, a third contact switch is provided on both limit positions of the second mounting seat 2107, and the third contact switch is arranged at both ends of the guide rod; for the convenience of installation, the first third contact switch is arranged at the end of the rotating seat, which faces the second mounting seat, and the second third contact switch is arranged at the end of the guide rod. For the convenience of installation, a connecting plate is provided at the ends of two of the guide rods, and the second third contact switch is installed on the connecting plate.

[0107] A clamping device is provided at the end of the second mounting seat 2107 for clamping and fixing the rubber band frame 29; the clamping device includes a first guide rail 2110, which is arranged at the end of the second mounting seat 2107, and is two and parallel. A first slider 2111 is symmetrically slidably provided at both ends of the first guide rail 2110, and the sliding direction of the first slider 2111 is perpendicular to the sliding direction of the second mounting seat 2107. In this embodiment, the sliding direction of the first slider 2111 is parallel to the rotation axis of the rotating seat 2102. A clamping claw 2112 is provided on the first slider 2111. The clamping claw 2112 is a strip-shaped structure. A clamping area is formed between the two clamping claws 2112, which can clamp the rubber band rack 29. At the same time, a clamping claw cylinder 2113 is provided on the second mounting seat 2107. The output shaft of the clamping claw cylinder 2113 is connected to the first slider 2111, and is used to drive the first slider 2111 to slide, thereby realizing the clamping or loosening of the clamping claw; in this embodiment, the clamping claw cylinder is a double-axis extension cylinder, both ends of which have output shafts, which can realize synchronous extension and retraction.

[0108] In order to ensure the grasping accuracy, in this embodiment, a positioning hole 2902 is provided at the top center of the rubber band frame 29. At the same time, a positioning shaft 2114 is provided at the end of the second mounting seat 2107. The positioning shaft 2114 can be inserted into the positioning hole 2902 to achieve radial positioning.

[0109] The rubber band rack 29 includes a frame-shaped bracket 2903, which is vertically arranged and has a rectangular cross-section. A top plate 2901 is arranged on the top of the frame-shaped bracket 2903, a positioning hole 2902 is opened in the center of the top plate 2901, and a protrusion 2904 is arranged on the edge of the top plate 2901. The protrusion 2904 can be clamped and fixed by a clamping device. In this embodiment, the protrusion is an arc-shaped structure convex outward. At the same time, a groove body that can accommodate the protrusion to be clamped and fixed is arranged on the inner wall of the clamp; a clamping groove 2903a is arranged on the side wall of the frame-shaped bracket 2903. The clamping groove 2903a is used to clamp the rubber band. There are multiple clamping grooves 2903a, which are equidistantly arranged along the length direction of the frame-shaped bracket 2903, and the rubber band can be sleeved (hooped) in the clamping groove.

[0110] The following is a brief description of the working principle of the rubber band feeding mechanism:

[0111] S1, the first rotating disk 2201 rotates to rotate one of the rubber band racks 29 filled with rubber bands to a waiting position;

[0112] S2, the first cylinder 2106 drives the second slider 2104 to slide, drives the rack to slide and drives the gear to rotate, so that the swivel seat rotates until it rotates 90 degrees and is in a vertical state. At this time, the clamping device is located directly above the rubber band rack;

[0113] S3, the second driving device (cylinder) is activated to drive the second mounting seat 2107 to move vertically downward until it contacts the top of the rubber band frame 29. At the same time, the positioning shaft 2114 on the second mounting seat 2107 is inserted into the positioning hole on the top of the rubber band clip to achieve radial positioning;

[0114] S4, the clamping device is actuated, so that the clamping claws clamp the raised parts on both sides of the top of the rubber band frame to achieve clamping and fixing of the rubber band frame;

[0115] S5, the second driving device (cylinder) moves in the reverse direction, driving the second mounting seat 2107 to move to the upper limit position;

[0116] S6, the first cylinder moves in the reverse direction, driving the second slider to rotate in the reverse direction, driving the rack and driving the gear to rotate in the reverse direction, so that the swivel seat rotates in the reverse direction to a horizontal state; providing rubber bands for the rubber band binding mechanism on the next station;

[0117] When the rubber bands on the rubber band rack are used up, the empty rubber band rack is placed on the empty position of the first turntable, and then the next full rubber band rack is grabbed, and the process repeats this way.

[0118] The above-mentioned rubber band feeding mechanism adopts an up-and-down structural setting, which reduces the overall occupied space, has a compact structure and a small installation space; the turntable feeding structure is adopted, which can realize rotary feeding, has a simple structure, low manufacturing cost, and reliable operation. At the same time, the rotation space and occupied space are small, which is conducive to the miniaturization of the equipment; the turntable is driven by a rack and pinion, with low manufacturing cost, large driving force, stable and reliable use; a positioning component is arranged on the rubber band frame, which can realize precise positioning with the clamping device, improve the positioning accuracy of the grasping and the reliability of the clamping, and avoid deflection; the rubber band feeding mechanism of the present invention used for tray packaging has a compact structure, a small installation space, can realize rapid feeding and loading of rubber bands, has reliable operation, and provides rapid and stable feeding for tray packaging.

[0119] Rubber band mechanism, see Figure 12-Figure 20 A first horizontal slide 31, a third mounting seat 3201, a support assembly and a loading platform 33 are provided on the mounting platform.

[0120] The first horizontal slide 31 is horizontally arranged, and a first bracket plate 3102 is horizontally slidably provided on the first horizontal slide 31. In the present embodiment, it comprises a parallel slide rail and a screw rod (arranged in the shell 3101), a slide seat is threadedly connected to the screw rod, and another slide seat is slidably provided on the slide rail. The first bracket plate 3102 is horizontally arranged between the two slide seats and can slide horizontally with the slide seat. A driving motor is provided at the end of the screw rod for driving the screw rod to rotate, thereby driving the first bracket plate to slide horizontally. The above structure can realize a long-stroke action of the first bracket plate, thereby moving between the rubber band loading station and the rubber band tying station. A rubber band loading device 21 is provided at the rubber band loading station for rubber band loading. The rubber band is sleeved on a horizontal rubber band rack 29. The rubber band tying mechanism of the present application can remove the rubber bands on the rubber band rack in sequence and tie them to the material tray on the loading platform 33, thereby realizing the packaging of the material tray.

[0121] The third mounting seat 3201 is horizontally slidably mounted on the first bracket plate 3102, and the sliding direction of the third mounting seat 3201 is perpendicular to the sliding direction of the first bracket plate 3102. There are two third mounting seats 3201 and they are symmetrically arranged. The two third mounting seats 3201 can realize the movement toward each other (approaching each other) or the movement away from each other (moving away from each other); a third driving mechanism is arranged on the first bracket plate 3102, and the third driving mechanism is used to drive the two third mounting seats 3201 to move toward each other (approaching each other) or the movement away from each other (moving away from each other) synchronously; specifically, the third driving mechanism includes two first pulleys 3103 arranged in parallel. In the present application, the rotation axes of the two first pulleys are perpendicular to the horizontal plane, and a first belt 3104 is arranged between the two first pulleys 3103. The movement direction of the first belt 3104 is parallel to the sliding direction of the third mounting seat 3201, that is, the connecting line of the two first pulleys is parallel to the third mounting seat. In the sliding direction, the two third mounting seats 3201 are respectively connected to the first belt 3104 on both sides of the first pulley, and the two sides of the first pulley, that is, taking the line connecting the two first pulleys as the axis, the conveying directions of the first belts on both sides of the axis are opposite, and the two third mounting seats are respectively fixedly connected to the first belts at both ends of the axis, thereby realizing synchronous reverse sliding; a third driving motor 3105 is provided on the first bracket plate 3102, and the third driving motor 3105 is connected to one of the first pulleys, thereby realizing the driving of the first belt; in order to improve the reliability and stability of the transmission, in this embodiment, the first pulley is a synchronous pulley, and the first belt is a synchronous belt, which can ensure stable transmission and avoid slipping; a connecting part 3209 for connecting to the first belt is provided at the lower end of the third mounting seat 3201, and the connecting part 3209 includes a fixed clamping block and a movable clamping block, which are used to clamp the first belt, thereby realizing a fixed connection with the first belt.

[0122] The material supporting assembly is arranged on the third mounting seat 3201, and includes a material supporting slider, which is vertically slidably mounted on the third mounting seat 3201, that is, the sliding direction of the material supporting slider is perpendicular to the horizontal plane, and each third mounting seat 3201 is provided with two material supporting sliders, and the two material supporting sliders located on the same side (the same third mounting seat) can realize opposite movement (approaching each other) or back movement (moving away from each other), and a material supporting rod 3208 is provided on the inner side of the material supporting slider, and the axis of the material supporting rod 3208 is parallel to the sliding direction of the first bracket plate 3102, and a material supporting area is formed between each material supporting rod 3208, which can accommodate a rubber band to be inserted and stretch the rubber band; and the two material supporting rods 3208 located on the same third mounting seat 3201 are located on the same vertical plane, so when supporting the material, the rubber band can be stretched into a rectangle.

[0123] A fourth driving mechanism is provided on the third mounting seat 3201, and the fourth driving mechanism is used to drive the supporting sliding block to move up and down. The fourth driving mechanism is a belt and / or a cylinder, or includes both a belt and a cylinder.

[0124] The preferred embodiments of the present application are described below:

[0125] A vertical slide rail is fixed on the third mounting seat 3201, and the length direction of the vertical slide rail is perpendicular to the horizontal plane. The supporting slider includes an upper supporting slider 3204 and a lower supporting slider 3205. The upper supporting slider 3204 and the lower supporting slider 3205 are both slidably mounted on the vertical slide rail, and the upper supporting slider 3204 is located at the upper end of the lower supporting slider 3205. At the same time, a second belt assembly and a supporting cylinder 3206 are provided on the third mounting seat 3201, wherein the second belt assembly is connected to the upper supporting slider 3204 for driving the upper supporting slider 3204 to move up and down, and the supporting cylinder 3206 is connected to the lower supporting slider 3205 for driving the lower supporting slider 3205 to move up and down; the second belt assembly includes two second pulleys 3202 arranged in parallel. In this embodiment, the second pulley The axis is parallel to the sliding direction of the first horizontal slide, and a second belt 3203 is provided between the two second pulleys 3202. The movement direction of the second belt 3203 is parallel to the sliding direction of the support slider, that is, the connecting line of the two second pulleys is perpendicular to the horizontal plane, and the upper support slider 3204 is fixedly connected to the second belt 3203, and the upper support slider is driven by the rotation of the second belt, and a fourth driving motor is provided on the third mounting seat 3201; in order to improve the stability and reliability of the drive and avoid the occurrence of slipping, in this embodiment, the second pulley is a synchronous pulley, and the second belt is a synchronous belt; the upper support slider is connected to the second belt through another connecting part 32041, which includes a fixed clamping block and a movable clamping block, which are used to clamp the second belt, thereby achieving a fixed connection with the second belt.

[0126] In order to enable the support rod to be quickly separated from the rubber band, in this embodiment, a push rod cylinder 3207 is provided on the inner side of the support slider. The push rod cylinder is horizontally arranged, and its output end is toward the rubber band loading station. The output end of the push rod cylinder is connected to the support rod 3208, which is used to drive the support rod 3208 to move axially. The length direction of the support cylinder is parallel to the sliding direction of the first bracket plate. At the same time, the sliding direction of the support rod 3208 is parallel to the sliding direction of the first bracket plate 3102. After the material is tied, the support can be achieved through the rapid action of the push rod cylinder. The rapid movement of the rod can quickly move the supporting rod out of the rubber band, avoiding friction on the material tray due to too slow speed and causing the material tray to shake, thereby improving the reliability and stability of the overall movement; in order to facilitate the retrieval of the rubber band of the rubber band feeding mechanism (rubber band), in this embodiment, a connecting block 32071 is fixed at the output end of the push rod cylinder 3207, and the connecting block 32071 is a strip structure, which is horizontally arranged with the end facing inward (toward the supporting area), and the supporting rod 3208 is fixed at the inner end position of the connecting block 32071, which is convenient for taking materials.

[0127] In order to facilitate the installation of the push rod cylinder, a push rod cylinder seat 32011 is arranged on the inner side of the third mounting seat. The push rod cylinder seat 32011 is L-shaped. The push rod cylinder is fixed on the push rod cylinder seat 32011, and its output shaft passes through the push rod cylinder seat 32011 and is connected to the connecting block 32071.

[0128] The loading platform 33 is arranged on the movement path of the supporting area, that is, the rubber band in the supporting area can be clamped onto the stacked material trays on the loading platform to achieve packaging. The loading platform 33 includes a horizontally arranged loading platform body and a fifth drive motor 331 for driving the loading platform body to rotate horizontally, which is used to drive the loading platform body to achieve 90-degree rotation. In this embodiment, the loading platform body is rectangular, and its length and width are smaller than the length and width of the material tray. When the material trays are stacked on the loading platform body, the edge of the material tray is located outside the loading platform, and the exposed part is used to tie the rubber band. Therefore, the rubber band will not interfere with the loading platform.

[0129] The following is a brief description of the working principle of the rubber band binding mechanism;

[0130] S1. Stack the trays on the loading platform. After the detection sensor detects the trays, it triggers the binding signal.

[0131] S2, the first bracket plate 3102 moves toward the rubber band feeding station. During the movement, the two third mounting seats approach each other, and at the same time, the upper material supporting slider and the lower material supporting slider approach each other, even if the four material supporting rods approach each other, so that the distance between each two is smaller than the size of the rubber band on the rubber band rack 29, so that the material supporting rods can enter the rubber band;

[0132] S3, when the supporting rod enters the designated rubber band, the two third mounting seats move back to back, and at the same time, the upper supporting slider and the lower supporting slider move away from each other, even if the four supporting rods move away from each other, the rubber band is stretched open, so that its size is larger than that of the rubber band frame, and then separated from the rubber band frame;

[0133] S4, the first bracket plate 3102 moves in the opposite direction, toward the loading platform, until the material tray on the loading platform is located in the stretched rubber band;

[0134] S5, the two third mounting seats are close to each other, and at the same time, the upper supporting slide block and the lower supporting slide block are close to each other, that is, the four supporting rods are close to each other, so that the distance between the upper and lower parts is smaller than the thickness of the stacked material trays, and the distance between the left and right parts tends to the thickness of the material trays, and then the rubber band is hooped to the outside of the material tray. At this time, the push rod cylinder is actuated to pull out the supporting rod in the rubber band to achieve separation from the rubber band;

[0135] S6. The support rod is reset to proceed to the next rubber band tying process.

[0136] The rubber band tying mechanism adopts a slide structure with a compact structure and a long stroke. It can move between different workstations, is convenient for taking and tying materials, has high moving efficiency and good stability. A belt is used to drive the two mounting seats, which can realize the synchronous approach or distance of the two mounting seats, has good symmetry, and realizes symmetrical expansion of the rubber band, avoids the deviation of the material tray caused by uneven expansion, improves the accuracy of material tying, and has good material tying stability and high reliability. The material supporting slide block is driven by a belt and a cylinder, which can realize effective monitoring and control of the rubber band tension, and at the same time, can reduce its overall height and improve the compactness of the overall structure. The push rod cylinder is set to increase the withdrawal speed of the material supporting rod, realize rapid separation from the rubber band, and avoid shaking or deviation of the material tray caused by friction. The rubber band tying mechanism of the present invention used for material tray packaging has a compact structure, can realize automatic material taking and tying of the rubber band, has high material tying efficiency and good effect, and is suitable for batch packaging of material trays.

[0137] Bag support and packaging mechanism, see Figure 21-Figure 32 , including a packaging platform 45, a bag taking device, a bag holding device 46, a material pushing device 47, an air extraction device and a sealing device 43; wherein,

[0138] The packing platform 45 is used for packing the trays, i.e., serves as a working platform for the packing operation;

[0139] The bag taking device is used to take out the packaging bags for packaging operations, and the bag taking device includes a packaging bag placement platform 44 and a bag taking manipulator, wherein the packaging bag placement platform 44 is used to place the packaging bags, and when placed, the packaging bags are in a stacked state, and the bag taking manipulator is used to take out the packaging bags from the packaging bag placement platform and move them to the packaging platform to provide the required packaging bags for the packaging operation;

[0140] The bag support device 46 is used to support the packaging bag, thereby providing a sufficient opening for the tray to enter (packaging bag), so as to avoid the bag opening being too small to affect normal entry and cause packaging failure;

[0141] The pushing device 47 is used to push the tray to be packaged into the opened packaging bag, thereby realizing the loading of the tray;

[0142] The vacuum device is used to vacuum the packaging bag, that is, to fully exhaust the air in the packaging bag so that the packaging bag fits the surface of the internal tray to avoid bulging due to the presence of air, which will affect the subsequent storage and stacking;

[0143] The sealing device 43 is used to perform hot-melt sealing on the bag opening of the packaging bag to achieve internal sealing.

[0144] See also Figure 21-22 In order to reduce the overall volume of the equipment, reduce the occupied space, and improve compactness, in the present application, the packaging bag placing platform 44 is located directly below the packaging platform 45. At the same time, the packaging platform 44 can realize horizontal rotation, thereby realizing the opening or closing of the material taking port at the upper end of the packaging bag placing platform 44, that is, the packaging platform 44 located at the top; specifically, the packaging platform 45 includes a platform plate and a platform plate driving device. The platform plate is one or more. In the present embodiment, the platform plates are two and symmetrically arranged, which can realize horizontal rotation, that is, the rotation axis is parallel to the horizontal plane, and the two Each platform plate is in the shape of a double door, and the platform plate driving device is used to drive the platform plate to rotate horizontally to realize "opening the door" and "closing the door". When the platform plate is in a horizontal state, that is, in a "closing the door" state, it can withstand the load force, that is, items can be placed on the platform plate. At this time, a packaging platform is formed; when the platform plate is rotated to a vertical state or tending to a vertical state, an opening is formed to realize "opening the door", thereby making the upper end of the packaging bag placement platform 44 open to form a material removal window. At this time, the bag removal device can pass through the door and take out the packaging bag from the packaging bag placement platform 44.

[0145] The bag-taking robot includes a dual-axis slide 41, which can realize dual-axis (X-axis and Y-axis) movement in the horizontal direction. It is located above the packaging platform 45. A mounting seat is provided on the dual-axis slide. Under the action of the dual-axis slide, the mounting seat can also slide in the horizontal direction. A sub-mounting seat 4201 is vertically slidably provided on the mounting seat, which can realize lifting. A driving mechanism connected to the sub-mounting seat 4201 is provided on the mounting seat, which is used to drive the fourth mounting seat to lift and lower. The driving mechanism can be a cylinder or a screw nut structure. A first suction cup 4202 is installed on the sub-mounting seat 4201, and the working end of the first suction cup 4202 is vertically downward, that is, the lower end can generate suction and is used to suck the packaging bag to achieve bag taking; in this embodiment, the first There are multiple suction cups 4202, and they are arranged in a rectangular shape. In order to facilitate the discharge after packaging and improve the "grabbing" strength, in this embodiment, a discharge cylinder 4203 is vertically arranged on the auxiliary mounting seat 4201, and the output end of the discharge cylinder is arranged vertically downward. At the same time, a second suction cup 4204 is provided at the output end of the discharge cylinder 4203. The second suction cup 4204 is used to suck up the packaged material tray for conveying it to the finished product discharge station. The second suction cup 4204 is a rectangular sponge suction cup, which can absorb irregular objects and can fit the packaged material tray during suction, thereby increasing the suction strength and avoiding falling off during transportation. The second suction cup 4204 is arranged between the first suction cups 4202, that is, the first suction cup is arranged on the outer edge of the second suction cup.

[0146] See also Fig.32 In order to fully open the bag opening of the packaging bag and enable the bag-holding device to enter smoothly, in this embodiment, a third suction cup 4804 is installed at the feeding end of the packaging platform 45. The working end of the third suction cup 4804 is vertically upward. There are at least two of them and they are arranged in parallel. They can suck the lower ends of the bag opening of the packaging bag to open the bag opening in a rectangular form. The third suction cup 4804 can move vertically. When it is needed, it rises vertically and sucks the packaging bag. When the suction is completed, it descends to provide a working space for other processes (such as sealing). The third suction cup can cooperate with the first suction cup, one sucking on the top and the other sucking on the bottom, so as to fully open the bag opening of the packaging bag, provide entry space for the bag-holding device 46, and improve working reliability and stability.

[0147] See also Fig. 27The pushing device 47 includes a material placement platform 4702 and a push plate 4703. The material placement platform 4702 is used to place the material tray to be packaged. Specifically, it includes a base body, on which a horizontally arranged plate body 4701 is fixed. The plate body 4701 is a strip plate. The plate body 4701 and the packaging platform are located on the same horizontal plane. The front end of the plate body 4701 (close to one end of the packaging platform) forms the material placement platform 4702. A push rod 4704 is horizontally arranged on the plate body 4701. The length direction of the push rod is parallel to the length direction of the plate body, and it can realize axial movement, that is, it can slide horizontally in the direction close to or away from the loading platform. Therefore, it is also equipped with a driving device for driving the push rod to move axially. The driving device can be a cylinder or a belt or a screw nut assembly. A push plate 4703 is fixed to the head of the push rod. The push plate is perpendicular to the axis of the push rod and is used to push the material tray on the loading platform 4702 horizontally into the packaging bag on the packaging platform 45, thereby realizing packaging feeding.

[0148] See also Figure 25-26 The bag-holding device 46 includes a bag-holding rod, which is multiple and symmetrically arranged on both sides of the material placement platform 4702. The bag-holding rod is a rod body, and its length direction is parallel to the sliding direction of the push plate 4703, and the bag-holding rod can slide horizontally in the direction close to or away from the material placement platform 4702, that is, its sliding direction is parallel to the pushing direction of the push plate. A bag-holding area is formed between the bag-holding rods, and the bag-holding area is rectangular. The width and height of the bag-holding area are variable, so the packaging bag can be horizontally inserted and opened, that is, when insertion is required, the height and width of the bag-holding area are small, that is, the distance between two adjacent bag-holding rods is small. At this time, it can be ensured that the bag-holding rods can smoothly enter the packaging bag. After fully entering, the length and height of the bag-holding area are increased, that is, the distance between two adjacent bag-holding rods becomes larger, and they contact the inner wall of the packaging bag, and hold up the packaging bag to ensure smooth pushing (feeding).

[0149] The structure of the bag support device is described in detail below:

[0150] The bag-supporting device 46 includes a first slide 4601, a fourth mounting seat 4602 and a bag-supporting assembly. The first slide 4601 can slide horizontally, and its sliding direction is parallel to the pushing direction of the pushing device 47. At the same time, it is also equipped with a driving device for driving the first slide 4601 to slide horizontally. The driving device can be a cylinder, a belt or a screw nut assembly; the fourth mounting seat 4602 is horizontally slidably mounted on the first slide 4601, and its sliding direction is perpendicular to the sliding direction of the first slide 4601. The fourth mounting seat 4602 is two and symmetrically arranged at both ends of the first slide 4601. The two fourth mounting seats 4602 can move towards each other (approach each other) or move away from each other (move away from each other), and the pushing device 47 is located between the two fourth mounting seats 4602; specifically, in the first Two third pulleys 4603 parallel to each other are provided on a sliding seat 4601, and a third belt 4604 is provided between the two third pulleys 4603. The movement direction of the third belt 4604 is parallel to the sliding direction of the fourth mounting seat 4602. The two fourth mounting seats 4602 are respectively connected to the third belts 4604 on both sides of the third pulley 4603, and can realize synchronous movement toward each other or back to back. In this embodiment, the line connecting the two third pulleys is taken as the center line, and the conveying directions of the belts on both sides are opposite. The two fourth mounting seats are respectively connected to the belts on both sides of the center line, thereby realizing synchronous approach to or distance from each other. In order to improve the reliability and stability of operation, the above-mentioned third pulley and third belt are synchronous pulleys and synchronous belts to improve the synchronization of the sliding of the fourth mounting seat.

[0151] The bag supporting assembly is mounted on the fourth mounting seat 4602, and includes a fixed sliding block and a movable sliding block 4605, wherein the fixed sliding block is fixed on the fourth mounting seat, and the movable sliding block 4605 is vertically slidably mounted on the fourth mounting seat, and is located directly above the fixed sliding block, and achieves approach or distance from the fixed sliding block by up and down movement, and bag supporting rods are installed on both the fixed sliding block and the movable sliding block, and the bag supporting rods face the packaging platform, and their length direction is parallel to the sliding direction of the first sliding seat 4601; in this embodiment, a lower bag supporting rod 4606 is fixed on the fixed sliding block, and the cross-section of the lower bag supporting rod 4606 is L-shaped, and its lower end is horizontal and forms a supporting portion, and the upper surface of the supporting portion forms a supporting surface, which is used for the lower bottom surface of the material tray to contact with the supporting surface when pushing the material, so as to avoid direct contact with the packaging bag and ensure the smoothness of feeding; in order to avoid collision caused by contact between the material tray and the end of the supporting surface when feeding, this embodiment In the embodiment, the feeding end of the support part is tilted and bent downward to form a guide part, which is an inclined plane with an inclination angle of 10 degrees to 30 degrees. The side wall of the lower bag supporting rod is used to limit the feeding of the material tray to prevent it from sliding left and right, thereby improving the feeding accuracy. The above structure greatly improves the smoothness of the material tray entering the packaging bag, avoids friction with the packaging bag during the feeding process and affects the normal feeding, and even damages the packaging bag, thereby improving the reliability and stability of the feeding. That is, the lower bag supporting rod 4606 is used to hold the bag open on the one hand, and to provide guidance for the entry of the material tray on the other hand to avoid frictional contact with the inner wall of the packaging bag; an upper bag supporting rod 46051 is provided on the side wall of the movable slider, and the upper bag supporting rod 46051 is mainly used to move upward and hold the packaging bag open upward, thereby providing sufficient space height for the feeding of the material tray, so that the material tray can smoothly enter the packaging bag.

[0152] In order to ensure the accuracy of feeding and pushing materials, a material guide plate 4611 is fixed on the inner side of the fourth mounting seat 4602. The material guide plate 4611 is vertically arranged and flush with the side wall of the lower bag supporting rod, that is, it is located on the same vertical plane, so that the material tray can move smoothly between the two upper bag supporting rods and then enter the packaging bag. A material guide area is formed between the two material guide plates 4611; the feeding end of the material guide plate 4611 is bent outward by 10 degrees to 30 degrees to form an inclined guide portion, which can enable the material tray on the material placement table to smoothly enter the material guide area.

[0153] Two fourth pulleys 4607 are arranged in parallel on the fourth mounting seat 4602, and a fourth belt 4608 is arranged between the two fourth pulleys 4607. The movement direction of the fourth belt 4608 is parallel to the sliding direction of the movable slider 4605. The movable slider 4605 is connected to the fourth belt 4608 and can realize vertical sliding, thereby realizing the control of the height of the bag supporting area. The above-mentioned fourth pulley and fourth belt are synchronous pulleys and synchronous belts, which can improve the operation accuracy and avoid the occurrence of slipping.

[0154] See also Fig.25The vacuum device includes a vacuum pipe 4610 which is arranged on the side wall of the fourth mounting seat 4602 and can slide horizontally. Specifically, an air pipe slide 4609 is provided on the side wall of the outer side of the fourth mounting seat. The air pipe slide 4609 is located between the upper bag supporting rod 46051 and the lower bag supporting rod 4606, and can slide horizontally. The length direction and sliding direction of the vacuum pipe 4610 are parallel to the sliding direction of the first slide 4601. A cylinder for driving the vacuum pipe 4610 to slide horizontally is provided on the fourth mounting seat, so that the vacuum pipe enters the packaging bag and realizes vacuuming. The tail end of the vacuum pipe is connected to a vacuum device; in this embodiment, the vacuum pipe 4610 is a rigid tube, which can be a metal tube or a high-strength plastic rod, which can flatten the bag mouth of the packaging bag when the fourth mounting seat 4602 slides, ensure the flatness of the bag mouth during packaging (heat sealing), and improve the packaging quality.

[0155] See also Fig.30 The sealing device 43 includes an upper pressing plate 4301 and a lower pressing plate 4801, wherein the upper pressing plate is vertically slidably mounted above the feeding end of the packaging platform 45, and the lower pressing plate 4801 is vertically slidably mounted below the feeding end. When working, the two are located on the same vertical plane. The upper pressing plate 4301 and the lower pressing plate 4801 are both strip-shaped and horizontal, and their length direction is perpendicular to the pushing direction of the pushing device 47. A heat sealing knife 4302 and an upper sealing strip 4302 are provided at the lower end of the upper pressing plate 4301. 303, the top of the lower pressing plate 4801 can contact the heat sealing knife 4302 and the upper sealing strip 4303, thereby achieving heat sealing and sealing. In the present application, the lower pressing plate is vertically slidably arranged between the material placement table and the packaging platform through the guide rod 4802, and a driving device 4803 for driving the lower pressing plate to rise and fall is provided. The driving device can be a belt, a cylinder or a screw nut assembly. When it is in the lower limit position, the lower pressing plate is located below the packaging workbench. At this time, it will not block the pushing and packaging process. When it is in the upper limit position, it is used to seal and hot-melt the packaging bag; in order to improve the compactness of the structure and reduce the installation space at the same time, in the present application, a bag suction cylinder 4805 is fixed at the lower end of the lower pressing plate 4801. The bag suction cylinder 4805 is vertically arranged, and its output end is arranged upward. A mounting plate 4806 is provided at its output end, and a third suction cup 4804 arranged upward is fixed on the mounting plate 4806. 1 is provided with a hole 48010 for accommodating the third suction cup 4804 to pass through, and the hole 48010 through which the third suction cup 4804 passes extends upward to the upper end of the lower pressing plate 4801, at this time, the distance from the bag opening of the packaging bag can be reduced, and the lower bag opening of the packaging bag can be sucked to fully open the bag opening of the packaging bag; after the packaging bag is sucked, it is reset, and at this time, the third suction cup is located in the hole, that is, the top of the third suction cup is lower than the top surface of the lower pressing plate, so that the hot melting and sealing process can be carried out.

[0156] The heat sealing knife 4302 and the upper sealing strip 4303 are respectively slid vertically on the lower end of the upper pressing plate 4301 through the guide rod. At the same time, an elastic component is provided on the lower pressing plate 4301. The elastic component is a spring, which can make the heat sealing knife 4302 and the upper sealing strip 4303 have a downward movement tendency respectively, so as to achieve elastic contact with the lower pressing plate, and at the same time improve the sealing and heat sealing effect; in this embodiment, when it is located at the lower limit position, that is, under the action of their respective elastic forces, the lower sealing surface height of the upper sealing strip 4303 is lower than the heat sealing surface height of the heat sealing knife 4302. Therefore, the upper sealing strip can first contact with the lower pressing plate to achieve sealing and fixation of the packaging bag, and then the heat sealing knife 4303 contacts with the lower pressing plate to achieve heat sealing.

[0157] In order to improve the compactness of the structure, reduce the difficulty and cost of production, and avoid collisions during movement, in this embodiment, the upper pressure plate 4301 and the bag-taking robot are arranged on the same base body, and they share a dual-axis slide. Therefore, when moving, the upper pressure plate and the bag-taking robot can achieve synchronous movement, with high compactness of the structure, low manufacturing cost, and safe and reliable operation.

[0158] The above-mentioned material tray bag supporting and packaging mechanism adopts a vertical structure, so that the packaging bag placing platform is located directly below the packaging platform, which reduces the installation space and improves the compactness of the structure. At the same time, it reduces the moving path of the packaging bag to take materials, reduces the idle travel time, and improves work efficiency; the upper and lower multi-suction cup structures are adopted, which can make the bag mouth fully open, ensure the smooth entry of the bag supporting mechanism, and improve the reliability and stability of the bag supporting; the movable bag supporting structure is adopted, which can fully unfold the packaging bag, provide entry space for pushing materials, ensure smooth pushing of materials, and have good operational reliability and stability; the lower end bag supporting rod adopts an L-shaped structure, one side One side is used to hold open the bag, and the other side is used to provide guidance for the entry of the material tray to avoid friction and contact between the material tray and the inner wall of the packaging bag, thereby ensuring that the material tray enters the packaging bag smoothly and stably; a telescopic exhaust pipe structure is provided, which can vacuum the packaging bag and flatten the packaging bag mouth at the same time, thereby ensuring the quality of subsequent sealing and heat sealing, and avoiding folding of the packaging bag mouth and affecting the sealing and hot melting effects; the material tray bag holding and packaging mechanism of the present invention can realize automatic loading of packaging bags, automatic feeding of material trays, automatic sealing, hot melting and discharging, and has reliable and stable operation, high packaging efficiency and good effect, and a wide range of applications.

[0159] The material tray discharging and packaging system of the present invention can realize automatic loading, bundling, bagging, vacuuming, sealing and unloading of rubber bands, can realize rapid packaging of material trays, has a high degree of automation, high packaging efficiency and quality, and has a compact structure, a small installation space, and reliable and stable operation.

[0160] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A tray discharging and packaging system, characterized in that: include: The frame 1 is used as a support and mounting carrier, and the frame 1 is provided with a rubber band feeding station, a rubber band tying station, a bag holding and packing station, and a material unloading station; The rubber band feeding mechanism 2 is arranged on the rubber band feeding station and is used to provide rubber bands for binding the material tray; The rubber band tying mechanism 3 is arranged on the rubber band tying station and is used to tie the rubber band to the stacked material trays; The bag-stretching and packaging mechanism 4 is arranged at the bag-stretching and packaging station, and is used to put the bundled material trays into the packaging bags and seal and package them; The material transfer robot is used to move the material tray from the rubber band tying station to the bagging and packaging station, and from the bagging and packaging station to the material unloading station.

2. The tray discharging and packaging system according to claim 1, characterized in that: It also includes a labeling mechanism 7, which includes a label printer arranged below the frame 1, and a labeling robot arranged above the frame 1 and used to obtain the label on the label printer and attach it to the material tray after the rubber band is tied. The frame 1 is provided with a working hole for the labeling robot to pass through to obtain the label, and the working hole is located between the rubber band tying station and the bag stretching and packaging station.

3. The tray discharging and packaging system according to claim 1, characterized in that: The labeling robot and the material transfer robot are arranged on the same slide and can slide horizontally synchronously; the labeling robot includes a support rod 71 that can realize vertical lifting, and a rotating cylinder 72 is fixed to the bottom of the support rod 71, and a labeling seat 73 is fixed to the lower output end of the rotating cylinder 72, and can drive the labeling seat 73 to rotate horizontally, and the lower surface of the labeling seat 73 is a plane and serves as a working surface, and a plurality of air holes 730 connected to the air source and capable of generating negative pressure and used to absorb labels are opened on the working surface.

4. The tray discharging and packaging system according to claim 1, characterized in that: The upper end of the frame 1 is horizontally slidably equipped with a beam bracket 52, and the sliding direction of the beam bracket 52 is perpendicular to the line connecting the rubber band tying station and the bag supporting and packaging station. Both sides of the beam bracket 52 are horizontally slidably equipped with a first slide and a second slide along the length direction. The material transfer robot is arranged on the first slide, the bag taking device on the bag supporting and packaging mechanism is arranged on the second slide, and the sealing device on the bag supporting and packaging mechanism is arranged at the bottom of the beam bracket 52.

5. The tray discharging and packaging system according to claim 1, characterized in that: The rubber band feeding mechanism comprises: The rubber band feeding device comprises a first rotating disk capable of realizing horizontal rotation, a rubber band rack is placed above the first rotating disk, and the rubber band rack is multiple and evenly distributed in the circumferential direction; The rubber band loading device is arranged directly above the rubber band feeding device, and is used to move the rubber band rack on the rubber band feeding device to the rubber band binding station. It includes a first mounting seat, on which a swivel seat is rotatably mounted, and the rotation axis of the swivel seat is parallel to the horizontal plane. The first mounting seat is provided with a first driving mechanism for driving the swivel seat to rotate, and the end of the swivel seat is slidably equipped with a second mounting seat, and the sliding direction of the second mounting seat is perpendicular to the rotation axis of the swivel seat. The swivel seat is provided with a second driving device connected to the second mounting seat and used to drive it to slide to achieve telescoping, and the end of the second mounting seat is provided with a clamping device that can clamp the rubber band rack.

6. The tray discharging and packaging system according to claim 1, characterized in that: The rubber band tying mechanism comprises: A first horizontal slide, wherein the first horizontal slide is horizontally slidably provided with a first bracket plate; A third mounting seat is horizontally slidably mounted on the first bracket plate, wherein the sliding direction of the third mounting seat is perpendicular to the sliding direction of the first bracket plate, and the third mounting seats are two and symmetrically arranged, and the two third mounting seats can realize opposite movement or opposite movement; A material supporting assembly, comprising a material supporting slider vertically slidably mounted on the third mounting seat, each of the third mounting seats being provided with two material supporting sliders, and the two material supporting sliders being able to move toward each other or move away from each other, a material supporting rod parallel to the sliding direction of the first bracket plate being provided on the inner side of the material supporting slider, and a material supporting area capable of accommodating a rubber band to be inserted and stretched out being formed between the material supporting rods; The loading platform is arranged on the moving path of the material supporting area and is used for placing the material trays to be packaged.

7. The tray discharging and packaging system according to claim 1, characterized in that: The bag-supporting and packaging mechanism comprises: The packaging platform 45 is used for packaging the trays; A bag taking device, comprising a packaging bag placing platform 44 for placing packaging bags and a bag taking robot for moving packaging bags on the packaging bag placing platform 44 to a packaging platform; A bag-opening device 46, used for opening the packaging bag; A pushing device 47, used to push the tray to be packaged into the opened packaging bag; A vacuum device, used to vacuum the packaging bag; The sealing device 43 is used to perform hot-melt sealing on the packaging bag.

8. The tray discharging and packaging system according to claim 1, characterized in that: The packaging bag placement platform 44 is located directly below the packaging platform 45 . The packaging platform 44 can realize horizontal rotation and realize opening or closing of the material taking port at the upper end of the packaging bag placement platform 44 .

9. The tray discharging and packaging system according to claim 1, characterized in that: The bag-supporting device 46 comprises: The first slide 4601 can slide horizontally, and its sliding direction is parallel to the pushing direction of the pushing device 47; The fourth mounting seat 4602 is horizontally slidably mounted on the first slide seat 4601. The sliding direction of the fourth mounting seat 4602 is perpendicular to the sliding direction of the first slide seat 4601. There are two fourth mounting seats 4602 and they are symmetrically arranged. The two fourth mounting seats 4602 can move towards each other or move away from each other. The pushing device 47 is located between the two fourth mounting seats 4602. The bag-supporting assembly is mounted on the fourth mounting seat 4602, and includes a fixed sliding block and a movable sliding block 4605 vertically slidably mounted on the upper end of the fixed sliding block. Bag-supporting rods are mounted on both the fixed sliding block and the movable sliding block, and the length direction of the bag-supporting rods is parallel to the sliding direction of the first sliding seat 4601.

10. The tray discharging and packaging system according to claim 1, characterized in that: The exhaust device includes an exhaust pipe 4610 which is arranged on the side wall of the fourth mounting seat 4602 and can slide horizontally. The length direction and sliding direction of the exhaust pipe 4610 are parallel to the sliding direction of the first sliding seat 4601.

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