A packaging machine capable of secondary metering and feeding

Abstract

The present application discloses a packaging machine capable of secondary metering and replenishing materials, which belongs to the technical field of packaging equipment, and comprises a first conveyor belt, a bag feeding mechanism, a second conveyor belt and a filling mechanism. A bag feeding mechanism is arranged on one side of the first conveyor belt, and the first conveyor belt is used to transport the packaging bags to one side of the bag feeding mechanism. A second conveyor belt is arranged on one side of the bag feeding mechanism, and one end of the second conveyor belt is close to the bag feeding mechanism. The beneficial effects of the present application are as follows: through the design of the clamping mechanism, stable fixation of the packaging bags is achieved, and tipping or displacement of the packaging bags during the filling process is avoided. Through the telescopic action of the first cylinder, the clamping suction cup can firmly clamp the packaging bags to ensure that they remain stable during the filling and metering processes, reduce the risks of material leakage and damage to the packaging bags, and improve the stability and safety of the packaging process, thereby improving the packaging quality and production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of packaging equipment, and in particular to a packaging machine capable of secondary metering and replenishing materials. Background Art

[0002] In the modern industrial production process, packaging machines are often seen. They are an important tool for packaging manufactured products, making them more convenient in subsequent storage and transportation. Currently, the fully automatic packaging machines on the market will first use the bag delivery device to transport the packaging bags to the packaging position, and then transfer them to the bottom of the unloading mechanism. Finally, after the packaging is completed, the packaging bags will be transported away to complete the packaging process. However, in the unloading stage, my country's automatic packaging machines often install pressure sensors at the bottom of the unloading equipment to detect weight;

[0003] For example, the patent application 202310231299.0 proposes a packaging machine and a feeding method with a secondary feeding function. Although it can perform a secondary feeding operation, after unloading, the packaging bag is only transported by a conveying mechanism without positioning support. Moreover, when weighing, two weighing mechanisms are set to complete precise unloading. Such a complicated unloading weighing process and program design reduce the packaging efficiency of the packaging machine. Summary of the invention

[0004] One of the purposes of the present application is to provide a packaging machine capable of secondary metering and material replenishment to solve the problem that the existing device has no positioning support and needs to weigh the material inside the bag multiple times, resulting in reduced efficiency.

[0005] To achieve the above purpose, the technical solution adopted in the present application is: a packaging machine capable of secondary metering and replenishing, comprising a first conveyor belt, a bag feeding mechanism, a second conveyor belt and a filling mechanism, a bag feeding mechanism is arranged on one side of the first conveyor belt, the first conveyor belt is used to convey the packaging bag to one side of the bag feeding mechanism, a second conveyor belt is arranged on one side of the bag feeding mechanism, one end of the second conveyor belt is close to the bag feeding mechanism, and the other end of the second conveyor belt is close to the detection mechanism, the detection mechanism is used to detect the weight of the material, the detection mechanism is connected to the second conveyor belt support frame by bolts, a clamping mechanism is arranged above the second conveyor belt, the clamping mechanism is used to clamp the packaging bag for horizontal movement, a filling mechanism is arranged above the detection mechanism, the filling mechanism is used to fill the inside of the packaging bag, and the inside of the filling mechanism is connected with the discharge mechanism, the discharge mechanism is installed above the filling mechanism by bolts, and the bottom of the discharge mechanism is supported on the ground by a column, a third conveyor belt is fixedly installed at the other end of the detection mechanism, the third conveyor belt is used to output the packaging bag after filling, an exhaust mechanism is fixedly installed above the third conveyor belt, and the exhaust mechanism is used to exhaust the air inside the packaging bag.

[0006] Preferably, the bag feeding mechanism includes a first electric slider and a first slide rail, the top of the first slide rail is slidably connected to the first electric slider, a first motor is installed on the top of one end of the first electric slider by bolts, a first gear is mounted on the outside of the output end of the first motor, the first gear is meshed with the second gear, and the second gear is mounted on one end of the first rotating shaft, the first rotating shaft is inserted into the first slider, and its surface is in sliding contact with the inside of the first electric slider, the other end of the first rotating shaft is welded to the bottom end of the L-shaped rotating arm, the first gear is driven to rotate by the first motor, the first gear can drive the second gear to rotate, and then the second gear drives the rotating arm to rotate, and when the rotating arm rotates, the suction cup on one end surface can adsorb the packaging bag on the surface of the first conveyor belt, so that the packaging bag can stand up under the action of the rotating arm, and then the packaging bag is driven to move by the first electric slider to move into the clamping mechanism.

[0007] Preferably, the maximum rotation angle of the rotating arm is ninety degrees, and a plurality of suction cups are distributed on the surface of the rotating arm in a straight line and at equal intervals, and the suction cups are connected to the air pump inside the housing of the first electric slider through a hose.

[0008] Preferably, the clamping mechanism includes a second slide rail, the second slide rail is fixedly installed on both sides of the second conveyor belt by bolts, and a second electric slider is installed on the top of the second slide rail, a first cylinder is installed on the top of the second electric slider, a connecting frame is mounted on the outside of the telescopic end of the first cylinder, one end of the top of the connecting frame extends inwardly and is equipped with a clamping suction cup, two first sliding rods are welded on one side of the connecting frame, the first sliding rods are slidably connected to the inside of the second electric slider, and extend through the telescopic end of the first cylinder, so that the two clamping suction cups can clamp the packaging bag, and the suction cups on the surface of the clamping suction cups can adsorb the packaging bag, and then the packaging bag is driven to move by the second electric slider, so that the packaging bag can move to the bottom of the filling mechanism, and the first cylinder is contracted to open the packaging bag mouth.

[0009] Preferably, the detection mechanism includes a conveyor platform, the top of which is provided with transmission shafts distributed in a straight line at equal intervals, and the transmission shafts are connected to each other through belt drive, and the transmission shafts are connected to the inside of the conveyor platform through transmission, and the first pressure sensors are installed at the four ends of the bottom of the conveyor platform, and the bottom of the first pressure sensor is fixedly installed on the base, when the packaging bag moves to the bottom of the filling mechanism, its bottom will contact the transmission shaft, and then when the packaging bag is filled, the transmission shaft will move downward due to the weight, and then the first pressure sensor will be used to detect whether the material inside the packaging bag reaches the weight, and after the weight is qualified, it will be transported to the third conveyor belt through the transmission shaft.

[0010] Preferably, the filling mechanism includes a cut-off mechanism and a metering mechanism, both of which are fixedly installed at the bottom of the discharge mechanism, and the cut-off mechanism includes a second cylinder, two of which are provided, and a second telescopic plate and a first telescopic plate are installed outside the telescopic ends of the two second cylinders, and the second telescopic plate and the first telescopic plate are both in sliding contact with the inside of the discharge pipe; and a partition is fixedly installed in the middle of the discharge pipe, and the inside of the discharge pipe is divided into two channels by the partition, when the material inside the discharge mechanism falls into the discharge pipe, the second support plate inside the discharge pipe will intercept the material, and then the material will accumulate on the second support plate, and the second pressure sensor at the bottom of the second support plate can sense the material on the top The material is weighed, and when the material reaches the specified weight, the second cylinder will contract, so that the second support plate can be moved out of the discharge pipe, so that the material in the discharge pipe can fall into the packaging bag below, and its weight is further detected by the first pressure sensor. When there is an error in the weight and material needs to be replenished, the discharge mechanism will transport the material to the top of the first support plate, and the first support plate will perform a secondary measurement of the replenishment weight through the second pressure sensor at the bottom. After the weight of the material is qualified after the secondary measurement, the second cylinder will contract, so that the replenishment can fall into the packaging bag below, so that the device can perform secondary measurement at the same workstation, thereby improving the replenishment efficiency of the device, shortening the process flow, and helping to improve packaging efficiency.

[0011] Preferably, the metering mechanism includes a second pressure sensor, a first pallet and a second pallet, the second pressure sensor is respectively installed on the top of the second telescopic plate and the first telescopic plate, and the first pallet and the second pallet are fixedly installed on the top of the two pressure sensors, the top surfaces of the first pallet and the second pallet are in sliding contact with the discharge pipe, the two second pressure sensors are respectively connected to the external controller data, and the external controller is connected to the first pressure sensor data.

[0012] Preferably, the discharging mechanism includes a silo, a top cover is hinged on the top of the silo, two discharge ports are arranged at the bottom of the silo, and the two discharge ports are respectively connected to the inside of the first feeding pipe and the second feeding pipe, the inner diameter of the first feeding pipe is larger than that of the second feeding pipe, a first auger is arranged inside the first feeding pipe, and the first auger is mounted on the outside of the output end of the third motor, a second auger is arranged inside the second feeding pipe, and the second auger is mounted on the outside of the output end of the second motor, the first feeding pipe and the second feeding pipe are respectively connected to two channels inside the discharge cavity, and the two channels inside the discharge cavity are respectively connected to the internal channel of the discharge pipe, the first auger is driven to rotate by the second motor, so that the first auger can transport the material inside the silo to the second tray, and when secondary metering and replenishing is required, the second auger is driven to rotate by the third motor, so that the second auger can transport the material inside the silo to the top of the first tray.

[0013] Preferably, the exhaust mechanism includes a bag clamping mechanism and an air-expelling mechanism, both of which are fixed by a gantry, the bottom of the gantry is welded to the top of the second slide rail, the bag clamping mechanism is provided with two groups, and the bag clamping mechanism includes a third cylinder, both sides of the third cylinder are rotatably connected to one end of the top of the clamping arm, and the clamping arm is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the telescopic end of the third cylinder. When the internal weight of the packaging bag is qualified, the telescopic end of the first cylinder will extend to push the clamping suction cup to clamp the bag opening, so that the second electric slider can move synchronously with the packaging bag to the surface of the third conveyor belt, and then the telescopic end of the third cylinder is contracted, and the two clamping arms can be driven by the connecting rod to clamp the bag opening of the packaging bag, so that the packaging bag can be fixed on the surface of the third conveyor belt.

[0014] Preferably, the air-expelling mechanism comprises a driving motor, a first bevel gear is externally mounted on an output end of the driving motor, both sides of the first bevel gear are meshed with the second bevel gear, the second bevel gear is mounted on the outside of a transmission screw, the middle of the transmission screw is rotatably connected to the gantry, and two threads in opposite directions are arranged at both ends of the transmission screw, the two ends of the transmission screw are threadedly connected to the lifting frame, two electric telescopic rods are embedded inside the two ends of the lifting frame, and an air-expelling roller is installed at the bottom telescopic end of the electric telescopic rod, two air-expelling rollers are arranged, and are symmetrically distributed with each other, the electric telescopic rod extends downward, so that the air-expelling rollers can be located on both sides of the packaging bag, the first bevel gear and the second bevel gear are driven to rotate by the driving motor, and then the transmission screw is driven to rotate, so that the two lifting frames can move relatively, the two air-expelling rollers will clamp the packaging bag, and the two air-expelling rollers are driven to move upward by the contraction of the electric telescopic rod, so that the air inside the packaging bag can be fully discharged.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] (1) Through the design of the clamping mechanism, the packaging bag is stably fixed, avoiding the tipping or displacement of the packaging bag during the filling process. The clamping mechanism includes a second slide rail and a second electric slider, wherein a first cylinder is installed on the top of the second electric slider, and a connecting frame is mounted on the outside of the telescopic end of the first cylinder, and a clamping suction cup is installed on the top of the connecting frame. Through the telescopic action of the first cylinder, the clamping suction cup can firmly clamp the packaging bag to ensure that it remains stable during the filling and metering process. This design prevents the packaging bag from shifting due to increased weight or vibration of the conveyor belt during filling, reduces the risk of material leakage and damage to the packaging bag, improves the stability and safety of the packaging process, and thus improves packaging quality and production efficiency.

[0017] (2) The fully automatic packaging machine of the present invention realizes accurate metering and secondary replenishment of materials at the same workstation through the coordinated work of the filling mechanism and the discharging mechanism. The filling mechanism contains a cut-off mechanism and a metering mechanism. The cut-off mechanism is controlled by the second cylinder. The second telescopic plate outside the telescopic end and the first telescopic plate are in sliding contact with the inside of the discharge pipe to realize the interception and control of the material. The metering mechanism accurately measures the weight of the material through the second pressure sensor, the first pallet and the second pallet. When the weight of the material does not reach the predetermined value, the discharging mechanism can transport the material to the top of the first pallet for secondary metering and replenishment to ensure that the weight of each bag of material is accurate. This secondary metering and replenishment mechanism performed at the same workstation not only improves the efficiency and accuracy of replenishment, but also shortens the entire packaging process and reduces the time waste caused by multiple weighing and adjustments, thereby significantly improving the work efficiency and packaging quality of the packaging line.

[0018] (2) The air-expelling mechanism equipped in the fully automatic packaging machine of the present invention can effectively remove the air inside the packaging bag through the synergistic effect of the bag clamping mechanism and the air-expelling mechanism. The air-expelling mechanism includes a driving motor, the output end of which is externally provided with a first bevel gear, which meshes with a second bevel gear, and drives the transmission screw to rotate, so that the electric telescopic rod on the lifting frame moves relatively, thereby driving the air-expelling roller to clamp and move, squeeze the packaging bag to remove the internal air. This design not only improves the sealing performance of the packaging bag, avoids the transportation and storage problems caused by the air in the bag, but also ensures the beautiful appearance of the packaging bag and the freshness of the material, thereby enhancing the market competitiveness of the product. Through the automated air-expelling operation, manual intervention is reduced, and production efficiency and packaging quality are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0021] Figure 3 It is a schematic diagram of the back structure of the present invention.

[0022] Figure 4 For the present invention Figure 3 Enlarged structural diagram at B in the middle.

[0023] Figure 5 It is a schematic diagram of the top view structure of the present invention.

[0024] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point C in the middle.

[0025] Figure 7 It is a schematic diagram of the structure of the discharging mechanism of the present invention.

[0026] Figure 8 This is a schematic diagram of the second motor structure of the present invention.

[0027] Fig. 9 It is a schematic diagram of the first auger structure of the present invention.

[0028] Fig.10 It is a schematic diagram of the partition structure of the present invention.

[0029] Fig.11 It is a schematic diagram of the structure of the second pressure sensor of the present invention.

[0030] Fig.12 It is a schematic diagram of the exhaust mechanism structure of the present invention.

[0031] Fig.13 It is a schematic diagram of the transmission screw structure of the present invention.

[0032] In the figure: 1, first conveyor belt; 2, bag feeding mechanism; 201, rotating arm; 202, first electric slider; 203, first motor; 204, first gear; 205, second gear; 206, first rotating shaft; 207, first slide rail; 3, clamping mechanism; 301, second electric slider; 302, second slide rail; 303, first cylinder; 304, first slide bar; 305, connecting frame; 306, clamping suction cup; 4, second conveyor belt; 5, detection mechanism; 501, transmission shaft; 502, conveying platform; 503, first pressure sensor; 504, base; 6, filling mechanism; 601, discharge pipe; 602, partition; 603, first support plate; 604, second support plate; 605, first support plate; 606, second support plate; 607, first support plate; 608, first support plate; 609, second support plate; 610, first support plate; 611, first support plate; 612, second support plate; 613, first support plate; 614, second support plate; 615, first support plate; 616, first support plate; 617, first support plate; 618, first support plate; 619, first support plate; 620, first support plate; 621, first support plate; 622, second support plate; 623, first support plate; 624, second support plate; 630, first support plate; 631, first support plate; 632, second support plate; 633, first support plate; 634, second support plate; 635, first support plate; 636, first support plate; 637, first support plate; 638, first support plate; 639, second support plate; 640, first support plate; 641, first support plate 05, second cylinder; 606, second pressure sensor; 607, first telescopic plate; 608, second telescopic plate; 7, discharging mechanism; 701, top cover; 702, silo; 703, second motor; 704, third motor; 705, first auger; 706, second auger; 707, first feeding pipe; 708, second feeding pipe; 709, discharging cavity; 8, third conveyor belt; 9, exhaust mechanism; 901, gantry; 902, first bevel gear; 903, drive motor; 904, second bevel gear; 905, transmission screw; 906, third cylinder; 907, clamping arm; 908, connecting rod; 909, air-repelling roller; 910, electric telescopic rod; 911, lifting frame. DETAILED DESCRIPTION

[0033] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0034] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present application.

[0035] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0036] One of the preferred embodiments of the present application is as follows: Figures 1 to 11As shown, a packaging machine capable of secondary metering and replenishing includes a first conveyor belt 1, a bag feeding mechanism 2, a second conveyor belt 4 and a filling mechanism 6. The bag feeding mechanism 2 is arranged on one side of the first conveyor belt 1, and the first conveyor belt 1 is used to convey the packaging bag to the side of the bag feeding mechanism 2. The second conveyor belt 4 is arranged on one side of the bag feeding mechanism 2. One end of the second conveyor belt 4 is close to the bag feeding mechanism 2, and the other end of the second conveyor belt 4 is close to the detection mechanism 5. The detection mechanism 5 is used to detect the weight of the material. The detection mechanism 5 is connected to the support frame of the second conveyor belt 4 by bolts. A clamping mechanism 3 is arranged above the second conveyor belt 4. The clamping mechanism 3 is used to clamp the packaging bag for horizontal movement. A filling mechanism 6 is arranged above the detection mechanism 5. The filling mechanism 6 is used to fill the inside of the packaging bag, and the filling The inside of the mechanism 6 is connected with the discharge mechanism 7, and the discharge mechanism 7 is installed above the filling mechanism 6 by bolts, and the bottom of the discharge mechanism 7 is supported on the ground by a column. The other end of the detection mechanism 5 is fixedly installed with a third conveyor belt 8, and the third conveyor belt 8 is used to output the packaging bags after filling. An exhaust mechanism 9 is fixedly installed above the third conveyor belt 8, and the exhaust mechanism 9 is used to exhaust the air inside the packaging bag; the bag feeding mechanism 2 includes a first electric slider 202 and a first slide rail 207, the top of the first slide rail 207 is slidably connected to the first electric slider 202, and the top of one end of the first electric slider 202 is installed with a first motor 203 by bolts, and the output end of the first motor 203 is externally sleeved with a first gear 204, and the first gear 204 is meshed with the second gear 205, and The second gear 205 is sleeved on one end of the first rotating shaft 206, and the first rotating shaft 206 is inserted into the inside of the first slider, and its surface is in sliding contact with the inside of the first electric slider 202. The other end of the first rotating shaft 206 is welded to the bottom end of the L-shaped rotating arm 201. The maximum rotation angle of the rotating arm 201 is ninety degrees, and a plurality of suction cups are distributed on the surface of the rotating arm 201 in a straight line and at equal intervals, and the suction cups are connected to the air pump inside the shell of the first electric slider 202 through a hose; the clamping mechanism 3 includes a second slide rail 302, and the second slide rail 302 is fixedly installed on both sides of the second conveyor belt 4 by bolts, and a second electric slider 301 is installed on the top of the second slide rail 302, and a first cylinder 303 is installed on the top of the second electric slider 301, and the first cylinder 303 extends A connecting frame 305 is mounted on the outside of the contracted end. One end of the top of the connecting frame 305 extends inward and is equipped with a clamping suction cup 306. Two first slide bars 304 are welded on one side of the connecting frame 305. The first slide bars 304 are slidably connected to the inside of the second electric slider 301. First, the bag feeding mechanism 2 utilizes the sliding of the first electric slider 202 along the first slide rail 207, and cooperates with the meshing rotation of the first gear 204 and the second gear 205 driven by the first motor 203 to drive the L-shaped rotating arm 201 to rotate to a maximum of ninety degrees; multiple suction cups distributed on the surface of the rotating arm 201 are connected to the air pump inside the first electric slider 202 through a hose, which can absorb and stand up the packaging bags on the first conveyor belt 1, so as to realize the uprightness of the packaging bags and transfer them to the clamping mechanism 3;The clamping mechanism 3 achieves stable clamping and horizontal movement of the packaging bag through the cooperation of the second slide rail 302 and the second electric slider 301, as well as the telescopic action of the first cylinder 303; the clamping suction cup 306 on the connecting frame 305 and the first slide bars 304 on both sides work together to ensure the stability of the packaging bag during movement, avoid displacement caused by weight increase or conveyor belt vibration, and reduce the risk of material leakage and packaging bag damage; when the packaging bag moves to the bottom of the filling mechanism 6, the detection mechanism 5 detects the weight of the material inside the packaging bag through the first pressure sensor 503; the bottom of the packaging bag contacts the transmission shaft 501, and the filling process The weight of the material during the process causes the transmission shaft 501 to move, and the first pressure sensor 503 detects whether the material weight meets the standard; if it meets the standard, the packaging bag is conveyed to the third conveyor belt 8 through the transmission shaft 501 to complete the filling process; during the entire operation, the precise control of the first cylinder 303 keeps the packaging bag stable during the filling and metering process, improving the stability and safety of the packaging process, thereby improving the packaging quality and production efficiency; this design not only ensures the accuracy and consistency of packaging, but also improves the automation level of the production line, reduces manual intervention, reduces production costs, and improves overall production efficiency. ;

[0037] One of the preferred embodiments of the present application is as follows: Figures 1 to 11As shown, a packaging machine capable of secondary metering and replenishing materials, the detection mechanism 5 includes a conveying platform 502, the top of the conveying platform 502 is linearly and evenly spaced with transmission shafts 501, and the transmission shafts 501 are connected to each other through belt transmission, and the transmission shafts 501 are connected to the internal transmission of the conveying platform 502, the four ends of the bottom of the conveying platform 502 are installed with first pressure sensors 503, the bottom of the first pressure sensor 503 is fixedly installed with a base 504, the filling mechanism 6 includes a cut-off mechanism and a metering mechanism, the cut-off mechanism and the metering mechanism are fixedly installed at the bottom of the discharge mechanism 7, the cut-off mechanism includes a second cylinder 605, two second cylinders 605 are provided, and the second telescopic plates 608 and the first telescopic plates 609 are installed on the outside of the telescopic ends of the two second cylinders 605. A telescopic plate 607, a second telescopic plate 608 and a first telescopic plate 607 are all in sliding contact with the inside of the discharge pipe 601; and a partition 602 is fixedly installed in the middle of the discharge pipe 601, and the inside of the discharge pipe 601 is divided into two channels by the partition 602. The metering mechanism includes a second pressure sensor 606, a first support plate 603 and a second support plate 604. The second pressure sensor 606 is respectively installed on the top of the second telescopic plate 608 and the first telescopic plate 607, and the first support plate 603 and the second support plate 604 are fixedly installed on the top of the two pressure sensors. The top surfaces of the first support plate 603 and the second support plate 604 are in sliding contact with the discharge pipe 601. The discharge mechanism 7 includes a silo 702, and a top cover 70 is hinged on the top of the silo 702. 1. Two discharge ports are arranged at the bottom of the silo 702, and the two discharge ports are respectively connected to the inside of the first feeding pipe 707 and the second feeding pipe 708. The inner diameter of the first feeding pipe 707 is larger than that of the second feeding pipe 708. A first auger 705 is arranged inside the first feeding pipe 707, and the first auger 705 is sleeved on the outside of the output end of the third motor 704. A second auger 706 is arranged inside the second feeding pipe 708, and the second auger 706 is sleeved on the outside of the output end of the second motor 703. The first feeding pipe 707 and the second feeding pipe 708 are respectively connected to the two channels inside the discharge cavity 709, and the two channels inside the discharge cavity 709 are respectively connected to the internal channels of the discharge pipe 601. In the normal filling process, the second motor 703 drives the first motor 703 to drive the first motor 703 to drive the second ... first motor 703 to drive the second motor 703 to drive the first motor 703 to drive the second motor 703 to drive the first motor 703 The second auger 706 rotates to transport the material inside the silo 702 to the second tray; when secondary metering and refilling are required, the third motor 704 drives the first auger 705 to rotate to transport the material inside the silo 702 to the top of the first pallet 603; the second pallet 604 and the first pallet 603 inside the discharge pipe 601 are weight-detected by the second pressure sensor 606. When the material reaches the specified weight, the second cylinder 605 contracts to move the second pallet 604 out of the discharge pipe 601, and the material falls into the packaging bag below; the first pressure sensor 503 further detects the weight of the material inside the packaging bag. If there is an error and refilling is required, the discharge mechanism 7 transports the material to the top of the first pallet 603 for secondary metering;After the weight of the material is qualified after the second measurement, the second cylinder 605 contracts again, so that the supplementary material falls into the packaging bag below. This secondary measurement and supplementary material mechanism performed at the same station improves the supplementary material efficiency, shortens the process flow, and helps to improve the packaging efficiency. ;

[0038] One of the preferred embodiments of the present application is as follows: Figures 1 to 13As shown, a packaging machine capable of secondary metering and feeding, the exhaust mechanism 9 includes a bag clamping mechanism and an air-expelling mechanism, both of which are fixed by a gantry 901, the bottom of the gantry 901 is welded to the top of the second slide rail 302, the bag clamping mechanism is provided with two groups, and the bag clamping mechanism includes a third cylinder 906, both sides of the third cylinder 906 are rotatably connected to one end of the top of a clamping arm 907, and the clamping arm 907 is rotatably connected to one end of a connecting rod 908, and the other end of the connecting rod 908 is rotatably connected to the telescopic end of the third cylinder 906, the air-expelling mechanism includes a driving motor 903, the output end of the driving motor 903 is externally sleeved with a first bevel gear 902, both sides of the first bevel gear 902 are meshed with second bevel gears 904, and the second bevel gear 906 is meshed with second bevel gears 905. 04 is sleeved on the outside of the transmission screw 905, the middle of the transmission screw 905 is rotatably connected to the gantry 901, and two threads in opposite directions are set at both ends of the transmission screw 905, and the two ends of the transmission screw 905 are threadedly connected to the lifting frame 911, and two electric telescopic rods 910 are embedded inside the two ends of the lifting frame 911. The telescopic end of the bottom of the electric telescopic rod 910 is installed with an air-driving roller 909. There are two air-driving rollers 909, which are symmetrically distributed. After the weight inside the packaging bag is qualified, the telescopic end of the first cylinder 303 is extended to push the clamping suction cup 306 to clamp the packaging bag mouth, ensuring that the second electric slider 301 can move synchronously with the packaging bag to the surface of the third conveyor belt 8; in this process, the third cylinder 906 The telescopic end contracts, and the two clamping arms 907 are driven by the connecting rod 908 to clamp the bag mouth of the packaging bag, so that the packaging bag can be firmly fixed on the surface of the third conveyor belt 8, preparing for the subsequent exhaust operation. The exhaust mechanism 9 includes a driving motor 903, and the first bevel gear 902 is mounted on the outside of the output end thereof, which meshes with the second bevel gear 904 to drive the transmission screw 905 to rotate; two threads in opposite directions are arranged at both ends of the transmission screw 905, which are threadedly connected with the lifting frame 911; two electric telescopic rods 910 are embedded inside the two ends of the lifting frame 911, and the exhaust rollers 909 are installed at the bottom of the telescopic end of the electric telescopic rod 910; when the electric telescopic rod 910 is extended downward, the exhaust rollers 909 are located on both sides of the packaging bag. side; the driving motor 903 drives the first bevel gear 902 and the second bevel gear 904 to rotate, and then drives the transmission screw 905 to rotate, so that the two lifting frames 911 move relative to each other, and the two air-expelling rollers 909 clamp the packaging bag; through the contraction of the electric telescopic rod 910, the two air-expelling rollers 909 are driven to move upward, and the air inside the packaging bag is fully discharged to ensure that the internal environment of the packaging bag is suitable, prevent the material from getting damp or deteriorating during storage and transportation, and improve the sealing of the packaging and the shelf life of the product; it is worth noting that: the entire device is controlled by the main control button. Since the equipment matched with the control button is a commonly used equipment, it belongs to the existing common sense technology, and its electrical connection relationship and specific circuit structure are not repeated here.

[0039] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A packaging machine capable of secondary metering and feeding, characterized in that: The bag conveyor comprises a first conveyor belt, a bag feeding mechanism, a second conveyor belt and a filling mechanism, wherein a bag feeding mechanism is arranged on one side of the first conveyor belt, the first conveyor belt is used to convey the packaging bag to one side of the bag feeding mechanism, a second conveyor belt is arranged on one side of the bag feeding mechanism, one end of the second conveyor belt is close to the bag feeding mechanism, and the other end of the second conveyor belt is close to the detection mechanism, the detection mechanism is used to detect the weight of the material, the detection mechanism is connected to the second conveyor belt support frame by bolts, a clamping mechanism is arranged above the second conveyor belt, the clamping mechanism is used to clamp the packaging bag for horizontal movement, a filling mechanism is arranged above the detection mechanism, the filling mechanism is used to fill the packaging bag, and the interior of the filling mechanism is connected with the discharge mechanism, the discharge mechanism is connected by screws The bolt is installed above the filling mechanism, and the bottom of the discharge mechanism is supported on the ground by a column. A third conveyor belt is fixedly installed at the other end of the detection mechanism, and the third conveyor belt is used to output the packaging bags after filling. An exhaust mechanism is fixedly installed above the third conveyor belt, and the exhaust mechanism is used to exhaust the air inside the packaging bags; the bag feeding mechanism includes a first electric slider and a first slide rail, the top of the first slide rail is slidably connected to the first electric slider, and a first motor is installed on the top of one end of the first electric slider by bolts, and a first gear is sleeved on the outside of the output end of the first motor, and the first gear is meshed with the second gear, and the second gear is sleeved on one end of the first rotating shaft, and the first rotating shaft is inserted into the first electric slider, and its surface slides with the inside of the first electric slider The first and second electric sliders are connected to the second conveyor belt by a plurality of suction cups arranged on the surface of the first and second electric sliders, and the suction cups are connected to the air pump inside the housing of the first electric slider by a hose; the clamping mechanism comprises a second slide rail, the second slide rail is fixedly mounted on both sides of the second conveyor belt by bolts, and a second electric slider is mounted on the top of the second slide rail, a first air cylinder is mounted on the top of the second electric slider, a connecting frame is mounted on the outside of the telescopic end of the first cylinder, one end of the top of the connecting frame extends inwardly and is equipped with a clamping suction cup, two first sliding rods are welded on one side of the connecting frame, and the first sliding rods are slidably connected to the inside of the second electric slider; the filling mechanism comprises a cut-out A flow mechanism and a metering mechanism, the cut-off mechanism and the metering mechanism are both fixedly installed at the bottom of the discharge mechanism, the cut-off mechanism includes a second cylinder, two second cylinders are provided, and a second telescopic plate and a first telescopic plate are installed outside the telescopic ends of the two second cylinders, the second telescopic plate and the first telescopic plate are both in sliding contact with the inside of the discharge pipe; and a partition is fixedly installed in the middle of the discharge pipe, and the inside of the discharge pipe is divided into two channels by the partition; the metering mechanism includes a second pressure sensor, a first support plate and a second support plate, the second pressure sensor is respectively installed on the top of the second telescopic plate and the first telescopic plate, and the first support plate and the second support plate are fixedly installed on the top of the two pressure sensors, and the top surfaces of the first support plate and the second support plate are in sliding contact with the discharge pipe.

2. A packaging machine capable of secondary metering and replenishing materials as claimed in claim 1, characterized in that: The detection mechanism includes a conveying platform, on the top of which transmission shafts are distributed in a straight line and at equal intervals, and the transmission shafts are connected to each other through belt transmission, and the transmission shafts are connected to the inside of the conveying platform through transmission, and first pressure sensors are installed at the four ends of the bottom of the conveying platform, and the bottom of the first pressure sensor is fixedly installed on the base.

3. A packaging machine capable of secondary metering and replenishing materials as claimed in claim 1, characterized in that: The discharging mechanism includes a silo, a top cover is hinged on the top of the silo, two discharge ports are arranged at the bottom of the silo, and the two discharge ports are respectively connected to the inside of a first feeding pipe and a second feeding pipe, the inner diameter of the first feeding pipe is larger than that of the second feeding pipe, a first auger is arranged inside the first feeding pipe, and the first auger is mounted on the outside of the output end of the third motor, a second auger is arranged inside the second feeding pipe, and the second auger is mounted on the outside of the output end of the second motor, the first feeding pipe and the second feeding pipe are respectively connected to two channels inside the discharging cavity, and the two channels inside the discharging cavity are respectively connected to the internal channels of the discharging pipe.

4. A packaging machine capable of secondary metering and replenishing materials as claimed in claim 1, characterized in that: The exhaust mechanism includes a bag clamping mechanism and an air-expelling mechanism, both of which are fixed by a gantry, the bottom of the gantry is welded to the top of the second slide rail, the bag clamping mechanism is provided with two groups, and the bag clamping mechanism includes a third cylinder, both sides of the third cylinder are rotatably connected to one end of the top of the clamping arm, and the clamping arm is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the telescopic end of the third cylinder.

5. A packaging machine capable of secondary metering and replenishing materials as claimed in claim 4, characterized in that: The air-expelling mechanism includes a driving motor, a first bevel gear is sleeved on the outside of the output end of the driving motor, the first bevel gear is meshed with the second bevel gear on both sides, the second bevel gear is sleeved on the outside of the transmission screw, the middle of the transmission screw is rotatably connected to the gantry, and two threads in opposite directions are arranged at both ends of the transmission screw, the two ends of the transmission screw are threadedly connected to the lifting frame, two electric telescopic rods are embedded inside the two ends of the lifting frame, and an air-expelling roller is installed at the bottom telescopic end of the electric telescopic rod, and two air-expelling rollers are arranged and symmetrically distributed with each other.

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