High-precision ton bag packaging machine

Abstract

The utility model relates to ton bag packaging machine technical field, specifically high accuracy ton bag packaging machine. It includes support frame, is equipped with support platform on support frame, is equipped with stirring mechanism, blanking mechanism on support platform, is equipped with the stop valve of cooperation control accurate blanking on and off between stirring mechanism and blanking mechanism, blanking mechanism penetrates support platform and stretches to below support platform, and the periphery of blanking mechanism located above support platform is equipped with the air blowing mechanism for blowing the residual powder material in the inside of blanking mechanism, the periphery of blanking mechanism located below support platform is equipped with air bag bag clamping mechanism, is equipped with weighing sensor on support platform, and weighing sensor and air bag bag clamping mechanism are connected with adaptation, so that weighing sensor only hoists air bag bag clamping mechanism and ton bag, and the friction caused by the lift cylinder, cylinder mounting frame, cylinder lift in prior art and the influence caused by ton bag to weighing sensor are all excluded, solve the problem of ton bag packaging machine low precision.

Description

Technical Field

[0001] This utility model relates to the field of ton bag packaging machine technology, specifically a high-precision ton bag packaging machine. Background Technology

[0002] Ton bag packaging machines are core equipment for the large-scale packaging of powder and granular materials. They are widely used in industries such as chemical, building materials, grain, and mining. Their core requirement is to achieve efficient material transfer and accurate metering and packaging.

[0003] Most existing ton bag packaging machines hoist the lifting cylinder, cylinder mounting frame, and ton bag lifting part together onto the weighing sensor, thus affecting the accuracy of the weighing sensor. Furthermore, the feeding system of ton bag packaging machines typically consists of a stirring mechanism, a feeding pipe, and simple on / off valves. These valves have low accuracy, and material residue easily adheres to the inner wall of the feeding pipe, leading to a large deviation between the actual feeding amount and the set value, affecting packaging accuracy. Some equipment lacks a stable airflow-assisted unblocking structure; long-term accumulation of residual powder not only further reduces measurement accuracy but may also cause blockage of the feeding pipe, affecting continuous production efficiency. Conventional rubber block bag clamping mechanisms in existing technologies generally have a certain degree of rigidity, resulting in a loose seal between the ton bag and the feeding pipe during packaging, leaving gaps that cause powder leakage. This not only pollutes the packaging environment with dust but also causes airborne dust to settle on the packaging bag, leading to fluctuations in accuracy and ultimately affecting packaging precision. Utility Model Content

[0004] To address the problems in related technologies, this invention provides a high-precision ton bag packaging machine, which solves the problem of low precision in ton bag packaging machines.

[0005] To solve the above problems, the following technical solutions are provided: This utility model relates to a high-precision ton bag packaging machine, which includes a support frame. A support platform is fixedly mounted on the upper part of the support frame. A stirring mechanism and a feeding mechanism are arranged sequentially from top to bottom on the support platform. A gate valve is provided between the stirring mechanism and the feeding mechanism to control the precise on / off of feeding in conjunction with a positioner. The feeding mechanism passes through the support platform and extends to the bottom of the support platform. An air blowing mechanism is provided around the feeding mechanism located above the support platform to blow away residual powder inside the feeding mechanism. An airbag clamping mechanism is provided around the feeding mechanism located below the support platform. A weighing sensor is provided on the support platform and is adapted to and connected to the airbag clamping mechanism.

[0006] The above solution utilizes a slide gate valve, which offers precise opening and closing and rapid on / off response. Combined with a positioner, this allows for accurate control of the powder flow from the mixing mechanism to the feeding mechanism, reducing feeding deviations caused by valve lag or poor sealing, thus improving feeding control accuracy. An air blowing mechanism removes residual powder from the feeding mechanism, preventing discrepancies between the actual feeding amount and the set value caused by powder buildup. This significantly reduces the impact of residual material on packaging accuracy and ensures consistent feeding amounts each time. Finally, an airbag clamping mechanism ensures a stable, sealed connection between the ton bag and the feeding mechanism, reducing powder leakage during packaging due to loose bag openings and improving packaging weight accuracy. These solutions address the problems of slow on / off response, powder residue in the feeding pipe, and powder leakage that affect accuracy.

[0007] By adopting the above technical solution, the weighing sensor is only used to suspend the airbag clamping mechanism and the ton bag, thus eliminating the influence of the lifting cylinder, cylinder mounting frame, friction caused by cylinder lifting and lowering, and the balance of the inner and outer barrels of the ton bag on the weighing sensor in the existing technology, thereby improving the accuracy of the ton bag packaging machine.

[0008] Furthermore, the feeding mechanism includes a feeding pipe, the upper end face of which is fixedly and sealed to the lower end face of the slide valve.

[0009] In the above solution, the feeding pipe is sealed to the plug valve to prevent leakage or dust from the powder during the falling process due to gaps at the connection, thereby reducing powder loss and ensuring the accuracy of the feeding amount.

[0010] Furthermore, the air blowing mechanism includes an air storage tank, an air delivery pipe, and an annular jet pipe. The annular jet pipe is coaxially sleeved on the outer wall of the feed pipe. Several branch pipes are evenly distributed on the inner side of the annular jet pipe. One end of each branch pipe is connected to the annular jet pipe, and the other end of each branch pipe is connected to the feed pipe. The jet nozzles of the branch pipes face the direction of powder flow inside the feed pipe. The outer side of the annular jet pipe is connected to the air storage tank through the air delivery pipe, and a valve is provided on the air delivery pipe.

[0011] In the above scheme, the air blowing mechanism ensures a stable air supply from the air tank, and the valves on the air delivery pipe precisely control the air flow, ensuring stable and controllable air jetting. The evenly distributed branch pipes can fully cover all areas of the inner wall of the pipe, thereby blowing off the residual powder adhering to the inner wall of the feed pipe.

[0012] Furthermore, the airbag clamping mechanism includes an airbag and a clamp. The airbag is located on the lower end face of the feed pipe. The airbag is provided with an inflation port and an air outlet. The clamp is sleeved on the outer wall of the airbag. A connecting mechanism is provided between the clamp and the lower end face of the support platform. The connecting mechanism is used to prevent the clamp from falling off.

[0013] The above solution utilizes an airbag clamping mechanism, combining an airbag and a clamp. After inflation, the airbag tightly seals against the ton bag opening and the outer wall of the discharge pipe, forming a flexible seal. This prevents damage to the bag opening caused by hard contact, effectively preventing powder leakage and ensuring accurate packaging weight. The inflation and deflation ports allow for flexible adjustment of the inflation pressure, adapting to different ton bag opening sizes and enhancing the versatility of the airbag clamping mechanism. Deflating the airbag facilitates quick bag removal, improving packaging efficiency. The clamp, fitted onto the outer wall of the airbag, prevents displacement or deformation after inflation, ensuring sealing stability.

[0014] Furthermore, the connecting mechanism includes a connecting frame and a cylinder. The upper end of the connecting frame is fixedly connected to the lower end face of the support platform, the lower end face of the connecting frame is fixedly connected to the upper end of the cylinder, and the piston rod of the cylinder is fixedly connected to the outer wall surface of the clamp. The weighing sensor is adapted to and connected to the connecting frame.

[0015] In the above solution, the piston rod of the cylinder is directly connected to the clamp by the connecting mechanism, which can realize the precise lifting and lowering of the clamp and ensure that the clamping force of the airbag on the bag mouth of the ton bag is uniform and stable.

[0016] Furthermore, the stirring mechanism includes a cylinder and a motor. The lower end face of the cylinder is fixedly and sealed to the upper end face of the slide valve. The motor is located on one side of the cylinder. A rotating shaft is fixedly connected to the output shaft of the motor. The rotating shaft extends into the cylinder, and stirring blades are provided on the section of the rotating shaft located inside the cylinder.

[0017] In the above scheme, the stirring mechanism is set up, and the rotating shaft and stirring blades are driven by the motor to rotate, so as to fully stir the powder in the cylinder, break up the material agglomeration, and make the powder particles evenly distributed.

[0018] The above solution has the following advantages: 1. This utility model of a high-precision ton bag packaging machine utilizes a slide gate valve. Leveraging the precise opening and closing action and rapid on / off response of the slide gate valve, combined with a positioner, it accurately controls the flow rate of powder from the mixing mechanism to the feeding mechanism, reducing feeding deviations caused by valve lag or poor sealing, thereby improving feeding control accuracy. The air blowing mechanism blows away residual powder inside the feeding mechanism, preventing powder accumulation that could cause discrepancies between the actual feeding amount and the set value, significantly reducing the impact of residual material on packaging accuracy and ensuring consistency in feeding amount each time. The airbag clamping mechanism achieves a stable, sealed connection between the ton bag and the feeding mechanism, reducing powder leakage caused by loose bag openings during packaging, improving packaging weight accuracy, and thus solving the problems of slow on / off response, powder residue in the feeding pipe, and powder leakage affecting accuracy.

[0019] 2. A weighing sensor is installed on the support platform. The weighing sensor is adapted and connected to the airbag clamping mechanism, so that the weighing sensor only suspends the airbag clamping mechanism and the ton bag. This eliminates the influence of the lifting cylinder, cylinder mounting frame, friction caused by cylinder lifting and lowering, and the weighing sensor inside and outside the ton bag in the existing technology, thereby improving the accuracy of the ton bag packaging machine.

[0020] 3. Through the setting of the air blowing mechanism, the air storage tank provides stable air supply, and the valve on the air delivery pipe precisely controls the air flow, ensuring stable and controllable air jetting. The evenly distributed branch pipes can fully cover all areas of the inner wall of the pipe, thereby blowing off the residual powder adhering to the inner wall of the feeding pipe. Attached Figure Description

[0021] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein: Figure 1 This is a structural schematic diagram of a high-precision ton bag packaging machine; Figure 2 A schematic diagram of the structure for installing ton bags on a high-precision ton bag packaging machine; Figure 3 This is a schematic diagram of the mixing mechanism in a high-precision ton bag packaging machine; Figure 4 for Figure 1 Enlarged structural diagram of section A in the middle; Figure 5 for Figure 1 Enlarged structural diagram of section B in the middle; Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Support platform; 3. Slide valve; 4. Feed pipe; 5. Air tank; 6. Air delivery pipe; 7. Annular jet pipe; 8. Branch pipe; 9. Valve; 10. Airbag; 11. Clamp; 12. Inflation port; 13. Air outlet; 14. Connecting frame; 15. Cylinder; 16. Cylinder; 17. Motor; 18. Rotating shaft; 19. Agitator blade; 20. Ton bag; 21. Weighing sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In specific embodiment 1, such as Figures 1-5As shown, the high-precision ton bag packaging machine of this utility model includes a support frame 1, a support platform 2 fixedly installed on the upper part of the support frame 1, a stirring mechanism and a feeding mechanism arranged sequentially from top to bottom on the support platform 2, and a gate valve 3 that works with a positioner to control the precise feeding on and off between the stirring mechanism and the feeding mechanism; the feeding mechanism passes through the support platform 2 and extends to the bottom of the support platform 2, and an air blowing mechanism is arranged around the feeding mechanism located above the support platform 2 to blow off the powder material remaining inside the feeding mechanism; an airbag bag clamping mechanism is arranged around the feeding mechanism located below the support platform 2. By utilizing the precise opening and closing action and rapid on / off response of the slide valve 3, the flow rate of material from the mixing mechanism to the feeding mechanism can be accurately controlled, reducing feeding deviations caused by valve 9 lag or poor sealing, thereby improving feeding control accuracy. The air blowing mechanism is used to blow off residual powder inside the feeding mechanism, avoiding discrepancies between the actual feeding amount and the set value caused by material adhesion and accumulation, significantly reducing the impact of residual material accumulation on packaging accuracy, and ensuring consistency of feeding amount each time. The airbag clamping mechanism can achieve a stable sealed connection between the ton bag 20 and the feeding mechanism, reducing powder leakage caused by loose bag opening during packaging, and improving the accuracy of packaging weight.

[0024] A weighing sensor 21 is installed on the support platform 2. The weighing sensor 21 is adapted and connected to the airbag clamping mechanism, so that the weighing sensor 21 only lifts the airbag clamping mechanism and the ton bag 20. This eliminates the influence of the lifting cylinder, cylinder mounting bracket, friction caused by cylinder lifting and lowering, and the weighing sensor 21 inside and outside the ton bag 20 in the existing technology, thereby improving the accuracy of the ton bag packaging machine.

[0025] The feeding mechanism includes a feeding pipe 4, the upper end of which is fixedly and sealed to the lower end of the slide valve 3, thereby preventing leakage or dust from the powder during the falling process due to gaps at the connection, reducing powder loss, and ensuring the accuracy of the feeding amount.

[0026] like Figure 4 As shown, the air blowing mechanism includes an air storage tank 5, an air supply pipe 6, and an annular jet pipe 7. The annular jet pipe 7 is coaxially sleeved on the outer wall of the feed pipe 4. Several branch pipes 8 are evenly distributed on the inner side of the annular jet pipe 7. One end of the branch pipe 8 is connected to the annular jet pipe 7, and the other end of the branch pipe 8 is connected to the feed pipe 4. The jet nozzle of the branch pipe 8 faces the direction of powder flow inside the feed pipe 4. The outer side of the annular jet pipe 7 is connected to the air storage tank 5 through the air supply pipe 6. A valve 9 is installed on the air supply pipe 6. The air storage tank 5 provides stable air supply. With the cooperation of the valve 9 on the air supply pipe 6, the air flow is precisely controlled to ensure stable and controllable jetting. The evenly distributed branch pipes 8 can fully cover all areas of the inner wall of the pipe, thereby blowing off the residual powder adhering to the inner wall of the feed pipe 4.

[0027] like Figure 5As shown, the airbag clamping mechanism includes an airbag 10 and a clamp 11. The airbag 10 is located on the lower end face of the feeding pipe 4. The airbag 10 is provided with an inflation port 12 and an air outlet 13. The clamp 11 is sleeved on the outer wall of the airbag 10. A connecting mechanism is provided between the clamp 11 and the lower end face of the support platform 2. The connecting mechanism is used to prevent the clamp 11 from falling off. By combining the airbag 10 and the clamp 11, the airbag 10 can tightly fit the bag mouth of the ton bag 20 and the outer wall of the feeding pipe 4 after inflation, forming a clamping mechanism. The flexible seal avoids damage to the bag opening caused by hard contact, effectively preventing powder leakage and ensuring the accuracy of packaging weight. The inflation port 12 and the air outlet 13 allow for flexible adjustment of inflation pressure, adapting to the bag opening size of different ton bags 20, improving the versatility of the airbag clamping mechanism. At the same time, it facilitates quick bag removal after deflation, improving packaging efficiency. The clamp 11 is fitted on the outer wall of the airbag 10 to prevent the airbag 10 from shifting or deforming after inflation, ensuring sealing stability.

[0028] The connecting mechanism includes a connecting frame 14 and a cylinder 15. The upper end of the connecting frame 14 is fixedly connected to the lower end face of the support platform 2, and the lower end face of the connecting frame 14 is fixedly connected to the upper end of the cylinder 15. The piston rod of the cylinder 15 is fixedly connected to the outer wall of the clamp 11, which can realize the precise lifting and lowering of the clamp 11 and ensure that the clamping force of the airbag 10 on the bag mouth of the ton bag 20 is uniform and stable. The weighing sensor 21 is adapted to the connecting frame 14.

[0029] like Figure 3 As shown, the stirring mechanism includes a cylinder 16 and a motor 17. The lower end face of the cylinder 16 is fixedly and sealed to the upper end face of the slide valve 3. The motor 17 is located on one side of the cylinder 16. A rotating shaft 18 is fixedly connected to the output shaft of the motor 17. The rotating shaft 18 extends into the cylinder 16. A stirring blade 19 is provided on the section of the rotating shaft 18 located inside the cylinder 16. The rotating shaft 18 and the stirring blade 19 are driven to rotate by the motor 17 to fully stir the powder in the cylinder 16, break up the material agglomeration, and make the powder particles evenly distributed.

[0030] During operation, granular materials are fed into the cylinder 16 of the mixing mechanism. The motor 17 is started, and the output shaft of the motor 17 drives the rotating shaft 18 and the mixing blades 19 to rotate, fully mixing the materials in the cylinder 16, breaking up clumps and distributing the powder evenly. At this time, the slide valve 3 is closed, preventing the powder from falling. The opening of the ton bag 20 is placed over the outside of the air bladder 10 at the lower end of the discharge pipe 4. The clamp 11 is moved by the cylinder 15, so that the clamp 11 fits against the outer wall of the air bladder 10. Inflation is performed through the inflation port 12 of the air bladder 10. After the air bladder 10 expands, it forms a sealed fit, preventing powder leakage during packaging. The slide valve 3 is then opened. The well-stirred powder enters the feeding pipe 4 from the cylinder 16 and falls into the ton bag 20. When the powder approaches the set weight, it is slowly discharged. The blowing mechanism is activated, and the compressed air in the air tank 5 is delivered to the annular jet pipe 7 through the air supply pipe 6. The valve 9 can control the air flow. The branch pipe 8 on the inner side of the annular jet pipe 7 sprays air evenly around the circumference of the feeding pipe 4. The jet nozzle is facing the direction of powder flow, blowing the residual powder attached to the inner wall of the feeding pipe 4 into the ton bag 20, ensuring that the actual discharge amount is consistent with the set value and improving the packaging accuracy. After the blowing is completed, the air bag 10 releases air through the air outlet 13, and the ton bag 20 can be released.

[0031] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A high-precision ton bag packaging machine, characterized in that, The device includes a support frame, on the upper part of which a support platform is fixedly mounted. From top to bottom, a stirring mechanism and a feeding mechanism are arranged on the support platform. A slide valve, which works with a positioner to precisely control the feeding flow, is provided between the stirring mechanism and the feeding mechanism. The feeding mechanism passes through the support platform and extends to the bottom of the support platform. An air blowing mechanism is provided around the feeding mechanism located above the support platform. The air blowing mechanism is used to blow away any residual powder inside the feeding mechanism. An airbag clamping mechanism is provided on the outer periphery of the feeding mechanism located below the support platform; a weighing sensor is provided on the support platform, and the weighing sensor is adapted and connected to the airbag clamping mechanism.

2. The high-precision ton bag packaging machine as described in claim 1, characterized in that, The feeding mechanism includes a feeding pipe, the upper end face of which is fixedly and sealed to the lower end face of the slide valve.

3. The high-precision ton bag packaging machine as described in claim 2, characterized in that, The air blowing mechanism includes an air storage tank, an air delivery pipe, and an annular jet pipe. The annular jet pipe is coaxially sleeved on the outer wall of the feed pipe. Several branch pipes are evenly distributed on the inner side of the annular jet pipe. One end of each branch pipe is connected to the annular jet pipe, and the other end of each branch pipe is connected to the feed pipe. The jet nozzles of the branch pipes face the direction of powder flow inside the feed pipe. The outer side of the annular jet pipe is connected to the air storage tank through the air delivery pipe, and a valve is installed on the air delivery pipe.

4. The high-precision ton bag packaging machine as described in claim 2, characterized in that, The airbag clamping mechanism includes an airbag and a clamp. The airbag is located on the lower end face of the feeding pipe. The airbag is provided with an inflation port and an air outlet. The clamp is sleeved on the outer wall of the airbag. A connecting mechanism is provided between the clamp and the lower end face of the support platform. The connecting mechanism is used to prevent the clamp from falling off.

5. The high-precision ton bag packaging machine as described in claim 4, characterized in that, The connecting mechanism includes a connecting frame and a cylinder. The upper end of the connecting frame is fixedly connected to the lower end face of the support platform, and the lower end face of the connecting frame is fixedly connected to the upper end of the cylinder. The piston rod of the cylinder is fixedly connected to the outer wall surface of the clamp. The weighing sensor is adapted to the connecting frame.

6. The high-precision ton bag packaging machine as described in claim 1, characterized in that, The stirring mechanism includes a cylinder and a motor. The lower end face of the cylinder is fixedly and sealed to the upper end face of the slide valve. The motor is located on one side of the cylinder. A rotating shaft is fixedly connected to the output shaft of the motor. The rotating shaft extends into the cylinder. A stirring blade is provided on the section of the rotating shaft located inside the cylinder.

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