Automatic discharging device

Abstract

The utility model discloses an automatic unloading device, which relates to the technical field of unloading, and comprises a rack, an unloading platform is arranged on the rack, a ton bag fixing frame is arranged on the unloading platform, an overturning driving mechanism used for driving the unloading platform to laterally overturn is arranged on the rack, the unloading platform comprises a bottom plate and an end plate, and the end plate is arranged on the bottom plate. The end plates are arranged on the two sides of the bottom plate, a bag containing plate is arranged on the bottom plate, an elastic buffering mechanism is arranged between the bottom plate and the bag containing plate, limiting rods are further connected to the front position and the rear position between the two end plates, and ton bag side edge clamping mechanisms are arranged on the inner sides of the end plates. The ton bag side edge clamping device comprises a side edge clamping plate and a side edge clamping plate driving assembly, the side edge clamping plate driving assembly is installed on the end plate and drives the side edge clamping plate to move left and right in the turnover table, a bag clamping device is arranged at the bottom of the side edge clamping plate, a turnover cover lifting device is arranged at the top of the side edge clamping plate, and the turnover cover lifting device is arranged on the turnover table. By optimizing the structural design, the discharging efficiency can be effectively improved, the discharging process is stabilized, the defects of an existing discharging device are overcome, and the discharging device has good application prospects in industrial discharging scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of discharging, and specifically relates to an automatic discharging device. Background Technique

[0002] In the field of industrial production, the loading, unloading and transportation of materials are extremely crucial links. Among them, the ton bag, as a commonly used large-capacity packaging container, is widely used in the storage and transportation of various powdery, granular and other materials. However, the traditional discharging method often relies on a large amount of manual operation, which not only has low efficiency but also extremely high labor intensity. Workers need to manually carry the ton bag to the discharging position and then manually open the bag mouth for discharging. During this process, workers also need to constantly pay attention to the discharging progress to prevent situations such as material spillage.

[0003] With the continuous expansion of the industrial production scale and the increasing demand for production efficiency, this traditional discharging method is increasingly difficult to meet the requirements. On the one hand, the continuous increase in labor costs has significantly increased the operating costs of enterprises; on the other hand, manual operation is difficult to ensure the consistency and accuracy of the discharging process, and problems such as material residue and incomplete discharging are likely to occur, thereby affecting product quality and the smoothness of the production process.

[0004] To solve the above problems, some discharging devices have emerged in the market one after another. However, some existing discharging devices have many deficiencies in structural design. For example, the discharging platform lacks effective buffering and fixing measures, and the ton bag is prone to shaking and even displacement during the discharging process, resulting in unstable discharging and affecting the discharging effect. Moreover, the clamping and discharging assistance functions for the side of the ton bag are not perfect enough to achieve efficient and convenient discharging operations. Content of the Utility Model

[0005] The purpose of the utility model is to provide an automatic discharging device to solve the problems raised in the above background technique. Through optimizing the structural design, this device can effectively improve the discharging efficiency, stabilize the discharging process, solve the deficiencies of existing discharging devices, and has good application prospects in the industrial discharging scenario.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic unloading device, including a frame, an unloading platform on the frame, a ton bag fixing frame on the unloading platform, a flipping drive mechanism on the frame for driving the unloading platform to tilt, the unloading platform including a base plate and end plates, the end plates being disposed on both sides of the base plate, a bag holding plate on the base plate, an elastic buffer mechanism between the base plate and the bag holding plate, a limit rod connecting the front and rear positions between the two end plates, a ton bag side clamping mechanism being disposed on the inner side of the end plate, the ton bag side clamping device including a side clamping plate and a side clamping plate driving assembly, the side clamping plate driving assembly being mounted on the end plate and driving the side clamping plate to move left and right within the tilting platform, a bag clamping device being disposed at the bottom of the side clamping plate, and a flip cover lifting device being disposed at the top of the side clamping plate.

[0007] To further optimize this utility model, the following technical solutions may be preferred:

[0008] Preferably, the frame has retractable adjustable outriggers at the four corners of its bottom, which are connected to a hydraulic system, and the bottom of the frame is also equipped with wheels.

[0009] Preferably, the elastic buffer mechanism includes multiple dampers evenly distributed between the base plate and the storage plate, each damper being fitted with a buffer spring, and the two ends of the buffer spring and the damper being connected to the base plate and the storage plate, respectively.

[0010] Preferably, the bottom side of the unloading platform is hinged to the frame, and the tilting drive mechanism includes a plurality of tilting hydraulic cylinders mounted on the frame. One end of the tilting hydraulic cylinder is connected to the bottom of the unloading platform, and the other end of the tilting hydraulic cylinder is connected to the frame.

[0011] Preferably, the side clamping plate driving assembly is a servo electric cylinder, and a pressure sensor array is provided on the inner side of the side clamping plate.

[0012] Preferably, an adjustable-angle material guide plate is hinged to the bottom and rear connecting rod of the unloading platform, and an electric push rod is provided on the frame corresponding to the back of the material guide plate. One end of the electric push rod is connected to the frame, and the other end of the electric push rod is connected to the material guide plate. The electric push rod controls the angle of the material guide plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) Flexible installation and relocation: The adjustable outriggers at the four corners of the bottom of the frame are connected to the hydraulic system. Through hydraulic control, the overall height of the device can be flexibly adjusted according to the flatness of different working sites and the unloading height requirements, ensuring that the unloading platform is in the optimal working position, which greatly enhances the environmental adaptability of the device. At the same time, the wheels at the bottom facilitate the movement of the device in workshops and other places. Whether it is moving between different production areas or adjusting the unloading position, it can be easily achieved, which significantly improves the mobility and convenience of the device.

[0015] (2) Highly efficient elastic buffering mechanism: The elastic buffering mechanism, consisting of multiple dampers and outer buffer springs, plays a key role between the base plate and the bag-holding plate. When the ton bag is placed on the bag-holding plate, the buffer springs can effectively absorb the impact force generated by the falling ton bag, reducing damage to the unloading platform and the structure below; the dampers further suppress the rebound of the buffer springs, allowing the bag-holding plate to stabilize quickly, preventing the ton bag from affecting subsequent unloading operations due to excessive shaking, and ensuring the smoothness and safety of the unloading process.

[0016] (3) Reliable Tilting Drive System: The bottom of the unloading platform is hinged to the frame on one side. The tilting drive mechanism, composed of multiple tilting hydraulic cylinders, is connected to the bottom of the unloading platform at one end and to the frame at the other end. This structural design provides a powerful and stable driving force. During unloading, the unloading platform can be smoothly tilted to the required angle by precisely controlling the extension and retraction of the tilting hydraulic cylinders, achieving efficient unloading. Compared with other drive methods, the tilting hydraulic cylinder has advantages such as large output, stable operation, and easy control, which can ensure the smooth progress of the unloading process.

[0017] (4) Precise side clamping and detection function: The side clamping plate is driven by a servo electric cylinder, which has high-precision position control capability. It can accurately drive the side clamping plate to move left and right in the turnover table to achieve tight clamping of ton bags of different sizes. The pressure sensor array set on the inner side of the side clamping plate can monitor the clamping force in real time. When the clamping force is insufficient or excessive, it can be fed back to the control system in time to adjust the output of the servo electric cylinder, ensuring that the ton bags maintain a stable clamping state during the unloading process, avoiding material leakage, and preventing damage to the ton bags due to excessive clamping force.

[0018] (5) Optimized material guiding effect: The adjustable angle material guide plate, hinged to the bottom and rear connecting rod of the unloading platform, works in conjunction with the electric push rod on the frame to flexibly adjust the angle of the guide plate according to the unloading requirements. During unloading, the material guide plate can be adjusted to a suitable angle to guide the material accurately to the designated position, effectively preventing material spillage and improving unloading efficiency. At the same time, the angle is controlled by the electric push rod, which is simple and precise to operate and can respond quickly according to the actual unloading situation to meet the material guiding requirements under different working conditions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the flipping of this utility model;

[0021] Figure 3 This is a top view of the unloading platform.

[0022] In the diagram: 1. Frame; 2. Unloading platform; 3. Ton bag fixing frame; 4. Ton bag; 5. Adjustable support legs; 6. Traveling wheels; 7. Flip-top lifter; 8. Bag clamp; 9. Side clamping plate; 10. Base plate; 11. End plate; 12. Damper; 13. Buffer spring; 14. Bag placement plate; 15. Tilting hydraulic cylinder; 16. Material guide plate. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-3This utility model provides a technical solution: an automatic unloading device, including a frame 1, an unloading platform 2 mounted on the frame, and a ton bag fixing bracket 3 mounted on the unloading platform to facilitate the fixing of the ton bags and ensure the stability of the ton bags 4 during unloading, preventing shaking or displacement from affecting the unloading operation and improving the safety and reliability of unloading. A tilting drive mechanism for driving the unloading platform to tilt is mounted on the frame. The unloading platform includes a base plate 10 and end plates 11, with end plates 11 mounted on both sides of the base plate. A bag-holding plate 14 is mounted on the base plate, and an elastic buffer mechanism is installed between the base plate and the bag-holding plate 14. When the unloading platform tilts to unload, it can effectively buffer the impact force generated by the gravity and inertia of the ton bags, reduce damage to the ton bags and materials, extend the service life of the ton bags, and at the same time reduce the impact on the unloading platform, protect the equipment structure, and extend the overall service life of the equipment. Limiting rods are connected between the front and rear positions of the two end plates. A ton bag side clamping mechanism is installed on the inner side of the end plate. The ton bag side clamping device includes a side clamping plate and a side clamping plate drive assembly. The side clamping plate drive assembly is installed on the end plate and drives the side clamping plate to move left and right in the tilting table. A bag clamper 8 is installed at the bottom of the side clamping plate 9, and a flip cover lifter 7 is installed at the top of the side clamping plate. The bag clamper installed at the bottom of the side clamping plate can firmly clamp the bottom side of the ton bag to prevent material leakage. The flip cover lifter installed at the top can lift the flip cover of the ton bag during unloading, which facilitates the smooth unloading of materials and improves the convenience and efficiency of unloading.

[0025] In a preferred embodiment, retractable adjustable outriggers 5 are installed downwards at the four corners of the bottom of the frame 1, and these outriggers 5 are connected to a hydraulic system. By controlling the extension and retraction of the adjustable outriggers through the hydraulic system, the height of the frame can be easily adjusted, allowing the unloading platform to adapt to unloading scenarios of different heights, such as docking with transport vehicles and storage containers of different heights, greatly improving the equipment's versatility and flexibility. Simultaneously, during operation, the adjustable outriggers can be extended and firmly supported on the ground, increasing the contact area between the equipment and the ground, improving stability, and preventing swaying or displacement due to uneven force during unloading. The bottom of the frame 1 is also equipped with casters 6, facilitating movement of the equipment within the work area, simplifying installation, debugging, and transfer between different unloading positions, improving ease of use and work efficiency, and reducing handling costs and labor consumption.

[0026] In a preferred embodiment, the elastic buffer mechanism includes multiple dampers 12 evenly distributed between the base plate and the storage plate. Each damper is fitted with a buffer spring 13. The two ends of the buffer spring and the damper are connected to the base plate and the storage plate, respectively. This design can absorb part of the impact force when the unloading platform overturns through the elastic deformation of the buffer spring. The damper further suppresses the excessive rebound that the buffer spring may produce, making the buffering process more stable and efficient. This achieves dual protection for the ton bag and the unloading platform, greatly improving the stability and reliability of the equipment operation.

[0027] In a preferred embodiment, the bottom of the unloading platform is hinged to the frame on one side. The tilting drive mechanism includes multiple tilting hydraulic cylinders 15 mounted on the frame. One end of each tilting hydraulic cylinder is connected to the bottom of the unloading platform, and the other end is connected to the frame. These multiple tilting hydraulic cylinders provide a stable and powerful driving force, precisely controlling the tilting angle of the unloading platform to ensure smooth unloading, adapting to different unloading needs, and improving unloading efficiency. Furthermore, compared to a single drive unit, the coordinated operation of multiple hydraulic cylinders better distributes the load, reduces the stress on individual components, and extends the service life of the drive mechanism.

[0028] In a preferred embodiment, the side clamping plate driving assembly is a servo electric cylinder, and a pressure sensor array is installed on the inner side of the side clamping plate. Using a servo electric cylinder as the side clamping plate driving assembly, the servo electric cylinder has the characteristics of high precision, high response speed and precise displacement control, which can accurately drive the side clamping plate to move left and right within the tilting table, so as to achieve tight and stable clamping of ton bags of different sizes, improve the fixing effect of ton bags during unloading, and prevent ton bags from loosening and slipping during unloading.

[0029] In a preferred embodiment, an adjustable-angle material guide plate 16 is hinged to the bottom and rear connecting rod of the unloading platform 2. An electric push rod is installed on the frame corresponding to the back of the material guide plate. One end of the electric push rod is connected to the frame, and the other end is connected to the material guide plate. The electric push rod controls the angle of the material guide plate. During the unloading process, the angle of the material guide plate can be precisely adjusted by the electric push rod according to the characteristics of the material (such as particle size, flowability, etc.), the unloading position, and the shape and position of the receiving material container. This effectively guides the flow of material, ensuring it falls accurately into the target container, reducing material splashing and spillage, improving unloading accuracy and material collection efficiency, while preventing material scattering from polluting the working environment and reducing material waste and cleaning costs.

[0030] The key components of the above solution will be explained in detail below:

[0031] I. Overall Framework

[0032] Frame: Serving as the supporting foundation for the entire automatic unloading device, the frame is welded from high-strength steel, possessing a stable frame structure capable of withstanding the weight of the unloading platform and fully loaded ton bags, as well as various forces generated during the unloading process. At the four corners of the frame's bottom, retractable adjustable outriggers are installed. Each adjustable outrigger contains a hydraulic telescopic rod, connected to an independent hydraulic system. The hydraulic system includes a hydraulic pump, hydraulic oil tank, and control valve assembly. By adjusting the flow and pressure of the hydraulic oil through the control valve assembly, the extension or retraction length of the hydraulic telescopic rod is precisely controlled, enabling flexible adjustment of the overall frame height. Furthermore, casters made of high-strength rubber are installed at the bottom of the frame, providing excellent wear resistance and steering flexibility. The casters are connected to mounting bases at the bottom of the frame via axles, and the mounting bases are bolted to the frame, facilitating easy movement of the device between different work areas when relocation is required.

[0033] Unloading Platform: The unloading platform is the core component for supporting ton bags and enabling unloading operations. It consists of a base plate and end plates on both sides of the base plate. The base plate is made of high-quality steel plate, possessing sufficient strength and rigidity to support the weight of the ton bags and their internal materials. A bag-holding plate is installed on the upper surface of the base plate. The bag-holding plate is connected to the base plate via an elastic buffer mechanism. This mechanism consists of multiple dampers and buffer springs. The dampers are evenly distributed between the base plate and the bag-holding plate, with the number determined according to the size of the unloading platform and its load-bearing requirements. For example, multiple dampers can be evenly arranged on a standard-sized unloading platform. Each damper is fitted with a buffer spring, which coincides with the central axis of the damper. The two ends of the buffer spring are connected to corresponding mounting seats on the base plate and the bag-holding plate by welding or high-strength bolts. One end of the damper's piston rod is fixedly connected to the bag-holding plate, while the other end movably passes through a mounting hole in the base plate and connects to a fixed seat on the lower surface of the base plate. A limit rod, made of high-strength round steel, is bolted to the front and rear positions between the two end plates. Its function is to limit the forward and backward movement of the ton bags placed on the unloading platform, preventing them from shifting during unloading. The end plates are also made of steel plates, and a ton bag side clamping mechanism is installed on the inner side of the end plates.

[0034] II. Drive and Control Components

[0035] Tilting Drive Mechanism: The bottom of the unloading platform is hinged to the frame via a hinged seat made of high-strength cast steel, which is securely bolted to the frame and the bottom of the unloading platform. The tilting drive mechanism consists of multiple tilting hydraulic cylinders. The number of cylinders is determined by the size and load-bearing capacity of the unloading platform; for example, multiple cylinders can be used for larger unloading platforms. These cylinders are evenly distributed on the frame, with one end connected to a pre-installed connecting lug on the bottom of the unloading platform via a pin, and the other end connected to a corresponding mounting base on the frame via a pin. The inlet and outlet of each cylinder are connected to the hydraulic control system via high-pressure oil pipes. The hydraulic control system precisely controls the extension and retraction of each cylinder, thus smoothly driving the unloading platform to tilt around the hinge point, enabling unloading operations at different angles.

[0036] Side Clamping Plate Drive Assembly: The side clamping plate drive assembly in the ton bag side clamping mechanism uses a servo electric cylinder. The servo electric cylinder mainly consists of a motor, lead screw, nut, guide rail slider, and other components. The motor is a servo motor, possessing high-precision position control and speed adjustment capabilities. The motor's output shaft is connected to one end of the lead screw via a coupling. The lead screw is mounted in a mounting bracket on the end plate, which is bolted to the end plate. The nut engages with the lead screw and is fixedly connected to the side clamping plate via a connecting block. A guide rail slider is also installed on the end plate, connecting the side clamping plate to the guide rail. The guide rail provides precise guidance for the movement of the side clamping plate. When the servo motor receives a command from the control system, it converts the motor's rotational motion into linear motion of the side clamping plate through the lead screw and nut transmission, thereby achieving precise clamping and releasing operations on the side of the ton bag. Simultaneously, a pressure sensor array is installed on the inner surface of the side clamping plate. The pressure sensor array consists of multiple pressure sensors evenly distributed within pre-machined mounting grooves on the inner side of the side clamping plate, secured with glue or screws. The pressure sensors monitor the clamping force applied to the ton bag by the side clamping plate in real time and convert the pressure signal into an electrical signal, transmitting it to the control system. The control system then adjusts the output of the servo electric cylinder based on the actual clamping force, ensuring the ton bag maintains a suitable clamping state throughout the unloading process.

[0037] III. Auxiliary Components

[0038] Material guide plate: An adjustable-angle material guide plate is hinged to the bottom and rear connecting rod of the unloading platform via a hinge shaft. The material guide plate is made of stainless steel, which has good corrosion resistance and wear resistance. An electric push rod is installed on the frame corresponding to the back of the material guide plate. The electric push rod consists of a motor, lead screw, and push rod. The motor is fixed to the frame with bolts, the lead screw is connected to the motor's output shaft, and the push rod is fixedly connected to the nut on the lead screw. One end of the electric push rod is connected to the mounting base on the frame via a pin, and the other end is connected to a pre-installed connecting lug on the back of the material guide plate via a pin. When the motor of the electric push rod receives a command from the control system, the motor drives the lead screw to rotate, which in turn drives the push rod to extend or retract via the nut, thereby precisely controlling the angle of rotation of the material guide plate around the hinge shaft. Operators can flexibly adjust the angle of the material guide plate through the control system according to the flow characteristics of the material during unloading and the target unloading location, guiding the material accurately to the designated location and preventing material spillage.

[0039] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic unloading device, comprising a frame, a discharge platform is arranged on the frame, a bag fixing frame is arranged on the discharge platform, characterized in that: The rack is provided with a turnover driving mechanism for driving the side overturning of the discharging platform, the discharging platform comprises a bottom plate, end plates provided on both sides of the bottom plate, a bag placing plate provided on the bottom plate, an elastic buffer mechanism provided between the bottom plate and the bag placing plate, a limiting rod connected between the front and rear positions of the two end plates, a ton bag side edge clamping mechanism provided on the inner side of the end plate, the ton bag side edge clamping device comprises a side edge clamping plate and a side edge clamping plate driving assembly, the side edge clamping plate driving assembly is installed on the end plate and drives the side edge clamping plate to move left and right in the turnover table, the bottom of the side edge clamping plate is provided with a bag clamping device, and the top of the side edge clamping plate is provided with a flip lifting device.

2. An automatic unloading device according to claim 1, characterized in that: The bottom of the rack is provided with adjustable supporting legs capable of being extended and retracted at four corner positions, the adjustable supporting legs are connected with a hydraulic system, and the bottom of the rack is further provided with traveling wheels.

3. An automatic unloading device according to claim 1, characterized in that: The elastic buffer mechanism comprises a plurality of dampers uniformly arranged between the bottom plate and the bag placing plate, the dampers are provided with buffer springs, and the two ends of the buffer springs and the dampers are connected with the bottom plate and the bag placing plate respectively.

4. An automatic unloading device according to claim 1, characterized in that: One side of the bottom of the discharging platform is hingedly arranged on the rack, the turnover driving mechanism comprises a plurality of turnover hydraulic cylinders arranged on the rack, one end of the turnover hydraulic cylinders is connected with the bottom of the discharging platform, and the other end of the turnover hydraulic cylinders is connected with the rack.

5. An automatic unloading device according to claim 1, characterized in that: The side edge clamping plate driving assembly is a servo electric cylinder, and the inner side of the side edge clamping plate is provided with a pressure sensor array.

6. An automatic unloading device according to claim 1, characterized in that: Adjustable material guide plates are hingedly arranged on the bottom and rear connecting rod of the discharging platform, a motor push rod is arranged on the rack corresponding to the back of the material guide plate, one end of the motor push rod is connected with the rack, the other end of the motor push rod is connected with the material guide plate, and the motor push rod controls the angle of the material guide plate.

Images