Bagged cement loading system

Abstract

This invention discloses a bagged cement loading system, relating to the technical field of bagged cement loading devices. The bagged cement loading system includes a track, a conveyor trolley, an inclined belt conveyor, a support frame, a bag-splitting and stacking device, and a palletizing robot. The conveyor trolley rolls in conjunction with the track. A horizontal belt conveyor is installed at one end of the conveyor trolley, connected to one end of the inclined belt conveyor. The other end of the inclined belt conveyor is connected to the bag-splitting and stacking device, which is fixed to the lower part of the support frame. The upper part of the support frame is fixedly connected to the other end of the conveyor trolley. Base mounting frames are symmetrically fixed to the sides of the support frame on both sides of the bag-splitting and stacking device, and palletizing robots are fixed on the base mounting frames. This system, by symmetrically fixing the palletizing robots to both sides of the bag-splitting mechanism, ensures that their relative positions remain constant, guaranteeing that the palletizing robot can accurately grasp bags each time, thus improving loading efficiency.

Description

Technical Field

[0001] This invention relates to the field of bagged cement loading equipment, and more particularly to a bagged cement loading system. Background Technology

[0002] With increasing awareness of environmental protection and health, and rising labor costs, bagged cement loading equipment is trending towards automation. Currently, the market offers two main types of automated loading devices: loading heads and palletizing robots. Both use conveying mechanisms to transport bagged materials to the processing station for palletizing. However, when a vehicle enters the loading area, positional deviations are common. The fixed structure of the loading head prevents adjustment of these errors, requiring repeated vehicle repositioning, wasting time. Even small errors can cause bag shifting, reducing the vehicle's load capacity.

[0003] Existing palletizing robots mostly operate independently on tracks, with their relative position to the conveying mechanism controlled by automated programs. However, in actual use, after the conveying mechanism's shutdown program is executed, the conveying mechanism continues to move due to inertia, with a movement distance of approximately 10mm to 30mm. This uncertain inertial displacement causes a change in the relative position between the palletizing robot and the conveying mechanism, resulting in a deviation between the gap between the palletizing robot's claws and the conveying mechanism's roller platform. Consequently, the robot cannot accurately insert itself into the gap of the roller to remove the bagged cement, causing problems in the loading process and reducing loading efficiency. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a bagged cement loading system that ensures the relative positions of the palletizing robot and the conveying mechanism remain unchanged, thereby improving loading efficiency.

[0005] To achieve this technical objective, the present invention adopts the following solution: a bagged cement loading system, including a track, a conveyor trolley, an inclined belt conveyor, a support frame, a sub-bag stacking device, and a palletizing robot; the conveyor trolley rolls in conjunction with the track, a horizontal belt conveyor is installed at one end of the conveyor trolley, the horizontal belt conveyor is connected to one end of the inclined belt conveyor, the other end of the inclined belt conveyor is connected to the sub-bag stacking device, the sub-bag stacking device is fixed to the lower part of the support frame, and the upper part of the support frame is fixedly connected to the other end of the conveyor trolley; symmetrical base mounting frames are fixed on the sides of the support frame on both sides of the sub-bag stacking device, and palletizing robots are fixed on the base mounting frames.

[0006] Compared with the prior art, the beneficial effects of the present invention are as follows: By symmetrically fixing the palletizing robot on both sides of the stacking mechanism, the relative position of the two remains unchanged, ensuring that the palletizing robot can accurately grab the bag each time, thus improving the loading efficiency; by using the conveyor crane to drive the entire system to move, automatic loading is achieved, reducing the number of movable connection points of the equipment, thereby reducing the equipment failure rate.

[0007] The preferred embodiment of the present invention is as follows:

[0008] The sub-packaging and stacking device includes a sub-packaging platform, a sub-packaging mechanism, and a stacking mechanism. The stacking mechanism is a stepped storage platform, symmetrically divided into two rows of waiting stations along the X-axis. The sub-packaging mechanism is located on the sub-packaging platform, alternately connecting the two waiting stations to an inclined belt conveyor. The stacking mechanism stacks multiple bags together, reducing the overall length, adapting to the width of the vehicle, and allowing the robotic arm to load the vehicle in one go in the width direction, achieving the maximum loading capacity of the vehicle and improving loading efficiency.

[0009] The sub-packaging mechanism includes a drive unit, a first gear, and a sub-packaging half gear. The drive unit and the sub-packaging half gear are fixed on the sub-packaging platform, and the first gear is fixed on the output shaft of the drive unit. The outer side of the sub-packaging half gear has a convex arc-shaped surface, and the inner side of the sub-packaging half gear is provided with an arc-shaped rack, which meshes with the first gear. The sub-packaging half gear structure allows the bags to change angle and route during transportation without requiring additional external force. The sub-packaging half gear rotates once when a bag on the same side is full, reducing the number of start-stop cycles of the drive unit, lowering power consumption, and extending the equipment's lifespan. The arc-shaped surface has a smooth arc structure, allowing the bags to change their trajectory without significant deformation.

[0010] Electric rollers and driven rollers are installed at intervals on the subcontracting platform and the storage platform, respectively. A baffle is installed on the left end of the storage platform to prevent bags from falling.

[0011] The subcontracting platform has a sleeve fitted on its electric roller and / or driven roller, and a rotating shaft is provided on the sleeve, which is connected to the middle of the subcontracting half gear.

[0012] The palletizing robot includes a rotatable robotic arm and a robotic hand. The robotic hand is fixed to the upper end of the robotic arm and includes a fixed frame, a telescopic structure, and grippers. The fixed frame includes guide rails and a connecting frame, with the connecting frame fixed in the middle of the two guide rails. The telescopic structure is fixed to the lower side of the connecting frame. The telescopic structure includes a first drive motor, a second gear, and a linear rack. A gripper is slidably connected to each end of the fixed frame, and a linear rack is fixed to the opposite side of each gripper. The two linear racks mesh with the sides of the second gear, which is fixed to the output shaft of the first drive motor. The first drive motor is fixed to the connecting frame. The telescopic structure allows for adjustment of the gripping width of the robotic hand, making it suitable for gripping various quantities of bags. Overall, it shortens palletizing time and improves loading efficiency.

[0013] The gripper includes a support frame, a linkage mechanism, a flattening mechanism, gripper teeth, and a gripper tooth frame. The support frame is slidably connected to the guide rail via a slider, and the linkage mechanism is provided on the support frame. The linkage mechanism includes a second drive motor, a rotating rod, a pull rod, and an arc-shaped arm. The output shaft of the second drive motor is fixedly connected to the middle of the rotating rod. A pull rod is hinged to each end of the rotating rod, and an arc-shaped arm is hinged to the other end of the pull rod. The arc-shaped arm is hinged to the gripper tooth frame, and gripper teeth are fixed on the gripper tooth frame.

[0014] The support frame includes crossbeams and motor mounting plates. The two crossbeams and two motor mounting plates are arranged opposite each other to form a quadrilateral frame structure. The upper side of the crossbeams is fixedly connected to the slider through connecting plates.

[0015] It also includes a flattening mechanism, which comprises a limiting plate, a spring, and a pressure plate. The limiting plate is fixed to the lower end face of the support frame, and the lower end face of the limiting plate is fixedly connected to one end of the spring. The other end of the spring is fixedly connected to the pressure plate, which abuts against the bag. The spring-type flattening mechanism automatically adjusts the pressing force, eliminating the need for pneumatic or hydraulic cylinder drive devices, reducing equipment manufacturing costs, and preventing bag detachment due to excessive external force or inadequate flattening effect due to insufficient external force.

[0016] An upper limit rod is fixed to the lower end face of the limiting plate, and a lower limit rod is fixed to the upper end face of the pressure plate. The positions of the upper and lower limit rods correspond one-to-one, and the sum of the heights of the upper and lower limit rods is equal to the length of the spring when it is at maximum compression. The limit rods limit the rising height of the pressure plate, ensuring that the spring is in normal working condition, extending the service life of the spring, and ensuring that the bag is subjected to appropriate force. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the bagged cement loading system provided in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the load-bearing frame of the bagged cement loading system provided in an embodiment of the present invention;

[0019] Figure 3 This is a top view of the packaging and stacking device provided in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the subcontracting mechanism provided in an embodiment of the present invention;

[0021] Figure 5 This is a front view of the packaging and stacking device provided in an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of a palletizing robot provided in an embodiment of the present invention;

[0023] Figure 7 A perspective view of the robotic arm provided in an embodiment of the present invention;

[0024] Figure 8 This is a bottom view of the robot arm in its open state, provided in an embodiment of the present invention.

[0025] Figure 9 This is a side sectional view of the gripper in the closed state provided in an embodiment of the present invention;

[0026] Figure 10 This is a diagram showing the positional relationship between the flattening mechanism and the gripper provided in an embodiment of the present invention.

[0027] Figure 11 This is a schematic diagram of the flattening mechanism provided in an embodiment of the present invention;

[0028] The diagram is labeled as follows: 1. Overhead conveyor; 11. Horizontal belt conveyor; 2. Track; 3. Inclined belt conveyor; 4. Packaging and stacking device; 41. Packaging platform; 42. Packaging mechanism; 421. First gear; 422. Packaging half gear; 423. First motor reducer; 43. Stacking mechanism; 431. First storage platform; 432. Second storage platform; 433. Third storage platform; 434. Fourth storage platform; 435. Baffle; 5. Load-bearing frame; 51. Base mounting frame; 6. Palletizing robot; 61. Robotic arm; 7. Robotic hand; 71. Telescopic structure; 711. Second... 712. Motor reducer; 713. Second gear; 714. Linear rack; 72. Guide rail; 725. Connecting frame; 726. Slider; 727. Connecting plate; 73. Gripper; 74. Crossbeam; 75. Motor fixing plate; 76. Linkage mechanism; 777. Third motor reducer; 78. Rotating rod; 79. Pull rod; 70. Arc arm; 71. Gripper frame; 72. Shaft; 73. Gripper; 74. Flattening mechanism; 75. L-shaped bracket; 76. Limiting plate; 777. Spring; 778. Pressure plate; 779. Upper limit rod; 770. Lower limit rod; 771. Exhaust window. Detailed Implementation

[0029] To fully understand the purpose, features and effects of the present invention, the present invention will be described in detail through the following specific embodiments, but the present invention is not limited thereto.

[0030] Please see Figure 1 and Figure 2This invention provides a bagged cement loading system, comprising a conveyor crane 1, a track 2, an inclined belt conveyor 3, a bagging and stacking device 4, a support frame 5, and a palletizing robot 6. The conveyor crane 1 consists of wheels, a frame, and a horizontal belt conveyor 11. Wheels are mounted on the lower end of the frame and roll on the track 2, which is fixed to the upper part of the factory building. The lower left side of the frame is fixedly connected to the upper end of the support frame 5. The horizontal belt conveyor 11 is mounted on the right end of the frame. The left end of the horizontal belt conveyor 11 is fixedly connected to the upper end of the inclined belt conveyor 3, and the lower end of the inclined belt conveyor 3 is fixedly connected to the right end of the bagging and stacking device 4. The bagging and stacking device 4 is fixed to the lower part of the support frame 5.

[0031] Please see Figure 3 The packaging and stacking device 4 consists of a stacking mechanism 43, a packaging platform 41, and a packaging mechanism 42. The packaging platform 41 is a roller platform structure that slopes from the lower left to the upper right. The rollers consist of spaced electric rollers and driven rollers for conveying bags. The right side of the packaging platform 41 is fixedly connected to the inclined belt conveyor 3, and the left side of the packaging platform 41 is fixedly connected to the stacking mechanism 43.

[0032] A subcontracting mechanism 42 is provided at the center of the connection between the subcontracting platform 41 and the stacking mechanism 43, such as Figure 4 As shown, the subcontracting mechanism 42 consists of a drive unit, a first gear 421, a subcontracting half gear 422, a rotating shaft, and a sleeve. The drive unit is a first motor reducer 423. The first motor reducer 423 is fixed at the connection position between the subcontracting platform 41 and the stacking mechanism 43. The output shaft of the first motor reducer 423 is vertically upward, and the first gear 421 is fixed on the output shaft, meshing with the subcontracting half gear 422. The subcontracting half gear 422 is fixed to the sleeve via the rotating shaft. The sleeve is fitted and fixed to multiple rollers on the subcontracting platform 41, allowing the subcontracting half gear 422 to rotate around the rotating shaft under the action of the first gear 421. The outer surface of the sub-packaging half-gear 422 is a convex, smooth arc-shaped surface, and the inner surface is an outwardly convex arc-shaped rack structure. The arc-shaped rack meshes with the first gear 421, causing the sub-packaging half-gear 422 to rotate around the axis and alternately stop at two preset positions. This blocks one side of the conveying channel of the inclined belt conveyor 3 from the stacking mechanism 43, allowing the bags to enter the other side of the stacking mechanism 43 from the conveying channel. The arc-shaped surface of the sub-packaging half-gear 422 changes the transport angle of the bags, ensuring that the bags are placed horizontally along the X-axis in the length direction before reaching the stacking mechanism 43, thus storing them neatly.

[0033] Please see Figure 5The stacking mechanism 43 consists of a frame, rollers, and storage platforms. Multiple rollers are spaced apart on the upper surface of the frame, each consisting of an electric roller and a driven roller mounted on the machine. The spacing of the rollers matches the spacing of the claw teeth 76 of the robotic arm 7, allowing the gripper 73 to lift the bag through the gaps in the rollers and remove it. The rollers form storage platforms on the upper surface of the frame. Multiple storage platforms are arranged in a stepped, ascending manner: a first storage platform, a middle storage platform, and a last storage platform. The length (X-axis) of the first storage platform is the same as the length of the bagged cement, the length of the middle storage platform is less than the length of the bagged cement, and the last storage platform is connected to the sub-packaging platform 41. Preferably, four storage platforms are designed: the first storage platform 431 is located on the far left and is the lowest position, followed by the second storage platform 432, the third storage platform 433, and the fourth storage platform 434, sequentially moving to the right. The first storage platform 431 is the same length as the bagged cement, while the second and third storage platforms are shorter than the bagged cement, allowing for partial stacking of the bags and reducing the overall length when grabbing multiple bags. A vertical baffle 435 is fixed to the left end load-bearing frame 5 of the first storage platform 431 to prevent the bags from slipping away.

[0034] The storage platform is symmetrically divided into two rows of waiting stations along the X-axis of track 2. A sub-packaging mechanism 42 connects the single conveyor channel of the inclined belt conveyor 3 alternately with the two rows of waiting stations. Sensors are installed on the two waiting stations of the fourth storage platform 434 to detect the number of bags passing through each station. The sensors are connected to the PLC controller of the loading system. The PLC controller contains a counter; by setting the number of bags on the counter, commands are sent to the sub-packaging mechanism 42 and the inclined belt conveyor 3 to control their start and stop. If the counter count is ≥4, a command is sent to the sub-packaging mechanism 42 or the inclined belt conveyor 3 to change its operating state. When the fourth bag from one row of waiting stations enters the fourth storage platform 434, the PLC controller sends a command to the sub-packaging mechanism 42, which then starts. The bags are conveyed to another row of empty waiting stations; when the fourth bag in the other row of waiting stations enters the fourth storage platform 434, and both sets of waiting stations are full, the PLC controller sends a command to the inclined belt conveyor 3 and the horizontal belt conveyor 11 to stop conveying.

[0035] Two rows of workstations have symmetrically fixed base mounting frames 51 on the sides of the load-bearing frames 5. A palletizing robot 6 is fixed on the base mounting frame 51 to ensure that the relative position of the palletizing robot 6 and the conveying structure remains unchanged, eliminating relative positional errors between the palletizing robot 6 and the conveying structure when running on the ground rail, and ensuring gripping accuracy and success rate. The palletizing robot 6 consists of a rotatable robotic arm 61 and a robotic hand 7. The rotatable robotic arm 61 is a purchased product, such as a Kawasaki robotic arm. The upper end of the rotatable robotic arm 61 is connected to the robotic hand 7. Figure 6 As shown.

[0036] Please see Figure 7 and Figure 8 The robotic arm 7 consists of a telescopic structure 71, a fixed frame, and grippers 73. The fixed frame consists of two parallel guide rails 72, which are fixedly connected at their midpoints by a connecting frame 721. The upper end of the connecting frame 721 is fixedly connected to the robotic arm 61, and the telescopic structure 71 is mounted on the lower end of the connecting frame 721. The telescopic structure 71 consists of a second motor reducer 711, a second gear 712, and a linear rack 713. The second motor reducer 711 is fixed on the connecting frame 721, and its output shaft is perpendicular to the guide rails 72 and faces downwards. The second gear 712 is fixedly mounted on the output shaft, and its front and rear sides mesh with a linear rack 713. The end of the linear rack 713 closest to the second gear 712 is a movable end, and the other end of the linear rack 713 is fixedly connected to a gripper 73.

[0037] Please see Figure 9 and Figure 10 The gripper 73 consists of a support frame, a linkage mechanism 74, a flattening mechanism 77, a gripper tooth frame 75, and gripper teeth 76. The support frame consists of two crossbeams 731 and two motor fixing plates 732. The two crossbeams 731 are parallel to each other and perpendicular to the guide rails 72 on the horizontal plane. The upper sides of both ends of the two crossbeams 731 are fixedly connected by connecting plates 723. Each connecting plate 723 has a slider 722 fixed on it, and the slider 722 is slidably connected to the guide rail 72. That is, two sliders 722 are installed on each guide rail 72, and the sliders 722 on the two guide rails 72 on the same side of the connecting frame 721 are in the same position. The lower sides of both ends of the two crossbeams 731 are connected by motor fixing plates 732 to form a quadrilateral frame structure. The motor fixing plates 732 have notches for the linkage mechanism 74 to pass through.

[0038] The linkage mechanism 74 consists of a third motor reducer 741, a rotating rod 742, a pull rod 743, and an arc-shaped arm 744. The third motor reducer 741 is fixed on the motor mounting plate 732, and its output shaft is parallel to the guide rail 72. The rotating rod 742 and the pull rod 743 are both long rod structures, with the center of symmetry of the rotating rod 742 fixed on the output shaft of the third motor reducer 741. A pull rod 743 is hinged to each end of the rotating rod 742, and an arc-shaped arm 744 is hinged to the other end of each pull rod 743. The lower ends of the two arc-shaped arms 744 are respectively fitted into the center positions of two shafts 751. Both ends of each shaft 751 are hinged to a claw tooth frame 75, and comb-shaped claw teeth 76 are fixed on the claw tooth frame 75. The two claw tooth frames 75 are mirror-symmetrically arranged along the X-axis, forming a complete gripper 73.

[0039] The lower end face of the support frame is also fixed with symmetrically arranged flattening mechanisms 77, which are located inside the claw tooth frame 75, such as... Figure 11 As shown. The flattening mechanism 77 consists of an L-shaped bracket 771, a limiting plate 772, a spring 773, an upper limiting rod 775, a lower limiting rod 776, and a pressure plate 774. The vertical surface of the L-shaped bracket 771 is fixedly connected to the side of the limiting plate 772. The middle of the lower end face of the limiting plate 772 is fixedly connected to one end of the spring 773, and the other end of the spring 773 is fixedly connected to the middle of the pressure plate 774. Upper limiting rods 775 are fixedly installed at the four corners of the lower end face of the limiting plate 772, and lower limiting rods 776 are fixedly installed on the corresponding pressure plates 774. When the spring 773 is compressed, the upper end of the lower limiting rod 776 abuts against the lower end of the upper limiting rod 775. The height of the upper and lower limiting rods is the same as the length of the spring 773 when it is at its maximum compression, controlling the contraction range of the spring 773 and extending its service life. The length direction of the pressure plate 774 is consistent with the length direction of the bag. The pressure plate 774 is equipped with an exhaust window 777 to distribute the pressure during bag compression and prevent sudden force application from causing gas inside the bag to be squeezed out from both ends, thus preventing bag breakage. The horizontal plane of the L-shaped bracket 771 is fixed to the upper side of the motor mounting plate 732. Each motor mounting plate 732 is equipped with a flattening mechanism 77. The two flattening mechanisms 77 are located inside the claw frame 75 to ensure that the pressure plate 774 is in contact with the top of the bag.

[0040] Working Process: Bagged cement is transported by a horizontal belt conveyor 11 to an inclined belt conveyor 3. The inclined belt conveyor 3 then transports the bagged cement to a sub-packaging platform 41. A sub-packaging half-gear 422 separates one row of waiting stations from the conveyor channel. Under the action of the rollers and the sub-packaging half-gear 422, the bagged cement enters another row of waiting stations. When it reaches the first storage platform 431, the bagged cement stops moving. The waiting stations gradually fill up. When the fourth bag of cement is placed on the fourth storage platform 434, the PLC controller sends a command to start the sub-packaging mechanism 42. The sub-packaging half-gear 422 connects the empty waiting station to the conveyor channel, and the bagged cement begins to fill that side of the waiting station. Simultaneously, the palletizing robot 6 on the filled waiting station side rotates its robotic arm 61 and robotic hand 7 to grab the stacked bagged cement. The two rows of waiting stations are filled alternately, and the two palletizing robots 6 grab the cement alternately, improving loading efficiency. When forward or backward movement is required, the overhead conveyor 1 is started, which moves the entire system. While moving, the conveying mechanism and the sub-packing and stacking device 4 continue to operate, reducing downtime and further improving loading efficiency.

[0041] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.

Claims

1. A bagged cement loading system, comprising a track, a conveying trolley, an inclined belt conveyor, a load-bearing frame, a sub-packing and stacking device and a stacking robot, characterized in that the conveying trolley is in rolling engagement with the track, one end of the conveying trolley is provided with a horizontal belt conveyor, the horizontal belt conveyor is connected with one end of the inclined belt conveyor, the other end of the inclined belt conveyor is connected with the sub-packing and stacking device, the sub-packing and stacking device is fixed to the lower part of the load-bearing frame, and the upper part of the load-bearing frame is fixedly connected with the other end of the conveying trolley.

2. The bagged cement loading system according to claim 1, characterized in that the load-bearing frame is symmetrically fixed with a base mounting frame on the side surface of the load-bearing frame on both sides of the sub-packing and stacking device, the base mounting frame is fixed with the stacking robot.

3. The bagged cement loading system according to claim 1, characterized in that the sub-packing and stacking device comprises a sub-packing platform, a sub-packing mechanism and a stacking mechanism, the stacking mechanism is a stepped storage platform, the storage platform is symmetrically divided into two rows of waiting stations along the X axis, the sub-packing mechanism is arranged on the sub-packing platform and alternately communicates with the inclined belt conveyor.

4. The bagged cement loading system according to claim 1, characterized in that the sub-packing mechanism comprises a driving device, a first gear and a sub-packing half gear, the driving device and the sub-packing half gear are respectively fixed on the sub-packing platform, and the first gear is fixed on the output shaft of the driving device; the outer side of the sub-packing half gear is a convex arc surface, and the inner side of the sub-packing half gear is provided with an arc-shaped gear rack, and the arc-shaped gear rack is in meshing engagement with the first gear.

5. The bagged cement loading system according to claim 1, characterized in that the stacking robot comprises a rotatable mechanical arm and a mechanical hand, the mechanical hand is fixed on the upper end of the mechanical arm, the mechanical hand comprises a fixed frame, an extension structure and a clamping jaw, the fixed frame comprises a guide rail and a connecting frame, the connecting frame is fixed in the middle of the two guide rails, and the extension structure is fixed on the lower side of the connecting frame; the extension structure comprises a first driving motor, a second gear and a straight gear rack, the fixed frame is slidably connected with one clamping jaw at both ends, the opposite side surfaces of the two clamping jaws are respectively fixed with a straight gear rack, the two straight gear racks are respectively in meshing engagement with the side surfaces of the second gear, the second gear is fixed on the output shaft of the first driving motor, and the first driving motor is fixed on the connecting frame.

6. The bagged cement loading system according to claim 1, characterized in that the clamping jaw comprises a support frame, a linkage mechanism, a flattening mechanism, a jaw tooth frame and jaw teeth, the support frame is slidably connected with the guide rail through a sliding block, and the linkage mechanism is arranged on the support frame; the linkage mechanism comprises a third motor reducer, a rotating rod, a pull rod and an arc-shaped arm, the third motor reducer is fixed on a motor fixing plate, and the output shaft of the third motor reducer is arranged in parallel with the guide rail; the rotating rod and the pull rod are respectively long rod structures, the symmetric center of the rotating rod is fixed on the output shaft of the third motor reducer; the two ends of the rotating rod are respectively hinged with a pull rod, the other ends of the two pull rods are respectively hinged with an arc-shaped arm, the lower ends of the two arc-shaped arms are respectively sleeved on the central positions of the two shaft rods, the two ends of each shaft rod are respectively hinged with a jaw tooth frame, the jaw tooth frame is fixed with a comb-shaped jaw tooth, the two jaw tooth frames are mirror-symmetrically arranged along the X axis to form a complete clamping jaw.

7. The bagged cement loading system according to claim 1, characterized in that the sub-packing platform and the storage platform are respectively and intermittently provided with an electric roller and a driven roller, and the left end of the storage platform is provided with a baffle.

2. A bagged cement loading system as defined in claim 1, wherein, 8. The bagged cement loading system according to claim 1, characterized in that a sleeve is sleeved on the electric roller and / or the driven roller of the sub-packing platform, the sleeve is provided with a rotating shaft, and the rotating shaft is connected with the middle part of the sub-packing half gear.

3. A bagged cement truck loading system as defined in claim 2, wherein, 9. The bagged cement loading system according to claim 1, characterized in that the support frame comprises a cross beam and a motor fixing plate, the two cross beams and the two motor fixing plates are oppositely arranged to form a quadrilateral frame structure, and the cross beam is fixedly connected with the sliding block through a connecting plate on the upper side.

4. The bagged cement truck loading system of claim 1, wherein, ​ 5. The bagged cement truck loading system according to claim 1, wherein, The flattening mechanism comprises a limiting plate, a spring and a pressing plate, the limiting plate is fixed on the lower end surface of the support frame, the lower end surface of the limiting plate is fixedly connected with one end of the spring, the other end of the spring is fixedly connected with the pressing plate, and the pressing plate abuts against the bag.

6. A bagged cement truck loading system as defined in claim 5, wherein, The upper limiting rod is fixed on the lower end surface of the limiting plate, the lower limiting rod is fixed on the upper end surface of the pressing plate, the upper and lower limiting rods are in one-to-one correspondence in position, and the height of the upper and lower limiting rods is equal to the length of the spring when the spring is in the maximum compression amount.

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