Full-automatic double-scale-hopper granular material packaging machine

Abstract

The invention belongs to the technical field of packaging equipment, and discloses a full-automatic double-scale-hopper granule packaging machine which comprises a base and a fixing frame fixedly installed on the base, and a bag taking assembly and a sealing machine are arranged on the positions, located on the two sides of the fixing frame, of the base correspondingly. A feeding hopper, two weighing hoppers and a bagging hopper are sequentially arranged in the fixing frame from top to bottom, a guide plate is rotationally connected to the bottom of the feeding hopper, a third electric push rod is fixedly installed on one side of the feeding hopper, a sliding rod is fixedly installed at the telescopic end of the third electric push rod, and a rotating rod is fixedly connected to one side of the guide plate; a sliding groove in sliding fit with the sliding rod is formed in the rotating rod, and the two weighing hoppers are located below the two ends of the guide rod respectively. The two ends of the bottom of the feeding hopper are alternately opened through rotation of the guide plate, so that fertilizer particles can be alternately added into the two weighing hoppers when only one feeding device is used.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and particularly relates to a full-automatic double-scale hopper granular material packaging machine. Background Art

[0002] For the packaging of fertilizer granules, the transportation and weighing of fertilizer granules need to be carried out in sequence, and bagging and sealing operations are carried out after weighing. Since the weighing and bagging processes require a certain amount of time, the overall packing speed is slow and the production efficiency is low. The double-scale hopper granular material packaging machine can realize weighing with one weighing hopper and bagging with the other weighing hopper, so as to shorten the time and improve the packing speed. However, most of the existing double-scale hopper granular material packaging machines use two feeding devices to feed the two weighing hoppers respectively, resulting in a large working area and high equipment cost, poor practicability, and the need to separately control the intermittent operation of the two feeding devices, which is more troublesome to operate; in addition, when packaging fertilizer granules, it is also necessary to manually place the packaging bag at the bottom of the loading port, which is troublesome to operate, not only wasting a large amount of manpower, but also greatly reducing the work efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a full-automatic double-scale hopper granular material packaging machine to solve the problems of poor practicability and troublesome operation of the existing double-scale hopper granular material packaging machines.

[0004] To achieve the above object, the present invention provides the following technical solutions: A full-automatic double-scale hopper granular material packaging machine, including a base and a fixed frame fixedly installed on the base. A bag-taking assembly and a sealing machine are respectively arranged on both sides of the fixed frame on the base. Inside the fixed frame, a feeding hopper, two weighing hoppers and a bagging hopper are arranged in sequence from top to bottom. The bottom of the feeding hopper is rotatably connected with a guide plate. A third electric push rod is fixedly installed on one side of the feeding hopper. The telescopic end of the third electric push rod is fixedly installed with a sliding rod. One side of the guide plate is fixedly connected with a rotating rod. A sliding groove slidably matched with the sliding rod is opened on the rotating rod. The two weighing hoppers are respectively located below both ends of the guide rod.

[0005] Preferably, a weighing sensor is arranged between the weighing hopper and the fixed frame. The bottom of the weighing hopper is rotatably connected with a blocking frame. A first electric push rod is rotatably connected between the side surface of the blocking frame and the weighing hopper.

[0006] Preferably, a conveying assembly is arranged between the fixed frame and the bottom of the sealing machine. The conveying assembly includes two rotating shafts rotatably arranged on the base in sequence along the conveying direction. A conveyor belt is sleeved outside the two rotating shafts.

[0007] Preferably, the bag taking assembly includes a bag slot fixed to the base and a moving frame with a U-shaped structure slidably connected to the base. One end of the moving frame is fixedly installed with a fixing plate, and the other end of the moving frame is rotatably connected with a rotating plate. A moving plate is slidably connected to the rotating plate, and at least one suction cup is provided at the ends of the moving plate and the fixing plate.

[0008] Preferably, a second electric push rod is rotatably connected between the bottom of the rotating plate and the moving frame, and a first lead screw is rotatably provided on the rotating plate with one end screwed into the moving plate.

[0009] Preferably, a third lead screw is rotatably provided on the base, and the third lead screw is screwed through the middle of the moving frame.

[0010] Preferably, two groups of sliding seats are symmetrically and slidably connected to both sides of the bottom of the bag loading hopper. Two trapezoidal blocks are symmetrically and slidably connected to the bottom of the bag loading hopper. Struts are fixedly connected to both sides of the bottoms of the two trapezoidal blocks, and the four struts are respectively fixedly connected to the four sliding seats.

[0011] Preferably, the bag loading hopper is vertically slidably connected in the fixing frame, and a second lead screw is rotatably connected between the base and the fixing frame and is screwed through the bag loading hopper.

[0012] Preferably, two double-headed screws are rotatably connected to both sides of the bag loading hopper, and the two groups of sliding seats are respectively screwed and connected to both ends of the two double-headed screws.

[0013] Preferably, a rotating frame is rotatably connected to one side of each of the four sliding seats, and a clamping block corresponding to the strut is fixedly installed on one side of each of the four rotating frames. A sliding frame is slidably connected to the outside of the bottom of the bag loading hopper. A fourth electric push rod is fixedly connected between the top of the sliding frame and the bag loading hopper. Guide rails are provided on both sides of the sliding frame, and two sliders are slidably connected in each of the two guide rails. Connecting rods are rotatably connected between the four sliders and one side of the four rotating frames.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention is provided with a feed hopper and a guide plate. The telescopic movement of the third electric push rod drives the sliding of the sliding rod, so that the sliding rod drives the rotating rod to rotate through the chute, thereby driving the guide plate to rotate at the bottom of the feed hopper, so that both ends of the bottom of the feed hopper are alternately opened. In this way, when only one feeding device is used, fertilizer particles can be alternately added to two weighing hoppers, reducing the size of the working site required by the equipment and the equipment cost, and the feeding device can work continuously, and the operation is relatively simple.

[0015] (2) The present invention is provided with a bag taking assembly, and the fertilizer packaging bags are neatly placed in the bag grooves. The rotating plate rotates and the movable plate slides on the rotating plate, so that the suction cup on the movable plate approaches and presses against the packaging bag on the bag groove, and the suction cup adsorbs the packaging belt through negative pressure adsorption. Then the rotating plate is rotated to horizontal and the movable plate is slid, so that the suction cup on the movable plate drives the packaging bag to approach the suction cup on the fixed plate. The suction cups of the movable plate and the fixed plate adsorb the two sides of the packaging bag respectively, and then the top of the packaging bag is opened by moving the movable plate, and then the opened packaging bag is moved to the bottom of the bag loading bucket by moving the movable frame, thereby realizing automatic bag taking and opening operations of the packaging bag, which is highly efficient.

[0016] (3) The present invention is provided with a slide seat, a support rod and a trapezoidal block. After the opened packaging bag moves to the bottom of the bagging bucket, the second screw is rotated to move the bagging bucket downward in the fixed frame, so that the slide seat drives the support rod to extend into the packaging bag from the top of the packaging bag opening, and then the double-headed screw is rotated to make the two sets of slide seats move to both sides respectively, so that the four support rods completely open the bag opening of the packaging bag, and finally the packaging bag is set on the outside of the four support rods. When the four support rods move, the two trapezoidal blocks are driven to move to both sides, so that the bottom opening of the loading hopper is gradually enlarged, so that the bagging speed of the fertilizer particles is controlled according to the different bag opening sizes, and the packaging efficiency is improved. The size of the bottom opening of the loading hopper is always smaller than the range between the four support rods, so as to avoid the fertilizer spilling out during bagging.

[0017] (4) As mentioned above, after the slide seat drives the support rod to move to both sides to open the bag mouth of the packaging bag, the second screw is then rotated to move the bagging bucket up and down in the fixed frame, so that the bottom of the packaging bag contacts the top of the conveyor belt, so that the packaging bag can be fully unfolded during bagging to avoid wrinkles in the packaging bag during bagging, which may cause the fertilizer particles to overflow. In addition, by raising and lowering the bagging bucket, packaging bags of different specifications can be used, thereby increasing practicality.

[0018] (5) The present invention is provided with a slide, a slider, a connecting rod, a rotating frame and a clamping block. When the four support rods open the bag mouth of the packaging bag, the support rod of a higher packaging bag may not be able to fully unfold the bottom of the packaging bag. Therefore, the fourth electric push rod pushes the slide to move downward, so that the slide drives the slider to drive one end of the connecting rod to move downward, so that the other end of the connecting rod pushes the rotating frame to rotate on one side of the slide until the clamping block is pressed against the packaging bag and the support rod, so that the packaging bag and the support rod clamp the packaging bag, so as to avoid the fertilizer particles from impacting the bottom of the unexpanded packaging bag and causing the packaging bag to detach from the support rod at the beginning of bagging, thereby ensuring the smooth progress of the bagging operation. The slide is slidably connected to the guide rail on the slide and will not affect the movement of the slide and the support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a first stereogram of the present invention; Figure 2 This is the second three-dimensional view of the present invention; Figure 3 This is the first cross-sectional view of the present invention; Figure 4 This is the second cross-sectional view of the present invention; Figure 5 This is the three-dimensional view of the feed hopper assembly of the present invention; Figure 6 This is the three-dimensional view of the weighing hopper assembly of the present invention; Figure 7 This is the three-dimensional view of the bagging hopper assembly of the present invention; Figure 8 This is the cross-sectional view of the bagging hopper assembly of the present invention; In the figure: 1 - base, 2 - bag groove, 3 - fixing frame, 4 - feed hopper, 5 - guide plate, 6 - weighing hopper, 7 - weighing sensor, 8 - first electric push rod, 9 - sealing frame, 10 - bagging hopper, 11 - sealing machine, 12 - conveyor belt, 13 - rotating shaft, 14 - moving plate, 15 - rotating plate, 16 - second electric push rod, 17 - first lead screw, 18 - moving frame, 19 - second lead screw, 20 - suction cup, 21 - fixing plate, 22 - third electric push rod, 23 - rotating rod, 24 - fourth electric push rod, 25 - sliding frame, 26 - sliding rod, 27 - trapezoidal block, 28 - support rod, 29 - third lead screw, 30 - double-headed screw rod, 31 - sliding seat, 32 - slider, 33 - rotating frame, 34 - connecting rod, 35 - clamping block. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-8 As shown in the figure, the present invention provides the following technical solutions: A fully automatic double-scale hopper granular material packaging machine includes a base 1 and a fixing frame 3 fixedly installed on the base 1. A bag-taking assembly and a sealing machine 11 are respectively arranged on both sides of the fixing frame 3 on the base 1. Inside the fixing frame 3, a feed hopper 4, two weighing hoppers 6, and a bagging hopper 10 are arranged in sequence from top to bottom. The bottom of the feed hopper 4 is rotatably connected to a guide plate 5. A third electric push rod 22 is fixedly installed on one side of the feed hopper 4. The telescopic end of the third electric push rod 22 is fixedly installed with a sliding rod 26. One side of the guide plate 5 is fixedly connected to a rotating rod 23. A sliding groove slidably matched with the sliding rod 26 is opened on the rotating rod 23. The two weighing hoppers 6 are respectively located below both ends of the guide rod 5; A weighing sensor 7 is provided between the weighing hopper 4 and the fixed frame 3. The bottom of the weighing hopper 4 is rotatably connected to a blocking frame 9, and a first electric push rod 8 is rotatably connected between the side surface of the blocking frame 9 and the weighing hopper 4; A conveying assembly is provided between the fixed frame 3 and the bottom of the sealing machine 11. The conveying assembly includes two rotating shafts 13 rotatably arranged on the base 1 in sequence along the conveying direction, and a conveyor belt 12 is sleeved outside the two rotating shafts 13.

[0022] Based on the above disclosed structure, when packaging fertilizer particles: First, use the bag taking assembly to open the packaging bag and move it below the bag filling hopper 10, and the packaging bag is located above the conveyor belt 12. As Figure 4 shown, at this time, the third electric push rod 22 retracts its telescopic end, so that the sliding rod 26 drives the rotating rod 23 to rotate through the chute, so that the rotating rod 23 drives the guide plate 5 to rotate and tilt to the right, so that there is a gap between the right end of the guide plate 5 and the bottom of the feed hopper 4. Then use an external feeding device to add fertilizer particles to the feed hopper 4. The fertilizer particles enter the feed hopper 4 and slide and roll along the inner wall of the feed hopper and the guide plate 5 inclined to the right, so that the fertilizer particles roll from the gap between the right end of the guide plate 5 and the bottom of the feed hopper 4 into the weighing hopper 6 on the right side thereof. At this time, the blocking frame 9 keeps the bottom of the weighing hopper 6 in a closed state. After the fertilizer particles fall into the right weighing hopper 6, the corresponding weighing sensor 7 is used to detect the weight of the fertilizer particles in the right weighing hopper 6. When the weight of the fertilizer particles in the right weighing hopper 6 reaches the set value, start the third electric push rod 22 to push out its telescopic end, so that the sliding rod 26 drives the rotating rod 23 to rotate through the chute, so that the rotating rod 23 drives the guide plate 5 to rotate in the reverse direction, so that the guide plate 5 gradually tilts to the left, so that after the right end of the guide plate 5 is closed, there is a gap between the left end and the bottom of the feed hopper 4. At the same time, the first electric push rod 8 outside the right weighing hopper 6 pushes out its telescopic end, so that the blocking frame 9 at the bottom of the right weighing hopper 6 rotates, so that the bottom of the right weighing hopper 6 is opened. The weighed fertilizer particles in the right weighing hopper 6 roll along the blocking frame 9 into the bag filling hopper 10 and roll along the inner wall of the bag filling hopper 10 to the packaging bag at the bottom of the bag filling hopper 10. After the weighed fertilizer particles completely enter the packaging bag, the rotating shaft 13 drives the conveyor belt 12 to rotate, so that the filled packaging bag moves to the sealing machine 11 for sealing. The principle and use process of the sealing machine 11 are the same as those of the prior art and will not be elaborated here, so as to complete the packaging of fertilizer particles; While the fertilizer particles weighed in the right weighing hopper 6 are filled into the packaging bag, the external feeding device continuously adds fertilizer particles to the feeding hopper 4. The fertilizer particles enter the feeding hopper 4 and slide and roll along the inner wall of the feeding hopper and the guide plate 5 inclined to the left, so that the fertilizer particles roll from the gap between the right end of the guide plate 5 and the bottom of the feeding hopper 4 into the left weighing hopper 6 therein. After the fertilizer particles fall into the left weighing hopper 6, the corresponding weighing sensor 7 is used to detect the weight of the fertilizer particles in the left weighing hopper 6. During the process that the weight of the fertilizer particles in the left weighing hopper 6 reaches the set value, the fertilizer in the right weighing hopper 6 has also completed the filling operation, and the telescopic end of the first electric push rod 8 outside the right weighing hopper 6 is retracted, so that the blocking frame 9 closes the bottom of the right weighing hopper 6 again. Then, at this time, the telescopic end of the third electric push rod 22 can be retracted to close the left end of the guide plate 5 and then open the right end. Thus, according to the above steps, when the right weighing hopper 6 is weighing, the weighed fertilizer particles in the left weighing hopper 6 are filled, so that one weighing hopper 6 performs the weighing operation and the other weighing hopper 6 performs the bag filling operation, improving the production efficiency.

[0023] Regarding the above-mentioned bag taking assembly, preferably, the following structure is provided: The bag taking assembly includes a bag groove 2 fixed on the base 1 and a U-shaped moving frame 18 slidably connected to the base 1. One end of the moving frame 18 is fixedly installed with a fixing plate 21, and the other end of the moving frame 18 is rotatably connected with a rotating plate 15. A moving plate 14 is slidably connected to the rotating plate 15, and at least one suction cup 20 is provided at the ends of the moving plate 14 and the fixing plate 21; A second electric push rod 16 is rotatably connected between the bottom of the rotating plate 15 and the moving frame 18, and a first lead screw 17 with one end screwed into the moving plate 14 is rotatably provided on the rotating plate 15; A third lead screw 29 is rotatably provided on the base 1, and the third lead screw 29 is screwed through the middle of the moving frame 18.

[0024] As can be seen from the above, multiple packaging bags are neatly placed in the bag slot 2. Initially, the moving frame 18 is located outside the bag slot 2. When the second electric push rod 16 is started to retract its telescopic end, the rotating plate 15 rotates downward at the end of the moving frame 18, thereby driving the moving plate 14 and the suction cup 20 at the end of the moving plate 14 to rotate downward, so that the suction cup 20 at the end of the moving plate 14 faces the packaging bags in the bag slot 2. Then, the first lead screw 17 is driven to rotate, so that the moving plate 14 moves along the first lead screw 17 on the rotating plate 15, making the suction cup 20 on the moving plate 14 approach and press tightly against the edge of the bag mouth of the uppermost packaging bag. Then, air is sucked in so that the suction cup 20 on the moving plate 14 is fixed to the packaging bag through negative pressure adsorption. Then, the second electric push rod 16 is started to push out its telescopic end, so that the rotating plate 15 rotates to a horizontal state at the end of the moving frame 18, making the moving plate 14 and the suction cup 20 on the moving plate 14 drive the packaging bag to stand up. At this time, the suction cup 20 on the fixing plate 21 and the suction cup 20 on the moving plate 14 are in corresponding positions. Then, the first lead screw 17 is driven to rotate, so that the moving plate 14 moves along the first lead screw 17 on the rotating plate 15, making the suction cup 20 on the moving plate 14 drive the packaging bag to approach and press tightly against the suction cup 20 on the fixing plate 21. Then, air is sucked in so that the suction cup 20 on the fixing plate 21 performs negative pressure adsorption on the other side of the packaging bag. Then, the first lead screw 17 is driven to rotate in the reverse direction, so that the moving plate 14 drives the suction cup 20 on the moving plate 14 and one side of the packaging bag to move away from the suction cup 20 on the fixing plate 21, thereby opening the bag mouth of the packaging bag; Then, the third lead screw 29 is driven to rotate, so that the moving frame 18 moves to the middle part below the bagging hopper 10, thereby driving the fixing plate 21, the rotating plate 15 and the moving plate 14 to move, and further moving the packaging bag between the suction cups 20 on the fixing plate 21 and the moving plate 14 to the middle part of the bagging hopper 10, and the bag mouth of the packaging bag is in an open state.

[0025] In addition, in order to completely open the bag mouth of the packaging bag, the following structure is preferably provided: Two groups of sliding seats 31 are symmetrically and slidably connected to both sides of the bottom of the bagging hopper 10. Two trapezoidal blocks 27 are symmetrically and slidably connected to the bottom of the bagging hopper 10. Two support rods 28 are fixedly connected to both sides of the bottom of the two trapezoidal blocks 27. The four support rods 28 are respectively fixedly connected to the four sliding seats 31; The bagging hopper 10 is vertically slidably connected to the fixed frame 3. A second lead screw 19 that penetrates the bagging hopper 10 in a screwed manner is rotatably connected between the base 1 and the fixed frame 3; Two double-headed screws 30 are rotatably connected to both sides of the bagging hopper 10. Two groups of sliding seats 31 are respectively screwed and connected to both ends of the two double-headed screws 30.

[0026] As can be seen from the above, after the open packaging bag moves under the bagging hopper 10, the second lead screw 19 is driven to rotate, so that the bagging hopper 10 moves downward in the fixed frame 3, driving the four sliding seats 31 to move downward, and then driving the bottoms of the four support rods 28 to extend into the open packaging bag. Then, the double-headed screw 30 is driven to rotate, so that the two groups of sliding seats 31 drive the four support rods 28 to move towards both ends respectively, so that the four support rods 28 gradually open the bag mouth of the packaging bag from the middle to both sides, and finally the bag mouth of the packaging bag is sleeved outside the four support rods 28. In this way, the moving distance of the sliding seat 31 can be controlled according to the size of the bag mouth of the packaging bag, so as to control the range between the four support rods 28, making it applicable to packaging bags of different sizes and increasing the practicability; In addition, after the fertilizer particles enter the bagging hopper 10, they roll down along the inner wall of the bagging hopper 10 to the inclined sides of the two trapezoidal blocks 27, and finally fall into the packaging bag from between the two trapezoidal blocks 27. When the two groups of sliding seats 31 drive the four support rods 28 to move towards both ends, the two trapezoidal blocks 27 also move towards both sides, thus changing the distance between the two trapezoidal blocks 27. In this way, the filling rate of the fertilizer can be controlled according to the size of the bag mouth of the packaging bag, thereby improving the overall packaging efficiency. Moreover, the positions of the four support rods 28 make the opening size of the packaging bag always smaller than the range between the four support rods, avoiding the fertilizer particles spilling out during bagging and affecting the packaging quality.

[0027] In addition, after the two groups of sliding seats 31 drive the four support rods 28 to move towards both sides to open the bag mouth of the packaging bag, the second lead screw 19 can be rotated to move the bagging hopper 10 up and down in the fixed frame 3, so that the bottom of the packaging bag contacts the top of the conveyor belt 13. In this way, it is avoided that the packaging bag has wrinkles during bagging, resulting in a decrease in the actual volume of the packaging bag and causing the fertilizer particles to overflow. Moreover, by lifting the bagging hopper 10, packaging bags of different height specifications can be applied, increasing the practicability.

[0028] In addition, when the four support rods 28 open the bag mouth of the packaging bag, for relatively high-specification packaging bags, the support rod 29 may not be able to fully unfold the bottom of the packaging bag. To avoid the situation where the fertilizer particles impact the unfolded bottom of the packaging bag at the beginning of bagging, causing the packaging bag to separate from the support rod 28, a rotating frame 33 is rotatably connected to one side of each of the four sliding seats 31, and a clamping block 35 corresponding to the support rod 28 is fixedly installed on one side of each of the four rotating frames 33. A sliding frame 25 is slidably connected to the outer side of the bottom of the bagging hopper 10, and a fourth electric push rod 24 is fixedly connected between the top of the sliding frame 25 and the bagging hopper 10. Guide rails are provided on both sides of the sliding frame 25, and two sliders 32 are slidably connected in each of the two guide rails. A connecting rod 34 is rotatably connected between each of the four sliders 32 and one side of each of the four rotating frames 33. Based on this, after the four support rods 28 open the bag mouth of the packaging bag, the fourth electric push rod 24 is started to push the sliding frame 25 downward, so that the sliding frame 25 drives the four sliders 32 in the guide rails on both sides to move downward, thereby causing the tops of the four connecting rods 34 to move downward, and further causing the other ends of the four connecting rods 34 to push the four rotating frames 33 to rotate downward on one side of each of the four sliding seats 31, so that the four rotating frames 33 drive the four clamping blocks 35 to approach the four support rods 28 respectively, so that the four groups of clamping blocks 35 and the support rods 28 clamp the edges of the bag mouth of the packaging bag respectively, thereby avoiding the situation where the fertilizer particles impact the unfolded bottom of the packaging bag at the beginning of bagging, causing the packaging bag to separate from the support rod 28, and increasing the practicability of the equipment. In addition, the four sliders 32 are respectively slidably connected in the two guide rails on both sides of the sliding frame 25. When the double-headed screw 30 drives the sliding seat 31 to move, the sliding seat 31 drives the slider 32 to slide in the guide rail through the rotating frame 33 and the connecting rod 34. Therefore, the setting of the slider 32 will not affect the sliding seat 31 to drive the support rod 28 to open the bag mouth of the packaging bag, and can ensure the smooth progress of the operation of opening the bag mouth of the packaging bag.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic double-hopper granular material packing machine, characterized in that: It includes a base (1) and a fixing frame (3) fixedly installed on the base (1). On both sides of the fixing frame (3) on the base (1), a bag-taking assembly and a sealing machine (11) are respectively provided. Inside the fixing frame (3), a feeding hopper (4), two weighing hoppers (6) and a bagging hopper (10) are successively arranged from top to bottom. The bottom of the feeding hopper (4) is rotatably connected to a guide plate (5). On one side of the feeding hopper (4), a third electric push rod (22) is fixedly installed. The telescopic end of the third electric push rod (22) is fixedly installed with a sliding rod (26). One side of the guide plate (5) is fixedly connected to a rotating rod (23). A sliding groove that slidably cooperates with the sliding rod (26) is opened on the rotating rod (23). The two weighing hoppers (6) are respectively located below both ends of the guide rod (5).

2. The fully automatic double-hopper granular material packaging machine according to claim 1, wherein: A weighing sensor (7) is provided between the weighing hopper (4) and the fixing frame (3). The bottom of the weighing hopper (4) is rotatably connected to a blocking frame (9). A first electric push rod (8) is rotatably connected between the side surface of the blocking frame (9) and the weighing hopper (4).

3. A fully automatic double-hopper granular material packaging machine according to claim 1, characterized in that: A conveying assembly is provided between the fixing frame (3) and the bottom of the sealing machine (11). The conveying assembly includes two rotating shafts (13) rotatably arranged on the base (1) in sequence along the conveying direction. A conveyor belt (12) is sleeved outside the two rotating shafts (13).

4. A fully automatic double-hopper granule packaging machine according to claim 1, characterized in that: The bag-taking assembly includes a bag slot (2) fixed on the base (1) and a U-shaped moving frame (18) slidably connected to the base (1). One end of the moving frame (18) is fixedly installed with a fixing plate (21). The other end of the moving frame (18) is rotatably connected to a rotating plate (15). A moving plate (14) is slidably connected to the rotating plate (15). At least one suction cup (20) is provided at the ends of the moving plate (14) and the fixing plate (21).

5. A fully automatic double-hopper granular material packaging machine according to claim 4, characterized in that: A second electric push rod (16) is rotatably connected between the bottom of the rotating plate (15) and the moving frame (18). A first lead screw (17) with one end screwed into the moving plate (14) is rotatably provided on the rotating plate (15).

6. A fully automatic double-hopper granular material packaging machine according to claim 4, characterized in that: A third lead screw (29) is rotatably provided on the base (1). The third lead screw (29) is screwed through the middle of the moving frame (18).

7. The full-automatic double-hopper granular material packaging machine according to claim 4, characterized in that: On both sides of the bottom of the bagging hopper (10), two groups of sliding seats (31) are symmetrically slidably connected. On the bottom of the bagging hopper (10), two trapezoidal blocks (27) are symmetrically slidably connected. On both sides of the bottom of the two trapezoidal blocks (27), support rods (28) are fixedly connected. The four support rods (28) are respectively fixedly connected to the four sliding seats (31).

8. A fully automatic double-hopper granular material packaging machine according to claim 7, characterized in that: The bagging hopper (10) is vertically slidably connected inside the fixing frame (3). A second lead screw (19) that is screwed through the bagging hopper (10) is rotatably connected between the base (1) and the fixing frame (3).

9. The fully automatic double-hopper granular material packaging machine according to claim 7, characterized in that: Two double-headed lead screws (30) are rotatably connected to both sides of the bagging hopper (10). The two groups of sliding seats (31) are respectively screwed to both ends of the two double-headed lead screws (30).

10. A fully automatic double-hopper granular material packaging machine according to claim 7, characterized in that: One side of each of the four sliding seats (31) is rotatably connected to a rotating frame (33). One side of each of the four rotating frames (33) is fixedly installed with a clamping block (35) corresponding to the support rod (28). A sliding frame (25) is slidably connected to the outer side of the bottom of the bagging hopper (10). A fourth electric push rod (24) is fixedly connected between the top of the sliding frame (25) and the bagging hopper (10). Guide rails are provided on both sides of the sliding frame (25). Two sliders (32) are slidably connected in each of the two guide rails. Link rods (34) are rotatably connected between the four sliders (32) and one side of the four rotating frames (33).

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