A weighing device for cereal product packaging

Abstract

The application provides a kind of grain product packaging weighing device, it is related to grain packaging technical field, including frame, the inner cavity upper side of frame is provided with storage hopper, the inner cavity middle part of frame is provided with weighing hopper, the inner cavity lower side of frame is provided with support beam, the upper end surface of support beam is installed with weighing disc, the center of weighing disc and support beam is hollow structure, the bottom of weighing hopper passes from the center of the hollow of weighing disc and support beam, and it extends downward, the upper end of weighing hopper is fixedly installed with support disc, and support disc is located in the upper end middle part of weighing disc;Lifting assembly is used to drive weighing hopper to carry out lifting movement.The utility model drives weighing hopper to lift through lifting assembly, and hydraulic push rod jacks weighing hopper when discharging, so that weighing hopper and weighing disc are separated, avoid the weight of discharging directly pressing on weighing disc, reduce impact and wear, so as to protect weighing disc from impact damage, so as to effectively improve weighing precision and equipment service life.

Description

Technical Field

[0001] This utility model relates to the field of grain packaging technology, specifically a weighing device for grain product packaging. Background Technology

[0002] In the packaging of grain products, it is usually necessary to weigh the grain to ensure that the weight of each bag of product meets the standard. The weighing device is a key piece of equipment to ensure the accuracy of the packaged weight. Traditional weighing devices usually use a fixed weighing hopper, in which the grain falls directly from the storage hopper into the weighing hopper, and the weighing hopper is placed statically on the weighing pan for weight measurement. However, this design has obvious drawbacks: when the grain is fed, the impact force and the weight of the accumulated grain act directly on the weighing pan. Long-term use can easily lead to damage to the weighing pan sensor or a decrease in accuracy, affecting the weighing accuracy and the lifespan of the equipment.

[0003] To address the aforementioned problems, we propose a weighing device for grain product packaging. Utility Model Content

[0004] To address the problems in the background art, this utility model provides a weighing device for packaging grain products.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A weighing device for packaging grain products includes a frame, a storage hopper on the upper side of the inner cavity of the frame, a weighing hopper in the middle of the inner cavity of the frame, a support beam on the lower side of the inner cavity of the frame, a weighing pan mounted on the upper surface of the support beam, the center of the weighing pan and the support beam being hollow, the bottom of the weighing hopper passing through the hollow center of the weighing pan and the support beam and extending downward, and a support plate fixedly mounted on the upper end of the weighing hopper, the support plate being located in the middle of the upper end of the weighing pan; A lifting assembly is used to drive the weighing bucket to move up and down. The lifting assembly includes multiple sets of hydraulic push rods, which are located at the bottom of the support plate and are distributed in a circular array.

[0006] Preferably, the bottom of the storage hopper is provided with a discharge pipe, the inner cavity of the storage hopper is provided with a screw feeder, the bottom of the screw feeder is located in the inner middle of the discharge pipe, and the top of the screw feeder is provided with a servo motor, which is fixedly installed in the middle of the top of the storage hopper.

[0007] Preferably, the inner cavity of the frame is provided with multiple sets of limiting guide rods, which are arranged in a ring array on the upper end of the support plate and are all slidably connected to the support plate.

[0008] Preferably, the bottom surface of the support plate is provided with multiple sets of limiting sleeves, and the multiple sets of limiting sleeves are respectively disposed at the top of multiple sets of hydraulic push rods, and the output end of the hydraulic push rod is movably installed in the middle of the inner side of the limiting sleeve.

[0009] Preferably, the inner side of the support beam has multiple sets of through holes, which are respectively arranged at the upper middle part of multiple sets of hydraulic push rods, and the output end of the hydraulic push rod passes through the through holes.

[0010] Preferably, a support block is provided at the bottom of the hydraulic push rod, and the support block is fixedly installed at the bottom of the inner cavity of the frame.

[0011] Preferably, a feed pipe is provided on one side of the top of the storage hopper.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In this solution, the weighing hopper is raised and lowered by a lifting assembly. During material feeding, a hydraulic push rod lifts the weighing hopper, separating it from the weighing pan. This prevents the weight of the material from directly pressing on the weighing pan, reducing impact and wear, and protecting the weighing pan from damage. Once enough material has been fed, the hydraulic push rod descends, causing the weighing hopper to fall onto the weighing pan for weighing. Simultaneously, a screw feeder adjusts the feeding flow rate, further reducing the impact on the weighing pan and enabling precise replenishment of material to meet the weighing standards. This effectively improves weighing accuracy and extends the equipment's lifespan. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the lifting assembly and weighing hopper in this utility model.

[0014] In the diagram: 1. Frame; 2. Storage hopper; 3. Discharge pipe; 4. Screw feeder; 5. Servo motor; 6. Feed pipe; 7. Weighing hopper; 8. Support plate; 9. Support beam; 10. Weighing plate; 11. Limiting guide rod; 12. Hydraulic push rod; 13. Limiting sleeve; 14. Through hole; 15. Support block. Detailed Implementation

[0015] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows: Example: Refer to Figure 1 - Figure 3As shown, a weighing device for packaging grain products according to this embodiment includes a frame 1. A storage hopper 2 is provided on the upper side of the inner cavity of the frame 1. A weighing hopper 7 is provided in the middle of the inner cavity of the frame 1 for receiving and weighing grains. A support beam 9 is provided on the lower side of the inner cavity of the frame 1. A weighing pan 10 is installed on the upper surface of the support beam 9. The center of both the weighing pan 10 and the support beam 9 is hollow. The bottom of the weighing hopper 7 passes through the hollow center of the weighing pan 10 and the support beam 9 and extends downward. A support plate 8 is fixedly installed on the upper end of the weighing hopper 7. The support plate 8 is located in the middle of the upper end of the weighing pan 10. The lifting assembly is used to drive the weighing hopper 7 to move up and down. The lifting assembly includes multiple sets of hydraulic push rods 12, which are located at the bottom of the support plate 8 and are arranged in a circular array. The lifting and lowering of the weighing hopper 7 is controlled by the extension and retraction of the hydraulic push rods 12, so as to lift the weighing hopper 7 to protect the weighing plate 10 when unloading.

[0016] During material feeding, the hydraulic push rod 12 pushes the support plate 8 upward, causing the support plate 8 to separate from the weighing plate 10, thus preventing the impact force generated during material feeding from acting on the weighing plate 10 and causing damage.

[0017] In actual use, a sensor is installed in the weighing hopper 7. When the weight is detected to be within the specified range, the weighing hopper 7 is lowered onto the weighing pan 10 for weighing. At the same time, the flow rate of the feed is adjusted to slowly replenish the grain until the weight reaches the standard and then the feed stops.

[0018] In some examples, the bottom of the storage hopper 2 is provided with a discharge pipe 3 for grain to flow out; a screw feeder 4 is provided in the middle of the inner cavity of the storage hopper 2, the bottom of the screw feeder 4 is located in the middle of the inner side of the discharge pipe 3, and a servo motor 5 is provided on the top of the screw feeder 4. The servo motor 5 is fixedly installed in the middle of the top of the storage hopper 2. The servo motor 5 drives the screw feeder 4 to rotate, controlling the discharge speed and flow rate of grain from the discharge pipe 3 to ensure accurate feeding.

[0019] In some examples, multiple sets of limiting guide rods 11 are provided in the middle of the inner cavity of the frame 1. The multiple sets of limiting guide rods 11 are arranged in a ring array on the upper end of the support plate 8 and are all slidably connected to the support plate 8. The limiting guide rods 11 provide guidance during the lifting and lowering of the weighing hopper 7, preventing the support plate 8 and the weighing hopper 7 from tilting and ensuring smooth lifting and lowering.

[0020] In some examples, the bottom surface of the support plate 8 is provided with multiple sets of limiting sleeves 13. The multiple sets of limiting sleeves 13 are respectively set at the top of multiple sets of hydraulic push rods 12. The output end of the hydraulic push rod 12 is movably installed in the middle of the inner side of the limiting sleeve 13. The limiting sleeve 13 is used to limit the output end of the hydraulic push rod 12, enhance the connection stability, and prevent dislocation during lifting. When lifting is not required, the output end of the hydraulic push rod 12 does not contact the limiting sleeve 13, so as to avoid affecting the accuracy of weighing.

[0021] In some examples, multiple sets of through holes 14 are provided on the inner side of the support beam 9. The multiple sets of through holes 14 are respectively set in the middle of the upper end of multiple sets of hydraulic push rods 12. The output end of the hydraulic push rod 12 passes through the through holes 14. The through holes 14 provide the hydraulic push rod 12 with room for movement, ensuring smooth lifting and lowering.

[0022] In some examples, a support block 15 is provided at the bottom of the hydraulic push rod 12. The support block 15 is fixedly installed at the bottom of the inner cavity of the frame 1. The support block 15 plays a role in stabilizing and supporting the hydraulic push rod 12, thereby enhancing its stability.

[0023] In some examples, a feed pipe 6 is provided on one side of the top of the storage hopper 2 to replenish grain into the storage hopper 2 and maintain continuous feeding.

[0024] The working principle of this utility model is as follows: During operation, grains enter the storage hopper 2 through the feed pipe 6 for storage. When weighing and packaging are required, the valve at the bottom of the discharge pipe 3 is opened first, and then the servo motor 5 is started to drive the screw feeder 4 to rotate, controlling the grains to fall into the weighing hopper 7 through the discharge pipe 3.

[0025] During the feeding process, the hydraulic push rod 12 lifts the weighing hopper 7, causing the support plate 8 to detach from the weighing plate 10, thus preventing the weight of the grain from directly acting on the weighing plate 10 and reducing the risk of impact and damage. When the feeding reaches the preset amount, the hydraulic push rod 12 descends, and the weighing hopper 7 falls onto the weighing plate 10 via the support plate 8 for weighing. During weighing, the rotation speed of the screw feeder 4 can be adjusted to control the feeding flow rate, thereby replenishing the material in the weighing hopper 7 and achieving accurate weighing until the weight reaches the standard. At this point, the feeding and weighing work is completed. After weighing, the valve at the bottom of the weighing hopper 7 is opened, and the grain is discharged from the bottom of the weighing hopper 7 for packaging.

[0026] During the lifting process, the limiting guide rod 11 is used to limit the movement, which can ensure the stability of the lifting process and avoid tilting or deviation, thereby improving the safety of weighing and packaging. The entire device can achieve efficient and accurate grain weighing and packaging through lifting and precise material feeding control.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A weighing device for packaging grain products, characterized in that, The machine includes a frame (1), a storage hopper (2) is provided on the upper side of the inner cavity of the frame (1), a weighing hopper (7) is provided in the middle of the inner cavity of the frame (1), a support beam (9) is provided on the lower side of the inner cavity of the frame (1), a weighing pan (10) is installed on the upper surface of the support beam (9), the center of the weighing pan (10) and the support beam (9) are both hollow structures, the bottom of the weighing hopper (7) passes through the hollow center of the weighing pan (10) and the support beam (9) and extends downward, and a support plate (8) is fixedly installed on the upper end of the weighing hopper (7), the support plate (8) is located in the middle of the upper end of the weighing pan (10); The lifting assembly is used to drive the weighing bucket (7) to perform lifting movements. The lifting assembly includes multiple sets of hydraulic push rods (12), which are located at the bottom of the support plate (8) and are distributed in a ring array.

2. The weighing device for packaging grain products according to claim 1, characterized in that, The bottom of the storage hopper (2) is provided with a discharge pipe (3), and the middle of the inner cavity of the storage hopper (2) is provided with a screw feeder (4). The bottom of the screw feeder (4) is located in the middle of the inner side of the discharge pipe (3). The top of the screw feeder (4) is provided with a servo motor (5), and the servo motor (5) is fixedly installed in the middle of the top of the storage hopper (2).

3. A weighing device for packaging grain products according to claim 2, characterized in that, The inner cavity of the frame (1) is provided with multiple sets of limiting guide rods (11). The multiple sets of limiting guide rods (11) are arranged in a ring array on the upper end of the support plate (8) and are all slidably connected to the support plate (8).

4. A weighing device for packaging grain products according to claim 3, characterized in that, The bottom surface of the support plate (8) is provided with multiple sets of limiting sleeves (13), and the multiple sets of limiting sleeves (13) are respectively provided at the top of multiple sets of hydraulic push rods (12). The output end of the hydraulic push rod (12) is movably installed in the middle of the inner side of the limiting sleeve (13).

5. A weighing device for packaging grain products according to claim 4, characterized in that, The inner side of the support beam (9) has multiple sets of through holes (14), and the multiple sets of through holes (14) are respectively arranged in the middle of the upper end of multiple sets of hydraulic push rods (12). The output end of the hydraulic push rod (12) passes through the through holes (14).

6. A weighing device for packaging grain products according to claim 5, characterized in that, The bottom of the hydraulic push rod (12) is provided with a support block (15), which is fixedly installed at the bottom of the inner cavity of the frame (1).

7. A weighing device for packaging grain products according to claim 2, characterized in that, A feed pipe (6) is provided on one side of the top of the storage hopper (2).

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