A small package dynamic scale
By introducing structures such as side frames, buffer plates, and dampers into the dynamic scale, the problem of packaging bags being damaged due to the direct push of unqualified materials detected by the dynamic scale is solved. This achieves material buffering, guidance, and protection, improving practicality and processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG KEDA METROLOGY TECH CO LTD
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-03
AI Technical Summary
Existing dynamic scales may cause packaging bags to break and materials to splatter when directly pushing down non-conforming materials, making them impractical.
A small-package dynamic scale was designed, which includes a side frame, a buffer plate and a damper structure. Through the cooperation of a protective baffle and a torsion spring, the scale achieves buffering guidance and buffering protection of the material, preventing the material from falling directly to the ground.
It effectively prevents the packaging bag from breaking when the material falls, improves practicality and processing efficiency, and ensures that the material falls accurately into the side frame for subsequent processing.
Smart Images

Figure CN224455944U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dynamic scale technology, specifically a small package dynamic scale. Background Technology
[0002] A dynamic scale is used to weigh items in real time when they are transported to it, which helps to determine the weight information of the items in a timely manner.
[0003] Currently, most dynamic scales on the market use a conveyor belt to transport materials for weighing laterally during operation. The materials are then weighed and tested. If a product fails to meet the weight requirement during the test, a pusher plate will push the material off the scale. However, since the materials are often packaged in bags, the impact of the pushed material falling to the ground can cause the bags to break, resulting in material splashing. Overall, the scales are not very practical.
[0004] Therefore, this utility model provides a dynamic scale for small packages. Utility Model Content
[0005] To overcome the shortcomings of existing technologies and solve the problem that pushing unqualified materials directly off the dynamic scale may cause material damage, this utility model proposes a small package dynamic scale.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A small package dynamic scale of this utility model includes a base frame, a workbench fixed at the top of the base frame, and a side frame at the front end of the workbench. A discharge port is opened on one side of the bottom of the side frame. A first shaft is rotatably connected to the inner side of the top of the side frame, and a protective baffle is sleeved on the outer ring surface of the middle section of the first shaft. A first torsion spring is sleeved on the outer ring surface of one end of the first shaft. A buffer plate is distributed at the bottom of the inner cavity of the side frame, and a connecting ear is fixed on one side of the bottom of the buffer plate. A first rotating rod is connected to the bottom of the connecting ear, and a second rotating rod is rotatably connected to the other end of the first rotating rod through a bearing seat. A connecting rod is fixed to the side wall of the second rotating rod, and a first damper is rotatably connected to the middle of the bottom end of the connecting rod. A second damper is rotatably connected to one end surface of the first rotating rod. A second shaft is fixedly connected to one bottom end of the buffer plate, and a second torsion spring is sleeved on the outer ring surface of one end of the second shaft.
[0007] Furthermore, a side plate is fixedly provided on one side of the top of the workbench, and a cylinder is fixedly provided on one end of the side plate, with a push plate connected to the output end of the cylinder.
[0008] Furthermore, a drive motor is fixedly mounted on the inner side wall of the base frame, and the output end of the drive motor is connected to a first pulley. An internal toothed belt is fitted on the outer surface of the first pulley, and a second pulley is connected to the inner side of the other end of the internal toothed belt.
[0009] Furthermore, a drive roller is fixedly connected to one end of the second pulley, and a driven roller is rotatably connected to the inner side of the worktable away from the drive roller. A conveyor belt is sleeved on the outer surface of the drive roller.
[0010] Furthermore, the protective baffle is rotatably connected to the side frame via the first shaft, and the protective baffle is generally L-shaped.
[0011] Furthermore, the buffer plate and the side frame are inclinedly distributed, and one end of the buffer plate is rotatably connected to the side frame through a second shaft.
[0012] Furthermore, one end of the transmission roller is fixedly connected to the second pulley, and the other end of the transmission roller is rotatably connected to the worktable through a bearing seat.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The small package dynamic scale described in this utility model, through the setting of side frame, buffer plate and damper and other structures, can facilitate the subsequent cushioning and protection of the pushed material, and prevent the outer packaging from being damaged due to excessive impact force when the material falls, thus making it more practical overall.
[0015] 2. The small package dynamic scale described in this utility model, through the protective baffle, shaft and torsion spring and other structures, can facilitate the subsequent guiding of the pushed material, so that the pushed material can fall accurately into the side frame, which facilitates the subsequent cushioning and protection of the pushed material, with better effect and higher efficiency. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a side view of the base frame structure of this utility model;
[0019] Figure 3 This is a side view diagram of the side frame structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the side frame of this utility model;
[0021] Figure 5 This is a side view of the buffer plate structure of this utility model.
[0022] In the diagram: 1. Base frame; 2. Workbench; 3. Side frame; 4. Discharge port; 5. First shaft; 6. Protective baffle; 7. First torsion spring; 8. Buffer plate; 9. Connecting lug; 10. First rotating rod; 11. Second rotating rod; 12. Connecting rod; 13. First damper; 14. Second damper; 15. Second shaft; 16. Second torsion spring; 17. Side plate; 18. Cylinder; 19. Push plate; 20. Drive motor; 21. First pulley; 22. Internal toothed belt; 23. Second pulley; 24. Transmission roller; 25. Driven roller; 26. Conveyor belt. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] Example 1: As Figures 1 to 5 As shown, this utility model discloses a small package dynamic scale, including a base frame 1, a workbench 2 fixedly mounted on the top of the base frame 1, a side frame 3 at the front end of the workbench 2, a discharge port 4 on one side of the bottom of the side frame 3, a first shaft 5 rotatably connected to the inner side of the top of the side frame 3, a protective baffle 6 sleeved on the outer ring surface of the middle section of the first shaft 5, a first torsion spring 7 sleeved on the outer ring surface of one end of the first shaft 5, a buffer plate 8 distributed at the bottom of the inner cavity of the side frame 3, and a connecting plate 8 fixedly mounted on one side of the bottom of the buffer plate 8. The connecting ear 9 is connected to the bottom of the connecting ear 9 and a first rotating rod 10 is connected to the other end of the first rotating rod 10 via a bearing seat and a second rotating rod 11 is rotatably connected to it. A connecting rod 12 is fixedly provided on the side wall of the second rotating rod 11 and a first damper 13 is rotatably connected to the middle of the bottom end of the connecting rod 12. A second damper 14 is rotatably connected to one end surface of the first rotating rod 10. A second shaft 15 is fixedly connected to one bottom end of the buffer plate 8 and a second torsion spring 16 is sleeved on the outer ring surface of one end of the second shaft 15.
[0025] During operation, when the pushed material moves above the side frame 3, it contacts one side of the protective baffle 6 extending from its top. Then, under gravity, the protective baffle 6 rotates along the top corner of the side frame 3 via the first shaft 5. During this rotation, the first torsion spring 7 deforms, generating a counterforce. Simultaneously, as the protective baffle 6 rotates, the material moves along its tilt angle and is fed into the inner side of the side frame 3. Once inside the side frame 3, the counterforce generated by the deformation of the first torsion spring 7 causes the protective baffle 6 to reset. The material then falls onto the inclined buffer plates 8. It is noteworthy that there is a certain gap between the buffer plates 8 and the side frame 3; that is, the buffer plates 8 do not contact the inner wall of the side frame 3 during the swinging process. Furthermore, when the protective baffle 6 rotates, the distance between the right end of the protective baffle 6 and the top of the inclined surface of the buffer plate 8 is relatively short, effectively preventing... When materials fall and break due to height difference, the buffer plate 8, under the action of gravity, will drive the second shaft 15 to rotate along the bottom side of the side frame 3, thereby deforming the second torsion spring 16 and generating a reverse force. At the same time, when the buffer plate 8 moves, it pushes the first rotating rod 10 through the connecting ear 9, which in turn pushes the second rotating rod 11. Then, the second rotating rod 11 rotates along the bottom of the side frame 3 through the connecting ear 9. When the first rotating rod 10 rotates along one end of the second rotating rod 11, it will cause the second damper 14 to deform accordingly. Since the two second rotating rods 11 are connected by the connecting rod 12, when the second rotating rod 11 moves, it will cause the connecting rod 12 to push the first damper 13, thereby deforming the first damper 13. Then, the combination of the two dampers and the reverse force generated by the deformation of the second torsion spring 16 can achieve the purpose of buffering and protection, preventing the unqualified materials from falling directly to the bottom and causing damage to the outer packaging.
[0026] Furthermore, a side plate 17 is fixedly provided on one side of the top of the workbench 2, and a cylinder 18 is fixedly provided at one end of the side plate 17. The output end of the cylinder 18 is connected to a push plate 19. A drive motor 20 is fixedly provided on the inner wall of the base frame 1, and the output end of the drive motor 20 is connected to a first pulley 21. An internal toothed belt 22 is sleeved on the outer surface of the first pulley 21, and a second pulley 23 is connected to the inner side of the other end of the internal toothed belt 22. A transmission roller 24 is fixedly connected to one end of the second pulley 23. A driven roller 25 is connected to the inner side of the workbench 2 away from the transmission roller 24. A conveyor belt 26 is sleeved on the outer surface of the transmission roller 24.
[0027] During operation, the drive motor 20 operates, causing the first pulley 21 connected to its output end to rotate. At this time, the rotation of the first pulley 21 drives the internal toothed belt 22 to move, which in turn drives the second pulley 23 to rotate. Then, the rotation of the second pulley 23 drives the transmission roller 24 to rotate, and the rotation of the transmission roller 24 realizes the movement of the conveyor belt 26. Thus, the movement of the conveyor belt 26 is used to laterally transport materials. The driven roller 25 can assist the movement of the conveyor belt 26. Then, by measuring and analyzing the dynamic force of the material, the total weight and partial weight of the material in motion are calculated. When the weight of the conveyed material is found to be below standard, the cylinder 18 operates to push the push plate 19, and the movement of the push plate 19 pushes the conveyed material away from the surface of the conveyor belt 26, causing it to fall into the side frame 3 for subsequent centralized processing.
[0028] Furthermore, the protective baffle 6 is rotatably connected to the side frame 3 via the first shaft 5, and the protective baffle 6 is L-shaped as a whole;
[0029] During operation, when the material is conveyed to the top of the side frame 3, the protective baffle 6 will block the movement trajectory of the material when it is pushed out. Then the material falls on the protective baffle 6 and presses down on the protective baffle 6, causing the protective baffle 6 to rotate along the side frame 3 via the first shaft 5.
[0030] Furthermore, the buffer plate 8 and the side frame 3 are inclinedly distributed, and one end of the buffer plate 8 is rotatably connected to the side frame 3 through the second shaft 15;
[0031] When the buffer plate 8 is subjected to longitudinal force, it will rotate along the inner wall of the side frame 3 through the second shaft 15, which facilitates the movement of the damper and other structures in the future.
[0032] One end of the transmission roller 24 is fixedly connected to the second pulley 23, and the other end of the transmission roller 24 is rotatably connected to the worktable 2 through a bearing seat;
[0033] During operation, the second pulley 23 rotates under the action of the internal toothed belt 22, thereby realizing the movement of the transmission roller 24 through the rotation of the second pulley 23, and then realizing the movement of the conveyor belt 26 through the movement of the transmission roller 24.
[0034] Specific working principle: The drive motor 20 rotates the first pulley 21, driving the internal toothed belt 22 to move. The internal toothed belt 22 then drives the second pulley 23 to rotate, which in turn drives the transmission roller 24 to rotate. The rotation of the transmission roller 24 moves the conveyor belt 26, thus using the movement of the conveyor belt 26 to laterally transport materials. When the weight of the transported material is detected to be below standard, the cylinder 18 activates to push the push plate 19, which in turn pushes the transported material away from the weighing body. When the pushed material moves to the top of the side frame 3, it comes into contact with the protective baffle 6. The protective baffle 6 then rotates along the top corner of the side frame 3 under the action of gravity via the first shaft 5. During the rotation of the protective baffle 6, the first torsion spring 7 deforms, generating a reverse force. Simultaneously, as the protective baffle 6 rotates, the material moves along the surface of the protective baffle 6 and is input into the inside of the side frame 3. When the material enters the side frame 3, the reverse force generated by the deformation of the first torsion spring 7... Under the force, the protective baffle 6 will be reset, and then the material will fall onto the inclined buffer plate 8. At this time, the buffer plate 8 will rotate along the bottom side of the side frame 3 under the action of gravity, thereby deforming the second torsion spring 16 and causing it to generate a reverse force. At the same time, when the buffer plate 8 moves, it pushes the first rotating rod 10 through the connecting ear 9, which in turn pushes the second rotating rod 11. Then the second rotating rod 11 rotates along the bottom of the side frame 3 through the connecting ear 9. When the rotating rod 10 rotates along one end of the second rotating rod 11, it will cause the second damper 14 to deform accordingly. Since the two second rotating rods 11 are connected by the connecting rod 12, when the second rotating rod 11 moves, the connecting rod 12 will push the first damper 13, thereby deforming the first damper 13. Then, the combined effect of the two dampers and the reverse force generated by the deformation of the second torsion spring 16 can achieve the purpose of buffering and protection, preventing the unqualified materials from falling directly to the ground and causing damage to the outer packaging.
[0035] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0037] 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A dynamic scale for small packages, characterized in that, The system includes a base frame (1), a workbench (2) fixedly mounted on the top of the base frame (1), and a side frame (3) mounted on the front end of the workbench (2). A discharge port (4) is opened on one side of the bottom of the side frame (3). A first shaft (5) is rotatably connected to the inner side of the top of the side frame (3), and a protective baffle (6) is fitted on the outer ring surface of the middle section of the first shaft (5). A first torsion spring (7) is fitted on the outer ring surface of one end of the first shaft (5). Buffer plates (8) are distributed at the bottom of the inner cavity of the side frame (3), and a connecting ear (9) is fixedly mounted on one side of the bottom of the buffer plate (8). The bottom of the connecting ear (9) is connected to a first rotating rod (10), and the other end of the first rotating rod (10) is rotatably connected to a second rotating rod (11) through a bearing seat. A connecting rod (12) is fixedly provided on the side wall of the second rotating rod (11), and a first damper (13) is rotatably connected to the middle of the bottom end of the connecting rod (12). A second damper (14) is rotatably connected to one end surface of the first rotating rod (10). A second shaft (15) is fixedly connected to one bottom end of the buffer plate (8), and a second torsion spring (16) is sleeved on the outer ring surface of one end of the second shaft (15).
2. The small package dynamic scale according to claim 1, characterized in that, A side plate (17) is fixedly provided on one side of the top of the workbench (2), and a cylinder (18) is fixedly provided at one end of the side plate (17). The output end of the cylinder (18) is connected to a push plate (19).
3. The small package dynamic scale according to claim 1, characterized in that, A drive motor (20) is fixedly installed on the inner wall of the base frame (1), and the output end of the drive motor (20) is connected to a first pulley (21). An internal toothed belt (22) is sleeved on the outer surface of the first pulley (21), and a second pulley (23) is connected to the inner side of the other end of the internal toothed belt (22).
4. A small package dynamic scale according to claim 3, characterized in that, One end of the second pulley (23) is fixedly connected to a drive roller (24), and the worktable (2) is rotatably connected to a driven roller (25) on the inner side away from the drive roller (24). The outer surface of the drive roller (24) is fitted with a conveyor belt (26).
5. A small package dynamic scale according to claim 1, characterized in that, The protective baffle (6) is rotatably connected to the side frame (3) via the first shaft (5), and the protective baffle (6) is L-shaped as a whole.
6. A small package dynamic scale according to claim 1, characterized in that, The buffer plate (8) and the side frame (3) are inclinedly distributed, and one end of the buffer plate (8) is rotatably connected to the side frame (3) through the second shaft (15).
7. A dynamic scale for small packages according to claim 4, characterized in that, One end of the transmission roller (24) is fixedly connected to the second pulley (23), and the other end of the transmission roller (24) is rotatably connected to the worktable (2) through a bearing seat.