A device for assisting in the calibration of a batching scale

Abstract

This utility model belongs to the technical field of scale calibration equipment, and in particular to an auxiliary device for calibrating a batching scale. It includes a batching scale body, a hopper, and a calibration box. The hopper is located above the batching scale body, and a positioning block is fixed to the top of the hopper. A hanging hole is provided on the positioning block, and a positioning hook is hung in the hanging hole. The calibration box is fixed to the bottom of the supporting vertical rod, and a storage slot for placing standard weights is provided inside the calibration box. A corresponding docking hole is provided on the upper part of the supporting vertical rod, and a positioning bolt passes through the supporting vertical rod. By setting up an independent calibration box and adjustable supporting vertical rods and lifting rods, the placement position of the weights is changed from a high, deep position inside the hopper to a lower position within easy reach of the operator. The operator no longer needs to carry heavy weights to the edge of the hopper at a high position, nor does they need to lean out to put them into the hopper, fundamentally eliminating the risk of weights slipping and personnel falling or bumping into the weights while working at heights.

Description

Technical Field

[0001] This utility model belongs to the technical field of calibration equipment, specifically relating to an auxiliary device for calibrating a batching scale. Background Technology

[0002] In industrial production, batching scales are key equipment used for weighing and proportioning materials, and their measurement accuracy directly affects product quality and production costs. Therefore, regular calibration of batching scales is an essential maintenance step. Calibration typically involves placing a standard weight (or counterweight) of known weight into the hopper of the batching scale, and adjusting and correcting the scale's measurement parameters by comparing the instrument display value with the actual weight of the counterweight.

[0003] The hopper is usually quite high, requiring operators to carry heavy standard weights to a high place and place them deep inside the hopper. This is not only extremely labor-intensive and prone to causing muscle strain, but also poses serious safety risks such as weights slipping, personnel falling from heights, or bumping into the hopper edge. Furthermore, material residue may remain on the inner wall of the hopper, and the friction and collision between the weights and the hopper wall, as well as the uncertainty of the weights' placement within the hopper, all introduce additional interference forces, affecting the force balance and reducing the accuracy of calibration data. Therefore, we propose an auxiliary device for calibrating the batching scale. Utility Model Content

[0004] To address the issues raised in the background art, where hoppers are typically of considerable height, requiring operators to move heavy standard weights to a high position and place them deep within the hopper, resulting in extreme physical exertion and a high risk of muscle strain, as well as serious safety risks such as weight slippage, falls from height, or collisions with the hopper's edges, and the potential for material residue on the hopper's inner wall, friction and collisions between the weights and the hopper wall, and the uncertainty of the weights' placement within the hopper all introduce additional interference forces, affecting force balance and reducing the accuracy of calibration data, this invention provides an auxiliary device for calibrating a batching scale.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for calibrating a batching scale, comprising a batching scale body, a hopper, and a calibration box. The hopper is disposed above the batching scale body, and a positioning block is fixed to the top of the hopper. A hanging hole is provided on the positioning block, and a positioning hook is hung in the hanging hole. A lifting rod is fixedly connected to the bottom end of the positioning hook, and a support vertical rod is telescopically connected to the bottom of the lifting rod. The calibration box is fixed to the bottom end of the support vertical rod, and a storage slot for placing standard weights is provided inside the calibration box.

[0006] The lower part of the lifting rod has a plurality of positioning screw holes, and the upper part of the supporting vertical rod has a corresponding docking hole, and a positioning bolt passes through the supporting vertical rod.

[0007] Preferably, as an auxiliary device for calibrating a batching scale according to the present invention, the number of positioning blocks is four, and they are respectively fixed at the four corners of the top of the hopper.

[0008] As a preferred auxiliary device for calibrating a batching scale according to this utility model, the positioning bolts are sequentially inserted into the positioning screw holes and the mating holes.

[0009] As a preferred auxiliary device for calibrating the batching scale according to this utility model, the bottom of the storage slot is bonded with an anti-slip patch.

[0010] Preferably, as an auxiliary device for calibrating a batching scale according to this utility model, the number of supporting vertical rods is two, and a triangular rod is fixedly connected between the two supporting vertical rods.

[0011] As a preferred auxiliary device for calibrating a batching scale according to this utility model, the calibration box is fixed to the bottom end of the support vertical rod by welding or bolt connection.

[0012] As a preferred auxiliary device for calibrating the batching scale according to this utility model, the batching scale body is equipped with a numerical display for displaying the weighing value.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up an independent calibration box and adjustable support rods and lifting rods, the placement position of the weights is changed from a high, deep inside the hopper to a lower position that is within easy reach of the operator. The operator no longer needs to carry heavy weights to the edge of the hopper at a high position, nor does he need to lean out to put them into the depth of the hopper. This fundamentally eliminates the risk of weights slipping, falls or collisions caused by personnel climbing to high positions. The weights are placed stably in the storage slot of the calibration box, completely isolated from the inner wall of the hopper, which completely avoids the additional interference caused by friction and collision between the weights and the hopper wall. This prevents the problems of high operational safety hazards and easy impact on calibration accuracy in existing calibration methods. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the external front view of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the weighing box of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0019] Figure 5 This is a schematic diagram of the connection structure between the supporting vertical rod and the lifting rod of this utility model.

[0020] In the diagram: 1. Batching scale body; 2. Hopper; 3. Positioning block; 4. Hanging hole; 5. Calibration box; 6. Storage trough; 7. Anti-slip patch; 8. Supporting vertical rod; 9. Lifting rod; 10. Positioning hook; 11. Triangular rod; 12. Positioning bolt; 13. Positioning screw hole; 14. Connecting hole; 15. Numerical display. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] like Figures 1-5 As shown;

[0024] An auxiliary device for calibrating a batching scale includes a batching scale body 1, a hopper 2, and a calibration box 5. The hopper 2 is located above the batching scale body 1, and a positioning block 3 is fixed to the top of the hopper 2. The positioning block 3 has a hanging hole 4, and a positioning hook 10 is hung in the hanging hole 4. A lifting rod 9 is fixedly connected to the bottom of the positioning hook 10. A support rod 8 is telescopically connected to the bottom of the lifting rod 9. The calibration box 5 is fixed to the bottom of the support rod 8. A storage slot 6 for placing standard weights is opened inside the calibration box 5. A plurality of positioning screw holes 13 are opened at the lower part of the lifting rod 9, and a corresponding docking hole 14 is opened at the upper part of the support rod 8. A positioning bolt 12 passes through the support rod 8.

[0025] In this implementation plan, by setting up an independent calibration box 5 and adjustable support rods 8 and lifting rods 9, the placement of the weights is changed from the high and deep inside of the hopper 2 to a lower position that is within easy reach of the operator. The operator no longer needs to carry heavy weights to the edge of the hopper 2 at a high position, nor does he need to lean out to put them into the depth of the hopper 2. This fundamentally eliminates the risk of weights slipping, falls or collisions caused by personnel climbing to high positions. The weights are placed stably in the storage slot 6 of the calibration box 5, completely isolated from the inner wall of the hopper 2, and completely avoids the additional interference caused by friction and collision between the weights and the wall of the hopper 2.

[0026] In an optional embodiment, there are four positioning blocks 3, which are fixed at the four corners of the top of the hopper 2.

[0027] In this implementation scheme: four positioning blocks 3 are evenly distributed at the four corners of the top of the hopper 2, so that the four sets of calibration auxiliary devices can be symmetrically mounted, ensuring that the load from the weights is evenly distributed on the entire support structure of the hopper 2, and avoiding weighing sensor errors caused by uneven force.

[0028] In an optional embodiment, the positioning bolt 12 is sequentially inserted into the positioning bolt hole 13 and the mating hole 14.

[0029] In this implementation plan, the relative position between the lifting rod 9 and the supporting vertical rod 8 is flexibly adjusted and rigidly locked by the cooperation of the positioning screw hole 13, the docking hole 14 and the positioning bolt 12. This allows the device to quickly adapt to hoppers 2 of different heights, and the mechanical locking ensures the stability of the entire support structure during the calibration process, avoiding the impact on calibration accuracy due to loosening or slippage of the device.

[0030] In an optional embodiment, the bottom of the storage compartment 6 is adhered with an anti-slip patch 7.

[0031] In this implementation plan: Anti-slip patches 7 are set at the bottom of the storage slot 6, which significantly increases the friction between the weights and the bottom of the slot, and can effectively prevent the standard weights from sliding or shifting during placement or calibration.

[0032] In an optional embodiment, there are two supporting vertical rods 8, and a triangular rod 11 is fixedly connected between the two supporting vertical rods 8.

[0033] In this implementation plan: the two supporting vertical rods 8 and the triangular rod 11 together form a stable triangular support frame. The triangular rod 11 plays a key reinforcing role, which greatly enhances the overall rigidity and anti-torsional and anti-bending performance of the device, effectively preventing the supporting vertical rods 8 from shaking or deforming when bearing heavy objects, and providing a solid structural foundation for high-precision scale calibration.

[0034] In an optional embodiment, the calibration box 5 is fixed to the bottom end of the support rod 8 by welding or bolting.

[0035] In this implementation plan: welding ensures the permanence and high strength of the connection; bolted connection facilitates the transportation, installation and maintenance of the device, and ensures that the force transmission path of the weight from the weighing box 5 to the supporting vertical rod 8 is direct and reliable.

[0036] In an optional embodiment, the batching scale body 1 is equipped with a numerical display 15 for displaying the weighing value.

[0037] In this implementation scheme: the numerical display 15 is used to display the weight readings in real time and accurately during the calibration process. It serves as the direct basis for operators to compare data and calibrate parameters, thus forming a complete and usable calibration system.

[0038] Working principle:

[0039] Before the calibration operation begins, the operator adjusts the overall height of the device in advance according to the top height of the hopper 2 of the batching scale to be calibrated, loosens the positioning bolts 12, and adjusts the relative position of the lifting rod 9 within the supporting vertical rod 8 as needed, so that the positioning hooks 10 at the top of the device can be easily and accurately hooked into the hanging holes 4 at the four corners of the top of the hopper 2. When the height is appropriate, the positioning bolts 12 are passed through the corresponding positioning screw holes 13 on the lifting rod 9 and the supporting vertical rod 8, and screwed into the mating hole 14 to tighten, thus completing the rigid fixation and height locking of the device.

[0040] The four sets of auxiliary devices with adjusted heights are lifted to the side of the hopper 2. The positioning hooks 10 of each set of devices are hung in the hanging holes 4 of the four positioning blocks 3. At this time, the calibration box 5 of the device is naturally suspended at an appropriate height on the side of the hopper 2. The triangular rod 11 is connected between the two supporting vertical rods 8, which effectively enhances the overall structural stability of the device and prevents it from shaking during the calibration process.

[0041] The operator smoothly places the standard weight into the storage slot 6 of the calibration box 5. Since the height of the calibration box 5 and the storage slot 6 is much lower than the top of the hopper 2 and is located next to the operator, this process is extremely labor-saving and safe. The anti-slip patch 7 at the bottom of the storage slot 6 can effectively prevent the weight from sliding in the slot. The weight of the weight is finally transferred to the top of the hopper 2 through the calibration box 5, the support rod 8, the lifting rod 9, and the positioning hook 10. Since the force transmission path is rigid and the device is stable, the weight of the weight is applied evenly and without impact to the hopper 2 and acts precisely on the weighing sensor of the batching scale. The batching scale body 1 and the numerical display 15 are both existing technology products. This part is mature existing technology, and its principle will not be described in detail here.

[0042] The operator reads the weight data on the numerical display 15 and compares it with the weight of the standard weight. Then, according to the calibration procedure, different weights can be added, removed, or replaced in sequence to repeat the loading process and complete the precise calibration of the zero point, range, and other parameters of the batching scale. After the calibration is completed, the weights are removed from the storage slot 6, and the positioning hook 10 is removed from the hanging hole 4. The device can then be moved or stored for future use.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An auxiliary device for calibrating a batching scale, comprising a batching scale body (1), a hopper (2), and a calibration box (5), characterized in that: A hopper (2) is provided above the main body (1) of the batching scale. A positioning block (3) is fixed on the top of the hopper (2). A hanging hole (4) is provided on the positioning block (3). A positioning hook (10) is hung in the hanging hole (4). A lifting rod (9) is fixedly connected to the bottom end of the positioning hook (10). A support rod (8) is telescopically connected to the bottom of the lifting rod (9). A calibration box (5) is fixed to the bottom end of the support rod (8). A storage slot (6) for placing standard weights is provided in the calibration box (5). The lower part of the lifting rod (9) has a plurality of positioning screw holes (13), the upper part of the supporting vertical rod (8) has a corresponding docking hole (14), and a positioning bolt (12) passes through the supporting vertical rod (8).

2. The auxiliary device for calibrating the batching scale according to claim 1, characterized in that: The number of positioning blocks (3) is four, and they are fixed at the four corners of the top of the hopper (2).

3. The auxiliary device for calibrating the batching scale according to claim 1, characterized in that: The positioning bolts (12) are sequentially inserted into the positioning bolt holes (13) and the mating holes (14).

4. The auxiliary device for calibrating the batching scale according to claim 1, characterized in that: The bottom of the storage slot (6) is glued with an anti-slip patch (7).

5. The auxiliary device for calibrating the batching scale according to claim 1, characterized in that: The number of the supporting vertical rods (8) is two, and a triangular rod (11) is fixedly connected between the two supporting vertical rods (8).

6. The auxiliary device for calibrating the batching scale according to claim 1, characterized in that: The calibration box (5) is fixed to the bottom end of the support rod (8) by welding or bolting.

7. The auxiliary device for calibrating the batching scale according to claim 1, characterized in that: The batching scale body (1) is equipped with a numerical display (15) for displaying the weighing value.

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