A weighing mechanism for unloading and weighing materials after deboning and bone removal

Abstract

This utility model relates to a weighing mechanism for unloading materials after deboning and bone removal. It includes a main support frame, a conveying assembly, and a weighing component. The weighing component is coupled between the main support frame and the conveying assembly. The weighing component includes a weighing sensor and a precision guide assembly. The weighing sensor supports the conveying assembly on the main support frame. The precision guide assembly includes at least one precision guide shaft fixed below the conveying assembly and a linear bearing fixed above the main support frame and slidingly engaged with the precision guide shaft. This weighing mechanism for unloading materials after deboning and bone removal achieves physical isolation of vibration sources through a double-frame suspension structure. Furthermore, the combination of the precision guide shaft and the linear bearing replaces sliding friction with rolling friction, completely filtering out horizontal interference forces and ensuring the purity of the force applied to the weighing sensor, thereby fundamentally improving the accuracy and reliability of online weighing.

Description

Technical Field

[0001] This utility model relates to the field of weighing and conveying equipment technology, specifically to a weighing mechanism for unloading materials after deboning and removing bone. Background Technology

[0002] In food processing production lines, online weighing of deboned and cut meat pieces is a crucial step in achieving automated pricing, grading, and packaging. Existing online weighing and conveying mechanisms, especially in humid environments requiring frequent rinsing, generally suffer from the following problems:

[0003] 1. Weighing accuracy is easily affected by interference: The operation of the conveyor belt and the start and stop of the motor will generate vibration, and accidental collisions in the external environment will also generate horizontal impact forces. These non-vertical interference forces will be directly transmitted to the weighing sensor, resulting in huge deviations in the weighing reading and making it impossible to guarantee accuracy.

[0004] 2. Short sensor lifespan and susceptibility to damage: Weighing sensors are high-precision components, highly sensitive to lateral forces and torsional loads. In structures without effective protection, the sensors are subjected to complex combined forces over long periods, which can easily lead to fatigue damage of the internal strain gauges, shortening their lifespan and increasing maintenance costs.

[0005] 3. Simple guiding structure, limited improvement in accuracy: Although some existing designs adopt a suspension structure, the guiding mechanism used to restrict the movement of the suspension platform is mostly a simple combination of guide posts and guide holes. This structure has large movement gaps and frictional resistance, and cannot completely eliminate the interference of horizontal swaying on the sensor. Therefore, its effect on improving weighing accuracy is not ideal. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a weighing mechanism for unloading materials after deboning and removing bone. Through a double-frame suspension structure and a precision guiding assembly composed of a precision guide shaft and a linear bearing, the mechanical vibration and horizontal interference forces of the weighing system and the conveying system are completely isolated, thereby achieving high-precision and high-stability online weighing.

[0007] This deboning and weighing mechanism includes a main support frame and a conveying assembly mounted above the main support frame for conveying materials. It also includes a weighing component for detecting the weight of the materials. The weighing component is coupled between the main support frame and the conveying assembly to collect the total weight of the conveying assembly and the materials it carries while supporting the conveying assembly. The weighing component includes a weighing sensor and a precision guide assembly. The weighing sensor supports the conveying assembly on the main support frame. The precision guide assembly includes at least one precision guide shaft fixed below the conveying assembly and a linear bearing fixed above the main support frame and slidingly engaged with the precision guide shaft, to strictly limit the movement trajectory of the conveying assembly to the vertical direction.

[0008] Furthermore, the conveying assembly includes a conveying weighing frame, a drive shaft and a driven shaft rotatably mounted at both ends of the conveying weighing frame, and a grid chain for conveying materials wound around the drive shaft and the driven shaft; the conveying assembly also includes a drive motor that is drivenly connected to the drive shaft.

[0009] Furthermore, the conveying and weighing frame is provided with side panels on both sides, and a bracket is provided below the conveying and weighing frame. The drive shaft and the driven shaft are rotatably mounted on the side panels of the conveying and weighing frame through bearing seats. The bracket is supported on the main support frame by a weighing sensor, and the precision guide shaft is fixed below the bracket.

[0010] Furthermore, the weighing assembly also includes a sensor fixing component disposed on the main support frame, and the weighing sensor is mounted and fixed on the sensor fixing component.

[0011] Furthermore, the drive motor is fixed to the side plate of the conveying weighing frame by a protective cover, and the protective cover is equipped with a brushless motor and a reduction gear assembly.

[0012] Furthermore, a tensioning block is provided near the bearing housing of the driven shaft's mounted bearing.

[0013] This utility model discloses a weighing mechanism for unloading materials after deboning and bone removal. Through a double-frame suspension structure, it achieves physical isolation of the vibration source. By combining a precision guide shaft and a linear bearing, it replaces sliding friction with rolling friction, completely filtering out horizontal interference forces and ensuring the purity of the force on the weighing sensor, thereby fundamentally improving the accuracy and reliability of online weighing. Attached Figure Description

[0014] The following description, in conjunction with the accompanying drawings, further illustrates a weighing mechanism for unloading and deboning materials according to this utility model:

[0015] Figure 1This is a schematic diagram of the front view of the weighing and unloading mechanism after deboning and removing bone.

[0016] Figure 2 yes Figure 1 A schematic diagram of the right-side planar structure;

[0017] Figure 3 yes Figure 1 A top-view planar structural diagram;

[0018] Figure 4 This is a perspective view of the main support frame 1;

[0019] Figure 5 This is an internal structural diagram of the drive motor 25.

[0020] In the picture:

[0021] 1-Main support frame;

[0022] 2-Conveyor assembly; 21-Conveyor weighing frame, 22-Drive shaft, 23-Driven shaft, 24-Flat mesh chain, 25-Drive motor, 26-Bearing with seat; 211-Side panel, 212-Bracket, 231-Tensioning block, 251-Protective cover, 252-Brushless motor, 253-Reduction gear assembly;

[0023] 3-Weighing assembly; 31-Weighing sensor; 32-Precision guide assembly; 311-Sensor fixture; 321-Precision guide shaft; 322-Linear bearing. Detailed Implementation

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] In the description of this utility model, it should be understood that the terms "left", "right", "front", "rear", "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 limitations on this utility model.

[0026] The present invention will be further described below with specific embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0027] Implementation method 1: such as Figures 1 to 5 As shown, the deboning and weighing mechanism includes a main support frame 1 and a conveying assembly 2 mounted above the main support frame 1 for conveying materials. It also includes a weighing component 3 for detecting the weight of the materials. The weighing component 3 is coupled between the main support frame 1 and the conveying assembly 2, and is used to collect the total weight of the conveying assembly 2 and the materials it carries while supporting the assembly. The weighing component 3 includes a weighing sensor 31 and a precision guide component 32. The weighing sensor 31 supports the conveying assembly 2 on the main support frame 1. The precision guide component 32 includes at least one precision guide shaft 321 fixed below the conveying assembly 2, and a linear bearing 322 fixed above the main support frame 1 and slidingly engaged with the precision guide shaft 321, to strictly limit the movement trajectory of the conveying assembly 2 to the vertical direction. The "dual-frame-suspended" structure achieves physical isolation of the vibration source. Furthermore, the combination of a "precision guide shaft + linear bearing" replaces high-friction sliding contact with rolling friction, more thoroughly absorbing and isolating any potential horizontal impact forces. This ensures the load cell 31 receives pure force, fundamentally improving the accuracy and reliability of online weighing. In this weighing assembly 3, the load cell 31 "suspends" the entire conveying assembly 2 above the main support frame 1, while the precision guide assembly 32 constrains all movement of the conveying assembly 2. The combination of the "precision guide shaft + linear bearing" replaces high-friction sliding contact with low-friction rolling contact, allowing only pure vertical displacement. Moreover, compared to the traditional guide post / guide hole type mentioned in the background art, it has smaller movement gaps and higher guiding accuracy, more thoroughly absorbing and isolating horizontal impacts, ensuring the load cell 31 receives pure force. This combination of "suspended support" and "precision guidance" structurally isolates the vibration of the conveying system itself and filters out external horizontal interference forces, providing a fundamental guarantee for achieving high-precision weighing.

[0028] Implementation Method 2: The conveying assembly 2 of this deboning and weighing mechanism has a complete internal structure. The conveying assembly 2 includes a conveying and weighing frame 21, a drive shaft 22 and a driven shaft 23 rotatably mounted at both ends of the conveying and weighing frame 21, and a grid chain 24 wound around the drive shaft 22 and the driven shaft 23 for conveying materials. The conveying assembly also includes a drive motor 25 that is connected to the drive shaft 22. The internal structure of the conveying assembly 2, as a complete functional unit integrating frame, transmission, conveying, and drive, provides convenience for subsequent modular installation and maintenance. The conveying and weighing frame 21 has side panels 211 on both sides, and a bracket 212 is provided below the conveying and weighing frame 21. The drive shaft 22 and the driven shaft 23 are rotatably mounted on the side panels 211 of the conveying and weighing frame 21 through bearing seats 26. The bracket 212 is supported on the main support frame 1 by a weighing sensor 31, and the precision guide shaft 321 is fixed below the bracket 212. The bracket 212, which bears the weight of the entire conveyor assembly 2, is directly supported on the main support frame 1 via a load cell 31 at its bottom. The precision guide shaft 321 is also fixed below the bracket 212, ensuring the directness and precision of the force transmission path and motion guidance. The remaining structures and components are as described in Embodiment 1 and will not be repeated.

[0029] Embodiment 3: The weighing component 3 of this deboning and post-bone removal weighing mechanism further includes a sensor fixing member 311 mounted on the main support frame 1, and the weighing sensor 31 is mounted and fixed on the sensor fixing member 311. This provides a stable and reliable mounting base for the high-precision weighing sensor 31. The remaining structures and components are as described in Embodiment 2 and will not be described again.

[0030] Embodiment 4: In this deboning and weighing mechanism, the drive motor 25 is fixed to the side panel 211 of the conveying and weighing frame 21 via a protective cover 251. The protective cover 251 houses a brushless motor 252 and a reduction gear assembly 253. The drive motor 25 is completely fixed to the side panel 211 of the conveying and weighing frame 21 by the protective cover 251. The protective cover 251 integrates the brushless motor 252 and the reduction gear assembly 253, forming a compact, efficient, and well-protected drive unit. This not only saves installation space but also effectively prevents damage to the motor caused by moisture in the food processing washing environment. The remaining structures and components are as described in Embodiment 3 and will not be repeated.

[0031] Embodiment 5: In this deboning and weighing mechanism, a tensioning block 231 is provided near the bearing seat of the bearing 26 of the driven shaft 23. The tensioning block is used to adjust the position of the driven shaft 231 to change the tension of the grid chain 24. The side panel 211 is provided with a groove for mounting the bearing 26 of the driven shaft 23, allowing the bearing 26 to move horizontally within a small range in the groove, thereby adjusting the horizontal position of the driven shaft 23 and tightening it with the tensioning block 231 to change the tension of the grid chain 24. The remaining structures and components are as described in Embodiment 4 and will not be described again.

[0032] During operation: When material falls onto the grid chain 24, its weight is fully applied to the load cell 31 via the conveyor assembly 2, causing a small, purely vertical displacement in the conveyor assembly 2. During this process, the precision guide assembly 32 strictly constrains its movement trajectory, preventing any horizontal swaying. The load cell 31 collects and uploads a precise weight signal. Simultaneously, the drive motor 25 drives the grid chain 24 to smoothly convey the material forward, completing the entire process of online weighing and unloading.

[0033] This deboning and unloading weighing mechanism achieves physical isolation of vibration sources through a "dual-frame suspension" structure. Furthermore, the combination of "precision guide shaft + linear bearing" replaces sliding friction with rolling friction, completely filtering out horizontal interference forces and ensuring the purity of the force on the weighing sensor, thereby fundamentally improving the accuracy and reliability of online weighing.

[0034] The above description illustrates the main features, basic principles, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments or examples described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments or examples should be considered exemplary and not restrictive. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A weighing mechanism for unloading materials after deboning and bone removal, characterized in that: The system includes a main support frame (1) and a conveying assembly (2) mounted above the main support frame (1) for conveying materials. It is characterized by further including a weighing component (3) for detecting the weight of the materials. The weighing component (3) is coupled between the main support frame (1) and the conveying assembly (2) to collect the total weight of the conveying assembly (2) and the materials it carries while supporting the assembly. The weighing assembly (3) includes a weighing sensor (31) and a precision guide assembly (32). The weighing sensor (31) supports the conveying assembly (2) on the main support frame (1). The precision guide assembly (32) includes at least one precision guide shaft (321) fixed below the conveying assembly (2) and a linear bearing (322) fixed above the main support frame (1) and slidingly engaged with the precision guide shaft (321) to strictly limit the movement trajectory of the conveying assembly (2) in the vertical direction.

2. The weighing mechanism for unloading and weighing materials after deboning and bone removal according to claim 1, characterized in that: The conveying assembly (2) includes a conveying weighing frame (21), a drive shaft (22) and a driven shaft (23) rotatably mounted at both ends of the conveying weighing frame (21), and a grid chain (24) for conveying materials wound around the drive shaft (22) and the driven shaft (23); the conveying assembly also includes a drive motor (25) that is connected to the drive shaft (22) in a transmission.

3. The weighing mechanism for unloading and weighing materials after deboning and bone removal according to claim 2, characterized in that: The conveying weighing frame (21) has side panels (211) on both sides and a bracket (212) below it. The drive shaft (22) and driven shaft (23) are rotatably mounted on the side panels (211) of the conveying weighing frame (21) via bearings (26). The bracket (212) is supported on the main support frame (1) by a weighing sensor (31). The precision guide shaft (321) is fixed below the bracket (212).

4. The weighing mechanism for unloading and deboning after bone removal according to claim 3, characterized in that: The weighing assembly (3) also includes a sensor fixture (311) disposed on the main support frame (1), and the weighing sensor (31) is mounted and fixed on the sensor fixture (311).

5. The weighing mechanism for unloading and deboning after bone removal according to claim 4, characterized in that: The drive motor (25) is fixed to the side panel (211) of the conveying weighing frame (21) by a protective cover (251). The protective cover (251) is equipped with a brushless motor (252) and a reduction gear assembly (253).

6. The weighing mechanism for unloading and deboning after bone removal according to claim 5, characterized in that: A tensioning block (231) is provided near the bearing seat of the mounted bearing (26) of the driven shaft (23).

Images