A weighing device for a feed bin

Abstract

The utility model relates to a kind of weighing device of feeding box, the utility model is through the structure of "built-in weighing device+cover protection", solve the problem that traditional weighing assembly is exposed to dust, material pollution, leading to detection precision decline, service life shortening;Meanwhile through the "L type board sliding slot+slider" guide structure, limit the lateral deviation of aggregate bin in the process of bearing or discharging, avoid to intensify weighing error due to position swing, applicable to the industry of high requirement to material quantity precision control such as feed, food etc..Through the structure of "built-in weighing device+cover protection", solve the problem that traditional weighing assembly is exposed to dust, material pollution, leading to detection precision decline, service life shortening;Meanwhile through the "L type board sliding slot+slider" guide structure, limit the lateral deviation of aggregate bin in the process of bearing or discharging, avoid to intensify weighing error due to position swing, applicable to the industry of high requirement to material quantity precision control such as feed, food etc..

Description

Technical Field

[0001] This utility model relates to the field of feeding operations, and in particular to a weighing device for a feeding box that is pollution-proof and offset-proof. Background Technology

[0002] In feeding operations in industries such as feed and food, precise control of material usage directly affects product quality, and the weighing accuracy of the feed hopper is a core element in controlling material usage. Existing technologies have the following problems with the weighing structure of feed hoppers: Weighing components are mostly externally designed and directly exposed to the working environment, making them susceptible to material impact and equipment vibration, resulting in large weighing errors. At the same time, dust and scattered materials generated during operation can easily adhere to the surface of the weighing components and even enter the components, causing a decrease in detection accuracy, component wear, and a shortened service life. Without a stable guiding structure, the aggregate bin is prone to lateral displacement due to uneven force during the loading (when materials are put in) or unloading (when materials are discharged), which further aggravates the weighing error and makes it difficult to meet the strict requirements for material proportioning accuracy in production. Some feed boxes are equipped with only a single agitator, which makes it difficult to solve the problems of "material agglomeration and blockage at the feed inlet" and "material accumulation and blockage at the bottom of the bin" at the same time, affecting the smoothness of feeding and discharging, and indirectly affecting the continuity and accuracy of weighing. Therefore, this application designs a feeding box weighing device with anti-pollution and anti-deviation functions, and can ensure smooth feeding and discharging, in order to solve the above-mentioned technical problems. Utility Model Content

[0003] This application provides a pollution-proof and offset-proof feeding bin weighing device, which solves the problems of easy pollution of weighing components, easy offset of collection bins, and low weighing accuracy in the prior art. At the same time, it optimizes the stirring structure to ensure smooth feeding and discharging.

[0004] The technical solutions adopted in the embodiments of this application are as follows.

[0005] A pollution-proof and offset-proof feeding box weighing device includes a base, a collection bin, a first stirring component, a second stirring component, a support plate, and a weighing device. The support plate is horizontally positioned directly above the base, and an installation space is reserved between the support plate and the base; The collection bin is detachably fixed to the upper surface of the support plate. The top of the collection bin is provided with a feed inlet and the bottom is provided with a discharge outlet. The first stirring component includes a first motor and a first stirring shaft. The first motor is fixed to one side of the feed inlet at the top of the collection bin by a bracket. The first stirring shaft vertically passes through the feed inlet and extends into the upper half of the collection bin. The output end of the first motor is connected to the top of the first stirring shaft. The second stirring component includes a second motor and a second stirring shaft. The second motor is fixed to the lower surface of the support plate, and the second stirring shaft extends vertically upward through the support plate to the bottom outlet of the collection bin. The output end of the second motor is connected to the bottom end of the second stirring shaft. The weighing device is installed in the mounting space on the upper surface of the base. The force-bearing support end of the weighing device is in close contact with the lower surface of the support plate, and is used to detect the total weight of the support plate, the collection bin and the internal materials.

[0006] As a further improvement to the above technical solution: The weighing device includes a support, a connecting rod, a roller, a guide plate, and a driving component. The support is fixed to the upper surface of the base, and the driving component is a pressure sensor integrated driving cylinder, the cylinder body of which is fixed to the upper surface of the support. One end of the connecting rod is hinged to the top of the piston rod of the driving component, and the other end is rotatably connected to the roller through a bearing. The guide plate consists of two parallel strip steel plates, both of which are vertically fixed to the lower surface of the support plate, and the distance between the two guide plates is adapted to the diameter of the roller, forming a limiting and guiding channel for the roller. The driving component drives the connecting rod to support the support plate through the extension and retraction of the piston rod, while the pressure sensor detects the pressure transmitted by the support plate in real time to achieve weight detection.

[0007] Four sets of L-shaped plates are fixed to the upper surface of the base, and the four sets of L-shaped plates are located at the four corners of the base respectively; the vertical section of the L-shaped plate faces the support plate, and a sliding groove extending in the vertical direction is opened on the inner side of the vertical section; a slider is fixed at each of the four corners of the support plate, the slider slides and the sliding groove, and the contact surface between the slider and the sliding groove is provided with a wear-resistant coating; the slider slides vertically along the sliding groove, restricting the lateral displacement of the support plate.

[0008] The upper surface of the support plate is also fixed with a discharge device, which is an electric gate valve. Its inlet end is sealed to the outlet at the bottom of the collection bin, and the outlet end extends to the outside of the support plate to control the discharge speed and start / stop of the collection bin.

[0009] A cover is fixed between the lower surface of the support plate and the upper surface of the base. The cover is a closed shell made of stainless steel. The weighing device, the vertical section of the L-shaped plate, and the slider are all located inside the cover. An openable maintenance door is provided on one side of the cover. A sealing strip is provided at the connection between the maintenance door and the cover to prevent dust and materials from entering the cover and to facilitate the maintenance of the weighing device.

[0010] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: Thanks to its integrated weighing device and L-shaped plate guide design, weighing errors are reduced at the source. The entire weighing device is housed within a casing between the base and the support plate, avoiding direct exposure to material impact and vibration, unlike traditional external weighing structures. The drive component transmits force directly and stably to the support plate via connecting rods and rollers, enabling accurate detection of the support plate's load-bearing capacity and reducing detection deviations caused by external interference. Simultaneously, the L-shaped plate on the base features a guide groove along which the support plate's slider slides, limiting lateral displacement of the collection bin during loading or unloading, preventing inaccurate weighing due to bin positional movement. This ensures accurate material dosage detection, meeting the stringent requirements of the feed and food industries for precise material proportioning.

[0011] Because the weighing device is completely enclosed between the support plate and the base by the casing, it effectively isolates the dust and scattered materials generated during operation, prevents the weighing components (such as the drive components and connecting rods) from being contaminated and blocked, and ensures long-term stable detection accuracy. At the same time, the casing can block the external environment from corroding the weighing device (such as moisture and impurities), reducing component wear.

[0012] 3. Due to the use of a device equipped with a first agitator and a second agitator, a dual guarantee of "upper-layer agitation and dispersion + lower-layer agitation and anti-clogging" is formed: the first agitator is located above the collection silo, which can break up the input lumpy and agglomerated materials and prevent the materials from accumulating at the silo opening and affecting the feeding; the agitator end of the second agitator extends into the bottom of the collection silo, and together with the discharge device at the bottom, it can continuously agitate viscous or unevenly sized materials to prevent the materials from accumulating and clogging at the bottom of the silo and ensure smooth discharge. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the weighing device of the feeding box in this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the weighing device of the feeding box in this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the weighing device of the feeding box in this utility model.

[0016] Figure 4 for Figure 1 A magnified view of part A in the image.

[0017] Figure 5 for Figure 3 A magnified view of part B in the image.

[0018] In the diagram: 1. Base; 2. Collection bin; 3. First agitator; 4. Second agitator; 5. Support plate; 6. Weighing device; 7. L-shaped plate; 8. Discharge device; 9. Cover; 51. Sliding block; 61. Support; 62. Connecting rod; 63. Roller; 64. Guide plate; 65. Driving component; 71. Slide groove Detailed Implementation

[0019] This application provides a weighing device for a feeding bin, which solves the problems in the prior art where the weighing components are exposed and easily contaminated by dust and materials, some devices lack a stable guiding structure, and the collection bin is prone to shifting when bearing or discharging materials, further aggravating the problem of inaccurate weighing.

[0020] The technical solution adopted in the embodiments of this application is as follows: A pollution-proof and offset-proof feeding box weighing device includes a base 1, a collection bin 2, a first stirring component 3, a second stirring component 4, a support plate 5, a weighing device 6, an L-shaped plate 7, a discharge device 8, and a cover (9). 1. Structure and connection relationships of each component Base 1: This is the basic support component of the device. It is made of welded steel plate and has threaded holes on the upper surface for fixing the support 61 and L-shaped plate 7 to ensure that all components are installed securely. Support plate 5: It is a horizontally set rectangular steel plate located directly above the base 1. The lower surface is fixed with guide plate 64 and slider 51, and the upper surface is fixed with collection bin 2 and discharge device 8, which are used to support collection bin and internal materials. Collection bin 2: It has a conical cylindrical structure with a feed inlet at the top and a discharge outlet at the bottom. It is fixed to the upper surface of the support plate 5 by bolts and is used to temporarily store materials to be weighed. First stirring component 3: Composed of first motor 31 and first stirring shaft 32. First motor 31 is a stepper motor, which is fixed to the top of the feed inlet side of the collection bin 2 by a bracket. The first stirring shaft 32 is provided with spiral stirring blades, which vertically penetrate the feed inlet and extend to the upper part of the collection bin 2. First motor (31) is connected to first stirring shaft 32 by a coupling. After starting, it can break up the lumpy and agglomerated materials that are put in, so as to avoid clogging the feed inlet. The second stirring component 4 consists of a second motor 41 and a second stirring shaft 42. The second motor 41 is a geared motor and is fixed to the lower surface of the support plate 5. The second stirring shaft 42 is equipped with paddle-type stirring blades that extend vertically upward through the support plate 5 and to the bottom outlet of the collection bin 2. The second motor 41 is connected to the second stirring shaft 42 through gear transmission. After starting, it can stir the sticky or unevenly sized materials at the bottom of the bin to prevent accumulation and blockage. Weighing device 6 includes a support 61, a connecting rod 62, a roller 63, a guide plate 64, and a driving component 65. The support 61 is a block structure fixed to the upper surface of the base 1. The driving component 65 is a pressure sensor integrated driving cylinder (the pressure sensor accuracy is 0.1%FS). The cylinder body is fixed on the support 61. The top of the piston rod is hinged to the connecting rod 62. The other end of the connecting rod 62 is rotatably connected to the roller 63 through a deep groove ball bearing. The guide plate 64 consists of two parallel strip steel plates fixed to the lower surface of the support plate 5, forming a limiting channel for the roller 63 to ensure stable force transmission of the driving component 65. At the same time, the pressure sensor detects the weight in real time. L-shaped plate 7: Four sets of L-shaped plates 7 are located at the four corners of the base 1. Vertical sections are provided with vertical grooves 71. Slider 51 is made of wear-resistant cast iron and is fixed to the corners of the support plate 5. It slides and adapts to the grooves 71 to limit the lateral displacement of the support plate 5. Discharge device 8: It is an electric gate valve, which is sealed to the discharge port at the bottom of the collection bin 2. The switch is controlled by a PLC controller to achieve precise control of the discharge speed and start / stop. Cover 9: It is a stainless steel enclosed shell, fixed between the support plate 5 and the base 1, and encloses the weighing device 6, the vertical section of the L-shaped plate 7 and the slider 51. One side is provided with an inspection door 91 with a sealing strip to isolate dust and materials, and facilitate maintenance. 2. Working principle When the device is working, the material is fed into the top inlet of the collection bin 2. The first agitator 3 is activated to break up lumpy and agglomerated materials, ensuring that the material enters the collection bin 2 evenly. As the material increases, the weight borne by the support plate 5 is transmitted to the pressure sensor of the drive component 65 through the guide plate 64, roller 63, and connecting rod 62. The pressure sensor converts the pressure signal into a weight signal to achieve real-time weighing. During the weighing process, the slider 51 slides vertically along the groove 71 of the L-shaped plate 7, limiting the lateral displacement of the support plate 5 and ensuring weighing accuracy. When the material weight reaches the set value, the first agitator 3 stops feeding, the discharge device 8 is activated, and the second agitator 4 is activated at the same time to prevent the material from clogging at the bottom of the bin and ensure smooth discharge of the material. The cover 9 always isolates dust and materials, protecting the weighing device 6 from contamination.

[0021] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A pollution-proof and offset-proof feeding bin weighing device, comprising a base (1), a collection bin (2), a first stirring component (3), a second stirring component (4), a support plate (5), and a weighing device (6); characterized in that: The support plate (5) is horizontally positioned directly above the base (1), and an installation space is reserved between the support plate (5) and the base (1); The collection bin (2) is detachably fixed to the upper surface of the support plate (5). The top of the collection bin (2) is provided with a feed inlet and the bottom is provided with a discharge outlet. The first stirring component (3) includes a first motor (31) and a first stirring shaft (32). The first motor (31) is fixed to the top of the feed inlet of the collection bin (2) by a bracket. The first stirring shaft (32) vertically passes through the feed inlet and extends to the upper part of the collection bin (2). The output end of the first motor (31) is connected to the top of the first stirring shaft (32) for transmission. The second stirring component (4) includes a second motor (41) and a second stirring shaft (42). The second motor (41) is fixed to the lower surface of the support plate (5). The second stirring shaft (42) extends vertically upward through the support plate (5) and extends to the bottom outlet of the collection bin (2). The output end of the second motor (41) is connected to the bottom end of the second stirring shaft (42) for transmission. The weighing device (6) is installed in the mounting space on the upper surface of the base (1). The force-bearing support end of the weighing device (6) is in close contact with the lower surface of the support plate (5) and is used to detect the total weight of the support plate (5), the collection bin (2) and the internal materials.

2. The anti-pollution and anti-deviation feeding box weighing device as described in claim 1, characterized in that, The weighing device (6) includes a support (61), a connecting rod (62), a roller (63), a guide plate (64), and a driving component (65). The support (61) is fixed to the upper surface of the base (1), and the driving component (65) is a pressure sensor integrated driving cylinder, the cylinder body of which is fixed to the upper surface of the support (61). One end of the connecting rod (62) is hinged to the top of the piston rod of the driving component (65), and the other end is rotatably connected to the roller (63) through a bearing. The guide plate (64) consists of two parallel strip steel plates. Both guide plates (64) are vertically fixed to the lower surface of the support plate (5), and the distance between the two guide plates (64) is adapted to the diameter of the roller (63), forming a limiting guide channel for the roller (63). The driving component (65) drives the connecting rod (62) to support the support plate (5) through the extension and retraction of the piston rod. At the same time, the pressure sensor detects the pressure transmitted by the support plate (5) in real time to realize weight detection.

3. The anti-pollution and anti-deviation feeding box weighing device as described in claim 2, characterized in that: Four sets of L-shaped plates (7) are fixed on the upper surface of the base (1), and the four sets of L-shaped plates (7) are located at the four corners of the base (1); the vertical section of the L-shaped plate (7) faces the support plate (5), and a sliding groove (71) extending in the vertical direction is opened on the inner side of its vertical section; a slider (51) is fixed at each of the four corners of the support plate (5), the slider (51) slides and adapts to the sliding groove (71), and the contact surface between the slider (51) and the sliding groove (71) is provided with a wear-resistant coating; the slider (51) slides vertically along the sliding groove (71) to limit the lateral displacement of the support plate (5).

4. The anti-pollution and anti-deviation feeding box weighing device as described in claim 1, characterized in that: The upper surface of the support plate (5) is also fixed with a discharge device (8), which is an electric gate valve. Its inlet end is sealed to the outlet at the bottom of the collection bin (2), and the outlet end extends to the outside of the support plate (5) to control the discharge speed and start / stop of the collection bin (2).

5. The anti-pollution and anti-deviation feeding box weighing device as described in claim 1, characterized in that: A cover (9) is fixed between the lower surface of the support plate (5) and the upper surface of the base (1). The cover (9) is a closed shell made of stainless steel. The weighing device (6), the vertical section of the L-shaped plate (7) and the slider (51) are all located inside the cover (9). An openable maintenance door (91) is provided on one side of the cover (9). A sealing strip is provided at the connection between the maintenance door (91) and the cover (9) to prevent dust and materials from entering the interior of the cover (9) and to facilitate the maintenance of the weighing device (6).

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