A weighing device for fragile material

Abstract

The application relates to a weighing device for fragile materials and relates to the field of weighing equipment. The weighing device comprises a weighing part, a feeding part and a discharging part. The weighing part comprises a weighing frame. A discharge hopper is fixedly arranged on one side of the top surface of the weighing frame in a slanting mode. A buffer is arranged on the inner slanting surface of the discharge hopper and is used for buffering and carrying the falling fragile materials. The discharging part comprises a discharging support. The discharging support is arranged below the weighing frame. A discharging conveying belt is horizontally and tightly connected to the discharging support. An upper feeding support is horizontally fixed on one side of the top surface of the discharging support. An upper feeding conveying belt is horizontally and tightly connected to the upper feeding support. A weight sensor is vertically fixed on the bottom surface of the weighing frame. The bottom end of the weight sensor is fixed on the top end surface of the discharging support. The application reduces the falling impact degree of the materials, which is far below the breaking threshold of the fragile materials, completely solves the problem of high breakage in the initial link, and guarantees the integrity of the fragile materials in the weighing process.

Description

Technical Field

[0001] This application relates to the technical field of weighing equipment, and in particular to a weighing device for fragile materials. Background Technology

[0002] In the food processing industry, chocolate, as a high-value-added and fragile food, has extremely stringent requirements for material integrity in its production process. The appearance of chocolate directly affects consumers' purchasing intentions. Broken chocolate not only cannot be shipped as a qualified product, but also generates debris that pollutes the production environment, increasing cleaning costs and raw material losses. With the diversification of chocolate market demand and consumers' increasing requirements for product appearance, the industry's core demand for the "weighing process" in chocolate production has upgraded from "accurate measurement" to a dual standard of "accuracy + breakage prevention." The breakage prevention performance of weighing equipment has become a key factor determining the production efficiency of enterprises.

[0003] Weighing is a core process before chocolate packaging. Currently, in order to meet the efficiency requirements of large-scale production, the industry generally uses dynamic weighing equipment to replace traditional static platform scales. The chocolate is continuously transported to the weighing area by a conveyor belt, realizing the integrated operation of conveying, weighing and unloading, which improves efficiency compared to static weighing.

[0004] Regarding the aforementioned technologies, the inventors discovered that existing dynamic weighing equipment suffers from significant material impact during descent, leading to breakage in the initial stages. When chocolate is conveyed from the storage bin to the conveyor belt, the height difference and the lack of a buffer structure at the storage bin's outlet cause the chocolate to fall freely and impact the conveyor belt surface. The impact from this high-speed fall directly causes the chocolate's edges to crack or the entire piece to break, becoming the primary source of chocolate breakage. The lack of buffering between weighing and unloading further increases the risk of secondary breakage. After dynamic weighing, the chocolate must fall from the end of the conveyor belt to the packaging machine's inlet. This process also involves a height difference and lacks a transition buffer structure. After detaching from the moving conveyor belt, the chocolate is prone to secondary breakage due to inertia impacting the inner wall of the inlet or subsequent falling chocolate. Some equipment uses inclined guide plates at the end of the conveyor belt to increase unloading speed, but these guide plates are often made of metal or hard plastic. Friction between the chocolate and the guide plate during sliding causes wear on the surface coating, affecting product appearance. Furthermore, the heat generated by friction can cause localized melting of the chocolate, further reducing product quality. Utility Model Content

[0005] To address the issue of high impact during material fall in existing dynamic weighing equipment, which leads to breakage in the initial stage, this application provides a weighing device for fragile materials. Chocolate needs to fall from the end of the conveyor belt to the packaging machine's inlet. This process also involves a height difference and lacks a transition buffer structure. After the chocolate leaves the moving conveyor belt, it is prone to secondary breakage due to inertia impacting the inner wall of the inlet or subsequent falling chocolate. Some equipment uses inclined guide plates at the end of the conveyor belt to increase the feeding speed, but these guide plates are mostly made of metal or hard plastic. Friction between the chocolate and the guide plate during sliding can cause wear on the surface coating, affecting product appearance. Furthermore, the heat generated by friction can cause localized melting of the chocolate, further reducing product quality.

[0006] The weighing device for fragile materials provided in this application adopts the following technical solution: A weighing device for fragile materials includes a weighing component, a feeding component, and a discharging component. The weighing component includes a weighing frame, a hopper that is inclinedly fixed to one side of the top surface of the weighing frame, and a buffer component that is provided on the inclined surface inside the hopper to cushion and support the falling fragile materials. The discharging component includes a discharging bracket that is located below the weighing frame and a discharging conveyor belt that is horizontally tensioned and connected to the discharging bracket. A feeding frame is horizontally fixed above one side of the discharging bracket, and a feeding conveyor belt is horizontally tensioned and connected to the feeding frame. A weight sensor is vertically fixed to the bottom surface of the weighing frame, and the bottom end of the weight sensor is fixed to the top surface of the discharging bracket.

[0007] By adopting the above technical solution, the weighing frame and weight sensor in the weighing unit jointly achieve accurate weighing of fragile materials, while the hopper and buffer protect the integrity of the materials during the feeding process, preventing damage from direct impact. The feeding rack and feeding conveyor belt in the feeding unit are used to transport materials into the weighing frame, while the discharging bracket and discharging conveyor belt in the discharging unit are responsible for transporting the materials to the next process after weighing. Simultaneously, the weighing frame and the discharging bracket are connected by a weight sensor to ensure weighing accuracy and transmit data in real time. The material is first transported into the weighing frame by the feeding conveyor belt. The weight sensor monitors the weight of the material and transmits the data. When the preset weight is reached, the material enters the discharging conveyor belt through the inclined hopper. The buffer provides cushioning during the material's descent to prevent damage. Finally, the material is transported to the next process by the discharging conveyor belt.

[0008] Optionally, multiple support cylinders are fixed horizontally and vertically on the outer horizontal surface of the discharge conveyor belt, and a support frame is horizontally arranged above the outer horizontal surface of the discharge conveyor belt. The support frame is vertically slidably inserted into the multiple support cylinders, and an airbag support frame is horizontally fixed on the top surface of the support frame.

[0009] By employing the above technical solution, the discharge conveyor belt is responsible for transporting materials from one location to another. Multiple support cylinders are horizontally and vertically fixed on the outer horizontal plane of the discharge conveyor belt, providing stable vertical guidance for the up-and-down movement of the support frame. The support frame is located above the discharge conveyor belt and achieves free horizontal movement by being laterally slidably inserted into the support cylinders. The airbag support frame is located on the top surface of the support frame and is mainly used to support materials requiring additional support.

[0010] Optionally, a second damping rod is vertically fixed on the bottom surface of the support frame, and the other end of the second damping rod is fixed on the outer horizontal surface of the discharge conveyor belt.

[0011] By adopting the above technical solution, a second damping rod is installed on the bottom surface of the support frame. The other end of the damping rod is fixed on the discharge conveyor belt, so that the support frame can generate a certain friction force when moving up and down, thereby improving the stability and response speed of the system.

[0012] Optionally, a second spring is vertically sleeved on the outside of the second damping rod, and the two ends of the second spring are respectively fixed to the outer horizontal plane of the discharge conveyor belt and the bottom surface of the support frame.

[0013] By adopting the above technical solution, a second spring is also fitted outside the second damping rod. The two ends of the second spring are fixed to the outer surface of the discharge conveyor belt and the bottom of the support frame, respectively. The elastic force of the second spring provides a buffering effect for the support frame during the up and down movement, ensuring the smoothness of the movement and the stability of the material.

[0014] Optionally, the cushioning component includes an air cushion, one end of which is fixed to the inner wall of the hopper, and the other end of which is fixed with a plastic film.

[0015] By adopting the above technical solution, one end of the air cushion is fixed to the inner wall of the hopper to provide cushioning when the material falls, reducing the impact caused by the impact; the plastic film is fixed to the other end of the air cushion to intercept and weaken the impact of the material on the hopper, and by utilizing the smooth surface of the plastic film, the material slides into the weighing frame more quickly.

[0016] Optionally, a first damping rod is provided inside the air cushion, and the two ends of the first damping rod are respectively fixed to the upper and lower sides of the inner wall of the air cushion. A first spring is vertically sleeved on the outside of the first damping rod, and the two ends of the first spring are respectively fixed to the upper and lower sides of the inner wall of the air cushion.

[0017] By adopting the above technical solution, the first damping rod is set inside the air cushion and fixed by fixing both ends to the upper and lower sides of the inner wall. The first spring set on the outside increases the efficiency of absorbing impact force, so that the material is subjected to multi-stage shock absorption when falling, thereby effectively reducing the impact of the material falling on the hopper and surrounding equipment, and improving the stability and service life of the equipment.

[0018] Optionally, the bottom of the weighing frame is provided with a horizontal groove, and a pull-out slide plate is horizontally inserted into the groove of the weighing frame.

[0019] By adopting the above technical solution, the horizontally opened groove at the bottom of the weighing frame is used to install a pull-out slide plate that can slide horizontally, so that the pull-out slide plate can move when loading and unloading materials inside the weighing frame.

[0020] Optionally, a pull-out hydraulic cylinder is horizontally fixed on one side of the weighing frame, and the output end of the pull-out hydraulic cylinder is fixed to the end of the pull-out slide plate.

[0021] By adopting the above technical solution, a pull-out hydraulic cylinder is fixed on one side of the weighing frame. The thrust generated by the cylinder pushes the pull-out slide plate to slide in the chute, which facilitates the loading and unloading of materials.

[0022] In summary, this application includes at least one of the following beneficial technical effects: Through a dual buffering design of air cushion buffering at the end of the feeding process and airbag support for weighing and unloading, the initial impact is absorbed by the air cushion damping during the feeding and falling process. When fragile materials fall from the end of the feeding conveyor belt to the weighing frame, they first impact the air cushion of the buffer component. The air cushion is made of silicone material, which deforms upon impact, initially buffering the impact force of the conveyor. Simultaneously, the air cushion is connected to a first damping rod and a first spring. The impact force causes the first damping rod to extend and retract, and the first spring to compress and deform, further absorbing the remaining impact force. Compared to traditional equipment with no buffer and free fall, this technology can reduce the impact force of the falling material to far below the breakage threshold of fragile materials, completely solving the problem of high breakage in the initial stage and ensuring the integrity of fragile materials during weighing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the embodiment of this application in an exploded state; Figure 3 This is a schematic diagram of the material discharge component in an exploded state according to an embodiment of this application; Figure 4 This is a schematic diagram of the weighing component in the disassembled state according to an embodiment of this application; Figure 5 This is a schematic diagram of the buffer component in the disassembled state according to an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Weighing component; 11. Weighing frame; 12. Weight sensor; 13. Feed hopper; 14. Buffer component; 141. Air cushion; 142. Plastic film; 143. First damping rod; 144. First spring; 15. Pull-out sliding plate; 16. Pull-out hydraulic cylinder; 2. Feeding component; 21. Feeding rack; 22. Feeding conveyor belt; 3. Discharging component; 31. Discharging bracket; 32. Discharging conveyor belt; 33. Support cylinder; 34. Support rod frame; 35. Airbag support frame; 36. Second damping rod; 37. Second spring. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] This application discloses a weighing device for fragile materials. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 A weighing device for fragile materials includes a weighing component 1, a feeding component 2, and a discharging component 3. The weighing component 1 includes a weighing frame 11, a feeding hopper 13 is fixedly inclined on one side of the top surface of the weighing frame 11, and a buffer component 14 is provided on the inclined surface inside the feeding hopper 13. The buffer component 14 is used to buffer and support the falling fragile materials. The discharging component 3 includes a discharging bracket 31, which is located below the weighing frame 11. A discharging conveyor belt 32 is horizontally tensioned and connected to the discharging bracket 31. A feeding rack 21 is horizontally fixed above one side of the discharging bracket 31, and a feeding conveyor belt 22 is horizontally tensioned and connected to the feeding rack 21. A weight sensor 12 is vertically fixed on the bottom surface of the weighing frame 11, and the bottom end of the weight sensor 12 is fixed on the top surface of the discharging bracket 31.

[0027] By adopting the above technical solution, the weighing frame 11 and weight sensor 12 in the weighing component 1 jointly achieve accurate weighing of fragile materials, and the material integrity is protected during the feeding process by the discharge hopper 13 and the buffer 14 to prevent damage due to direct impact. The feeding rack 21 and feeding conveyor belt 22 of the feeding component 2 are used to transport materials into the weighing frame 11, while the discharge bracket 31 and discharge conveyor belt 32 in the discharge component 3 are responsible for transporting the materials to the next process after weighing. At the same time, the weighing frame 11 and the discharge bracket 31 are connected by the weight sensor 12 to ensure the accuracy of weighing and transmit data in real time. The material is first transported into the weighing frame 11 by the feeding conveyor belt 22. The weight sensor 12 monitors the weight of the material and transmits the data. When the preset weight is reached, the material enters the discharge conveyor belt 32 through the inclined discharge hopper 13. The buffer 14 provides cushioning during the material's fall to avoid damage. Finally, the material is transported to the next process by the discharge conveyor belt 32.

[0028] Reference Figure 3Multiple support cylinders 33 are fixed horizontally and vertically on the outer horizontal surface of the discharge conveyor belt 32, and a support frame 34 is horizontally arranged above the outer horizontal surface of the discharge conveyor belt 32. The support frame 34 is vertically slidably inserted into the multiple support cylinders 33, and an airbag support frame 35 is horizontally fixed on the top surface of the support frame 34.

[0029] The discharge conveyor belt 32 is responsible for transporting materials from one location to another. Multiple support cylinders 33 are horizontally and vertically fixed on the outer horizontal surface of the discharge conveyor belt 32, providing stable vertical guidance for the up-and-down movement of the support frame 34. The support frame 34 is located above the discharge conveyor belt 32 and achieves free horizontal movement by being horizontally slidably inserted into the support cylinders 33. The airbag support frame 35 is located on the top surface of the support frame 34 and is mainly used to support materials requiring additional support. A second damping rod 36 is vertically fixed on the bottom surface of the support frame 34, and the other end of the second damping rod 36 is fixed to the outer horizontal surface of the discharge conveyor belt 32. The second damping rod 36, mounted on the bottom surface of the support frame 34, with its other end fixed to the discharge conveyor belt, generates a certain amount of friction when the support frame 34 moves up and down, improving the system's stability and response speed. A second spring 37 is vertically sleeved on the outside of the second damping rod 36, and the two ends of the second spring 37 are respectively fixed to the outer horizontal surface of the discharge conveyor belt 32 and the bottom surface of the support frame 34. A second spring 37 is also sleeved on the outside of the second damping rod 36, and the two ends of the second spring 37 are respectively fixed to the outer surface of the discharge conveyor belt 32 and the bottom of the support frame 34. The elastic force of the second spring 37 provides a buffering effect during the up-and-down movement of the support frame 34, ensuring smooth movement and material stability.

[0030] Reference Figure 5 The buffer 14 includes an air cushion 141, one end of which is fixed to the inner wall of the hopper 13, and the other end of which is fixed with a plastic film 142. The air cushion 141 is fixed to the inner wall of the hopper 13 to provide cushioning when the material falls, reducing impact. The plastic film 142 is fixed to the other end of the air cushion 141 to intercept and weaken the impact of the material on the hopper 13. Utilizing the smooth surface of the plastic film 142, the material is accelerated to slide into the weighing frame 11.

[0031] An internal damping rod 143 is provided inside the air cushion 141, with its two ends fixed to the upper and lower sides of the inner wall of the air cushion 141, respectively. A first spring 144 is vertically sleeved on the outside of the first damping rod 143, with its two ends fixed to the upper and lower sides of the inner wall of the air cushion 141, respectively. The first damping rod 143 is located inside the air cushion 141 and is fixed by fixing its two ends to the upper and lower sides of the inner wall. The first spring 144 on its outside increases the efficiency of absorbing impact force, so that the material falls and receives a multi-stage shock absorption effect, thereby effectively reducing the impact of the falling material on the hopper 13 and surrounding equipment, and improving the stability and service life of the equipment.

[0032] Reference Figure 4 The weighing frame 11 has a horizontally opening groove at its bottom, and a pull-out slide plate 15 is horizontally slidably inserted into the groove. The horizontally opening groove at the bottom of the weighing frame 11 is used to install the horizontally sliding pull-out slide plate 15, allowing the slide plate 15 to move when loading and unloading materials inside the weighing frame 11. A pull-out hydraulic cylinder 16 is horizontally fixed to one side of the weighing frame 11, and the output end of the pull-out hydraulic cylinder 16 is fixed to the end of the pull-out slide plate 15. The pull-out hydraulic cylinder 16, fixed to one side of the weighing frame 11, pushes the pull-out slide plate 15 to slide within the groove using the thrust generated by the cylinder, facilitating the loading and unloading of materials.

[0033] The implementation principle of a weighing device for fragile materials according to an embodiment of this application is as follows: First, the fragile material is placed on the feeding conveyor belt 22 of the feeding rack 21 of the feeding component 2. The feeding conveyor belt 22 is started to drive the fragile material into the weighing frame 11 of the weighing component 1. The fragile material conveyed by the feeding conveyor belt 22 falls from the tail end into the discharge hopper 13. The fragile material falls and impacts the buffer 14. The fragile material impacts the air cushion 141 and deforms, compresses the first damping rod 143 and deforms, and presses the first spring 144 to filter and absorb the impact force of the fragile material, reducing the integrity of the fragile material falling into the weighing frame 11. Then, the fragile material is weighed in the weighing frame 11 by the weight sensor 12. After the appropriate weight requirement is reached, the pull-out hydraulic cylinder 16 on the outside of the weighing frame 11 is activated to pull the pull-out slide plate 15 out of the bottom slide groove of the weighing frame 11, and the fragile material in the weighing frame 11 falls into the discharge component 3. Finally, the falling fragile material falls into the airbag support frame 35 of the support frame 34. The impact force generated by the falling fragile material causes the support frame 34 to slide vertically on the support cylinder 33 of the discharge conveyor belt 32, which compresses the extension and retraction of the second damping rod 36 and the deformation of the second spring 37, filtering out the impact force of the falling fragile material and ensuring the integrity of the falling fragile material. Then, the discharge conveyor belt 32 conveys and discharges the material.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A weighing device for fragile materials, characterized in that, The weighing device includes a weighing component (1), a feeding component (2), and a discharging component (3). The weighing component (1) includes a weighing frame (11). A hopper (13) is fixedly inclined on one side of the top surface of the weighing frame (11). A buffer (14) is provided on the inclined surface inside the hopper (13). The buffer (14) is used to buffer and support the falling fragile materials. The discharging component (3) includes a discharging bracket (31). The discharging bracket (31) is located below the weighing frame (11). A discharging conveyor belt (32) is horizontally tensioned and connected on the discharging bracket (31). A feeding rack (21) is horizontally fixed above one side of the discharging bracket (31). A feeding conveyor belt (22) is horizontally tensioned and connected on the feeding rack (21). A weight sensor (12) is vertically fixed on the bottom surface of the weighing frame (11). The bottom end of the weight sensor (12) is fixed on the top surface of the discharging bracket (31).

2. The weighing device for fragile materials according to claim 1, characterized in that: Multiple support cylinders (33) are fixed horizontally and vertically on the outer horizontal surface of the discharge conveyor belt (32), and a support frame (34) is horizontally arranged above the outer horizontal surface of the discharge conveyor belt (32). The support frame (34) is vertically slidably inserted into the multiple support cylinders (33), and an airbag support frame (35) is horizontally fixed on the top surface of the support frame (34).

3. A weighing device for fragile materials according to claim 2, characterized in that: A second damping rod (36) is vertically fixed on the bottom surface of the support frame (34), and the other end of the second damping rod (36) is fixed on the outer horizontal surface of the discharge conveyor belt (32).

4. A weighing device for fragile materials according to claim 3, characterized in that: The second damping rod (36) is vertically sleeved with a second spring (37), and the two ends of the second spring (37) are respectively fixed to the outer horizontal surface of the discharge conveyor belt (32) and the bottom surface of the support frame (34).

5. A weighing device for fragile materials according to claim 1, characterized in that: The buffer (14) includes an air cushion (141), one end of which is fixed to the inner wall of the hopper (13), and the other end of which is fixed with a plastic film (142).

6. A weighing device for fragile materials according to claim 5, characterized in that: The air cushion (141) is provided with a first damping rod (143) inside, and the two ends of the first damping rod (143) are respectively fixed to the upper and lower sides of the inner wall of the air cushion (141). A first spring (144) is vertically sleeved on the outside of the first damping rod (143), and the two ends of the first spring (144) are respectively fixed to the upper and lower sides of the inner wall of the air cushion (141).

7. A weighing device for fragile materials according to claim 1, characterized in that: The bottom of the weighing frame (11) is provided with a horizontal groove, and a pull-out slide plate (15) is horizontally inserted into the groove of the weighing frame (11).

8. A weighing device for fragile materials according to claim 7, characterized in that: A pull-out hydraulic cylinder (16) is horizontally fixed on one side of the outer side of the weighing frame (11), and the output end of the pull-out hydraulic cylinder (16) is fixed at the end of the pull-out slide plate (15).

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