A vibrating feeder and filling and discharging device

Abstract

The utility model provides a kind of vibration feeder and filling discharging device, including vibration feeder body, the side of the delivery channel of vibration feeder body close to export is equipped with flow limiting mechanism, flow limiting mechanism includes flow limiting plate and flow limiting plate driving part, flow limiting plate is installed in delivery channel, flow limiting plate is connected with flow limiting plate driving part, the center line of the export of delivery channel is perpendicular to the axis of delivery channel, let department is equipped on flow limiting plate, the moving direction of flow limiting plate is parallel with the axis of delivery channel, flow limiting plate can be moved to the side away from inlet on the inlet side of delivery channel. By being equipped with flow limiting mechanism on the side of delivery channel close to export, when powder is formed into briquetting in feeder due to pressure, the agglomeration effect of fine powder, briquetting is moved to export by vibration feeder vibration, can hit the flow limiting plate of flow limiting mechanism, after colliding, the briquetting of agglomeration breaks and splits, play the role of auxiliary breaking, solve the problem that powder agglomeration leads to weight fluctuation.

Description

Technical Field

[0001] This utility model relates to the field of powder filling technology, and in particular to a vibrating feeder and filling and unloading device. Background Technology

[0002] Powder filling technology is widely used in various industries such as metallurgy, mining, and food. Among these, the filling weight accuracy of powders is a very important production technical indicator. For example, in the filling of precious metal powders such as tungsten carbide powder, the flowability of these powders is extremely poor, making it difficult to control the filling weight. Therefore, the feeding of such powders is usually done by vibration conveying (vibration conveying refers to the reciprocating motion of a vibrating feeder under the action of a vibrating motor, electromagnetic, or pneumatic power to achieve the throwing and movement of the powder). This method does not compress the powder and has good safety, but the accuracy is poor for powders with poor flowability and easy agglomeration (the powder is easily agglomerated in the vibrating feeder due to the adhesion and cohesion between powder particles, so arching often occurs during the feeding process, clogging the hopper, causing the powder to not be fed continuously and evenly, resulting in "bridging and material breakage". Such agglomerated powder is not easy to break up again during the conveying process without other external forces, and the falling powder will cause a large instantaneous fluctuation in weight, thus affecting the weighing accuracy of the filling). Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a vibrating feeder and a filling and unloading device.

[0004] This utility model is implemented by the following method: a vibrating feeder, including a vibrating feeder body, wherein a flow limiting mechanism is provided on the side of the conveying channel of the vibrating feeder body near the outlet, the flow limiting mechanism includes a flow limiting plate and a flow limiting plate drive component, the flow limiting plate is installed in the conveying channel, the flow limiting plate is connected to the flow limiting plate drive component, the center line of the outlet of the conveying channel is perpendicular to the axis of the conveying channel, the flow limiting plate is provided with a clearance portion, the moving direction of the flow limiting plate is parallel to the axis of the conveying channel, and the flow limiting plate can move from the inlet side of the conveying channel to the side away from the inlet.

[0005] Preferably, two flow limiting plates are provided at intervals and arranged side by side. The clearance portion of one flow limiting plate is a plurality of clearance grooves provided at intervals on the flow limiting plate, and the clearance portion of the other flow limiting plate is a notch opened on the flow limiting plate.

[0006] Preferably, the flow-limiting plate with the notch is located on the side near the entrance of the conveying channel, and the flow-limiting plate with the clearance groove is located on the side away from the entrance of the conveying channel; or, the flow-limiting plate with the notch is located on the side away from the entrance of the conveying channel, and the flow-limiting plate with the clearance groove is located on the side near the entrance of the conveying channel.

[0007] Preferably, the notch is formed on the side of the corresponding flow restrictor facing the outlet of the conveying channel, and the clearance groove is formed on the side of the corresponding flow restrictor facing the outlet of the conveying channel away from it; the size of the flow restrictor is matched with the size of the conveying channel.

[0008] Preferably, the two ends of the conveying channel are provided with seals, the flow limiting plate drive unit passes through the seals on the corresponding sides and connects to the flow limiting plate, and both flow limiting plates are connected to the same flow limiting plate drive unit.

[0009] A filling and feeding device includes a frame, a hopper, and a weighing mechanism. The hopper is mounted on the frame, and a vibrating feeder as described in any of the preceding claims is provided, connected between the outlet of the hopper and the weighing mechanism.

[0010] Preferably, there are two vibrating feeders, namely a first vibrating feeder and a second vibrating feeder. The inlet of the first vibrating feeder is connected to the outlet of the hopper, and the outlet of the first vibrating feeder is connected to the inlet of the second vibrating feeder. The outlet of the second vibrating feeder is opposite to the weighing mechanism. The second vibrating feeder is mounted on the weighing module, and the weighing module is fixed on the frame.

[0011] Preferably, a vibrating screen is provided between the first vibrating feeder and the second vibrating feeder, the inlet of the vibrating screen is connected to the outlet of the first vibrating feeder, and the outlet of the vibrating screen is connected to the inlet of the second vibrating feeder.

[0012] Preferably, the frame is clamped above the conveyor line of the material hopper, and the outlet of the second vibrating feeder is located directly above the conveyor line.

[0013] Preferably, the frame is provided with a connecting mechanism located at the outlet of the hopper.

[0014] The beneficial effects of this utility model are as follows: A vibrating feeder has the following advantages: By providing a flow-limiting mechanism on the side of the conveying channel near the outlet, when powder forms clumps within the feeder due to pressure and the adhesion of fine powder, the clumps move towards the outlet under the vibration of the vibrating feeder. They collide with the flow-limiting plate of the flow-limiting mechanism, breaking up the clumps after the collision. This assists in breaking up the clumps, and the broken clumps enter the outlet through the clearance portion of the flow-limiting plate, solving the problem of weight fluctuations caused by powder agglomeration. This allows the material to be conveyed in a finer powder flow, avoiding the sudden drop of large clumps, thereby improving the accuracy of material feeding and weighing, and effectively enhancing the weighing accuracy of subsequent processes such as filling.

[0015] The beneficial effects of a filling and feeding device are as follows: 1. By providing a flow-limiting mechanism on the side of the conveying channel near the outlet, when powder forms clumps in the feeder due to pressure and the adhesion of fine powder, the clumps move towards the outlet under the vibration of the vibrating feeder and collide with the flow-limiting plate of the flow-limiting mechanism. After the collision, the clumps break up, thus playing an auxiliary role in breaking up clumps and solving the problem of weight fluctuation caused by powder agglomeration. This allows the material to be conveyed in a finer powder flow, avoiding the sudden drop of large clumps, thereby improving the accuracy of feeding and weighing, and effectively enhancing the weighing accuracy of subsequent filling and other processes. 2. Two vibrating feeders are set up. The second vibrating feeder is placed on the weighing module. The dynamic weighing data of the weighing module is fed back to the first vibrating feeder, which can control the feeding speed of the first vibrating feeder. When there is more powder in the second vibrating feeder, the weighing module detects the weight change and the feedback signal causes the first vibrating feeder to reduce its feeding speed. When there is less powder in the second vibrating feeder, the first vibrating feeder increases its feeding speed, thereby ensuring that the weight of the material is controllable throughout the entire vibration process and avoiding the situation where the second vibrating feeder cannot vibrate due to excessive powder. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a vibrating feeder according to the present invention.

[0017] Figure 2 This is a cross-sectional structural diagram of a vibrating feeder according to the present invention.

[0018] Figure 3 This is a schematic diagram of the current limiting mechanism of this utility model.

[0019] Figure 4 This is a structural schematic diagram of a filling and feeding device according to the present invention.

[0020] Figure 5 This is a side view of a filling and feeding device according to the present invention.

[0021] Figure 6This is a schematic diagram showing the installation of a vibratory feeder of this utility model on a weighing module.

[0022] Figure 7 This is a structural schematic diagram of the weighing mechanism of this utility model.

[0023] Explanation of reference numerals in the attached diagram: 1. First vibrating feeder; 2. Flow limiting mechanism; 21. Flow limiting plate; 211. Notch; 212. Clearance groove; 22. Flow limiting plate drive component; 3. Frame; 4. Hopper; 5. Weighing mechanism; 6. Second vibrating feeder; 61. Conveying channel; 62. Seal; 7. Vibrating screen; 8. Conveying line; 9. Connecting mechanism; 10. Material bucket; 11. Weighing module. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Please see Figures 1 to 3 A vibrating feeder includes a vibrating feeder body. A flow limiting mechanism 2 is provided on the side of the conveying channel 61 of the vibrating feeder body near the outlet. The flow limiting mechanism 2 includes a flow limiting plate 21 and a flow limiting plate drive 22. The flow limiting plate 21 is installed in the conveying channel 61 and is connected to the flow limiting plate drive 22. The center line of the outlet of the conveying channel 61 is perpendicular to the axis of the conveying channel 61. The flow limiting plate 21 is provided with a clearance portion. The moving direction of the flow limiting plate 21 is parallel to the axis of the conveying channel 61. The flow limiting plate 21 can move from the inlet side of the conveying channel 61 to the side away from the inlet. By providing a flow-limiting mechanism 2 on the side of the conveying channel 61 near the outlet, when powder forms clumps in the feeder due to pressure and the adhesion of fine powder, the clumps move towards the outlet under the vibration of the vibrating feeder and collide with the flow-limiting plate 21 of the flow-limiting mechanism 2. After the collision, the clumps break up, which plays an auxiliary role in breaking up the clumps and solves the problem of weight fluctuation caused by powder agglomeration. The broken clumps enter the outlet through the clearance section. This allows the material to be conveyed in a finer powder flow state, avoiding the sudden drop of large clumps, thereby improving the accuracy of material feeding and weighing, and effectively improving the weighing accuracy of subsequent filling and other processes. The flow-limiting plate drive component 22 in the flow-limiting mechanism 2 can be an electric push rod or a telescopic cylinder, etc., and is not limited to this. The extended end of the flow-limiting plate drive component 22 is connected to a drive rod, which extends into the conveying channel and connects to the flow-limiting plate. The connection between the flow-limiting plate and the drive rod is provided with reinforcing ribs.

[0026] Please see Figures 1 to 3Preferably, two flow-limiting plates 21 are provided at intervals and arranged side by side. The clearance portion of one flow-limiting plate 21 consists of multiple clearance grooves 212 spaced apart on the flow-limiting plate 21, while the clearance portion of the other flow-limiting plate 21 consists of a notch 211 opened on the flow-limiting plate 21. By first flattening the powder with the first flow-limiting plate 21 and then dividing it into several strands with the second flow-limiting plate 21, the powder that has formed clumps can be separated into finer strands, which helps to further improve the accuracy of weighing, reduce the ineffective filling weight during the filling process, lower costs, and increase profits. Of course, only one flow-limiting plate 21 can also be used.

[0027] Please see Figures 1 to 3 Preferably, the flow-limiting plate 21 with the notch 211 is located on the side near the inlet of the conveying channel 61, and the flow-limiting plate 21 with the clearance groove 212 is located on the side away from the inlet of the conveying channel; or, the flow-limiting plate 21 with the notch 211 is located on the side away from the inlet of the conveying channel 61, and the flow-limiting plate 21 with the clearance groove 212 is located on the side near the inlet of the conveying channel 61. More preferably, the former solution is adopted in this embodiment. First, the large clumps are flattened and broken down, and then the clearance groove 212 further breaks them down into strands, achieving fine feeding and resulting in powder output in layers and strands.

[0028] Please see Figures 1 to 3 Preferably, the notch 211 is formed on the outlet side of the corresponding flow restrictor 21 facing the conveying channel 61, and the clearance groove 212 is formed from the side of the corresponding flow restrictor 21 facing the outlet of the conveying channel away from the outlet; the size of the flow restrictor 21 matches the size of the conveying channel 61. Multiple clearance grooves 212 form a comb-like shape, breaking the powder into strands and preventing agglomerates from being fed. Of course, other shapes are also possible, as long as they can assist in breaking up agglomerates.

[0029] Please see Figures 1 to 3 Preferably, the conveying channel 61 is provided with sealing elements 62 at both ends. The flow-limiting plate drive element 22 passes through the sealing element 62 on the corresponding side and connects to the flow-limiting plate 21. Both flow-limiting plates 21 are connected to the same flow-limiting plate drive element 22. By driving the flow-limiting plate 21 relative to the outlet, the flow cross-section of the flow-limiting plate 21 can be controlled. The flow-limiting plate drive element 22 in the flow-limiting mechanism 2 can be an electric push rod or a telescopic cylinder, etc., and its extended end extends into the conveying channel to connect the two flow-limiting plates in sequence.

[0030] Please see Figures 1 to 7A filling and feeding device includes a frame 3, a hopper 4, and a weighing mechanism 5. The hopper 4 is mounted on the frame 3 and also includes a vibrating feeder as described in any of the preceding claims, connected between the outlet of the hopper 4 and the weighing mechanism 5. By providing a flow-limiting mechanism 2 on the side of the conveying channel 61 near the outlet, when powder forms clumps in the feeder due to pressure and the adhesion of fine powder, the clumps are vibrated towards the outlet by the vibrating feeder and collide with the flow-limiting plate 21 of the flow-limiting mechanism 2. After the collision, the clumps break up, thus assisting in breaking up the clumps and solving the problem of weight fluctuations caused by powder agglomeration. This allows the material to be conveyed in a finer powder flow, avoiding the sudden drop of large clumps, thereby improving the accuracy of feeding and weighing, and effectively enhancing the weighing accuracy of subsequent filling processes. The structure of the frame 3, hopper 4, and weighing mechanism 5 can be found in patent document CN220483625U, and will not be described in detail here. The weighing mechanism 5 is used to weigh the material bucket 10.

[0031] Please see Figures 1 to 7 Preferably, there are two vibrating feeders: a first vibrating feeder 1 and a second vibrating feeder 6. The inlet of the first vibrating feeder 1 is connected to the outlet of the hopper 4, and the outlet of the first vibrating feeder 1 is connected to the inlet of the second vibrating feeder 6. The outlet of the second vibrating feeder 6 is opposite to the weighing mechanism 5. The second vibrating feeder 6 is mounted on the weighing module 11, which is fixed to the frame 3. With two vibrating feeders, the second vibrating feeder 6 is placed on the weighing module 11. The dynamic weighing data from the weighing module 11 is fed back to the first vibrating feeder 1, which can control the feeding speed of the first vibrating feeder 1. For example, the weighing module is connected to a PLC controller, and the PLC controller is electrically connected to the vibrating motor of the first vibrating feeder, used to adjust the vibration frequency of the motor according to the weighing signal. When there is a large amount of powder in the second vibrating feeder 6, the weighing module 11 detects the weight change and sends a feedback signal to the first vibrating feeder 1 to reduce its feeding speed. When there is a small amount of powder in the second vibrating feeder 6, the first vibrating feeder 1 increases its feeding speed, thus ensuring that the weight of the material is controllable throughout the entire vibration process and preventing the second vibrating feeder 6 from becoming unable to vibrate due to excessive powder. The structure of the weighing module 11 used for dynamic weighing can be found in patent document CN110451287A, and will not be described in detail here.

[0032] Please see Figures 1 to 7 Preferably, a vibrating screen 7 is provided between the first vibrating feeder 1 and the second vibrating feeder 6. The inlet of the vibrating screen 7 is connected to the outlet of the first vibrating feeder 1, and the outlet of the vibrating screen 7 is connected to the inlet of the second vibrating feeder 6.

[0033] Please see Figures 1 to 7 Preferably, the frame 3 is clamped above the conveyor line 8 of the material hopper 10, and the outlet of the second vibrating feeder 6 is located directly above the conveyor line 8. The structure of the conveyor line 8 can be found in patent document CN220483625U, and will not be described in detail here.

[0034] Please see Figures 1 to 7 Preferably, the frame 3 is provided with a connecting mechanism 9, which is located at the outlet of the hopper 4. The connecting mechanism 9 functions to vibrate and discharge the powder in the hopper 4. The structure of the connecting mechanism 9 can be found in patent document CN220483625U, and will not be described in detail here.

[0035] The working principle of this utility model is as follows: In the filling and feeding device, the hopper 4 stores the powder to be filled. When the entire device is started, the powder in the hopper 4 flows out from the outlet of the hopper 4 under the action of gravity and the connecting mechanism 9 and enters the first vibrating feeder 1 connected thereto.

[0036] The first vibrating feeder 1 conveys the powder downstream under its own vibration. At this time, the second vibrating feeder 6 is installed on the weighing module 11.

[0037] The powder output from the first vibrating feeder 1 enters the vibrating screen 7, which is located between the first and second vibrating feeders 6. Driven by a motor, the vibrating screen 7 vibrates to screen the incoming powder. The powder screened by the vibrating screen 7 then enters the second vibrating feeder 6. (The weighing module 11 measures the weight of the second vibrating feeder 6 and the powder inside it in real time, and feeds back the dynamic weighing data to the first vibrating feeder 1. When the weighing module 11 detects an increase in the weight of the powder in the second vibrating feeder 6, indicating that the feeding speed of the first vibrating feeder 1 is too fast, the first vibrating feeder 1 reduces its feeding speed based on the feedback signal; when it detects a decrease in weight, indicating that the feeding speed is too slow, the first vibrating feeder 1 increases its feeding speed, thus ensuring that the weight of the material remains controllable throughout the entire vibration process.) The second vibrating feeder 6, also under vibration, transports the powder to its outlet. Since the outlet of the second vibrating feeder 6 is located directly above the material conveying line 8 clamped in the frame 3, the powder falls from the outlet of the second vibrating feeder 6 and directly enters the material bucket 10 on the conveying line 8. The material bucket 10 is weighed by the weighing mechanism 5 set on the conveying line 8. When the weighing mechanism 5 detects that the weight of the weighing material bucket 10 is about to reach 50kg, the main control module (the main control module is connected to the first vibrating feeder, the second vibrating feeder, the weighing mechanism, the weighing module, the vibrating screen, the connecting mechanism, etc., which are existing technologies and will not be described in detail or have specific protection requirements) controls the first vibrating feeder 1 and the second vibrating feeder 6 to reduce the vibration frequency and complete the filling process. Furthermore, due to the flow-limiting mechanism 2 installed in the first vibrating feeder 1 and the second vibrating feeder 6, when powder forms clumps within the vibrating feeder due to pressure and the adhesion of fine powder, these clumps move towards the outlet under the vibration of the feeder and collide with the flow-limiting plate 21 of the flow-limiting mechanism 2. After the collision, the clumps break up, thus assisting in breaking up the clumps and solving the problem of weight fluctuations caused by powder agglomeration. This allows the material to be conveyed in a finer powder flow, avoiding the sudden drop of large clumps, thereby improving the accuracy of material feeding and weighing, and effectively enhancing the weighing accuracy of subsequent processes such as filling.

[0038] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0039] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0040] Finally, the above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0041] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the scope of protection of this utility model.

Claims

1. A vibratory feeder comprising a vibratory feeder body, characterised in that: The vibrating feeder body has a flow limiting mechanism on the side of the conveying channel near the outlet. The flow limiting mechanism includes a flow limiting plate and a flow limiting plate drive. The flow limiting plate is installed in the conveying channel and connected to the flow limiting plate drive. The center line of the outlet of the conveying channel is perpendicular to the axis of the conveying channel. The flow limiting plate has a clearance portion. The moving direction of the flow limiting plate is parallel to the axis of the conveying channel. The flow limiting plate can move from the inlet side of the conveying channel to the side away from the inlet.

2. The vibrating feeder according to claim 1, characterized in that: The flow limiting plate is provided in two pieces at intervals and arranged side by side. The clearance part of one flow limiting plate is a plurality of clearance grooves arranged at intervals on the flow limiting plate, and the clearance part of the other flow limiting plate is a notch opened on the flow limiting plate.

3. A vibratory feeder according to claim 2, wherein: The flow-limiting plate with the notch is located on the side near the entrance of the conveying channel, and the flow-limiting plate with the clearance groove is located on the side away from the entrance of the conveying channel; or, the flow-limiting plate with the notch is located on the side away from the entrance of the conveying channel, and the flow-limiting plate with the clearance groove is located on the side near the entrance of the conveying channel.

4. A vibratory feeder according to claim 2, wherein: The notch is formed on the side of the corresponding flow restrictor facing the outlet of the conveying channel, and the clearance groove is formed on the side of the corresponding flow restrictor facing the outlet of the conveying channel away from it; the size of the flow restrictor is matched with the size of the conveying channel.

5. A vibratory feeder as claimed in claim 1, wherein: The two ends of the conveying channel are provided with seals, and the flow limiting plate drive unit passes through the seals on the corresponding sides to connect to the flow limiting plate. Both flow limiting plates are connected to the same flow limiting plate drive unit.

6. A dosing and dispensing apparatus comprising a frame, a hopper mounted to the frame, and a weighing mechanism, characterised in that: The device also includes a vibrating feeder as described in any one of claims 1-5, connected between the outlet of the silo and the weighing mechanism.

7. A filling and feeding device according to claim 6, characterized in that: The vibrating feeder is provided in two parts, namely a first vibrating feeder and a second vibrating feeder. The inlet of the first vibrating feeder is connected to the outlet of the hopper, and the outlet of the first vibrating feeder is connected to the inlet of the second vibrating feeder. The outlet of the second vibrating feeder is opposite to the weighing mechanism. The second vibrating feeder is mounted on the weighing module, and the weighing module is fixed on the frame.

8. A filling and feeding device according to claim 7, characterized in that: A vibrating screen is provided between the first vibrating feeder and the second vibrating feeder. The inlet of the vibrating screen is connected to the outlet of the first vibrating feeder, and the outlet of the vibrating screen is connected to the inlet of the second vibrating feeder.

9. The filling and dispensing device according to claim 7, characterized in that The frame is clamped above the conveyor line of the material hopper, and the outlet of the second vibrating feeder is located directly above the conveyor line.

10. The filling and dispensing device according to claim 6, characterized in that The frame is equipped with a connecting mechanism located at the outlet of the hopper.

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