Feeding mechanism for processing materials

Abstract

The utility model discloses a feeding mechanism for processing materials, which takes one end pointed by the gravity direction of the feeding mechanism as the bottom end, and comprises a feeding cylinder, the top of the feeding cylinder is provided with a cylinder top, the bottom of the feeding cylinder is provided with a bottom opening, and a conveying pipe communicated with the feeding cylinder is arranged between the cylinder top and the bottom opening and used for inputting materials; the dust removal device is arranged on the feeding cylinder; negative-pressure suction force is generated through the dust removal device, so that impurities carried by the materials are adsorbed and separated in the direction of the barrel top, and the materials are output to the bottom opening according to the gravity. After entering the feeding cylinder, the material can be subjected to a dust removal process and then output to equipment of a subsequent process, impurities of the material can be prevented from being mixed into a passivation process at the initial stage of feeding, the quality of an insulating coating layer formed by passivation in the subsequent process can be effectively improved, special dust removal equipment does not need to be specially arranged, and the production cost is reduced. And the process flow of passivation can be simplified.

Description

Technical Field

[0001] This utility model relates to the field of material processing equipment, specifically to a feeding mechanism for processing materials. Background Technology

[0002] In material processing, such as when surface insulation of metal powders is involved, it refers to the formation of a dense oxide film (insulating coating) on ​​the metal surface after specific treatment. This film effectively prevents the metal powder from further reacting with oxygen, water, or other corrosive media in the surrounding environment, thereby significantly slowing down the corrosion rate of the metal powder. This process can make the metal exhibit corrosion resistance properties similar to noble metals, namely, a lower corrosion rate and a higher electrode potential. Once the insulating layer is formed, it can self-repair to a certain extent even in adverse environments, continuing to protect the metal substrate from corrosion.

[0003] Before processing metal materials, they need to be collected into specific collection (feeding) equipment and then transported to passivation equipment and other processes. Before collection, the surface of the metal materials may be mixed with light dust, ash and other impurities. Existing collection equipment generally discharges the collected metal materials directly to the next process such as passivation equipment. Therefore, the impurities carried by the metal materials will be discharged to the next process equipment. On the other hand, when the metal materials are rolled up in the previous process, external dust may also be rolled into the collection equipment, which will also increase the number of impurities entering the subsequent process equipment, thus reducing the quality of the final metal passivation to form an insulating coating layer. Utility Model Content

[0004] The feeding mechanism for processing materials of this utility model can effectively solve the problem that the existing collection equipment for passivation is not conducive to improving the quality of finished products.

[0005] According to one aspect of the present invention, a feeding mechanism for processing materials is provided, with the end pointing in the direction of gravity as the bottom end, comprising:

[0006] The feed cylinder has a top and a bottom opening, and a conveying pipe communicating with the feed cylinder is provided between the top and the bottom opening for feeding materials.

[0007] A dust removal device is installed in the feed cylinder;

[0008] The dust removal device generates negative pressure suction, causing impurities carried by the material to be adsorbed and separated along the direction of the top of the cylinder, and the material is output to the bottom port by gravity.

[0009] In some embodiments, the dust removal device includes a filter screen and a first negative pressure device. The filter screen is disposed inside the feed cylinder, and the first negative pressure device is disposed at the top of the cylinder. The first negative pressure device generates negative pressure suction, causing impurities carried by the material to be adsorbed onto the filter screen. Thus, the filter screen is used to adsorb impurities, and the first negative pressure device is used to generate negative pressure suction to separate impurities.

[0010] In some embodiments, the filter screen is disposed between the top of the cylinder and the feed pipe, and the airflow enters from the feed pipe, passes through the filter screen, and exits to the first negative pressure device. Thus, the filter screen is located above the feed pipe, and the movement directions of impurities and materials are opposite.

[0011] In some embodiments, the conveying pipe or the feed cylinder is equipped with a second negative pressure device, which is connected to the conveying pipe and generates negative pressure suction to adsorb the material into the feed cylinder. Thus, the second negative pressure device further improves the dust removal effect, making it easier to separate impurities.

[0012] In some embodiments, the bottom of the feed cylinder is provided with a swingable bottom cover, which abuts against the bottom opening to close it. Thus, the bottom cover can close the bottom opening, allowing the feed cylinder to temporarily store materials.

[0013] In some embodiments, the bottom of the feed cylinder is further provided with a drive device and a drive rod. The output end of the drive device is drivenly connected to the drive rod, and the free end of the drive rod is connected to the bottom cover to drive the bottom cover to swing. Thus, the drive device and drive rod are used to realize the automatic swinging of the bottom cover, improving the automation level of the feed cylinder.

[0014] In some embodiments, the bottom cover has an arcuate portion that extends into the bottom opening when the bottom cover abuts against it. This arcuate portion enhances the sealing effect of the bottom cover.

[0015] In some embodiments, an output cylinder is connected to the bottom of the feed cylinder, and the bottom cover and the bottom opening are disposed inside the output cylinder. Thus, the output cylinder serves to prevent material leakage when discharged from the bottom opening, and also to prevent the dust-removed material from contacting external dust.

[0016] In some embodiments, the output cylinder is equipped with a vibration device that vibrates the output cylinder and transmits the vibration to the feed cylinder. Thus, the vibration device generates a vibrational force, thereby discharging material from the inner walls of the feed and output cylinders through vibration.

[0017] In some embodiments, a cleaning unit is connected to the top of the feed cylinder. The cleaning unit includes a water supply pipe and a spraying device. The output end of the spraying device is connected to the feed cylinder, and the water supply pipe is connected to the spraying device. Liquid is sprayed through the spraying device to clean the inside of the feed cylinder. Thus, the cleaning unit is used to clean the inside of the feed cylinder, facilitating its maintenance.

[0018] Compared with the prior art, the feeding mechanism for processing materials of this utility model has the following advantages:

[0019] This application incorporates a dust removal device in the feed cylinder, with the conveying pipe connected to the feed cylinder to allow material to enter from the conveying pipe. The dust removal device generates negative pressure suction, causing impurities carried by the material to be adsorbed and separated along the top of the cylinder. The material is then output to the bottom under its own weight. Therefore, after the material enters the feed cylinder, it undergoes a dust removal process before being output to the equipment for subsequent processes. This prevents impurities from being mixed into the passivation process at the initial feeding stage, effectively improving the quality of the passivation process that forms the insulating coating. It eliminates the need for dedicated dust removal equipment, simplifying the passivation process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external appearance of the feeding mechanism for processing materials according to this utility model.

[0021] Figure 2 This is a partial cross-sectional schematic diagram of the feeding mechanism for processing materials according to this utility model;

[0022] Figure 3 for Figure 2 A schematic diagram of the middle output cylinder section;

[0023] Figure 4 This is a schematic diagram of another embodiment of the feeding mechanism for processing materials according to this utility model;

[0024] Figure 5 for Figure 4 Enlarged view of section A.

[0025] In the diagram: 1-feed cylinder, 11-top of cylinder, 12-bottom opening, 13-feeding pipe, 21-filter screen, 22-first negative pressure device, 14-second negative pressure device, 15-output cylinder, 16-vibration device, 17-bottom cover, 31-drive device, 32-drive rod, 171-arc section, 18-cleaning unit, 19-waste powder bin, 191-opening, 4-third negative pressure device, 41-connecting pipe. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] This utility model relates to a feeding mechanism for processing materials, which can be applied to processes such as feeding, physicochemical reaction, passivation reaction, and drying. It is also applicable to other material processing processes, such as an input mechanism before passivating materials. The materials include soft magnetic metal particles, metal or non-metal powders, and other discrete raw materials. The materials are input from the previous process equipment and generally carry dust, ash, and other impurities on their surface. During the material falling process, the impurities will float and accumulate on the inner wall of the collection equipment or remain directly on the surface of the material. These impurities will easily become mixed in during the subsequent spraying of passivation liquid. Therefore, it is necessary to remove dust before material processing.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] Figure 1 The diagram schematically illustrates a material feeding mechanism for processing materials according to one embodiment of the present invention. (See figure.) Figure 2 As shown, the side pointing in the direction of gravity is the bottom (lower side), and the opposite side is the top (upper side). The feeding mechanism for processing materials includes a feed cylinder 1 and a dust removal device.

[0031] like Figure 2As shown, the feed cylinder 1 is a metal cylindrical structure, assembled from various parts. Its interior is hollow. A top 11 covers the top of the feed cylinder 1, and a bottom opening 12 is located at the bottom for material discharge. The bottom opening 12 is generally connected to the subsequent passivation process. The top 11 and bottom opening 12 are positioned opposite each other in the direction of gravity. The bottom of the feed cylinder 1 has a funnel-shaped structure to facilitate material flow. A conveying pipe 13 is located near the bottom of the feed cylinder 1 for receiving materials transferred from the previous process. The conveying pipe 13 is located between the top 11 and the bottom opening 12 and is connected to the interior of the feed cylinder 1. After entering through the conveying pipe 13, the material falls to the bottom opening 12 under its own weight.

[0032] The dust removal device generates negative pressure suction to attract the internal components of the feed cylinder 1. The dust removal device includes a filter screen 21 and a first negative pressure device 22. The filter screen 21 is located inside the feed cylinder 1, between the top 11 and the conveying pipe 13, i.e., above the conveying pipe 13. The filter screen 21 can adopt a commonly used filter screen structure in the art. Preferably, the filter screen 21 is detachably connected inside the feed cylinder 1 and can be detachably separated using a snap-fit ​​structure, facilitating regular replacement and cleaning. The filter screen 21 can block dust and other impurities from being output, allowing airflow to pass through. The first negative pressure device 22 generates negative pressure suction and is located outside the feed cylinder 1. The first negative pressure device 22 is specifically a negative pressure fan, which has an input end and an output end. The input end of the first negative pressure device 22 can be connected to the inside of the feed cylinder 1 through a conduit structure, and the output end of the first negative pressure device 22 is the airflow output end. It can also be installed or extended to the outside using a conduit.

[0033] As can be seen, the feed pipe 13 is the input end of the airflow. The first negative pressure device 22 generates negative pressure suction to drive the airflow output. The airflow direction in the feed cylinder 1 is from bottom to top. When in use, the material is input into the feed cylinder 1 and gradually falls to the bottom opening 12. The first negative pressure device 22 is activated to generate negative pressure suction, which adsorbs and separates the impurities on the surface of the material. The impurities will adhere to the filter screen 21 along the direction of the top of the cylinder 11 (the opposite direction of gravity). The filter screen 21 blocks the impurities from continuing to be output to the output end of the first negative pressure device 22. Therefore, the impurities can be quickly separated and will continuously adhere to and accumulate on the filter screen 21. The filter screen 21 can be replaced and cleaned regularly to achieve dust removal before the material enters the spray passivation liquid.

[0034] Furthermore, a second negative pressure device 14 is provided on the conveying pipe 13 or the feeding cylinder 1. In this embodiment, the second negative pressure device 14 is provided on the conveying pipe 13 and is used to adsorb and feed the material from the previous process. The second negative pressure device 14 is specifically a negative pressure fan, which is used to generate negative pressure suction on the conveying pipe 13. On the one hand, it can enhance the adsorption force of the dust removal device, so that impurities on the surface of the material can be more easily adsorbed onto the filter screen 21. On the other hand, it can also facilitate the acceleration of the feeding speed. Moreover, the second negative pressure device 14 can adsorb some of the impurities on the surface of the material in the conveying pipe 13, which is conducive to further improving the dust removal effect.

[0035] Furthermore, such as Figure 3 As shown, an output cylinder 15 is provided at the bottom of the feed cylinder 1. The output cylinder 15 and the feed cylinder 1 can be fixedly connected. The output cylinder 15 is used to surround the bottom opening 12 to prevent the bottom opening 12 from spreading or leaking when outputting materials. The bottom end of the output cylinder 15 is generally connected to the input of the processing equipment of the next process, which can prevent dust and other impurities from the outside of the feed cylinder 1 or the outside air from contacting it. It can be seen that the bottom opening 12 is located inside the output cylinder 15. In this embodiment, the bottom opening 12 and the funnel-shaped bottom part of the feed cylinder 1 extend into the inside of the output cylinder 15, which facilitates the improvement of the support strength of the output cylinder 15 for the feed cylinder 1 and helps to improve the balance of the feed cylinder 1. The output cylinder 15 is provided with a vibration device 16 on the outside. The vibration device 16 is a vibrator, which can be referred to in the prior art. The vibrator can generate vibration on the output cylinder 15, thereby discharging and outputting the material remaining inside the output cylinder 15 through vibration. At the same time, the output cylinder 15 is fixedly connected to the feed cylinder 1. The vibration force generated by the vibration device 16 can be transmitted to the feed cylinder 1. That is, the vibration can also occur at the funnel-shaped structure at the bottom of the feed cylinder 1, which can facilitate the discharge of the material remaining on the inner wall of the feed cylinder 1.

[0036] In some embodiments, such as Figure 3As shown, the bottom opening 12 is provided with a swingable bottom cover 17. The shape of the bottom cover 17 corresponds to the bottom opening 12. The bottom cover 17 can abut against the bottom opening 12 to close the bottom opening 12 by swinging. In this embodiment, an automatic closing structure is adopted. Specifically, a driving device 31 and a driving rod 32 are provided at the bottom of the feed cylinder 1. The driving device 31 is preferably a motor. The output end of the driving device 31 is driven and connected to the driving rod 32. The driving rod 32 adopts a rod-shaped structure. The free end of the driving rod 32 is connected to the bottom of the bottom cover 17. When the driving device 31 is started, it can drive the driving rod 32 to swing, thereby driving the bottom cover 17 to swing, so that the bottom cover 17 can abut against the bottom opening 12 to close the bottom opening 12. Therefore, when the bottom opening 12 is closed, the feed cylinder 1 can have the function of temporary storage, and can also quantitatively control the amount of material output from the bottom opening 12, which is beneficial to improving the automation level of the process in the passivation material. The bottom cover 17 is also located inside the output cylinder 15. During the process of the bottom cover 17 swinging to open or close the bottom opening 12, the material may leak due to contact with the bottom cover 17. The output cylinder 15 can effectively surround the material to prevent leakage. The drive device 31 can be set on the outside of the output cylinder 15. The output end of the drive device 31 can extend to the inside of the output cylinder 15 and be connected to the drive rod 32.

[0037] Furthermore, an arc-shaped portion 171 is provided on the bottom cover 17. The arc-shaped portion 171 adopts an arc-shaped structure that protrudes on the bottom cover 17. It is set apart from the drive rod 32 on the bottom cover 17. The arc-shaped portion 171 can be made of a deformable elastic material. When the bottom cover 17 abuts against the bottom opening 12 to close the bottom opening 12, the arc-shaped portion 171 can extend into the bottom opening 12, which can further seal the bottom opening 12. The arc-shaped structure of the arc-shaped portion 171 is conducive to easy separation when separating from and abutting the bottom opening 12 and facilitates the deformation of the arc-shaped portion 171, thereby improving the adaptability of the bottom cover 17.

[0038] In some embodiments, such as Figure 2 As shown, a cleaning unit 18 is connected to the top 11 of the cylinder. The cleaning unit 18 can be arranged opposite to the first negative pressure device 22. The cleaning unit 18 is used to clean the inside of the feed cylinder 1. The cleaning unit 18 includes a water supply pipe and a spraying device. The water supply pipe is connected to the spraying device, and the other end of the water supply pipe can be connected to a water tank or a cleaning liquid pipe. The spraying device includes a nozzle (or a spray head) and an air pump. The nozzle can be set inside the top 11 of the cylinder. The air pump is connected to the nozzle. The cleaning liquid in the water supply pipe is sprayed into the inside of the feed cylinder 1 through the nozzle and the air pump. The cleaning waste liquid is discharged through the bottom port 12. Finally, the first negative pressure device 22 is used to ventilate the inside of the feed cylinder 1 to accelerate drying. The structure of the nozzle, spray head, air pump, etc. can refer to the existing technology, or existing pneumatic or electric spraying devices can be directly used.

[0039] In some embodiments, such as Figure 4 , Figure 5As shown, the filter screen 21 is inclinedly arranged inside the feed cylinder 1. Inside the feed cylinder 1, there is a waste powder bin 19, which is used to temporarily store accumulated dust and other impurities. The waste powder bin 19 has an opening 191, which is corresponding to the downstream end of the filter screen 21. Preferably, the downstream end of the filter screen 21 extends from the opening 191 into the interior of the waste powder bin 19. Furthermore, a third negative pressure device 4 is provided on the top 11 of the cylinder. The third negative pressure device 4 is specifically a motor. The third negative pressure device 4 is connected to the waste powder bin 19 through a connecting pipe 41. The connecting pipe 41 can extend into the interior of the feed cylinder 1 or be introduced into the waste powder bin 19 from the outside of the feed cylinder 1. When impurities accumulate to a certain extent on the filter screen 21, they gradually fall into the waste powder bin 19 as the filter screen 21 tilts. After the third negative pressure device 4 is activated, it generates negative pressure suction to draw the impurities in the waste powder bin 19 to the outside through the connecting pipe 41 (output end of the third negative pressure device 4). The portion of impurities that do not fall into the waste powder bin 19 can be drawn to the outside by the first negative pressure device 22. In actual use, it can also be used in conjunction with the vibration of the vibration device 16 to accelerate the falling of dust and other impurities on the filter screen 21, which is beneficial to the dust removal structure of the feed cylinder 1. In addition, the above structure can also be used after the material is discharged from the bottom port 12, that is, after the material has completed the feeding and dust removal process in the feed cylinder 1. It can be used for subsequent cleaning and maintenance of the feed cylinder 1, which is beneficial for cleaning the filter screen 21 and facilitates the secondary use of the filter screen 21.

[0040] The above description is merely a preferred embodiment of the present utility model. To simplify the description, not all possible combinations of the various technical features in the above embodiments have been described, and this is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A material feeding mechanism for processing material, having a bottom on the side in the direction of gravity, characterized in that, The utility model provides a feeding cylinder, a dust removal device and a cleaning unit, and the dust removal device is arranged on the feeding cylinder. The dust removal device generates a negative pressure suction force, so that the impurities carried by the material are adsorbed and separated along the direction of the cylinder top, and the material is output to the bottom opening by gravity. The dust removal device includes a filter screen and a first negative pressure device, the filter screen is arranged in the feeding cylinder, and the first negative pressure device is arranged on the cylinder top. The filter screen is arranged between the cylinder top and the feeding pipe, and air flow enters the first negative pressure device from the feeding pipe through the filter screen.

2. The material handling feed mechanism of claim 1, wherein, The feeding pipe or the feeding cylinder is provided with a second negative pressure device, the second negative pressure device is communicated with the feeding pipe and generates a negative pressure suction force to adsorb the material into the feeding cylinder.

3. The material handling feed mechanism of claim 2, wherein, The bottom of the feeding cylinder is provided with a swingable bottom cover, the bottom cover abuts against the bottom opening to close the bottom opening.

4. The material handling feed mechanism of claim 1, wherein, The bottom of the feeding cylinder is also provided with a driving device and a driving rod, the output end of the driving device is drivingly connected with the driving rod, and the free end of the driving rod is connected with the bottom cover to swing the bottom cover.

5. The material handling feed mechanism of claim 1 wherein, The bottom cover is provided with a circular arc part, and when the bottom cover abuts against the bottom opening, the circular arc part extends into the bottom opening.

6. The material handling feed mechanism of claim 5, wherein, The bottom of the feeding cylinder is connected with an output cylinder, and the bottom cover and the bottom opening are arranged in the output cylinder.

7. The material handling feed mechanism of claim 5, wherein, The output cylinder is provided with a vibration device, the vibration device generates vibration to the output cylinder and transmits to the feeding cylinder.

8. The material handling feed mechanism of claim 5, wherein, The cylinder top is connected with a cleaning unit, the cleaning unit includes a water pipe and a spray cleaning device, the output end of the spray cleaning device is communicated with the feeding cylinder, the water pipe is connected with the spray cleaning device, and the spray cleaning device sprays liquid to clean the inside of the feeding cylinder.

9. The material handling feed mechanism of claim 8, wherein, ​ 10. The material handling feed mechanism of claim 1, wherein, ​

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