Powder flight conveyor for optical material feedstock

Abstract

This application relates to a powder scraper conveyor for optical material raw materials, belonging to the technical field of conveying devices. A powder scraper conveyor for optical material raw materials includes a conveyor housing with an inlet and an outlet. A circulating chain and sprockets for driving the chain rotation are installed inside the conveyor housing. It also includes: multiple sets of conveying scrapers, evenly spaced and mounted on the chain; an extension plate rotatably connected to the conveying scrapers; and a lifting assembly mounted on the conveying scrapers. During raw material conveying, the lifting assembly lifts and rotates the extension plate to support the raw material. This invention drives the extension plate to unfold via the lifting assembly, increasing the area for receiving the raw material, reducing powder slippage during inclined conveying, and suppressing dust generation.

Description

Technical Field

[0001] This application relates to the field of conveying devices, and in particular to a powder scraper conveyor for optical material raw materials. Background Technology

[0002] In the process of conveying optical material raw materials, a powder scraper conveyor is required. It has a conveyor shell with a low-level feed port and a high-level discharge port. Inside the shell, there is a sprocket-driven circulating chain with scrapers fixed on the chain. The scrapers push the powder raw materials from the horizontal feed section to the inclined lifting section and finally discharge them from the discharge port, completing the continuous lifting and conveying of powder materials. It has the advantage of preventing blockage.

[0003] However, in the current scraper conveyor, during the tilting and lifting of powder, the powder pushed by the scraper is prone to slipping and falling to the rear scraper, causing the powder to flow continuously and spread in the shell, forming dust. Finally, it is discharged from the outlet with the airflow, directly polluting the workshop production environment. Furthermore, if the scraper area is simply increased to increase the conveying capacity and suppress material falling, the scraper height will increase, making it easy to rub against the sprocket and cause scraper deformation. At the same time, it will aggravate the swaying during the chain conveying process, which will further aggravate the powder flow and dust, affecting the stable operation of the equipment. Summary of the Invention

[0004] Based on this, it is necessary to address the aforementioned technical problems by providing a powder scraper conveyor for optical material raw materials, comprising a conveyor housing, an inlet and an outlet on the conveyor housing, and a circulating chain and a sprocket for driving the chain to rotate, further comprising: Multiple sets of conveying scrapers are installed at equal intervals on the chain; An extension plate is rotatably connected to the conveying scraper. The lifting assembly, installed on the conveying scraper, lifts and rotates the extension plate to support the raw material during the conveying process.

[0005] Preferably, the conveying scraper is inclined, and the extension plate is perpendicular to the bottom of the conveyor housing after rotation.

[0006] Preferably, the lifting assembly includes a connecting plate, a lifting rod, and a spring. The connecting plate is fixedly connected to the conveying scraper, the lifting rod is slidably connected to the connecting plate, and the spring is sleeved on the lifting rod. The two ends of the spring are respectively connected to the lifting rod and the connecting plate. By abutting against the bottom of the conveyor housing, the lifting rod moves upward on the connecting plate, lifting and rotating the extension plate.

[0007] Preferably, when the push rod approaches the sprocket via the chain, the conveyor housing no longer presses against the push rod, thus freeing the extension plate from restriction.

[0008] Preferably, a first limiting block is fixedly connected to the top rod. When the top rod causes the extension plate to rotate perpendicular to the bottom of the conveyor housing, the first limiting block abuts against the bottom of the connecting plate. A second limiting block is fixedly connected to the top rod.

[0009] Preferably, the conveyor housing is provided with an extension rod at the discharge port that matches the position of the top rod.

[0010] Preferably, the extension plate located on the return direction chain is perpendicular to the bottom of the conveyor housing, and the lower end of the upper extension plate is close to the upper end of the lower extension plate.

[0011] Preferably, a drive motor is fixedly connected to the outer shell of the conveyor, a rotating seat is installed inside the outer shell of the conveyor, a striking rod is eccentrically installed on the rotating seat, and the output end of the drive motor is fixedly connected to the rotating seat.

[0012] Preferably, the striking rod is located between the feed inlet and the sprocket inside the conveyor housing.

[0013] Preferably, multiple sets of chain support plates are installed inside the conveyor housing, all of which are used to support the chain from the bottom.

[0014] Compared with the prior art, the present invention provides a powder scraper conveyor for optical material raw materials, which has the following beneficial effects: 1. The lifting component drives the extension plate to unfold, increasing the area for receiving raw materials, reducing the flow and slippage of powder during inclined conveying, and suppressing dust generation.

[0015] 2. The inclined conveying scraper and the vertically extended plate form a material-collecting angle, which conveys materials by shoveling and pushing, preventing materials from falling to the next level and further reducing the risk of dust diffusion.

[0016] 3. The extension plate of the return section hangs down naturally, and the upper and lower extension plates form an airflow barrier structure, which effectively controls the dust diffusion generated by the material falling from the feed inlet, prevents dust from entering the lifting section and being discharged from the discharge outlet, and at the same time reduces the dispersion of powder to the sprocket area, reduces the risk of powder sticking to the sprocket and powder entering the bearing, and improves the service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 For the present invention Figure 2 An enlarged schematic diagram of part A in the middle; Figure 4 This is a side view of the present invention; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of part B in the middle; Figure 6 For the present invention Figure 4 An enlarged schematic diagram of section C; Figure 7 For the present invention Figure 5 An enlarged schematic diagram of section D in the middle; Figure 8 This is a schematic diagram of the structure of the feed inlet of the conveyor shell in this invention; Figure 9 For the present invention Figure 8 An enlarged schematic diagram of section E in the middle; Figure 10 This is a schematic diagram of the conveying scraper, extension plate, and lifting assembly in this invention.

[0018] In the diagram: 1. Conveyor housing; 101. Feed inlet; 102. Discharge outlet; 2. Conveying scraper; 3. Extension plate; 301. Sealing rubber gasket; 401. Connecting plate; 402. Top rod; 5. Spring component; 601. First limit block; 602. Second limit block; 7. Chain support plate; 801. Drive motor; 802. Rotating seat; 803. Striking rod; 9. Extension rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] Example: Refer to Figures 1-4 A powder scraper conveyor for optical material raw materials includes a conveyor housing 1. The conveyor housing 1 has an inlet 101 and an outlet 102 at both ends. The inlet 101 is located at a lower position, and the outlet 102 is located at a higher position. A circulating chain and a sprocket for driving the chain are installed inside the conveyor housing 1. Multiple sets of scrapers are mounted on the chain, and the scrapers are close to the conveyor housing 1. In use, the optical material raw materials are continuously poured into the conveyor housing 1 through the inlet 101. The sprocket drives the chain to circulate, and the scrapers move accordingly. The scraper located below the feed inlet 101 will continuously push the powdered raw material, causing it to move horizontally at the feed inlet 101 until it reaches the inclined lifting conveying section of the conveyor housing 1. Under the action of the scraper, the powdered raw material will continuously move upward along the inclined lifting conveying section, eventually reaching the discharge outlet 102 and being discharged along the discharge outlet 102, completing the lifting and conveying of the powdered raw material. Subsequently, the scraper rotates with the chain inside the conveyor housing 1 and recycles to the feed inlet 101, continuously conveying the powdered raw material. However, during the inclined lifting and conveying process, some of the powdery raw materials pushed by the scraper will fall off. This fallen powdery raw material will fall onto the scraper behind, which in turn will cause the powdery raw material on the scraper to flow. As the powdery raw material flows continuously, it will form dust that fills the air. Dust will be generated inside the conveyor shell 1. The powdery raw material that fills the air will eventually be discharged through the discharge port 102, which will ultimately affect the workshop environment.

[0021] To address the issue of powdery raw materials on the scraper easily flowing and causing dust generation during inclined conveying, the following implementation method can be adopted, such as... Figure 3 , Figures 7-10 As shown, multiple sets of conveying scrapers 2 are installed at equal intervals on the chain. Extension plates 3 are rotatably connected to the conveying scrapers 2 via rotating shafts. A sealing rubber pad 301 is installed on the side of the conveying scraper 2 near the material conveying end of the rotating shaft. A lifting assembly is installed on the conveying scraper 2 to lift and rotate the extension plates 3. When conveying raw materials, when the conveying scraper 2 is close to the bottom of the conveyor housing 1, the lifting assembly will cause the extension plates 3, which were originally parallel to the bottom of the conveyor housing 1, to rotate along the rotating shaft. Simultaneously, the extension plates 3 will squeeze the sealing rubber pad 301, filling the gap between the extension plates 3 and the conveying scrapers 2, preventing powdery raw materials from passing through the gap between the extension plates 3 and the conveying scrapers 2. In the case of leakage, the rotated extension plate 3 can increase the area for receiving raw materials. During the inclined lifting and conveying process, it can effectively reduce material flow and thus reduce dust generation. It can also carry more raw materials during the conveying process, improving conveying efficiency. Compared with the traditional method of simply increasing the area of ​​the scraper, increasing the area of ​​the scraper will increase the height of the scraper. When it comes into contact with the sprocket later, it is easy to cause scraping, which will cause the scraper to deform and affect its use. In addition, increasing the area of ​​the scraper on one side will cause the chain to swing more during the transportation process, which will further cause the raw materials to flow and generate dust, which is not conducive to the use of the scraper conveyor.

[0022] In a preferred embodiment, such as Figure 6 As shown, the conveying scraper 2 is inclined, and the extension plate 3 is perpendicular to the bottom of the conveyor housing 1 after rotation. An angle is formed between the conveying scraper 2 and the extension plate 3, and the raw material will move towards the extension plate 3. The conveying scraper 2 and the extension plate 3 can form a material-catching angle, pushing the material upward like a shovel, preventing the material from falling to the next level, increasing the actual conveying capacity, and preventing the material from flowing along the extension plate 3 to other conveying scrapers 2 during the inclined lifting and conveying process, reducing the phenomenon of dust diffusion. In addition, the extension plate 3 and the conveying scraper 2 in the material-catching state can make the material gather, and when it falls from the discharge port 102, it will gather and fall, reducing the generation of dust.

[0023] In a preferred embodiment, such as Figure 10 As shown, the lifting assembly includes a connecting plate 401, a lifting rod 402, and a spring 5. The connecting plate 401 is fixedly connected to the conveying scraper 2, the lifting rod 402 is slidably connected to the connecting plate 401, and the spring 5 is sleeved on the lifting rod 402. The two ends of the spring 5 are connected to the lifting rod 402 and the connecting plate 401, respectively. When the lifting rod 402 moves to contact the bottom of the conveyor housing 1 via the chain, the lifting rod 402 will abut against the bottom of the conveyor housing 1, squeezing the lifting rod 402. The lifting rod 402 moves upward on the connecting plate 401, lifting the originally horizontal extension plate 3 and causing the extension plate 3 to rotate along the rotation axis until it becomes vertical. This allows the extension plate 3 to maintain a stable vertical state before entering the feed inlet 101, thereby pushing the raw material until it reaches the inclined lifting conveying section to lift and convey the raw material. This avoids the extension plate 3 becoming unstable in the lifting conveying section, causing the raw material to flow onto the conveying scraper 2 below, thus improving the stability during the conveying process.

[0024] In a preferred embodiment, such as Figures 4-7 As shown, when the push rod 402 approaches the sprocket via the chain, the push rod 402 moves away from the conveyor housing 1. The push rod 402 on the return section chain also moves away from the conveyor housing 1. The extension plate 3 on the return direction chain is perpendicular to the bottom of the conveyor housing 1, and the lower end of the upper extension plate 3 is close to the upper end of the lower extension plate 3. To avoid damage caused by the push rod 402 still lifting the extension plate 3 when approaching the sprocket, resulting in shaft contact between the extension plate 3 and the sprocket, the push rod 402 needs to retract when approaching the sprocket. Furthermore, the push rod 402 on the upper return section chain does not contact the conveyor housing 1, preventing the spring 5 from being in a compressed state for a long time and affecting its elastic potential energy. This ensures that the lifting assembly and the extension plate 3 can operate normally for a long time. This design improves service life. When the extension plate 3 hangs down naturally, the upper and lower extension plates 3 can block the airflow, preventing the dust from spreading widely from the feed inlet 101. This has a certain dust reduction effect, controlling the dust from the feed inlet 101 and preventing it from entering the lifting and conveying section and being discharged through the outlet 102. This further reduces dust dispersion and the amount of powdery material entering the sprocket section along the gas flow, reducing the amount of powdery material adhering to the sprocket and the amount of powdery material entering the sprocket's internal bearings. This improves the sprocket's service life and reduces the frequency of sprocket maintenance.

[0025] In a preferred embodiment, such as Figure 5As shown, a first limiting block 601 is fixedly connected to the top rod 402. When the top rod 402 causes the extension plate 3 to rotate perpendicularly and the lower end of the upper extension plate 3 approaches the upper end of the lower extension plate 3, the first limiting block 601 abuts against the bottom of the connecting plate 401. A second limiting block 602 is fixedly connected to the top rod 402. The setting of the first limiting block 601 can restrict the movement of the top rod 402. During the conveying process, the top rod 402 will form a right-angled triangle with the conveying scraper 2, which can effectively improve the stability of the conveying scraper 2 and avoid the tilting caused by the self-shaking of the conveying scraper 2 during use. This can effectively improve the stability of the material conveying and avoid the occurrence of problems during the lifting and conveying process. The material flow caused by the shaking of the conveying scraper 2 further reduces dust generation. When the push rod 402 moves to the discharge port 102, it separates from the conveyor housing 1. Under the action of the spring 5, the push rod 402 returns to its original position. At the same time, the second limiting block 602 can quickly strike the connecting plate 401 to generate vibration. The vibration is transmitted to the conveying scraper 2, causing the material pushed on the conveying scraper 2 to fall quickly, reducing the adhesion of powdery material to the conveying scraper 2 and the extension plate 3. Meanwhile, the push rod 402 moves away from the extension plate 3. When the extension plate 3 approaches the sprocket shaft, it will be squeezed and rotate, avoiding damage caused by hard contact and improving service life. In addition, the lower end of the conveying scraper 2 is inclined in the conveying direction, mainly to prevent it from swinging backward after encountering resistance, resulting in flow gaps at the bottom.

[0026] In a preferred embodiment, such as Figure 5 As shown, the conveyor housing 1 has an extension rod 9 at the discharge port 102 that matches the position of the top rod 402. To prevent the extension plate 3 from resuming rotation and causing some raw material to be squeezed out of the extension plate 3 and flow back into the lifting and conveying section when the top rod 402 separates from the conveyor housing 1 just after entering the discharge port 102, a short section of the extension rod 9 is provided at the discharge port 102. The extension rod 9 continues to press against the top rod 402, preventing the extension plate 3 from rotating. When the material is at this section of the extension rod 9, it can slide smoothly along the conveying scraper 2, avoiding the situation where the material flows back into the lifting and conveying section due to the resetting of the extension plate 3, and further reducing the generation of dust in the conveyor housing 1.

[0027] In a preferred embodiment, such as Figure 6 and Figure 9As shown, a drive motor 801 is fixedly connected to the conveyor housing 1, and a rotating seat 802 is installed inside the conveyor housing 1. A striking rod 803 is eccentrically mounted on the rotating seat 802. The output end of the drive motor 801 is fixedly connected to the rotating seat 802. Since the powdered material has high adsorption properties, it is easy to be adsorbed on the conveying scraper 2 and the extension plate 3. At this time, the drive motor 801 drives the rotating seat 802 to rotate, and the striking rod 803 will rotate in a circular motion and contact the returning extension plate 3, applying a knocking vibration to the extension plate 3, causing the powdered material adhering to the extension plate 3 to fall off. The vibration will also be transmitted to the conveying scraper 2, causing some of the powdered material adhering to the conveying scraper 2 to fall off as well, reducing the situation where the powdered material adheres to the conveying scraper 2 and the extension plate 3.

[0028] In a preferred embodiment, such as Figure 6 As shown, the striking rod 803 is located between the feed inlet 101 and the sprocket inside the conveyor housing 1. Since the conveying scraper 2 and the extension plate 3 pass through the feed inlet 101, a large amount of powdery material falling into the feed inlet 101 will adhere to the conveying scraper 2 and the extension plate 3. By placing the striking rod 803 between the feed inlet 101 and the sprocket inside the conveyor housing 1, the conveying scraper 2 and the extension plate 3, which have a large amount of powdery material adhering to them due to passing through the feed inlet 101, can effectively clean them. The fallen powdery material will fall to the bottom, and the conveying scraper 2 and the extension plate 3, which will be conveyed below, will transport the fallen powder, reducing waste and preventing the powdery material adhering to the conveying scraper 2 and the extension plate 3 from falling off at the sprocket due to vibration. This reduces the amount of powder adhering to the sprocket, reduces the frequency of cleaning and maintenance, reduces the occurrence of powdery material entering the bearing inside the sprocket, and improves the service life of the sprocket. Furthermore, the striking rod 803 can rotate clockwise at this time. When the extension plate 3 comes into the rotation range of the striking rod 803, the striking rod 803 rotates quickly and contacts the extension plate 3, causing the extension plate 3 to be subjected to force and rotate quickly along the rotating axis. It then comes into rapid contact with the conveying scraper 2 to generate vibration, causing the powdery material adhering to the conveying scraper 2 to fall off. Compared with the vibration transmitted by the extension plate 3, the vibration generated by the direct contact between the two is greater and the cleaning effect is better.

[0029] In a preferred embodiment, such as Figure 6As shown, multiple sets of chain support plates 7 are installed inside the conveyor housing 1, all used to support the chain from the bottom. Because the top rod 402 is always in contact with the bottom of the conveyor housing 1 during feeding, it divides the chain into small areas, which plays a stabilizing role for the chain. At this time, only the chain support plates 7 that support the chain upward need to be installed inside the conveyor housing 1 to further stabilize the chain and avoid the jumping of the conveyor scraper 2 and extension plate 3 caused by chain jumping or fluctuation, thus improving the stability of conveying powdery materials. Compared with the traditional method that requires two sets of chain support plates 7 to assist in stabilizing the chain, this device only needs to set the chain support plates 7 that support the chain upward to achieve chain stability, making maintenance more convenient and the cost relatively low.

Claims

1. A powder scraper conveyor for optical material raw materials, comprising a conveyor housing (1), wherein the conveyor housing (1) is provided with an inlet (101) and an outlet (102), and wherein a circulating chain and a sprocket for driving the chain to rotate are installed inside the conveyor housing (1), characterized in that, Also includes: Multiple sets of conveying scrapers (2) are installed at equal intervals on the chain; An extension plate (3) is rotatably connected to the conveying scraper (2); The lifting assembly is installed on the conveying scraper (2). During the conveying of raw materials, the lifting assembly lifts the extension plate (3) and rotates it to support the raw materials.

2. The powder scraper conveyor for optical material raw materials according to claim 1, characterized in that, The conveying scraper (2) is inclined, and the extension plate (3) is perpendicular to the bottom of the conveyor housing (1) after rotation.

3. A powder scraper conveyor for optical material raw materials according to claim 2, characterized in that, The lifting assembly includes a connecting plate (401), a lifting rod (402), and a spring (5). The connecting plate (401) is fixedly connected to the conveying scraper (2). The lifting rod (402) is slidably connected to the connecting plate (401). The spring (5) is sleeved on the lifting rod (402). The two ends of the spring (5) are respectively connected to the lifting rod (402) and the connecting plate (401). The push rod (402) abuts against the bottom of the conveyor housing (1), causing the push rod (402) to move upward on the connecting plate (401), lifting and rotating the extension plate (3).

4. A powder scraper conveyor for optical material raw materials according to claim 3, characterized in that, When the top rod (402) approaches the sprocket via the chain, the conveyor housing (1) no longer presses against the top rod (402), so that the extension plate (3) is no longer restricted.

5. A powder scraper conveyor for optical material raw materials according to claim 4, characterized in that, A first limiting block (601) is fixedly connected to the top rod (402). When the top rod (402) causes the extension plate (3) to rotate perpendicular to the bottom of the conveyor housing (1), the first limiting block (601) abuts against the bottom of the connecting plate (401). A second limiting block (602) is fixedly connected to the top rod (402).

6. A powder scraper conveyor for optical material raw materials according to claim 5, characterized in that, The conveyor housing (1) is provided with an extension rod (9) at the discharge port (102) that matches the position of the top rod (402).

7. A powder scraper conveyor for optical material raw materials according to claim 1, characterized in that, The extension plate (3) located on the chain in the return direction is perpendicular to the bottom of the conveyor housing (1), and the lower end of the upper extension plate (3) is close to the upper end of the lower extension plate (3).

8. A powder scraper conveyor for optical material raw materials according to claim 1, characterized in that, A drive motor (801) is fixedly connected to the outer shell (1) of the conveyor. A rotating seat (802) is installed inside the outer shell (1). A striking rod (803) is eccentrically installed on the rotating seat (802). The output end of the drive motor (801) is fixedly connected to the rotating seat (802).

9. A powder scraper conveyor for optical material raw materials according to claim 8, characterized in that, The striking bar (803) is located between the feed inlet (101) and the inner sprocket of the conveyor housing (1).

10. A powder scraper conveyor for optical material raw materials according to claim 1, characterized in that, Multiple sets of chain support plates (7) are installed inside the conveyor housing (1), all of which are used to support the chain from the bottom.

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