Aluminum particle oxidation-preventing feeding structure

Abstract

This utility model discloses an anti-oxidation feeding structure for aluminum granules. An anti-oxidation structure is provided above the belt conveyor to cover the aluminum granules on the conveyor belt and reduce oxidation. The anti-oxidation structure includes a covering film, a conveyor belt, and a conveying structure that drives the covering film to convey the aluminum granules synchronously. Edge-pressing structures are installed on both sides of the belt conveyor to press the covering film firmly against the surface of the conveyor belt. A negative pressure structure is provided below the conveyor belt to hold the covering film firmly against the conveyor belt. The covering film of this utility model is relatively stationary with the belt conveyor through the conveying structure, and is opened from one end to the other. This allows the covering film to remain relatively stationary on the conveying path from the time the aluminum granules enter the conveyor until they are discharged from one end. Simultaneously, opening one end of the covering film does not affect the entry of aluminum granules into the conveyor or their unloading from the conveyor, thus achieving dynamic anti-oxidation on the conveying path.

Description

Technical Field

[0001] This utility model relates to the field of aluminum granule production technology, specifically to an aluminum granule anti-oxidation feeding structure. Background Technology

[0002] Aluminum granules react rapidly with oxygen in the air to form a dense aluminum oxide film. During alloying, this aluminum oxide layer hinders the uniform and efficient incorporation of aluminum into the base metal, affecting the precise control of alloy composition and performance. Therefore, aluminum granule feeding requires oxidation prevention.

[0003] Currently, there are several types of aluminum granule feeders: vibrating feeders, screw feeders, belt feeders, rotary valve feeders, and loss-in-weight feeders. Among them, belt feeders have a large conveying capacity and less wear on materials. For aluminum granules with a diameter ≥2mm, such as rice grains, beans, or flakes, without obvious ultrafine powder, belt feeders are often used when the precision requirements are not extremely stringent.

[0004] However, the aluminum particles do not have good anti-oxidation properties under the open structure of the belt feeder. Utility Model Content

[0005] The purpose of this utility model is to provide an aluminum particle anti-oxidation feeding structure. By setting a covering film above the belt feeder to cover the aluminum particles on the conveying path, the contact area between the aluminum particles and the air is reduced, thereby improving the anti-oxidation effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an aluminum granule anti-oxidation feeding structure, comprising a belt conveyor for conveying aluminum granules, wherein an anti-oxidation structure is provided above the belt conveyor to cover the aluminum granules on the conveyor belt to reduce oxidation;

[0007] The anti-oxidation structure includes a cover film, a conveyor belt, and a conveying structure that drives the cover film and aluminum particles to be conveyed synchronously. The two sides of the belt conveyor are equipped with pressing structures that can press the cover film onto the upper surface of the conveyor belt. A negative pressure structure is provided below the conveyor belt that can suck the cover film onto the upper surface of the conveyor belt.

[0008] Preferably, the conveying structure includes a frame and a drive roller and a transmission roller rotatably connected within the frame. A rotating motor is installed on one side of the frame, and the output end of the rotating motor is fixedly connected to the drive roller. A transmission structure is provided between the drive roller and the transmission roller.

[0009] Preferably, the transmission structure includes a synchronous pulley and a synchronous belt. The synchronous pulleys are fixed to the outer walls of the drive roller and the transmission roller, respectively, and the two sets of synchronous pulleys are connected by a synchronous belt.

[0010] Preferably, the conveying structure further includes guide rods for guiding the covering film, and two sets of guide rods are provided, with the two sets of guide rods respectively rotatably connected to both ends of the belt conveyor.

[0011] Preferably, the pressing structure includes mounting frames disposed on both sides of the belt conveyor and elastic pressure rollers installed in the mounting frames, and each set of elastic pressure rollers in the mounting frames is provided with several sets.

[0012] Preferably, the elastic pressure roller includes a pressure rod, a pressure wheel, and a wheel seat. The pressure wheel is rotatably connected inside the wheel seat, the pressure rod is fixed to the top of the wheel seat, the pressure rod passes through the mounting frame and is slidably connected to the mounting frame, a spring is sleeved on the outer wall of the pressure rod, and a limiting plate is fixed on the outer wall of the pressure rod to prevent the spring from falling out.

[0013] Preferably, the negative pressure structure includes a negative pressure cavity for connection to an external negative pressure drive, a negative pressure port is provided below the conveying path of the belt conveyor, the negative pressure port is connected to the negative pressure cavity, and the conveyor belt is hollowed out.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention involves setting a covering film above the belt conveyor and using a pressing structure and a negative pressure structure to adhere it to the surface of the aluminum particle conveying layer, thereby isolating the aluminum particles from direct contact with air, reducing the oxidation reaction of the aluminum particles during the conveying process, and inhibiting the formation of aluminum oxide film.

[0016] The covering film of this utility model is relatively stationary with the belt conveyor through the conveying structure, and can be covered from one end and opened from the other end. This allows the covering film to remain relatively stationary on the conveying path from the time the aluminum particles enter the conveyor until they are sent out from one end of the conveyor. At the same time, opening one end of the covering film does not affect the entry of aluminum particles into the conveyor, nor does it affect the unloading of aluminum particles from the conveyor. This can achieve dynamic anti-oxidation on the conveying path. Attached Figure Description

[0017] Figure 1 This is an isometric drawing of this utility model;

[0018] Figure 2 This is a schematic diagram of the pressing edge structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the negative pressure structure of this utility model;

[0020] Figure 4 This is a schematic diagram showing the position of the covering film relative to the conveying structure and the belt conveyor of this utility model.

[0021] In the diagram: 1. Belt conveyor; 2. Covering film; 3. Conveying structure; 4. Edge pressing structure; 5. Negative pressure structure; 6. Conveyor belt;

[0022] 301. Frame; 302. Drive roller; 303. Transmission roller; 304. Rotary motor; 305. Synchronous pulley; 306. Synchronous belt; 307. Guide rod;

[0023] 401. Mounting bracket; 402. Elastic pressure roller;

[0024] 4021, Pressure bar; 4022, Pressure roller; 4023, Wheel seat; 4024, Spring; 4025, Limiting plate;

[0025] 501, Negative pressure chamber; 502, Negative pressure port. Detailed Implementation

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

[0027] Please see Figure 1-4 This utility model provides a technical solution: an aluminum particle anti-oxidation feeding structure, including a belt conveyor 1 for conveying aluminum particles, and an anti-oxidation structure that can cover the aluminum particles on the conveyor belt 6 to reduce oxidation is provided above the belt conveyor 1.

[0028] The anti-oxidation structure includes a cover film 2, a conveyor belt 6, and a conveying structure 3 that drives the cover film 2 and aluminum particles to be conveyed synchronously. The cover film 2 is an aluminized composite film with PET or BOPP as the base material, which has good air barrier properties and mechanical strength. The belt conveyor 1 has pressing structures 4 installed on both sides that can press the cover film 2 onto the upper surface of the conveyor belt 6. The conveyor belt 6 has a negative pressure structure 5 below it that can suck the cover film 2 onto the upper surface of the conveyor belt 6.

[0029] The device lays a covering film 2 above the belt conveyor 1. The covering film 2 is driven by the conveying structure 3 so that its movement speed is synchronized with the belt conveyor 1. That is, the aluminum particles are relatively stationary on the conveyor belt 6. On the conveying path, the pressing structure 4 presses the edge of the covering film 2 tightly to the surface of the conveyor belt 6 from both sides of the belt. The negative pressure structure 5 generates suction from below through the hollow conveyor belt 6, which firmly adsorbs and adheres the middle part of the covering film 2 to the aluminum particle layer and the surface of the conveyor belt 6.

[0030] From the moment the aluminum granules enter the conveyor (before the end covered by the covering film 2 is covered) to the moment they are conveyed to the discharge end (when the end covered by the covering film 2 is uncovered), the top and most of the sides of the granules are covered by the covering film 2, creating a low-oxygen environment. This reduces the contact area with air and the oxidation reaction, thus inhibiting the formation of an aluminum oxide film. The covering film 2 begins to cover the aluminum granules at the feeding end and is uncovered at the discharge end, achieving dynamic and continuous anti-oxidation during the conveying process without affecting normal feeding and unloading operations.

[0031] The conveying structure 3 includes a frame 301 and a drive roller 302 and a transmission roller 303 rotatably connected within the frame 301. A rotating motor 304 is installed on one side of the frame 301. The output end of the rotating motor 304 is fixedly connected to the drive roller 302. A transmission structure is provided between the drive roller 302 and the transmission roller 303.

[0032] After the rotating motor 304 is started, the drive roller 302 rotates, and through the synchronous pulley 305 and the synchronous belt 306, it drives the transmission roller 303 to rotate, so that the covering film 2 runs at a constant speed in cycles.

[0033] The transmission structure includes a synchronous pulley 305 and a synchronous belt 306. The synchronous pulley 305 is fixed to the outer wall of the drive roller 302 and the transmission roller 303 respectively. The two sets of synchronous pulleys 305 are connected by the synchronous belt 306.

[0034] The conveying structure 3 also includes guide rods 307 for guiding the covering film 2. Two sets of guide rods 307 are provided, and the two sets of guide rods 307 are rotatably connected to both ends of the belt conveyor 1. By setting the guide rods 307, the positions of the two sets of guide rods 307 are as follows: Figure 4 As shown in the figure, the arrow indicates the aluminum particle feeding position. The aluminum particles enter the covered area from below the guide rod 307 and are unloaded from the other end of the belt conveyor 1. The middle part is covered by the covering film 2 to prevent oxidation.

[0035] The pressing structure 4 includes mounting frames 401 disposed on both sides of the belt conveyor 1 and elastic pressure rollers 402 installed in the mounting frames 401. Several sets of elastic pressure rollers 402 are provided in each set of mounting frames 401. The elastic pressure rollers 402 are used to make the two sides of the cover film 2 adhere to the conveyor belt 6.

[0036] The elastic pressure roller 402 includes a pressure rod 4021, a pressure wheel 4022, and a wheel seat 4023. The pressure wheel 4022 is rotatably connected inside the wheel seat 4023. The pressure rod 4021 is fixed to the top of the wheel seat 4023. The pressure rod 4021 passes through the mounting frame 401 and is slidably connected to the mounting frame 401. A spring 4024 is sleeved on the outer wall of the pressure rod 4021. A limiting plate 4025 is fixed on the outer wall of the pressure rod 4021 to prevent the spring 4024 from falling out. The spring 4024 is compressed between the wheel seat 4023 and the limiting plate 4025, generating a downward elastic force. This elastic force is transmitted through the pressure rod 4021 to the wheel seat 4023 and the pressure wheel 4022, causing the pressure wheel 4022 to press against the edge of the cover film 2 and the surface of the conveyor belt 6.

[0037] The negative pressure structure 5 includes a negative pressure chamber 501 for connection to an external negative pressure drive. A negative pressure port 502 is provided below the conveying path of the belt conveyor 1, and the negative pressure port 502 communicates with the negative pressure chamber 501. The conveyor belt 6 is perforated. By setting the negative pressure structure 5, an adsorption force is generated below the area covered by the covering film 2, adhering the covering film 2 to the upper surface of the aluminum granule layer and the perforated conveyor belt 6.

[0038] like Figure 3 As shown, the negative pressure chamber 501 is a semi-sealed chamber installed below the frame 301 of the belt conveyor 1, located at the bottom of the carrying section of the conveyor belt 6. The negative pressure chamber 501 is connected to an external negative pressure source through a pipe, creating a negative pressure environment inside that is lower than atmospheric pressure. When the negative pressure source is working, air at the bottom of the cover film 2 is drawn into the negative pressure port 502 through the gaps between the aluminum particles and the conveyor belt 6, as well as the perforated conveyor belt 6, and enters the negative pressure chamber 501. The suction airflow creates a pressure difference between the top and bottom of the cover film 2, generating a suction force perpendicular to the cover film 2 and downwards. This suction force adsorbs and adheres the cover film 2 to the contour of the aluminum particles and the surface of the perforated conveyor belt 6, eliminating most of the gaps between the cover film 2, the aluminum particles, and the conveyor belt 6, reducing the contact area between the aluminum particles and the air.

[0039] In use, aluminum granules fall into the conveyor belt 6 at the feed end of the belt conveyor 1. The covering film 2 is driven by the conveying structure 3 and, guided by the guide rod 307, covers the aluminum granules on the surface of the conveyor belt 6 at the same speed as the conveyor belt 6.

[0040] Specifically, the rotating motor 304 starts, the drive roller 302 rotates, and the synchronous pulley 305 and synchronous belt 306 drive the transmission roller 303 to rotate, so that the covering film 2 is stationary relative to the conveyor belt 6;

[0041] Under the suction force generated by the negative pressure structure 5, the central area of ​​the covering film 2 is adsorbed and adhered to the aluminum particle layer and the surface of the conveyor belt 6, so that a low oxygen environment is formed between the covering film 2 and the conveyor belt 6, which improves the anti-oxidation effect of the aluminum particles. The negative pressure is achieved by connecting the negative pressure chamber 501 with an external negative pressure device, such as a vacuum pump.

[0042] The aluminum granules are conveyed under the dynamic covering protection of the covering film 2. When they reach the discharge end, the covering film 2 is gradually peeled off and lifted under the guidance of the guide rod 307, separating from the aluminum granule layer. The aluminum granules are discharged in an uncovered state.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aluminum granule anti-oxidation feeding structure, characterized in that: Includes a belt conveyor (1) for conveying aluminum granules, and an anti-oxidation structure is provided above the belt conveyor (1) to cover the aluminum granules on the conveyor belt (6) to reduce oxidation; The anti-oxidation structure includes a cover film (2), a conveyor belt (6), and a conveying structure (3) that drives the cover film (2) and aluminum particles to be conveyed synchronously. The belt conveyor (1) is equipped with a pressing structure (4) on both sides that can press the cover film (2) onto the upper surface of the conveyor belt (6). A negative pressure structure (5) is provided below the conveyor belt (6) that can suck the cover film (2) onto the upper surface of the conveyor belt (6).

2. The aluminum granule anti-oxidation feeding structure according to claim 1, characterized in that: The conveying structure (3) includes a frame (301) and a drive roller (302) and a transmission roller (303) rotatably connected within the frame (301). A rotating motor (304) is installed on one side of the frame (301). The output end of the rotating motor (304) is fixedly connected to the drive roller (302). A transmission structure is provided between the drive roller (302) and the transmission roller (303).

3. The aluminum granule anti-oxidation feeding structure according to claim 2, characterized in that: The transmission structure includes a synchronous pulley (305) and a synchronous belt (306). The synchronous pulley (305) is fixed on the outer wall of the drive roller (302) and the transmission roller (303), respectively. The two sets of synchronous pulleys (305) are connected by the synchronous belt (306).

4. The aluminum granule anti-oxidation feeding structure according to claim 3, characterized in that: The conveying structure (3) also includes guide rods (307) for guiding the covering film (2). Two sets of guide rods (307) are provided, and the two sets of guide rods (307) are rotatably connected to both ends of the belt conveyor (1).

5. The aluminum granule anti-oxidation feeding structure according to claim 4, characterized in that: The pressing structure (4) includes mounting frames (401) on both sides of the belt conveyor (1) and elastic pressure rollers (402) installed in the mounting frames (401). Each set of elastic pressure rollers (402) in the mounting frames (401) has several sets.

6. The aluminum granule anti-oxidation feeding structure according to claim 5, characterized in that: The elastic pressure roller (402) includes a pressure rod (4021), a pressure wheel (4022), and a wheel seat (4023). The pressure wheel (4022) is rotatably connected inside the wheel seat (4023). The pressure rod (4021) is fixed to the top of the wheel seat (4023). The pressure rod (4021) passes through the mounting frame (401) and is slidably connected to the mounting frame (401). A spring (4024) is sleeved on the outer wall of the pressure rod (4021). A limiting plate (4025) is fixed on the outer wall of the pressure rod (4021) to prevent the spring (4024) from falling out.

7. The aluminum granule anti-oxidation feeding structure according to claim 1, characterized in that: The negative pressure structure (5) includes a negative pressure chamber (501) for connection with an external negative pressure drive. A negative pressure port (502) is provided below the conveying path of the belt conveyor (1). The negative pressure port (502) is connected to the negative pressure chamber (501). The conveyor belt (6) is hollowed out.

Images