Scraping device of belt feeder

Abstract

The utility model discloses a scraping device of a belt feeder, which comprises a scraping support part fixed on a frame of the belt feeder, and a balance rod rotatably mounted on the scraping support part. The balance weight rod is connected to the upper end of the balance rod, the balance weight block is hung on the balance weight rod, and the scraper is installed at the lower end of the balance rod. The balancing weight exerts pressure on the scraping piece through the lever effect of the balancing rod, so that the scraping piece is tightly attached to a belt of the belt feeder, and materials attached to the belt are scraped and guided to the discharging hopper. A feeding hopper is arranged above the belt feeder and used for feeding. The problem that in the prior art, weighing errors are generated due to the fact that materials adhere during discharging of a belt feeder is solved. The material weighing device has the characteristics that the adhered materials can be effectively scraped, so that the better material weighing precision is obtained.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and in particular to a scraping device for a belt feeder. Background Technology

[0002] Solid raw materials are commonly used in manufacturing. When solid raw materials contain a certain amount of moisture, these water molecules may form bridges between material particles, connecting them together through intermolecular forces, thus increasing the material's viscosity. This can have a series of impacts on material handling, transportation, storage, and processing. With increased viscosity, when using belt conveyors for material transfer or precise feeding via feeders, the material will stick to the conveyor, leading to material waste and increased power consumption. Material sticking to the feeder can also cause metering abnormalities, resulting in feed fluctuations and production disruptions.

[0003] When the viscosity of the material increases, it may stick to the belt feeder during precise feeding, causing abnormal metering. Figure 1 As shown, material is fed from the hopper onto the belt of a belt feeder. After passing a weighing sensor, the material enters the hopper. The belt feeder controller collects data from the weighing sensor and combines it with the speed signal from the speed sensor to calculate the instantaneous flow rate of the material. If material adheres to the belt feeder and does not enter the hopper, this portion of material is repeatedly metered, resulting in an inflated instantaneous flow rate and causing production abnormalities. Therefore, a scraping device for the belt feeder needs to be designed to solve the above technical problem. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a scraping device for a belt feeder, which aims to solve the problem of material adhesion during feeding in the existing belt feeder, which causes weighing errors; it has the feature of effectively scraping off the adhered material, thereby obtaining better material weighing accuracy.

[0005] To achieve the above-mentioned technical effects, the technical solution adopted by this utility model is as follows:

[0006] A scraping device for a belt feeder includes a scraping support fixed to the frame of the belt feeder, a balance bar rotatably mounted on the scraping support, a counterweight bar connected to the upper end of the balance bar, a counterweight block suspended on the counterweight bar, and a scraper blade mounted on the lower end of the balance bar. The counterweight block applies pressure to the scraper blade through the lever action of the balance bar, causing the scraper blade to adhere tightly to the belt of the belt feeder, scraping off the material adhering to the belt and guiding it to the discharge hopper. A feed hopper is provided above the belt feeder for feeding material.

[0007] Preferably, the scraper support is fixed to the side wall or crossbeam of the belt feeder frame by bolts or welding, and its installation position is perpendicularly aligned with the running track of the belt.

[0008] Preferably, the balance bar and the scraper support are connected by a pin and are provided with a rolling bearing or a lubrication structure to ensure the flexible rotation of the balance bar.

[0009] Preferably, the weight of the counterweight is adjustable, and the counterweight rod is provided with scale markings or slots for precisely adjusting the suspension position of the counterweight.

[0010] Preferably, the scraper is made of wear-resistant rubber material, and its end that contacts the belt has a wedge-shaped or arc-shaped structure to adapt to the curvature of the belt surface.

[0011] Preferably, the material of the scraper support is carbon steel or alloy steel, and its cross-section is an I-shaped or box-shaped structure.

[0012] Preferably, a weighing sensor is installed under the belt of the belt feeder, and a speed sensor is installed on the pulley at one end of the belt feeder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The scraping device of this belt feeder adds scraping support, balance bar, counterweight bar, counterweight block and scraper blade to the conventional belt feeder. It solves the problem of incomplete feeding when the belt feeder is conveying sticky materials, which sticks to the belt. It ensures the accuracy of metering and avoids random material falling off the belt. Randomly falling material will also pollute the ground and reduce the labor intensity of workers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the prior art structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the improved structure of this utility model;

[0017] Figure 3 Top view of this utility model after adding the scraping device of the belt feeder;

[0018] In the diagram: 1. Feed hopper, 2. Belt feeder, 3. Discharge hopper, 4. Weighing sensor, 5. Speed ​​sensor, 6. Scraper support, 7. Balance bar, 8. Counterweight bar, 9. Counterweight block, 10. Scraper blade. Detailed Implementation

[0019] Example 1:

[0020] like Figure 2 and Figure 3As shown, a scraping device for a belt feeder includes a scraping support 6 fixed to the frame of the belt feeder 2, a balance bar 7 rotatably mounted on the scraping support 6, a counterweight bar 8 connected to the upper end of the balance bar 7, a counterweight block 9 suspended on the counterweight bar 8, and a scraper blade 10 mounted on the lower end of the balance bar 7. The counterweight block 9 applies pressure to the scraper blade 10 through the lever action of the balance bar 7, causing the scraper blade 10 to adhere tightly to the belt of the belt feeder 2, scraping off the material adhering to the belt and guiding it to the discharge hopper 3. A feed hopper 1 is provided above the belt feeder 2 for feeding.

[0021] Preferably, the scraper support 6 is fixed to the side wall or crossbeam of the belt feeder frame by bolts or welding, and its installation position is perpendicularly aligned with the running track of the belt.

[0022] Preferably, the balance bar 7 is connected to the scraper support 6 by a pin and is provided with a rolling bearing or lubrication structure to ensure the flexible rotation of the balance bar 7.

[0023] Preferably, the weight of the counterweight 9 is adjustable, and the counterweight rod 8 is provided with scale markings or slots for precisely adjusting the suspension position of the counterweight 9.

[0024] Preferably, the scraper 10 is made of wear-resistant rubber material, and its end that contacts the belt has a wedge-shaped or arc-shaped structure to adapt to the curvature of the belt surface.

[0025] Preferably, the scraper support 6 is made of carbon steel or alloy steel, and its cross-section is an I-shaped or box-shaped structure.

[0026] Preferably, a weighing sensor 4 is installed under the belt of the belt feeder 2, and a speed sensor 5 is installed on the pulley at one end of the belt feeder 2.

[0027] Example 2:

[0028] The working principle of this patent is as follows:

[0029] In use, the material is fed from the feed hopper 1 onto the belt of the belt feeder 2. After passing through the weighing sensor 4, the material enters the discharge hopper 3. The weight of the counterweight 9, through the lever action of the balance bar 7, causes the scraper 10 to press against the belt feeder belt with a certain pressure. When the material sticks to the belt feeder and does not enter the discharge hopper 3, the scraper 10 scrapes the material sticking to the belt feeder and it falls into the discharge hopper 3, ensuring that all the weighed material enters the discharge hopper and ensuring the accuracy of the measurement.

Claims

1. A scraping device for a belt feeder, characterized in that, Includes a scraper support (6) fixed to the frame of the belt feeder (2), a balance bar (7) rotatably mounted on the scraper support (6); a counterweight bar (8) connected to the upper end of the balance bar (7), a counterweight block (9) suspended on the counterweight bar (8), and a scraper (10) mounted on the lower end of the balance bar (7); the counterweight block (9) applies pressure to the scraper (10) through the lever action of the balance bar (7), so that the scraper (10) is in close contact with the belt of the belt feeder (2), and scrapes off the material adhering to the belt and guides it to the discharge hopper (3); a feed hopper (1) is provided above the belt feeder (2) for feeding.

2. The scraping device for a belt feeder according to claim 1, characterized in that, The scraper support (6) is fixed to the side wall or crossbeam of the belt feeder frame by bolts or welding, and its installation position is perpendicularly aligned with the running track of the belt.

3. The scraping device for a belt feeder according to claim 1, characterized in that, The balance bar (7) is connected to the scraper support (6) by a pin and is provided with a rolling bearing or a lubrication structure.

4. The scraping device for a belt feeder according to claim 1, characterized in that, The weight of the counterweight (9) is adjustable, and the counterweight rod (8) is provided with scale markings or slots.

5. The scraping device for a belt feeder according to claim 1, characterized in that, The scraper (10) is made of wear-resistant rubber material, and its end in contact with the belt has a wedge-shaped or arc-shaped structure.

6. The scraping device for a belt feeder according to claim 1, characterized in that, The material of the scraper support (6) is carbon steel or alloy steel, and its cross-section is I-shaped or box-shaped.

7. The scraping device for a belt feeder according to claim 1, characterized in that, A weighing sensor (4) is installed under the belt of the belt feeder (2), and a speed sensor (5) is installed on the pulley at one end of the belt feeder (2).

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