Continuous stable unloading vacuum hopper

Abstract

This utility model discloses a vacuum hopper for continuous and stable material feeding, belonging to the field of loading and unloading conveying equipment. The hopper includes: an auxiliary discharge unit at the discharge port at the lower end of the main body shell; the auxiliary discharge unit includes: a fixed frame disposed outside the discharge port; a rotating end of a movable frame rotatably connected to the fixed frame; a discharge plate disposed at the free end of the movable frame, which can cover the discharge port; a counterweight is disposed outside the rotating end of the movable frame, with the counterweight and discharge plate located on opposite sides of the rotating end. The counterweight acts to cover the discharge port. The automatic closing of the discharge plate is achieved by the counterweight, and combined with the negative pressure of the vacuum pump, the discharge plate remains closed. When the suction ends, the negative pressure disappears, the material presses down on the discharge plate and opens the discharge port, realizing material conveying. After conveying, the system automatically recovers, covering the discharge port, and suction begins again, repeating this process. This ensures continuous processing in the factory.

Description

Technical Field

[0001] This utility model relates to the field of material loading and unloading conveying equipment in factories, and in particular to a vacuum hopper for continuous and stable material feeding. Background Technology

[0002] In factory processing and production, hoppers are needed to transport materials. However, the bottom of the hopper is usually sealed. The materials are transported in different ways. For example, materials are sucked up in batches, one batch is sucked up, another batch is released, and then the next batch is sucked up, and so on in a continuous cycle.

[0003] During the material feeding process, the hopper needs to be sealed to ensure proper material intake. It also needs to be opened during discharge. This requires the bottom shield to be constantly opened and closed. Over time, this can lead to various problems, even preventing the hopper from closing completely and causing subsequent material feeding failures.

[0004] Moreover, the hoppers currently available on the market also have the problem of being difficult to maintain later. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a vacuum hopper for continuous and stable material feeding.

[0006] The technical solution of this utility model is: a vacuum hopper for continuous and stable feeding, comprising:

[0007] The main body shell has a discharge port at its lower end, and an auxiliary discharge unit is provided at the discharge port. The auxiliary discharge unit includes:

[0008] The fixing frame is fixedly installed on the outside of the discharge port;

[0009] A movable frame, wherein the rotating end of the movable frame is rotatably connected to the fixed frame;

[0010] A discharge plate is provided at the free end of the movable frame and can cover the discharge port.

[0011] A counterweight is also provided on the outside of the rotating end of the movable frame. The counterweight and the discharge plate are located on the two sides of the rotating end, and the discharge plate covers the discharge port under the action of the counterweight.

[0012] Furthermore, the movable frame includes:

[0013] A first mounting plate, having a rotating hole on it, is rotatably connected to a fixing frame through the rotating hole; and

[0014] The second mounting plate is fixedly connected to the first mounting plate, and extends downwards to be located below the discharge port. This ensures the smooth operation of the movable frame.

[0015] Furthermore, the free end of the movable frame is equipped with a discharge plate via a buffer assembly. This buffer assembly includes a buffer shaft located at the free end of the movable frame; the discharge plate is sleeved on the buffer shaft; and a buffer element is also provided between the discharge plate and the movable frame, supporting the discharge plate. This buffer assembly ensures a certain degree of cushioning when the discharge plate contacts the discharge port, guaranteeing a sealing effect on the discharge port.

[0016] Furthermore, the discharge plate is slightly larger than the discharge port to ensure a stable seal.

[0017] Furthermore, a limiting plate is provided, which is mounted on the movable frame. When the discharge plate is open, the discharge plate contacts the limiting plate. This prevents the discharge plate from shaking due to impact during discharge, further stabilizing the discharge plate.

[0018] Furthermore, the buffer element is sleeved on the buffer shaft. This sleeved installation provides stable support.

[0019] Furthermore, the buffer component includes either a buffer spring or a flexible buffer pad. Generally, a buffer spring is sufficient, as it is low-cost and easy to replace later.

[0020] Furthermore, at least one counterweight is provided, and the counterweight is detachably mounted on the movable frame by bolts. This detachable design allows users to easily select different counterweights based on the characteristics of different products. Different numbers of counterweights can also be selected.

[0021] Furthermore, the lower end of the outer shell is funnel-shaped and gradually tapers inward from top to bottom. This ensures that the raw materials inside the hopper can flow out smoothly from the outlet.

[0022] Furthermore, the lower end of the discharge port is inclined, and a fixed frame and a movable frame are installed at the upper part of the discharge port. This ensures smooth material discharge during the gradual tapping process after obstruction.

[0023] Furthermore, the upper part of the outer shell is open, and a vacuum machine is installed at the open end. A suction pipe is connected to the outside of the outer shell, enabling automatic material suction.

[0024] Furthermore, a protective mounting cover is provided at the lower end of the main body shell, which is located outside the discharge port. This protects the stable operation of the auxiliary discharge unit.

[0025] Furthermore, an inspection port is provided on the protective mounting cover, and a mesh cover is provided for the inspection port.

[0026] The beneficial technical effects of this invention are as follows: By setting a counterweight, the discharge plate automatically closes. During vacuum suction, the negative pressure keeps the discharge plate closed. When suction ends, the negative pressure disappears, the material presses down on the discharge plate and opens the discharge port, thus achieving material conveying. After conveying, the plate automatically recovers, blocking the discharge port, and suction resumes, repeating this process. This ensures continuous processing in the factory. Attached Figure Description

[0027] Figure 1 This is an overall schematic diagram of a vacuum hopper that continuously and stably feeds materials.

[0028] Figure 2 This is a schematic diagram of a hopper.

[0029] Figure 3 This is a cross-sectional schematic diagram of the auxiliary discharge unit.

[0030] Figure 4 This is a schematic diagram of the discharge section.

[0031] Figure 5 This is another schematic diagram of the discharge section.

[0032] Figure 6 This is a schematic diagram of the limit plate's operation.

[0033] in:

[0034] 1. Body shell,

[0035] 2. Discharge port,

[0036] 3. Fixture,

[0037] 4. Movable frame; 41. First mounting plate; 42. Second mounting plate; 43. Limiting plate.

[0038] 5. Discharge plate,

[0039] 6. Counterweight

[0040] 7. Buffer assembly; 71. Buffer shaft; 72. Buffer component; 8. Protective mounting cover. Detailed Implementation

[0041] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0042] See appendix Figure 1-6The continuously and stably feeding vacuum hopper shown includes:

[0043] The main body shell 1 has a discharge port 2 at its lower end, and an auxiliary discharge unit is provided at the discharge port 2. The auxiliary discharge unit includes:

[0044] Fixing frame 3 is fixedly installed on the outside of the discharge port 2;

[0045] Movable frame 4, the rotating end of movable frame 4 is rotatably connected to fixed frame 3;

[0046] The discharge plate 5 is located at the free end of the movable frame 4 and can cover the discharge port 2.

[0047] A counterweight 6 is also provided on the outside of the rotating end of the movable frame 4. The counterweight 6 and the discharge plate 5 are located on the two sides of the rotating end, and the discharge plate 5 covers the discharge port 2 under the action of the counterweight 6.

[0048] Furthermore, the movable frame 4 includes: a first mounting plate 41, which has a rotating hole and is rotatably connected to the fixed frame 3 through the rotating hole; and a second mounting plate 42, which is fixedly connected to the first mounting plate 41 and extends downward and is located below the discharge port 2. This ensures the smooth operation of the movable frame 4.

[0049] Furthermore, the free end of the movable frame 4 is equipped with a discharge plate 5 via a buffer assembly 7. The buffer assembly 7 includes a buffer shaft 71, which is located at the free end of the movable frame 4; the discharge plate 5 is sleeved on the buffer shaft 71; and a buffer element 72 is also provided between the discharge plate 5 and the movable frame 4, supporting the discharge plate 5. This buffer assembly 7 ensures a certain degree of cushioning when the discharge plate 5 contacts the discharge port 2, guaranteeing a sealing effect on the discharge port 2.

[0050] Furthermore, the discharge plate 5 is slightly larger than the discharge port 2 to ensure a stable seal.

[0051] Furthermore, a limiting plate 43 is provided, which is mounted on the movable frame 4. When the discharge plate 5 is open, the discharge plate 5 contacts the limiting plate 43. This prevents the discharge plate 5 from shaking due to impact during discharge, and further stabilizes the discharge plate 5.

[0052] Furthermore, the buffer element 72 is fitted onto the buffer shaft 71. This fitted installation provides stable support.

[0053] Furthermore, the buffer 72 includes either a buffer spring or a buffer flexible pad. Generally, a buffer spring is sufficient, as it is lower in cost and easier to replace later.

[0054] Furthermore, at least one counterweight 6 is provided, and the counterweight 6 is detachably mounted on the movable frame 4 by bolts. This detachable configuration allows users to easily select different counterweights according to different product characteristics. Different numbers of counterweights can also be selected.

[0055] Furthermore, the lower end of the outer shell 1 is funnel-shaped and gradually tapers inward from top to bottom. This ensures that the raw materials inside the hopper can flow out smoothly from the outlet.

[0056] Furthermore, the lower end of the discharge port 2 is inclined, and a fixed frame 3 and a movable frame 4 are installed at the upper part of the discharge port 2. This ensures smooth material discharge during the gradual tapping process after obstruction.

[0057] Furthermore, the upper part of the outer shell 1 is open, and a vacuum machine is installed at the open end. A suction pipe is connected to the outside of the outer shell 1, which enables automatic material suction.

[0058] Furthermore, a protective mounting cover 8 is provided at the lower end of the main body shell 1, which is located outside the discharge port 2. This protects the stable operation of the auxiliary discharge unit.

[0059] Furthermore, an inspection port is provided on the protective mounting cover, and a mesh cover is provided for the inspection port.

[0060] The automatic closing of the discharge plate 5 is achieved by setting a counterweight. During vacuum suction, the negative pressure keeps the discharge plate 5 closed. When suction ends, the negative pressure disappears, the material presses down on the discharge plate 5 and opens the discharge port 2, thus conveying the material. After conveying, it automatically recovers, blocking the discharge port 2, and suction begins again, repeating this process. This ensures continuous processing in the factory.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A vacuum hopper for continuous and stable material feeding, characterized in that, include: The main body shell (1) has a discharge port (2) at its lower end, and an auxiliary discharge unit is provided at the discharge port (2). The auxiliary discharge unit includes: A fixing frame (3) is fixedly installed on the outside of the discharge port (2); The movable frame (4) is rotatably connected to the fixed frame (3) at its rotating end; The discharge plate (5) is located at the free end of the movable frame (4) and can cover the discharge port (2). A counterweight (6) is also provided on the outside of the rotating end of the movable frame (4). The counterweight (6) and the discharge plate (5) are located on both sides of the rotating end, and the discharge plate (5) covers the discharge port (2) under the action of the counterweight (6).

2. The vacuum hopper for continuous and stable feeding according to claim 1, characterized in that: The movable frame (4) includes: The first mounting plate (41) has a rotating hole, through which it is rotatably connected to the fixing frame (3); and The second mounting piece (42) is fixedly connected to the first mounting piece (41), and the second mounting piece (42) extends downward and is located below the discharge port (2).

3. The vacuum hopper for continuous and stable feeding according to claim 1, characterized in that: The free end of the movable frame (4) is provided with a discharge plate (5) through a buffer assembly (7). The buffer assembly (7) includes: a buffer shaft (71) which is provided at the free end of the movable frame (4); the discharge plate (5) is sleeved on the buffer shaft (71), and a buffer member (72) is provided between the discharge plate (5) and the movable frame (4), and the buffer member (72) supports the discharge plate (5).

4. The vacuum hopper for continuous and stable feeding according to claim 1, characterized in that: A limiting plate (43) is also provided. The limiting plate (43) is set on the movable frame (4), and when the discharge plate (5) is open, the discharge plate (5) contacts the limiting plate (43).

5. The vacuum hopper for continuous and stable feeding according to claim 3, characterized in that: The buffer element (72) is fitted onto the buffer shaft (71).

6. The vacuum hopper for continuous and stable feeding according to claim 3, characterized in that: The buffer (72) includes either a buffer spring or a buffer flexible pad.

7. The vacuum hopper for continuous and stable feeding according to claim 1, characterized in that: At least one counterweight (6) is provided, and the counterweight (6) is detachably mounted on the movable frame (4) by bolts.

8. The vacuum hopper for continuous and stable feeding according to claim 1, characterized in that: The lower end of the outer shell (1) is funnel-shaped and gradually tapers inward from top to bottom.

9. The vacuum hopper for continuous and stable feeding according to claim 1, characterized in that: The lower end of the discharge port (2) is inclined, and a fixed frame (3) and a movable frame (4) are provided at the upper part of the discharge port (2).

10. The vacuum hopper for continuous and stable feeding according to claim 1, characterized in that: The upper part of the main body shell (1) is open, and a vacuum machine is installed at the open end. A suction pipe is connected to the outside of the main body shell (1).

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