Side-mounted air exhaust mechanism and spiral feeding cut-off device thereof

Abstract

The utility model provides a side-mounted air exhaust mechanism and a spiral feeding stop device thereof. The side-mounted air exhaust mechanism comprises an external mounting body, a mounting cavity, at least two layers of semicircular bodies and an air exhaust opening, the device comprises the side-mounted air exhaust mechanism, when air exhaust needs to be carried out, the air exhaust opening is connected with an external air exhaust pump, lateral air exhaust is carried out on the interior of the charging barrel, the internal pressure of the charging barrel is made to be uniform, excessive air exhaust is avoided, and materials in the charging barrel are made to run stably.

Description

TECHNICAL FIELD

[0001] The utility model relates to spiral feeding cutoff technical field especially relates to side mounted type air exhaust mechanism and its spiral feeding cutoff device. BACKGROUND

[0002] At present, the known electronic metering device (such as quantitative packaging scale, electronic batching scale) is composed of feeding mechanism, weighing mechanism and unloading mechanism etc. The feeding mechanism of electronic metering device has multiple forms, and spiral feeder is one of the most commonly used. When the electronic scale works, the spiral feeder is started to deliver material to the weighing mechanism for weighing, when the required weight is reached, the spiral feeder stops working, and the weighing mechanism unloads the material, and the weighing is finished. Since the existing spiral feeding cutoff device is used to transport powder or feed, the end is air extracted, the air extraction pressure is uneven, and the over-extraction problem is easy to form. UTILITARIAN CONTENT

[0003] To solve the above technical problems, one of the technical solutions of the utility model is: side mounted type air exhaust mechanism, which is arranged in the middle part of the barrel 1, realizes air extraction inside the barrel 1, forms vacuum inside the barrel 1, and prevents over-extraction, and the mechanism comprises:

[0004] The external mounting body 2 is located on the outer surface of the barrel 1.

[0005] The mounting cavity 3 is inserted into the external mounting body 2.

[0006] The at least two layers of semicircular bodies 4 are located in the mounting cavity 3 and tightly fit with the opening of the barrel 1.

[0007] The air extraction port 5 is used to connect the air extraction pump of external equipment.

[0008] Wherein, the semicircular body 4 is uniformly provided with the air hole 6.

[0009] Further, the lower end of the mounting cavity 3 is provided with the end cover 7, and the air extraction port 5 is located on the end cover 7.

[0010] Further, when the semicircular body 4 is multilayer, the filter layer 8 is arranged between each layer of semicircular bodies 4.

[0011] Further, the mounting cavity 3, the end cover 7 and the external mounting body 2 are all installed through the fixed locking device.

[0012] Another technical solution of the utility model is: spiral feeding cutoff device, which comprises the above-mentioned side mounted type air exhaust mechanism.

[0013] The advantages and positive effects of the present invention are as follows: when air extraction is required, the air extraction port 5 is connected to an external air extraction pump to perform side air extraction in the barrel 1, thereby making the pressure of the barrel 1 uniform, avoiding over-extraction, and ensuring smooth transportation and metering of the material in the barrel 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the side-mounted exhaust mechanism;

[0015] Figure 2 It is a side view of the side-mounted exhaust mechanism;

[0016] Figure 3 It is a structural diagram of the spiral feeding cut-off device;

[0017] In the figure: 1. Barrel; 2. External mounting body; 3. Mounting cavity; 4. Semicircular body; 5. Air extraction port; 6. Air vent; 7. End cover; 8. Filter layer. DETAILED DESCRIPTION

[0018] In order to better understand the present invention, the present invention will be further described below in conjunction with specific embodiments and drawings.

[0019] Example 1

[0020] like Figures 1-2 As shown, a side-mounted exhaust mechanism is provided in the middle of the barrel 1 to exhaust air from the inside of the barrel 1, forming a vacuum inside the barrel 1 and preventing excessive exhaust. The mechanism includes:

[0021] An external mounting body 2, which is located on the outer surface of the barrel 1;

[0022] The mounting cavity 3 is inserted into the external mounting body 2;

[0023] At least two layers of semicircular bodies 4, which are located in the mounting cavity 3 and fit tightly with the opening of the barrel 1;

[0024] Air extraction port 5, used to connect an external air extraction pump;

[0025] The semicircular body 4 is evenly provided with ventilation holes 6 .

[0026] Furthermore, an end cover 7 is provided at the lower end of the installation cavity 3 , and the air extraction port 5 is located on the end cover 7 .

[0027] Furthermore, when the semicircular body 4 is multi-layered, a filter layer 8 is provided between each layer of the semicircular body 4 to prevent the powder in the barrel 1 from entering the mounting cavity 3 and blocking the air outlet 5.

[0028] Furthermore, the installation cavity 3, the end cover 7 and the external installation body 2 are all installed through a fixing and locking device.

[0029] Its working process: when the need for pumping, pumping port 5 and the external pumping pump connected to the barrel 1 inside for lateral pumping, the barrel 1 internal pressure uniform, avoid pumping, the barrel 1 material stable to achieve transport and metering.

[0030] Example 2

[0031] As shown in Figure 3 screw feeding stop device, the device includes the side-mounted pumping mechanism described in the above example 1.

[0032] The above embodiments of the present application are described in detail, but the content is only the preferred embodiment of the present application, can not be considered for limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application, should still belong to the scope of the present application.

Claims

1. A side mounted extraction mechanism characterised in that: The mechanism is arranged in the middle part of the barrel (1), and is used for pumping air in the barrel (1) to form a vacuum in the barrel (1) and prevent excessive pumping, and the mechanism comprises: An external mounting body (2) is arranged on the outer surface of the barrel (1); A mounting cavity (3) is inserted into the external mounting body (2); At least two layers of semicircular bodies (4) are arranged in the mounting cavity (3) and tightly fit the opening of the barrel (1); An air pumping port (5) is used for connecting an external air pumping pump; The semicircular bodies (4) are uniformly provided with air holes (6).

2. A side-mounted extraction mechanism according to claim 1, wherein: The lower end of the mounting cavity (3) is provided with an end cover (7), and the air pumping port (5) is arranged on the end cover (7).

3. A side-mounted extraction mechanism according to claim 2, wherein: When the semicircular bodies (4) are multi-layered, a filter layer (8) is arranged between each layer of semicircular bodies (4).

4. A side-mounted extraction mechanism according to claim 3, wherein: The mounting cavity (3), the end cover (7) and the external mounting body (2) are all mounted through a fixed locking device.

5. A screw feed cutoff device characterized by: The device comprises the side-mounted air pumping mechanism of any one of claims 1-4.

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