Funnel type automatic sampling device

Abstract

A funnel type automatic sampling device belongs to the field of packaging machinery and comprises a stock bin, a feed opening is formed in the middle of the upper end of the stock bin, a vertically arranged rotating shaft is arranged on the side of the feed opening, the lower portion of the rotating shaft is hinged to the upper end of the stock bin, the lower end of the rotating shaft is connected with the upper end of a material taking device vertically arranged in the stock bin, and a feed pipe is arranged at the lower end of the material taking device. A swing arm is arranged at the upper shaft end of the rotating shaft, a side arm of the swing arm is hinged to a cylinder rod of a swing air cylinder, a cylinder body of the swing air cylinder is hinged to an air cylinder support, the lower end of the air cylinder support is connected to the upper end of the stock bin, and the lower end of the stock bin is connected to the lower end of the rotating shaft. The swing air cylinder drives the swing arm to achieve horizontal rotation of the material taking device around the rotating shaft, and when the material taking device is located at the sampling working position, the material receiving opening of the material taking device rotates to the position under the discharging opening. The sampling device disclosed by the utility model is wide in applicable material packaging range and can ensure the detection accuracy of taken and conveyed samples.

Description

Technical Field

[0001] This utility model relates to a funnel-type automatic sampling device, belonging to the field of packaging machinery. Background Technology

[0002] Patent document CN219265782U discloses an automatic sampling device for a ton bag packaging machine. This sampling device is inclinedly installed on the outer wall of a buffer hopper. A linear motion cylinder within the device drives a return plate along a sampling tube into the hopper to begin sampling. The return of the linear motion cylinder causes the material to be carried back into the sampling tube by the return plate, and then conveyed into a sample bottle through a conveying pipe below the sampling tube. This sampling device is unsuitable for sticky materials or materials easily deformed by compression. During sampling, sticky material adheres to the sampling tube, obstructing the return plate's stroke and potentially causing jamming or damage to the cylinder. Furthermore, the return plate contacts the inner wall of the sampling tube during its return after sampling. If the material is easily deformed by compression, the accuracy and representativeness of the sample will be low. Additionally, this sampling device cannot meet the sampling needs of larger diameter materials, resulting in poor applicability. Utility Model Content

[0003] To address the limitation of existing sampling devices on packaging machines in terms of applicable packaging materials, this invention proposes a funnel-type automatic sampling device. It includes a hopper with a discharge port at the upper center. A vertically arranged rotating shaft is located to the side of the discharge port. The lower part of the rotating shaft is hinged to the upper end of the hopper. The lower end of the rotating shaft extends into the hopper and connects to the upper end of a vertically arranged funnel-type feeder. The lower end of the feeder has a discharge pipe inserted into an outer discharge pipe and sealed and hinged to its upper end. The outer discharge pipe is vertically installed... The lower outlet of the material discharge pipe is located outside the side wall of the hopper. The upper shaft end of the rotating shaft is equipped with a swing arm. One end of the swing arm is hinged to the cylinder rod of the swing cylinder. The cylinder body of the swing cylinder is hinged to the cylinder support. The lower end of the cylinder support is connected to the upper end of the hopper. The swing cylinder drives the swing arm to realize the horizontal rotation of the material taker around the rotating shaft. When the material taker is in the sampling working position, the material receiving port of the material taker rotates to the position directly below the discharge port. When the material taker is in the non-sampling working position, the material receiving port of the material taker rotates to the position away from the discharge port.

[0004] The funnel-shaped feeder has an inverted right-angled triangle structure. The upper end of the vertical side of the feeder is connected to the lower end of the rotating shaft, and the lower end of the vertical side of the feeder is connected to the feeding pipe.

[0005] The upper limit of the material level in the hopper is lower than the material receiving port of the feeder.

[0006] The beneficial effects of this utility model are:

[0007] A. The sampling device utilizes a swing cylinder to drive a swing arm, enabling the feeder to rotate horizontally around its axis to complete the sampling process. During sampling, the material is not compressed, ensuring that the sample quality is not affected. Furthermore, the lifespan of the swing cylinder is not affected by the adhesion of sticky materials. In addition, it can meet the sampling needs of large-diameter materials. This sampling device has a simple structure, is applicable to a wider range of packaging materials, and ultimately improves the accuracy of sample delivery and testing.

[0008] B. The feeder is designed with an inverted right-angled triangle structure, which avoids material bridging within the feeder during sampling and allows the feeder to be closer to the side wall of the silo when not in the sampling position, with its receiving port further away from the discharge port, thus improving the reliability of the sampling device. Attached Figure Description

[0009] Figure 1 This is a three-dimensional isometric view of this utility model.

[0010] Figure 2 This is a partial sectional view of the present invention.

[0011] Figure 3 This is a schematic diagram of the status of the feeder at the non-sampling workstation. Detailed Implementation

[0012] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the embodiments of this utility model are described in detail below with reference to the accompanying drawings. The embodiments are exemplary and intended to explain this utility model, but should not be construed as limiting this utility model.

[0013] See Figures 1-3 An automatic sampling device of the funnel type includes a hopper 1, with a discharge port 2 located at the upper center of the hopper 1. A vertically arranged rotating shaft 5 is located on the side of the discharge port 2. The lower part of the rotating shaft 5 is hinged to the upper end of the hopper 1. The lower end of the rotating shaft 5 extends into the hopper 1 and is connected to the upper end of a vertically arranged funnel-type feeder 3. The lower end of the feeder 3 is provided with a discharge pipe 9, which is inserted into a discharge outer pipe 8 and is sealed and hinged to the upper end of the discharge outer pipe 8. The discharge outer pipe 8 is vertically installed on the side wall of the hopper 1, and the lower end outlet of the discharge outer pipe 8 is located at... On the outside of the side wall, the upper end of the rotating shaft 5 is provided with a swing arm 4. One end of the swing arm 4 is hinged to the cylinder rod of the swing cylinder 7. The cylinder body of the swing cylinder 7 is hinged to the cylinder support 6. The lower end of the cylinder support 6 is connected to the upper end of the hopper 1. The swing cylinder 7 drives the swing arm 4 to realize the horizontal rotation of the feeder 3 around the rotating shaft 5. When the feeder 3 is in the sampling working position, the feeder 3's receiving port rotates to the position directly below the discharge port 2. When the feeder 3 is in the non-sampling working position, the feeder 3's receiving port rotates to the position away from the discharge port 2.

[0014] Preferably, the funnel-shaped feeder 3 has an inverted right-angled triangle structure, with the upper end of the vertical side of the feeder 3 connected to the lower end of the rotating shaft 5, and the lower end of the vertical side of the feeder 3 connected to the feeding pipe 9.

[0015] Furthermore, the upper limit of the material level in the hopper 1 is lower than the material receiving port of the feeder 3.

[0016] See Figures 1-3 The working principle of this embodiment is explained as follows:

[0017] When sampling is required during the operation of the packaging machine, the swing cylinder 7 drives the swing arm 4 to make the feeder 3 rotate horizontally around the rotating shaft 5 until the feeder 3's receiving port is located directly below the discharge port 2. The material enters the feeder 3 from the discharge port 2 and is then sent out through the discharge pipe 9 to the external sampling collector.

[0018] After sampling is completed, the swing cylinder 7 drives the swing arm 4, causing the feeder 3 to rotate horizontally around the rotating shaft 5 to the initial position and move away from the discharge port 2, thus entering the feeding and packaging process.

Claims

1. A funnel-type automatic sampling device, comprising a hopper (1), wherein a discharge port (2) is provided at the upper middle part of the hopper (1), characterized in that: A vertically arranged rotating shaft (5) is provided on the side of the discharge port (2). The lower part of the rotating shaft (5) is hinged to the upper end of the silo (1). The lower end of the rotating shaft (5) extends into the silo (1) and is connected to the upper end of a vertically arranged funnel-type feeder (3). The lower end of the feeder (3) is provided with a discharge pipe (9). The discharge pipe (9) is inserted into the discharge outer pipe (8) and is sealed and hinged to the upper end of the discharge outer pipe (8). The discharge outer pipe (8) is vertically installed on the side wall of the silo (1) and the lower end outlet of the discharge outer pipe (8) is located outside the side wall. The upper shaft end of the rotating shaft (5) is provided with a swing arm. The boom (4) and the swing arm (4) are hinged at one end to the cylinder rod of the swing cylinder (7). The cylinder body of the swing cylinder (7) is hinged on the cylinder support (6). The lower end of the cylinder support (6) is connected to the upper end of the hopper (1). The swing cylinder (7) drives the swing arm (4) to realize the horizontal rotation of the feeder (3) around the rotating shaft (5). When the feeder (3) is in the sampling working position, the feeder (3)'s receiving port rotates to the position directly below the discharge port (2). When the feeder (3) is in the non-sampling working position, the feeder (3)'s receiving port rotates to the position away from the discharge port (2).

2. The funnel-type automatic sampling device according to claim 1, characterized in that: The funnel-shaped feeder (3) has an inverted right-angled triangle structure. The upper end of the vertical side of the feeder (3) is connected to the lower end of the rotating shaft (5), and the lower end of the vertical side of the feeder (3) is connected to the feeding pipe (9).

3. The funnel-type automatic sampling device according to claim 1 or 2, characterized in that: The upper limit of the material level in the hopper (1) is lower than the material receiving port of the feeder (3).

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