Internal supporting type bag clamping device for bagging high-purity vanadium powder

Abstract

The utility model provides an inner supporting type bag clamping device for bagging high-purity vanadium powder, and belongs to the technical field of high-purity vanadium packaging. Comprising a hopper, a discharging pipe fixed to the lower portion of the hopper, an air cylinder fixed to the hopper, a linkage frame fixed to an air cylinder push rod and at least two inner supporting assemblies located below the hopper, and each inner supporting assembly comprises a guide rod vertically fixed to the hopper and two swing arms with the middles hinged to each other; wherein the inner end of one swing arm is hinged to the lower end of the guide rod, the inner end of the other swing arm is hinged to a sliding block, the sliding blocks are connected to the guide rod in a sliding mode, all the sliding blocks are fixedly connected with the linkage frame, and an arc-shaped supporting strip is fixedly arranged at the outer end of each swing arm. The device has the advantages of simple structure, convenience in operation and the like.

Description

Technical Field

[0001] This utility model belongs to the field of high-purity vanadium packaging technology, and relates to an internal support bag clamping device for bagging high-purity vanadium powder. Background Technology

[0002] High-purity vanadium is packaged, stored, or sold as finished products in powder or flake form. When packaging powder products, the bagging machine uses multiple clamping structures to hold the bag opening. This places high demands on the shape of the bag opening. Generally, the bag opening needs to be shaped (e.g., positioned by suction cups) before it can be effectively clamped. This method is complex and can easily damage the bag (due to multiple small clamping positions). Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by providing an internal support bag clamping device for packaging high-purity vanadium powder. The technical problem this invention aims to solve is how to simplify the structure and avoid damage to the packaging bag.

[0004] The purpose of this utility model can be achieved through the following technical solution: an internal support bag clamping device for bagging high-purity vanadium powder, characterized in that it includes a hopper, a discharge pipe fixed below the hopper, a cylinder fixed on the hopper, a linkage frame fixed on the cylinder push rod, and at least two internal support assemblies located below the hopper. The internal support assembly includes a guide rod vertically fixed on the hopper and two swing arms that are hinged to each other in the middle. The inner end of one swing arm is hinged to the lower end of the guide rod, and the inner end of the other swing arm is hinged to a slider. The slider is slidably connected to the guide rod. Each slider is fixedly connected to the linkage frame. An arc-shaped support bar is fixedly provided at the outer end of the swing arm.

[0005] Furthermore, a tube is slidably connected longitudinally to the lower end of the discharge pipe, the tube communicates with the discharge pipe, and the tube is fixed on the linkage frame.

[0006] The two swing arms on the same inner support assembly are of the same specification, forming two support positioning points on the inner wall of the packaging bag. They contact the inner wall of the packaging bag through the arc-shaped support strip, resulting in a large contact area and a certain spacing between the support positions, which improves the positioning reliability of the packaging bag. Compared with multi-point clamping, it causes less damage to the bag. Since a support needs to be set at the bottom for weighing during packaging, the external force required for the inner support is not high. However, in comparison, the outer contour is smaller when each swing arm is retracted. When there are two inner support assemblies, the whole is flat, which reduces the requirements for the opening size and shape of the packaging bag, making it easier to put the bag on and clamp it. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the bag clamping device in the unfolded state of each swing arm.

[0008] Figure 2 This is a schematic diagram of the bag clamping device in the retracted state of each swing arm.

[0009] Figure 3 This is a schematic diagram of the structure of two swing arms in the same internal support assembly.

[0010] In the diagram, 1 is the hopper; 2 is the discharge pipe; 3 is the cylinder; 4 is the guide rod; 5 is the swing arm; 6 is the slider; 7 is the support bar; and 8 is the insertion tube. Detailed Implementation

[0011] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0012] like Figure 1 , Figure 2 and Figure 3 As shown, the bag clamping device includes a hopper 1, a discharge pipe 2 fixed below the hopper 1, a cylinder 3 fixed on the hopper 1, a linkage frame fixed on the push rod of the cylinder 3, and at least two inner support assemblies located below the hopper 1. The inner support assembly includes a guide rod 4 vertically fixed on the hopper 1 and two swing arms 5 that are hinged to each other in the middle. The inner end of one swing arm 5 is hinged to the lower end of the guide rod 4, and the inner end of the other swing arm 5 is hinged to a slider 6. The slider 6 is slidably connected to the guide rod 4. Each slider 6 is fixedly connected to the linkage frame. An arc-shaped support bar 7 is fixedly provided at the outer end of the swing arm 5. An insertion tube 8 is slidably connected longitudinally to the lower end of the discharge pipe 2. The insertion tube 8 communicates with the discharge pipe 2 and is fixed on the linkage frame.

[0013] The two swing arms 5 on the same inner support assembly are of the same specification, forming two support positioning points on the inner wall of the packaging bag. They contact the inner wall of the packaging bag through the arc-shaped support bar 7, resulting in a large contact area and a certain spacing between the support positions, which improves the positioning reliability of the packaging bag. Compared with multi-point clamping, it causes less damage to the bag. Since a support needs to be set at the bottom for weighing during packaging, the external force required for the inner support is not high. However, in comparison, the outer contour is smaller when each swing arm 5 is retracted. When there are two inner support assemblies, the whole is flat, which reduces the requirements for the opening size and shape of the packaging bag, making it easier to put the bag on and clamp it. A valve can be set on the insertion tube 8, and the insertion rod can be extended and retracted longitudinally. Before putting the bag on, the insertion tube 8 is retracted, and after putting the bag on, the insertion tube 8 is moved downward, which is suitable for the material discharge position before and after putting the bag on.

[0014] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An internal support bag clamping device for packaging high-purity vanadium powder, characterized in that, It includes a hopper (1), a discharge pipe (2) fixed below the hopper (1), a cylinder (3) fixed on the hopper (1), a linkage frame fixed on the push rod of the cylinder (3), and at least two inner support assemblies located below the hopper (1). The inner support assembly includes a guide rod (4) vertically fixed on the hopper (1) and two swing arms (5) hinged to each other in the middle. The inner end of one swing arm (5) is hinged to the lower end of the guide rod (4), and the inner end of the other swing arm (5) is hinged to a slider (6). The slider (6) is slidably connected to the guide rod (4). Each slider (6) is fixedly connected to the linkage frame. An arc-shaped support bar (7) is fixedly provided on the outer end of the swing arm (5).

2. The bagging apparatus of claim 1, wherein the bagging apparatus further comprises a bag holder. The lower end of the discharge pipe (2) is longitudinally slidably connected to an insertion tube (8), which communicates with the discharge pipe (2) and is fixed on the linkage frame.

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