A mixing fertilizer filling bag body clamping device

Abstract

This utility model discloses a clamping device for filling blended fertilizer bags, including two opposing first cylinders. An installation plate is fixed to the end of the output shaft of each first cylinder. Two sets of positioning rods are fixed to the two installation plates respectively. The device also includes a cover, with a discharge pipe fixed to the top of the cover. Adsorption components are installed at both ends of the cover near the two installation plates. An air-blowing component for blowing air into the bag opening is also installed on the cover. Compared to existing technologies, the air-blowing component of this utility model blows air into the bag, fully expanding the internal space to prevent the blended fertilizer from overflowing onto the ground due to insufficient internal space during filling, thus reducing pollution during blended fertilizer filling and the resulting ground pollution.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer filling technology, and in particular to a clamping device for filling bags of blended fertilizer. Background Technology

[0002] In the current field of compound fertilizer bag filling, traditional filling devices mostly use basic mechanical clamping structures to fix the bag body. For example, two clamping plates are driven by a cylinder to directly clamp the two sides of the bag body, and then the compound fertilizer is injected into the bag through the top feeding pipe. However, since the compound fertilizer bags are mostly made of flexible plastic or woven materials, the bag body is prone to collapse due to its own weight or the accumulation of folds without external force assistance, and the internal space cannot be naturally expanded.

[0003] While existing technologies use cylinders to suction the sides of the bag and open the top opening, when the blended fertilizer continuously enters the bag via the feed pipe, the insufficiently expanded bag can easily lead to localized narrowing or even blockage. This prevents the fertilizer from falling smoothly to the bottom of the bag (often due to insufficient initial fertilizer quantity and weight, which, even with some weight, cannot open the bag), causing it to overflow and spill onto the ground. This not only wastes blended fertilizer raw materials and increases production costs, but also requires additional personnel to clean up the residual fertilizer, increasing workshop maintenance workload and costs. Furthermore, the overflowing fertilizer dust pollutes the filling area, compromising hygiene and potentially posing a safety hazard due to slippery residue.

[0004] Therefore, there is an urgent need for a clamping device for the filling bag of blended fertilizer to solve the above problems. Utility Model Content

[0005] The main purpose of this utility model is to provide a clamping device for filling bags of blended fertilizer. The air blowing component blows air into the bag to fully expand the internal space, so as to avoid the blended fertilizer from overflowing and falling to the ground due to insufficient internal space of the bag during filling, thereby reducing pollution during the filling of blended fertilizer and the resulting ground pollution.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A fertilizer blending bag clamping device includes two opposing first cylinders, with mounting plates fixed to the output shaft ends of the first cylinders. Two sets of positioning rods are fixed to the two mounting plates respectively. The device also includes a cover, with a feeding pipe fixed to the top of the cover. Adsorption components are installed at both ends of the cover near the two mounting plates. An air blowing component for blowing air into the bag opening is also installed on the cover.

[0007] Furthermore, the air blowing assembly includes a blower and an air outlet pipe located inside the housing, one end of which is fixedly connected to the air outlet end of the blower via a pipe.

[0008] Furthermore, the adsorption assembly includes a second cylinder, two second cylinders are arranged opposite each other and a suction cup is fixed to the end of the output shaft of the second cylinder.

[0009] Furthermore, the second cylinder is fixedly connected to the cover, and the suction cup is lower than the height of the cover.

[0010] Furthermore, the second cylinder and the positioning rod are arranged in the same direction.

[0011] Furthermore, the bottom end of the feed pipe penetrates the cover.

[0012] Furthermore, tapered portions are fixed to the adjacent ends of the positioning rods on the two mounting plates.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The air blowing component of this invention blows air into the bag to fully expand the internal space, so as to prevent the mixed fertilizer from overflowing and falling to the ground during filling because the internal space of the bag is not fully opened, thereby reducing pollution during the filling of mixed fertilizer and the resulting ground pollution.

[0014] The positioning rod of this invention has a tapered end, which can reduce the bag clamping area. It works in conjunction with the suction cup of the adsorption component to adsorb the two sides of the bag and reset to open the top opening, ensuring that the bag opening can be opened smoothly.

[0015] The two sets of first cylinders of this utility model drive the mounting plate and positioning rod to move relative to each other, which can achieve stable clamping of the bag body, ensure the bag body is stable during subsequent adsorption, blowing, filling and other processes, and improve filling stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a fertilizer blending bag clamping device according to the present invention.

[0017] Figure 2 This is a schematic diagram of the adsorption component structure of a fertilizer blending bag clamping device according to the present invention.

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the cover of a fertilizer blending bag clamping device according to the present invention.

[0019] In the diagram: 1. Cover; 2. Feed pipe; 3. Adsorption assembly; 301. Second cylinder; 302. Suction cup; 4. First cylinder; 5. Mounting plate; 6. Positioning rod; 601. Conical part; 7. Pipe; 8. Blower; 9. Air outlet pipe. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] like Figure 1-3 As shown, a fertilizer blending bag clamping device includes two opposing first cylinders 4, with mounting plates 5 fixed to the output shaft ends of the first cylinders 4, and two sets of positioning rods 6 fixed on the two mounting plates 5 respectively. It also includes a cover 1, with a feeding pipe 2 fixed to the top of the cover 1, and adsorption components 3 installed on both ends of the cover 1 near the two mounting plates 5 respectively. An air blowing component for blowing air into the bag opening is also installed on the cover 1.

[0025] In this embodiment, the cylinder body of the first cylinder 4 is fixedly connected to the workshop filling bracket, so that the two mounting plates 5 are set opposite to each other, and the positioning rods 6 on the two mounting plates 5 correspond one to one. Therefore, when the two first cylinders 4 drive the two mounting plates 5 to approach each other, the two positioning rods 6 with matching positions clamp the bag body, and the conveying pipe of the mixed fertilizer is connected to the feeding pipe 2.

[0026] The discharge pipe 2 and the cover 1 are also fixed on the filling bracket in the workshop, and the position of the discharge pipe 2 is ensured to be centered on the two mounting plates 5.

[0027] Initially, the two mounting plates 5 are far apart. When the personnel place the bag between the two mounting plates 5, the personnel control the first cylinder 4 to work, so that the two mounting plates 5 are close together. Then, the matching positioning rods 6 clamp the two sides of the bag and fix the bag. Then, the two sets of adsorption components 3 can adsorb the two sides of the bag, thereby opening the top opening of the bag. Then, the air blowing component blows air into the bag through the opened opening, thereby fully opening the internal space of the bag, which facilitates the injection of blended fertilizer into the bag and avoids the blended fertilizer falling to the ground due to the internal space of the bag not being fully opened.

[0028] Specifically, the air blowing assembly includes a blower 8 and an air outlet pipe 9 located inside the cover 1. One end of the air outlet pipe 9 is fixedly connected to the air outlet end of the blower 8 through a pipe 7. When the blower 8 is working, it can blow air into the air outlet pipe 9 through the pipe 7, thereby allowing the gas to enter the bag and fully expand the bag by utilizing the high-speed flow of the gas.

[0029] like Figure 2 As shown, the adsorption assembly 3 includes a second cylinder 301. Two second cylinders 301 are arranged opposite each other, and a suction cup 302 is fixed to the end of the output shaft of the second cylinder 301. In the initial state, the second cylinder 301 is in the retracted state, and the suction cup 302 does not contact the bag. When the positioning rod 6 clamps the bag, the second cylinder 301 drives the suction cup 302 to move, so that the suction cup 302 contacts the bag. At this time, the vacuum device, such as the vacuum pump, draws away the gas in the suction cup 302, so that the suction cup 302 adsorbs the side part of the bag. Then the second cylinder 301 is reset, thereby opening the top opening of the bag through the suction cup 302. After the bag is filled, the air inlet valve on the suction cup 302 is opened, the vacuum pump stops working, and the suction cup 302 no longer adsorbs the bag.

[0030] The second cylinder 301 is fixedly connected to the cover 1, and the suction cup 302 is lower than the cover 1, so the suction cup 302 will not be obstructed by the cover 1 during the movement.

[0031] The second cylinder 301 and the positioning rod 6 are arranged in the same direction to ensure that the suction cup 302 can be adsorbed onto both sides of the bag.

[0032] Among them, such as Figure 3 As shown, the bottom end of the feeding pipe 2 penetrates through the cover 1, shortening the distance between the feeding port of the feeding pipe 2 and the top opening of the bag, ensuring that the blended fertilizer can enter the bag.

[0033] Among them, such as Figure 1As shown, the ends of the positioning rods 6 on the two mounting plates 5 that are close to each other are fixed with tapered portions 601. The small-diameter ends of the tapered portions 601 contact the bag body, thereby reducing the area of ​​the bag body that is pressed against and clamped, and ensuring that the bag body can open as much as possible.

[0034] Working principle: When the compound fertilizer bag filling device is working, initially, the two first cylinders 4 are in the retracted state, causing the two mounting plates 5 to move away from each other, and the two sets of positioning rods 6 to separate. In the adsorption component 3, the second cylinder 301 retracts, the suction cup 302 does not contact the bag, and the feed pipe 2 and the cover 1 are fixed to the workshop filling bracket. The feed pipe 2 is located in the center of the two mounting plates 5. After the personnel place the bag between the two mounting plates 5, they control the first cylinder 4 to work, causing the two mounting plates 5 to move closer, so that the positioning rods 6 with matching positions clamp the two sides of the bag. Then the adsorption component 3 is activated, and the second cylinder 301 causes the suction cup 302 to contact the two sides of the bag. At this time, the vacuum equipment removes the suction cup. The gas inside 302 causes it to adhere to the bag. Then, the second cylinder 301 resets and opens the top opening of the bag through the suction cup 302. After that, the blowing assembly works, and the blower 8 blows air through the pipe 7 into the air outlet pipe 9 inside the cover 1. The gas enters the bag and uses high-speed flow to completely expand the internal space, preventing the mixed fertilizer from overflowing and falling to the ground due to insufficient internal space during filling. Finally, the mixed fertilizer is injected into the bag through the discharge pipe 2. After filling is completed, the air inlet valve of the suction cup 302 opens and the vacuum pump stops working. At the same time, the first cylinder 4 drives the mounting plate 5 and the positioning rod 6 to reset, completing one filling process. Meanwhile, the personnel manually remove the filled bag to prevent the bag from tipping over.

[0035] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A clamping device for filling bags of blended fertilizer, comprising two first cylinders (4) arranged opposite to each other, wherein an mounting plate (5) is fixed to the end of the output shaft of the first cylinder (4), and two sets of positioning rods (6) are respectively fixed on the two mounting plates (5), characterized in that: It also includes a cover (1), a feeding pipe (2) is fixed on the top of the cover (1), an adsorption assembly (3) is installed on both ends of the cover (1) near the two mounting plates (5), and an air blowing assembly for blowing air into the bag opening is also installed on the cover (1).

2. The fertilizer blending bag clamping device according to claim 1, characterized in that: The air blowing assembly includes a blower (8) and an air outlet pipe (9) located inside the cover (1). One end of the air outlet pipe (9) is fixedly connected to the air outlet end of the blower (8) through a pipe (7).

3. The fertilizer blending bag clamping device according to claim 1, characterized in that: The adsorption assembly (3) includes a second cylinder (301), two second cylinders (301) are arranged opposite to each other and a suction cup (302) is fixed to the end of the output shaft of the second cylinder (301).

4. The fertilizer blending bag clamping device according to claim 3, characterized in that: The second cylinder (301) is fixedly connected to the cover (1), and the suction cup (302) is lower than the height of the cover (1).

5. The fertilizer blending bag clamping device according to claim 3, characterized in that: The second cylinder (301) and the positioning rod (6) are arranged in the same direction.

6. The fertilizer blending bag clamping device according to claim 1, characterized in that: The bottom end of the feed pipe (2) penetrates the cover (1).

7. The fertilizer blending bag clamping device according to claim 1, characterized in that: The two mounting plates (5) have tapered portions (601) fixed to the adjacent ends of the positioning rods (6).

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