A precision metering device for a split packager

Abstract

The utility model relates to a sub -packaging machine technical field discloses a kind of accurate metering device of sub -packaging machine, including support frame, the external fixed connection of support frame has hopper, the external fixed connection of hopper has discharge pipe, the internal fixed connection of discharge pipe has open-close pipe, the external fixed connection of open-close pipe has protruding plate, the internal fixed connection of protruding plate has cylinder, the drive end fixed connection of cylinder has push block, the internal rotary connection of open-close pipe has fan leaf one, one end of fan leaf one is fixedly connected with rotating shaft one, the external rotary connection of fan leaf one has fan leaf two, one end of fan leaf two is fixedly connected with rotating shaft two. In the utility model, the device is driven push block by cylinder, makes two fan leaves in open-close pipe collaborative rotation. The opening angle and frequency of fan leaf are controlled by program, realize accurate interception and release to material, to complete fast, accurate and reliable ration sub -packaging.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a precise metering device for packaging machines. Background Technology

[0002] In existing technologies, dispensing equipment often uses traditional gate valves or butterfly valves to control the flow and cut off of materials. These valves are prone to problems such as jamming, incomplete closure, and leakage due to material residue or wear during long-term use, severely affecting the accuracy and stability of dispensing and metering. Especially for granular or powdery materials, insufficient valve sealing can easily lead to material waste and contamination. Furthermore, traditional structures are complex and have high maintenance costs, making it difficult to meet the demands of high-efficiency, high-precision modern dispensing.

[0003] To overcome the aforementioned shortcomings, this invention provides a precision metering device based on a mechanically coordinated opening and closing structure. This device uses a cylinder to drive a push block, synchronously controlling the rotation of two fan blades within the opening and closing tube to achieve precise material interception and quantitative release. By utilizing programmed control of the cylinder stroke and operating frequency, the opening and closing angle and duration of the fan blades can be precisely adjusted, thereby effectively improving metering repeatability and dispensing efficiency. Therefore, a precision metering device for a dispensing machine is proposed to solve the aforementioned problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a precise metering device for a dispensing machine, aiming to improve the problems of valve jamming and inaccurate metering in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A precision metering device for a dispensing machine includes a support frame, a hopper fixedly connected to the outside of the support frame, a discharge pipe fixedly connected to the outside of the hopper, an opening and closing pipe fixedly connected to the inside of the discharge pipe, a protruding plate fixedly connected to the outside of the opening and closing pipe, a cylinder fixedly connected to the inside of the protruding plate, a push block fixedly connected to the drive end of the cylinder, a fan blade rotatably connected inside the opening and closing pipe, a rotating shaft fixedly connected to one end of the fan blade rotatably connected to the outside of the fan blade rotatably, a rotating shaft fixedly connected to one end of the fan blade rotatably connected to the outside of the fan blade rotatably, and a discharge assembly for easy replacement of the discharge channel is provided inside the discharge pipe. As a further description of the above technical solution: The discharge assembly includes multiple slots, which are formed inside the discharge pipe. Each slot has a locking block inside it. The same distributing pipe is fixedly connected to the outside of the multiple locking blocks. A bolt sleeve is rotatably connected to the outside of the distributing pipe. As a further description of the above technical solution: The cylinder drives the push block to push the first rotating shaft and the second rotating shaft. The rotation of the first rotating shaft causes the first fan blade to rotate inside the opening and closing tube. The rotation of the second rotating shaft causes the second fan blade to rotate inside the first fan blade and simultaneously inside the opening and closing tube. As a further description of the above technical solution: The first and second fan blades rotate and open and close in the opening and closing pipe to intercept and release the material flowing through the hopper; As a further description of the above technical solution: The timing of opening and closing of the first and second fan blades in the opening and closing tube is controlled to control the release of materials, thereby controlling the precise metering of the dispensing machine. As a further description of the above technical solution: Multiple of the aforementioned card blocks enter the card slots and rotate, thereby achieving a one-time fixation of the connection between the discharge pipe and the distribution pipe; As a further description of the above technical solution: Both the outer end of the discharge pipe and the outer side of the distribution pipe are provided with spiral patterns, and the inner side of the bolt sleeve is provided with spiral patterns. As a further description of the above technical solution: Rotate the bolt sleeve to tightly connect the discharge pipe and the distribution pipe, achieving secondary fixation.

[0006] This utility model has the following beneficial effects: 1. In this utility model, the device drives a push block with a cylinder, causing two fan blades to rotate collaboratively within the opening and closing tube. By controlling the opening and closing angle and frequency of the fan blades through a program, precise interception and release of materials are achieved, thereby completing rapid, accurate, and reliable quantitative dispensing.

[0007] 2. In this utility model, the discharge assembly achieves rapid positioning and initial fixation of the dispensing pipe through a snap-fit ​​structure, and then performs secondary locking and sealing through a rotating threaded fastening sleeve. This design facilitates the replacement of discharge pipes of different specifications and effectively prevents material leakage. Attached Figure Description

[0008] Figure 1 This is a three-dimensional schematic diagram of a precision metering device for a dispensing machine proposed in this utility model; Figure 2 This is a schematic diagram of the bolt sleeve of a precision metering device for a dispensing machine proposed in this utility model; Figure 3 This is a schematic diagram of the rotating shaft of a precision metering device for a dispensing machine according to the present invention. Figure 4This is a schematic diagram of the material dispensing tube of a precision metering device for a dispensing machine proposed in this utility model.

[0009] Legend: 1. Support frame; 2. Hopper; 3. Discharge pipe; 4. Opening and closing pipe; 5. Protruding plate; 6. Cylinder; 7. Push block; 8. Fan blade one; 9. Rotating shaft one; 10. Fan blade two; 11. Rotating shaft two; 12. Slot; 13. Locking block; 14. Distributing pipe; 15. Bolt sleeve. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0011] Reference Figures 1 to 3 This utility model provides an embodiment of a precision metering device for a dispensing machine, comprising a support frame 1, which serves as the foundation and skeleton of the entire device, providing support and stability. A hopper 2 is fixedly connected to the outside of the support frame 1, designed to store materials to be dispensed. Located above the device, it utilizes gravity to provide initial power for the material flow. A discharge pipe 3 is fixedly connected to the outside of the hopper 2, serving as the core path for the entire material flow. An opening / closing pipe 4 is fixedly connected inside the discharge pipe 3, forming a valve mechanism that can be precisely controlled to open and close. A protruding plate 5 is fixedly connected to the outside of the opening / closing pipe 4, serving as a mounting platform for fixation and support. A cylinder 6 is fixedly connected inside the protruding plate 5, serving as the drive source for the device, providing linear motion. A push block 7 is fixedly connected to the drive end of the cylinder 6, serving as a transmission component.

[0012] Inside the opening and closing pipe 4, a fan blade 8 is rotatably connected. This design serves as a key gate for controlling material flow. One end of the fan blade 8 is fixedly connected to a rotating shaft 9, which acts as the rotation hub for the fan blade 8. Externally, a fan blade 10 is rotatably connected to the fan blade 8. This design allows for the complete blocking or opening of the material channel. The fan blades 8 and 10 rotate and open within the opening and closing pipe 4, intercepting and releasing the material flowing through the hopper 2. The timing of the fan blades 8 and 10 within the opening and closing pipe 4 is controlled. The opening and closing mechanism controls the release of materials, thereby controlling the precise metering of the dispensing machine. One end of the second fan blade 10 is fixedly connected to the second rotating shaft 11. This design ensures that the two fan blades can be driven independently and synchronously. The cylinder 6 drives the push block 7 to push the first rotating shaft 9 and the second rotating shaft 11. The rotation of the first rotating shaft 9 drives the first fan blade 8 to rotate inside the opening and closing tube 4. The rotation of the second rotating shaft 11 drives the second fan blade 10 to rotate inside the first fan blade 8 and simultaneously inside the opening and closing tube 4. The discharge tube 3 has a discharge component inside that facilitates the replacement of the discharge channel.

[0013] Reference Figure 2 , Figure 4 The discharge assembly includes multiple slots 12, which are designed to provide insertion and engagement positions for initial positioning and connection. Multiple slots 12 are located inside the discharge tube 3, and each slot 12 has a locking block 13 inside it. This design is for quick alignment and initial locking to prevent detachment. The multiple locking blocks 13 are externally fixedly connected to the same distributing tube 14, which is designed as a replaceable functional module.

[0014] Multiple locking blocks 13 enter the locking slots 12 and rotate to achieve the primary fixation of the connection between the discharge pipe 3 and the distribution pipe 14. The external rotatable connection of the distribution pipe 14 is a bolt sleeve 15, which is designed to provide secondary tightening and sealing to ensure the stability and sealing of the connection and prevent material leakage. One end of the discharge pipe 3 and the external of the distribution pipe 14 are both provided with spiral patterns, and the inside of the bolt sleeve 15 is provided with spiral patterns. Rotating the bolt sleeve 15 tightly connects the discharge pipe 3 and the distribution pipe 14 to achieve secondary fixation.

[0015] Working Principle: A precise metering device for a dispensing machine. Its working principle for controlling the opening and closing of materials is mainly based on the structure of the hopper 2 fixed on the support frame 1 and the opening / closing pipe 4 inside the discharge pipe 3. Inside the opening / closing pipe 4, a first fan blade 8 and a second fan blade 10 are rotatably connected. One end of the first fan blade 8 is fixedly connected to a first rotating shaft 9, and one end of the second fan blade 10 is fixedly connected to a second rotating shaft 11. A protruding plate 5 is fixedly connected to the outside of the opening / closing pipe 4, and a cylinder 6 is fixedly connected inside the protruding plate 5. The drive end of the cylinder 6 is fixedly connected to a push block 7. When the cylinder 6 is activated, it drives the push block 7 to simultaneously push the first rotating shaft 9 and the second rotating shaft 11, causing the first fan blade 8 to rotate inside the opening / closing pipe 4, while the second fan blade 10 rotates outside the first fan blade 8, thus coordinating the opening and closing. The rotation angle of blade 8 and blade 10 is controlled by the stroke of cylinder 6. By timing or programming the pushing frequency and amplitude of cylinder 6, the blades can be opened and closed rapidly, thus accurately intercepting or releasing the material flowing from hopper 2 through discharge pipe 3. When blades 8 and 10 are closed, the material is blocked within the opening / closing pipe 4; when blades 8 and 10 are open, the material smoothly passes through discharge pipe 3 for dispensing. This design, through a mechanical opening and closing mechanism, avoids the jamming or leakage problems that may exist in traditional valves, ensuring the stability and repeatability of the metering process. The advantages are that this device can achieve high-precision metering, reduce material waste, improve dispensing efficiency, and has a simple, reliable structure that is easy to maintain. It is suitable for dispensing various granular or powdered materials, improving production automation and quality control levels.

[0016] The working principle of the discharge component of the precision metering device of this dispensing machine is as follows: Multiple slots 12 are provided inside the discharge pipe 3, and multiple corresponding locking blocks 13 are fixedly connected to the outside of the dispensing pipe 14. During installation, the locking blocks 13 on the dispensing pipe 14 are aligned and inserted into the slots 12 at the end of the discharge pipe 3. Then, the dispensing pipe 14 is rotated, causing the locking blocks 13 to slide into the locking position within the slots 12, thus achieving initial alignment and fixation between the discharge pipe 3 and the dispensing pipe 14—this is the first fixing. To further ensure the sealing and stability of the connection, a bolt sleeve 15 is also provided on the outside of the connection between the discharge pipe 3 and the dispensing pipe 14, and the outer sections where they connect are both machined with spiral patterns. By rotating the bolt sleeve 15, its internal threads engage with the external threads on the discharge pipe 3 and the dispensing pipe 14, thereby tightly pulling and connecting the two pipe sections together, forming a reliable secondary fixation. This design enables quick disassembly and replacement of the dispensing pipe 14, facilitating flexible switching of different specifications or uses of the discharge channel according to dispensing requirements, while ensuring the sealing of the connection to prevent material leakage.

[0017] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision metering device for a dispensing machine, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to the outside of a hopper (2), the hopper (2) is fixedly connected to the outside of a discharge pipe (3), the discharge pipe (3) is fixedly connected to the inside of an opening and closing pipe (4), the opening and closing pipe (4) is fixedly connected to the outside of a protruding plate (5), the protruding plate (5) is fixedly connected to the inside of a cylinder (6), the driving end of the cylinder (6) is fixedly connected to a push block (7), the opening and closing pipe (4) is rotatably connected to a fan blade (8), one end of the fan blade (8) is fixedly connected to a rotating shaft (9), the outside of the fan blade (8) is rotatably connected to a fan blade (10), one end of the fan blade (10) is fixedly connected to a rotating shaft (11), and the discharge pipe (3) is provided with a discharge assembly for easy replacement of the discharge channel.

2. The precise metering device for a dispensing machine according to claim 1, characterized in that: The discharge assembly includes multiple slots (12), which are located inside the discharge pipe (3). Each slot (12) has a locking block (13) inside it. The same distribution pipe (14) is fixedly connected to the outside of the multiple locking blocks (13). A bolt sleeve (15) is rotatably connected to the outside of the distribution pipe (14).

3. The precise metering device for a dispensing machine according to claim 1, characterized in that: The cylinder (6) drives the push block (7) to push the first rotating shaft (9) and the second rotating shaft (11). The first rotating shaft (9) rotates and drives the first fan blade (8) to rotate inside the opening and closing tube (4). The second rotating shaft (11) rotates and drives the second fan blade (10) to rotate inside the first fan blade (8) and simultaneously inside the opening and closing tube (4).

4. The precise metering device for a dispensing machine according to claim 1, characterized in that: The first fan blade (8) and the second fan blade (10) rotate and open in the opening and closing pipe (4) to intercept and release the material flowing through the hopper (2).

5. The precise metering device for a dispensing machine according to claim 1, characterized in that: The timing of opening and closing of the first fan blade (8) and the second fan blade (10) in the opening and closing pipe (4) is controlled, thereby controlling the release of materials and thus controlling the precise metering of the dispensing machine.

6. The precise metering device for a dispensing machine according to claim 2, characterized in that: Multiple of the card blocks (13) enter the card slot (12) and rotate, thereby achieving a one-time fixation of the connection between the discharge pipe (3) and the distribution pipe (14).

7. The precise metering device for a dispensing machine according to claim 2, characterized in that: The discharge pipe (3) and the outer side of the distribution pipe (14) are both provided with spiral patterns, and the bolt sleeve (15) is provided with spiral patterns inside.

8. The precise metering device for a dispensing machine according to claim 2, characterized in that: Rotate the bolt sleeve (15) to tightly connect the discharge pipe (3) and the distribution pipe (14) to achieve secondary fixation.

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