Quantitative metering mechanism of plastic particle packaging machine
By introducing a drive assembly consisting of a fixed disc and a tilting plate into a plastic granule packaging machine, combined with the control of gravity and pressure sensors, the problems of large quantitative measurement errors and inaccurate feeding have been solved, achieving precise quantitative feeding of plastic granules and improving packaging accuracy.
Patent Information
- Application Number
- CN202520032955.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-07
AI Technical Summary
The quantitative metering mechanism of existing plastic granule packaging machines has problems such as large metering errors and inaccurate material feeding control, resulting in inaccurate packaging.
A drive assembly including a fixed plate, a tilting plate, a gravity sensor, and a pressure sensor is adopted. The gravity sensor accurately weighs and discharges the material, the tilting plate tilts and blocks the discharge cylinder, and the pressure sensor controls the push rod motor to achieve precise quantitative material discharge.
It enables precise quantitative feeding of plastic granules, avoiding over- or under-feeding and improving the precision and accuracy of packaging.
Smart Images

Figure CN223935012U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic granule packaging machine technology, and in particular to a quantitative measuring mechanism for a plastic granule packaging machine. Background Technology
[0002] In the packaging process of plastic granules, the accuracy of quantitative measurement is crucial. While simple weighing mechanisms can theoretically measure weight directly, in practice, limitations in sensor response speed and accuracy, as well as interference from factors such as impact and vibration during material descent, can lead to significant measurement errors. Furthermore, traditional weighing mechanisms lack precise control over material feeding after weighing, often resulting in over- or under-feeding, further affecting packaging accuracy. Therefore, this application proposes a precise quantitative feeding mechanism for plastic granule packaging machines to avoid over- or under-feeding of materials. Summary of the Invention
[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a precise quantitative feeding mechanism for plastic granule packaging machines to avoid excessive or insufficient material feeding.
[0004] The technical solution of this utility model is as follows: a quantitative metering mechanism for a plastic granule packaging machine, including a packaging machine and a conveying device disposed on one side of the packaging machine for conveying the granules after packaging. The side wall of the packaging machine is also equipped with a first controller for controlling the operation of its various components. A discharge assembly is provided at the discharge end of the packaging machine, and a drive assembly for quantitative feeding of plastic granules is provided inside the discharge assembly.
[0005] The discharge assembly includes a discharge cylinder and a discharge pipe arranged vertically. The drive assembly includes a fixed plate installed inside the discharge cylinder and a flip plate rotatably installed on the bottom inner wall of the discharge pipe. A connecting rod is slidably installed on the bottom inner wall of the flip plate, and the other end of the connecting rod is connected to a push rod motor that controls its pulling.
[0006] Optionally, the output end of the micro motor is connected to a rotating rod that passes through the discharge cylinder, and a fixing disc is fitted around the outer ring of the rotating rod.
[0007] Optionally, the fixing plate is a circular plate and the inner diameter of the circular plate is adapted to the inner diameter of the discharge cylinder.
[0008] Optionally, a protruding rod is fixedly sleeved on the outer ring of one end of the rotating rod that passes through the discharge cylinder, and a fixing block is provided below the protruding rod that is fixedly connected to one side wall of the packaging machine.
[0009] Optionally, a pressure sensor is provided on the top of the fixing block and is in contact with the bottom end of the protruding rod. A second controller is also provided below the pressure sensor and is connected to the side wall of the packaging machine. The second controller and the pressure sensor are connected by a wire for communication.
[0010] Optionally, the second controller is connected to the push rod motor via a wireless communication signal, and the base end of the push rod motor is connected to a mounting plate that is connected to the side wall of the packaging machine.
[0011] Optionally, the two ends of the connecting rod are respectively hinged to a first hinge seat and a second hinge seat, the second hinge seat is connected to the output end of the push rod motor, and the first hinge seat is connected to a slider.
[0012] Optionally, the bottom wall of the flip plate is provided with a groove, and the slider is slidably disposed in the groove.
[0013] Optionally, a gravity sensor is installed on the upper surface wall of the flip plate, and the output end of the gravity sensor is communicatively connected to the control end of the micro motor.
[0014] Compared with the prior art, the present invention has the following beneficial technical effects:
[0015] This utility model achieves the feeding of plastic granules by setting the fixed plate upright, and accurately weighs the plastic granules fed into the discharge pipe by setting the gravity sensor, so as to achieve the purpose of flipping the fixed plate to block the discharge cylinder, thereby preventing the material from continuing to be fed, thus achieving accurate weighing and feeding of materials.
[0016] Furthermore, the push rod motor is started by contacting the protruding rod and the pressure sensor, which in turn pushes the connecting rod downward, thereby flipping the flip plate along one end of the hinge to discharge the plastic granules for packaging.
[0017] In summary, this utility model has strong structural linkage and can achieve quantitative feeding and precise weighing, thus realizing accurate feeding of plastic granules, avoiding feeding too much or too little, and further improving packaging accuracy. Attached Figure Description
[0018] Figure 1 A front view schematic diagram of this utility model is provided;
[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the packaging machine and the discharge assembly;
[0020] Figure 3 This is a structural cross-sectional schematic diagram of the material feeding assembly and the drive assembly;
[0021] Figure 4 for Figure 3A structural diagram.
[0022] Figure label:
[0023] 1. Packaging machine; 11. First controller;
[0024] 2. Conveying equipment;
[0025] 3. Discharge assembly; 31. Discharge cylinder; 32. Discharge pipe;
[0026] 4. Drive assembly; 41. Micro motor; 42. Rotating rod; 43. Fixed plate; 44. Protruding rod; 45. Fixed block; 46. Second controller; 47. Push rod motor; 48. Connecting rod; 481. First hinge seat; 482. Second hinge seat; 49. Flip plate; 490. Slide groove; 491. Slider;
[0027] 5. Pressure sensor;
[0028] 6. Gravity sensor. Detailed Implementation
[0029] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.
[0030] The components of the embodiments of this disclosure, which are typically described and shown in the accompanying drawings, can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of embodiments of this disclosure provided in the drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure.
[0031] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.
[0032] In the description of this disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0033] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0034] Example
[0035] like Figure 1 and Figure 2 As shown, the present invention proposes a quantitative metering mechanism for a plastic granule packaging machine, including a packaging machine 1 and a conveying device 2 disposed on one side of the packaging machine 1 for conveying the granules after packaging. The side wall of the packaging machine 1 is also equipped with a first controller 11 for controlling the operation of its various components. A discharge assembly 3 is provided at the discharge end of the packaging machine 1, and a drive assembly 4 for quantitative feeding of plastic granules is provided inside the discharge assembly 3.
[0036] like Figure 3 As shown, the discharge assembly 3 includes a discharge cylinder 31 and a discharge pipe 32 arranged vertically. The drive assembly 4 includes a fixed disk 43 installed inside the discharge cylinder 31 and a tilting plate 49 rotatably disposed on the bottom inner wall of the discharge pipe 32. The tilting plate 49 is rotatably connected to the lower part of the discharge pipe 32. A connecting rod 48 is slidably installed on the bottom inner wall of the tilting plate 49. The two ends of the connecting rod 48 are respectively hinged to a first hinge seat 481 and a second hinge seat 482. The second hinge seat 482 is connected to the output end of the push rod motor 47. A slider 491 is connected to the first hinge seat 481. The bottom plate of the tilting plate 49... The wall has a groove 490, and the slider 491 is slidably disposed in the groove 490. Both the groove 490 and the slider 491 have a "T" shaped cross-section. A gravity sensor 6 is installed on the upper surface of the flip plate 49. The output end of the gravity sensor 6 is communicatively connected to the control end of the micro motor 41. The fixed plate 43 is used to control its horizontal or vertical setting. The other end of the connecting rod 48 is connected to the push rod motor 47 that controls its pulling. The second controller 46 is connected to the push rod motor 47 via a wireless communication signal. The base end of the push rod motor 47 is connected to a mounting plate that is connected to the side wall of the packaging machine 1.
[0037] like Figure 3As shown, the output end of the micro motor 41 is connected to a rotating rod 42 that passes through the discharge cylinder 31. A fixed plate 43 is fitted around the outer ring of the rotating rod 42. The fixed plate 43 is a circular plate and the inner diameter of the circular plate is adapted to the inner diameter of the discharge cylinder 31. A protruding rod 44 is fixedly fitted around the outer ring of one end of the rotating rod 42 that passes through the discharge cylinder 31. A fixing block 45 is fixedly connected to one side wall of the packaging machine 1 below the protruding rod 44. A pressure sensor 5 is set on the top of the fixing block 45 and contacts the bottom end of the protruding rod 44. A second controller 46 is also set below the pressure sensor 5 and connected to the side wall of the packaging machine 1. The second controller 46 and the pressure sensor 5 are connected by a wire for communication.
[0038] In this embodiment, the initial feeding is performed through the discharge cylinder 31. The vertical arrangement of the fixed plate 43 is used to ensure the normal feeding of plastic granules. When the gravity sensor 6 measures that the feeding of plastic granules is sufficient, it sends a signal to the control terminal of the micro motor 41, which starts the micro motor 41. The rotation of the rotating rod 42 realizes the horizontal rotation of the fixed plate 43. When the fixed plate 43 is in a horizontal state, the material will not be fed. At the same time, the bottom end of the protruding rod 44 contacts the pressure sensor 5, and then sends a contact signal to the second controller 46. The second controller 46 controls the push rod motor 47 to drive, so that the output end of the push rod motor 47 pushes the second hinge seat 482 downward. At the same time, one end of the connecting rod 48 is pulled downward, and the other end of the connecting rod 48 pulls the slider 491 connected to the top of the first hinge seat 481, thereby pulling and flipping the flipping plate 49. This achieves the tilting guidance of the flipping plate 49 for feeding of plastic granules, thus realizing the metering and packaging of plastic granules.
[0039] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A quantitative metering mechanism for a plastic granule packaging machine, comprising a packaging machine (1) and a conveying device (2) disposed on one side of the packaging machine (1) for conveying the packaged granules, wherein a first controller (11) for controlling the operation of its various components is also installed on the side wall of the packaging machine (1), characterized in that: The packaging machine (1) is provided with a discharge assembly (3) at the discharge end, and the discharge assembly (3) is provided with a drive assembly (4) for quantitative feeding of plastic granules. The discharge assembly (3) includes a discharge cylinder (31) and a discharge pipe (32) arranged vertically. The drive assembly (4) includes a fixed plate (43) installed in the discharge cylinder (31) and a flip plate (49) rotatably arranged on the bottom inner wall of the discharge pipe (32). A connecting rod (48) is slidably installed on the bottom inner wall of the flip plate (49). The other end of the connecting rod (48) is connected to a push rod motor (47) that controls its pulling.
2. The quantitative metering mechanism of a plastic granule packaging machine according to claim 1, characterized in that, A micro motor (41) is installed on one side of the discharge cylinder (31). The output end of the micro motor (41) is connected to a rotating rod (42) that passes through the discharge cylinder (31). A fixed plate (43) is fitted around the outer ring of the rotating rod (42).
3. The quantitative metering mechanism of a plastic granule packaging machine according to claim 2, characterized in that, The fixed plate (43) is a circular plate and the inner diameter of the circular plate is adapted to the inner diameter of the discharge cylinder (31).
4. The quantitative metering mechanism of a plastic granule packaging machine according to claim 2, characterized in that, The rotating rod (42) has a protruding rod (44) fixedly sleeved on the outer ring of one end of the discharge cylinder (31), and a fixing block (45) fixedly connected to one side wall of the packaging machine (1) is provided below the protruding rod (44).
5. The quantitative metering mechanism of a plastic granule packaging machine according to claim 4, characterized in that, The top of the fixing block (45) is provided with a pressure sensor (5) that is in contact with the bottom end of the protrusion (44). Below the pressure sensor (5) is a second controller (46) that is connected to the side wall of the packaging machine (1). The second controller (46) and the pressure sensor (5) are connected by a wire for communication.
6. The quantitative metering mechanism of a plastic granule packaging machine according to claim 5, characterized in that, The second controller (46) is connected to the push rod motor (47) via a wireless communication signal. The base end of the push rod motor (47) is connected to a mounting plate that is connected to the side wall of the packaging machine (1).
7. The quantitative metering mechanism of a plastic granule packaging machine according to claim 1, characterized in that, The two ends of the connecting rod (48) are respectively hinged to a first hinge seat (481) and a second hinge seat (482). The second hinge seat (482) is connected to the output end of the push rod motor (47), and the first hinge seat (481) is connected to a slider (491).
8. The quantitative metering mechanism of a plastic granule packaging machine according to claim 7, characterized in that, The bottom wall of the flip plate (49) is provided with a groove (490), and the slider (491) is slidably disposed in the groove (490).
9. The quantitative measuring mechanism of a plastic granule packaging machine according to claim 8, characterized in that, A gravity sensor (6) is installed on the upper surface of the flip plate (49), and the output end of the gravity sensor (6) is communicatively connected to the control end of the micro motor (41).