A molten plastic detection device

Abstract

This utility model relates to the field of plastic testing technology and discloses a molten plastic testing device, including a base plate, a support assembly fixedly connected to the upper surface of the base plate, a feeding assembly above the support assembly, and a detection assembly and a sealing assembly for controlling the opening and closing of the feeding assembly inside the support assembly. A timer inside the support assembly accurately records the time it takes for the molten plastic to drip from the feeding assembly, and a pressure sensor weighs the dripping molten plastic in real time, quantifying the flow behavior of the plastic under controlled conditions. Based on the two key parameters of dripping time and weight, the device can quickly assess the viscosity change trend of the molten plastic and determine its flow properties. The feeding assembly and sealing assembly work together to precisely control the release process of the molten plastic, avoiding data deviations caused by unstable dripping or excessive leakage, effectively improving the stability and repeatability of the test, and making it suitable for rapid testing tasks in field or production line environments.

Description

Technical Field

[0001] This utility model relates to the field of plastic testing technology, and more specifically, to a molten plastic testing device. Background Technology

[0002] Molten plastics are widely used in plastic processing fields such as injection molding, extrusion, blow molding, and thermoforming. Their flow properties have a significant impact on the molding quality, processing technology, and final performance of products. The viscosity of molten plastics is a key parameter characterizing their flow properties, and different types of plastics exhibit significant differences in viscosity at different temperatures and shear rates. Therefore, accurate and rapid measurement of the viscosity characteristics of molten plastics is crucial for optimizing plastic processing, controlling product quality, and selecting raw materials.

[0003] Existing methods for testing the viscosity of plastics typically rely on a series of experimental devices, such as rotational viscometers and plate rheometers. These devices measure the rheological properties of molten plastics by controlling temperature, pressure, and shear force. However, most of these devices are bulky, complex to operate, and often require specialized personnel for operation and maintenance, making them unsuitable for rapid on-site testing or real-time monitoring on production lines. Furthermore, some devices are ill-suited for stable testing of molten plastics under high-temperature, high-viscosity conditions, resulting in significant measurement deviations and high maintenance costs.

[0004] Therefore, there is a need to provide a molten plastic detection device to solve the problem that existing viscosity detection methods are not suitable for rapid on-site detection of molten plastics or real-time monitoring of production lines. Utility Model Content

[0005] The main objective of this invention is to provide a molten plastic detection device, which aims to solve the technical problems mentioned in the background section.

[0006] The present invention adopts the following technical solution: A molten plastic detection device includes a base plate, a support assembly fixedly connected to the upper end face of the base plate, a feeding assembly above the support assembly, and a detection assembly and a sealing assembly for controlling the opening and closing of the feeding assembly inside the support assembly. The support component is equipped with a timer for timing, and the detection component is equipped with a pressure sensor for weighing molten plastic, so as to time and weigh the molten plastic dripping from the dispensing component.

[0007] Furthermore, the support assembly includes a housing mounted on the upper surface of the base plate. A set of timers is fixedly connected to one side of the housing, and a set of indicator lights is fixedly connected to one side of the housing. A transparent sealing door is hinged to one side of the housing via two pins, and the transparent sealing door has a groove.

[0008] Furthermore, the feeding assembly includes a set of feeding hoppers installed on the upper end face of the housing. A partition is fixedly connected to the inner wall of the housing. The bottom end of each feeding hopper passes through the partition and extends to the bottom of the partition. A sealing cover is hinged to the outer surface of each feeding hopper by a pin. A pull block is fixedly connected to the front of each sealing cover.

[0009] Furthermore, the detection component includes a concave plate embedded in the back of the housing, a controller fixedly connected to the inner wall of the concave plate, a pressure sensor fixedly connected to the upper end face of the base plate, a carrier plate fixedly connected to the upper end face of the pressure sensor, a set of insertion holes opened on the upper end face of the carrier plate, an insertion rod slidably installed on the inner wall of each insertion hole, and a set of carrier plates fixedly connected to the top of the set of insertion rods.

[0010] Furthermore, the sealing assembly includes a tilting cylinder installed on the left side of the housing, a connecting rod fixedly connected to the output end of the tilting cylinder, a connecting plate fixedly connected to the outer surface of the connecting rod, and a set of baffles fixedly connected to the front side of the connecting plate.

[0011] Furthermore, two retaining rings are fixedly connected to the outer surface of the connecting rod, and the two retaining rings are fixedly connected to the left and right sides of the connecting plate respectively on their sides that are close to each other.

[0012] Furthermore, a set of pull plates is fixedly connected to the upper end face of each partition, and the upper end face of each pull plate is fixedly connected to the inner top wall of the housing.

[0013] Furthermore, each of the left and right sides of the housing is provided with a handle, and the two handles are fixedly connected to the left and right sides of the housing respectively on their sides that are close to each other.

[0014] Beneficial effects: This invention provides a molten plastic detection device. Through modules such as a timer, pressure sensor, and sealing assembly, the viscosity detection process of molten plastic becomes more accurate and automated. Specifically, the timer within the support assembly accurately records the time it takes for the molten plastic to drip from the dispensing assembly, while the pressure sensor weighs the dripping molten plastic in real time. The combination of these two components quantifies the flow behavior of the plastic under controlled conditions, allowing for rapid assessment of the viscosity change trend and determination of its flow properties based on the two key parameters of dripping time and weight. Furthermore, the dispensing and sealing assemblies work together to precisely control the release process of the molten plastic, avoiding data deviations caused by unstable dripping or excessive leakage. This effectively improves the stability and repeatability of the test, making it suitable for rapid detection tasks in field or production line environments. It eliminates the need for complex pre-processing and specialized operators, significantly simplifying traditional testing procedures and improving detection efficiency and response speed. This not only enhances the intelligence and practicality of the detection device but also meets the detection needs of molten plastic in various application environments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a molten plastic detection device according to this utility model; Figure 2 This is a side view of the molten plastic detection device of this utility model; Figure 3 This is a cross-sectional structural diagram of a molten plastic detection device according to the present invention; Figure 4 This is a three-dimensional structural diagram of the sealing component of this utility model; Figure 5 This is a schematic diagram of the disassembled structure of the detection component of this utility model; The components include: 1. Base plate; 2. Support assembly; 201. Machine housing; 202. Transparent sealing door; 203. Timer; 204. Indicator light; 205. Pull groove; 3. Discharge assembly; 301. Feed hopper; 302. Sealing cover; 303. Pull block; 304. Partition plate; 4. Detection assembly; 401. Concave plate; 402. Controller; 403. Pressure sensor; 404. Carrier plate; 405. Carrier tray; 406. Insert rod; 407. Insertion hole; 5. Sealing assembly; 501. Tilting cylinder; 502. Connecting rod; 503. Connecting plate; 504. Baffle; 505. Retaining ring; 6. Pull handle; 7. Pull plate.

[0016] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0017] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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 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, and therefore should not be construed as a limitation of this utility model. 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 with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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, 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] Reference Figures 1 to 5 This utility model proposes a molten plastic detection device, including a base plate 1, a support component 2 fixedly connected to the upper end surface of the base plate 1, a feeding component 3 provided above the support component 2, and a detection component 4 and a sealing component 5 for controlling the opening and closing of the feeding component 3 inside the support component 2. The support component 2 is equipped with a timer 203 for timing, and the detection component 4 is equipped with a pressure sensor 403 for weighing molten plastic, so as to time and weigh the molten plastic dripping from the discharge component 3.

[0022] In the above embodiment, the base plate 1 serves as the supporting foundation for the entire device, providing stable structural support. A support assembly 2 is fixedly connected to its upper surface. The support assembly 2 includes a timer 203, a pressure sensor 403, and a sealing assembly 5 for controlling the material dispensing assembly 3. The material dispensing assembly 3 above the support assembly 2 is responsible for dripping molten plastic downwards. By adjusting the sealing assembly 5, the dripping process of the molten plastic can be precisely controlled, preventing leakage or excessive dripping and ensuring the consistency and stability of the dripping speed. During the dripping process of the molten plastic, the timer 203 accurately records the dripping time, while the pressure sensor 403 simultaneously performs weighing, measuring the weight of the dripping molten plastic in real time. Through the coordinated work of these two components, operators can simultaneously obtain the time and weight data of the molten plastic dripping and scientifically judge and differentiate the viscosity of the molten plastic based on this data.

[0023] The combined use of the timer 203 and pressure sensor 403 in this device ensures synchronous recording of time and weight during the dripping of molten plastic, making the detection process more accurate and avoiding inaccurate measurements caused by human error or improper operation. Furthermore, the combination of the sealing component 5 and the discharging component 3 makes the dripping process of the molten plastic completely controllable, effectively preventing excessive dripping or leakage and improving the stability and repeatability of the test results. The overall design simplifies the cumbersome operations of traditional detection methods, reduces manual intervention, and improves detection efficiency. It is particularly suitable for rapid on-site detection and can meet the needs of accurate viscosity detection of molten plastic in different application scenarios, providing convenient and reliable technical support for real-time monitoring of molten plastic quality.

[0024] refer to Figure 1 In one embodiment, the support assembly 2 includes a housing 201 mounted on the upper surface of the base plate 1. A set of timers 203 are fixedly connected to one side of the housing 201, and a set of indicator lights 204 are fixedly connected to one side of the housing 201. A transparent sealing door 202 is hinged to one side of the housing 201 by two pins, and the transparent sealing door 202 has a groove 205.

[0025] In the above embodiment, the support component 2 includes a housing 201 mounted on the upper surface of the base plate 1. A set of timers 203 is fixedly connected to the upper surface of the housing 201, and a set of indicator lights 204 are fixedly connected to the front of the housing 201. A transparent sealing door 202 is hinged to the front of the housing 201 via two pins, and a groove 205 is provided on the front of the transparent sealing door 202. By setting the transparent sealing door 202, the operator can observe the internal status of the device at any time during the molten plastic dripping process, ensuring the normal operation of the equipment. In addition, the design of the transparent sealing door 202 also facilitates the maintenance and cleaning of the equipment. The timers 203 can accurately record the time of molten plastic dripping, providing reliable data for subsequent analysis. The indicator lights 204 allow the operator to understand the working status of the device in a timely manner through light feedback during operation, especially at night or in low-light environments, where the indicator lights 204 effectively improve the operability and safety of the device. Through this integrated design, support component 2 not only effectively supports each functional module, but also enhances the visibility and operability of the device, improving work efficiency and safety.

[0026] refer to Figure 1 and Figure 3 In one embodiment, the feeding assembly 3 includes a set of feeding hoppers 301 installed on the upper end face of the housing 201. A partition 304 is fixedly connected to the inner wall of the housing 201. The bottom end of each feeding hopper 301 passes through the partition 304 and extends to the bottom of the partition 304. A sealing cover 302 is hinged to the outer surface of each feeding hopper 301 by a pin. A pull block 303 is fixedly connected to the front of each sealing cover 302.

[0027] In the above embodiment, the feeding assembly 3 includes a set of feeding hoppers 301 installed on the upper surface of the housing 201. A partition 304 is fixedly connected to the inner wall of the housing 201. The bottom end of each feeding hopper 301 penetrates the partition 304 and extends below it. A sealing cover 302 is hinged to the outer surface of each feeding hopper 301 via a pin. A pull block 303 is fixedly connected to the front of the sealing cover 302. This design, through the cooperation of the feeding hoppers 301 and the sealing cover 302, prevents molten plastic from leaking or overflowing unnecessarily. The bottom end of the feeding hopper 301 penetrates the partition 304 and extends below it, effectively preventing external interference during the flow of molten plastic, while ensuring a stable and uniform amount of molten plastic. The sealing cover 302 is hinged via a pin, making operation convenient and providing strong sealing. When the sealing cover 302 is closed, it ensures the safe storage of molten plastic inside the feeding hopper 301. When material needs to be discharged, operators can easily open the sealing cover 302 using the pull block 303 to insert molten plastic samples for testing. This design effectively improves the equipment's sealing and leak-proof performance, while simplifying the operation process and increasing the ease of use of the equipment.

[0028] refer to Figure 3 and Figure 5 In one embodiment, the detection component 4 includes a concave plate 401 embedded in the back of the housing 201. A controller 402 is fixedly connected to the inner wall of the concave plate 401. A pressure sensor 403 is fixedly connected to the upper end face of the base plate 1. A carrier plate 404 is fixedly connected to the upper end face of the pressure sensor 403. A set of insertion holes 407 are opened on the upper end face of the carrier plate 404. An insertion rod 406 is slidably installed on the inner wall of each insertion hole 407. A set of carrier plates 405 are fixedly connected to the top of the set of insertion rods 406.

[0029] In the above embodiment, the detection component 4 includes a concave plate 401 installed on the back of the housing 201. A controller 402 is fixedly connected to the inner wall of the concave plate 401. A pressure sensor 403 is fixedly connected to the upper end face of the base plate 1. A carrier plate 404 is fixedly connected to the upper end face of the pressure sensor 403. A set of insertion holes 407 are opened on the upper end face of the carrier plate 404. Insert rods 406 are slidably installed on the inner wall of each insertion hole 407. A set of carrier plates 405 are fixedly connected to the top of the set of insert rods 406. By providing the pressure sensor 403, the device can accurately measure the weight change of molten plastic during the dripping process. The weight change sensed by the pressure sensor 403 will be directly fed back to the controller 402, thereby monitoring the flow state of the molten plastic in real time. The cooperative design of the insertion holes 407 and the insert rods 406 not only ensures that the carrier plate 405 can stably support the molten plastic, but also makes the carrier plate 405 more flexible when weighing the molten plastic through the sliding characteristics of the insert rods 406, avoiding measurement errors. The controller 402 can control the smoothness and accuracy of the entire detection process through real-time linkage with the pressure sensor 403. Through this precise coordination, the detection component 4 can efficiently and accurately determine the viscosity of the molten plastic, improving the stability and repeatability of the measurement.

[0030] refer to Figure 4 In one embodiment, the sealing assembly 5 includes a tilting cylinder 501 installed on the left side of the housing 201. A connecting rod 502 is fixedly connected to the output end of the tilting cylinder 501. A connecting plate 503 is fixedly connected to the outer surface of the connecting rod 502. A set of baffles 504 is fixedly connected to the front side of the connecting plate 503.

[0031] In the above embodiment, the sealing assembly 5 includes a tilting cylinder 501 installed on the left side of the housing 201. A connecting rod 502 is fixedly connected to the output end of the tilting cylinder 501, and a connecting plate 503 is fixedly connected to the outer surface of the connecting rod 502. A set of baffles 504 are fixedly connected to the front of the connecting plate 503. The tilting cylinder 501 provides power to rotate the connecting rod 502 and the connecting plate 503, enabling the baffles 504 on the connecting plate 503 to effectively control the opening and closing of the bottom of the feed hopper 301. The design of the tilting cylinder 501 ensures that the sealing assembly 5 can be automatically controlled, avoiding errors caused by manual operation. By rotating the baffles 504 driven by the tilting cylinder 501, the outflow of molten plastic can be precisely controlled, preventing leakage or excessive dripping, thus improving the working efficiency and stability of the device. Furthermore, the cooperation between the tilting cylinder 501 and the connecting plate 503 enhances the reliability of the sealing assembly 5, enabling stable operation in complex working environments.

[0032] refer to Figure 4In one embodiment, two retaining rings 505 are fixedly connected to the outer surface of the connecting rod 502, and the two retaining rings 505 are fixedly connected to the left and right sides of the connecting plate 503 respectively on their side faces that are close to each other.

[0033] In the above embodiment, two retaining rings 505 are fixedly connected to the outer surface of the connecting rod 502. The sides of the two retaining rings 505 that are close to each other are fixedly connected to the left and right sides of the connecting plate 503, respectively. The design of the retaining rings 505 effectively limits the range of motion of the connecting plate 503, preventing it from shaking or loosening during operation, and ensuring the stable operation of the entire sealing assembly 5 during use. Through the cooperation between the retaining rings 505 and the connecting plate 503, the sealing assembly 5 can more precisely control the amount and speed of molten plastic dripping, thereby improving the accuracy of detection and the overall stability of the device.

[0034] refer to Figure 3 In one embodiment, a set of pull plates 7 are fixedly connected to the upper end face of each partition 304, and the upper end face of each pull plate 7 is fixedly connected to the inner top wall of the housing 201.

[0035] In the above embodiment, a set of pull plates 7 are fixedly connected to the upper end face of the partition 304, and the upper end face of each pull plate 7 is fixedly connected to the inner top wall of the housing 201. The design of the pull plates 7 further enhances the structural stability of the partition 304, preventing the partition 304 from shifting or deforming under high load conditions. The fixed connection between the pull plates 7 and the inner top wall of the housing 201 ensures the stability of the partition 304 throughout the entire operation process, thereby improving the working accuracy and safety of the device.

[0036] refer to Figure 1 In one embodiment, the housing 201 is provided with handles 6 on both the left and right sides, and the two handles 6 are fixedly connected to the left and right sides of the housing 201 respectively on the side that is close to each other.

[0037] In the above embodiment, handles 6 are provided on both the left and right sides of the housing 201, and the sides of the two handles 6 that are close to each other are fixedly connected to the left and right sides of the housing 201, respectively. The design of the handles 6 makes the device easy to move or replace. Especially when equipment maintenance or relocation is required, the handles 6 provide better operability, reduce the difficulty and labor intensity of manual operation, and improve the ease of use of the equipment.

[0038] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A molten plastic detection device, characterized in that, Includes a base plate (1), a support component (2) is fixedly connected to the upper end surface of the base plate (1), a feeding component (3) is provided above the support component (2), and a detection component (4) and a sealing component (5) for controlling the opening and closing of the feeding component (3) are provided inside the support component (2). The support component (2) is equipped with a timer (203) for timing, and the detection component (4) is equipped with a pressure sensor (403) for weighing molten plastic, so as to time and weigh the molten plastic dripping from the feeding component (3).

2. The molten plastic detection device according to claim 1, characterized in that, The support assembly (2) includes a housing (201) mounted on the upper surface of the base plate (1). A set of timers (203) is fixedly connected to one side of the housing (201), and a set of indicator lights (204) is fixedly connected to one side of the housing (201). A transparent sealing door (202) is hinged to one side of the housing (201) by two pins. The transparent sealing door (202) has a groove (205).

3. The molten plastic detection device according to claim 2, characterized in that, The feeding assembly (3) includes a set of feeding hoppers (301) installed on the upper end face of the housing (201). A partition (304) is fixedly connected to the inner wall of the housing (201). The bottom end of each feeding hopper (301) passes through the partition (304) and extends to the bottom of the partition (304). A sealing cover (302) is hinged to the outer surface of each feeding hopper (301) by a pin. A pull block (303) is fixedly connected to the front of each sealing cover (302).

4. The molten plastic detection device according to claim 2, characterized in that, The detection component (4) includes a concave plate (401) embedded in the back of the housing (201). A controller (402) is fixedly connected to the inner wall of the concave plate (401). The pressure sensor (403) is fixedly connected to the upper end face of the base plate (1). A carrier plate (404) is fixedly connected to the upper end face of the pressure sensor (403). A set of insertion holes (407) is opened on the upper end face of the carrier plate (404). A rod (406) is slidably installed on the inner wall of each insertion hole (407). A set of carrier plates (405) are fixedly connected to the top of the set of insertion rods (406).

5. The molten plastic detection device according to claim 2, characterized in that, The sealing assembly (5) includes a tilting cylinder (501) installed on the left side of the housing (201). The output end of the tilting cylinder (501) is fixedly connected to a connecting rod (502). The outer surface of the connecting rod (502) is fixedly connected to a connecting plate (503). A set of baffles (504) is fixedly connected to the front side of the connecting plate (503).

6. The molten plastic detection device according to claim 5, characterized in that, Two retaining rings (505) are fixedly connected to the outer surface of the connecting rod (502), and the two retaining rings (505) are fixedly connected to the left and right sides of the connecting plate (503) respectively on their side that are close to each other.

7. The molten plastic detection device according to claim 3, characterized in that, Each partition (304) has a set of pull plates (7) fixedly connected to its upper end face, and the upper end face of each pull plate (7) is fixedly connected to the inner top wall of the housing (201).

8. The molten plastic detection device according to claim 2, characterized in that, The housing (201) is provided with handles (6) on both the left and right sides, and the two handles (6) are fixedly connected to the left and right sides of the housing (201) respectively on the side that is close to each other.

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