A blown film machine hopper drying apparatus with real-time moisture monitoring

By installing a moisture detection sensor and an electric opener/closer inside the hopper, combined with the use of a resistance heating belt, real-time moisture monitoring and precise drying control of the blown film machine hopper are achieved. This solves the problem of inaccurate moisture monitoring in traditional devices and improves product quality and energy efficiency.

CN224681182UActive Publication Date: 2026-08-25WEIFANG HUASHANG NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202522066608.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2026-08-25
Estimated Expiration
2035-09-25

AI Technical Summary

Technical Problem

Traditional blown film machine hopper drying devices cannot monitor the moisture changes of plastic granules in real time, making it difficult to accurately control the drying process. This may result in problems such as incomplete moisture removal or over-drying, affecting product quality and energy consumption.

Method used

A moisture detection sensor and an electric opener are installed inside the hopper to monitor the moisture content in real time and control the opening and closing of the discharge port. Combined with the efficient heating of the resistance heating belt, precise drying control is achieved.

Benefits of technology

Ensuring moisture content is kept within an appropriate range avoids processing problems and energy waste, thereby improving product quality and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to blow molding processing technical field discloses a kind of water content real-time monitoring's blown film machine hopper drying device, comprising: hopper fixing frame, the bottom four corners of hopper fixing frame are provided with support, and support bottom surface is equipped with moving wheel, reinforcing beam is installed between adjacent supports, hopper fixing frame top is provided with hopper, heating module is embedded and installed in hopper inner wall, multiple groups of moisture detection sensors are arranged in hopper, and the outer wall of hopper is provided with electric opening and closing device, and the electric opening and closing device is provided with material port baffle on it. The moisture detection sensor set can monitor the moisture content of plastic particles in the hopper in real time, ensure that the moisture is controlled within a proper range, and avoid processing problems and the decline of final product quality caused by excessive moisture. At the same time, the device controls the opening and closing of the discharge port through the electric opening and closing device, achieving precise control of the drying process, which not only ensures the drying effect, but also avoids energy waste and loss of raw material performance caused by over-drying.
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Description

Technical Field

[0001] This utility model relates to the field of blow molding technology, specifically a blown film machine hopper drying device with real-time moisture monitoring. Background Technology

[0002] In the plastics processing industry, blown film machines are one of the core pieces of equipment for manufacturing plastic films. During production, controlling the moisture content of the plastic raw materials is crucial, as residual moisture in the plastic granules directly affects the processing performance of the blown film machine. Excessive moisture not only leads to problems such as bubbles, breakage, and surface defects during processing, but can also affect the physical properties of the final product, such as transparency, strength, and toughness. Therefore, ensuring that the moisture content of the raw material granules is controlled within an appropriate range is one of the key factors in ensuring the quality of the plastic film.

[0003] Traditional hopper dryers typically use hot air to dry plastic granules, evaporating moisture through continuous heating. However, this method has several limitations. First, traditional dryers are mostly batch-processing devices, unable to monitor the moisture content of the plastic granules in the hopper in real time. This makes precise control of the drying process difficult, potentially leading to incomplete moisture removal or over-drying, resulting in energy waste and loss of raw material properties. Second, in actual production, the moisture content of plastic granules may change during processing. Traditional dryers cannot dynamically adjust to these changes, affecting drying efficiency and final product quality.

[0004] Therefore, based on the above-mentioned technical problems, it is necessary for those skilled in the art to develop a blown film machine hopper drying device with real-time moisture monitoring. Utility Model Content

[0005] The purpose of this invention is to provide a blown film machine hopper drying device with real-time moisture monitoring to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A technical solution for a blown film machine hopper drying device with real-time moisture monitoring includes: a hopper fixing frame, brackets at the four corners of the bottom of the hopper fixing frame, and casters mounted on the bottom surface of the brackets; a reinforcing beam between adjacent brackets; a hopper at the top of the hopper fixing frame; a heating module embedded in the inner wall of the hopper; multiple sets of moisture detection sensors inside the hopper; and an electric opener / closer on the outer wall of the hopper, with a feed outlet baffle on the electric opener / closer.

[0008] As a preferred technical solution, the electric opener / closer drives the material outlet baffle to slide horizontally to control the opening and closing of the material outlet.

[0009] As a preferred technical solution, the heating module is a resistance heating strip, the inner wall of which is tightly fitted to the outer wall of the hopper.

[0010] As a preferred technical solution, the detection end of the moisture detection sensor extends into the hopper to monitor the moisture content of the plastic particles in real time.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention relates to a blown film machine hopper drying device with real-time moisture monitoring. The installed moisture sensor monitors the moisture content of the plastic granules in the hopper in real time, ensuring that the moisture content is controlled within an appropriate range, thus avoiding processing problems and a decline in final product quality caused by excessive moisture. Simultaneously, the device controls the opening and closing of the discharge port via an electric opener, achieving precise regulation of the drying process. This ensures drying efficiency while avoiding energy waste and raw material performance loss due to over-drying. Furthermore, the heating module uses a resistance heating strip that fits tightly against the outer wall of the hopper, improving heating efficiency and ensuring the stability and reliability of the drying process. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of a blown film machine hopper drying device with real-time moisture monitoring;

[0014] Figure 2 This is a top view schematic diagram of a blown film machine hopper drying device with real-time moisture monitoring;

[0015] Figure 3 This is a side view of a blown film machine hopper drying device with real-time moisture monitoring.

[0016] In the attached diagram, the following are the reference numerals: 1. Hopper fixing frame; 2. Support frame; 3. Moving wheel; 4. Reinforcing beam; 5. Hopper; 6. Heating module; 7. Moisture detection sensor; 8. Electric opener / closer; 81. Inlet baffle. Detailed Implementation

[0017] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples.

[0018] like Figure 1 , Figure 2 and Figure 3As shown, this utility model provides a technical solution for a blown film machine hopper drying device with real-time moisture monitoring: it consists of a hopper fixing frame 1, a support 2, a moving wheel 3, a reinforcing beam 4, a hopper 5, a heating module 6, a moisture detection sensor 7, an electric opener / closer 8, and a material outlet baffle 81.

[0019] The hopper fixing frame 1 serves as the supporting structure for the entire device. Supports 2 are installed at the four corners of its bottom, and casters 3 are mounted on the bottom surface of the supports 2 to facilitate the movement and positioning of the device. Reinforcing beams 4 are installed between adjacent supports 2 to enhance the stability of the entire device.

[0020] The hopper 5 is located on top of the hopper holder 1 and is used to hold the plastic granules to be dried. A heating module 6, which is a resistance heating element, is embedded in the inner wall of the hopper 5. Its inner wall is tightly fitted to the outer wall of the hopper 5 to ensure heating efficiency. Through the heating action of the heating module 6, the moisture in the plastic granules can be evaporated.

[0021] To monitor the moisture content of the plastic granules in the hopper 5 in real time, this embodiment includes multiple sets of moisture detection sensors 7 installed inside the hopper 5. The detection end of the moisture detection sensor 7 extends into the hopper 5, accurately sensing the moisture content of the plastic granules and transmitting the detection data to the control system for subsequent processing.

[0022] To achieve precise control of the drying process, this embodiment includes an electric opener / closer 8 on the outer wall of the hopper 5, with a discharge port baffle 81 mounted on the electric opener / closer 8. The electric opener / closer 8 can drive the discharge port baffle 81 to slide horizontally, thereby controlling the opening and closing of the discharge port. When the moisture detection sensor 7 detects that the moisture content of the plastic granules reaches a preset value, the control system can control the electric opener / closer 8 to open the discharge port and release the dried plastic granules; when the moisture content is too high, the discharge port is closed, and the drying process continues.

[0023] The blown film machine hopper drying device with real-time moisture monitoring provided in this embodiment can monitor the moisture content of plastic particles in the hopper 5 in real time through the installed moisture detection sensor 7, ensuring that the moisture content is controlled within an appropriate range. Simultaneously, the opening and closing of the discharge port is controlled by an electric opener / closer 8, achieving precise regulation of the drying process. Furthermore, the heating module 6 uses a resistance heating strip that fits tightly against the outer wall of the hopper 5, improving heating efficiency. The entire device has a compact structure, is easy to operate, and provides excellent drying results, significantly improving the production quality and efficiency of plastic films.

[0024] The working principle and usage process of this utility model: After assembling the various components of this solution in sequence, work according to the above implementation methods according to actual needs to complete all working steps.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 connection 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.

[0028] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A blown film machine hopper drying device with real-time moisture monitoring, characterized in that, include: A hopper fixing frame (1) is provided with brackets (2) at the four corners of the bottom of the hopper fixing frame (1), and the bottom surface of the brackets (2) is equipped with moving wheels (3). A reinforcing beam (4) is installed between adjacent brackets (2). A hopper (5) is provided on the top of the hopper fixing frame (1). A heating module (6) is embedded in the inner wall of the hopper (5). Multiple moisture detection sensors (7) are provided in the hopper (5). An electric opener (8) is provided on the outer wall of the hopper (5), and a feed port baffle (81) is provided on the electric opener (8).

2. The blown film machine hopper drying device with real-time moisture monitoring according to claim 1, characterized in that: The electric opener (8) drives the feed port baffle (81) to slide horizontally and control the opening and closing of the discharge port.

3. The blown film machine hopper drying device with real-time moisture monitoring according to claim 1, characterized in that: The heating module (6) is a resistance heating strip, and its inner wall is tightly attached to the outer wall of the hopper (5).

4. A blown film machine hopper drying device with real-time moisture monitoring according to claim 1, characterized in that: The detection end of the moisture detection sensor (7) extends into the hopper (5) to monitor the moisture content of the plastic particles in real time.