Vacuum drying device for engineering plastic preparation

Abstract

The utility model provides a vacuum drying device for engineering plastic preparation, which comprises a base and a drying box, the drying box is arranged on the base, an inner container is arranged in the drying box, a plurality of heating rods are further arranged in the drying box, a movable plate is arranged at the upper end of a bottom plate of the drying box in a front-back sliding mode, and a sealing plate is arranged at the rear end of the movable plate. A stirring mechanism is arranged above the drying box, and a vacuum pump is arranged below the drying box. The heating rods are uniformly distributed around the inner container through a vacuum environment created by the vacuum pump, so that the engineering plastic in the inner container can be uniformly heated, moisture or other volatile components in the engineering plastic can be quickly evaporated at a lower temperature, the drying speed is greatly improved, all parts of the engineering plastic can be ensured to obtain sufficient heat, and the drying efficiency is improved. And the condition of incomplete local drying is avoided. And the stirring mechanism continuously stirs, so that the materials are continuously turned over in the material storage barrel, the uniform heating of the materials is further ensured, and the drying efficiency and quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to the technical field of plastic drying, specifically relates to a vacuum drying device for engineering plastic preparation. BACKGROUND

[0002] With the development of modern industry, engineering plastics are widely used in many fields, such as automobile manufacturing, electronics and electrical appliances, aerospace, etc. These applications have very high quality requirements for engineering plastics, and moisture content is one of the key factors affecting their performance. In the preparation process of engineering plastics, the moisture in the plastic raw materials needs to be removed to ensure that the strength, dimensional stability, electrical properties, etc. of the product meet the standards. The traditional drying method has many shortcomings when processing engineering plastics, and cannot meet the needs of high-quality engineering plastic production, thereby promoting the research and development of new vacuum drying devices.

[0003] The ordinary heating drying method is to evaporate the moisture in the material by heating air under normal pressure. However, this method has some problems for engineering plastics. Engineering plastics are usually sensitive to temperature, and long-time drying at high temperature may cause problems such as thermal degradation and oxidation of plastics, affecting their performance. Moreover, the moisture evaporation speed is relatively slow under normal pressure, and the drying efficiency is low, which is difficult to meet the needs of large-scale production. SUMMARY

[0004] 1. The technical problem to be solved by the utility model:

[0005] The utility model provides a vacuum drying device for engineering plastic preparation to solve the technical problems existing in the above background technology.

[0006] 2. Technical scheme:

[0007] To achieve the above purpose, the utility model provides a technical scheme: a vacuum drying device for engineering plastic preparation, comprising a base and a drying box, the drying box is arranged on the base, and an inner container is arranged in the drying box, the drying box and the inner container form a space for containing engineering plastic materials, a plurality of heating rods are arranged in the drying box, a movable plate is slidably arranged on the upper end of the bottom plate of the drying box, the movable plate is used to drive the engineering plastic to enter and exit the drying box, a sealing plate is arranged at the rear end of the movable plate, the sealing plate seals the drying box when the movable plate enters the drying box, a stirring mechanism is arranged above the drying box, and a vacuum pump is arranged below the drying box.

[0008] Preferably, a storage barrel is arranged on the movable plate, and the storage barrel is used to store engineering plastics.

[0009] Preferably, the lower end of the movable plate is provided with a sliding block, and the upper end of the bottom plate of the drying box is provided with two parallel arranged guide rails, and the sliding block is slidably arranged on the guide rails.

[0010] Preferably, the outer side of the sealing plate is provided with a handle, and the bottom of the sealing plate is provided with two rollers through an L-shaped support.

[0011] Preferably, the stirring mechanism comprises a fixing seat fixed to the top end of the drying box, a hydraulic cylinder is arranged on the fixing seat, the piston rod of the hydraulic cylinder penetrates the fixing seat and the drying box in sequence and is connected with a mounting plate arranged in the drying box, and a plurality of stirring blades are arranged on the mounting plate.

[0012] 3. Beneficial effects:

[0013] Compared with the prior art, the technical scheme has the following beneficial effects:

[0014] The vacuum environment is created by the vacuum pump, the heating rods are uniformly distributed around the inner container, the engineering plastics in the inner container can be uniformly heated, the moisture or other volatile components in the engineering plastics can be rapidly evaporated at a lower temperature, the drying speed is greatly improved, the heat of the engineering plastics can be fully ensured, and the problem of incomplete local drying can be avoided.

[0015] The movable plate can slide on the bottom plate of the drying box through the cooperation of the sliding block and the guide rail, the operator can easily push or pull the storage barrel and the materials into or out of the drying box, the operation process of feeding and discharging is simplified, the labor intensity is reduced, and the work efficiency is improved. The sealing plate can be sealed after the movable plate enters the drying box, the vacuum environment in the drying box is ensured, the sealing plate and the inner container form a closed state, foreign impurities and other pollutants can be effectively prevented from entering the materials during the drying process, the purity of the engineering plastics is ensured, and the subsequent processing and use are facilitated. The rollers at the bottom of the sealing plate and the handle at the outer side make the opening and closing operation of the sealing plate more labor-saving and convenient, and the reliability of the sealing is improved.

[0016] The hydraulic cylinder in the stirring mechanism can drive the mounting plate to move up and down, and then the stirring blades on the mounting plate can stir the material. The stirring function can not only make the material evenly heated, but also can flexibly adjust the speed and amplitude of stirring according to different material characteristics and drying requirements, so as to achieve the best drying effect, is suitable for drying treatment of various engineering plastics, and has good drying effect on engineering plastic materials of different types, different shapes and sizes, has strong universality and adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a schematic view of the overall structure of the utility model;

[0018] Fig. 2 It is a schematic view of the bottom structure of the utility model;

[0019] Fig. 3 It is a schematic view of the external structure of the utility model;

[0020] Fig. 4 It is a schematic view of the internal structure of the utility model;

[0021] Fig. 5 It is an enlarged schematic view of A area of the utility model.

[0022] Reference signs:

[0023] 1, base; 2, drying box; 3, inner bag; 4, heating rod; 5, movable plate; 51, sliding block; 52, guide rail; 6, sealing plate; 61, handle; 62, roller; 7, stirring mechanism; 71, fixed seat; 72, hydraulic cylinder; 73, mounting plate; 74, stirring blade; 8, vacuum pump; 9, storage barrel. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings, the drawings show several embodiments of the utility model, however, the utility model can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0025] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the indicated device or element to have a particular orientation, to be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0026] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0027] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "provided with" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] It should be noted that the structures not introduced in the utility model are the same as or can be realized by using the prior art, which do not involve the design points and improvement direction of the utility model, and therefore will not be described here. Embodiment

[0029] Referring to the drawings Figs. 1-5 A vacuum drying device for preparing engineering plastics, comprising a base 1 and a drying box 2, the drying box 2 is arranged on the base 1, the inside of the drying box 2 is provided with an inner container 3, the drying box 2 and the inner container 3 constitute a space for containing engineering plastic materials, a plurality of heating rods 4 are arranged at equal intervals in the drying box 2, a movable plate 5 is slidably arranged on the upper end of the bottom plate of the drying box 2, the movable plate 5 is used to drive the engineering plastics to enter and exit the drying box 2, a sealing plate 6 is arranged at the rear end of the movable plate 5, when the movable plate 5 enters the drying box 2, the sealing plate 6 seals the drying box 2, a stirring mechanism 7 is arranged above the drying box 2, and a vacuum pump 8 is arranged below the drying box 2.

[0030] A storage barrel 9 is arranged on the movable plate 5, and the storage barrel 9 is used to store engineering plastics.

[0031] The lower end of the movable plate 5 is provided with a slider 51, and the upper end of the bottom plate of the drying oven 2 is provided with two parallel guide rails 52. The slider 51 is slidably mounted on the guide rails 52.

[0032] A handle 61 is provided on the outer side of the sealing plate 6, and two rollers 62 are provided on the bottom of the sealing plate 6 via an L-shaped frame.

[0033] The stirring mechanism 7 includes a fixed seat 71 fixed to the top of the drying box 2. The fixed seat 71 is used to install a hydraulic cylinder 72. The piston rod of the hydraulic cylinder 72 passes through the fixed seat 71 and is connected to the drying box 2 and the mounting plate 73. The mounting plate 73 is set inside the drying box 2 and has a number of stirring blades 74.

[0034] Working principle:

[0035] First, the operator pulls the sealing plate 6 using handle 61. The rollers 62 at the bottom of the sealing plate 6 make the pulling process easier, opening the sealing plate 6 outwards. As the sealing plate 6 opens outwards, it pulls the movable plate 5. The slider 51 at the lower end of the movable plate 5 slides backwards along the guide rail 52 on the bottom plate of the drying chamber 2, causing the movable plate 5 to move out of the drying chamber 2. The storage tank 9 is located on the movable plate 5, and the engineering plastic material to be dried can then be placed into the storage tank 9. Next, the movable plate 5 is pushed, moving the storage tank 9 and the engineering plastic material backwards along the guide rail 52 into the drying chamber 2, closing the sealing plate 6 to seal the drying chamber 2.

[0036] The vacuum pump 8 is activated, drawing air from the drying chamber 2 and inner liner 3 to reduce internal pressure and create a vacuum environment. This vacuum lowers the boiling point of water, allowing moisture and volatile components in the material to evaporate rapidly at a lower temperature, reducing the impact of high temperatures on the properties of engineering plastics. The heating rod 4 provides heat, ensuring the energy required for drying; the combination of these two elements achieves highly efficient drying.

[0037] Simultaneously, heating rod 4 is activated, heating the inner liner 3 and the material within it. This causes moisture and other volatile components in the material to evaporate under the combined effects of vacuum and heating. At the same time, stirring mechanism 7 is activated, hydraulic cylinder 72 operates, and its piston rod drives mounting plate 73 up and down. Stirring blades 74 on mounting plate 73 agitate the material. This stirring continuously tumbles the material within storage tank 9, ensuring more thorough contact with heat, uniform heating, improved drying efficiency, and prevention of localized overheating or insufficient drying. The stirring action of stirring mechanism 7 ensures uniform heating of the material, preventing deterioration or performance degradation due to localized overheating, and guaranteeing the quality stability of the dried engineering plastic.

[0038] After the drying is completed, the heating rod 4 and the vacuum pump 8 are closed, the sealing plate 6 is opened again, the movable plate 5 is pulled out, and the storage barrel 9 is taken out of the drying box 2, so that the drying and discharging process of the engineering plastic is completed. The design of the movable plate 5, the sealing plate 6, the sliding block 51, the guide rail 52, the roller 62 and the handle 61 and the like makes the feeding and discharging operation more convenient and improves the working efficiency of the whole drying process. The storage barrel 9 facilitates the storage and transfer of the material and reduces the scattering and loss of the material in the process of feeding and discharging the drying box 2.

[0039] The above-described embodiments only express certain implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application; it should be pointed out that, for ordinary skilled persons in the art, a number of modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application; therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A vacuum drying apparatus for engineering plastic production, characterized by: The utility model relates to an engineering plastics drying device, including base (1) and drying cabinet (2), drying cabinet (2) is set up on base (1), inside is equipped with inner bag (3), drying cabinet (2) and inner bag (3) constitute the space of containing engineering plastics material, still be equipped with a plurality of heating rod (4) in drying cabinet (2), the upper end of the bottom plate of drying cabinet (2) is equipped with movable plate (5) and slides back and forth, movable plate (5) is used to drive engineering plastics to enter and exit drying cabinet (2), the rear end of movable plate (5) is equipped with sealing plate (6), when movable plate (5) enters drying cabinet (2), sealing plate (6) seals drying cabinet (2), the upper portion of drying cabinet (2) is equipped with stirring mechanism (7), and its below is equipped with vacuum pump (8).

2. The vacuum drying device for preparing an engineering plastic according to claim 1, characterized in that: The movable plate (5) is provided with a storage barrel (9), which is used for storing engineering plastics.

3. The vacuum drying device for preparing engineering plastics according to claim 1, characterized in that: The lower end of the movable plate (5) is provided with a sliding block (51), and the upper end of the bottom plate of the drying cabinet (2) is provided with two parallel guide rails (52), and the sliding block (51) is slidably installed on the guide rails (52).

4. The vacuum drying apparatus for preparing an engineering plastic according to claim 3, characterized in that: The outer side of the sealing plate (6) is provided with a handle (61), and the bottom of the sealing plate (6) is provided with two rollers (62) through an L-shaped bracket.

5. The vacuum drying device for preparing engineering plastic according to claim 2, characterized in that: The stirring mechanism (7) includes a fixed seat (71) fixed to the top end of the drying cabinet (2), the fixed seat (71) is used for installing a hydraulic cylinder (72), the piston rod of the hydraulic cylinder (72) passes through the fixed seat (71) and the drying cabinet (2) in sequence and is connected with a mounting plate (73), the mounting plate (73) is arranged inside the drying cabinet (2), and a plurality of stirring blades (74) are arranged on the mounting plate (73).

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