Hot drying device for extrusion processing of rubber tube

Abstract

According to the hot drying device for extrusion processing of the rubber pipe, airflow conveyed by the air inlet pipe enters the first air guide cavity and the second air guide cavity through the connecting cavity, and conveying of hot air airflow is achieved through the air supply holes formed in the outer wall of the first air guide cavity and the outer wall of the second air guide cavity; the first air guide cavity and the second air guide cavity which are arranged at intervals form the air channel, so that the rubber pipe can be effectively subjected to air, and condensate generated on the surface of the rubber pipe is dried; the multiple air supply holes are formed at intervals in the length direction, the air supply holes are formed at intervals in the vertical direction in the direction from one ends of the first air guide cavity and the second air guide cavity to the other ends of the first air guide cavity and the second air guide cavity, and therefore differential air supply in the gradient direction can be achieved. The air supply uniformity in the height direction is improved, and the requirement for heating nonuniformity caused by bending and tilting of the rubber pipe in the conveying process is met, so that the hot drying treatment of the rubber pipe after extrusion machining is completed can be effectively improved, and the machining quality of a finished rubber pipe product is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of processing equipment for rubber hose processing, in particular to a heat drying device used for rubber hose extrusion processing. Background Art

[0002] The main purpose of heat treatment of hose after extrusion is to change the structure and performance of the material through heat treatment to meet specific requirements. The following are some common reasons:

[0003] Eliminate residual stress: During the extrusion process, residual stress will be generated in the material due to the rapid squeezing and stretching of the material. These residual stresses may cause the product to deform or break during use. Thermal drying can help eliminate these residual stresses and improve the stability and durability of the product.

[0004] Improve the mechanical properties of materials: Heat treatment can change the crystal structure of materials, thereby affecting their mechanical properties, such as strength, hardness and toughness. This is very important for some application scenarios with special requirements, such as products used in high temperature or high pressure environments.

[0005] Improve dimensional stability: Heat treatment helps improve the dimensional stability of materials and reduce the dimensional changes of products under temperature changes. This is critical for some applications that need to maintain precise dimensions, such as precision instruments and engineering parts.

[0006] Adjusting the properties of materials: Thermal drying can adjust the electrical, magnetic, optical and other properties of materials to make them more suitable for specific application areas.

[0007] Removing impurities introduced during the extrusion process: During the extrusion process, some impure substances or impurities may be introduced. Thermal drying helps to remove these impurities and improve the purity of the material.

[0008] Improve appearance and surface quality: Thermal treatment can also improve the surface gloss and appearance of the product, making it more attractive.

[0009] Especially during the processing of the hose, its surface temperature will change due to different processing stages. When the humidity meets certain conditions, condensation or dew will appear on its surface. If the dew or dew is not heated and dried in time, it will seriously affect the product quality of the hose. Utility Model Content

[0010] In view of this, the technical problem to be solved by the utility model is: how to provide a hot drying device for hose extrusion processing to improve the hot drying airflow to act evenly on the hose surface to effectively remove the condensation generated on the hose surface and ensure product quality.

[0011] To achieve the above-mentioned purpose, the utility model proposes a heat drying device for hose extrusion processing, which includes a frame, an air cavity, and an air inlet pipe;

[0012] The air cavity is fixedly arranged on the frame, the air inlet pipe is arranged on the top of the air cavity, a plurality of the air inlet pipes are arranged at intervals along the length direction of the air cavity, and the air inlet pipe is used to transport hot air to the interior of the air cavity;

[0013] The air inlet pipe is connected to the air cavity, the air cavity includes a connecting cavity, a first air guide cavity, and a second air guide cavity, the first air guide cavity and the second air guide cavity are respectively connected to the two sides of the connecting cavity along the front-back direction, the first air guide cavity and the second air guide cavity are arranged side by side, the air inlet pipe is connected to the connecting cavity, and the airflow transported by the air inlet pipe enters the first air guide cavity and the second air guide cavity respectively through the connecting cavity;

[0014] The outer wall of the first air guiding cavity and the outer wall of the second air guiding cavity are arranged at intervals, and an air duct is formed by the outer wall of the first air guiding cavity and the outer wall of the second air guiding cavity. Air supply holes are arranged on the outer walls of the first air guiding cavity and the second air guiding cavity, and a plurality of the air supply holes are arranged at intervals along the length direction of the first air guiding cavity or the second air guiding cavity. The vertical distance between the air supply holes and the bottom wall of the connecting cavity gradually decreases in a direction from one end of the first air guiding cavity to the other end of the first air guiding cavity, and the vertical distance between the air supply holes and the bottom wall of the connecting cavity gradually decreases in a direction from one end of the second air guiding cavity to the other end of the second air guiding cavity.

[0015] Furthermore, the air cavity is fixedly connected to the frame via a support plate.

[0016] Furthermore, the first air guiding cavity and the second air guiding cavity are extended toward the bottom of the connecting cavity.

[0017] Furthermore, the first air guiding cavity and the second air guiding cavity are arranged vertically to the connecting cavity.

[0018] Furthermore, the air duct is used to accommodate a hose, so that the hose is located between the first air guiding cavity and the second air guiding cavity.

[0019] Compared with the related art, the utility model proposes a heat drying device for hose extrusion processing, which has the beneficial effect that the airflow transported by the air inlet pipe enters the first air guide cavity and the second air guide cavity respectively through the connecting cavity, and the hot air flow is transported from the air supply holes arranged on the outer walls of the first air guide cavity and the second air guide cavity. The air duct formed by the first air guide cavity and the second air guide cavity arranged at intervals allows the hose to be effectively blown and the condensation generated on its surface to be dried. The multiple air supply holes are arranged at intervals along the length direction. The air supply holes are arranged at intervals along the vertical direction from one end of the first air guide cavity and the second air guide cavity to the other end thereof, thereby realizing differentiated air supply in the gradient direction, improving the uniformity of air supply in the height direction and satisfying the uneven heating caused by bending and warping of the hose during transportation, thereby effectively improving the heat drying treatment of the hose after the extrusion process is completed, and ensuring the processing quality of the finished hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a heat drying device for hose extrusion processing in an embodiment of the utility model;

[0021] Figure 2 It is a partially enlarged schematic diagram of the internal structure of a heat drying device for hose extrusion processing in an embodiment of the utility model;

[0022] Figure 3 It is a partial schematic diagram of a heat drying device used for hose extrusion processing in an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] See also Figure 1-3 As shown, the utility model provides a heat drying device for hose extrusion processing, which includes a frame 11, an air cavity 20, and an air inlet pipe 30.

[0025] The air cavity 20 is fixedly disposed on the frame 11, and the air cavity 20 is fixedly connected to the frame 11 through a support plate 12. An air inlet duct 30 is disposed on the top of the air cavity 20, and a plurality of air inlet ducts 30 are spaced apart along the length direction of the air cavity 20, and the air inlet duct 30 is used to transport hot air to the interior of the air cavity 20.

[0026] The air inlet duct 30 is connected to the air cavity 20. The air cavity 20 includes a connecting cavity 23, a first air guide cavity 21, and a second air guide cavity 22. The first air guide cavity 21 and the second air guide cavity 22 are respectively connected to both sides of the connecting cavity 23 in the front-back direction. The first air guide cavity 21 and the second air guide cavity 22 are arranged side by side. The air inlet duct 30 is connected to the connecting cavity 23. The airflow transported by the air inlet duct 30 enters the first air guide cavity 21 and the second air guide cavity 22 through the connecting cavity 23. The first air guide cavity 21 and the second air guide cavity 22 are extended along the bottom of the connecting cavity 23.

[0027] The outer wall of the first air guiding cavity 21 and the outer wall of the second air guiding cavity 22 are arranged at intervals, and the outer wall of the first air guiding cavity 21 and the outer wall of the second air guiding cavity 22 form an air duct 24. The first air guiding cavity 21 and the second air guiding cavity 22 are arranged vertically with the connecting cavity 23. The air duct 24 is used to accommodate a rubber hose so that the rubber hose is located between the first air guiding cavity 21 and the second air guiding cavity 22 to withstand the hot air delivered by the air supply hole 25.

[0028] The airflow transported by the air inlet pipe 30 enters the first air guide cavity 21 and the second air guide cavity 22 respectively through the connecting cavity 23, and the hot air flow is transported from the air supply holes 25 arranged on the outer walls of the first air guide cavity 21 and the second air guide cavity 22. The air duct 24 formed by the first air guide cavity 21 and the second air guide cavity 22 arranged at intervals allows the rubber hose to be effectively exposed to wind and dries the condensation generated on its surface.

[0029] Air supply holes 25 are provided on the outer walls of the first air guide cavity 21 and the second air guide cavity 22 , and a plurality of air supply holes 25 are arranged at intervals along the length direction of the first air guide cavity 21 or the second air guide cavity 22 .

[0030] The vertical distance between the air supply hole 25 and the bottom wall 231 of the connecting cavity 23 gradually decreases in a direction from one end of the first air guide cavity 21 to the other end of the first air guide cavity 21, and the vertical distance between the air supply hole 25 and the bottom wall 231 of the connecting cavity 23 gradually decreases in a direction from one end of the second air guide cavity 22 to the other end of the second air guide cavity 22.

[0031] Specifically, the air supply holes 25 arranged in the first air guide cavity 21 and the second air guide cavity 22 are staggered along the height direction of the first air guide cavity 21 and the second air guide cavity 22. In the direction from one end of the first air guide cavity 21 and the second air guide cavity 22 to the other end, the vertical distance between the air supply hole 25 and the bottom wall 231 of the connecting cavity 23 gradually decreases, specifically referring to the vertical distance between the center of the air supply hole 25 and the bottom wall 231 of the connecting cavity 23. The multiple air supply holes 25 are spaced apart along the length direction. The air supply holes 25 are spaced apart along the vertical direction from one end of the first air guide cavity 21 and the second air guide cavity 22 to the other end. This can achieve differentiated air supply in the gradient direction, improve the uniformity of air supply in the height direction, and meet the uneven heating caused by bending and warping of the hose during transportation. This can effectively improve the heat drying treatment of the hose after the extrusion process is completed, and ensure the processing quality of the finished hose.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A heat drying device for hose extrusion processing, characterized in that: It includes a frame, an air cavity, and an air inlet pipe; The air cavity is fixedly arranged on the frame, the air inlet pipe is arranged on the top of the air cavity, a plurality of the air inlet pipes are arranged at intervals along the length direction of the air cavity, and the air inlet pipe is used to transport hot air to the interior of the air cavity; The air inlet pipe is connected to the air cavity, the air cavity includes a connecting cavity, a first air guide cavity, and a second air guide cavity, the first air guide cavity and the second air guide cavity are respectively connected to the two sides of the connecting cavity along the front-back direction, the first air guide cavity and the second air guide cavity are arranged side by side, the air inlet pipe is connected to the connecting cavity, and the airflow transported by the air inlet pipe enters the first air guide cavity and the second air guide cavity respectively through the connecting cavity; The outer wall of the first air guiding cavity and the outer wall of the second air guiding cavity are arranged at intervals, and an air duct is formed by the outer wall of the first air guiding cavity and the outer wall of the second air guiding cavity. Air supply holes are arranged on the outer walls of the first air guiding cavity and the second air guiding cavity, and a plurality of the air supply holes are arranged at intervals along the length direction of the first air guiding cavity or the second air guiding cavity. The vertical distance between the air supply holes and the bottom wall of the connecting cavity gradually decreases in a direction from one end of the first air guiding cavity to the other end of the first air guiding cavity, and the vertical distance between the air supply holes and the bottom wall of the connecting cavity gradually decreases in a direction from one end of the second air guiding cavity to the other end of the second air guiding cavity.

2. A heat drying device for hose extrusion processing as claimed in claim 1, characterized in that: The air chamber is fixedly connected to the frame via a supporting plate.

3. A heat drying device for hose extrusion processing as claimed in claim 2, characterized in that: The first air guiding cavity and the second air guiding cavity are extended toward the bottom of the connecting cavity.

4. A heat drying device for hose extrusion processing as claimed in claim 1, characterized in that: The first air guiding cavity and the second air guiding cavity are arranged vertically to the connecting cavity.

5. A heat drying device for hose extrusion processing as claimed in claim 1, characterized in that: The air duct is used to accommodate a rubber hose, so that the rubber hose is located between the first air guiding cavity and the second air guiding cavity.

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