A drying device for cable production

Abstract

The utility model relates to a kind of blow-drying device of cable production, it includes support frame and blow cover, the blow cover is set on support frame, airflow chamber is formed in the blow cover;Air inlet is opened on the sidewall of the blow cover, and the air inlet is communicated with gas supply pipe;Annular pressure chamber and multiple guide vanes are sequentially arranged in the blow cover along airflow direction, the annular pressure chamber is communicated with the air inlet, and its side towards the guide vane is opened with annular axial air outlet gap;The guide vane is fixedly connected with the inner wall of the blow cover, and correspond to the axial air outlet gap;Through-threading hole is opened in the both ends of the blow cover;Drainage hole is opened in the bottom of the blow cover.The utility model has the effect that it is convenient to operate, dry thoroughly, guarantee cable stable passage, improve energy utilization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cable production technology, and in particular to a cable drying device. Background Technology

[0002] During cable production, cables often require water cooling to meet process requirements, which inevitably leads to residual moisture on their surface. If this moisture is not removed promptly and thoroughly, it will directly cause illegible printing in subsequent processes, severely affecting product labeling quality. Furthermore, residual moisture can cause mold, oxidation, or dust adhesion on the cable surface during storage, damaging cable performance and lifespan. Therefore, integrating efficient and reliable drying equipment into the production line is crucial.

[0003] Currently, common cable drying methods mostly employ simple air nozzle direct blowing or half-type air-blowing molds. Air nozzle methods suffer from concentrated airflow and limited coverage, often requiring multiple units for coordination and cumbersome adjustments, resulting in uneven drying. While half-type molds can wrap the cable, their closed structure is prone to cable jamming on high-speed production lines, and moisture can easily accumulate inside, causing secondary contamination. More importantly, neither of these traditional methods effectively guides and utilizes airflow; most of the gas escapes before fully interacting with the cable surface, leading to significant waste of gas pressure and flow, and high energy consumption. In summary, existing technologies generally suffer from drawbacks such as inconvenient operation, incomplete drying, susceptibility to cable jamming, and low energy efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a drying device for cable production, which has the effects of convenient operation, thorough drying, ensuring stable cable passage, and improving energy utilization efficiency.

[0005] The above-mentioned utility model objective is achieved through the following technical solution:

[0006] A cable drying device includes a support frame and a blower shroud, the blower shroud being mounted on the support frame.

[0007] An airflow chamber is formed inside the blower hood;

[0008] An air inlet is provided on the side wall of the blower hood, and the air inlet is connected to an air supply pipe.

[0009] The blower hood is provided with an annular pressure equalization chamber and multiple guide vanes arranged sequentially along the airflow direction. The annular pressure equalization chamber is connected to the air inlet, and an annular axial air outlet gap is opened on the side facing the guide vanes. The guide vanes are fixedly connected to the inner wall of the blower hood and correspond to the axial air outlet gap.

[0010] The blower cover has through holes at both ends for threading wires;

[0011] The bottom of the blower shroud has a drain hole.

[0012] The above technical solution can be used to evenly distribute the pressure of the incoming airflow through the annular equalizing chamber, and then form a uniform airflow curtain covering the circumference of the cable through the annular axial air outlet gap. With the guidance of the airflow by the guide vanes, the cable surface can be dried efficiently without dead angles. At the same time, the cable threading hole ensures the stable passage of the cable, and the drain hole drains the liquid generated during drying in time, which improves the overall drying efficiency and the cleanliness of the device operation.

[0013] As a further technical solution of this utility model: the guide vanes are evenly distributed along the circumference of the airflow chamber;

[0014] The end of the guide vane facing the center of the airflow chamber is an arc-shaped section, and the extension direction of the arc-shaped section is parallel to the axis of the blower shroud.

[0015] Through the above technical solutions, the circumferentially evenly distributed guide vanes can make the airflow evenly surround the cable circumference, ensuring that the drying effect of each area of ​​the cable is consistent; the design of the arc section parallel to the axis of the blower hood not only reduces the resistance of the airflow when it flows through the vanes to maintain the stability of the airflow, but also avoids the vanes from scratching the surface of the cable, thus improving the uniformity of drying and enhancing the protection of the cable.

[0016] As a further technical solution of this utility model: an electromagnetic valve is provided on the gas supply pipe, and the electromagnetic valve is electrically connected to the controller.

[0017] The above technical solution allows the controller to regulate the on / off state of the solenoid valve, enabling on-demand airflow supply, avoiding ineffective air supply when there are no cables, effectively saving gas energy consumption, and reducing production and operating costs.

[0018] As a further technical solution of this utility model: a photoelectric sensor is provided on the cable inlet side of the blower cover; the photoelectric sensor is electrically connected to the controller.

[0019] Through the above technical solution, the photoelectric sensor can detect the position of the cable in real time and feed it back to the controller, which will then control the opening and closing of the solenoid valve to realize the automatic start and stop of the airflow supply, adapt to the conveying rhythm of cable production, and improve the automation level and production efficiency of the device.

[0020] As a further technical solution of this utility model: the bottom of the blower hood is provided with a collection tank that communicates with the drain hole, and the collection tank is connected to a drain pipe.

[0021] Through the above technical solution, the collection tank can collect the accumulated liquid discharged from the drain hole and then discharge it through the drain pipe, avoiding the accumulation of liquid residue from contaminating the device or cables. This not only maintains the cleanliness of the device's interior but also facilitates centralized treatment of waste liquid, reducing subsequent maintenance costs.

[0022] In summary, this utility model has at least one of the following beneficial technical effects:

[0023] 1. This utility model discloses a drying device for cable production. It achieves efficient drying of the cable surface by forming a combination structure of pressure distribution in an annular equalizing chamber, air distribution in an axial outlet gap, and guidance of the flow guide blades to form a swirling airflow, while ensuring stable cable passage and timely discharge of accumulated liquid.

[0024] 2. This utility model discloses a drying device for cable production. Through the design of circumferentially evenly distributed guide blades and arc-shaped sections parallel to the axis, it achieves a consistent circumferential drying effect for cables while avoiding scratching the surface of the cables by the blades.

[0025] 3. This utility model discloses a drying device for cable production, which realizes automatic start and stop of airflow on demand through a control structure of photoelectric sensor linked to solenoid valve, saving gas energy consumption and improving the automated operation efficiency of the device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a cable drying device according to Embodiment 1 of the present invention.

[0027] Figure 2 This is a structural diagram of the internal structure of a cable drying device according to the present invention.

[0028] Figure 3 for Figure 2 Cross-sectional distribution diagram of the guide vanes on the wind shield.

[0029] Figure 4 for Figure 2 Distribution diagram of the annular equalizing chamber on the cross-section of the wind shroud.

[0030] Reference numerals in the attached drawings: 1. Support frame; 2. Blower hood; 21. Airflow chamber; 22. Air inlet; 23. Wiring hole; 24. Drain hole; 3. Air supply pipe; 4. Annular equalizing chamber; 41. Air outlet gap; 5. Guide vane; 6. Solenoid valve; 7. Photoelectric sensor; 8. Collection tank; 9. Drain pipe. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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 application 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 application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] Example 1:

[0035] Reference Figure 1 This utility model discloses a cable drying device, including a support frame 1 and a blower hood 2. The blower hood 2 is fixed to the top crossbeam of the support frame 1 by bolts. The support frame 1 is made of high-strength angle steel welded together and has anti-slip pads at the bottom, which can provide stable support for the device and prevent the device from shifting due to vibration caused by cable passing through and airflow, thus ensuring stable drying operation.

[0036] Reference Figure 2 An air inlet 22 is provided on the side wall of the blower hood 2, and the air inlet 22 is connected to the air supply pipe 3. An annular pressure equalization chamber 4 is arranged inside the blower hood 2 along the airflow direction, and the annular pressure equalization chamber 4 is connected to the air inlet 22. The above components together constitute the airflow introduction and pressure equalization system. The air inlet 22 is located on the end side wall of the blower hood 2, and its axis is perpendicular to the side wall of the blower hood 2. The air supply pipe 3 is sealed and connected to the air inlet 22 through a threaded joint, which can stably deliver high-pressure gas to the inside of the device. The annular pressure equalization chamber 4 is nested in a ring shape inside the inner wall of the blower hood 2, and its axis coincides with the axis of the blower hood 2 and is precisely connected to the outlet end of the air inlet 22. After the gas enters, it diffuses 360° to achieve pressure equalization. Figure 4 The annular equalizing chamber 4 has an annular axial air outlet gap 41 with a width of 2-3mm on the side facing the guide vane 5. The gap is continuously distributed along the circumference of the equalizing chamber and is directly opposite the guide vane 5. It can convert the equalized gas into a continuous airflow curtain along the axis of the blower shroud 2.

[0037] Reference Figure 2 Multiple guide vanes 5 are arranged sequentially along the airflow direction inside the blower hood 2, and through-holes 23 are provided at both ends. The cable passes through the through-holes 23 into the airflow chamber 21, directly facing the airflow area formed by the guide vanes 5. (Refer to...) Figure 3 The guide vanes 5 are evenly distributed in a ring along the inner wall of the airflow chamber 21. One end of each vane is welded and fixed to the inner wall of the blower shroud 2, and the other end extends towards the center of the chamber, leaving a 5-8mm safety gap with the cable passage path. The vanes are generally inclined arc-shaped plates, with a smooth arc section 51 at the end facing the center of the chamber. The extension direction is strictly parallel to the axis of the blower shroud 2, so that the airflow curtain discharged from the axial air outlet slit 41 is guided by the arc surface of the ring-distributed guide vanes 5 to form a spiral swirling airflow around the cable. At the same time, it avoids rigid contact between the vanes and the cable surface, preventing scratches on the cable surface. The cable hole 23 is opened at the center of the end caps at both ends of the blower shroud 2. Its axis is collinear with the axis of the blower shroud 2, forming a straight passage for the cable to pass through. A rubber sealing ring is nested in the hole. The inner diameter of the sealing ring is slightly smaller than the outer diameter of the cable, which not only ensures the smooth passage of the cable, but also enhances the sealing of the airflow chamber 21 and reduces airflow leakage.

[0038] The bottom of the blower hood 2 has multiple drainage holes 24, which are connected to a collection tank 8, and the collection tank 8 is connected to a drainage pipe 9. The drainage holes 24 are located at the lowest point of the bottom of the blower hood 2, corresponding to the liquid accumulation area in the airflow chamber 21, and are directly connected to the funnel-shaped collection tank 8 below. The collection tank 8 is fixed to the bottom of the blower hood 2 by a snap fastener, and its bottom outlet is connected to the drainage pipe 9. The water generated during drying collects at the bottom of the blower hood 2 under the action of gravity, flows into the collection tank 8 through the drainage holes 24, and is then discharged to the waste liquid collection system through the drainage pipe 9, avoiding liquid residue from contaminating the device or cables.

[0039] Reference Figure 1 A normally closed solenoid valve 6 is connected in series on the air supply pipe 3, and a photoelectric sensor 7 is installed on the outside of the cable inlet end cap of the blower hood 2. Both are electrically connected to the controller. The solenoid valve 6 is located near the air inlet 22, and its control end is connected to the controller output interface to control the airflow. The photoelectric sensor 7's detection head is directly opposite the cable path through the cable hole 23, and its signal output end is connected to the controller input interface to detect the cable position in real time. When the photoelectric sensor 7 detects a cable, the controller instructs the solenoid valve 6 to open and supply air; when there is no cable, it controls it to close, realizing automatic start and stop of airflow to reduce energy consumption.

[0040] The working process of this utility model is as follows: Before the device is started, the blower hood 2 is fixed in a suitable position on the cable production line by the support frame 1, so that the wire holes 23 at both ends are aligned with the cable conveying path to ensure smooth cable passage. After the production line is started, the cable passes through the wire hole 23 on the inlet side of the blower hood 2. At this time, the photoelectric sensor 7 on the inlet side detects the cable signal and transmits it to the controller in real time. The controller then commands the solenoid valve 6 on the air supply pipe 3 to open. High-pressure gas enters the annular equalizing chamber 4 through the air supply pipe 3 and the air inlet 22. After the gas fully diffuses in the chamber to achieve pressure equalization, it forms a uniform airflow curtain along the axis of the blower hood 2 through the annular axial air outlet gap 41. The airflow curtain acts on the circumferentially evenly distributed guide vanes 5, and under the guidance of the vanes and the arc section 51, it is transformed into a stable swirling airflow. This airflow completely surrounds the cable and efficiently blows away residual moisture on its surface. The swept-away moisture collects at the bottom of the blower hood 2 under the action of gravity, flows into the collection tank 8 through the drain hole 24, and is finally discharged and treated through the drain pipe 9. When the photoelectric sensor 7 fails to detect the cable, the controller controls the solenoid valve 6 to close and stop the air supply, completing one drying cycle. This process is repeated in sync with the cable delivery rhythm.

[0041] The implementation principle of this utility model is as follows: through the synergistic action of the annular pressure equalization chamber 4, the guide vanes 5, the automatic control components, and the bottom drainage structure, the directional conversion, efficient utilization, and intelligent control of airflow are achieved. Specifically, the airflow introduced from the air inlet 22 first enters the annular pressure equalization chamber 4, where its annular cavity structure allows for full diffusion and pressure equalization, avoiding local pressure unevenness. The airflow is then discharged through the annular axial outlet gap 41, forming a uniform and stable axial airflow curtain. This axial airflow curtain then acts on the circumferentially uniformly arranged guide vanes 5. The specific inclination angle of the arc section 51 of the vanes and its extension direction parallel to the axis continuously guide the airflow, transforming it from axial motion into a high-speed swirling airflow surrounding the cable. This swirling airflow can wrap around the cable surface 360 ​​degrees without dead angles, efficiently removing moisture through the shearing and centrifugal action of the airflow. Simultaneously, the non-contact design of the arc section 51 completely avoids rigid scratching with the cable surface. At the control level, photoelectric sensor 7 detects the cable position in real time and feeds back the signal to the controller. The controller then controls the opening and closing of solenoid valve 6 to achieve automatic start and stop of airflow supply on demand, thereby significantly reducing no-load energy consumption. The water blown down is thrown to the cavity wall by gravity and centrifugal force and flows down the wall, eventually flowing into the collection tank 8 through the drain hole 24 and being discharged through the drain pipe 9, ensuring that the inside of the device is clean and dry. The close cooperation of all the above links enables this invention to achieve efficient, stable, energy-saving and non-destructive drying operations in the continuous production of cables.

[0042] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A cable drying device, comprising a support frame (1) and a blower hood (2), wherein the blower hood (2) is disposed on the support frame (1), characterized in that, An airflow chamber (21) is formed inside the blower hood (2); The blower hood (2) has an air inlet (22) on its side wall, and the air inlet (22) is connected to an air supply pipe (3); The blower hood (2) is provided with an annular pressure equalization chamber (4) and a plurality of guide vanes (5) arranged sequentially along the airflow direction. The annular pressure equalization chamber (4) is connected to the air inlet, and an annular axial air outlet slit (41) is opened on the side facing the guide vanes (5). The guide vanes (5) are fixedly connected to the inner wall of the blower hood (2) and correspond to the axial air outlet slit (41). The blower cover (2) has through holes (23) at both ends; The bottom of the blower hood (2) is provided with a drain hole (24).

2. The cable drying device according to claim 1, characterized in that, The guide vanes (5) are evenly distributed along the circumference of the airflow chamber (21); The end of the guide vane (5) facing the center of the airflow chamber (21) is an arc-shaped section (51), and the extension direction of the arc-shaped section (51) is parallel to the axis of the blower shroud (2).

3. The cable drying device according to claim 1, characterized in that, The gas supply pipe (3) is equipped with a solenoid valve (6), which is electrically connected to the controller.

4. The cable drying device according to claim 3, characterized in that, A photoelectric sensor (7) is provided on the cable inlet side of the blower hood (2); the photoelectric sensor (7) is electrically connected to the controller.

5. A cable drying device according to claim 1, characterized in that, The bottom of the blower hood (2) is provided with a collection tank (8) that communicates with the drain hole (24), and the collection tank (8) is connected to a drain pipe (9).

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