A supercharged retractable water blowing device for an extruder

Abstract

The utility model belongs to cable water removal field provides a kind of water blowing device of pressure type telescopic extruding machine, it includes: telescopic mechanism is movably arranged in the upper of support base, and the height difference between it and support base can be adjusted, and the movable end of telescopic mechanism is connected with at least a pair of relatively open and close clamping block.Compared with prior art, the utility model has the advantages that the gas source from external compressor air machine is pressurized and accurately regulated by pressurizing mechanism, the problem that water blowing is not complete due to insufficient gas source pressure of conventional water blowing device is overcome;With the flexible position adjustment of telescopic mechanism, the high-pressure gas flow after adjustment is acted on cable surface by blowing mechanism, can efficiently and completely remove the cooling water attached to cable surface after extruding, effectively avoid the quality defects such as jacket disconnection, hole, unclear printing in the next process due to residual moisture, improve the appearance quality and structural reliability of cable product.

Description

Technical Field

[0001] This utility model belongs to the field of cable dewatering, specifically relating to a pressurized, retractable extruder water blowing device. Background Technology

[0002] During cable production, the plastic insulation or sheath layer needs to be immediately cooled and shaped in a cooling water tank after being extruded by an extruder. After cooling, a large amount of moisture will adhere to the cable surface. If this moisture is not thoroughly removed, it can easily lead to the following problems when entering the next process (such as outer sheath extrusion): poor adhesion (disconnection) between the sheath and inner layer, unclear printing on the sheath surface, and even serious quality problems such as water ingress into the cable core and copper strip oxidation due to moisture penetration.

[0003] In existing technologies, compressed air is typically used to remove moisture from the cable surface. However, most cable manufacturers only have one centralized compressed air unit shared by multiple machines, resulting in insufficient air pressure at each extruder and poor blowing performance. Furthermore, traditional blowing devices have a fixed structure and cannot adapt to the production needs of cables with different outer diameters. Especially when the cable end traction rope passes through, manual disassembly or temporary relocation is required, which is cumbersome and disrupts production continuity. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a pressurized, retractable extruder water blowing device that is simple in structure, has good stability, and can control the air pressure to ensure product quality.

[0005] The objective of this utility model can be achieved by addressing the following technical problem: a pressurized, retractable extruder blowing device is proposed, comprising a support base, a telescopic mechanism, an air blowing mechanism, and a pressurizing mechanism, wherein:

[0006] The telescopic mechanism is movably disposed above the support base and the height difference between it and the support base can be adjusted. The movable end of the telescopic mechanism is connected to at least one pair of clamping blocks that can be opened and closed relative to each other. The clamping blocks can be close to or away from the support base.

[0007] The pressurizing mechanism is connected to the support base. The pressurizing mechanism includes a pressure regulating valve, which is connected to an external compressed air machine and is connected to the air blowing mechanism.

[0008] One end of the air blowing mechanism is connected to the clamping block, and the other end is connected to the air pressure regulating valve. When the cable extruded by the external extruder passes through the clamping block, the air pressure of the air blowing mechanism is adjusted by the air pressure regulating valve to blow away the moisture on the surface of the cable.

[0009] In the above-mentioned pressurized retractable extruder water blowing device, the air blowing mechanism includes an air blowing pipe and at least one set of air blowing ports. The air blowing ports are located inside the clamping block. One end of the air blowing pipe is connected to the air blowing port, and the other end is connected to the air pressure regulating valve.

[0010] In the above-mentioned pressurized retractable extruder water blowing device, the telescopic mechanism includes a driving member and an opening and closing rod. The movable end of the driving member is connected to the opening and closing rod, and the clamping block is connected to the opening and closing rod to control the distance between the two clamping blocks.

[0011] In the aforementioned pressurized retractable extruder blowing device, the blowing direction of the air outlet is arranged in a triangular shape to surround and blow the circumferential surface of the cable.

[0012] In the aforementioned pressurized retractable extruder water blowing device, extension frames are formed on the top two side walls of the support base, and telescopic rods arranged in a vertical direction are movably connected to the extension frames, with the driving component connected to the telescopic rods.

[0013] In the aforementioned pressurized retractable extruder water blowing device, a telescopic switch is detachably connected to the support base, and the telescopic switch is connected to the drive component.

[0014] In the aforementioned pressurized retractable extruder water blowing device, the extension frame has a threaded hole, and the telescopic rod is threaded into the threaded hole.

[0015] In the aforementioned pressurized telescopic extruder water blowing device, the telescopic rod is a height adjusting screw.

[0016] In the aforementioned pressurized retractable extruder water blowing device, a gas flow pipe is also connected between the retractable switch and the air pressure regulating valve.

[0017] In the above-mentioned pressurized retractable extruder water blowing device, the pressurizing mechanism further includes a pressure gauge, which is used to monitor the compressed air pressure in the blowing pipe so that the pressure regulating valve can adjust the compressed air pressure input to the blowing port.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present invention provides a pressurized and retractable extruder water blowing device. The pressurization mechanism pressurizes and precisely adjusts the air source from the external compressed air machine, which overcomes the problem of incomplete water blowing caused by insufficient air source pressure in traditional water blowing devices. With the flexible position adjustment of the telescopic mechanism, the adjusted high-pressure airflow acts on the cable surface through the blowing mechanism, which can efficiently and thoroughly remove the cooling water attached to the cable surface after extrusion. This effectively avoids quality defects such as sheath separation, holes, and unclear printing in the next process caused by residual moisture, and greatly improves the appearance quality and structural reliability of cable products.

[0020] (2) The air outlets are arranged in a triangular pattern to form a multi-angle airflow coverage around the cable circumference, effectively eliminating the blind spot of blowing and achieving uniform and thorough removal of moisture from the entire circumference of the cable surface; and the triangular structure has a good airflow convergence and guiding effect, enhancing the airflow impact force and shearing effect, and accelerating the moisture stripping speed.

[0021] (3) The height-adjustable screw is used as the telescopic rod, which has the advantages of high transmission accuracy, strong load-bearing capacity and stable operation. It can adapt to different extruder outlet heights and significantly improve the equipment's versatility and adaptability. At the same time, the screw is wear-resistant and has a long service life, which helps to reduce maintenance costs and improve the overall reliability of the equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this application.

[0023] In the diagram, 1 is the support base; 10 is the extension frame; 100 is the telescopic rod; 11 is the telescopic switch; 110 is the gas flow pipe; 2 is the telescopic mechanism; 20 is the clamping block; 21 is the driving component; 22 is the opening and closing rod; 3 is the air blowing mechanism; 30 is the air blowing pipe; 31 is the air blowing port; 4 is the pressurization mechanism; 40 is the air pressure regulating valve; and 41 is the air pressure gauge. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0026] like Figure 1 As shown, this utility model discloses a pressurized, retractable extruder blowing device, which includes a support base 1, a telescopic mechanism 2, an air blowing mechanism 3, and a pressurizing mechanism 4.

[0027] The telescopic mechanism 2 is movably positioned above the support base 1 and its height difference with the support base 1 can be adjusted. The movable end of the telescopic mechanism 2 is connected to at least one pair of clamping blocks 20 that can be opened and closed relative to each other. The clamping blocks 20 can be close to or away from the support base 1. The pressurizing mechanism 4 is connected to the support base 1. The pressurizing mechanism 4 includes a pressure regulating valve 40, which is connected to an external compressed air machine and connected to the blowing mechanism 3. One end of the blowing mechanism 3 is connected to the clamping block 20, and the other end is connected to the pressure regulating valve 40. When the cable extruded by the external extruder passes through the clamping block 20, the blowing pressure of the blowing mechanism 3 is adjusted by the pressure regulating valve 40 to blow away the moisture on the surface of the cable.

[0028] like Figure 1 As shown, this embodiment is installed after the extruder cooling water tank. Since the cable end is tied with a traction rope after being sent out and has a large outer diameter, the clamping blocks 20 in the retracted state (i.e., the two clamping blocks 20 are close to each other) cannot allow the cable to pass through. This embodiment, by setting an adjustable height telescopic mechanism 2 and an openable clamping block 20, can adapt to extruder cables of different diameters and operating heights, improving the versatility and installation flexibility of the device. As the air blowing mechanism 3 is connected to the pressurizing mechanism 4 and connected to external compressed air, the air pressure can be precisely controlled by the air pressure regulating valve 40 in the pressurizing mechanism 4. This allows the air blowing mechanism 3 to dynamically adjust the airflow intensity according to the moisture content of the cable surface until there is no water on the surface of the cable product, effectively improving the water blowing efficiency and avoiding the problems of incomplete water removal due to insufficient air pressure or cable vibration or even damage due to excessive air pressure. This achieves efficient, stable and controllable online water blowing operation.

[0029] The air blowing mechanism 3 includes an air blowing pipe 30 and at least one set of air blowing ports 31. The air blowing ports 31 are located inside the clamping block 20. One end of the air blowing pipe 30 is connected to the air blowing port 31, and the other end is connected to the air pressure regulating valve 40.

[0030] like Figure 1 As shown, based on the above structure, the air blowing mechanism 3 adopts a structure in which the air blowing pipe 30 is connected to the air blowing port 31 located inside the clamping block 20. This allows compressed air to be precisely introduced into the air blowing port 31 inside the clamping block 20 via the air blowing pipe 30, achieving directional blowing of the cable surface. This integrated design reduces air path connection nodes, lowers the risk of air leakage, and improves gas transmission efficiency and system sealing. At the same time, embedding the air blowing port 31 inside the clamping block 20 helps to reduce the overall size of the device, enhance structural compactness, and avoid the safety hazards caused by exposed external air pipes. In addition, the integrated design of the air blowing port 31 and the clamping block 20 facilitates later maintenance and cleaning, extending the service life of the device.

[0031] The air blowing port 31 is triangularly positioned to surround and blow the circumferential surface of the cable.

[0032] Preferably, in this embodiment, the air inlets 31 are arranged in two groups (i.e., air inlets 31 at the upper and lower inlet positions). The air blowing direction of the air inlets 31 is set in a triangular layout, that is, multiple air inlets 31 are distributed in a triangle around the circumference of the cable, forming a surrounding air curtain that can fully cover the outer surface of the cable and effectively eliminate the blind spots caused by traditional single-sided or double-sided air blowing. This design significantly improves the uniformity and thoroughness of water removal, and is especially suitable for the need for rapid evaporation of moisture during high-speed extrusion. The triangular airflow layout can also form a local negative pressure zone around the cable, promoting the removal of moisture from the surface and further enhancing the drying efficiency. At the same time, the rationally distributed airflow avoids cable shaking or deviation caused by concentrated impact, ensuring the stable operation of the production line.

[0033] The telescopic mechanism 2 includes a drive member 21 and an opening / closing rod 22. The movable end of the drive member 21 is connected to the opening / closing rod 22, and the clamping block 20 is connected to the opening / closing rod 22 to control the distance between the two clamping blocks 20.

[0034] like Figure 1 As shown, when the driving component 21 moves the opening and closing rod 22, the opening and closing distance between the two clamping blocks 20 can be controlled, realizing the coiling and opening of the cable (it is worth noting that the clamping block 20 in this embodiment is mainly for the design of the air blowing port 31, and its coiling action will not affect the normal extrusion process of the cable). This mechanical transmission method is responsive and runs smoothly, preventing cable deviation or device vibration due to imbalance; at the same time, the driving component 21 in this embodiment is preferably driven by a cylinder, which improves the automation level of the entire line, reduces the frequency of manual intervention, and improves production efficiency and operational safety.

[0035] The top two side walls of the support base 1 are formed with extension frames 10, and telescopic rods 100 arranged in the vertical direction are movably connected to the extension frames 10. The drive unit 21 is connected to the telescopic rods 100.

[0036] like Figure 1 As shown, in this embodiment, extension frames 10 are provided on both sides of the support base 1, and vertical telescopic rods 100 are movably connected to the extension frames 10. With the installation of the aforementioned drive component 21, the telescopic rods 100 can be adjusted in height vertically, thereby driving the entire telescopic mechanism 2 and the clamping block 20 to move up and down. This structure achieves stepless adjustment of the overall height of the device, adapting to the cable exit height of different specifications and expanding the application range of the equipment. Simultaneously, the vertical guide structure enhances stability during lifting, preventing the clamping block 20 from swaying or tilting during adjustment, ensuring accurate clamping and positioning. The extension frames 10 are integrally formed with the base or firmly connected, improving the overall structural rigidity and enhancing vibration resistance.

[0037] A telescopic switch 11 is detachably connected to the support base 1, and the telescopic switch 11 is connected to the drive component 21. Preferably, the telescopic switch 11 and the drive component 21 are pneumatically connected (i.e., connected by an air pipe), allowing the operator to manually trigger the telescopic switch 11 to achieve automatic opening and closing control of the clamping block 20. The detachable design facilitates flexible configuration of the switch position according to on-site working conditions, meeting different operating habits or spatial layout requirements, improving human-machine interaction convenience, and enhancing the coordination and safety of production rhythm.

[0038] like Figure 1 As shown, in this embodiment, a threaded hole is also opened in the extension frame 10, and the telescopic rod 100 is assembled in it by a threaded connection. This connection method can maintain the position stability without additional locking device after adjustment, preventing height deviation caused by vibration. At the same time, the thread fit has high precision, the adjustment process is smooth and controllable, and the adjustment accuracy and reliability of the device are significantly improved.

[0039] Preferably, in this embodiment, the telescopic rod 100 is specifically designed as a height-adjusting lead screw. Utilizing the lead screw's excellent mechanical strength and precise linear transmission characteristics, the height of the clamping block 20 is accurately and smoothly adjusted. The lead screw structure has strong load-bearing capacity and wear resistance, allowing for long-term stable operation under heavy loads. This not only improves the device's adjustment accuracy and repeatability but also enhances the overall structural rigidity and durability, making it particularly suitable for complex industrial environments such as high temperature and high humidity.

[0040] like Figure 1 As shown, in this embodiment, a gas flow pipe 110 is added between the telescopic switch 11 and the air pressure regulating valve 40. The gas flow pipe 110 is used to guide the gas into the drive component 21, thereby realizing the control of the telescopic switch 11 on the opening and closing of the clamping block 20, and simultaneously controlling the opening and closing of the air pressure regulating valve 40. This avoids the waste of energy or the impact of airflow disturbance on cable operation caused by blowing air in advance when the clamping block 20 is not retracted, and also prevents the safety hazards caused by the continuous supply of air after the clamping is released.

[0041] The pressurization mechanism 4 also includes a pressure gauge 41, which is used to monitor the compressed air pressure in the air blowing pipe 30 so that the pressure regulating valve 40 can adjust the compressed air pressure at the air blowing port 31.

[0042] This embodiment adds a pressure gauge 41 to the pressurization mechanism 4 to monitor the compressed air pressure in the blowing pipe 30 in real time, providing operators with intuitive pressure feedback data. This facilitates precise adjustment of the air pressure value at the input blowing port 31 via the pressure regulating valve 40. This design achieves visualized and quantifiable control of the blowing pressure, helping to set optimal purging parameters based on different cable materials, wire diameters, and surface wettability, avoiding problems such as cable damage from excessive pressure or incomplete water removal from insufficient pressure. The addition of the pressure gauge 41 improves the scientific nature and stability of process control, ensuring consistent product quality, and also facilitates fault diagnosis and system maintenance.

[0043] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0045] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A pressurized, retractable extruder water blowing device, characterized in that, It includes a support base, a telescopic mechanism, an air blowing mechanism, and a pressurizing mechanism, among which: The telescopic mechanism is movably disposed above the support base and the height difference between it and the support base can be adjusted. The movable end of the telescopic mechanism is connected to at least one pair of clamping blocks that can be opened and closed relative to each other. The clamping blocks can be close to or away from the support base. The pressurizing mechanism is connected to the support base. The pressurizing mechanism includes a pressure regulating valve, which is connected to an external compressed air machine and is connected to the air blowing mechanism. One end of the air blowing mechanism is connected to the clamping block, and the other end is connected to the air pressure regulating valve. When the cable extruded by the external extruder passes through the clamping block, the air pressure of the air blowing mechanism is adjusted by the air pressure regulating valve to blow away the moisture on the surface of the cable.

2. The pressurized, retractable extruder water blowing device according to claim 1, characterized in that, The air blowing mechanism includes an air blowing pipe and at least one set of air blowing ports. The air blowing ports are located inside the clamping block. One end of the air blowing pipe is connected to the air blowing ports, and the other end is connected to the air pressure regulating valve.

3. The pressurized, retractable extruder water blowing device according to claim 1, characterized in that, The telescopic mechanism includes a driving member and an opening / closing rod. The movable end of the driving member is connected to the opening / closing rod, and the clamping block is connected to the opening / closing rod to control the distance between the two clamping blocks.

4. A pressurized, retractable extruder water blowing device according to claim 2, characterized in that, The air blowing port is arranged in a triangular shape to surround and blow the circumferential surface of the cable.

5. A pressurized, retractable extruder water blowing device according to claim 3, characterized in that, The top two side walls of the support base are formed with extension frames, and telescopic rods arranged in the vertical direction are movably connected to the extension frames. The driving component is connected to the telescopic rods.

6. A pressurized, retractable extruder water blowing device according to claim 3, characterized in that, A telescopic switch is detachably connected to the support base, and the telescopic switch is connected to the drive component.

7. A pressurized, retractable extruder water blowing device according to claim 5, characterized in that, The extension frame has a threaded hole, and the telescopic rod is threaded into the threaded hole.

8. A pressurized, retractable extruder water blowing device according to claim 5, characterized in that, The telescopic rod is a height-adjustable lead screw.

9. A pressurized, retractable extruder water blowing device according to claim 6, characterized in that, A gas flow pipe is also connected between the telescopic switch and the air pressure regulating valve.

10. A pressurized, retractable extruder water blowing device according to claim 2, characterized in that, The pressurization mechanism also includes a pressure gauge, which is used to monitor the compressed air pressure in the air blowing pipe so that the pressure regulating valve can adjust the compressed air pressure input to the air blowing port.

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