Cold water tank pulley guide wire device

Abstract

This utility model discloses a cold water tank pulley guiding device, relating to the technical field of chemical fiber production equipment. It includes a cold water tank with a pulley shaft at the bottom. A polytetrafluoroethylene (PTFE) pulley is rotatably mounted on the pulley shaft via a full ceramic bearing. The PTFE pulley has multiple wire guide grooves on its sidewall. The use of the PTFE pulley and full ceramic bearing effectively avoids the problem of traditional metal bearings easily corroding and jamming in cold water environments, improving the stability and service life of the device. Simultaneously, the multiple wire guide grooves on the sidewall of the PTFE pulley make the monofilament guiding process smoother, improving the dragging and jamming phenomenon during the production of soft monofilaments, ensuring the smooth passage of monofilaments through the cold water tank, and guaranteeing a stable cooling rate for the monofilaments, thereby improving the appearance and performance uniformity of the finished product.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical fiber production equipment, specifically to a cold water tank pulley guide device. Background Technology

[0002] Currently, the cold water bath guiding device in monofilament production equipment is a fixed nylon guiding device. During use, it was found that when producing soft monofilaments, the monofilaments experience jamming as they pass through the guide rollers. This jerking causes fluctuations in the monofilament cooling rate, resulting in diameter deviations in the finished product and uneven appearance and performance. Furthermore, traditional metal bearings are prone to corrosion and seizing in cold water environments. Therefore, we propose a cold water bath pulley guiding device. Utility Model Content

[0003] The purpose of this invention is to solve the problem that when producing soft monofilaments, the monofilaments may get stuck when passing through the guide rollers. This stuttering causes fluctuations in the cooling rate of the monofilaments, resulting in diameter deviations in the finished products and uneven appearance and performance. Furthermore, traditional metal bearings are prone to corrosion and jamming in cold water environments. This invention provides a cold water tank pulley guide device for monofilaments.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A cold water tank pulley wire guide device includes a cold water tank, a pulley shaft is provided at the bottom of the cold water tank, a polytetrafluoroethylene pulley is rotatably mounted on the pulley shaft via a full ceramic bearing, and multiple wire ring grooves are provided on the side wall of the polytetrafluoroethylene pulley.

[0006] Furthermore, a tilting frame is rotatably installed on both sides of the bottom of the cold water tank, and a pulley shaft is installed at both ends of the tilting frame. A torque sensor and a tilting motor are respectively installed on the outer side wall of the cold water tank corresponding to the outer ends of the two rotating shafts on both sides of the tilting frame. The torque sensor is electrically connected to the driver of the tilting motor.

[0007] Furthermore, the rotating shaft of the tilting frame is fixedly installed to the side wall of the cold water tank via a ceramic thrust bearing.

[0008] Furthermore, a double-seal structure is installed at the junction of the outer end of the rotating shaft of the tilting frame and the side wall of the cold water tank. The double-seal structure includes an inner labyrinth seal and an outer lip seal ring.

[0009] Furthermore, the inner ring of the all-ceramic bearing and the ceramic thrust bearing is made of zirconia ceramic, while the outer ring and balls are made of silicon carbide ceramic.

[0010] Furthermore, the surface treatment of the polytetrafluoroethylene pulley includes a bottom layer of Ra 1.6μm sandblasting, a middle layer of plasma-deposited diamond-like carbon film, and a surface coating of 50μm thick polyetheretherketone.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model effectively avoids the problem of traditional metal bearings easily corroding and seizing in cold water environments by using PTFE pulleys and all-ceramic bearings, thus improving the stability and service life of the device. Simultaneously, the multiple wire guide grooves on the side wall of the PTFE pulley make the monofilament guiding process smoother, improving the dragging and jamming phenomenon during the production of soft monofilaments, ensuring the smooth passage of monofilaments through the cold water tank, and guaranteeing a stable cooling rate for the monofilaments, thereby improving the appearance and performance uniformity of the finished product.

[0013] 2. The torque sensor of this utility model is used to monitor the torque change of the flipping frame in real time during the rotation process. When jamming occurs during the wire guiding process, the angle of the flipping frame can be adjusted in time by the flipping motor to avoid single wire jamming, thereby ensuring the stable wire guiding and cooling effect of the single wire and improving the automation level and practicality of the device. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention;

[0015] Figure 2 This is a front sectional view of the present invention;

[0016] Figure 3 This is a top view of the present invention;

[0017] Figure 4 This is a side sectional view of the present invention.

[0018] Reference numerals in the attached diagram: 1. Cold water tank; 2. Pulley shaft; 3. PTFE pulley; 4. All-ceramic bearing; 5. Tilting frame; 6. Torque sensor; 7. Tilting motor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] Please see Figure 1 - Figure 4 This utility model provides a cold water tank pulley wire guide device, including a cold water tank 1, a pulley shaft 2 is provided at the bottom of the cold water tank 1, a polytetrafluoroethylene pulley 3 is rotatably mounted on the pulley shaft 2 through a full ceramic bearing 4, and a plurality of wire ring grooves are provided on the side wall of the polytetrafluoroethylene pulley 3.

[0021] Working principle and usage process of this utility model:

[0022] In use, the monofilament is guided through the wire ring groove of the PTFE pulley 3 and then discharged. The produced monofilament is then cooled by the cold water in the cold water tank 1. The PTFE pulley 3 and the all-ceramic bearing 4 effectively avoid the problem of corrosion and jamming that occurs with traditional metal bearings in a cold water environment, improving the stability and service life of the device. Simultaneously, the multiple wire ring grooves on the side wall of the PTFE pulley 3 make the monofilament guidance process smoother, improving the dragging and jamming phenomenon during the production of soft monofilaments, ensuring the smooth passage of the monofilament through the cold water tank, and guaranteeing a stable cooling rate, thereby improving the appearance and performance uniformity of the finished product.

[0023] A tilting frame 5 is rotatably mounted on both sides of the bottom of the cold water tank 1, and a pulley shaft 2 is installed at both ends of the tilting frame 5. A torque sensor 6 and a tilting motor 7 are respectively installed on the outer side wall of the cold water tank 1 corresponding to the outer ends of the rotating shafts on both sides of the tilting frame 5. The torque sensor 6 is electrically connected to the driver of the tilting motor 7. The torque sensor 6 is used to monitor the torque change of the tilting frame 5 in real time during the rotation process. When jamming occurs during the wire guiding process, the tilting motor 7 can be used to adjust the angle of the tilting frame 5 in time to avoid the single wire jamming, further ensuring the stable wire guiding and cooling effect of the single wire, and improving the automation level and practicality of the device.

[0024] The rotating shaft of the tilting frame 5 is fixedly installed to the side wall of the cold water tank 1 through a ceramic thrust bearing; the ceramic thrust bearing effectively improves the rotational stability and load-bearing capacity of the rotating shaft of the tilting frame 5, ensuring the long-term stable operation of the device.

[0025] A double-seal structure is installed at the junction of the outer end of the rotating shaft of the tilting frame 5 and the side wall of the cold water tank 1. The double-seal structure includes an inner labyrinth seal and an outer lip seal ring. This effectively avoids water leakage at the junction of the shaft and the side wall of the cold water tank, ensuring the dryness and cleanliness of the inside of the device, and further improving the service life and stability of the device. At the same time, the double-seal structure also reduces the risk of external impurities entering the device, ensuring the purity of the device and the quality of production.

[0026] The inner ring of the all-ceramic bearing 4 and the ceramic thrust bearing are made of zirconia ceramic, while the outer ring and balls are made of silicon carbide ceramic. The combined use of zirconia and silicon carbide ceramics significantly improves the bearing's wear resistance, corrosion resistance, and high-temperature resistance. The zirconia ceramic bearing inner ring possesses high strength and good toughness, capable of withstanding large radial and axial loads, ensuring the stability and reliability of the wire guide device during high-speed operation. The silicon carbide ceramic bearing outer ring and balls possess extremely high hardness and wear resistance, effectively resisting the erosion of coolant in the cooling water bath and extending the bearing's service life. Furthermore, the use of all-ceramic bearings greatly reduces heat generated by friction, further improving the device's heat dissipation performance and operating efficiency.

[0027] The surface treatment of the PTFE pulley 3 includes a bottom layer of Ra 1.6μm sandblasting, a middle layer of plasma-deposited diamond-like carbon film, and a surface coating of 50μm thick polyetheretherketone (PEEK). The bottom layer of Ra 1.6μm sandblasting increases the surface roughness of the PTFE pulley 3, improving the adhesion between the coating and the substrate. The middle layer of plasma-deposited diamond-like carbon film further enhances the surface hardness and wear resistance of the pulley, effectively resisting wear and scratches during the production process. The surface coating of 50μm thick PEEK provides good lubricity and corrosion resistance, further reducing the frictional resistance of the monofilament during the wire guiding process, ensuring stable wire guiding and smooth passage of the monofilament.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cold water tank pulley guide wire device, characterized in that: Includes a cold water tank (1), the bottom of which is provided with a pulley shaft (2), and a polytetrafluoroethylene pulley (3) is rotatably mounted on the pulley shaft (2) via a full ceramic bearing (4), and the side wall of the polytetrafluoroethylene pulley (3) is provided with multiple wire ring grooves.

2. The cold water tank pulley guide wire device according to claim 1, characterized in that: The bottom of the cold water tank (1) is rotatably mounted on both sides of a rotating frame (5), and both ends of the rotating frame (5) are equipped with pulley shafts (2). The outer side of the cold water tank (1) is respectively provided with a torque sensor (6) and a rotating motor (7) at the outer ends of the rotating shafts on both sides of the rotating frame (5). The torque sensor (6) is electrically connected to the driver of the rotating motor (7).

3. The cold water tank pulley guide wire device according to claim 2, characterized in that: The rotating shaft of the tilting frame (5) is fixedly installed to the side wall of the cold water tank (1) through a ceramic thrust bearing.

4. The cold water tank pulley guide wire device according to claim 3, characterized in that: The outer end of the rotating shaft of the flipping frame (5) is fitted with a double sealing structure at the junction with the side wall of the cold water tank (1). The double sealing structure includes an inner labyrinth seal and an outer lip seal ring.

5. The cold water tank pulley guide wire device according to claim 2, characterized in that: The inner ring of the all-ceramic bearing (4) and the ceramic thrust bearing is made of zirconia ceramic, and the outer ring and balls are made of silicon carbide ceramic.

6. The cold water tank pulley guide wire device according to claim 1, characterized in that: The surface treatment of the polytetrafluoroethylene pulley (3) includes a bottom layer of Ra 1.6μm sandblasting, a middle layer of plasma-deposited diamond-like carbon film, and a surface coating of 50μm thick polyether ether ketone.

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