Continuous galvanizing press dryers for multiple steel strips

Abstract

The utility model relates to the technical field of wringing roller, disclose multiple steel band continuous galvanization wringing roller, including bearing seat and multiple mounting seat, multiple mounting seat inside all rotationally arranged with connecting ring, bearing seat inside rotationally arranged with drive shaft, drive shaft and multiple connecting ring inside all are provided with the mounting groove of penetration, multiple mounting groove inside all are provided with connecting shaft, multiple mounting seat one side all are provided with multiple bearing bodies, multiple bearing bodies all include rubber coating and inner race, rubber coating lower end fixedly provided with outer race. In the utility model, the revolution of connecting shaft and the rotation of bearing body make each bearing body can independently adjust the rotation speed according to the running speed of corresponding steel band, even if the speed difference of multiple steel bands is big, can also avoid the problem of steel band skidding and uneven wringing pressure caused by speed mismatch, and further ensure that the wringing effect of all steel bands is consistent.

Description

Technical Field

[0001] This utility model relates to the field of extrusion roll technology, and in particular to a multi-strip continuous electro-galvanized extrusion roll. Background Technology

[0002] In modern industrial production, packaging steel strips have become a core material in the logistics packaging field due to their excellent load-bearing capacity and superior durability. They provide crucial protection for the safety of goods during long-distance transportation and warehousing. First, wide steel plates need to be precisely cut into narrow strips that meet specifications through a high-precision slitting process. Then, these strips will enter the electro-galvanizing stage, where the surface coating treatment improves the material's corrosion resistance and appearance. In this series of continuous and high-precision production chains, the squeeze roller, as a core auxiliary component, provides important support for the smooth production process and stable product quality.

[0003] Most existing squeeze rollers adopt an integral cylindrical working roller surface, which has a simple structure and is only suitable for working conditions where a single steel strip or all steel strips run at the same linear speed. In this mode, the roller surface and the steel strip maintain synchronous rolling contact and can achieve a basic squeezing effect. However, in actual production, especially when wide steel strips are longitudinally cut into multiple narrow strips and then electro-galvanized in parallel, the running speed of each steel strip often varies due to differences in tension adjustment, process section, or equipment response. Since the entire roller surface is a rigid integral structure, all contact areas must rotate at the same speed. When the speed of a certain steel strip is higher or lower than the linear speed of the roller surface, relative slippage will inevitably occur, resulting in scratches on the steel strip surface, tension imbalance, and even the risk of strip breakage.

[0004] Therefore, those skilled in the art have provided multiple continuous electro-galvanized steel strip extrusion rolls to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-strip continuous electro-galvanized squeeze roller. Through the revolution of the connecting shaft and the rotation of the bearing body, each bearing body can autonomously adjust its rotation speed according to the running speed of the corresponding steel strip. Even if the speeds of multiple steel strips differ greatly, it can avoid the problems of steel strip slippage and uneven squeeze pressure caused by speed mismatch, thereby ensuring that the squeeze effect of all steel strips is consistent.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A continuous electro-galvanized extrusion roll for multiple steel strips includes a bearing housing and multiple mounting seats. Each mounting seat has a connecting ring rotatably disposed inside. Each bearing housing has a drive shaft rotatably disposed inside. Each drive shaft and each of the multiple connecting rings has a mounting groove passing through it. Each of the multiple mounting grooves has a connecting shaft disposed inside it.

[0008] Multiple bearing bodies are provided on one side of each of the multiple mounting bases. Each of the multiple bearing bodies includes a rubber coating layer and an inner ring. An outer ring is fixedly provided at the lower end of the rubber coating layer. Multiple balls are slidably arranged between the outer ring and the inner ring. Protective rings are provided on both sides of each of the multiple bearing bodies.

[0009] Furthermore, multiple fixing blocks are fixedly disposed on both sides of the outer surface of the multiple connecting shafts, and the exterior of the multiple fixing blocks are respectively disposed inside multiple mounting slots.

[0010] Furthermore, the inner ring is fixedly disposed inside the outer surface of the connecting shaft, and the multiple protective rings are respectively fixedly disposed inside each pair of the multiple connecting shafts on the outer surface.

[0011] Furthermore, the adhesive layer and the outer ring are rotatably disposed between each pair of multiple protective rings, and the opposite sides of each pair of multiple protective rings are disposed between each pair of multiple mounting seats.

[0012] Furthermore, the plurality of connecting shafts and the plurality of mounting slots are coaxial, and the plurality of connecting shafts and the drive shaft are coaxial.

[0013] Furthermore, the overlay layer is made of neoprene rubber, and the outer ring is made of polyetheretherketone (PEEK).

[0014] Furthermore, the ball bearing is made of ceramic material, and the inner ring is made of polyoxymethylene material.

[0015] This utility model has the following beneficial effects:

[0016] The present invention proposes a multi-strip continuous electro-galvanized squeeze roller. During the production process, an external drive device drives the drive shaft to rotate inside the bearing housing. The mounting groove inside the drive shaft drives the internal fixed block and connecting shaft to rotate, thereby causing multiple connecting shafts to synchronously drive their external bearing bodies to rotate. Furthermore, each steel strip corresponds to an independent set of bearing bodies. When the steel strip passes through the squeeze roller at a specific linear speed, its surface contacts the rubber coating layer of the bearing body and generates friction, thereby driving the rubber coating layer and the outer ring to rotate independently around the inner ring. This causes the inner ring connecting shaft to revolve at a uniform speed, and the outer ring will autonomously adjust its rotation speed according to the actual running speed of the corresponding steel strip to achieve real-time speed matching, thus ensuring production continuity and quality. Attached Figure Description

[0017] Figure 1This is an isometric schematic diagram of the entire utility model;

[0018] Figure 2 This is a partial exploded isometric view of the present invention near the bearing body;

[0019] Figure 3 This is a cross-sectional isometric view of the present invention near the connecting shaft;

[0020] Figure 4 This is a cross-sectional isometric view of the present invention close to the bearing body;

[0021] Figure 5 This utility model Figure 4 Enlarged diagram of point A in the diagram.

[0022] Legend:

[0023] 1. Drive shaft; 2. Bearing housing; 3. Bearing body; 4. Mounting base; 5. Connecting ring; 6. Mounting groove; 7. Fixing block; 8. Connecting shaft; 9. Protective ring; 301. Rubber coating layer; 302. Outer ring; 303. Ball bearing; 304. Inner ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-5 One embodiment provided by this utility model:

[0026] A continuous electro-galvanized extrusion roll with multiple steel strips includes a bearing housing 2 and multiple mounting seats 4. Each mounting seat 4 has a connecting ring 5 rotatably installed inside. The bearing housing 2 has a drive shaft 1 rotatably installed inside. The drive shaft 1 and the multiple connecting rings 5 ​​are all provided with mounting grooves 6. Each mounting groove 6 is provided with a connecting shaft 8 inside.

[0027] Multiple bearing bodies 3 are provided on one side of multiple mounting bases 4. Each bearing body 3 includes a rubber coating layer 301 and an inner ring 304. An outer ring 302 is fixedly provided at the lower end of the rubber coating layer 301. Multiple balls 303 are slidably provided between the outer ring 302 and the inner ring 304. Protective rings 9 are provided on both sides of the multiple bearing bodies 3.

[0028] Multiple fixing blocks 7 are fixedly installed on both sides of the outer surface of multiple connecting shafts 8. The outer sides of multiple fixing blocks 7 are respectively installed inside multiple mounting slots 6. The inner ring 304 is fixedly installed on the outer surface of the connecting shaft 8. Multiple protective rings 9 are fixedly installed on the outer surface of multiple connecting shafts 8 in pairs. The rubber layer 301 and the outer ring 302 are rotatably installed between pairs of multiple protective rings 9. The opposite sides of multiple protective rings 9 are respectively installed between pairs of multiple mounting seats 4. Multiple connecting shafts 8 and multiple mounting slots 6 are coaxial. Multiple connecting shafts 8 and drive shaft 1 are coaxial.

[0029] The outer layer 301 is made of neoprene rubber, the outer ring 302 is made of polyetheretherketone, the ball bearing 303 is made of ceramic, and the inner ring 304 is made of polyoxymethylene.

[0030] Specifically, during the synchronous production of multiple steel strips, the drive shaft 1 in the bearing seat of the external drive device generates rotational driving force. The connecting shaft 8 is rigidly engaged with the mounting groove 6 of the drive shaft 1 through the fixing block 7. The torque is transmitted through the coaxial design, so that all connecting shafts 8 obtain synchronous rotational power. At the same time, the connecting shaft 8 and the connecting ring 5 in the mounting seat 4 form a sliding fit through the mounting groove 6, forming a double guiding constraint to ensure that the connecting shaft 8 has no radial displacement during high-speed rotation. Finally, it drives the inner ring 304 of the bearing body 3 fixed to the connecting shaft 8 to form a stable orbital trajectory, providing continuous power output for the whole machine.

[0031] Furthermore, each steel belt corresponds to an independent bearing body 3, and the bearing bodies 3 do not interfere with each other when rotating. When the steel belt passes through at a specific speed, its surface forms contact friction with the rubber coating layer 301. This friction directly drives the rubber coating layer 301 and the fixedly connected outer ring 302 to rotate synchronously. Since the ceramic balls 303 between the outer ring 302 and the inner ring 304 adopt a rolling friction design, and the inner ring 304 maintains a constant revolution with the connecting shaft 8, the balls 303 form an autonomous rotation under the action of the compound friction force, thereby driving the outer ring 302 and the rubber coating layer 301 to complete independent rotation at a speed that matches the speed of the steel belt in real time. Through the compound motion mode of revolution and independent rotation, the speed difference of different steel belts can be dynamically compensated, fundamentally eliminating the relative sliding between the rubber coating layer 301 and the surface of the steel belt.

[0032] The protective rings 9 on both sides of the bearing body 3 are fixed to the connecting shaft 8 by the shaft shoulder, forming an axial limiting space and strengthening the overall strength. The protective rings 9 are mainly made of stainless steel with a polytetrafluoroethylene coating on their surface, which can form a physical barrier to prevent zinc plating liquid, pickling solution and some corrosive media from penetrating into the bearing, avoiding chemical corrosion of the balls 303, inner ring 304 and outer ring 302. They can also ensure a constant fit clearance between the balls 303 and the inner and outer rings 302. At the same time, the rigid connection between the mounting base 4 and the protective ring 9 forms an auxiliary support, further improving the radial stability of the bearing body 3 and reducing the vibration amplitude during high-speed operation.

[0033] The outer sheath 301 is made of neoprene rubber, which exhibits strong resistance to corrosion from common acids, alkalis, and salt solutions encountered during electroplating. It is resistant to swelling, cracking, or degradation, and can operate stably in humid environments rich in chemicals. Furthermore, it ensures a tight fit with the steel strip surface without causing deformation due to excessive compression. It evenly transmits squeezing pressure, effectively removing residual liquid from the steel strip surface. It also adapts to temperature fluctuations in the electroplating production line without experiencing a decrease in elasticity or hardening and embrittlement due to temperature changes. The outer ring 302 is made of polyetheretherketone (PEEK), which can withstand the radial extrusion force when multiple steel strips pass simultaneously, resisting deformation or breakage and ensuring the overall stability of the bearing structure. It is also resistant to strong acids, strong alkalis, and organic solvents. Excellent corrosion resistance ensures that it will not dissolve, crack, or degrade in the complex chemical environment of electroplating zinc. Furthermore, it exhibits minimal wear when mating with ceramic balls 303, and its own high hardness provides excellent wear resistance, reducing mechanical wear during long-term operation. It maintains stable geometric dimensions even under conditions of significant temperature variations, ensuring a constant clearance between the balls 303 and the inner ring 304, preventing changes in clearance from affecting bearing performance and avoiding material softening due to localized frictional heat. The ceramic balls 303 have a hardness far exceeding that of ordinary metals, resulting in minimal wear when in contact with the outer ring 302 and inner ring 304, maintaining spherical precision over a long period and ensuring smooth bearing rotation. Moreover, the ceramic material has high chemical stability and does not react with acids or alkalis. The reaction between the materials avoids corrosion caused by corrosive liquids in the electroplating zinc environment, and solves the problem of rusting easily in traditional metal ball bearings (303). The ceramic ball bearings (303) have a smooth surface, and when used with the polyetheretherketone outer ring (302) and polyoxymethylene inner ring (304), they reduce running resistance and energy loss, lower bearing heat generation, and can withstand extremely high radial pressure. They are not easily broken under conditions of simultaneous extrusion by multiple steel strips, ensuring reliable bearing operation. Furthermore, they do not generate electromagnetic interference and do not degrade due to electrolysis. The inner ring (304) is made of polyoxymethylene, which has a low coefficient of friction and good self-lubricating ability. When used with the ceramic ball bearings (303), frequent lubrication is not required, reducing maintenance. It also has good impact toughness and can withstand the impact of the ball bearings. The 303 material is resistant to pressure and impact, and is not prone to cracking or breakage. It also has a certain resistance to most organic solvents and acid and alkali media. It is not easily corroded in the electro-zinc plating environment, and can maintain structural stability. Moreover, it has high crystallinity and low shrinkage, and its dimensional changes are small when temperature and humidity change. It can ensure a tight fit with the connecting shaft 8 and a stable clearance with the ball 303. Furthermore, it is easy to precision machine, which can ensure the high precision of the inner ring 304 raceway, ensure the stable running trajectory of the ball 303, and reduce vibration and noise. Through the mutual matching and synergistic effect of the various layers of materials, it not only meets the requirements of corrosion resistance and wear resistance in the electro-zinc plating environment, but also ensures the running stability of the bearing and the squeezing effect, thus improving the overall performance and service life of the squeezing roller.

[0034] It should be noted that the connection process between the layers is a mature and publicly available technology, therefore, it will not be described in detail here. The fixing block 7 and the mounting groove 6 adopt a transition fit, and the outer surface of the fixing block 7 is nitrided, which can effectively reduce wear on the mating surfaces. At the same time, the inner wall of the mounting groove 6 is coated with a polytetrafluoroethylene lubricating coating to ensure that the connecting shaft 8 does not jam or radial runout during revolution, thereby ensuring overall operational stability. The mating point between the protective ring 9 and the outer ring 302 and the inner ring 304 adopts a lip seal structure. The sealing lip material is fluororubber, which can tightly fit the surfaces of the outer ring 302 and the inner ring 304 to form an effective seal. In addition, an annular oil reservoir is opened on the inner side of the protective ring 9. Built-in extreme pressure lithium-based grease provides continuous lubrication for the ball bearing 303 while achieving sealing, further improving the corrosion resistance and service life of the bearing body 3. The drive shaft 1 is connected to the output shaft of the external geared motor via a spline connection. All standard parts used in this application can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt mature existing technologies such as bolts, rivets, welding, and other conventional methods. Mechanical components, parts, and equipment adopt conventional models in the existing technology, so they will not be described in detail. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] Working principle: When producing multiple steel strips, the external drive device drives the drive shaft 1 inside the bearing housing 2 to rotate. Since the connecting shaft 8 is rigidly engaged with the mounting groove 6 of the drive shaft 1 through the fixing block 7, and the connecting shaft 8 and the drive shaft 1 are kept coaxial, the rotational force of the drive shaft 1 can be synchronously transmitted to all connecting shafts 8. At the same time, the connecting shaft 8 and the connecting ring 5 inside the mounting housing 4 cooperate through the mounting groove 6 to ensure that the connecting shaft 8 does not deviate during rotation. Finally, it drives the inner ring 304 of the bearing body 3 fixed to the connecting shaft 8 to make uniform revolution, providing power for the squeeze roller.

[0036] Secondly, each steel strip corresponds to a set of bearing bodies 3. When the steel strip passes through the squeeze roller at a specific speed, the surface of the steel strip comes into contact with the rubber coating layer 301 and generates friction, which in turn drives the outer ring 302 and the rubber coating layer 301 to rotate independently at a speed matching the speed of the steel strip, thereby adapting to the speed differences of different steel strips in real time. The protective ring 9 is fixed to the connecting shaft 8. The protective ring 9 can prevent the liquid generated during the electro-galvanizing process from seeping into the bearing. The cooperation between the mounting base 4 and the protective ring 9 can provide auxiliary support for the bearing body 3.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-strip continuous electro-galvanized extrusion roll, comprising a bearing housing (2) and multiple mounting seats (4), characterized in that: Each of the mounting bases (4) has a connecting ring (5) rotatably disposed inside, and a drive shaft (1) is rotatably disposed inside the bearing seat (2). The drive shaft (1) and the multiple connecting rings (5) are all provided with mounting grooves (6) through them, and each of the multiple mounting grooves (6) is provided with a connecting shaft (8). Multiple bearing bodies (3) are provided on one side of each of the multiple mounting bases (4). Each of the multiple bearing bodies (3) includes a rubber coating layer (301) and an inner ring (304). An outer ring (302) is fixedly provided at the lower end of the rubber coating layer (301). Multiple balls (303) are slidably arranged between the outer ring (302) and the inner ring (304). Protective rings (9) are provided on both sides of each of the multiple bearing bodies (3).

2. The multi-strip continuous electro-galvanizing extrusion roll according to claim 1, characterized in that: Multiple fixing blocks (7) are fixedly arranged on both sides of the outer surface of the multiple connecting shafts (8), and the multiple fixing blocks (7) are respectively arranged inside the multiple mounting slots (6).

3. The multi-strip continuous electro-galvanizing extrusion roll according to claim 1, characterized in that: The inner ring (304) is fixedly disposed on the outer surface of the connecting shaft (8), and the multiple protective rings (9) are fixedly disposed on the outer surface of the multiple connecting shafts (8) in pairs.

4. The multi-strip continuous electro-galvanizing extrusion roll according to claim 1, characterized in that: The adhesive layer (301) and the outer ring (302) are respectively rotatably disposed between each pair of multiple protective rings (9), and the opposite sides of each pair of multiple protective rings (9) are respectively disposed between each pair of multiple mounting seats (4).

5. The multi-strip continuous electro-galvanizing extrusion roll according to claim 1, characterized in that: The multiple connecting shafts (8) and the multiple mounting slots (6) are coaxial, and the multiple connecting shafts (8) and the drive shaft (1) are coaxial.

6. The multi-strip continuous electro-galvanizing extrusion roll according to claim 1, characterized in that: The overlay layer (301) is made of neoprene rubber, and the outer ring (302) is made of polyetheretherketone.

7. The multi-strip continuous electro-galvanizing extrusion roll according to claim 1, characterized in that: The ball bearing (303) is made of ceramic material, and the inner ring (304) is made of polyoxymethylene material.

Images