Round and square tube interchangeable noiseless packing device

Abstract

The utility model provides a round and square tube interchangeable noiseless packing device, a base is provided with a plurality of groups of clamping and limiting assemblies, the plurality of groups of clamping and limiting assemblies are arranged in parallel, each group of clamping and limiting assembly comprises two guide rollers, the two guide rollers are arranged oppositely, and a steel tube to be packed is placed between the two guide rollers. The lower end of each guide roller is installed on the base through a connecting clamping plate, a rotating shaft and a positioning bolt are arranged on the connecting clamping plate, the guide shafts can rotate relative to the connecting clamping plate through the rotating shafts, and the positioning bolts are used for locking and positioning the relative positions of the guide shafts and the connecting clamping plate. According to the noiseless packaging device capable of interchanging the round pipe and the square pipe, packaging of hot-dip galvanized round steel pipes can be conveniently changed into packaging of hot-dip galvanized square steel pipes only by adjusting the angles of the four supporting guide roller supports in the production process; the time for adjusting the device is saved, the labor intensity of maintenance workers is reduced, and the new-quality productivity of enterprises is improved.

Description

Technical Field

[0001] This utility model belongs to the field of steel pipe packaging, and in particular relates to a noiseless packaging device for interchangeable round and square pipes. Background Technology

[0002] As is well known, the hot-dip galvanized round and square steel pipes undergo the following process: degreasing and oil removal → water rinsing → pickling and rust removal → water rinsing → solvent coating → surface drying → hot-dip galvanizing → water cooling → chemical anti-white rust treatment → drying → quality inspection → packaging → warehousing. This series of processes completes the hot-dip galvanizing of square steel pipes. For many years, hot-dip galvanizing steel pipe companies have strived to develop new specifications and products, seeking new processes that allow a single hot-dip galvanizing production line to produce multiple specifications and varieties of hot-dip galvanized products. This aims to reduce fixed asset investment and equipment maintenance costs, achieving both rapid results and multi-functionality, ensuring both quality and increased output. However, in current domestic hot-dip galvanizing steel pipe (round pipe) companies, the equipment used in the final packaging process on production lines can only package hot-dip galvanized round steel pipes, not hot-dip galvanized square (rectangular) steel pipes for subsequent warehousing; or it can only package hot-dip galvanized square steel pipes, not hot-dip galvanized round pipes. Therefore, a single hot-dip galvanizing production line cannot achieve the function of packaging multiple specifications and varieties in a noise-free manner.

[0003] Domestic hot-dip galvanizing companies have made great efforts and explorations to address the technical challenge of a single production line being unable to package round and square steel pipes for multiple purposes and achieve noise-free operation after hot-dip galvanizing. They have been conducting research and technical breakthroughs and have listed this as a technical problem that urgently needs to be solved. Summary of the Invention

[0004] In view of this, the present invention aims to propose a noiseless packaging device for interchangeable round and square tubes, so as to solve the problem that the existing technology requires different packaging devices when dealing with the packaging needs of round and square tubes, resulting in high equipment investment costs and large space occupation.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A noiseless packaging device for interchangeable round and square tubes includes a base with multiple sets of clamping and limiting components arranged parallel to each other. Each set of clamping and limiting components includes two guide rollers facing each other, with the space between the two guide rollers used to place the steel tube to be packaged. The lower end of each guide roller is mounted to the base via a connecting clamp plate, and the connecting clamp plate is provided with a rotating shaft and a positioning bolt. The guide shaft can rotate relative to the connecting clamp plate via the rotating shaft, and the positioning bolt is used to lock the relative position between the positioning guide shaft and the connecting clamp plate.

[0007] Furthermore, the connecting clamp is provided with an opening groove, a connecting plate is installed at one end of the guide shaft, and the connecting clamp is provided with a first through hole and a second through hole. A rotating shaft is sleeved in the first through hole, and the connecting plate is rotatably connected to the opening groove through the rotating shaft. A positioning bolt is provided in the second through hole, and the positioning bolt can fix the relative position of the connecting plate in the opening groove.

[0008] Furthermore, the connecting plate is provided with a rotating hole and two positioning holes, the rotating shaft is sleeved in the rotating hole, and the positioning bolt can be inserted into the second through hole and one positioning hole.

[0009] Furthermore, the rotating hole and the two positioning holes are arranged in a triangular outline, and the angle between the line connecting the axes of the first through hole and the second through hole and the horizontal is 45 degrees.

[0010] Furthermore, a noise-reducing roller shaft is fixedly sleeved around the periphery of each guide roller.

[0011] Furthermore, the noise reduction roller is made of MC nylon.

[0012] Compared with the prior art, the noiseless packaging device for interchangeable round and square tubes described in this utility model has the following advantages:

[0013] During production, only the angles of the four supporting guide roller brackets need to be adjusted to easily change the packaging of hot-dip galvanized round steel pipes to hot-dip galvanized square steel pipes; this saves the time of adjusting the device, reduces the labor intensity of maintenance workers, and improves the enterprise's new quality productivity.

[0014] By installing MC nylon sleeves with high strength, the ability to withstand high loads for a long time, sound absorption and vibration reduction, wear resistance and self-lubrication on the support of the steel pipe packaging bracket, the noise pollution caused by collisions in the steel pipe galvanizing industry has been solved. Through on-site testing, the noise caused by the automatic discharge of steel pipes by the steel pipe robot is 45 decibels (dB). Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0016] Figure 1 This is a structural diagram of a noiseless packaging device for interchangeable round and square tubes as described in this utility model embodiment, applied to the packaging of round tubes.

[0017] Figure 2 This is a structural diagram of a noiseless packaging device for interchangeable round and square tubes as described in this utility model embodiment, applied to the packaging of square tubes.

[0018] Figure 3 This is a cross-sectional schematic diagram of the connection clamp and guide roller cooperation described in an embodiment of the present utility model;

[0019] Figure 4 This is a side view of the connecting clamp plate described in an embodiment of the present utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the cooperation between the guide roller and the noise-reducing roller described in an embodiment of the present utility model;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1-Base; 2-Guide roller; 3-Rotating shaft; 4-Positioning bolt; 5-Connecting clamp; 51-Opening slot; 52-First through hole; 53-Second through hole; 6-Connecting plate; 61-Rotating hole; 62-Positioning hole; 7-Noise reduction roller shaft; 8-Round tube; 9-Square tube. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] To address the technical challenges faced by existing hot-dip galvanizing steel pipe enterprises in production, such as the inability to use a single machine for multiple purposes and the need for noise reduction, this invention provides a device capable of packaging both round and square (rectangular) galvanized steel pipes without noise. This completely solves the technical difficulty of packaging both round and square hot-dip galvanized steel pipes on the same device without generating noise. It not only saves on equipment investment but also does not increase workshop floor space. Through technical design and improvements to the existing system, the packaging process for both round and square hot-dip galvanized steel pipes is now completed using the original single packaging equipment, improving work efficiency. The use of new materials enables noiseless packaging operations, creating a noise-free working environment.

[0028] like Figures 1-5 As shown, a noiseless packaging device for interchangeable round and square tubes includes a base 1. Multiple sets of clamping and limiting components are arranged parallel to each other on the base 1. Each set of clamping and limiting components includes two guide rollers 2, which are arranged opposite each other. The space between the two guide rollers 2 is used to place the steel tube to be packaged. The lower end of each guide roller 2 is mounted to the base 1 via a connecting clamp 5. A rotating shaft 3 and a positioning bolt 4 are provided on the connecting clamp 5. The guide shaft can rotate relative to the connecting clamp 5 via the rotating shaft 3, and the positioning bolt 4 is used to lock the relative position between the positioning guide shaft and the connecting clamp 5. The following description uses φ89 galvanized round steel tubes with specifications of φ89×6000×2.75 (mm) and galvanized square steel tubes with specifications of F30×6000×3.0 (mm) as examples.

[0029] The packaging device used has a common base 1, and a clamping and limiting component with an adjustable tilt angle is provided on the common base 1. There are 3 to 4 sets of clamping and limiting components. Each set of clamping and limiting components includes two guide rollers 2, which are arranged opposite to each other and installed on both sides of the common base 1.

[0030] A flat rectangular connecting plate 6 is provided at one end of the guide roller 21. The thickness of the connecting plate 6 is 29±0.50mm, and the connecting plate 6 is 200×200 (mm). Three holes with a diameter of φ24~φ30mm are provided in the connecting plate 6, one of which is a rotation hole 61, and the other two are positioning holes 62.

[0031] Six guide rollers 2 are movably connected to the open connecting clamp 5. The connecting clamp 5 is made of Q420B alloy structural steel and has two holes with a diameter tolerance of +0.5~1.0mm (φ24~φ30mm). One hole is a first through hole 52, and the other is a second through hole 53. A rotating shaft 3 is fitted inside the first through hole 52, and the connecting plate 6 is rotatably connected to the open slot 51 via the rotating shaft 3. A positioning bolt 4 is installed in the second through hole 53 to fix the relative position of the connecting plate 6 in the open slot 51. The connecting clamp 5 and the base 1 are fixedly connected by submerged arc welding. The weld should be firm and free of sand holes and porosity defects.

[0032] The connecting clamp 54 has a left-right symmetrical structure. The angle between the first through hole 52 and the second through hole 53 in the plane position is 45°. This 45° angle is a preferred angle to control the maximum opening distance of the steel pipe in the regular pentagon when the round hot-dip galvanized steel pipe is packaged.

[0033] A tube of MC nylon (Monomer Casting Nylon) is used on the circumferential surface of the support guide roller 2 to securely wrap around the circumference of the support guide roller 2. The wrapping method is that the MC nylon sleeve and the guide roller 2 are fitted with an interference fit.

[0034] The MC nylon sleeve has advantages such as high strength, ability to withstand high loads for a long time, sound absorption and vibration reduction, wear resistance, and good self-lubricating properties. It can prevent the galvanized layer on the surface of the galvanized round steel pipe and galvanized square steel pipe from being worn by the support guide roller 2, and at the same time extend the service life of the guide roller 2. During installation, the MC nylon is first processed into a cylindrical shape with an inner diameter equal to the outer diameter of the support guide roller 2. After being immersed in machine oil at 150℃ for 40 minutes, it is taken out and quickly wrapped directly onto the outer surface of the guide roller 2. This ensures that no noise is generated when the steel pipe collides with the guide roller 2, reducing the noise level to below 45 decibels (dB). At the same time, it improves the wear resistance and service life of the guide roller 21.

[0035] The connection between the support guide roller 2 and the open connecting clamp 5 is a movable connection. A rotating shaft 3 passes through a rotating hole 61 with a diameter of φ24~φ30mm. To achieve wear resistance and a long service life, the rotating shaft 3 is made of Q345 steel and has a diameter of φ24~φ30mm. It is locked with a cotter pin to prevent movement. The rotating shaft 3 and the hole have a clearance fit, allowing the support guide roller 2 to open at 90° in a "V" shape. After opening in the "V" shape, round galvanized steel pipes can be easily inserted and arranged tightly without gaps.

[0036] When packaging hot-dip galvanized round steel pipes on a hot-dip galvanizing production line, it is necessary to first adjust the "V"-shaped clamping method of the three pairs of six supporting guide rollers for packaging the round steel pipes. The specific implementation method is as follows: The three to four sets (pairs) of supporting guide rollers are all arranged in a "V" shape on the steel pipe placement rack. After the positioning holes 62 at the bottom of the supporting guide rollers 2 correspond to the second through holes 53 on the open connecting clamp plate 5, a φ24 positioning bolt 4 is used to pass through and then locked at one end with a cotter pin. In this way, all three sets of supporting guide rollers 21 form a "V"-shaped structure, allowing for the packaging process of the round galvanized steel pipes.

[0037] When hot-dip galvanizing square steel pipes on a hot-dip galvanizing production line, it is necessary to first adjust the clamping shape of the three sets of six supporting guide rollers 21 for packaging the square steel pipes. The specific implementation method is as follows: before the three sets of six supporting guide rollers 2 are closed, rotate them towards the center. Then, loosen the cotter pins at one end of the six positioning bolts 4 on the six supporting guide rollers 2, and remove the positioning bolts 4. This allows the six supporting guide rollers 2, arranged in pairs, to be placed vertically in a U-shape. At this time, the positioning hole 62 on the lowest plate of the supporting guide roller 2 corresponds precisely to the second lowest through hole 53 on the open connecting clamp plate 5. Figure 2 As shown, after the positioning hole 62 on the guide roller 2 corresponds to the second through hole 53 on the connecting clamp plate 5, it passes through the positioning bolt 4 and is then securely fixed with a round shaft pin and an open pin. In this way, the steel pipe can be packaged conveniently and neatly, thus achieving the purpose of "one machine for two uses". In this embodiment, the gap between the opening slots 51 between the open connecting clamp plates 5 is 30mm.

[0038] This interchangeable, noiseless packaging device is primarily used for packaging steel pipes after hot-dip galvanizing, facilitating long-term storage, long-distance transportation, and sales. It solves the long-standing problem that a single packaging rack on a hot-dip galvanizing production line could only package one type of galvanized steel pipe. For example, when producing round galvanized steel pipes, only round galvanized steel pipes could be packaged. However, if the production line switched to hot-dip galvanizing square steel pipes, the same packaging rack could not be used to package and store them. In other words, the galvanizing production line could no longer hot-dip galvanize square steel pipes, failing to meet production and market demands. It was also impractical to create a separate packaging device for square steel pipes, or to keep it as a backup.

[0039] Therefore, based on this actual situation, the present invention solves the above-mentioned production difficulties and achieves the goal of simultaneously meeting the packaging process of round steel pipes and square steel pipes after galvanizing on a single hot-dip galvanizing production line.

[0040] By installing MC nylon sleeves with high strength, the ability to withstand high loads for a long time, sound absorption and vibration reduction, wear resistance and self-lubrication on the support of the steel pipe packaging bracket, that is, on the circumferential surface of the support guide roller 2, the noise pollution caused by collisions in the packaging process of the steel pipe galvanizing industry has been solved. Through on-site testing, the noise caused by the automatic discharge of steel pipes by the steel pipe robot is 45 decibels (dB).

[0041] During production, only the angles of the four support guide rollers and brackets need to be adjusted to easily change the packaging of hot-dip galvanized round steel pipes to hot-dip galvanized square steel pipes; this saves the time of adjusting the device, reduces the labor intensity of maintenance workers, and improves the enterprise's new quality productivity.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 noiseless packaging device for interchangeable round and square tubes, characterized in that: Includes a base (1), on which multiple sets of clamping and limiting components are provided, and the multiple sets of clamping and limiting components are arranged in parallel to each other. Each set of clamping and limiting components includes two guide rollers (2), which are arranged opposite to each other, and the space between the two guide rollers (2) is used to place the steel pipe to be packaged. The lower end of each guide roller (2) is installed on the base (1) through a connecting clamp (5), and a rotating shaft (3) and a positioning bolt (4) are provided on the connecting clamp (5). The guide shaft can rotate relative to the connecting clamp (5) through the rotating shaft (3), and the positioning bolt (4) is used to lock the relative position between the positioning guide shaft and the connecting clamp (5).

2. The noiseless packaging device for interchangeable round and square tubes according to claim 1, characterized in that: The connecting clamp (5) has an opening groove (51), and a connecting plate (6) is installed at one end of the guide shaft. The connecting clamp (5) has a first through hole (52) and a second through hole (53). A rotating shaft (3) is fitted inside the first through hole (52). The connecting plate (6) is rotatably connected to the opening groove (51) through the rotating shaft (3). A positioning bolt (4) is installed inside the second through hole (53). The positioning bolt (4) can fix the relative position of the connecting plate (6) in the opening groove (51).

3. The noiseless packaging device for interchangeable round and square tubes according to claim 2, characterized in that: The connecting plate (6) is provided with a rotating hole (61) and two positioning holes (62). The rotating shaft (3) is sleeved in the rotating hole (61), and the positioning bolt (4) can be inserted into the second through hole (53) and one positioning hole (62).

4. The noiseless packaging device for interchangeable round and square tubes according to claim 3, characterized in that: A rotating hole (61) and two positioning holes (62) are arranged in a triangular outline, and the angle between the axis connecting the first through hole (52) and the second through hole (53) and the horizontal is 45 degrees.

5. The noiseless packaging device for interchangeable round and square tubes according to claim 1, characterized in that: A noise reduction roller shaft (7) is fixedly sleeved around the periphery of each guide roller (2).

6. A noiseless packaging device for interchangeable round and square tubes according to claim 5, characterized in that: The noise reduction roller (7) is made of MC nylon.

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