Roller box device with anti-rust function
By passing dry anti-rust gas into the roller box device, it isolates air and moisture, and ensures the stable operation of the dryer group through multiple gas passages and control valves, the roll box of the pulling and straightening unit is solved in a humid environment. The problem of rust has achieved effective anti-rust effect and efficient operation process.
Patent Information
- Application Number
- CN202411675123.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-02-14
AI Technical Summary
The roller box in the existing bending straightening unit is prone to rust in humid environments, and the existing storage methods cannot effectively prevent rust, affecting the operating efficiency.
A roller box device with anti-rust function is designed. By passing the anti-rust gas dried by a dryer into the roller box, it isolates air and moisture, forms a positive pressure environment, and ensures that it is carried out through multiple gas passages and control valves. Stable operation of the dryer set.
Effectively prevent rust from rolls and roller boxes during storage, ensure the stability and reliability of anti-rust function, improve the working efficiency, and restore the adsorption performance of the desiccant through the heater, ensuring the effect of long-term use.
Smart Images
Figure CN119425330A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of roller box rust prevention, in particular to a roller box device with rust prevention function. Background Art
[0002] The key equipment for the straightening machine to achieve the straightening function is the tension roller group and the roller box (including the straightening roller). In the prior art, the straightening machine and the roller box (including the straightening roller) are made of alloy spring steel 50CrV4, which has high fatigue strength. However, since the Cr content of the material is only 0.8% to 1.1%, the anti-corrosion performance of the working roller and the intermediate roller is far inferior to that of stainless steel. Moreover, when the straightening machine is operated in a humid environment, especially in the environment of coastal cities, the roller box (including the straightening roller) is seriously corroded. It is difficult for the straightening machine and the roller box to obtain dry and constant temperature anti-corrosion conditions in the working production environment.
[0003] Even if the roller box is soaked in hydraulic oil, it still suffers from serious corrosion after a long storage time. The roller box soaked in hydraulic oil needs to be thoroughly cleaned and re-lubricated before it is put into use. It takes 8 hours to prepare each new roller box for use. This method of roller box storage can neither guarantee a good anti-rust effect nor affect the work efficiency. Summary of the invention
[0004] In order to overcome the above technical problems, the present application provides a roller box device with anti-rust function.
[0005] The roller box device with rust-proof function provided by the present invention adopts the following technical solution:
[0006] A roller box device with anti-rust function, comprising a roller box body, an air source and a dryer group; wherein the roller box body has an air inlet and an air outlet; a roller placing base and a roller box support seat are arranged in the roller box body; the roller placing base is used to place tensioning and straightening rollers; the roller box support seat is used to place the roller box; the air source, the dryer group and the air inlet are connected in sequence; the air source contains high-pressure anti-rust gas; the dryer group is arranged between the air source and the air inlet; the anti-rust gas released by the air source enters the air inlet after being dried by the dryer group, and then the gas and moisture in the roller box body are discharged through the air outlet.
[0007] Optionally, the dryer group includes at least two dryers; the dryer has a gas inlet and a gas outlet; the gas inlet of each dryer is connected to the gas source; the gas outlet of each dryer is connected to the gas inlet; a plurality of gas passages are formed between the gas source and the gas inlet; one of the dryers is provided on each gas passage; and a control valve is provided on each gas passage between the gas source and the gas inlet; the control valve is used to control the on-off of the gas passage in which it is located.
[0008] Optionally, the gas inlets of the dryers are connected to each other and then connected to the gas source; the gas outlets of the dryers are connected to the gas inlet.
[0009] Optionally, the flow area of the air inlet is larger than the flow area of the air outlet, so that the flow rate at the air inlet is larger than the flow rate at the air outlet, forming a positive pressure in the roller box body.
[0010] Optionally, the dryer includes a shell and a desiccant; the shell is connected to the air source and the air inlet; the desiccant is contained in the shell, and the desiccant includes one or more of molecular sieve, activated carbon, silica gel, and limestone.
[0011] Optionally, the desiccant is a molecular sieve; the dryer further comprises a heater; the heater is disposed on the outer shell and is used to heat the molecular sieve when the adsorption performance of the molecular sieve decreases, so as to restore the adsorption performance.
[0012] Optionally, the gas released by the gas source includes nitrogen, argon or carbon dioxide.
[0013] Optionally, the gas released by the gas source is nitrogen, and the gas source is a nitrogen pipe of a bright annealing furnace.
[0014] Optionally, a roller placing base and a roller box support seat are provided in the roller box body; the roller placing base is used for placing the tensioning and straightening rollers; and the roller box support seat is used for placing the roller box.
[0015] Optionally, the roller box body includes a box body and a box cover; the box cover is detachably arranged on the upper side of the box body, and is used to close the box body; a sealing ring is arranged between the box body and the box cover.
[0016] As described above, the roller box device with rust-proof function of the present invention has at least the following beneficial effects:
[0017] 1. By introducing rust-proof gas dried by a dryer into the roller box body, the air and moisture in the roller box body are isolated, thereby preventing the rollers and roller boxes from rusting during storage.
[0018] 2. Two parallel dryers are used as a dryer group to continuously dry the anti-rust gas entering the roller box body, ensuring the stability and reliability of the anti-rust function. The dryer is equipped with a heater. When the dryer uses molecular sieve as a desiccant, the molecular sieve can be heated to restore the adsorption performance of the molecular sieve whose adsorption performance has decreased due to long-term use.
[0019] 3. By taking in a large amount of air at the air inlet and exhausting a small amount of air at the air outlet, a positive pressure is formed in the roller box body, and a sealing ring is provided between the roller box body and the box cover to further prevent external air and moisture from entering the roller box body, thereby enhancing the anti-rust effect.
[0020] 4. Each gas passage can be controlled by a control valve, which facilitates the switching of gas passages and prevents the release of a large amount of anti-rust gas after opening the roller box body, thus avoiding accidents caused by temporary lack of oxygen for workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the gas flow of the roller box device with rust prevention function.
[0022] Figure 2 It is a schematic diagram of the roller box body structure.
[0023] Figure numerals: 1, roller box body; 11, box body; 2, box cover; 2, air source; 3, dryer; 31, gas inlet; 32, gas outlet; 4, air inlet; 5, air outlet; 6, control valve; 7, main valve. DETAILED DESCRIPTION
[0024] The following is an explanation of the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific embodiments, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or according to the conditions recommended by the manufacturers.
[0025] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.
[0026] Please refer to Figure 1 , 2 The present invention discloses a roller box device with anti-rust function, including a roller box body 1, an air source 2 and a dryer group. Among them, the roller box body 1 has an air inlet 4 and an air outlet 5. A roller placing base (not shown in the figure) and a roller box support seat (not shown in the figure) are arranged in the roller box body 1. The roller placing base is used to place the straightening roller. The roller box support seat is used to place the roller box. The air source 2, the dryer group and the air inlet 4 are connected in sequence. There is high-pressure anti-rust gas in the air source 2. The dryer group is arranged between the air source 2 and the air inlet 4. The anti-rust gas released by the air source 2 enters the air inlet 4 after being dried by the dryer group, and then the gas and moisture in the roller box body 1 are discharged through the air outlet 5.
[0027] The anti-rust gas released from the gas source 2 is first dried by the dryer group, and then enters the roll box body 1 through the air inlet 4. Under the impetus of the anti-rust gas, the air and moisture in the roll box body 1 are gradually discharged through the air outlet 5, thereby forming an environment suitable for storing rollers and roll boxes in the roll box body 1.
[0028] When the rollers and roller boxes are replaced, and when the tension and bending straightening machine is shut down for a long time, the rollers and roller boxes need to be placed in the roller box body 1 to prevent rust. The roller base and roller box support seat can reduce the damage of the rollers and roller boxes during storage. The shapes of the roller base and roller box can match the shapes of the tension and straightening rollers and roller boxes respectively.
[0029] Specifically, the role of the rust-proof gas is to replace the air, and at the same time, it does not react with the items stored in the roller box body 1. Therefore, the rust-proof gas should be an inactive gas. The rust-proof gas includes one or more of nitrogen, argon or carbon dioxide. In some other embodiments of the present invention, the rust-proof gas can also be a gas with rust-proof function such as hydrogen. In this embodiment, the rust-proof gas is nitrogen. Nitrogen has the advantages of good safety and low cost.
[0030] Correspondingly, the gas source 2 can be a gas cylinder, a gas pipeline or other gas storage or transmission facility. In the steel production process, nitrogen is often used as a gas to prevent oxidation, control pressure, and control the atmosphere in the furnace. Therefore, the nitrogen in the steel production process can be used as the nitrogen gas source 2.
[0031] Specifically in this embodiment, when the roller box with anti-rust function of the present invention is used for the anti-rust of the tension roller group and roller box of the bending and straightening machine, the bending and straightening machine performs bending and straightening on the workpieces produced in the bright annealing furnace, and the bright annealing furnace often uses nitrogen as a protective gas to prevent the workpiece from oxidation. Therefore, the gas source 2 in this embodiment is the gas pipeline of the bright annealing furnace, that is, a part of nitrogen is drawn from the gas pipeline of the bright annealing furnace as the anti-rust gas.
[0032] Please continue to refer to Figure 1 The dryer group includes at least two dryers 3. The dryer 3 has a gas inlet 31 and a gas outlet 32. The gas inlet 31 of each dryer 3 is connected to the gas source 2. The gas outlet 32 of each dryer 3 is connected to the gas inlet 4. A plurality of gas passages are formed between the gas source 2 and the gas inlet 4. A dryer 3 is provided on each gas passage. And a control valve 6 is provided between the gas source 2 and the gas inlet 31 on each gas passage. The control valve 6 is used to control the on-off of the gas passage in which it is located.
[0033] Specifically, when the dryer group includes only one dryer 3, and the function of the dryer 3 fails, the anti-rust gas passed into the roller box body 1 will contain more moisture, causing the rollers and roller boxes in the roller box body 1 to rust. Therefore, when the dryer group includes two dryers 3, one of the gas passages is used as the main gas passage, and the other gas passage is used as the backup gas passage. When the function of the dryer 3 in the main gas passage fails, the backup gas passage can be immediately switched to ensure the drying of the gas passed into the roller box body 1.
[0034] The control valve 6 on the gas passage can be used not only to switch the gas passage, but also to close the gas passage completely before opening the roller box body 1, to prevent a large amount of nitrogen from being released after opening the roller box body 1, causing temporary hypoxia of the workers and causing accidents.
[0035] In a preferred embodiment of the present invention, a main valve is further provided on the pipeline connected to the air inlet 4 after the two dryers 3 are connected in parallel, and the main valve 7 can be used to more conveniently control the on and off of the entire dryer group.
[0036] In addition, when the dryer 3 is far from the gas source 2 and the air inlet 4, the gas inlet 31 of each dryer 3 is connected to the gas source 2 through a separate pipeline, and the gas outlet 32 of each dryer 3 is connected to the air inlet 4 through a separate pipeline. Many pipelines need to be laid, which is not conducive to cost saving. Therefore, in a preferred embodiment of the present invention, the gas inlets 31 of each dryer 3 are connected to the gas source 2 after being connected to each other. The gas outlets 32 of each dryer 3 are connected to the air inlet 4 after being connected.
[0037] More specifically, the dryer 3 includes a housing and a desiccant. A gas inlet 31 and a gas outlet 32 are provided on the housing. The desiccant is contained in the housing, and the desiccant includes one or more of molecular sieve, activated carbon, silica gel, and limestone. In actual use, the desiccant can be selected according to parameters such as the type and flow rate of the anti-rust gas.
[0038] In this embodiment, the desiccant is selected from molecular sieves. Molecular sieves can still accommodate water molecules well at high temperatures above 230°C, so they can effectively dry the anti-rust gas. However, as the molecular sieve is used for a longer time, its surface will be blocked, resulting in a gradual decrease in adsorption capacity. When heated, the molecular sieve can release the adsorbate, accelerate the dissociation of water molecules, and thus restore the adsorption capacity.
[0039] Based on the above characteristics of the molecular sieve, the dryer 3 further includes a heater. The heater is arranged on the housing and is used to heat the molecular sieve when the adsorption performance of the molecular sieve decreases, so as to restore its adsorption performance.
[0040] In actual use, when the dryer group is working, the main gas passage is opened and the spare gas passage is closed. When the adsorption performance of the molecular sieve in the main gas passage decreases, the main gas passage is closed and the spare gas passage is opened so that the anti-rust gas can still be dried. At the same time, the heater of the dryer 3 on the main gas passage is turned on to heat the molecular sieve therein to restore its adsorption capacity. After running for a period of time, the spare gas passage is closed, the main gas passage is opened, and the heater of the dryer 3 on the spare gas passage is turned on. In this way, it can be ensured that the anti-rust gas can always be dried without being affected by the decrease in the adsorption performance of the molecular sieve.
[0041] Please refer to Figure 2 The roller box body 1 includes a box body 11 and a box cover 2. The box cover 2 is detachably arranged on the upper side of the box body 11, and is used to close the box body 11. The box cover 2 can be covered on the upper side of the box body 11 by snapping, or can be movably arranged on the upper side of the box body 11 by hinged manner. In some other embodiments of the present invention, the connection method of the box cover 2 and the box body 11 can also adopt other suitable connection methods. In order to ensure the sealing between the box body 11 and the box cover 2, a sealing ring is arranged between the box body 11 and the box cover 2.
[0042] When the air pressure in the roll box body 1 is lower than the outside air pressure, the outside air may still enter the roll box body 1 through the gap on the roll box body 1. In order to avoid this situation, the flow area of the air inlet 4 of the roll box body 1 is larger than the flow area of the air outlet 5, so that the flow at the air inlet 4 is larger than the flow at the air outlet 5, forming a positive pressure in the roll box body 1, even if the pressure in the roll box body 1 is always greater than the outside air pressure, thereby preventing the outside air and moisture from entering the roll box body 1, further ensuring the anti-rust performance of the roll box body 1.
[0043] Compared with the prior art, the roller box device with rust-proof function of the present invention has the following advantages:
[0044] 1. By introducing rust-proof gas dried by the dryer 3 into the roller box body 1, the air and moisture in the roller box body 1 are isolated, thereby preventing the rollers and roller boxes from rusting during storage.
[0045] 2. Two parallel dryers 3 are used as a dryer group, which can continuously dry the anti-rust gas introduced into the roller box body 1, ensuring the stability and reliability of the anti-rust function. The dryer 3 has a heater, and when the dryer 3 uses a molecular sieve as a desiccant, the molecular sieve can be heated, so that the molecular sieve whose adsorption performance has declined due to long-term use can recover its adsorption performance.
[0046] 3. By taking in a large amount of air at the air inlet 4 and letting out a small amount of air at the air outlet 5, a positive pressure is formed in the roller box body 1, and a sealing ring is provided between the roller box body 11 and the box cover 2 to further prevent external air and moisture from entering the roller box body 1, thereby enhancing the anti-rust effect.
[0047] 4. Each gas passage can be controlled to be on and off by the control valve 6, which facilitates the switching of the gas passages and prevents the release of a large amount of anti-rust gas after opening the roller box body 1, thereby avoiding accidents caused by temporary lack of oxygen for the workers.
[0048] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.
Claims
1. A roller box device with rust-proof function, characterized in that: It comprises a roller box body (1), an air source (2) and a dryer group; wherein: The roller box body (1) has an air inlet (4) and an air outlet (5); a roller placing base and a roller box support seat are arranged inside the roller box body (1); the roller placing base is used to place the straightening roller; the roller box support seat is used to place the roller box; The air source (2), the dryer group and the air inlet (4) are connected in sequence; The gas source (2) contains high-pressure anti-rust gas; the dryer group is arranged between the gas source (2) and the gas inlet (4); The anti-rust gas released by the gas source (2) enters the air inlet (4) after being dried by the dryer group, thereby causing the gas and moisture in the roller box body (1) to be discharged through the air outlet (5).
2. The roller box device with rust-proof function according to claim 1, characterized in that: The dryer group comprises at least two dryers (3); the dryers (3) have a gas inlet (31) and a gas outlet (32); The gas inlet (31) of each of the dryers (3) is in communication with the gas source (2); the gas outlet (32) of each of the dryers (3) is in communication with the gas inlet (4); A plurality of gas passages are formed between the gas source (2) and the gas inlet (4); each gas passage is provided with a dryer (3); and each gas passage is provided with a control valve (6) between the gas source (2) and the gas inlet (31); the control valve (6) is used to control the on-off of the gas passage in which it is located.
3. The roller box device with rust-proof function according to claim 2, characterized in that: The gas inlets (31) of the dryers (3) are connected to each other and then to the gas source (2); the gas outlets (32) of the dryers (3) are connected to each other and then to the gas inlet (4).
4. The roller box device with rust-proof function according to claim 1, characterized in that: The flow area of the air inlet (4) is greater than the flow area of the air outlet (5), so that the flow rate at the air inlet (4) is greater than the flow rate at the air outlet (5), thereby forming a positive pressure in the roller box body (1).
5. The roller box device with rust-proof function according to any one of claims 1 to 3, characterized in that: The dryer (3) comprises a housing and a desiccant; The shell is in communication with the gas source (2) and the gas inlet (4); the desiccant is contained in the shell, and the desiccant includes one or more of molecular sieve, activated carbon, silica gel, and limestone.
6. The roller box device with rust-proof function according to claim 5, characterized in that: The desiccant is a molecular sieve; The dryer (3) further comprises a heater; the heater is arranged on the outer shell and is used to heat the molecular sieve when the adsorption performance of the molecular sieve decreases, so as to restore its adsorption performance.
7. The roller box device with rust-proof function according to claim 1, characterized in that: The anti-rust gas includes one or more of nitrogen, argon or carbon dioxide.
8. The roller box device with rust-proof function according to claim 7, characterized in that: The anti-rust gas is nitrogen, and the gas source (2) is a nitrogen pipe of a bright annealing furnace.
9. The roller box device with rust-proof function according to claim 1, characterized in that: The roller box body (1) comprises a box body (11) and a box cover (2); The box cover (2) is detachably arranged on the upper side of the box body (11) and is used to close the box body (11); a sealing ring is arranged between the box body (11) and the box cover (2).