Roller box device with anti-rust function

Abstract

The utility model relates to the technical field of roller box rust prevention, in particular to a roller box device with a rust prevention function, which comprises a roller box body, an air source and a dryer group. Wherein the roller box body is provided with an air inlet and an air outlet. A roller placing base and a roller box supporting seat are arranged in the roller box body. The roller placing base is used for placing the pulling-straightening roller. The roller box supporting seat is used for placing a roller box. The air source, the dryer set and the air inlet are sequentially communicated. And high-pressure anti-rust gas is filled in the gas source. And the dryer group is arranged between the air source and the air inlet. Rust-proof gas released by the gas source enters the gas inlet after being dried by the dryer set, and then gas and moisture in the roller box body are discharged through the gas outlet. According to the anti-rust roller box, air and moisture in the roller box body are isolated by introducing the anti-rust gas dried by the dryer into the roller box body, so that the roller and the roller box can be prevented from being rusted in the storage process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of roller box rust prevention, in particular to a roller box device with rust prevention function. BACKGROUND

[0002] The key equipment for realizing the tension-bending-straightening function of the tension-bending-straightening unit is a tension roller set and a roller box (containing a tension-straightening roller). In the prior art, the material of the tension-straightening machine and the roller box (containing the tension-straightening roller) is made of alloy spring steel 50CrV4. This material has high fatigue strength. However, since the Cr content of the material is only 0.8% to 1.1%, the rust-proof performance of the work roller and the intermediate roller is far inferior to that of the stainless steel material. Moreover, when the tension-bending-straightening unit operates in a humid environment, especially in the environment of a coastal city, the roller box (containing the tension-straightening roller) has a serious rusting phenomenon. It is difficult for the tension-straightening machine and the roller box to obtain dry and constant-temperature rust-proof conditions in the working production environment.

[0003] Even if the roller box is immersed in hydraulic oil, a relatively serious rusting phenomenon of the roller box still occurs in the case of long storage time, and the roller box immersed in the hydraulic oil needs to be comprehensively cleaned and the bearing lubricating oil needs to be re-added before being put into use. It takes 8 hours to prepare each time a new roller box is put into use. This kind of roller box storage method cannot guarantee good rust-proof effect and affects the work efficiency. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the above technical problems, the present application provides a roller box device with rust prevention function.

[0005] The roller box device with rust prevention function provided by the utility model adopts the following technical scheme:

[0006] A roller box device with rust prevention function, comprising a roller box body, an air source and a dryer set; wherein the roller box body has an air inlet and an air outlet; a roller placing base and a roller box supporting seat are arranged in the roller box body; the roller placing base is used for placing a tension-straightening roller; the roller box supporting seat is used for placing a roller box; the air source, the dryer set and the air inlet are sequentially communicated; the air source contains high-pressure rust-prevention gas; the dryer set is arranged between the air source and the air inlet; the rust-prevention gas released by the air source enters the air inlet after being dried by the dryer set, so that the gas and moisture in the roller box body are discharged through the air outlet.

[0007] Optionally, the dryer set comprises at least two dryers; the dryers have gas inlets and gas outlets; the gas inlets of each of the dryers are communicated with the gas source; the gas outlets of each of the dryers are communicated with the gas inlet; a plurality of gas passages are formed between the gas source and the gas inlet; each of the gas passages is provided with one of the dryers; and each of the gas passages is provided with a control valve between the gas source and the gas inlet; the control valve is used for controlling the opening and closing of the gas passage where the control valve is located.

[0008] Optionally, the gas inlets of each of the dryers are communicated with the gas source after being communicated; and the gas outlets of each of the dryers are communicated with the gas inlet after being communicated.

[0009] Optionally, the flow area of the gas inlet is larger than the flow area of the gas outlet, so that the flow rate at the gas inlet is larger than the flow rate at the gas outlet, and a positive pressure is formed in the roller box body.

[0010] Optionally, the dryer comprises a shell and a drying agent; the shell is communicated with the gas source and the gas inlet; the drying agent is contained in the shell, and the drying agent comprises one or more of molecular sieve, activated carbon, silica gel and limestone.

[0011] Optionally, the drying agent is molecular sieve; the dryer further comprises a heater; the heater is arranged on the shell and is used for heating the molecular sieve when the adsorption performance of the molecular sieve decreases, so that the adsorption performance of the molecular sieve is recovered.

[0012] Optionally, the gas released by the gas source comprises one of nitrogen, argon and 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, the roller box body is provided with a roller placing base and a roller box supporting seat; the roller placing base is used for placing a straightening roller; and the roller box supporting seat is used for placing a roller box.

[0015] Optionally, the roller box body comprises a box body and a box cover; the box cover is detachably arranged on the upper side of the box body and is used for closing the box body; and a sealing ring is arranged between the box body and the box cover.

[0016] As described above, the roller box device with the rust prevention function has at least the following beneficial effects:

[0017] 1. By the way that the rust-proof gas dried by the dryer is introduced into the roller box body, the air and moisture in the roller box body are isolated, and thus the rust of the roller and the roller box during storage can be prevented.

[0018] 2. By using two parallel dryers as a dryer group, the rust-preventing gas introduced into the roller box body can be dried continuously, ensuring the stable and reliable rust-preventing function. Furthermore, the dryer is equipped with a heater, which, when molecular sieves are used as the desiccant, can heat the molecular sieves, restoring their adsorption performance if it has declined due to prolonged use.

[0019] 3. By introducing a large flow of air into the air inlet and a small flow of air out of the air outlet, a positive pressure is formed inside the roller box. Furthermore, a sealing ring is installed 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 rust prevention effect.

[0020] 4. Each gas passage can be controlled by a control valve to open or close, which facilitates the switching of gas passages and prevents the release of a large amount of rust-preventing gas after the roller box body is opened, thus avoiding accidents caused by temporary oxygen deficiency for the staff. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the gas flow in a roller box device with rust prevention function.

[0022] Figure 2 This is a schematic diagram of the roller box body structure.

[0023] Reference numerals in the attached drawings: 1. Roller box body; 11. Box body; 12. 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 Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0025] It is to be understood that the structures, proportions, sizes, etc. shown in the drawings accompanying the present specification are merely intended to facilitate the understanding of the content disclosed in the present specification for those skilled in the art to understand and read, and are not intended to limit the implementation of the present application, and therefore do not have substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present specification are only for the convenience of clear description, and are not intended to limit the scope of the present application, and the change or adjustment of the relative relationship without substantial change of the technical content is also regarded as the scope of the present application.

[0026] Please refer to Figure 1 , 2 The present application discloses a roll box device with anti-rust function, comprising a roll box body 1, an air source 2 and a dryer group. The roll box body 1 has an air inlet 4 and an air outlet 5. A roll placing base (not shown in the figure) and a roll box supporting seat (not shown in the figure) are arranged in the roll box body 1. The roll placing base is used for placing a stretch leveler. The roll box supporting seat is used for placing a roll box. The air source 2, the dryer group and the air inlet 4 are sequentially communicated. The air source 2 contains high-pressure anti-rust gas. 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 roll box body 1 are discharged through the air outlet 5.

[0027] The anti-rust gas released from the air source 2 is first dried by the dryer group and then introduced into the roll box body 1 through the air inlet 4. Under the push of the anti-rust gas, the air and moisture in the roll box body 1 are gradually discharged through the air outlet 5, and then an environment suitable for storing the roll and the roll box is formed in the roll box body 1.

[0028] When the roll and the roll box are replaced, and when the stretch leveler is stopped for a long time, the roll and the roll box need to be placed in the roll box body 1 for anti-rust. The roll placing base and the roll box supporting seat can reduce the damage of the roll and the roll box during storage. The shapes of the roll placing base and the roll box supporting seat are matched with the shapes of the stretch leveler and the roll box respectively.

[0029] Specifically, the anti-rust gas is used to replace air and does not react with the items stored in the roll box body 1. Therefore, the anti-rust gas should be an inert gas. The anti-rust gas includes one of nitrogen, argon or carbon dioxide. In some other embodiments of the present application, the anti-rust gas can also be a gas with anti-rust function such as hydrogen. In the present embodiment, the anti-rust gas is nitrogen. Nitrogen has the advantages of good safety and low cost.

[0030] Correspondingly, the gas source 2 can adopt a gas cylinder, a gas pipeline or other facilities for storing or transmitting gas. In the steel production process, nitrogen is often used as a gas for preventing oxidation, pressure control and controlling the atmosphere in the furnace. Therefore, the nitrogen in the steel production process can be used as the gas source 2 of nitrogen.

[0031] Specifically, in the embodiment, when the roller box with the anti-rust function is applied to the anti-rust of the tension roller group and the roller box matched with the stretch-bend straightening machine, the stretch-bend straightening machine is used for straightening the workpiece produced in the bright annealing furnace, and nitrogen is often used as the protective gas in the bright annealing furnace to prevent the workpiece from being oxidized. Therefore, the gas source 2 in the embodiment is the gas pipeline of the bright annealing furnace, that is, a part of nitrogen is led out 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 in communication with the gas source 2. The gas outlet 32 of each dryer 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. One dryer 3 is arranged on each gas passage. A control valve 6 is arranged between the gas source 2 and the gas inlet 31 on each gas passage. The control valve 6 is used for controlling the opening and closing of the gas passage where the control valve 6 is arranged.

[0033] Specifically, when the dryer group includes only one dryer 3, and the function of the dryer 3 fails, the anti-rust gas introduced into the roller box body 1 will contain more moisture, which will cause the rollers and the roller boxes in the roller box body 1 to rust. Therefore, when the dryer group includes two dryers 3, one gas passage is used as the main gas passage, and the other gas passage is used as the standby gas passage. When the function of the dryer 3 in the main gas passage fails, the standby gas passage can be switched immediately, so that the dryness of the anti-rust gas introduced into the roller box body 1 is ensured.

[0034] In addition to switching the gas passages, the control valve 6 on the gas passage can also be used to close all the gas passages before the roller box body 1 is opened, so as to prevent a large amount of nitrogen from being released after the roller box body 1 is opened, causing the workers to be short of oxygen for a short time and causing accidents.

[0035] In a preferred embodiment of the present application, a total valve is further arranged on the pipeline in communication with the gas inlet 4 after the two dryers 3 are connected in parallel. The total valve 7 can be used to more conveniently control the opening and closing of the entire dryer group.

[0036] In addition, when the distance between the dryers 3 and the air source 2 and the air inlet 4 is far, the air inlets 31 of the dryers 3 are communicated with the air source 2 through separate pipelines, and the air outlets 32 of the dryers 3 are communicated with the air inlet 4 through separate pipelines, so that more pipelines need to be laid, which is not conducive to cost saving. Therefore, in a preferred embodiment of the present application, the air inlets 31 of the dryers 3 are communicated and then communicated with the air source 2. The air outlets 32 of the dryers 3 are communicated and then communicated with the air inlet 4.

[0037] More specifically, the dryer 3 comprises a shell and a drying agent. The air inlet 31 and the air outlet 32 are provided on the shell. The drying agent is contained in the shell, and the drying agent comprises one or more of molecular sieve, activated carbon, silica gel, and limestone. In actual application, the drying agent can be selected according to the type and flow of the rust-proof gas.

[0038] In the embodiment, the drying agent is selected as molecular sieve. The molecular sieve can still well contain water molecules at high temperature above 230 DEG C, so that the rust-proof gas can be effectively dried. However, the surface of the molecular sieve will be blocked with the extension of the use time, resulting in the gradual decrease of the adsorption capacity. When the molecular sieve is heated, the adsorbed substance can be released, the water molecules are accelerated to be dissociated, and thus the adsorption capacity is recovered.

[0039] Based on the above characteristics of the molecular sieve, the dryer 3 further comprises a heater. The heater is arranged on the shell and used to heat the molecular sieve when the adsorption capacity of the molecular sieve decreases, so that the adsorption capacity of the molecular sieve is recovered.

[0040] In actual application, when the dryer group is working, the main gas passage is opened and the standby gas passage is closed. When the adsorption capacity of the molecular sieve in the main gas passage decreases, the main gas passage is closed and the standby gas passage is opened, so that the rust-proof gas can still be dried. At the same time, the heater of the dryer 3 in the main gas passage is opened to heat the molecular sieve, so that the adsorption capacity of the molecular sieve is recovered. After a period of operation, the standby gas passage is closed, the main gas passage is opened, and the heater of the dryer 3 in the standby gas passage is opened. In this way, the rust-proof gas can always be dried, and is not affected by the decrease of the adsorption capacity of the molecular sieve.

[0041] Please refer to Figure 2 The roller box body 1 comprises a box body 11 and a box cover 12. The box cover 12 is detachably arranged on the upper side of the box body 11 and used to close the box body 11. The box cover 12 can be covered on the upper side of the box body 11 by buckling or can be movably arranged on the upper side of the box body 11 by hinging. In some other embodiments of the present application, the connection mode of the box cover 12 and the box body 11 can also adopt other suitable connection modes. In order to ensure the sealing property between the box body 11 and the box cover 12, a sealing ring is arranged between the box body 11 and the box cover 12.

[0042] When the air pressure in the roller box body 1 is lower than the outside air pressure, the outside air can still enter the roller box body 1 through the gap on the roller box body 1. In order to avoid this situation, the flow area of the air inlet 4 of the roller box body 1 is larger than that of the air outlet 5, so that the flow at the air inlet 4 is larger than that at the air outlet 5, a positive pressure is formed in the roller box body 1, even if the pressure in the roller box body 1 is always greater than the outside air pressure, thereby preventing the outside air and moisture from entering the roller box body 1, and further ensuring the rust prevention performance of the roller box body 1.

[0043] Compared with the prior art, the roller box device with the rust prevention function has the following advantages:

[0044] 1. By introducing the rust prevention gas dried by the dryer 3 into the roller box body 1, the air and moisture in the roller box body 1 are isolated, and rusting of the rollers and the roller box during storage is prevented.

[0045] 2. By using two parallel dryers 3 as a dryer group, the rust prevention gas introduced into the roller box body 1 can be continuously dried, and the stable and reliable rust prevention function is ensured. The dryer 3 has a heater, and in the case that the dryer 3 uses molecular sieve as a drying agent, the molecular sieve can be heated to restore the adsorption performance of the molecular sieve which has been reduced due to long-term use.

[0046] 3. By introducing air at a large flow rate at the air inlet 4 and discharging air at a small flow rate at the air outlet 5, a positive pressure is formed in the roller box body 1, and a sealing ring is arranged between the box body 11 and the cover 12 of the roller box, which further prevents the outside air and moisture from entering the roller box body 1 and enhances the rust prevention effect.

[0047] 4. Each gas passage can be controlled by the control valve 6 to control the on-off, which facilitates the switching of the gas passage and prevents a large amount of rust prevention gas from being released after the roller box body 1 is opened, thereby avoiding accidents caused by temporary oxygen deficiency of the workers.

[0048] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed by the present application should be covered by the claims of the present application.

Claims

1. A roller box device with rust prevention function, characterized in that, The roll box body (1), the air source (2) and the dryer group are included, wherein, The roll box body (1) has an air inlet (4) and an air outlet (5); the roll box body (1) is provided with a roll placing base and a roll box supporting seat; the roll placing base is used for placing a straightening roll; the roll box supporting seat is used for placing a roll box; The air source (2), the dryer group and the air inlet (4) are sequentially communicated; The air source (2) has high-pressure rust-proof gas; the dryer group is arranged between the air source (2) and the air inlet (4); The rust-proof 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 roll box body (1) are discharged through the air outlet (5).

2. The roll box device having a rust-preventing function according to claim 1, characterized by The dryer group includes at least two dryers (3); the dryers (3) have gas inlets (31) and gas outlets (32); The gas inlets (31) of the dryers (3) are communicated with the air source (2); the gas outlets (32) of the dryers (3) are communicated with the air inlet (4); A plurality of gas passages are formed between the air source (2) and the air inlet (4); one dryer (3) is arranged on each gas passage; a control valve (6) is arranged between the air source (2) and the gas inlet (31) on each gas passage; the control valve (6) is used for controlling the opening and closing of the gas passage.

3. The roll box device having a rust-preventing function according to claim 2, characterized by The gas inlets (31) of the dryers (3) are communicated with the air source (2); the gas outlets (32) of the dryers (3) are communicated with the air inlet (4).

4. The roll box device having a rust-preventing function according to claim 1, characterized by The flow area of the air inlet (4) is greater than that of the air outlet (5), so that the flow rate at the air inlet (4) is greater than that at the air outlet (5), and a positive pressure is formed in the roll box body (1).

5. The roll box device having a rust-preventing function according to any one of claims 1 to 3, characterized by The dryer (3) includes a shell and a drying agent; The shell is communicated with the air source (2) and the air inlet (4); the drying agent is contained in the shell, and the drying agent includes one or more of molecular sieve, activated carbon, silica gel and limestone.

6. The roll box device having a rust-preventing function according to claim 5, wherein The drying agent is molecular sieve; The dryer (3) further includes a heater; the heater is arranged on the shell and used for heating the molecular sieve when the adsorption performance of the molecular sieve decreases, so that the adsorption performance of the molecular sieve is recovered.

7. The roll box device having a rust-preventing function according to claim 1, characterized by The rust-proof gas includes one of nitrogen, argon or carbon dioxide.

8. The roll box device having a rust-preventing function according to claim 7, characterized by The rust-proof gas is nitrogen, and the air source (2) is a nitrogen pipe of a bright annealing furnace.

9. The roll box device having a rust-preventing function according to claim 1, wherein The roll box body (1) includes a box body (11) and a box cover (12); The box cover (12) is detachably arranged on the upper side of the box body (11) and used for closing the box body (11); a sealing ring is arranged between the box body (11) and the box cover (12).

Images