Seamless steel tube cold-rolling mill

Abstract

The utility model discloses a seamless steel pipe cold rolling mill which comprises a base, a fixing frame is fixedly installed on the right side of the upper end of the base, two rollers are rotationally connected into the fixing frame, a steel pipe is arranged between the two rollers, supporting plates are fixedly installed on the left side and the right side of the upper end of the base respectively, and the steel pipe is located on the supporting plates. A sliding rail is fixedly mounted at the rear end of the fixing frame, a push plate is in threaded connection with the outer surface of the driving mechanism, and the problem that cold rolling machining operation is affected due to the fact that impurities are attached to the surface of a steel pipe is solved. According to the technical scheme, the seamless steel tube cold-rolling mill is provided. When a pickling solution is sprayed to the surface of a steel pipe through the spray head, impurities and chippings on the surface of the steel pipe can be rapidly removed through the strong scouring force and the chemical reaction effect of the pickling solution, potential threats of the impurities to the surface of the steel pipe can be remarkably reduced through pickling pretreatment, and the impurities and the chippings are prevented from scratching the surface of the steel pipe in the cold rolling process; the steel pipe cold-rolling machining quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a seamless steel pipe processing equipment more specifically, it relates to a kind of seamless steel pipe cold rolling mill. BACKGROUND

[0002] Seamless steel pipe cold rolling mill is the pipe-making equipment using cold rolling process to further process the steel pipe produced by hot rolling or hot extrusion method.Through the cold rolling process, the precision, strength and surface finish of the steel pipe can be improved, and more extensive size requirements can be met.

[0003] The existing seamless steel pipe cold rolling mill is polluted by dust, oil stains and other pollutants during transportation and storage before cold rolling processing of steel pipe, and impurities and debris can scratch the surface of steel pipe during cold rolling process, resulting in scratches, indentation and other defects on the surface of steel pipe, affecting the surface quality of steel pipe.

[0004] Therefore, a new solution is needed to solve this problem. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a seamless steel pipe cold rolling mill, which is pretreated by acid pickling liquid through the outlet pipe and spray pipe, and then sprayed onto the surface of the steel pipe by two spray heads before cold rolling processing. The acid pickling liquid usually contains strong acid components such as sulfuric acid and hydrochloric acid. These acid liquids can chemically react with impurities such as oxides, rust, oil stains and other impurities on the surface of the steel pipe, thereby dissolving or peeling them off. When the acid pickling liquid is sprayed onto the surface of the steel pipe by the spray head, its strong scouring force and chemical reaction can quickly remove the impurities and debris on the surface of the steel pipe. The acid pickling liquid can completely remove the impurities such as oxides, rust, oil stains and other impurities on the surface of the steel pipe. These impurities can scratch the surface of the steel pipe during cold rolling process. Through acid pickling pretreatment, the potential threat of these impurities to the surface of the steel pipe can be significantly reduced, and the impurities and debris can be prevented from scratching the surface of the steel pipe during cold rolling process, thereby ensuring the quality of steel pipe cold rolling processing.

[0006] The technical purpose is achieved by the following technical scheme: a seamless steel pipe cold rolling machine, comprising a base, a fixed frame is fixedly installed at the upper end right side of the base, two rollers are rotationally connected inside the fixed frame, a steel pipe is arranged between the two rollers, a support plate is fixedly installed at the upper end left and right sides of the base, the steel pipe is located on the support plate, a slide rail is fixedly installed at the rear end of the fixed frame, a drive mechanism is arranged inside the slide rail, a push plate is threadedly connected to the outer surface of the drive mechanism, a fixed plate is fixedly installed at the left end of the fixed frame, a liquid storage barrel is fixedly installed at the upper end left side of the fixed plate, a pipe outlet is fixedly installed at the lower end of the liquid storage barrel, a spray pipe is fixedly installed at the outer surface of the pipe outlet, a spray head is fixedly installed at the end of the spray pipe away from the pipe outlet, and the two spray heads are located in front of and behind the steel pipe.

[0007] The utility model further sets up: drive mechanism includes screw rod, the left end of screw rod is fixedly installed with servo motor, servo motor is fixedly connected at the left end of slide rail, screw rod is movably inserted and connects in the inside of slide rail, push board is threadedly connected on the outer surface of screw rod.

[0008] The utility model further sets up: the upper end of base places storage box, storage box is located below two spray heads.

[0009] The utility model further sets up: push board is located in the left side of steel pipe.

[0010] The utility model further sets up: fixed frame is set up in U shape.

[0011] Summarized above, the utility model has following beneficial effect:

[0012] 1、acid pickling solution passes pipe outlet and spray pipe, then is sprayed to the surface of steel pipe through two spray heads, carries out pretreatment to steel pipe before cold rolling processing, and acid pickling solution usually includes strong acid component, such as sulfuric acid, hydrochloric acid and so on, these acid liquids can react chemically with the impurities such as oxide, rust, oil stain on the surface of steel pipe, thereby dissolving or peeling off them.When acid pickling solution is sprayed to the surface of steel pipe through spray head, its strong scouring force and chemical reaction effect can quickly remove the impurities and debris on the surface of steel pipe, and acid pickling solution can completely remove the impurities such as oxide, rust, oil stain on the surface of steel pipe, and these impurities can become the "prime culprit" that scratches the surface of steel pipe in the cold rolling process.Through pickling pretreatment, the potential threat of these impurities to the surface of steel pipe can be significantly reduced, and the impurities and debris can be prevented from scratching the surface of steel pipe in the cold rolling process, so as to guarantee the cold rolling processing quality of steel pipe. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0014] Fig. 2 The utility model discloses a three-dimensional structure schematic diagram of the shower head.

[0015] In the drawing: 1, base; 2, fixed frame; 3, roll; 4, steel pipe; 5, support plate; 6, slide rail; 7, drive mechanism; 8, push plate; 9, fixed plate; 10, liquid storage barrel; 11, outlet pipe; 12, spray pipe; 13, shower head; 71, screw rod; 72, servo motor; 14, storage box. DETAILED DESCRIPTION

[0016] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be described in further detail below in conjunction with the drawings and specific embodiments, it is to be explained that in the case where there is no conflict, the embodiment of the application and the feature in the embodiment can be combined mutually.

[0017] In the description of the utility model, it is to be explained that the orientation or position relation that the terms "upper", "lower", "internal", "external" "top / bottom end" instruct is based on the orientation or position relation shown in the drawing, only is for the convenience of describing the utility model and simplifying the description, and is not instructing or implying that the device or element indicated must have a particular orientation, with a particular orientation structure and operation, therefore can not be understood as the limitation to the utility model.

[0018] In the description of the utility model, it is to be explained that unless another explicit provision and limitation, the terms "installation", "set with", "sleeve setting / interface", "connection" and the like, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements interior.For the ordinary skilled person in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0019] The utility model will be described in detail below in conjunction with the drawings.

[0020] A kind of seamless steel tube cold rolling mill, such as Figs. 1-2As shown, including the base 1, the upper end of the right side of the base 1 is fixedly installed with a fixed frame 2, the inside of the fixed frame 2 is rotatably connected with two rollers 3, the two rollers 3 are provided with a steel pipe 4, the upper end of the base 1 is fixedly installed with a support plate 5 on both sides, the steel pipe 4 is located on the support plate 5, characterized in that: the rear end of the fixed frame 2 is fixedly installed with a slide rail 6, the fixed frame 2 is provided in a U shape, the slide rail 6 is provided with a drive mechanism 7, the outer surface of the drive mechanism 7 is threadedly connected with a push plate 8, the push plate 8 is located on the left side of the steel pipe 4, the left end of the fixed frame 2 is fixedly installed with a fixed plate 9, the upper end of the left side of the fixed plate 9 is fixedly installed with a liquid storage barrel 10, the lower end of the liquid storage barrel 10 is fixedly installed with a pipe 11, the outer surface of the pipe 11 is fixedly installed with a spray pipe 12 on both sides, the end of the two spray pipes 12 away from the pipe 11 is fixedly installed with a spray head 13, the two spray heads 13 are located on the front and rear of the steel pipe 4, the steel pipe 4 is processed by the two rollers 3, and the specific working principle is the prior art. Before the steel pipe 4 is cold-rolled by the roller 3, the pickling liquid is stored in the liquid storage barrel 10, the valve at the outlet pipe 11 is opened, the pickling liquid passes through the outlet pipe 11 and the spray pipe 12, and then is sprayed to the surface of the steel pipe 4 through the two spray heads 13. The steel pipe 4 is pretreated before cold rolling. The pickling liquid usually contains strong acid components such as sulfuric acid and hydrochloric acid. These acid liquids can react with the oxides, rust, oil stains and other impurities on the surface of the steel pipe 4, so as to dissolve or strip them. When the pickling liquid is sprayed to the surface of the steel pipe 4 through the spray head 13, the strong scouring force and chemical reaction can quickly remove the impurities and debris on the surface of the steel pipe 4. The pickling liquid can completely remove the oxides, rust, oil stains and other impurities on the surface of the steel pipe 4. These impurities will become the "culprit" that scratches the surface of the steel pipe 4 during cold rolling. Through pickling pretreatment, the potential threat of these impurities to the surface of the steel pipe 4 can be significantly reduced, the impurities and debris can be prevented from scratching the surface of the steel pipe 4 during cold rolling, and the cold rolling quality of the steel pipe 4 can be ensured.

[0021] As Fig. 1 shown, the drive mechanism 7 comprises a screw rod 71, the left end of the screw rod 71 is fixedly installed with a servo motor 72, the servo motor 72 is fixedly connected to the left end of the slide rail 6, the screw rod 71 is movably connected in the inside of the slide rail 6, the push plate 8 is threadedly connected to the outer surface of the screw rod 71, the servo motor 72 is started to drive the screw rod 71 to rotate, so as to drive the push plate 8 to move from left to right and push the steel pipe 4 to move right into the roller 3 for processing.

[0022] As Fig. 1 shown, the upper end of the base 1 is provided with a storage box 14, the storage box 14 is located below the two spray heads 13, and the storage box 14 is provided for collecting the cleaning liquid and debris and other impurities sprayed out.

[0023] Working principle: through when the steel pipe 4 in the roll 3 carries out the cold rolling processing before, through in the storage liquid bucket 10 storage has the pickling liquid, opens the valve at the outlet pipe 11, the pickling liquid passes through the outlet pipe 11 and the spray pipe 12, then passes through two spray heads 13 and is sprayed to the surface of steel pipe 4, carries out the pretreatment to steel pipe 4 before the cold rolling processing, the pickling liquid usually includes strong acid component, such as sulfuric acid, hydrochloric acid and so on, these acid liquid can react chemically with the oxide, the rust, the oil dirt and so on impurities on the surface of steel pipe 4, thereby dissolves or peels off it.When the pickling liquid is sprayed to the surface of steel pipe 4 through the spray head 13, its strong scouring force and chemical reaction effect can quickly remove the impurities and debris on the surface of steel pipe 4, and the pickling liquid can thoroughly remove the oxide, the rust, the oil dirt and so on impurities on the surface of steel pipe 4, which can scratch the surface of steel pipe 4 in the cold rolling process. Through the pickling pretreatment, the potential threat of these impurities to the surface of steel pipe 4 can be significantly reduced, and the impurities and debris can be prevented from scratching the surface of steel pipe 4 in the cold rolling process, thereby ensuring the cold rolling processing quality of steel pipe 4.

[0024] The above only is the preferred implementation of the present application, the protection scope of the present application is not only limited to the above-mentioned embodiment, all technical solutions under the idea of the present application belong to the protection scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the principle of the present application, some improvements and decorations, these improvements and decorations should also be considered as the protection scope of the present application.

Claims

1. A seamless steel pipe cold rolling mill, comprising a base (1), wherein a fixing frame (2) is fixedly installed on the upper right side of the base (1), two rollers (3) are rotatably connected inside the fixing frame (2), a steel pipe (4) is disposed between the two rollers (3), and a support plate (5) is fixedly installed on both the left and right sides of the upper end of the base (1), wherein the steel pipe (4) is located on the support plate (5), characterized in that: The rear end of the fixing frame (2) is fixedly provided with a sliding rail (6), a driving mechanism (7) is arranged in the sliding rail (6), the outer surface of the driving mechanism (7) is threadedly connected with a push plate (8), the left end of the fixing frame (2) is fixedly provided with a fixed plate (9), the upper end left side of the fixed plate (9) is fixedly provided with a liquid storage barrel (10), the lower end of the liquid storage barrel (10) is fixedly provided with a outlet pipe (11), the outer surface of the outlet pipe (11) is fixedly provided with a spray pipe (12) on the front and back sides, the end, away from the outlet pipe (11), of the two spray pipes (12) is fixedly provided with a spray head (13), and the two spray heads (13) are respectively located in front of and behind the steel pipe (4).

2. A seamless tube cold rolling mill according to claim 1, characterized in that: The driving mechanism (7) comprises a screw rod (71), the left end of the screw rod (71) is fixedly provided with a servo motor (72), the servo motor (72) is fixedly connected to the left end of the sliding rail (6), and the screw rod (71) is movably inserted into the sliding rail (6).

3. A seamless tube cold rolling mill as claimed in claim 1, wherein: The upper end of the base (1) is provided with a storage box (14), and the storage box (14) is located below the two spray heads (13).

4. A seamless tube cold rolling mill as claimed in claim 1, wherein: The push plate (8) is located on the left side of the steel pipe (4).

5. A seamless tube cold rolling mill as claimed in claim 1, wherein: The fixing frame (2) is in a U shape. The fixing frame (2) is in a U shape.

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