Rolling mill for strip steel production

Abstract

The utility model discloses a rolling mill for strip steel production, which comprises a main body, a double-thread transmission rod and a connecting block, two cold rollers are arranged on the upper side and the lower side inside the main body, the double-thread transmission rod is rotatably arranged on the front side and the rear side of one side of the main body, and the upper side outside the double-thread transmission rod is in threaded connection with a moving block. And the connecting blocks are welded to one side of the upper side and the lower side of the front end of the main body, first electric telescopic rods are arranged in the connecting blocks, fixing bases are arranged on the upper side and the lower side of the front portion of the main body, and the fixing bases are connected with the output ends of the first electric telescopic rods. According to the rolling mill for strip steel production, water flow is fully sprayed on strip steel, the effective cooling effect is achieved, the mechanical performance and the surface quality of the strip steel are guaranteed, meanwhile, the cleanliness of the strip steel before rolling is improved, the rolling defects and the product quality problems caused by impurities are reduced, and the production quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of strip production, and particularly relates to a rolling mill for strip production. Background Technique

[0002] A strip is a narrow and long steel plate, usually with a width within 1300 mm, and its length can be long or short according to production requirements. Strip is an important product in the iron and steel industry and is widely used in many fields such as construction, machinery manufacturing, automobile manufacturing, and household appliance manufacturing. According to different materials and processing methods, strips can be divided into hot-rolled strips, cold-rolled strips, galvanized strips, etc. When producing strips, a rolling mill can be used to plastically deform the metal billet to obtain the required strip shape and size.

[0003] The existing Chinese patent with the publication number CN218191725U discloses a cold rolling mill for strips, including a base. A positioning bracket is fixedly connected to the top of the base, and a fixed bearing seat is fixedly connected inside the positioning bracket. A lower rolling roll is rotatably connected inside the fixed bearing seat, and the lower rolling roll penetrates through the inside of two limiting plates. A positioning bearing seat is slidably connected to the internal chute of the positioning bracket, and an upper rolling roll is rotatably connected inside the positioning bearing seat. The upper rolling roll penetrates through the inside of two positioning plates, and telescopic devices are respectively fixedly connected to the tops of the two positioning plates.

[0004] Although the above solution can make the cold rolling mill for strips perform certain adjustments according to strips of different thicknesses, the strip will undergo plastic deformation during the rolling process, and a large amount of heat will be generated during this process. There is relative sliding between the strip and the rolling roll during the rolling process, and this sliding will generate frictional heat. This machine lacks effective heat dissipation, and too high a temperature will affect the mechanical properties and surface quality of the strip. At the same time, this rolling mill lacks the function of removing dust from the strip surface, which affects the production quality. Therefore, it does not meet the existing requirements, and for this reason, we propose a rolling mill for strip production. Content of the Utility Model

[0005] The purpose of the utility model is to provide a rolling mill for strip production to solve the problems that the rolling mill is prone to generate heat during the rolling process of the strip, which affects the mechanical properties of the strip, and lacks the function of removing dust from the strip surface, which affects the production quality as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A rolling mill for strip production, including a main body, and two cold rolling rolls are arranged on the upper and lower sides inside the main body;

[0007] It further includes a double-threaded transmission rod, which is rotatably arranged on the front and rear sides on one side of the main body, and a moving block is threadedly connected to the upper side of the outer part of the double-threaded transmission rod;

[0008] It further includes connecting blocks, which are welded to one side of the upper and lower sides of the front end of the main body. First electric telescopic rods are arranged inside the connecting blocks. Fixed seats are arranged on the upper and lower sides in front of the main body, and the fixed seats are connected to the output ends of the first electric telescopic rods;

[0009] It further includes a water cavity, which is arranged at the rear side inside the main body. A nozzle seat is arranged directly above the water cavity. A second electric telescopic rod is arranged at the upper end of the nozzle seat, and the second electric telescopic rod is fixedly connected to the main body.

[0010] Preferably, a first motor is arranged above one of the double-threaded drive rods. Rotating rods are arranged at the upper ends of the double-threaded drive rods, and one of the rotating rods is in transmission connection with the first motor through a coupling. The rotating rods are in transmission connection through a transmission belt.

[0011] Preferably, second motors are installed inside the inner sides of the moving blocks, and the output ends of the second motors are in transmission connection with the cold rolling rolls through couplings.

[0012] Preferably, a guide groove is formed on one side inside the main body. Two guide blocks are slidably arranged on the upper and lower sides inside the guide groove, and the guide blocks are rotatably connected to the cold rolling rolls through rotating shafts.

[0013] Preferably, a water pump is arranged on one side of the main body, and the water pump is connected to the water cavity. The water pump and the nozzle seat are connected through a folding telescopic pipe.

[0014] Preferably, a filter plate is arranged on the upper side inside the water cavity.

[0015] Preferably, a number of equally spaced cleaning rolls are rotatably arranged inside the fixed seats.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] 1. By arranging a nozzle seat on the upper side at the rear of the main body in the present utility model, when the strip rolling is completed, the water pump can be started. The water pump will transport the water flow in the water cavity to the nozzle seat through the folding telescopic pipe, and the water flow can be sprayed out through the nozzles at the lower end of the nozzle seat, so as to cool the passing strip. At the same time, the height of the nozzle seat can be adjusted through the second electric telescopic rod, so that the water flow can be fully sprayed on the strip, realizing an effective cooling effect and ensuring the mechanical properties and surface quality of the strip.

[0018] 2. The utility model is provided with two connecting blocks on the upper and lower sides of the front end of the main body. A first electric telescopic rod is installed inside the connecting block. When the strip steel enters for rolling, the electric telescopic rods on the upper and lower sides can be started to make the fixing seats move towards each other. Cleaning rollers with adhesiveness are arranged inside the fixing seats. Therefore, when the strip steel passes through, the cleaning rollers can roll synchronously, and at the same time, the upper and lower surfaces of the strip steel can be adhesively adsorbed with dust and impurities, thereby improving the cleanliness of the strip steel before rolling, reducing rolling defects and product quality problems caused by the existence of impurities, and ensuring the production quality.

[0019] 3. The utility model is provided with two double-threaded transmission rods on one side of the upper end inside the main body. By starting the first motor, the two double-threaded transmission rods can rotate synchronously under the transmission of the transmission belt, thereby driving the two moving blocks to move towards each other. The moving blocks will drive the cold rolling rollers to move vertically towards or away from each other, so that synchronous movement on the upper and lower sides can be realized, facilitating the rolling of strip steels with different thicknesses, improving the scope of application, and having simple operation and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 is a front view schematic diagram of the internal structure of the utility model;

[0022] Figure 3 is a side view schematic diagram of the internal structure of the utility model;

[0023] Figure 4 is a top view schematic diagram of the internal structure of the utility model.

[0024] In the figure: 1, main body; 2, first motor; 3, double-threaded transmission rod; 4, moving block; 5, second motor; 6, cold rolling roller; 7, guide block; 8, guide groove; 9, connecting block; 10, fixing seat; 11, cleaning roller; 12, first electric telescopic rod; 13, second electric telescopic rod; 14, nozzle seat; 15, water cavity; 16, filter plate; 17, folding telescopic pipe; 18, water pump; 19, rotating rod; 20, transmission belt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-4, the present utility model provides a technical solution: a rolling mill for strip steel production, including a main body 1, and two cold rolling rolls 6 are arranged on the upper and lower sides inside the main body 1;

[0027] It further includes a double-threaded drive rod 3, which is rotatably arranged on the front and rear sides on one side of the main body 1, and a moving block 4 is threadedly connected to the upper side of the outside of the double-threaded drive rod 3;

[0028] It further includes a connecting block 9, which is welded to one side of the upper and lower sides of the front end of the main body 1, and a first electric telescopic rod 12 is arranged inside the connecting block 9. Fixed seats 10 are arranged on the upper and lower sides in front of the main body 1, and the fixed seats 10 are connected to the output ends of the first electric telescopic rods 12;

[0029] It further includes a water cavity 15, which is arranged at the rear side inside the main body 1. A nozzle seat 14 is arranged directly above the water cavity 15. A second electric telescopic rod 13 is arranged at the upper end of the nozzle seat 14, and the second electric telescopic rod 13 is fixedly connected to the main body 1.

[0030] During use, the strip steel enters from one end of the main body 1. The first electric telescopic rod 12 is started, and its output end pushes the cleaning roller 11 in the fixed seat 10 to closely adhere to the strip steel. The cleaning roller is made of high-viscosity butyl rubber, which can effectively remove surface impurities. Subsequently, the first motor 2 drives the rotating rod 19 to be linked through the transmission belt 20, so that the double-threaded drive rod 3 rotates, driving the moving block 4 and the second motor 5 and the cold rolling roll 6 to synchronously adjust the distance to adapt to strip steel of different thicknesses. After rolling, the water pump 18 pumps water from the water cavity 15 to the nozzle seat 14 through the folding telescopic pipe 17 and sprays it to cool the strip steel. The second electric telescopic rod 13 adjusts the position of the nozzle seat 14 to ensure comprehensive cooling. The cooling water flows back to the water cavity and is filtered by the filter plate 16 to remove impurities, realizing the recycling of water.

[0031] Please refer to Figure 2 and Figure 3 , a first motor 2 is arranged above one of the double-threaded drive rods 3. Rotating rods 19 are arranged at the upper ends of the double-threaded drive rods 3, and one of the rotating rods 19 is in transmission connection with the first motor 2 through a coupling. The rotating rods 19 are in transmission connection through a transmission belt 20, and the arrangement of the transmission belt 20 realizes the synchronous rotation between the two double-threaded drive rods 3;

[0032] Please refer to Figure 2 and Figure 3 , second motors 5 are installed inside the moving blocks 4, and the output ends of the second motors 5 are in transmission connection with the cold rolling rolls 6 through couplings. The second motors 5 provide power for the rotation of the cold rolling rolls 6;

[0033] Please refer to Figure 2 and Figure 4, on one side inside the main body 1, a guiding groove 8 is provided. Two guiding blocks 7 are slidably arranged on the upper and lower sides inside the guiding groove 8, and the guiding blocks 7 are rotatably connected to the cold rolling roll 6 through rotating shafts. The cooperation between the guiding groove 8 and the guiding blocks 7 plays a role in guiding and limiting, ensuring the stability and smoothness of the cold rolling roll 6 during vertical movement;

[0034] Please refer to Figure 1 and Figure 2 , on one side of the main body 1, a water pump 18 is provided, and the water pump 18 is connected to the water cavity 15. The water pump 18 and the nozzle seat 14 are connected through a folding telescopic tube 17. The design of the folding telescopic tube 17 allows the nozzle seat 14 to maintain the connection with the water pump 18 during movement without disconnection, ensuring the stable supply and uniform spraying of cooling water and improving the cooling effect on the strip steel;

[0035] Please refer to Figure 1 , Figure 3 and Figure 4 , on the upper side inside the water cavity 15, a filter plate 16 is provided. The filter plate 16 can effectively filter out impurities and dirt in the cooling water, preventing them from entering the nozzle seat 14 and affecting the cooling effect or damaging the equipment;

[0036] Please refer to Figure 1 and Figure 3 , inside the fixed seat 10, a number of equally spaced cleaning rollers 11 are rotatably arranged. The cleaning rollers 11 are made of highly viscous and wear-resistant butyl rubber, which can effectively adsorb and remove dust, oil stains and tiny impurities on the surface of the strip steel.

[0037] Working principle: When in use, the strip steel is moved into one end of the main body 1. The first electric telescopic rods 12 on the upper and lower sides are started. The output ends thereof will drive the fixed seats 10 to move towards each other, so that the cleaning rollers 11 inside the fixed seats 10 are pressed against and fitted to the strip steel. The cleaning rollers 11 are made of high-viscosity and wear-resistant butyl rubber, and can effectively adsorb and remove the dust, oil stains and tiny impurities attached to the surface of the strip steel. Therefore, when the strip steel enters the main body 1 at a stable speed, the cleaning rollers 11 will rotate synchronously to comprehensively and effectively clean the upper and lower surfaces of the strip steel, reducing the rolling defects and product quality problems caused by the existence of impurities, ensuring the production quality. The first motor 2 is started. The output end of the first motor 2 will start one of the rotating rods 19 to rotate. This rotating rod 19 will drive the other rotating rod 19 to rotate through the transmission belt 20. Both rotating rods 19 will drive the double-threaded transmission rod 3 to rotate synchronously. The double-threaded transmission rod 3 will drive the two moving blocks 4 to move vertically in opposite or opposite directions, so as to drive the second motor 5 and the cold rolling rollers 6 to move synchronously. The sliding fit between the guide blocks 7 and the guide grooves 8 ensures the stable movement of the cold rolling rollers 6. By controlling the distance between the two cold rolling rollers 6, strip steels of different thicknesses can be adapted, improving the applicability. When the strip steel is rolled, the water pump 18 is started. The water pump 18 can transport the water flow in the water cavity 15 to the nozzle seat 14 through the folding telescopic pipe 17, and spray out from the nozzles at the lower end of the nozzle seat 14, which can cool the strip steel and ensure the mechanical properties and surface quality of the strip steel. By starting the second electric telescopic rod 13, the nozzle seat 14 can be moved to the upper end of the strip steel, ensuring the cooling relationship. The folding telescopic pipe 17 will expand and contract synchronously to ensure the stable transportation of the water flow. The cooled water flow will re-enter the inside of the water cavity 15 under the action of gravity. The filter plate 16 can prevent impurities from entering the water cavity 15. The water flow can be cooled by an external cooling mechanism such as a heat exchanger (prior art, not shown in the figure), realizing the recycling of the water flow, thereby saving water resources.

[0038] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A rolling mill for strip steel production, comprising a main body (1), with two cold rolling rolls (6) arranged on the upper and lower sides inside the main body (1), characterized in that: It further includes a double-threaded drive rod (3), which is rotatably arranged on the front and rear sides on one side of the main body (1), and a moving block (4) is threadedly connected to the upper side of the outside of the double-threaded drive rod (3); It further includes connecting blocks (9), which are welded to one side of the upper and lower sides of the front end of the main body (1), and first electric telescopic rods (12) are arranged inside the connecting blocks (9). Fixed seats (10) are arranged on the upper and lower sides in front of the main body (1), and the fixed seats (10) are connected to the output ends of the first electric telescopic rods (12); It further includes a water cavity (15), which is arranged at the rear side inside the main body (1). A nozzle seat (14) is arranged directly above the water cavity (15). A second electric telescopic rod (13) is arranged at the upper end of the nozzle seat (14), and the second electric telescopic rod (13) is fixedly connected to the main body (1).

2. The rolling mill for strip steel production according to claim 1, characterized in that: A first motor (2) is arranged above one of the double-threaded drive rods (3). Rotating rods (19) are arranged at the upper ends of the double-threaded drive rods (3), and one of the rotating rods (19) is drivingly connected to the first motor (2) through a coupling. The rotating rods (19) are drivingly connected to each other through a transmission belt (20).

3. The rolling mill for strip steel production according to claim 1, characterized in that: Second motors (5) are installed on the inner sides of the moving blocks (4), and the output ends of the second motors (5) are drivingly connected to the cold rolling rolls (6) through couplings.

4. The rolling mill for strip steel production according to claim 1, characterized in that: A guide groove (8) is formed on one side inside the main body (1). Two guide blocks (7) are slidably arranged on the upper and lower sides inside the guide groove (8), and the guide blocks (7) are rotatably connected to the cold rolling rolls (6) through rotating shafts.

5. The rolling mill for strip steel production according to claim 1, characterized in that: A water pump (18) is arranged on one side of the main body (1), and the water pump (18) is connected to the water cavity (15). The water pump (18) is connected to the nozzle seat (14) through a folding telescopic pipe (17).

6. A rolling mill for strip steel production according to claim 1, characterized in that: A filter plate (16) is arranged on the upper side inside the water cavity (15).

7. A rolling mill for strip steel production according to claim 1, characterized in that: A number of equally spaced cleaning rolls (11) are rotatably arranged inside the fixed seats (10).

Images