A cold rolling mill feed device with automatic centering function

Abstract

The utility model relates to the field of cold rolling mill, specifically is a kind of cold rolling mill feed arrangement with automatic centering function, it includes: the shell of cold rolling mill and set its inside upper hydraulic rod, the lower side of the telescopic end of hydraulic rod and the inner lower side of shell are evenly provided with upper press roll and lower press roll respectively, the inner lower side of shell is provided with guide shell;By setting the guide rail in auxiliary feeding assembly and its inside slide, the staff can conveniently debug the spacing of two rollers according to different width steel belt, the stability and centring effect of steel belt when transmitting can be effectively improved, the applicability of overall device is also improved;By setting support plate and multiple independent movement and direction unrestricted ball, in the process that steel belt is guided from bias to center, the lower side of steel belt can be provided with consistent support with steel belt path, can avoid abrasion when steel belt is translated and adjusted.

Description

Technical Field

[0001] This utility model relates to the field of cold rolling mills, and in particular to a feeding device for a cold rolling mill with an automatic centering function. Background Technology

[0002] A cold rolling mill is a new type of equipment for cold rolling steel bars. This machine can process hot-rolled wire rods and coils with diameters between 6.5 mm and 12 mm into cold-rolled ribbed steel bars with finished diameters between 5 mm and 12 mm. Cold-rolled ribbed steel bars produced by this mill are a replacement for cold-drawn low-carbon steel wire in prestressed concrete components, and can replace Grade I steel bars in cast-in-place concrete structures, saving steel resources. It is one of the better types of cold-worked steel products.

[0003] A search revealed the Chinese patent "A Cold Rolling Mill for High-Hardness Stainless Steel Strip" (authorization announcement number CN221434381U). This utility model belongs to the technical field of steel strip processing equipment, specifically a cold rolling mill for high-hardness stainless steel strip. It includes a cold rolling mill housing, with multiple lower cold rolling rolls rotatably connected to the inner bottom of the housing. A top plate is fixedly connected to the top of the housing, and two hydraulic cylinders are mounted on the top plate. A protective frame is fixedly connected to the lower end of the hydraulic cylinder output shaft, and multiple upper cold rolling rolls are rotatably connected to the protective frame. A steel strip body is positioned between the lower and upper cold rolling rolls. A centering clamping component for centering and limiting the steel strip body is installed on the inner bottom of the cold rolling mill housing. This utility model achieves centering and limiting of the steel strip body by installing a centering clamping component on the inner bottom of the cold rolling mill, ensuring the stainless steel strip is in the middle of the cold rolling rolls and guaranteeing the pressing effect. This solves the problem of poor stainless steel strip pressing effect caused by the lack of centering and limiting function in current devices.

[0004] Although the aforementioned cold rolling mill can guide and center the steel strip using a centering clamping component, the adjustment distance of the centering clamping component is limited. When encountering some narrow steel strips, the cold rolling mill may not be able to center and limit their movement. At the same time, the overall path of the steel strip that was previously offset will change when it is guided by the limiting roller. Furthermore, the cold rolling mill is equipped with a single lower cold rolling roll located below the steel strip, and the cold rolling roll rotates longitudinally. Therefore, it is easy to cause a certain degree of wear when the steel strip is adjusted for horizontal displacement.

[0005] Therefore, a cold rolling mill feeding device with automatic centering function is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a cold rolling mill feeding device with automatic centering function to solve the above problems. This improves the problem that the cold rolling mill feeding device has a limited adjustment range, cannot be applied to steel strips of different specifications, and is prone to wear when adjusting the position of the steel strip.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a cold rolling mill feeding device with automatic centering function, comprising: a cold rolling mill outer shell and a hydraulic rod disposed on the upper inner side therein, an upper pressure roller and a lower pressure roller respectively disposed below the telescopic end of the hydraulic rod and on the lower inner side of the outer shell, and a guide shell disposed on the lower inner side of the outer shell;

[0008] An auxiliary feeding assembly is disposed at the lower inner part of the guide shell;

[0009] The auxiliary feeding assembly includes two horizontally arranged guide rails, each with a support plate on opposite sides, and ball bearings in the support plate.

[0010] Preferably, the auxiliary feeding assembly further includes a connecting plate fixed inside the lower part of the guide housing, and the guide rail and the support plate are both fixed above the connecting plate.

[0011] Preferably, the guide rail is provided with a slide block, and a telescopic shell is fixedly connected above the slide block in the guide rail. By setting the slide block in conjunction with the guide rail, it is convenient for the staff to use the guide rail to adjust the position of the roller. The telescopic shell is a large shell with a small shell inside. There is friction between the small shell and the large shell. This friction can be used to achieve the effect of damping the roller, which can effectively counteract the vibration generated by the steel strip during cold rolling.

[0012] Preferably, each of the two telescopic shells has a movable shell on one side opposite to the other. A roller is movably connected to the movable shell via a rotating shaft. The surface of the roller is provided with a semi-circular groove. By setting the roller in conjunction with the semi-circular groove, not only can the side of the steel strip be guided, but the steel strip can also be horizontally limited.

[0013] Preferably, the telescopic shell is provided with a spring sheet, the spring sheet is made of stainless steel, and the spring sheet is designed in a vertical Z-shape. By setting the spring sheet, the spring sheet is made of stainless steel and has a certain degree of elasticity, which can offset the vibration generated by the steel strip during cold rolling.

[0014] Preferably, the surface of the support plate has a groove, the groove is spherically shaped, and the ball bearing is located in the groove.

[0015] Preferably, a guide plate is provided on the lower inner side of the guide shell. The guide plate has a right-angled triangle design when viewed from the front, and the guide end of the guide plate corresponds to the lower pressure roller.

[0016] The beneficial effects of this utility model are:

[0017] 1. By setting the guide rail and its internal slide in the auxiliary feeding component, the staff can easily adjust the distance between the two rollers according to the steel belt of different widths, which can effectively improve the stability and centering effect of the steel belt during transmission, and also improve the applicability of the overall device.

[0018] 2. By setting up a support plate and multiple independently moving and directionally unrestricted balls, support can be provided below the steel belt in line with the path of the steel belt as the steel belt is guided from the bias to the center, which can prevent wear of the steel belt during translation adjustment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model;

[0021] Figure 3 This is a schematic diagram of the auxiliary feeding assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the telescopic shell of this utility model.

[0023] In the diagram: 1. Outer shell; 2. Hydraulic rod; 3. Upper pressure roller; 4. Guide shell; 5. Guide plate; 6. Lower pressure roller; 7. Auxiliary feeding assembly; 701. Connecting plate; 702. Support plate; 703. Ball bearing; 704. Guide rail; 705. Telescopic shell; 706. Movable shell; 707. Roller; 708. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In practical implementation: such as Figure 1-4 As shown, a cold rolling mill feeding device with automatic centering function includes: a cold rolling mill outer shell 1 and a hydraulic rod 2 disposed on the upper inner side of the cold rolling mill. An upper pressure roller 3 and a lower pressure roller 6 are respectively disposed below the telescopic end of the hydraulic rod 2 and on the lower inner side of the outer shell 1. A guide shell 4 is disposed on the lower inner side of the outer shell 1.

[0026] Auxiliary feeding component 7 is located inside the lower part of guide shell 4;

[0027] like Figure 2 , Figure 3 and Figure 4 As shown, the auxiliary feeding assembly 7 includes two horizontally arranged guide rails 704, and a support plate 702 is provided on opposite sides of the two guide rails 704. A ball bearing 703 is provided in the support plate 702. The auxiliary feeding assembly 7 also includes a connecting plate 701 fixed inside the lower part of the guide shell 4. The guide rails 704 and the support plate 702 are both fixed above the connecting plate 701. A slide is provided in the guide rail 704, and a telescopic shell 705 is fixedly connected above the slide in the guide rail 704. A movable shell 706 is provided on opposite sides of the two telescopic shells 705. A roller 707 is movably connected in the movable shell 706 through a rotating shaft. A semi-circular groove is opened on the surface of the roller 707. A groove is opened on the surface of the support plate 702. The groove is spherically designed, and the ball bearing 703 is located in the groove.

[0028] First, the worker extends a section of steel strip from the steel coil and places this section of steel strip above the two guide rails 704. Then, the worker can use the guide rails 704 and the slides to synchronously adjust the distance between the two sets of rollers 707 until the inner wall of the semi-circular groove of the roller 707 contacts the side of the steel strip. Then, the guide rails 704 control the distance between the two slides and the edge of the guide rails 704 to keep them consistent. At this time, the steel strip will be adjusted to be centered.

[0029] It then enters the outer casing 1 and is cold-rolled by the upper pressure roller 3 and the lower pressure roller 6;

[0030] When the steel belt is adjusted from its previous bias to center, the multiple independently moving balls 703 below the steel belt, whose movement direction is not restricted, can provide forward support along the direction of the steel belt's translation adjustment, which can reduce the wear of the steel belt during adjustment.

[0031] It should be noted that the aforementioned guide rail 704 is an electric guide rail 704. The working principle of the guide rail 704 cooperating with the slide to transfer the position of the roller 707 is as follows: First, the electric guide rail 704 drives the slide to move smoothly along the guide rail 704 via an electric motor, usually through a lead screw, belt, or gear transmission method. When the electric drive system is started, the motor causes the slide to move back and forth along the guide rail 704 through a transmission device. The slide then drives the roller 707 to transfer its position through the telescopic housing 705 and the movable housing 706. The slide is usually equipped with a feedback system, such as an encoder or position sensor, to monitor the position of the slide in real time, ensuring that the slide moves accurately to the designated position. The feedback signal is sent back to the control system, which adjusts the speed and direction of the electric drive device based on these signals, thereby achieving precise control of the slide's position and ensuring that the item remains in the predetermined horizontal position during the adjustment process.

[0032] like Figure 4 As shown, a spring 708 is provided in the telescopic shell 705. The spring 708 is made of stainless steel and is designed in a vertical Z-shape.

[0033] The steel strip will vibrate to a certain extent during cold rolling. The vibration force will be transmitted to the spring 708. The spring 708 in the telescopic shell 705 will cancel out the vibration force. At the same time, the friction between the telescopic shells 705 can achieve a certain damping effect, which can maintain the positional accuracy of the steel strip during cold rolling and reduce the phenomenon of steel strip positional deviation caused by vibration.

[0034] A guide plate 5 is provided on the lower inner side of the guide shell 4. The guide plate 5 has a right-angled triangle design when viewed from the front. The guide end of the guide plate 5 corresponds to the lower pressure roller 6.

[0035] Working principle: In actual use, the operator first extends a section of steel strip from the steel coil and places this section of steel strip above the two guide rails 704. Then, the operator uses the guide rails 704 in conjunction with the slides to synchronously adjust the spacing of the two sets of rollers 707 until the inner wall of the semi-circular groove of the roller 707 contacts the side of the steel strip. Then, the guide rails 704 control the distance between the two slides and the edge to be consistent. At this time, the steel strip will be adjusted to be centered, and then enter the outer casing 1 and is cold rolled by the upper pressure roller 3 and the lower pressure roller 6. When the steel strip is from the previous bias... When the strip is adjusted to the center, the multiple independently moving balls 703 below the strip, whose movement direction is not restricted, can provide directional support along the direction of the strip's translation adjustment. This reduces wear on the strip during adjustment. At the same time, the strip will vibrate to a certain extent during cold rolling. The springs 708 inside the telescopic shell 705 will cancel out the vibration force. Meanwhile, the friction between the telescopic shells 705 can achieve a certain damping effect, which can maintain the accuracy of the strip's position during cold rolling and reduce the phenomenon of strip position deviation caused by vibration.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding device for a cold rolling mill with automatic centering function, characterized in that, include: The outer shell (1) of the cold rolling mill and the hydraulic rod (2) set inside the upper part therein, the lower part of the extension end of the hydraulic rod (2) and the lower part of the inner part of the outer shell (1) are respectively provided with an upper pressure roller (3) and a lower pressure roller (6), and the lower part of the inner part of the outer shell (1) is provided with a guide shell (4). An auxiliary feeding assembly (7) is disposed on the inner lower part of the guide shell (4); The auxiliary feeding assembly (7) includes two horizontally arranged guide rails (704), and each of the two guide rails (704) has a support plate (702) on its opposite side, and the support plate (702) is provided with a ball bearing (703).

2. The feeding device for a cold rolling mill with automatic centering function according to claim 1, characterized in that: The auxiliary feeding assembly (7) also includes a connecting plate (701) fixed inside the guide shell (4) and below. The guide rail (704) and the support plate (702) are both fixed above the connecting plate (701).

3. The feeding device for a cold rolling mill with automatic centering function according to claim 1, characterized in that: A slide block is provided in the guide rail (704), and a telescopic shell (705) is fixedly connected above the slide block in the guide rail (704).

4. A cold rolling mill feeding device with automatic centering function according to claim 1, characterized in that: Each of the two telescopic shells (705) has a movable shell (706) on one side opposite to the other. A roller (707) is movably connected to the movable shell (706) via a rotating shaft. A semi-circular groove is formed on the surface of the roller (707).

5. A cold rolling mill feeding device with automatic centering function according to claim 4, characterized in that: The telescopic shell (705) is provided with a spring piece (708), the spring piece (708) is made of stainless steel, and the spring piece (708) is designed in a vertical Z-shape.

6. A cold rolling mill feeding device with automatic centering function according to claim 1, characterized in that: The surface of the support plate (702) is provided with a groove, the groove is spherically designed, and the ball (703) is located in the groove.

7. A cold rolling mill feeding device with automatic centering function according to claim 1, characterized in that: A guide plate (5) is provided on the lower inner side of the guide shell (4). The guide plate (5) has a right-angled triangle design when viewed from the front. The guide end of the guide plate (5) corresponds to the lower pressure roller (6).

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