A cold rolling mill plate flattening device
By designing a plate leveling device for cold rolling mills, the lifting and lowering adjustment of the rolls and the central support are realized, which solves the problem of stress concentration at the roll shaft end and improves the stability and service life of the rolls.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI DINGYI METALLURGY SCI & TECH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-14
AI Technical Summary
During the rolling process, the ends of the roll shafts are prone to breakage due to stress concentration, which affects the service life of the rolls.
A cold rolling mill plate leveling device was designed. Through structures such as a roll pitch adjustment base, a roll support frame, and a guide slide, the device realizes the lifting adjustment and position stability control of the rolls. The support top wheel supports the middle of the rolls to avoid stress concentration.
It effectively prevents damage and breakage of the shafts at both ends of the roll, ensuring the stability and service life of the roll and improving the rolling smoothness.
Smart Images

Figure CN224487153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold rolling mill technology, and in particular to a cold rolling mill plate leveling device. Background Technology
[0002] After being cut, cold-rolled strip steel needs to be leveled by a leveling device. The quality of the leveling determines the quality of the cold-rolled strip steel. During assembly or after operation, the relative positions of the upper and lower rolls of the cold rolling mill often need to be adjusted. Currently, in the machining industry, rolls used for rolling sheet metal are typically mounted on both ends of their shafts. During the rolling process of the strip steel, the ends of the roll shafts bear significant stress, which can easily lead to damage and breakage, thus affecting the roll's usability. Utility Model Content
[0003] To address the aforementioned problems, this utility model proposes a cold rolling mill plate leveling device to more accurately solve the problems described above.
[0004] This utility model is achieved through the following technical solution:
[0005] This utility model proposes a plate leveling device for a cold rolling mill, including a roll pitch adjustment base, a roll support frame, and rolls. The roll pitch adjustment base has several horizontally spaced guide rails at its bottom. The top of the roll support frame has guide rods corresponding to the positions of each guide rail. Each guide rod on the top of the roll support frame is slidably connected to the interior of a guide rail on the roll pitch adjustment base, and the sliding direction of the guide rods within the guide rails is vertical. Bearing seats are provided on both sides of the bottom of the roll support frame, and the two shaft ends of the rolls are rotatably connected... The bottom of the roll support frame is integrally formed with several equally spaced support wheel plates, which are connected to a pair of bearing seats. A support top wheel is connected between each pair of adjacent support wheel plates. A gear spindle is provided inside the roll adjustment base and on one side of the guide slide. A lifting adjustment gear is provided on the gear spindle and at the position corresponding to each guide slide. An adjustment rack edge is provided on the side of the guide slide near the gear spindle. Each lifting adjustment gear on the gear spindle is engaged with the adjustment rack edge provided on the corresponding side of the guide slide.
[0006] Furthermore, 3-4 support top wheels are rotatably connected between every two adjacent support wheel plate frames, and several support top wheels are arranged on the top of the roll and roll in rolling contact with the roll.
[0007] Furthermore, the outer wall of the roll pitch adjustment base is provided with a pitch adjustment motor, and the output shaft end of the pitch adjustment motor is connected to one end of the gear spindle.
[0008] Furthermore, a limiting rack edge is provided on the side of the guide slide rod away from the adjusting rack edge, and an electrically controlled telescopic component is provided on the outer wall of the roll adjusting base side, corresponding to the position of each guide slide. The telescopic rod of the electrically controlled telescopic component extends horizontally inward, and a limiting slider is provided at the inner end of the telescopic rod of the electrically controlled telescopic component.
[0009] Furthermore, the limiting slider slides inside the roll pitch adjustment base, and the inner end of the limiting slider is provided with a limiting tooth end, which is engaged with the tooth groove of the limiting rack edge.
[0010] The beneficial effects of this utility model are:
[0011] 1. Under the drive of the adjustable pitch motor to the gear spindle, the adjustable pitch gear on the gear spindle meshes with the adjustable pitch rack on one side of the guide slide rod, thereby controlling the lifting and lowering adjustment of the roll connected to the bottom of the roll support frame. After the height position of the roll at the bottom of the roll support frame is adjusted, the telescopic rod of the electrically controlled telescopic component is extended until the limiting tooth end of the inner end of the limiting slider engages with the tooth groove of the limiting rack, thereby limiting the position of the guide slide rod inside the guide slide, that is, ensuring the stability of the position of the roll after adjustment, which is beneficial to the roll rolling of the steel strip smoothly.
[0012] 2. In the process of rolling steel strip by the roll, the present invention has a number of supporting top rollers arranged at the bottom of the roll support frame rolling against the top of the roll, which plays a supporting role in the middle of the roll, thereby greatly avoiding stress concentration at both ends of the roll shaft and effectively preventing damage and breakage at both ends of the roll shaft. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a partial schematic diagram of the three-dimensional structure of this utility model;
[0015] Figure 3 This is a side sectional view of the structure of this utility model;
[0016] Figure 4 This is a front view of a partial structure of the present invention.
[0017] In the diagram: 1. Roll pitch adjustment base; 101. Guide slide; 102. Gear spindle; 1021. Lifting and pitch adjustment gear; 1022. Pitch adjustment motor; 103. Electrically controlled telescopic component; 1031. Limiting slider; 2. Roll support frame; 201. Guide slide rod; 2011. Pitch adjustment rack edge; 2012. Limiting rack edge; 202. Bearing seat; 203. Support wheel plate frame; 2031. Support top wheel; 3. Roll. Detailed Implementation
[0018] 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.
[0019] Example 1
[0020] A cold rolling mill plate leveling device includes a roll pitch adjustment base 1, a roll support frame 2, and rolls 3. The roll pitch adjustment base 1 has several horizontally spaced guide rails 101 at its bottom. The roll support frame 2 has guide rods 201 at its top, corresponding to the positions of each guide rail 101. Each guide rod 201 is slidably connected to the interior of a guide rail 101 on the roll pitch adjustment base 1, with the sliding direction of the guide rods 201 within the guide rail 101 being perpendicular. Bearing seats 202 are located on both sides of the bottom of the roll support frame 2, and the two shaft ends of the rolls 3 are rotatably connected to a pair of bearing seats 202. Under the guidance of the guide rods 201 and the guide rails 101 on the roll pitch adjustment base 1, the roll support frame 2 can adjust the height of the rolls 3 connected to the bottom of the roll support frame 2.
[0021] Combination Figure 1 , Figure 2 and Figure 3 As shown, a gear spindle 102 is provided inside the roll pitch adjustment base 1 and on one side of the guide slide 101. A lifting pitch adjustment gear 1021 is provided on the gear spindle 102 and at the position corresponding to each guide slide 101. A pitch adjustment rack edge 2011 is provided on the side of the guide slide 201 near the gear spindle 102. Each lifting pitch adjustment gear 1021 on the gear spindle 102 is respectively engaged with the pitch adjustment rack edge 2011 provided on the corresponding side of the guide slide 201. A pitch adjustment motor 1022 is provided on the outer wall of the roll pitch adjustment base 1, and the output shaft end of the pitch adjustment motor 1022 is connected to one end of the gear spindle 102. Driven by the adjustable pitch motor 1022, the gear spindle 102 is driven to engage with the adjustable pitch rack side 2011 on the guide slide rod 201, thereby controlling the lifting and lowering adjustment of the roll 3 connected to the bottom of the roll support frame 2.
[0022] Combination Figure 2 and Figure 3As shown, a limiting rack edge 2012 is provided on the side of the guide slide rod 201 away from the adjusting rack edge 2011. An electrically controlled telescopic component 103 is provided on the outer wall of one side of the roll adjusting base 1, corresponding to the position of each guide slide 101. The telescopic rod of the electrically controlled telescopic component 103 extends horizontally inward, and a limiting slider 1031 is provided at the inner end of the telescopic rod. The limiting slider 1031 slides within the roll adjusting base 1, and a limiting tooth is provided at the inner end of the limiting slider 1031. After the height position of the roll 3 at the bottom of the roll support frame 2 is adjusted, the telescopic rod of the electrically controlled telescopic component 103 is extended until the limiting tooth at the inner end of the limiting slider 1031 engages with the tooth groove of the limiting rack edge 2012, thereby limiting the position of the guide slide rod 201 within the guide slide 101.
[0023] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Under the drive of the adjustable pitch motor 1022 to the gear spindle 102, the adjustable pitch gear 1021 on the gear spindle 102 is driven to mesh with the adjustable pitch rack edge 2011 on one side of the guide slide rod 201, thereby controlling the lifting and lowering adjustment of the roll 3 connected to the bottom of the roll support frame 2. After the height position of the roll 3 at the bottom of the roll support frame 2 is adjusted, the telescopic rod of the electrically controlled telescopic component 103 is extended until the limiting tooth end of the limiting slider 1031 engages with the tooth groove of the limiting rack edge 2012, thereby limiting the position of the guide slide rod 201 inside the guide slide 101, that is, ensuring the stability of the position of the roll 3 after adjustment, which is beneficial to the rolling of the steel strip by the roll 3.
[0024] Example 2
[0025] Combination Figure 2 , Figure 3 and Figure 4 As shown, the bottom of the roll support frame 2 is integrally formed with several equally spaced support wheel frames 203. A support top wheel 2031 is rotatably connected between every two adjacent support wheel frames 203, and 3-4 support top wheels 2031 are rotatably connected between every two adjacent support wheel frames 203. These support top wheels 2031 are located on the top of the roll 3 and roll in contact with it. During the rolling process of the roll 3 on the steel strip, the several arranged support top wheels 2031 at the bottom of the roll support frame 2 roll in contact with the top of the roll 3, providing support for the middle part of the roll 3.
[0026] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: In the process of rolling steel strip by the roll 3, the present invention uses a number of arranged support top wheels 2031 provided at the bottom of the roll support frame 2 to roll against the top of the roll 3, thereby playing a supporting role for the middle part of the roll 3, thus greatly avoiding stress concentration at both ends of the roll 3 and effectively preventing damage and breakage of the ends of the roll 3.
[0027] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.
Claims
1. A cold rolling mill plate leveling device, comprising a roll pitch adjustment base (1), a roll support frame (2), and rolls (3), characterized in that, The bottom of the roll pitch adjustment base (1) is provided with several horizontally spaced guide slides (101). The top of the roll support frame (2) is provided with guide slide rods (201) corresponding to the positions of each guide slide (101). Each guide slide rod (201) on the top of the roll support frame (2) is slidably connected to the interior of each guide slide (101) of the roll pitch adjustment base (1), and the sliding direction of the guide slide rod (201) in the guide slide (101) is vertical. The bottom of the roll support frame (2) is provided with bearing seats (202) on both sides, and the two shaft ends of the roll (3) are rotatably connected to a pair of bearing seats (202). The bottom of the roll support frame (2) is integrally formed with several A set of equally spaced support wheel plates (203) are connected by a support top wheel (2031) between each two adjacent support wheel plates (203). Inside the roller adjustment base (1) and on one side of the guide slide (101), there is a gear spindle (102). On the gear spindle (102) and corresponding to each guide slide (101), there is a lifting adjustment gear (1021). On the side of the guide slide (201) near the gear spindle (102), there is an adjustment rack edge (2011). Each lifting adjustment gear (1021) on the gear spindle (102) is engaged with the adjustment rack edge (2011) on the corresponding side of the guide slide (201).
2. The cold rolling mill plate leveling device according to claim 1, characterized in that, Three to four support rollers (2031) are rotatably connected between each two adjacent support roller frames (203), and several support rollers (2031) are located on the top of the roll (3) and roll against the roll (3).
3. The cold rolling mill plate leveling device according to claim 1, characterized in that, The outer wall of the roll pitch adjustment base (1) is provided with a pitch adjustment motor (1022), and the output shaft end of the pitch adjustment motor (1022) is connected to one end of the gear spindle (102) for transmission.
4. The cold rolling mill plate leveling device according to claim 1, characterized in that, The guide slide rod (201) has a limiting rack edge (2012) on the side away from the pitch adjustment rack edge (2011). On the outer wall of one side of the roll pitch adjustment base (1), an electrically controlled telescopic component (103) is provided at the position corresponding to each guide slide (101). The telescopic rod of the electrically controlled telescopic component (103) extends horizontally inward, and the inner end of the telescopic rod of the electrically controlled telescopic component (103) is provided with a limiting slider (1031).
5. A cold rolling mill plate leveling device according to claim 4, characterized in that, The limiting slider (1031) slides inside the roll pitch adjustment base (1). The inner end of the limiting slider (1031) is provided with a limiting tooth end, and the limiting tooth end is engaged with the tooth groove of the limiting rack edge (2012).