Continuous casting rolling mill for grids
By adopting a combined design of roll group bracket, upper roller assembly, lower roller assembly and electric push rod in the grid continuous casting mill, high-precision adjustment of roll gap is achieved, and the problem of fixed roll thickness in the prior art is solved, and the scope of application of the rolling mill and the quality of the grid is improved.
Patent Information
- Application Number
- CN202510429766.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2025-07-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The rolling thickness of existing grid continuous casting mills is fixed, making it difficult to meet the needs of grids of different specifications, resulting in a narrow range of application and difficulty in effectively compressing the internal air holes.
The combined design of the roller group bracket, the upper roller assembly, the lower roller assembly, the gap adjustment assembly and the electric push rod is adopted. The first transmission block is driven to slide along the gap adjustment guide rail through the electric push rod, and the second transmission block is driven to slide along the lifting guide rail to achieve high-precision adjustment of the roll gap.
High-precision adjustment of roll gap is achieved, the application scope of the rolling mill and the quality of continuous casting grids are improved, and the thickness of the grids and the internal air holes are effectively controlled.
Smart Images
Figure CN120325697A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of lead-acid battery production and manufacturing, and particularly relates to a continuous casting and rolling mill for grids. Background Art
[0002] The grid plays a role of conducting electricity and serving as a skeleton in the plate of the lead-acid battery, and is a key material for manufacturing the lead-acid battery. In the continuous casting process of the grid, since the grid is formed by casting, there are situations where the overall thickness is inconsistent and there are tiny air holes inside. Therefore, it is necessary to roll the grid to adjust the thickness and compress the internal air holes. At present, the rolling thickness of the existing grid rolling mill is usually fixed (determined by the gap size between two rolling rolls), resulting in difficulty in changing specifications and a narrow application range. Summary of the Invention
[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a continuous casting and rolling mill for grids, which can achieve high-precision adjustment of the roll gap to improve the application range of the rolling mill and the quality of continuously cast grids.
[0004] The purpose of the present invention is achieved by adopting the following technical solutions: A continuous casting and rolling mill for grids, comprising: A roll group support, which is fixed with a lifting guide rail; An upper roll assembly, which includes an upper roll bearing seat and an upper rolling roll. The upper rolling roll is rotatably installed on the upper roll bearing seat through an upper roll bearing, and the upper roll bearing seat is fixed to the roll group support; A lower roll assembly, which includes a lower roll bearing seat and a lower rolling roll. The lower rolling roll is rotatably installed on the lower roll bearing seat through a lower roll bearing. The axial direction of the lower rolling roll is parallel to the axial direction of the upper rolling roll. The lower roll bearing seat is located below the upper roll bearing seat and is slidably matched with the lifting guide rail; A gap adjustment assembly, which includes a gap adjustment guide rail, a first transmission block, and a second transmission block. The gap adjustment guide rail is fixed to the roll group support and is perpendicular to the lifting guide rail. The first transmission block is slidably installed on the gap adjustment guide rail. The first transmission block is provided with a first transmission inclined surface. The second transmission block is fixed to the lower roll bearing seat. The second transmission block is provided with a second transmission inclined surface. The second transmission inclined surface is located above the first transmission inclined surface and is slidably matched with the first transmission inclined surface; An electric push rod, whose output shaft is connected to the first transmission block. When the electric push rod drives the first transmission block to slide along the gap adjustment guide rail, the second transmission block displaces in the vertical direction, and then drives the lower roll bearing seat to slide along the lifting guide rail.
[0005] Furthermore, the roll group support includes a support top plate, a support vertical plate, and a support bottom plate. The top end and the bottom end of the support vertical plate are respectively fixed to the support top plate and the support bottom plate. The lifting guide rail is fixed on the support vertical plate, the gap adjustment guide rail is fixed on the support bottom plate, and the upper roll bearing seat is fixedly connected to the support top plate.
[0006] Further, a sliding groove matching with the lifting guide rail is arranged on the side of the lower roll bearing seat; a sliding groove matching with the lifting guide rail is arranged on the side of the upper roll bearing seat.
[0007] Further, the lower roll bearing seat is provided with a bearing groove for assembling the lower roll bearing. A lubricating oil groove is arranged on the bottom wall of the bearing groove. The lower roll bearing seat is provided with an oil filling hole. One end of the oil filling hole communicates with the outside of the lower roll bearing seat, and the other end communicates with the lubricating oil groove; The upper roll bearing seat is provided with a bearing groove for assembling the upper roll bearing. A lubricating oil groove is arranged on the bottom wall of the bearing groove. The upper roll bearing seat is provided with an oil filling hole. One end of the oil filling hole communicates with the outside of the upper roll bearing seat, and the other end communicates with the lubricating oil groove.
[0008] Further, the grid continuous casting rolling mill further includes a roll group motor and a double-output shaft speed reducer. The output shaft of the roll group motor is connected to the input shaft of the double-output shaft speed reducer. The two output shafts of the double-output shaft speed reducer are respectively connected to the upper rolling roll and the lower rolling roll.
[0009] Further, the grid continuous casting rolling mill further includes a rolling mill chassis. The roll group motor, the double-output shaft speed reducer and the roll group support are all fixed on the rolling mill chassis.
[0010] Further, the two output shafts of the double-output shaft speed reducer are respectively connected to the upper rolling roll and the lower rolling roll through elastic couplings.
[0011] Further, the grid continuous casting rolling mill further includes a feeding guiding assembly for guiding the grid between the upper rolling roll and the lower rolling roll. The feeding guiding assembly includes a guide plate support, a left guide plate and a right guide plate. The left guide plate and the right guide plate are arranged side by side on the guide plate support. The left guide plate and the right guide plate are inclined. A left limiting edge is arranged on the left edge of the left guide plate, and a right limiting edge is arranged on the right edge of the right guide plate.
[0012] Further, a transverse movement guide rail, a left plate adjusting screw and a right plate adjusting screw are installed on the guide plate support. The left plate adjusting screw and the right plate adjusting screw are both parallel to the transverse movement guide rail. The left guide plate and the right guide plate are respectively in sliding fit with the transverse movement guide rail through transverse movement sliders. The left plate adjusting screw is sleeved with a left plate adjusting nut which forms a screw transmission fit with it. One end of the left plate adjusting screw is provided with a left plate adjusting handle. The right plate adjusting screw is sleeved with a right plate adjusting nut which forms a screw transmission fit with it. One end of the right plate adjusting screw is provided with a right plate adjusting handle.
[0013] Further, the slopes of the first transmission inclined plane and the second transmission inclined plane are 1:25 to 1:75; the electric push rod adopts a servo electric push rod.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The grid continuous casting rolling mill provided by the present invention includes a roll group bracket, an upper roll assembly, a lower roll assembly, a gap adjustment assembly, and an electric push rod. The principle of gap adjustment is that when the electric push rod drives the first transmission block to slide along the gap adjustment guide rail, based on the transmission effect of the first transmission inclined plane and the second transmission inclined plane, the second transmission block displaces in the up and down direction, and the second transmission block will drive the lower roll bearing seat to slide along the lifting guide rail, thereby causing the lower roll installed on the lower roll bearing seat to displace in the up and down direction, resulting in a change in the distance between the upper roll and the lower roll (i.e., the roll gap).
[0015] As can be seen from the above, the grid continuous casting rolling mill of the present invention can achieve high-precision adjustment of the roll gap through the telescopic movement of the electric push rod, so as to expand the applicable range of the rolling mill and improve the quality of the continuously cast grid. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the grid continuous casting rolling mill according to an embodiment of the present invention; Figure 2 is a side view of the grid continuous casting rolling mill according to an embodiment of the present invention; Figure 3 is a schematic diagram of the gap adjustment principle of the grid continuous casting rolling mill according to an embodiment of the present invention; Figure 4 is a schematic structural diagram of the roll group bracket of the grid continuous casting rolling mill according to an embodiment of the present invention; Figure 5 is a schematic structural diagram of the lower roll bearing seat of the grid continuous casting rolling mill according to an embodiment of the present invention; Figure 6 is a side view of the lower roll bearing seat of the grid continuous casting rolling mill according to an embodiment of the present invention; Figure 7 is Figure 6 a cross-sectional view of the shown lower roll bearing seat along the A-A direction; Figure 8 is a schematic structural diagram of the feeding guide assembly of the grid continuous casting rolling mill according to an embodiment of the present invention; Figure 9 is Figure 8 a schematic structural diagram of the guide plate bracket of the shown feeding guide assembly.
[0017] In the figure: 100, rolling mill chassis; 200, roll group motor; 300, double-output shaft reducer; 310, elastic coupling; 400, roll group bracket; 410, lifting guide rail; 420, bracket top plate; 430, bracket vertical plate; 440, bracket bottom plate; 500, upper roll assembly; 510, upper roll bearing seat; 520, upper roll; 600. Lower roll assembly; 610. Lower roll bearing housing; 611. Slide groove; 612. Bearing groove; 613. Lubricating oil groove; 614. Oil filling hole; 620. Lower roll 700. Clearance adjusting assembly; 710. Clearance adjusting guide rail; 720. First transmission block; 721. First transmission inclined surface; 730. Second transmission block; 731. Second transmission inclined surface 800. Electric push rod 900. Feed guiding assembly; 910. Guide plate support; 911. Cross - movement guide rail; 912. Cross - movement slider; 913. Left plate adjusting screw; 914. Left plate adjusting nut; 915. Left plate adjusting handle; 916. Right plate adjusting screw; 917. Right plate adjusting nut; 918. Right plate adjusting handle; 920. Left side guide plate; 921. Left side limiting edge; 930. Right side guide plate; 931. Right side limiting edge Detailed implementation manners
[0018] Next, in combination with the accompanying drawings and the detailed implementation manners, the present invention will be further described. It should be noted that, on the premise of no conflict, any combination can be formed among the following described embodiments or technical features to form new embodiments.
[0019] Reference Figures 1-9 , the embodiment of the present invention provides a continuous casting rolling mill for grid.
[0020] The continuous casting rolling mill for grid includes a rolling mill chassis 100, a roll group motor 200, a double - output - shaft reduction gear 300, a roll group support 400, an upper roll assembly 500, a lower roll assembly 600, a clearance adjusting assembly 700, an electric push rod 800, and a feed guiding assembly 900. The roll group motor 200, the double - output - shaft reduction gear 300, and the roll group support 400 are fixed on the rolling mill chassis 100.
[0021] Among them, the roll group support 400 is fixed with a lifting guide rail 410.
[0022] The upper roll assembly 500 includes an upper roll bearing housing 510 and an upper roll 520. The upper roll 520 is rotatably installed in the upper roll bearing housing 510 through an upper roll bearing, and the upper roll bearing housing 510 is fixed to the roll group support 400.
[0023] The lower roll assembly 600 includes a lower roll bearing housing 610 and a lower roll 620. The lower roll 620 is rotatably installed in the lower roll bearing housing 610 through a lower roll bearing. The axial direction of the lower roll 620 is parallel to the axial direction of the upper roll 520. The lower roll bearing housing 610 is located below the upper roll bearing housing 510 and is in sliding fit with the lifting guide rail 410.
[0024] The gap adjustment assembly 700 includes a gap adjustment guide rail 710, a first transmission block 720, and a second transmission block 730. The gap adjustment guide rail 710 is fixed to the roll group support 400 and is perpendicular to the lifting guide rail 410. The first transmission block 720 is slidably mounted on the gap adjustment guide rail 710. The first transmission block 720 is provided with a first transmission inclined surface 721. The second transmission block 730 is fixed to the lower roll bearing block 610. The second transmission block 730 is provided with a second transmission inclined surface 731. The second transmission inclined surface 731 is above the first transmission inclined surface 721 and is in sliding cooperation with the first transmission inclined surface 721.
[0025] The output shaft of the electric push rod 800 is connected to the first transmission block 720. When the electric push rod 800 drives the first transmission block 720 to slide along the gap adjustment guide rail 710, the second transmission block 730 displaces in the up and down direction, and then the second transmission block 730 drives the lower roll bearing block 610 to slide along the lifting guide rail 410.
[0026] The output shaft of the roll group motor 200 is connected to the input shaft of the double-output shaft speed reducer 300. The two output shafts of the double-output shaft speed reducer 300 are respectively connected to the upper roll 520 and the lower roll 620. Among them, the two output shafts of the double-output shaft speed reducer 300 are respectively connected to the upper roll 520 and the lower roll 620 through elastic couplings 310. Using elastic couplings 310 (such as constant velocity joints) can compensate for the deviation of the shafts, so that when the lower roll 620 makes a slight up and down adjustment, the rolling mill can still work normally.
[0027] Specifically, in the grid continuous casting rolling mill of the embodiment of the present invention, the roll group support 400 includes a support top plate 420, a support vertical plate 430, and a support bottom plate 440. The top and bottom ends of the support vertical plate 430 are respectively fixed to the support top plate 420 and the support bottom plate 440. The lifting guide rail 410 is fixed to the support vertical plate 430, and the gap adjustment guide rail 710 is fixed to the support bottom plate 440. The upper roll bearing block 510 is fixedly connected to the support top plate 420.
[0028] Among them, the side of the lower roll bearing block 610 is provided with a chute 611 that matches the lifting guide rail 410. The chute 611 of the lower roll bearing block 610 is mainly used to achieve the slight up and down adjustment of the lower roll bearing block 610 and realize the adjustment of the roll gap. In addition, the side of the upper roll bearing block 510 is also provided with a chute that matches the lifting guide rail 410. The chute of the upper roll bearing block 510 mainly plays a role in positioning and facilitating installation, ensuring that the positions of the upper roll bearing block 510 and the lower roll bearing block 610 are aligned.
[0029] Specifically, the lower roll bearing housing 610 adopts an upper and lower split structure, which is convenient for installation and disassembly. The lower roll bearing housing 610 is provided with a bearing groove 612 for assembling the lower roll bearing. The bottom wall of the bearing groove 612 is provided with a lubricating oil groove 613. The lower roll bearing housing 610 is provided with an oil filling hole 614. One end of the oil filling hole 614 communicates with the outside of the lower roll bearing housing 610, and the other end communicates with the lubricating oil groove 613. By providing the oil filling hole 614 and the lubricating oil groove 613, it helps to improve the service life of the upper roll bearing.
[0030] The structure of the upper roll bearing housing 510 is similar to that of the lower roll bearing housing 610. Specifically, the upper roll bearing housing 510 adopts an upper and lower split structure, which is convenient for installation and disassembly. The upper roll bearing housing 510 is provided with a bearing groove for assembling the upper roll bearing. The bottom wall of the bearing groove is provided with a lubricating oil groove. The upper roll bearing housing is provided with an oil filling hole. One end of the oil filling hole communicates with the outside of the upper roll bearing housing, and the other end communicates with the lubricating oil groove. By providing the oil filling hole and the lubricating oil groove, it helps to improve the service life of the upper roll bearing.
[0031] In the grid continuous casting rolling mill according to the embodiment of the present invention, the feeding and guiding assembly 900 is used to guide the grid to be rolled between the upper roll 520 and the lower roll 620. Among them, the feeding and guiding assembly 900 includes a guide plate bracket 910, a left guide plate 920 and a right guide plate 930. The left guide plate 920 and the right guide plate 930 are arranged side by side on the guide plate bracket 910. The left guide plate 920 and the right guide plate 930 are inclined. A left limiting edge 921 is provided on the left edge of the left guide plate 920, and a right limiting edge 931 is provided on the right edge of the right guide plate 930.
[0032] Preferably, the guide plate bracket 910 is installed with a transverse movement guide rail 911, a left plate adjusting screw 913 and a right plate adjusting screw 916. The left plate adjusting screw 913 and the right plate adjusting screw 916 are both parallel to the transverse movement guide rail 911. The left guide plate 920 and the right guide plate 930 are respectively in sliding fit with the transverse movement guide rail 911 through transverse movement sliders 912. The left plate adjusting screw 913 is sleeved with a left plate adjusting nut 914 that forms a threaded transmission fit with it. One end of the left plate adjusting screw 913 is provided with a left plate adjusting handle 915. The right plate adjusting screw 916 is sleeved with a right plate adjusting nut 917 that forms a threaded transmission fit with it. One end of the right plate adjusting screw 916 is provided with a right plate adjusting handle 918. Among them, the positions and distances of the left guide plate 920 and the right guide plate 930 can be adjusted through the left plate adjusting handle 915 and the right plate adjusting handle 918, which can adapt to the specifications of various grid feedings and can facilitate the parallel centering of the grid to enter between the upper roll 520 and the lower roll 620.
[0033] The gap adjustment principle of the grid continuous casting rolling mill according to the embodiment of the present invention is as follows: when the electric push rod 800 drives the first transmission block 720 to slide along the gap adjustment guide rail 710, based on the transmission effect of the first transmission inclined surface 721 and the second transmission inclined surface 731, the first transmission block 720 applies force to the second transmission block 730 to cause the second transmission block 730 to displace in the up and down direction. The second transmission block 730 will drive the lower roll bearing block 610 to slide along the lifting guide rail 410, and further cause the lower roll 620 installed on the lower roll bearing block 610 to displace in the up and down direction, resulting in a change in the distance between the upper roll 520 and the lower roll 620 (i.e., the roll gap).
[0034] As can be seen from the above, the grid continuous casting rolling mill according to the embodiment of the present invention can achieve high-precision adjustment of the roll gap through the telescopic movement of the electric push rod 800, thereby effectively expanding the applicable range of the rolling mill. Among them, the slopes of the first transmission inclined surface 721 and the second transmission inclined surface 731 can be 1:25 to 1:75. For example, when the ratio is 1:50, that is, when the first transmission block 720 moves 50 mm along the gap adjustment guide rail 710, the second transmission block 730 moves 1 mm in the up and down direction. The electric push rod 800 can be a servo electric push rod. Generally, the accuracy of existing servo electric push rods can be easily controlled within 0.1 mm. Converted to the up and down movement accuracy of the lower roll 620, it is 0.1 mm / 50 = 0.002 mm, achieving very high-precision control.
[0035] When the continuously cast grid enters between the upper roll 520 and the lower roll 620 in parallel, these two rolls will traction the grid through the rolling mill. At the same time, the gap size between the rolls will be precisely controlled. Usually, the gap size between the rolls is smaller than the maximum thickness size of the grid before rolling. This ratio is generally 0.7:1 to 0.9:1, so as to roll the maximum thickness of the grid to the gap size between the opposing rolls. Through high-precision control of the gap size, the rolling thickness can be adjusted to a better range, thereby improving the quality of the continuously cast grid.
[0036] In summary, the grid continuous casting rolling mill according to the embodiment of the present invention can achieve high-precision adjustment of the roll gap through the telescopic movement of the electric push rod, thereby effectively expanding the applicable range of the rolling mill and the quality of the continuously cast grid.
[0037] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention fall within the scope of protection required by the present invention.
Claims
1. A continuous casting and rolling mill for grids, characterized in that, Comprising: A roll group bracket, on which a lifting guide rail is fixed; An upper roll assembly, which includes an upper roll bearing seat and an upper roll. The upper roll is rotatably installed on the upper roll bearing seat through an upper roll bearing, and the upper roll bearing seat is fixed to the roll group bracket; A lower roll assembly, which includes a lower roll bearing seat and a lower roll. The lower roll is rotatably installed on the lower roll bearing seat through a lower roll bearing. The axial direction of the lower roll is parallel to the axial direction of the upper roll. The lower roll bearing seat is located below the upper roll bearing seat and is slidably matched with the lifting guide rail; A gap adjusting assembly, which includes a gap adjusting guide rail, a first transmission block and a second transmission block. The gap adjusting guide rail is fixed to the roll group bracket and is perpendicular to the lifting guide rail. The first transmission block is slidably installed on the gap adjusting guide rail. The first transmission block is provided with a first transmission inclined surface. The second transmission block is fixed to the lower roll bearing seat. The second transmission block is provided with a second transmission inclined surface. The second transmission inclined surface is located above the first transmission inclined surface and is slidably matched with the first transmission inclined surface; An electric push rod, whose output shaft is connected to the first transmission block. When the electric push rod drives the first transmission block to slide along the gap adjusting guide rail, the second transmission block displaces in the up and down direction, and then drives the lower roll bearing seat to slide along the lifting guide rail.
2. The grid continuous casting and rolling mill according to claim 1, characterized in that, The roll group bracket includes a bracket top plate, a bracket vertical plate and a bracket bottom plate. The top end and the bottom end of the bracket vertical plate are respectively fixed to the bracket top plate and the bracket bottom plate. The lifting guide rail is fixed on the bracket vertical plate, the gap adjusting guide rail is fixed on the bracket bottom plate, and the upper roll bearing seat is fixedly connected to the bracket top plate.
3. The grid continuous casting and rolling mill according to claim 1, characterized in that, The side part of the lower roll bearing seat is provided with a chute matched with the lifting guide rail; the side part of the upper roll bearing seat is provided with a chute matched with the lifting guide rail.
4. The grid continuous casting and rolling mill according to claim 1, characterized in that, The lower roll bearing seat is provided with a bearing groove for assembling the lower roll bearing. The bottom wall of the bearing groove is provided with a lubricating oil groove. The lower roll bearing seat is provided with an oil filling hole. One end of the oil filling hole communicates with the outside of the lower roll bearing seat, and the other end communicates with the lubricating oil groove; The upper roll bearing seat is provided with a bearing groove for assembling the upper roll bearing. The bottom wall of the bearing groove is provided with a lubricating oil groove. The upper roll bearing seat is provided with an oil filling hole. One end of the oil filling hole communicates with the outside of the upper roll bearing seat, and the other end communicates with the lubricating oil groove.
5. The grid continuous casting and rolling mill according to claim 1, characterized in that, The grid continuous casting rolling mill further includes a roll group motor and a double-output shaft speed reducer. The output shaft of the roll group motor is connected to the input shaft of the double-output shaft speed reducer. The two output shafts of the double-output shaft speed reducer are respectively connected to the upper roll and the lower roll.
6. The grid continuous casting and rolling mill according to claim 5, characterized in that, The grid continuous casting rolling mill further includes a rolling mill chassis. The roll group motor, the double-output shaft speed reducer and the roll group bracket are all fixed on the rolling mill chassis.
7. The grid continuous casting and rolling mill according to claim 5, characterized in that The two output shafts of the double-output shaft speed reducer are respectively connected to the upper roll and the lower roll through elastic couplings.
8. The grid continuous casting and rolling mill according to claim 1, characterized in that, The grid continuous casting rolling mill further includes a feeding guiding assembly for guiding the grid between the upper roll and the lower roll. The feeding guiding assembly includes a guide plate bracket, a left guide plate and a right guide plate. The left guide plate and the right guide plate are arranged side by side on the guide plate bracket. The left guide plate and the right guide plate are inclined. The left edge of the left guide plate is provided with a left limiting edge, and the right edge of the right guide plate is provided with a right limiting edge.
9. The continuous casting and rolling mill for grid as claimed in claim 8, wherein The guide plate bracket is installed with a transverse movement guide rail, a left plate adjusting screw rod, and a right plate adjusting screw rod. Both the left plate adjusting screw rod and the right plate adjusting screw rod are parallel to the transverse movement guide rail. The left guide plate and the right guide plate are respectively in sliding fit with the transverse movement guide rail through transverse movement sliders. The left plate adjusting screw rod is sleeved with a left plate adjusting nut that forms a threaded transmission fit with it. One end of the left plate adjusting screw rod is provided with a left plate adjusting handle. The right plate adjusting screw rod is sleeved with a right plate adjusting nut that forms a threaded transmission fit with it. One end of the right plate adjusting screw rod is provided with a right plate adjusting handle.
10. The grid continuous casting and rolling mill according to claim 1, characterized in that, The slopes of the first transmission inclined plane and the second transmission inclined plane are 1:25 to 1:75; the electric push rod adopts a servo electric push rod.