Aluminum plate machining cold-rolling mill capable of achieving automatic feeding

Abstract

The invention discloses an automatic feeding aluminum plate processing cold-rolling mill, and relates to the technical field of aluminum plate processing, the automatic feeding aluminum plate processing cold-rolling mill comprises a machine body, the top surface of the machine body is fixedly connected with a housing, the top end of the housing is provided with an AGC cylinder, the output end of the AGC cylinder is fixedly connected with a supporting roller, and the housing is provided with a lower working roller; the rolling device has the advantages that the distance between the upper working roll and the lower working roll can be adjusted according to rolling raw materials, it is guaranteed that the single-time compression thickness does not exceed 40%, manual real-time judgment is not needed, measurement errors are avoided, the rolling thickness can be rapidly adjusted, and the rolling efficiency is improved; meanwhile, rolling can be stopped immediately, manual observation is not needed, processing delay is avoided, material loss is reduced, the automation degree of the device is improved, rewinding of the cold rolling mill is controlled purely mechanically, participation of a plurality of control elements and servo motors is not needed, the risk of damage to the cold rolling mill is reduced, and cost input is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum plate processing, and specifically relates to a cold rolling mill for aluminum plate processing with automatic feeding. Background Art

[0002] The cold rolling process of aluminum plate processing is the core link of aluminum material finishing, and its technological process can be divided into the following stages: raw material preparation, rolling stage, annealing treatment and finishing process. In the rolling stage, the cast-rolled coil with a thickness of about 8 mm is used as the raw material, and it is rolled in multiple passes through a four-high irreversible cold rolling mill set, gradually reducing the thickness of the aluminum plate to about 1.0 mm and adjusting the width to the target size.

[0003] In the above rolling stage, the reduction per pass needs to be set strictly according to the process requirements. The single compression thickness of the aluminum plate does not exceed 40%. If it is found that the material runs off or tears during the rolling process, stop the machine immediately and correct it by jogging the rewinding or adjusting the roll gap, and avoid direct manual handling. However, it still requires manual observation, which has the problem of processing delay. This not only increases the material loss, but also requires constant observation, reducing the degree of automation of the device. Moreover, during the rolling process, it is necessary to synchronously remove the oxides and impurities on the surface of the aluminum plate to avoid scratching the roll and ensure that the surface of the aluminum plate is defect-free.

[0004] After retrieval, Chinese Patent Application CN216989186U discloses a cold rolling mill for aluminum plate processing with automatic feeding. Although it can carry out moisture absorption treatment on the aluminum plate, it cannot independently stop the rolling operation according to the processing situation and requires manual control. At the same time, the rewinding of the cold rolling mill requires multiple control elements and servo motors to participate in the operation, which not only increases the risk of damage to the cold rolling mill, but also increases the cost investment. At the same time, it cannot independently adjust the distance between the working rolls according to the rolling raw material, so it cannot ensure that the single compression thickness does not exceed 40%. If manual judgment is used all the time, it is easy to generate measurement errors, and at the same time, it cannot quickly adjust the rolling gap, reducing the rolling efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a cold rolling mill for aluminum plate processing with automatic feeding.

[0006] To solve the problems raised in the above background art, the present invention provides the following technical solutions: A cold rolling mill for processing aluminum plates with automatic feeding, including a machine body, a housing is fixedly connected to the top surface of the machine body, an AGC cylinder is installed at the top end of the housing, a support roll is fixedly connected to the output end of the AGC cylinder, and a lower working roll is installed on the housing. An upper working roll is arranged between the lower working roll and the support roll. Bearing seats are sleeved at both ends of the upper working roll. The bearing seats are slidably sleeved with the housing. One end of a universal shaft is fixedly connected to the central axis of the upper working roll. The other end of the universal shaft is fitted and sleeved with a driven gear and a transmission gear. A transmission shaft is fixedly connected to the central axis of the lower working roll. An input table and an output table are fixedly connected between the side walls of the housing. A grinding roll is arranged on the top surface of the input table. A moving block is rotatably connected to the end surface of the grinding roll. A motor is installed inside the side wall of the housing. A main lead screw is fixedly connected to the output end of the motor. The main lead screw is meshed and sleeved with the moving block. One end of a transmission belt is fixedly connected to the outer surface of the main lead screw. The other end of the transmission belt is fixedly connected to a secondary lead screw. The top end of the secondary lead screw is meshed and sleeved with the bearing seat;

[0007] A pressing plate is slidably connected to the side wall of the output table. A connecting rod is fixedly connected between the pressing plate and the support roll. A slider is slidably connected to the bottom surface of the pressing plate. One end of a top rod is fixedly connected to the side wall of the slider. The other end of the top rod is fixedly connected to an engaging block. The engaging block is sleeved with the transmission shaft. A first embedding groove and a first sealed cavity are formed at one end of the transmission shaft. A second embedding groove and a second sealed cavity are formed at the other end of the transmission shaft. The first sealed cavity communicates with the second sealed cavity. A piston pad is slidably sleeved inside the first sealed cavity. One end of a pull rod is fixedly connected to the end surface of the piston pad. The other end of the pull rod is fixedly connected to a first embedding block. One end of a positioning rod is fixedly connected to the end surface of the first embedding block. The other end of the positioning rod is fitted and sleeved with the end surface of the lower working roll. A collar is fixedly connected to the outer surface of the first embedding block;

[0008] A piston rod is slidably sleeved inside the second sealed cavity. A second embedding block and a third embedding block are fixedly connected to the outer surface of the piston rod. A driving gear and a rotating frame are rotatably sleeved at the end of the transmission shaft. A toothed ring is fixedly connected to the end surface of the rotating frame.

[0009] As a further solution of the present invention: The grinding roll is slidably connected to the housing. There are two AGC cylinders, and the two AGC cylinders are symmetrically arranged with respect to the bisecting plane of the housing. The support roll is slidably sleeved with the housing.

[0010] As a further solution of the present invention: The universal shaft and the transmission shaft are both rotatably sleeved with the machine body. The driven gear is meshed and connected with the driving gear. The transmission gear is meshed and connected with the toothed ring. The moving block is slidably sleeved with the housing.

[0011] As a further solution of the present invention: the pitch ratio of the main lead screw to the auxiliary lead screw is 5:3. The auxiliary lead screw is rotatably sleeved with the housing, and the top end of the auxiliary lead screw extends outside the housing.

[0012] As a further solution of the present invention: the connecting rod is slidably sleeved with the output table, the ejector rod penetrates through the side wall of the housing, the connecting block is rotatably sleeved with the collar, the positioning rod is fitted and sleeved with the end face of the first fitting groove, and the first insert block is slidably sleeved with the first fitting groove.

[0013] As a further solution of the present invention: the piston rod extends into the second fitting groove, and the second insert block and the third insert block are slidably sleeved with the second fitting groove.

[0014] As a further solution of the present invention: the second insert block is fitted and sleeved with the driving gear, the third insert block is fitted and sleeved with the rotating frame, and the cross section of the rotating frame is L-shaped.

[0015] As a further solution of the present invention: the moving track of the rotating frame does not intersect with the universal shaft, and the transmission shaft is fixedly connected to the motor in the machine body.

[0016] Adopting the above technical solution: compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, the main lead screw drives the moving block to rise until the grinding roller on the moving block contacts the top surface of the aluminum plate, so that the grinding roller can clean the top surface of the aluminum plate, avoiding scratches on the upper working roller caused by oxides and impurities on the surface of the aluminum plate, ensuring that the surface of the rolled aluminum plate is defect-free. At the same time, the self-rotation of the main lead screw can synchronously drive one end of the transmission belt to rotate, so that the other end of the transmission belt drives the auxiliary lead screw to rotate synchronously. The top end of the auxiliary lead screw is meshed and sleeved with the bearing block, so that the bearing block rises under the drive of the auxiliary lead screw, thereby lifting the upper working roller on the bearing block and expanding the gap between the upper working roller and the lower working roller. At the same time, the pitch ratio of the main lead screw to the auxiliary lead screw is 5:3, that is, when the grinding roller on the main lead screw rises 1 mm, the upper working roller on the auxiliary lead screw rises 0.6 mm. Therefore, the gap height between the upper working roller and the lower working roller is 60% of the thickness of the raw material aluminum plate, so that the distance between the upper working roller and the lower working roller can be adjusted according to the rolling raw material, ensuring that the single compression thickness does not exceed 40%, without the need for manual judgment at all times, not only avoiding measurement errors, but also quickly adjusting the rolling thickness and improving the rolling efficiency.

[0018] 2. In the present invention, the motor drives the transmission shaft to rotate, causing the transmission shaft to drive the driving gear to rotate through the second insert block. The driven gear meshed with the driving gear drives the universal shaft to rotate. While the transmission shaft drives the lower working roll to rotate, the universal shaft can drive the upper working roll to rotate, enabling the upper working roll to cooperate with the lower working roll to roll the raw aluminum plate. After rolling, the plate passes through the gap between the output table and the pressing plate. During the rolling of the raw aluminum plate, if the material runs off or tears, the plate will squeeze the slider on the pressing plate, causing the slider to push the ejector rod to move. As a result, the other end of the ejector rod pushes the connecting block to move, causing the connecting block to drive the first insert block to translate through the collar, and further causing the positioning rod on the first insert block to disengage from the lower working roll, eliminating the input power of the lower working roll and achieving the purpose of immediately stopping rolling. There is no need for manual observation, avoiding processing delays, not only reducing material loss but also improving the automation level of the device.

[0019] 3. In the present invention, the piston pad compresses the air in the first closed cavity, and the first closed cavity is connected to the second closed cavity. Thus, the compressed air pushes the piston rod in the second closed cavity to translate, causing the second insert block on the piston rod to disengage from the driving gear. At the same time, the third insert block on the piston rod is engaged and sleeved with the rotating frame. Furthermore, the rotation of the transmission shaft can drive the toothed ring to rotate through the third insert block and the rotating frame, causing the transmission gear meshed with the toothed ring to drive the universal shaft to reverse. As a result, the upper working roll driven by the universal shaft reverses, driving the aluminum plate raw material to move backward. The rewinding of the cold rolling mill is controlled purely mechanically, without the participation of multiple control elements and servo motors, not only reducing the risk of damage to the cold rolling mill but also reducing the cost investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of an automatic feeding aluminum plate processing cold rolling mill according to the present invention;

[0021] Figure 2 is a schematic cross-sectional view of the housing structure in an embodiment of the present invention;

[0022] Figure 3 In an embodiment of the present invention Figure 2 is an enlarged view of the structure of part A;

[0023] Figure 4 In an embodiment of the present invention Figure 1 is an enlarged view of the structure of part B;

[0024] Figure 5 is a schematic semi-sectional view of the body structure in an embodiment of the present invention;

[0025] Figure 6 In an embodiment of the present invention Figure 5 is an enlarged view of the structure of part C;

[0026] Figure 7 Schematic semi-sectional view of the drive shaft structure in the embodiment of the present invention;

[0027] Figure 8 In the embodiment of the present invention Figure 7 Enlarged view of the structure of part D;

[0028] Figure 9 Schematic view of the tooth ring structure in the embodiment of the present invention.

[0029] In the figure: 1, body; 2, housing; 3, AGC cylinder; 4, backup roll; 5, upper work roll; 6, lower work roll; 7, universal shaft; 8, drive shaft; 9, input table; 10, grinding roll; 11, motor; 12, main lead screw; 13, moving block; 14, drive belt; 15, auxiliary lead screw; 16, bearing block; 17, output table; 18, pressing plate; 19, connecting rod; 20, slider; 21, ejector rod; 22, connecting block; 23, first groove; 24, first sealed cavity; 25, second groove; 26, second sealed cavity; 27, piston gasket; 28, pull rod; 29, first insert block; 30, positioning rod; 31, collar; 32, piston rod; 33, second insert block; 34, third insert block; 35, driving gear; 36, rotating frame; 37, tooth ring; 38, driven gear; 39, transmission gear. Detailed implementation manners

[0030] The following further describes the detailed implementation manners of the present invention with reference to the accompanying drawings. It should be noted here that the description of these implementation manners is for helping to understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various implementation manners of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Embodiment 1

[0032] Please refer to Figures 1-3 , Figure 5 and Figure 9, the present invention provides a technical solution: an aluminum plate processing cold rolling mill with automatic feeding, including a machine body 1, a housing 2 is fixedly connected to the top surface of the machine body 1, an AGC cylinder 3 is installed at the top end of the housing 2, a support roll 4 is fixedly connected to the output end of the AGC cylinder 3, and a lower working roll 6 is installed on the housing 2. An upper working roll 5 is arranged between the lower working roll 6 and the support roll 4. Bearing seats 16 are sleeved at both ends of the upper working roll 5. The bearing seats 16 are slidably sleeved with the housing 2. One end of a universal shaft 7 is fixedly connected to the central axis of the upper working roll 5. The other end of the universal shaft 7 is fitted and sleeved with a driven gear 38 and a transmission gear 39. A transmission shaft 8 is fixedly connected to the central axis of the lower working roll 6. An input table 9 and an output table 17 are fixedly connected between the side walls of the housing 2. A grinding roll 10 is arranged on the top surface of the input table 9. A moving block 13 is rotatably connected to the end surface of the grinding roll 10. A motor 11 is installed inside the side wall of the housing 2. A main lead screw 12 is fixedly connected to the output end of the motor 11. The main lead screw 12 is meshed and sleeved with the moving block 13. One end of a transmission belt 14 is fixedly connected to the outer surface of the main lead screw 12. The other end of the transmission belt 14 is fixedly connected to a secondary lead screw 15. The top end of the secondary lead screw 15 is meshed and sleeved with the bearing seat 16.

[0033] Please refer to Figure 1 and Figure 2 , the grinding roll 10 is slidably connected to the housing 2. There are two AGC cylinders 3, and the two AGC cylinders 3 are symmetrically arranged with respect to the bisecting plane of the housing 2. The support roll 4 is slidably sleeved with the housing 2.

[0034] Please refer to Figure 1 , Figure 3 , Figure 5 and Figure 9 , both the universal shaft 7 and the transmission shaft 8 are rotatably sleeved with the machine body 1. The driven gear 38 is meshed and connected to the driving gear 35. The transmission gear 39 is meshed and connected to the gear ring 37. The moving block 13 is slidably sleeved with the housing 2.

[0035] Please refer to Figure 3 , the pitch ratio of the main lead screw 12 to the secondary lead screw 15 is 5:3. The secondary lead screw 15 is rotatably sleeved with the housing 2, and the top end of the secondary lead screw 15 extends outside the housing 2.

[0036] Specifically, in the process of adjusting the compression thickness, the aluminum plate is placed on the input table 9, and then the motor 11 in the arch 2 is started, so that the motor 11 drives the moving block 13 to move through the main screw 12, and the moving block 13 is slidably connected with the arch 2, so that the moving block 13 cannot rotate, so that the moving block 13 rises under the drive of the main screw 12 until the grinding roller 10 on the moving block 13 contacts the top surface of the aluminum plate, so that the grinding roller 10 can clean the top surface of the aluminum plate, and prevent the oxides and impurities on the surface of the aluminum plate from scratching the upper working roller 5, ensuring that the surface of the aluminum plate after rolling is defect-free. At the same time, the rotation of the main screw 12 can synchronously drive one end of the transmission belt 14 to rotate, so that the other end of the transmission belt 14 drives the auxiliary screw 15 to rotate synchronously, and the auxiliary screw 1 The top of 5 is meshed and sleeved with the bearing seat 16, so that the bearing seat 16 rises under the drive of the auxiliary screw 15, thereby lifting the upper working roller 5 on the bearing seat 16, so that the gap between the upper working roller 5 and the lower working roller 6 is enlarged, and at the same time, the pitch ratio of the main screw 12 and the auxiliary screw 15 is 5:3, that is, when the grinding roller 10 on the main screw 12 rises by 1mm, the upper working roller 5 on the auxiliary screw 15 is lifted by 0.6mm, so the gap height between the upper working roller 5 and the lower working roller 6 is 60% of the thickness of the raw aluminum plate, so that the spacing between the upper working roller 5 and the lower working roller 6 can be adjusted according to the rolled raw material to ensure that the single compression thickness does not exceed 40%, without manual judgment from time to time, not only avoiding measurement errors, but also quickly adjusting the rolling thickness, thereby improving rolling efficiency.

[0037] Example 2

[0038] See also Figure 1 and Figures 4-8 The present invention provides a technical solution: an automatic feeding aluminum plate processing cold rolling mill, a side wall of the output table 17 is slidably connected with a pressing plate 18, a connecting rod 19 is fixedly connected between the pressing plate 18 and the supporting roller 4, and a slider 20 is slidably connected to the bottom surface of the pressing plate 18, one end of a push rod 21 is fixedly connected to the side wall of the slider 20, and a connecting block 22 is fixedly connected to the other end of the push rod 21, and the connecting block 22 is sleeved with a transmission shaft 8, and one end of the transmission shaft 8 is provided with a first embedding groove 23 and a first closed cavity 24, and the transmission shaft 8 The other end of the roll 24 is provided with a second embedding groove 25 and a second closed cavity 26, the first closed cavity 24 is communicated with the second closed cavity 26, and a piston pad 27 is slidably sleeved in the first closed cavity 24, one end of a pull rod 28 is fixedly connected to the end surface of the piston pad 27, the other end of the pull rod 28 is fixedly connected to a first embedding block 29, one end of a positioning rod 30 is fixedly connected to the end surface of the first embedding block 29, the other end of the positioning rod 30 is embedded and sleeved with the end surface of the lower working roll 6, and a ring 31 is fixedly connected to the outer surface of the first embedding block 29.

[0039] See also Figure 4 , Figure 6 and Figure 8, the connecting rod 19 is slidably sleeved on the output table 17, the ejector rod 21 penetrates through the side wall of the housing 2, the connecting block 22 is rotatably sleeved on the collar 31, the positioning rod 30 is fitted and sleeved on the end face of the first groove 23, and the first insert block 29 is slidably sleeved on the first groove 23.

[0040] Please refer to Figure 9 , the piston rod 32 extends into the second groove 25, and the second insert block 33 and the third insert block 34 are slidably sleeved on the second groove 25.

[0041] Specifically, during the process of stopping rolling, the motor in the machine body 1 is started, so that the motor drives the transmission shaft 8 to rotate, so that the transmission shaft 8 drives the driving gear 35 to rotate through the second insert block 33, so that the driven gear 38 meshed with the driving gear 35 drives the universal shaft 7 to rotate. While the transmission shaft 8 drives the lower working roll 6 to rotate, the universal shaft 7 can drive the upper working roll 5 to rotate, so that the upper working roll 5 cooperates with the lower working roll 6 to roll the raw material aluminum plate, and the rolled plate passes through the gap between the output table 17 and the pressing plate 18. As the raw material aluminum plate is rolled, if the material runs off or tears, the plate will squeeze the slider 20 on the pressing plate 18, so that the slider 20 pushes the ejector rod 21 to move, so that the other end of the ejector rod 21 pushes the connecting block 22 to move, so that the connecting block 22 drives the first insert block 29 to translate through the collar 31, and further makes the positioning rod 30 on the first insert block 29 disengage from the lower working roll 6, so that the input work of the lower working roll 6 disappears, achieving the purpose of immediately stopping rolling, without manual observation, avoiding the delay in processing, not only reducing the material loss, but also improving the automation degree of the device.

[0042] Embodiment 3

[0043] Please refer to Figure 3 , Figure 5 , Figure 7 and Figure 9 , the present invention provides a technical solution: a cold rolling mill for automatically feeding aluminum plates, a piston rod 32 is slidably sleeved in the second closed cavity 26, the outer surface of the piston rod 32 is fixedly connected with a second insert block 33 and a third insert block 34, the end of the transmission shaft 8 is rotatably sleeved with a driving gear 35 and a rotating frame 36, and a toothed ring 37 is fixedly connected to the end face of the rotating frame 36.

[0044] Please refer to Figure 9 , the second insert block 33 is fitted and sleeved on the driving gear 35, the third insert block 34 is fitted and sleeved on the rotating frame 36, and the cross section of the rotating frame 36 is L-shaped.

[0045] Please refer to Figure 9 , the moving track of the rotating frame 36 does not intersect with the universal shaft 7, and the transmission shaft 8 is fixedly connected with the motor in the machine body 1.

[0046] Specifically, during the rewinding process, the first insert block 29 pushes the piston pad 27 to move through the pull rod 28, so that the piston pad 27 compresses the air in the first sealed cavity 24. The first sealed cavity 24 communicates with the second sealed cavity 26, so that the compressed air pushes the piston rod 32 in the second sealed cavity 26 to translate, making the second insert block 33 on the piston rod 32 disengage from the driving gear 35. At the same time, the third insert block 34 on the piston rod 32 is engaged and sleeved with the rotating frame 36. Furthermore, the rotation of the transmission shaft 8 can drive the toothed ring 37 to rotate through the third insert block 34 and the rotating frame 36, making the transmission gear 39 engaged with the toothed ring 37 drive the universal shaft 7 to reverse. Thus, the universal shaft 7 drives the upper working roll 5 to reverse, making the upper working roll 5 drive the aluminum plate raw material to retreat. The rewinding of the cold rolling mill is controlled purely mechanically, without the participation of multiple control elements and servo motors, which not only reduces the risk of damage to the cold rolling mill but also reduces the cost investment.

[0047] The working principle and usage process of the present invention: When it is necessary to roll the aluminum plate, place the aluminum plate on the input table 9, and then start the motor 11 in the housing 2, so that the motor 11 drives the moving block 13 to move through the main lead screw 12. The moving block 13 is slidably sleeved with the housing 2, making the moving block 13 unable to rotate. Thus, the moving block 13 rises under the drive of the main lead screw 12 until the grinding roll 10 on the moving block 13 contacts the top surface of the aluminum plate. Furthermore, the grinding roll 10 can clean the top surface of the aluminum plate, preventing oxides and impurities on the surface of the aluminum plate from scratching the upper working roll 5 and ensuring that the surface of the rolled aluminum plate is defect-free. At the same time, the self-rotation of the main lead screw 12 can synchronously drive one end of the transmission belt 14 to rotate, making the other end of the transmission belt 14 drive the auxiliary lead screw 15 to rotate synchronously. The top end of the auxiliary lead screw 15 is engaged and sleeved with the bearing block 16, making the bearing block 16 rise under the drive of the auxiliary lead screw 15. Thus, the upper working roll 5 on the bearing block 16 is lifted, increasing the gap between the upper working roll 5 and the lower working roll 6. At the same time, the pitch ratio of the main lead screw 12 to the auxiliary lead screw 15 is 5:3, that is, when the grinding roll 10 on the main lead screw 12 rises by 1 mm, the upper working roll 5 on the auxiliary lead screw 15 is lifted by 0.6 mm. Therefore, the gap height between the upper working roll 5 and the lower working roll 6 is 60% of the thickness of the raw material aluminum plate, so that the distance between the upper working roll 5 and the lower working roll 6 can be adjusted according to the rolling raw material, ensuring that the single compression thickness does not exceed 40%. There is no need for manual judgment at all times, which not only avoids measurement errors but also can quickly adjust the rolling thickness, improving the rolling efficiency.

[0048] After the rolling thickness adjustment is completed, start the motor in the machine body 1, so that the motor drives the transmission shaft 8 to rotate, so that the transmission shaft 8 drives the driving gear 35 to rotate through the second insert block 33, so that the driven gear 38 meshed with the driving gear 35 drives the universal shaft 7 to rotate. While the transmission shaft 8 drives the lower working roll 6 to rotate, the universal shaft 7 can drive the upper working roll 5 to rotate, so that the upper working roll 5 cooperates with the lower working roll 6 to roll the raw aluminum plate, and the rolled plate passes through the gap between the output table 17 and the pressing plate 18. As the raw aluminum plate is rolled, if the material runs off or tears, the plate will squeeze the slider 20 on the pressing plate 18, so that the slider 20 pushes the ejector rod 21 to move, so that the other end of the ejector rod 21 pushes the connecting block 22 to move, so that the connecting block 22 drives the first insert block 29 to translate through the collar 31, and further makes the positioning rod 30 on the first insert block 29 disengage from the lower working roll 6, so that the input work of the lower working roll 6 disappears, achieving the purpose of immediately stopping rolling. There is no need for manual observation, avoiding the delay in processing, not only reducing the material loss, but also improving the automation degree of the device. During the above process, the translating first insert block 29 pushes the piston pad 27 to move through the pull rod 28, so that the piston pad 27 compresses the air in the first sealed cavity 24, and the first sealed cavity 24 is communicated with the second sealed cavity 26, so that the compressed air pushes the piston rod 32 in the second sealed cavity 26 to translate, so that the second insert block 33 on the piston rod 32 disengages from the driving gear 35, and at the same time the third insert block 34 on the piston rod 32 is engaged and sleeved with the rotating frame 36. Furthermore, the rotation of the transmission shaft 8 can drive the toothed ring 37 to rotate through the third insert block 34 and the rotating frame 36, so that the transmission gear 39 meshed with the toothed ring 37 drives the universal shaft 7 to reverse, so that the upper working roll 5 driven by the universal shaft 7 reverses, so that the upper working roll 5 drives the aluminum plate raw material to retreat, so that the rewinding of the cold rolling mill is controlled purely mechanically, without the participation of multiple control elements and servo motors, not only reducing the risk of damage to the cold rolling mill, but also reducing the cost investment, and completing the operation.

[0049] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. An aluminum plate processing cold rolling mill with automatic feeding, characterized in that It includes a machine body (1), on the top surface of the machine body (1) is fixedly connected a housing (2), at the top end of the housing (2) is installed an AGC cylinder (3), at the output end of the AGC cylinder (3) is fixedly connected a support roll (4), and on the housing (2) is installed a lower working roll (6). Between the lower working roll (6) and the support roll (4) is arranged an upper working roll (5). At both ends of the upper working roll (5) are sleeved bearing blocks (16). The bearing blocks (16) are slidably sleeved with the housing (2). And at one end of the central axis of the upper working roll (5) is fixedly connected one end of a universal shaft (7). The other end of the universal shaft (7) is fitted and sleeved with a driven gear (38) and a driving gear (39). At the central axis of the lower working roll (6) is fixedly connected a transmission shaft (8). Between the side walls of the housing (2) are fixedly connected an input table (9) and an output table (17). On the top surface of the input table (9) is arranged a grinding roll (10). On the end surface of the grinding roll (10) is rotatably connected a moving block (13). Inside the side wall of the housing (2) is installed a motor (11). At the output end of the motor (11) is fixedly connected a main lead screw (12). The main lead screw (12) is meshed and sleeved with the moving block (13). And on the outer surface of the main lead screw (12) is fixedly connected one end of a transmission belt (14). The other end of the transmission belt (14) is fixedly connected a secondary lead screw (15). The top end of the secondary lead screw (15) is meshed and sleeved with the bearing block (16). On the side wall of the output table (17) is slidably connected a pressing plate (18). Between the pressing plate (18) and the support roll (4) is fixedly connected a connecting rod (19). And on the bottom surface of the pressing plate (18) is slidably connected a slider (20). At one end of the side wall of the slider (20) is fixedly connected one end of a push rod (21). The other end of the push rod (21) is fixedly connected an adapter block (22). The adapter block (22) is sleeved with the transmission shaft (8). At one end of the transmission shaft (8) are opened a first embedding groove (23) and a first sealed cavity (24). At the other end of the transmission shaft (8) are opened a second embedding groove (25) and a second sealed cavity (26). The first sealed cavity (24) communicates with the second sealed cavity (26). And inside the first sealed cavity (24) is slidably sleeved a piston gasket (27). At one end of the end surface of the piston gasket (27) is fixedly connected one end of a pull rod (28). The other end of the pull rod (28) is fixedly connected a first embedding block (29). At one end of the end surface of the first embedding block (29) is fixedly connected one end of a positioning rod (30). The other end of the positioning rod (30) is fitted and sleeved with the end surface of the lower working roll (6). And on the outer surface of the first embedding block (29) is fixedly connected a collar (31). Inside the second sealed cavity (26) is slidably sleeved a piston rod (32). On the outer surface of the piston rod (32) are fixedly connected a second embedding block (33) and a third embedding block (34). At the end of the transmission shaft (8) are rotatably sleeved a driving gear (35) and a rotating frame (36). On the end surface of the rotating frame (36) is fixedly connected a toothed ring (37).

2. The cold rolling mill for aluminum plate processing with automatic feeding according to claim 1, wherein: The grinding roll (10) is slidably connected to the housing (2). There are two AGC cylinders (3), and the two AGC cylinders (3) are symmetrically arranged with respect to the bisecting plane of the housing (2). The support roll (4) is slidably sleeved on the housing (2).

3. The cold rolling mill for aluminum plate processing with automatic feeding according to claim 1, wherein: The universal shaft (7) and the transmission shaft (8) are both rotatably sleeved on the machine body (1). The driven gear (38) is meshed with the driving gear (35). The transmission gear (39) is meshed with the toothed ring (37). The moving block (13) is slidably sleeved on the housing (2).

4. An aluminum plate processing cold rolling mill with automatic feeding according to claim 1, characterized in that: The pitch ratio of the main lead screw (12) to the auxiliary lead screw (15) is 5:

3. The auxiliary lead screw (15) is rotatably sleeved on the housing (2), and the top end of the auxiliary lead screw (15) extends outside the housing (2).

5. An aluminum plate processing cold rolling mill with automatic feeding according to claim 1, characterized in that: The connecting rod (19) is slidably sleeved on the output table (17). The ejector rod (21) penetrates through the side wall of the housing (2). The connecting block (22) is rotatably sleeved on the collar (31). The positioning rod (30) is fitted and sleeved on the end face of the first slot (23). The first insert block (29) is slidably sleeved in the first slot (23).

6. An aluminum plate processing cold rolling mill with automatic feeding according to claim 1, characterized in that: The piston rod (32) extends into the second slot (25). The second insert block (33) and the third insert block (34) are slidably sleeved in the second slot (25).

7. An aluminum plate processing cold rolling mill with automatic feeding according to claim 1, characterized in that: The second insert block (33) is fitted and sleeved on the driving gear (35). The third insert block (34) is fitted and sleeved on the rotating frame (36). The cross section of the rotating frame (36) is L-shaped.

8. An aluminum plate processing cold rolling mill with automatic feeding according to claim 1, characterized in that: The moving track of the rotating frame (36) does not intersect with the universal shaft (7). The transmission shaft (8) is fixedly connected to the motor in the machine body (1).

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