A hydraulic three-roll plate bending machine for processing thin metal plates

By using the roller assembly and automatic unloading assembly of the hydraulic three-roll plate rolling machine, the problem of lower roller shaft deformation caused by the weight of the plate is solved, achieving efficient plate rolling and automatic unloading, and extending the service life of the equipment.

CN224333162UActive Publication Date: 2026-06-09NANTONG PENGWEI MASCH TOOL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG PENGWEI MASCH TOOL CO LTD
Filing Date
2025-04-07
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In the existing three-roll plate rolling machine, the lower roller may bend or twist due to the weight of the plate during the plate rolling process, which reduces its service life.

Method used

A hydraulic three-roll plate rolling machine for thin metal sheet processing was designed. It adopts a roller assembly and an automatic feeding assembly. Through hydraulic telescopic rod and threaded transmission, it realizes the roller support and automatic feeding of the lower roller shaft, reducing the pressure of the plate's own weight on the lower roller shaft.

Benefits of technology

This effectively reduces the deformation of the lower roller due to the weight of the sheet material, improves the rolling efficiency and automation of the equipment, and extends the service life of the lower roller.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to plate rolling machine technical field, and disclose a hydraulic three -roller plate rolling machine for thin metal plate processing, including support base plate, the top of support base plate is opened groove one, groove two and groove three respectively, the top fixed mounting of support base plate has motor no.
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Description

Technical Field

[0001] This utility model relates to the field of plate rolling machine technology, specifically a hydraulic three-roll plate rolling machine for processing thin metal plates. Background Technology

[0002] Three-roll plate bending machines are used in shipbuilding, boiler, aviation, hydropower, chemical, metal structure and machinery manufacturing industries. There are two types of three-roll plate bending machines: hydraulic and mechanical. Three-roll plate bending machines can roll metal sheets into round and other shapes.

[0003] When existing three-roll plate rolling machines roll plates, the weight of the plate itself causes a downward force, which presses the middle of the lower roller downward. As a result, after a long period of use, the lower roller may bend or twist due to the pressure of the plate, reducing its service life. Therefore, we have introduced a hydraulic three-roll plate rolling machine for thin metal plate processing. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a hydraulic three-roll plate bending machine for thin metal sheet processing, which has the advantages of lower roller shaft support and automatic material feeding, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a hydraulic three-roll plate bending machine for processing thin metal plates, including a supporting base plate. The top of the supporting base plate is provided with a first slide groove, a second slide groove, and a third slide groove. A motor is fixedly installed on the top of the supporting base plate. A gear is fixedly sleeved on the outer edge of the power output shaft of the motor. A gear is meshed on the outer edge of the gear. A gear is meshed on the outer edge of the gear. A lower roller shaft is fixedly sleeved on the inner wall of the gear. A lower roller shaft is fixedly sleeved on the inner wall of the gear. A baffle plate and a baffle plate are fixedly installed on the top of the supporting base plate. A hydraulic telescopic rod is fixedly assembled on the top of the baffle plate. A lifting block is fixedly installed on the telescopic end of the hydraulic telescopic rod. An upper roller shaft is rotatably connected to the inner wall of the lifting block. A fixed plate is rotatably connected to the inner wall of the baffle plate. A roller assembly and a feeding assembly are respectively provided on the top of the supporting base plate.

[0006] The idler assembly includes a second motor. A rotating shaft is fixedly sleeved on the outer edge of the power output shaft of the second motor. The outer wall of the rotating shaft is provided with a forward thread and a reverse thread. A slider is threadedly connected to the outer wall of the forward thread. One end of a connecting rod is rotatably connected to the outer wall of the slider. The other end of the connecting rod is rotatably connected to a connecting rod. A support roller is provided at the top of the connecting rod. A slider is threadedly connected to the outer wall of the reverse thread. One end of a connecting rod is rotatably connected to the inner wall of the slider. The other end of the connecting rod is rotatably connected to a support roller.

[0007] As a preferred technical solution of this utility model: the feeding assembly includes a motor three, a lead screw is fixedly sleeved on the outer edge of the power output shaft of the motor three, a fixing rod one is threadedly connected to the outer wall of the lead screw, a sliding groove four is opened on the outer wall of the fixing rod one, a fixing rod two is slidably connected to the inner wall of the fixing rod one, a ring is fixedly assembled on the top of the fixing rod two, a push rod is fixedly installed on the outer wall of the ring, a slot is opened on the outer wall of the push rod, a circular groove is opened on the inner wall of the push rod, and a spring and a ball are respectively provided in the inner cavity of the circular groove.

[0008] As a preferred technical solution of this utility model: the bottom of the fixing rod one has the same shape as the inner wall of the slide groove three, and the bottom of the fixing rod one is slidably fitted to the inner wall of the slide groove three; the outer wall of the fixing rod two has the same shape as the inner wall of the slide groove four, and the outer wall of the fixing rod two is slidably fitted to the inner wall of the slide groove four.

[0009] As a preferred technical solution of this utility model: the diameter of the sphere is larger than the opening diameter of the bottom of the circular groove, and the outer wall of the sphere is in contact with the outer wall of the upper roller shaft. There are three slots, and the three slots are respectively arranged in parallel on one side of the outer wall of the push rod.

[0010] As a preferred technical solution of this utility model: the bottom of slider one and slider two are the same shape as the inner wall of slide groove one and slide groove two, respectively, and the bottom of slider one and slider two are slidably fitted to the inner wall of slide groove one and slide groove two.

[0011] As a preferred technical solution of this utility model: the slider one, connecting rod one, supporting roller one, slider two, connecting rod three and supporting roller two have the same shape, and the slider one, connecting rod one, supporting roller one, slider two, connecting rod three and supporting roller two are arranged relative to each other with the connecting rod two as the center.

[0012] As a preferred embodiment of this utility model: the feeding assembly is considered as a movable assembly, and the movable assembly is respectively disposed at the bottom of the lower roller shaft one and the lower roller shaft two.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This hydraulic three-roll plate rolling machine for thin metal sheet processing, through the rotation shaft, forward thread and reverse thread, and the coordinated transmission of motor two, causes connecting rod one and connecting rod three to drive connecting rod two to move closer to lower roller one and lower roller two. This achieves the effect of supporting roller one and supporting roller two set at the top of connecting rod two to support lower roller one and lower roller two, thereby reducing the phenomenon of deformation of lower roller shaft due to the weight of the plate during the rolling process.

[0015] 2. This hydraulic three-roll plate rolling machine for thin metal sheet processing, through the coordinated transmission of motor three and lead screw, automatically pushes the rolled sheet material out of the upper roller shaft via fixed rod one, slide four, ring, push rod, and ball, thus achieving automatic feeding and effectively improving the rolling efficiency of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the three-roll plate bending machine of this utility model;

[0018] Figure 3 This is a schematic diagram of the slide groove structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the idler roller assembly structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the material feeding assembly structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the transmission structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the sliding structure of this utility model;

[0023] Figure 8 This utility model Figure 7 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Support base plate; 2. Slide 1; 3. Slide 2; 4. Slide 3; 5. Motor 1; 6. Gear 1; 7. Gear 2; 8. Gear 3; 9. Lower roller shaft 1; 10. Lower roller shaft 2; 11. Hydraulic telescopic rod; 12. Lifting block; 13. Upper roller shaft; 14. Fixing plate; 15. Baffle 1; 16. Idler roller assembly; 17. Discharge assembly; 18. Baffle 2; 1601. Motor 2; 1602. Rotating shaft; 1603. Forward thread; 1604. Reverse thread; 1605. Slider 1; 1606. Connecting rod 1; 1607. Connecting rod 2; 1608. Support roller 1; 1609. Slider 2; 1610. Connecting rod 3; 1611. Support roller 2; 1701. Motor 3; 1702. Lead screw; 1703. Fixed rod 1; 1704. Slide groove 4; 1705. Fixed rod 2; 1706. Ring; 1707. Push rod; 1708. Slot; 1709. Circular groove; 1710. Spring; 1711. Ball. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1 - Figure 8 A hydraulic three-roll plate bending machine for processing thin metal sheets includes a support base plate 1. The top of the support base plate 1 is provided with a first groove 2, a second groove 3, and a third groove 4. A motor 5 is fixedly installed on the top of the support base plate 1. A gear 6 is fixedly sleeved on the outer edge of the power output shaft of the motor 5. A gear 7 meshes with the outer edge of the gear 6. A gear 8 meshes with the outer edge of the gear 7. A lower roller shaft 9 is fixedly sleeved on the inner wall of the gear 6. A lower roller shaft 10 is fixedly sleeved on the inner wall of the gear 38. A baffle 18 and a baffle 15 are fixedly installed on the top of the support base plate 1. A hydraulic telescopic rod 11 is fixedly assembled on the top of the baffle 18. A lifting block 12 is fixedly installed on the telescopic end of the hydraulic telescopic rod 11. An upper roller shaft 13 is rotatably connected to the inner wall of the lifting block 12. A fixed plate 14 is rotatably connected to the inner wall of the baffle 15. A roller assembly 16 and a feeding assembly 17 are provided on the top of the support base plate 1.

[0027] The idler assembly 16 includes a second motor 1601. A rotating shaft 1602 is fixedly sleeved on the outer edge of the power output shaft of the second motor 1601. The outer wall of the rotating shaft 1602 is provided with a forward thread 1603 and a reverse thread 1604. A slider 1605 is threadedly connected to the outer wall of the forward thread 1603. One end of a connecting rod 1606 is rotatably connected to the outer wall of the slider 1605. The other end of the connecting rod 1606 is rotatably connected to a second connecting rod 1607. A support roller 1608 is provided at the top of the second connecting rod 1607. A slider 2 1609 is threadedly connected to the outer wall of the reverse thread 1604. One end of a connecting rod 3 1610 is rotatably connected to the inner wall of the slider 2 1609. The other end of the connecting rod 3 1610 is rotatably connected to a support roller 2 1611.

[0028] In the above structure, by setting up the lifting block 12 and the hydraulic telescopic rod 11, when the plate is at the top of the lower roller shaft 9 and the lower roller shaft 10, the hydraulic telescopic rod 11 is activated, causing the extension end of the hydraulic telescopic rod 11 to drive the lifting block 12 to slide along the inner wall of the baffle 18. At the same time, when the lifting block 12 slides, it also drives the upper roller shaft 13 to move closer to the plate at the top of the lower roller shaft 9 and the lower roller shaft 10, thereby realizing the hydraulic rolling of the plate by the equipment.

[0029] In a preferred embodiment: the feeding assembly 17 includes a motor 3 1701, a lead screw 1702 is fixedly sleeved on the outer edge of the power output shaft of the motor 3 1701, a fixing rod 1703 is threadedly connected to the outer wall of the lead screw 1702, a sliding groove 4 1704 is opened on the outer wall of the fixing rod 1703, a fixing rod 2 1705 is slidably connected to the inner wall of the fixing rod 1703, a ring 1706 is fixedly assembled on the top of the fixing rod 2 1705, a push rod 1707 is fixedly installed on the outer wall of the ring 1706, a slot 1708 is opened on the outer wall of the push rod 1707, a circular groove 1709 is opened on the inner wall of the push rod 1707, and a spring 1710 and a ball 1711 are respectively provided in the inner cavity of the circular groove 1709;

[0030] In a preferred embodiment: the bottom of the first fixing rod 1703 has the same shape as the inner wall of the third sliding groove 4, and the bottom of the first fixing rod 1703 is slidably fitted to the inner wall of the third sliding groove 4; the outer wall of the second fixing rod 1705 has the same shape as the inner wall of the fourth sliding groove 1704, and the outer wall of the second fixing rod 1705 is slidably fitted to the inner wall of the fourth sliding groove 1704.

[0031] In a preferred embodiment: the diameter of the sphere 1711 is larger than the opening diameter of the bottom of the circular groove 1709, and the outer wall of the sphere 1711 is in contact with the outer wall of the upper roller shaft 13. There are three slots 1708, and the three slots 1708 are respectively arranged in parallel on one side of the outer wall of the push rod 1707.

[0032] In the above structure, by setting the slot 1708, spring 1710, and ball 1711, when the upper roller 13 adjusts the distance between itself and the sheet material, the upper roller 13 will drive the fixed rod 1705 to slide along the inner wall of the slide groove 1704. Then, after the sheet material is processed, by starting the motor 1701, the lead screw 1702 will rotate under the drive of the motor 1701. The rotating lead screw 1702 will drive the fixed rod 1703 to slide along the inner wall of the slide groove 4. At the same time, when the fixed rod 1703 slides, it will drive the slide groove 4 1704 and the fixed rod 1705 to slide along the inner wall of the slide groove 4. The components 1705, 1706, 1707, 1708, 1710, and 1711 move towards the end of the processed sheet metal. This causes the three slots 1708 on one side of the outer wall of the push rod 1707 to engage with the corresponding sheet metal. After the sheet metal is engaged by the slots 1708, the weight of the sheet metal causes the ball 1711 to compress and rebound the spring 1710. As the ring 1706 pushes the slots 1708 towards the end of the sheet metal, the ball 1711 rolls along the outer wall of the upper roller shaft 13, thus automatically pushing the processed sheet metal out of the outer wall of the upper roller shaft 13.

[0033] In a preferred embodiment: the bottoms of slider 1605 and slider 21609 are the same shape as the inner walls of slide groove 12 and slide groove 23 respectively, and the bottoms of slider 1605 and slider 21609 are slidably fitted to the inner walls of slide groove 12 and slide groove 23.

[0034] In the above structure, the bottoms of slider 1605 and slider 2609 will slide along the inner wall of slide groove 12 and slide groove 23.

[0035] In a preferred embodiment: slider 1605, connecting rod 1606, support roller 1608, slider 2 1609, connecting rod 3 1610 and support roller 2 1611 have the same shape, and slider 1605, connecting rod 1606, support roller 1608, slider 2 1609, connecting rod 3 1610 and support roller 2 1611 are arranged relative to each other with connecting rod 2 1607 as the center;

[0036] In the above structure, by controlling slider 1605, connecting rod 1606, support roller 1608, slider 2 1609, connecting rod 3 1610, and support roller 2 1611, which are arranged relative to each other with connecting rod 2 1607 as the center, when the plate becomes too heavy, the two sets of slider 1605, connecting rod 1606, support roller 1608, slider 2 1609, connecting rod 3 1610, and support roller 2 1611 will perform relative transmission, thereby realizing the lifting and lowering of support roller 1608 and support roller 2 1611 relative to gear 3 8 and lower roller shaft 9.

[0037] In a preferred embodiment: the feeding assembly 17 is regarded as a movable assembly, and the movable assembly is respectively disposed at the bottom of the lower roller shaft 1 9 and the lower roller shaft 2 10;

[0038] In the above structure, by setting the feeding component 17, when the sheet material becomes too heavy, the feeding component 17 activates the two movable components at the bottom of the lower roller shaft 19 and the lower roller shaft 20. This causes the two movable components at the bottom of the lower roller shaft 19 and the lower roller shaft 20 to support the lower roller shaft 19 and the lower roller shaft 20, thereby preventing the sheet material at the top of the lower roller shaft 19 and the lower roller shaft 20 from sagging and deforming due to its own weight during the rolling process.

[0039] Working principle: When the device is in use, starting motor 1601 causes the rotating shaft 1602 to rotate, which in turn drives the forward thread 1603 and the reverse thread 1604 to rotate. This rotation of the forward thread 1603 and the reverse thread 1604 causes sliders 1605 and 1609 to slide relative to each other along the inner walls of slide grooves 2 and 3. This sliding motion of sliders 1605 and 1609 then drives the connecting rod 160... 6 and connecting rod 3 1610 move relative to each other, so that when connecting rod 1 1606 and connecting rod 3 1610 move relative to each other, connecting rod 2 1607 will move closer to the bottom of the lower roller shaft 1 9. At the same time, supporting roller 1 1608 and supporting roller 2 1611 will fit against the bottom of the lower roller shaft 1 9, thereby supporting the lower roller shaft 1 9. Then, by the same operation, another set of feeding components 17 can support the bottom of the lower roller shaft 2 10.

[0040] After the sheet metal is processed, motor 3 (1701) is started, causing lead screw 1702 to rotate. The rotating lead screw 1702 drives fixed rod 1703 to slide along the inner wall of slide groove 3 (4). Simultaneously, as fixed rod 1703 slides, it drives slide groove 4 (1704), fixed rod 2 (1705), ring 1706, push rod 1707, slot 1708, spring 1710, and ball 1711 to move towards the sheet metal. After the processed end is brought closer together, the three slots 1708 on one side of the outer wall of the push rod 1707 will engage with the corresponding plate. At the same time, after the plate is engaged by the slots 1708, the ball 1711 rotates the fixing plate 14 to ninety degrees. When the ring 1706 pushes the slots 1708 toward the end engaged with the plate, the ball 1711 will roll along the outer wall of the upper roller shaft 13, pushing the processed plate on the outer wall of the upper roller shaft 13 to one end of the upper roller shaft 13, thereby realizing the automated material handling of the plate.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic three-roll plate bending machine for processing thin metal sheets, comprising a supporting base plate (1), characterized in that: The top of the support base plate (1) is provided with slide groove 1 (2), slide groove 2 (3) and slide groove 3 (4). The top of the support base plate (1) is fixedly installed with motor 1 (5). Gear 1 (6) is fixedly sleeved on the outer edge of the power output shaft of motor 1 (5). Gear 2 (7) meshes with the outer edge of gear 1 (6). Gear 3 (8) meshes with the outer edge of gear 2 (7). Lower roller shaft 1 (9) is fixedly sleeved on the inner wall of gear 1 (6). Lower roller shaft 2 (1) is fixedly sleeved on the inner wall of gear 3 (8). 0), the top of the support base plate (1) is fixedly installed with baffle two (18) and baffle one (15), the top of baffle two (18) is fixedly equipped with a hydraulic telescopic rod (11), the telescopic end of the hydraulic telescopic rod (11) is fixedly installed with a lifting block (12), the inner wall of the lifting block (12) is rotatably connected with an upper roller shaft (13), the inner wall of baffle one (15) is rotatably connected with a fixing plate (14), and the top of the support base plate (1) is respectively provided with a roller assembly (16) and a feeding assembly (17). The idler assembly (16) includes a second motor (1601), and a rotating shaft (1602) is fixedly sleeved on the outer edge of the power output shaft of the second motor (1601). The outer wall of the rotating shaft (1602) is provided with a forward thread (1603) and a reverse thread (1604). The outer wall of the forward thread (1603) is threaded to a slider (1605). The outer wall of the slider (1605) is rotatably connected to one end of a connecting rod (1606). The other end of the connecting rod (1606) is rotatably connected to a connecting rod (1607). The top of the connecting rod (1607) is provided with a support roller (1608). The outer wall of the reverse thread (1604) is threaded to a slider (1609). The inner wall of the slider (1609) is rotatably connected to one end of a connecting rod (1610). The other end of the connecting rod (1610) is rotatably connected to a support roller (1611).

2. The hydraulic three-roll plate bending machine for processing thin metal sheets according to claim 1, characterized in that: The feeding assembly (17) includes a motor three (1701), a lead screw (1702) is fixedly sleeved on the outer edge of the power output shaft of the motor three (1701), a fixing rod one (1703) is threadedly connected to the outer wall of the lead screw (1702), a sliding groove four (1704) is opened on the outer wall of the fixing rod one (1703), a fixing rod two (1705) is slidably connected to the inner wall of the fixing rod one (1703), a ring (1706) is fixedly assembled on the top of the fixing rod two (1705), a push rod (1707) is fixedly installed on the outer wall of the ring (1706), a slot (1708) is opened on the outer wall of the push rod (1707), a circular groove (1709) is opened on the inner wall of the push rod (1707), and a spring (1710) and a ball (1711) are respectively provided in the inner cavity of the circular groove (1709).

3. The hydraulic three-roll plate bending machine for processing thin metal sheets according to claim 2, characterized in that: The bottom of the first fixing rod (1703) has the same shape as the inner wall of the third sliding groove (4), and the bottom of the first fixing rod (1703) is slidably fitted to the inner wall of the third sliding groove (4). The outer wall of the second fixing rod (1705) has the same shape as the inner wall of the fourth sliding groove (1704), and the outer wall of the second fixing rod (1705) is slidably fitted to the inner wall of the fourth sliding groove (1704).

4. The hydraulic three-roll plate bending machine for processing thin metal sheets according to claim 2, characterized in that: The diameter of the sphere (1711) is larger than the opening diameter at the bottom of the circular groove (1709), and the outer wall of the sphere (1711) is in contact with the outer wall of the upper roller shaft (13). There are three slots (1708), and the three slots (1708) are respectively arranged in parallel on one side of the outer wall of the push rod (1707).

5. A hydraulic three-roll plate bending machine for processing thin metal sheets according to claim 1, characterized in that: The bottoms of slider one (1605) and slider two (1609) are the same shape as the inner walls of slide groove one (2) and slide groove two (3), respectively, and the bottoms of slider one (1605) and slider two (1609) are fitted and slidably arranged to fit against the inner walls of slide groove one (2) and slide groove two (3).

6. The hydraulic three-roll plate bending machine for processing thin metal sheets according to claim 1, characterized in that: The slider 1 (1605), connecting rod 1 (1606), support roller 1 (1608), slider 2 (1609), connecting rod 3 (1610), and support roller 2 (1611) have the same shape, and the slider 1 (1605), connecting rod 1 (1606), support roller 1 (1608), slider 2 (1609), connecting rod 3 (1610), and support roller 2 (1611) are arranged relative to each other with connecting rod 2 (1607) as the center.

7. A hydraulic three-roll plate bending machine for processing thin metal sheets according to claim 1, characterized in that: The feeding assembly (17) is considered as a movable assembly, and the movable assembly is respectively located at the bottom of the lower roller shaft one (9) and the lower roller shaft two (10).