Cantilever rolling mill for the production of metal panels for pleasure boats

Abstract

A kind of cantilever rolling mill for preparing yacht metal protection plate, it is related to yacht component processing machinery field, it is equipped with cantilever rolling mill main body, cantilever rolling mill main body includes upper roller shaft and lower roller shaft, the upper roller shaft and lower roller shaft are respectively equipped with upper bending roller and lower bending roller, the upper bending roller and lower bending roller respectively include small diameter section, variable diameter section and large diameter section, the variable diameter section is located between small diameter section and large diameter section, the lower bending roller large diameter section is installed in front, small diameter section is installed behind lower roller shaft, the upper bending roller large diameter section is installed behind, small diameter section is installed in front of upper roller shaft, the upper bending roller and lower bending roller are vertically matched.The advantages of simple structure, low cost, simple operation, high performance-price ratio and the like.

Description

Technical Field

[0001] This utility model relates to the field of yacht component processing machinery, and in particular to a cantilever rolling mill for preparing yacht metal protective plates. Background Technology

[0002] When sailing, docking, or mooring, yachts are highly susceptible to contact with external objects. For example, when docked at piers or floating platforms, the sides of the hull are prone to friction and compression with pier fenders and other yachts. At high speeds, they may accidentally collide with floating debris (such as driftwood or containers). Installing metal protective plates on the sides of the yacht can prevent the hull (mostly made of relatively fragile materials such as fiberglass and aluminum alloy) from directly bearing the force, reducing the cumulative damage from repeated collisions and decreasing the risk of dents, cracks, or even leaks.

[0003] Traditional yacht metal skid plates mostly use flat stainless steel or aluminum alloy plates. Flat skid plates have poor impact resistance and lack water diversion and flow guidance functions. Z-shaped bends on the edges provide strong impact resistance, and the bends are positioned forward and backward on the outer side of the hull, effectively diverting water. Existing Z-shaped bend covers are manufactured using CNC bending machines (with servo positioning systems, positioning accuracy ±0.05mm) and narrow-width lower dies (suitable for partial edge bending, avoiding pressure on non-bending areas). Using CNC bending machines to process the Z-shaped bends on yacht metal skid plates is costly, complex to operate, and has low cost-effectiveness. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cantilever rolling mill for preparing yacht metal protective plates that is simple in structure, low in cost, easy and convenient to operate, and has a high cost performance.

[0005] The technical solution of this utility model is as follows: A cantilever rolling mill for manufacturing metal protective plates for yachts is provided, comprising a cantilever rolling mill body including an upper roller shaft and a lower roller shaft. The upper roller shaft and the lower roller shaft are respectively equipped with an upper bending roller and a lower bending roller, each comprising a small-diameter section, a variable-diameter section, and a large-diameter section. The variable-diameter section is located between the small-diameter section and the large-diameter section. The lower bending roller is mounted on the lower roller shaft with its large-diameter section in front and its small-diameter section behind. The upper bending roller is mounted on the upper roller shaft with its large-diameter section behind and its small-diameter section in front. The upper bending roller and the lower bending roller are vertically aligned and fitted together.

[0006] The small-diameter section and the large-diameter section described in this utility model are cylindrical, and the variable-diameter section is frustum-shaped; the angle between the generatrix of the variable-diameter section and the axis is 15°-90°, preferably 25°-35°.

[0007] The cantilever rolling mill body described in this utility model includes a frame and an electric motor. The electric motor is installed in the lower part of the frame. The upper and lower roller shafts are respectively installed in the upper part of the frame via bearing assemblies. The rear end of the lower roller shaft is connected to the electric motor via a transmission wheel and a transmission belt. A synchronous driving gear is provided on the lower roller shaft, and a synchronous driven gear meshing with the synchronous driving gear is provided on the upper roller shaft.

[0008] This invention is further improved by comprising a power input section, an adjustment and adaptation section, and a power output section. The power input section is mounted at the rear of the frame via an input bearing, and the power output section is slidably mounted at the front of the frame via an output bearing. The rear end of the adjustment and adaptation section is hinged to the front end of the power input section, and the front end of the adjustment and adaptation section is axially slidably connected to the rear end of the power output section. A hydraulic cylinder is mounted on the frame, and the piston rod of the hydraulic cylinder is connected to the bearing seat of the output bearing. The hydraulic cylinder can move the bearing seat of the output bearing up and down, thereby moving the power output section up and down, changing the distance between the upper and lower bending rollers to accommodate metal plates of different thicknesses.

[0009] The front end of the adjusting adapter section described in this invention is provided with a connecting slot. The rear end of the power output section can be axially slidably inserted into the connecting slot. A transmission groove is provided on the side wall of the connecting slot. A torque transmission column that can slide back and forth is provided on the power output section within the transmission groove. When the adjusting adapter section rotates, the torque is transmitted to the power output section through the transmission groove and the torque transmission column. The power output section can slide relative to the adjusting adapter section within a short distance.

[0010] The frame of this invention has a lower support seat at the front, and a lower bearing seat is mounted on the lower support seat. The front part of the lower roller is mounted in the lower bearing seat via a bearing. A left limiting arm and a right limiting arm are respectively mounted on the lower support seats on the left and right sides of the lower bearing seat. An upper bearing seat that can slide up and down is located between the left and right limiting arms above the lower bearing seat. Limiting bars are respectively mounted on the left and right limiting arms on the front and rear sides of the upper bearing seat. The power output section is mounted on the upper bearing seat via an output bearing. A pressure beam is provided at the upper end of the left and right limiting arms. A hydraulic cylinder is mounted on the pressure beam, and the piston rod of the hydraulic cylinder is connected to the upper bearing seat. Under the limitation of the left and right limiting arms and the limiting bars, the upper bearing seat can only slide up and down, ensuring the fitting accuracy between the upper and lower bending rollers. Furthermore, the left end face of the power output section and the left side face of the lower bearing housing are respectively provided with alignment marks that match each other; when the alignment mark on the left end face of the power output section is aligned with the alignment mark on the left side face of the lower bearing housing, the adjustment and adaptation section can swing up and down relative to the power input section.

[0011] In this invention, the left limiting arm is equipped with a bending width baffle whose front-to-back position is adjustable. Adjusting the front-to-back position of the bending width baffle can change the bending position of the metal protective plate, thus broadening its applicability.

[0012] In use, the upper and lower roller shafts rotate relative to each other, causing the upper and lower bending rollers to rotate relative to each other. One side of the metal protective plate to be processed is pushed between the upper and lower bending rollers from the left side. The upper and lower bending rollers clamp and roll one side of the metal protective plate, causing it to move to the right. The small-diameter section, variable-diameter section, and large-diameter section of the upper and lower bending rollers work together to roll one side of the metal protective plate into a Z-shaped bend. This invention has the advantages of simple structure, low cost, easy and convenient operation, and high cost-effectiveness. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 yes Figure 1 A schematic diagram of the left-side view structure.

[0015] Figure 3 This is a cross-sectional view of the upper bending roller of this utility model. Detailed Implementation

[0016] like Figures 1-3 The cantilever rolling mill shown is used for manufacturing metal protective plates for yachts. It has a main body comprising an upper roller shaft and a lower roller shaft 5. An upper bending roller 14 and a lower bending roller 13 are respectively mounted on the upper roller shaft and the lower roller shaft 5. The upper bending roller 14 and the lower bending roller 13 each include a small-diameter section 19, a variable-diameter section 20, and a large-diameter section 21. The small-diameter section 19 and the large-diameter section 21 are cylindrical. The variable-diameter section 20 is frustum-shaped and located between the small-diameter section 19 and the large-diameter section 21. The diameter of the small-diameter section is smaller than the diameter of the large-diameter section. The diameter of the end of the variable-diameter section connected to the small-diameter section is the same as the diameter of the small-diameter section. The diameter of the end of the variable-diameter section connected to the large-diameter section is the same as the diameter of the large-diameter section. The angle between the generatrix of the variable-diameter section and the axis is preferably 25°-35°. In this embodiment, the small-diameter section, variable-diameter section, and large-diameter section are integrally formed, with a mounting shaft hole in the middle for connection with the upper or lower roller shaft. The lower bending roller 13, with its large-diameter section 21 in front and its small-diameter section 19 behind, is mounted on the lower roller shaft 5. The upper bending roller 14, with its large-diameter section 21 behind and its small-diameter section 1 in front, is mounted on the upper roller shaft. The upper bending roller and the lower bending roller are aligned vertically.

[0017] The cantilever mill body described in this embodiment includes a frame and a motor 10. The motor 10 is installed in the lower part of the frame. The upper and lower roller shafts 5 are respectively installed in the upper part of the frame via bearing assemblies. The rear end of the lower roller shaft 5 is connected to the motor via a transmission wheel and a transmission belt. A synchronous driving gear 9 is provided on the lower roller shaft 5, and a synchronous driven gear 8 meshing with the synchronous driving gear 9 is provided on the upper roller shaft. The synchronous driving gear 9 and the synchronous driven gear 8 cooperate to realize the synchronous rotation of the upper and lower roller shafts. The upper roller shaft includes a power input section 7, an adjustment adapter section 6, and a power output section 3. The power input section 7 is installed in the rear part of the frame via an input bearing. The power output section 3 is installed in the front part of the frame via an output bearing and can slide up and down. The rear end of the adjustment adapter section 6 is hinged to the front end of the power input section 7, allowing the adjustment adapter section 6 to swing up and down relative to the power input section 7. The front end of the adjustment adapter section 6 is axially sliding relative to the rear end of the power output section 3 (but cannot rotate relative to it). Figure 1 As can be seen, the front end of the adjusting adapter section 6 is provided with a connecting slot, and the rear end of the power output section 3 can be axially slidably inserted into the connecting slot. A transmission groove is provided on the side wall of the connecting slot, and a torque transmission column 4 that can slide back and forth within the transmission groove is provided on the power output section 3 within the transmission groove. When the adjusting adapter section 6 rotates, the torque is transmitted to the power output section 3 via the transmission groove and the torque transmission column 4. The power output section 3 can slide axially (back and forth) relative to the adjusting adapter section within a short distance. Figure 1 , Figure 2 As can be seen, a lower support seat 11 is provided at the front of the frame, and a lower bearing seat 12 is provided on the lower support seat 11. The front part of the lower roller shaft 5 is installed in the lower bearing seat 12 via a bearing. A left limiting arm and a right limiting arm 18 are respectively provided on the lower support seats 11 on the left and right sides of the lower bearing seat 12. An upper bearing seat 15 that can slide up and down is provided between the left limiting arm and the right limiting arm 18 above the lower bearing seat 12. Limiting bars 16 are respectively provided on the left limiting arm and the right limiting arm 18 on the front and rear sides of the upper bearing seat 15. The power output section 3 is installed on the upper bearing seat 15 via an output bearing. Figure 1As can be seen, the output bearings include deep groove ball bearings and tapered roller bearings; the upper ends of the left and right limiting arms 18 are provided with pressure beams 2, and the hydraulic cylinder 1 is mounted on the pressure beams 2. The piston rod of the hydraulic cylinder 1 passes through the pressure beams and is connected to the upper bearing seat. The hydraulic cylinder can drive the upper bearing seat 15 to move up and down, thereby driving the power output section to move up and down, changing the distance between the upper and lower bending rollers. This allows for the adaptation to metal plates of different thicknesses, and the upper and lower bending rollers of different diameters and models can be replaced. It can roll metal protective plates of various sizes and shapes, and has a wide range of applications. Under the limitation of the left and right limiting arms and the limiting stop, the upper bearing seat can only slide up and down, ensuring the matching accuracy of the upper and lower bending rollers when the hydraulic cylinder 1 drives the upper bending roller to move up and down and adjust its position via the power output section 3. Furthermore, the left end face of the power output section and the left side face of the lower bearing housing are respectively provided with alignment marks that match each other; when the alignment mark on the left end face of the power output section is aligned with the alignment mark on the left side face of the lower bearing housing, the adjustment and adaptation section can swing up and down relative to the power input section.

[0018] In this embodiment, the left limiting arm is equipped with a bending width baffle 17 whose front-to-back position is adjustable. Adjusting the front-to-back position of the bending width baffle 17 can change the bending position of the metal protective plate, thus broadening its applicability.

[0019] In use, the upper and lower roller shafts rotate relative to each other, causing the upper and lower bending rollers to rotate relative to each other. One side of the metal protective plate to be processed is pushed between the upper and lower bending rollers from the left side. The upper and lower bending rollers clamp and roll one side of the metal protective plate, causing it to move to the right. The small-diameter section, variable-diameter section, and large-diameter section of the upper and lower bending rollers work together to roll one side of the metal protective plate into a Z-shaped bend. This invention has the advantages of simple structure, low cost, easy and convenient operation, and high cost-effectiveness.

Claims

1. A cantilever rolling mill for manufacturing yacht metal protective plates, comprising a cantilever rolling mill body, the cantilever rolling mill body including an upper roller shaft and a lower roller shaft, characterized in that, An upper bending roller and a lower bending roller are respectively installed on the upper roller shaft and the lower roller shaft. The upper bending roller and the lower bending roller each include a small diameter section, a variable diameter section and a large diameter section. The variable diameter section is located between the small diameter section and the large diameter section. The lower bending roller is installed on the lower roller shaft with the large diameter section in front and the small diameter section behind. The upper bending roller is installed on the upper roller shaft with the large diameter section behind and the small diameter section in front. The upper bending roller and the lower bending roller are aligned vertically.

2. The cantilever rolling mill for preparing yacht metal protective plates according to claim 1, characterized in that, The cantilever rolling mill used for preparing yacht metal protective plates has a small-diameter section and a large-diameter section that are cylindrical, and a variable-diameter section that is frustum-shaped; the angle between the generatrix of the variable-diameter section and the axis is 15°-90°.

3. The cantilever rolling mill for preparing yacht metal protective plates according to claim 2, characterized in that, The angle between the generatrix of the variable diameter section and the axis is 25°-35°.

4. The cantilever rolling mill for preparing yacht metal protective plates according to claim 1, characterized in that, The cantilever mill body includes a frame and an electric motor. The electric motor is installed in the lower part of the frame. The upper and lower roller shafts are respectively installed in the upper part of the frame via bearing assemblies. The rear end of the lower roller shaft is connected to the electric motor via a transmission wheel and a transmission belt. The lower roller shaft is provided with a synchronous drive gear, and the upper roller shaft is provided with a synchronous driven gear that meshes with the synchronous drive gear.

5. The cantilever rolling mill for preparing yacht metal protective plates according to claim 4, characterized in that, The upper roller shaft includes a power input section, an adjustment and adaptation section, and a power output section. The power input section is mounted at the rear of the frame via an input bearing, and the power output section is mounted at the front of the frame via an output bearing. The rear end of the adjustment and adaptation section is hinged to the front end of the power input section, and the front end of the adjustment and adaptation section is axially slidably connected to the rear end of the power output section. A hydraulic cylinder is provided on the frame, and the piston rod of the hydraulic cylinder is connected to the bearing seat of the output bearing.

6. The cantilever rolling mill for preparing yacht metal protective plates according to claim 5, characterized in that, The front end of the adjustment adapter section is provided with a connecting slot, and the rear end of the power output section can be axially slidably inserted into the connecting slot. The side wall of the connecting slot is provided with a transmission groove, and the power output section in the transmission groove is provided with a torque transmission column that can slide back and forth in it.

7. The cantilever rolling mill for preparing yacht metal protective plates according to claim 5, characterized in that, The frame has a lower support seat at the front, and a lower bearing seat is provided on the lower support seat. The front part of the lower roller is installed in the lower bearing seat via a bearing. A left limiting arm and a right limiting arm are respectively provided on the lower support seats on the left and right sides of the lower bearing seat. An upper bearing seat that can slide up and down is provided between the left and right limiting arms above the lower bearing seat. Limiting bars are provided on the left and right limiting arms on the front and rear sides of the upper bearing seat. The power output section is installed on the upper bearing seat via an output bearing. A pressure beam is provided at the upper end of the left and right limiting arms. The hydraulic cylinder is installed on the pressure beam, and the piston rod of the hydraulic cylinder is connected to the upper bearing seat.

8. The cantilever rolling mill for preparing yacht metal protective plates according to claim 7, characterized in that, The left limiting arm is equipped with a bending width baffle that can be adjusted in front and behind.

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