A winding drum machine for processing a motorcycle muffler pipe

Abstract

The utility model discloses a kind of reel machines for motorcycle muffler pipe body processing, belong to the field of muffler processing, including rack, first vertical plate and second vertical plate are vertically equipped on the upper side of rack, lower press roll is rotationally equipped on rack, lower press roll is made of elastic material, upper press roll is equipped between first vertical plate and second vertical plate;Sliding hole is vertically opened in first vertical plate and second vertical plate, first sliding block and second sliding block are respectively slidably arranged in the sliding hole of first vertical plate and second vertical plate, one end of upper press roll is rotationally installed in first sliding block;The other end of upper press roll is free end and extends into the sliding hole of second vertical plate.The beneficial effects of the scheme are as follows: upper press roll and lower press roll compress plate material tightly, and the plate material is wound into cylindrical shape after bending by the elastic deformation of lower press roll, the structure is simple, and the failure rate is reduced;One end of upper press roll is free end, which facilitates unloading and improves production efficiency;And the wear of plate material by elastic material is smaller, which is conducive to improving the appearance quality of motorcycle muffler.

Description

Technical Field

[0001] This utility model relates to the field of muffler processing, specifically to a rolling machine for processing motorcycle muffler tubes. Background Technology

[0002] A muffler is a component installed on a motorcycle's exhaust pipe to reduce motorcycle noise and improve exhaust efficiency. A muffler mainly consists of an outer shell, an inner liner, and sound-insulating materials. The outer shell is composed of multiple welded metal cylinders or conical tubes.

[0003] Manufacturing motorcycle mufflers requires a plate rolling machine to roll metal sheets into straight or conical cylinders. Common types include three-roll and four-roll plate rolling machines. When the sheet metal enters the rolling machine, its front edge extends between multiple rollers. The coordinated movement of the three or four rollers causes plastic deformation of the metal sheet. Continuous bending is achieved through the combination of the downward pressure of the upper roller and the rotation of the lower roller, ultimately rolling it into shapes such as cylinders and conical cylinders.

[0004] In the existing technology, plate rolling machines are usually three-roll or four-roll machines, which have high structural complexity. After the roll is completed, it is necessary to open one side of the equipment to remove the upper pressure roller before unloading, resulting in low production efficiency. In addition, the material is metal rollers, which have greater friction with the plate during rolling, reducing the appearance quality of the product. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is: how to improve the production efficiency of plate rolling machines and the product quality of motorcycle mufflers.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a rolling machine for processing motorcycle muffler tubes, including a frame, a first vertical plate and a second vertical plate fixedly mounted on the upper side of the frame, a lower pressure roller rotatably mounted on the frame, the lower pressure roller being made of elastic material, an upper pressure roller being mounted between the first vertical plate and the second vertical plate, and a rotary power source for driving the lower pressure roller to rotate being mounted on one side of the frame; Both the first and second upright plates have vertically formed sliding holes. A first slider and a second slider are slidably disposed in the sliding holes of the first and second upright plates, respectively. One end of the upper pressure roller is rotatably installed in the first slider. The first slider can move up and down to drive the upper pressure roller closer to or away from the lower pressure roller. The other end of the upper pressure roller is a free end that extends into the sliding hole of the second upright plate. When the second slider moves downward, it contacts the free end of the upper pressure roller and presses the upper and lower pressure rollers together.

[0007] The beneficial effects of this solution are as follows: the upper and lower pressure rollers press the sheet metal tightly, and the sheet metal is bent and rolled into a cylindrical shape by the elastic deformation of the lower pressure roller. The structure is simple and the failure rate is reduced. One end of the upper pressure roller is a free end, which facilitates unloading and improves production efficiency. In addition, the elastic material causes less wear on the sheet metal, which is beneficial to improving the appearance quality of the motorcycle muffler.

[0008] Preferably, a first cylinder and a second cylinder are respectively provided at the top of the first upright plate and the second upright plate, the telescopic end of the first cylinder is fixedly connected to the first slider, and the telescopic end of the second cylinder is fixedly connected to the second slider.

[0009] The advantages of adopting the above-mentioned preferred solution are: the cylinder output is stable, which can ensure that the shape and curvature are consistent before and after the winding process, thus improving product quality; and the cylinders on both sides can be adjusted separately, making them suitable for different working conditions.

[0010] Preferably, the lower end face of the second slider is provided with a semi-circular groove that mates with the outer circumferential wall of the free end of the upper pressure roller.

[0011] The advantages of adopting the above preferred solution are: it facilitates fixing the free end of the upper pressure roller, preventing slippage during the squeezing process of the upper and lower pressure rollers, thus avoiding safety accidents.

[0012] Preferably, the upper pressure roller is conical, and the diameter of the end closest to the first slider is larger than the diameter of the other end.

[0013] The advantages of adopting the above preferred solution are: the conical upper pressure roller can roll out a conical cylinder, the equipment is highly versatile, and the small end side is easy to disassemble the rolled cylinder.

[0014] Preferably, the elastic material is rubber or polyurethane.

[0015] The advantages of adopting the above-mentioned preferred solution are: good elasticity, strong wear resistance, and less risk of damaging the board material. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the overall design of this utility model; Appendix Figure 2 This is a schematic diagram of the sliding hole of this utility model; Explanation of reference numerals in the attached drawings: 1. Frame; 2. First vertical plate; 3. Second vertical plate; 4. Lower pressure roller; 5. Upper pressure roller; 6. Rotational power source; 7. Sliding hole; 8. First slider; 9. Second slider; 10. First cylinder; 11. Second cylinder; 12. Semicircular groove. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0018] Example 1 like Figures 1 to 2 As shown, a rolling machine for processing motorcycle muffler tubes includes a frame 1, with a first vertical plate 2 and a second vertical plate 3 vertically fixed on the upper side of the frame 1. A lower pressure roller 4 is rotatably mounted on the frame 1. The lower pressure roller 4 is made of elastic material. An upper pressure roller 5 is disposed between the first vertical plate 2 and the second vertical plate 3. A rotary power source 6 for driving the lower pressure roller 4 to rotate is disposed on one side of the frame 1. The first vertical plate 2 and the second vertical plate 3 are both vertically provided with sliding holes 7. The first slider 8 and the second slider 9 are respectively slidably arranged in the sliding holes of the first vertical plate 2 and the second vertical plate 3. One end of the upper pressure roller 5 is rotatably installed in the first slider 8. The first slider 8 can move up and down to drive the upper pressure roller 5 to move closer to or away from the lower pressure roller 4. The other end of the upper pressure roller 5 is a free end and extends into the sliding hole 7 of the second vertical plate 3. When the second slider 9 moves downward, it contacts the free end of the upper pressure roller 5 and presses the upper pressure roller 5 and the lower pressure roller 4 together.

[0019] In this embodiment, the outer shell of the motorcycle muffler includes a straight cylinder and a conical cylinder. A rolling machine is used to bend the metal sheet into the corresponding shape, and then weld it.

[0020] Initially, the lower pressure roller 4 and the upper pressure roller 5 are far apart. The worker places one end of the metal sheet on the lower pressure roller 4, and then the first slider 8 drives the upper pressure roller 5 to descend and approach the lower pressure roller 4. The upper pressure roller 5 cooperates with the lower pressure roller 4 to clamp the end of the metal sheet. Since the lower pressure roller 4 is made of elastic material, under the pressure of the upper pressure roller 5, the contact position between the lower pressure roller 4 and the metal sheet is concave and deformed, causing the metal sheet to bend upward and conform to the outer contour of the upper pressure roller 5. Then the second slider 9 descends and presses down on the free end of the upper pressure roller 5, so that the two ends of the upper pressure roller 5 are balanced. Then, the upper pressure roller 5 maintains pressure, and the rotating power source 6 drives the lower pressure roller 4 to rotate. The metal sheet is driven by the lower pressure roller 4, moving forward and being bent until it is completely rolled into a cylinder and wrapped around the upper pressure roller 5. Finally, the second slider 9 rises away from the free end of the upper pressure roller 5, and the first slider 8 rises to drive the upper pressure roller 5 away from the lower pressure roller 4. The worker takes the rolled cylinder out from the free end of the upper pressure roller 5.

[0021] In this embodiment, one end of the upper pressure roller 5 is a free end, which is restricted by the second slider 9 to facilitate unloading and improve production efficiency; and the elastic material causes less wear on the sheet metal when the drum rotates, which is beneficial to improving the appearance quality of the motorcycle muffler.

[0022] like Figures 1 to 2 As shown, the top ends of the first upright plate 2 and the second upright plate 3 are respectively provided with a first cylinder 10 and a second cylinder 11. The telescopic end of the first cylinder 10 is fixedly connected to the first slider 8, and the telescopic end of the second cylinder 11 is fixedly connected to the second slider 9.

[0023] In this embodiment, the first cylinder 10 controls the lifting and lowering of the first slider 8, and the second cylinder 11 controls the lifting and lowering of the second slider 9. The cylinder output is stable, which can ensure that the shape and curvature are consistent before and after the winding process, thus improving product quality. Moreover, the cylinders on both sides can be adjusted separately, making them suitable for different working conditions.

[0024] As a parallel technical solution in this embodiment, the first cylinder 10 and the second cylinder 11 can also be replaced with other components with telescopic functions, such as telescopic rods, hydraulic cylinders, etc.

[0025] like Figures 1 to 2 As shown, the lower end face of the second slider 9 is provided with a semi-circular groove 12 that mates with the outer circumferential wall of the free end of the upper pressure roller 5.

[0026] In this embodiment, when the semicircular groove 12 descends, it locks the free end of the upper pressure roller 5 for easy fixation. If the upper pressure roller 5 rotates, it will always remain within the semicircular groove 12. This prevents the upper pressure roller 5 from slipping relative to the lower pressure roller 4 due to rotation or pressure during the winding process, thus avoiding safety accidents.

[0027] like Figures 1 to 2 As shown, the upper pressure roller 5 is conical, and the diameter of the end closest to the first slider 8 is larger than the diameter of the other end.

[0028] In this embodiment, the upper pressure roller 5 can be either cylindrical or conical, depending on the needs of the winding drum, making the equipment more versatile; when the upper pressure roller 5 is conical, the smaller end side is easier to disassemble the wound drum.

[0029] like Figures 1 to 2 As shown, the elastic material is made of rubber or polyurethane.

[0030] In this embodiment, the elastic material is not likely to damage the appearance of the metal sheet when rotating. The lower pressure roller 4 needs to have a certain elasticity so that it can be indented under the pressure of the upper pressure roller 5, causing the metal sheet to bend with the upper pressure roller 5. However, it cannot be too soft and needs to be able to return to its original shape after the upper pressure roller 5 leaves. Therefore, in addition to rubber or polyurethane, other materials can be selected as long as they can achieve the above effects.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.

Claims

1. A rolling machine for processing motorcycle muffler pipes, comprising a frame (1), characterized in that, The frame (1) is vertically fixed with a first upright plate (2) and a second upright plate (3). A lower pressure roller (4) is rotatably mounted on the frame (1). The lower pressure roller (4) is made of elastic material. An upper pressure roller (5) is arranged between the first upright plate (2) and the second upright plate (3). A rotary power source (6) for driving the lower pressure roller (4) to rotate is provided on one side of the frame (1). The first vertical plate (2) and the second vertical plate (3) are both vertically provided with sliding holes (7). The first slider (8) and the second slider (9) are respectively slidably arranged in the sliding holes of the first vertical plate (2) and the second vertical plate (3). One end of the upper pressure roller (5) is rotatably installed in the first slider (8). The first slider (8) can drive the upper pressure roller (5) to move closer to or away from the lower pressure roller (4) when it moves up and down. The other end of the upper pressure roller (5) is a free end and extends into the sliding hole (7) of the second vertical plate (3). When the second slider (9) moves down, it contacts the free end of the upper pressure roller (5) and presses the upper pressure roller (5) and the lower pressure roller (4) together.

2. The rolling machine for processing motorcycle muffler tubes according to claim 1, characterized in that, The top ends of the first upright plate (2) and the second upright plate (3) are respectively provided with a first cylinder (10) and a second cylinder (11). The telescopic end of the first cylinder (10) is fixedly connected to the first slider (8), and the telescopic end of the second cylinder (11) is fixedly connected to the second slider (9).

3. A rolling machine for processing motorcycle muffler tubes according to claim 2, characterized in that, The lower end face of the second slider (9) is provided with a semi-circular groove (12) that matches the outer circumferential wall of the free end of the upper pressure roller (5).

4. A rolling machine for processing motorcycle muffler tubes according to claim 1, characterized in that, The upper pressure roller (5) is conical, and the diameter of the end closest to the first slider (8) is larger than the diameter of the other end.

5. A rolling machine for processing motorcycle muffler tubes according to any one of claims 1 to 4, characterized in that, The elastic material is made of rubber or polyurethane.

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