Rim edge rolling device

Abstract

The utility model relates to the technical field of rim manufacturing, in particular to a rim rolling device. The utility model discloses a rim rolling device which comprises a machine frame, a pressing wheel assembly is arranged on the machine frame, the pressing wheel assembly comprises a first pressing wheel and two second pressing wheels, the two second pressing wheels are arranged in a bilateral symmetry mode with the first pressing wheel as the central axis, the first pressing wheel is oppositely located on the upper side of the center position of the two second pressing wheels, and the second pressing wheel is located on the lower side of the center position of the first pressing wheel. The first pressing wheel and the two second pressing wheels are arranged in a delta shape, a power assembly used for driving the pressing wheel assembly is arranged on the machine frame, an annular groove is formed in the outer circle face of the first pressing wheel, extending parts extending in the radial direction are arranged on the outer circle faces of the two second pressing wheels, and the extending parts are matched with the annular groove. The automatic feeding device has the advantage of being capable of achieving automatic feeding of linear aluminum profiles by improving friction force before bending.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel rim manufacturing, in particular to a wheel rim rolling device. Background Art

[0002] Chinese patent application No. 201521123881.2 discloses an automatic steel ring rolling device, including a frame with three pressure wheels arranged in a herringbone shape. The upper pressure wheel is the upper pressure wheel, and the lower pressure wheels are the lower left pressure wheel and the lower right pressure wheel respectively. The lower right pressure wheel is higher than the lower left pressure wheel. An annular groove is provided on all three pressure wheels. A feeding platform is provided at the feeding end of the frame, a roller is provided in the middle of the feeding platform, a drive roller is provided above the roller, and an annular groove is provided on the drive roller.

[0003] In the above technical solution, the steel strip is bent by three pressure rollers in the shape of a triangle, and the operator does not need to hold the steel strip by hand to feed it into the pressure rollers, thereby realizing automatic feeding in the process of producing rims. However, when the above technical solution is used to process other types of aluminum profile rims, such as bicycle rims, electric bicycle rims, tricycle rims or pedal light motorcycle rims, since the width of the above types of aluminum profile rims is relatively narrow, the surface area of ​​contact between the pressure rollers and the aluminum profile in the blank state is relatively small, and the aluminum profile in the blank state cannot be fed between the pressure rollers by its own friction force. Therefore, the operator still needs to hold the aluminum profile in the blank state to feed it between the pressure rollers, and the use effect is not good. Utility Model Content

[0004] The utility model aims to provide a rim rolling device which can replace manual loading of materials by workers through automatic loading before bending.

[0005] To achieve the above-mentioned purpose, the utility model discloses a rim rolling device, including a frame, a pressure wheel assembly is provided on the frame, the pressure wheel assembly includes a first pressure wheel and two second pressure wheels, the two second pressure wheels are symmetrically arranged with the first pressure wheel as the central axis, the first pressure wheel is relatively located on the upper side of the center position of the two second pressure wheels, the first pressure wheel and the two second pressure wheels are arranged in a herringbone shape, the frame is provided with a power assembly for driving the pressure wheel assembly, the outer cylindrical surface of the first pressure wheel is provided with an annular groove, the outer cylindrical surface of the two second pressure wheels is provided with an extension portion extending radially, and the extension portion fits into the annular groove.

[0006] When the aluminum profile needs to be rolled, the direction of one side of the first pressing wheel and one of the second pressing wheels is used as the feeding direction, and the direction of one side of the first pressing wheel and the other second pressing wheel is used as the discharging direction. The straight aluminum profile supported by the frame is placed between the first pressing wheel and the second pressing wheel in the feeding direction, and the power component drives the first pressing wheel and the second pressing wheel to rotate in opposite directions. Since the annular groove of the first pressing wheel and the extension of the second pressing wheel fit together, the annular groove and the extension are used to increase the contact area with the straight aluminum profile, thereby increasing the friction. The first pressing wheel and the second pressing wheel use the friction to drive the straight aluminum profile to automatically feed. The first pressing wheel and the second pressing wheel in the discharging direction bend the straight aluminum profile to form an arc-shaped aluminum profile with a certain curvature. With the continuous feeding of the subsequent straight aluminum profile, the arc-shaped aluminum profile located in the discharging direction is extended into a circle shape, thereby forming a ring-shaped aluminum profile.

[0007] The utility model arranges the first pressing wheel and the two second pressing wheels in a herringbone shape, and provides an annular groove on the first pressing wheel and an extension portion on the second pressing wheel, so that the contact area between the first pressing wheel and the second pressing wheel and the straight aluminum profile is increased, thereby improving the friction force. Even aluminum profiles with narrow rim widths and small rim diameters (such as bicycle rims, electric bicycle rims, tricycle rims or pedal light motorcycle rims, etc.) can achieve subsequent automatic feeding of straight aluminum profiles by friction force without manual assistance, greatly improving production efficiency and safety during operation. The utility model has the advantage of being able to achieve automatic feeding of straight aluminum profiles by increasing friction force before bending.

[0008] Preferably, a notch is provided on the extension portion of the second pressing wheel located on one side of the discharging direction.

[0009] Since the first pressing wheel and the two second pressing wheels are arranged in a herringbone shape, the first pressing wheel and the second pressing wheel located in the feeding direction will bend the straight aluminum profile downward. At this time, the angle between the straight aluminum profile and the outer cylindrical surface of the second pressing wheel on the side of the discharging direction increases, making it difficult to enter the gap between the first pressing wheel and the second pressing wheel located in the discharging direction. The notch is provided to reserve space for the straight aluminum profile to continue moving forward, so that the inner wall of the notch is used to drive the head of the straight aluminum profile to bend along the rotation direction of the second pressing wheel, thereby ensuring the feasibility of automatic feeding.

[0010] Preferably, a notch is provided on the extension portion of each of the two second pressure wheels.

[0011] The same structure of the second pressing wheel facilitates the processing of the second pressing wheel for batch production and facilitates replacement during mold adjustment. There is no need to replace other pressing wheels, and it can be ensured that the second pressing wheel located in the discharge direction has a notch.

[0012] Preferably, the opening angle of the notch is a, and a is less than sixty degrees and greater than thirty degrees.

[0013] When the opening angle of the notch is greater than sixty degrees, the probability of the straight aluminum profile being in incomplete contact with the lower end face of the notch when entering the notch increases. At this time, the straight aluminum profile begins to bend before it is in place, which increases the difficulty of bending. Moreover, since the larger the opening angle, the closer the lower end face of the notch is to the tangent direction of the extension part of the second pressure wheel, resulting in a lower bending force for the straight aluminum profile, which increases the difficulty of bending.

[0014] Preferably, the frame is provided with a guide plate which is arranged obliquely relative to the end surface of the frame, and the guide plate is used to curl and stack the aluminum profile rims in the same plane along a spiral line.

[0015] When the ring-shaped aluminum profile rotates to the upper side of the first pressure wheel, the feeding direction of the straight aluminum profile state is the discharging direction of the ring-shaped aluminum profile. At this time, the ring-shaped aluminum profile is against the guide plate, and the ring-shaped aluminum profile continues to be discharged along the outer surface of the guide plate, thereby forming a spiral aluminum profile, maintaining continuous feeding, and preventing the discharge length from being limited by a single ring-shaped aluminum profile.

[0016] Preferably, a first slide groove is provided on the side of the frame close to the first pressure wheel, extending in a direction away from the two second pressure wheels, and the first pressure wheel is equipped with a first translation device for moving the first pressure wheel in a direction away from the two second pressure wheels, and the first pressure wheel can be driven to move by the first translation device, thereby adjusting the gap between the first pressure wheel and the two second pressure wheels.

[0017] The first translation device is any existing transmission structure that can achieve linear reciprocating motion and has a power output end that is rotatably connected to a pressure wheel, such as an electric push rod assembly or a ball screw transmission device.

[0018] Preferably, a bearing roller is provided on the frame, and the bearing roller is located on the side close to the rim discharge direction, and the outer cylindrical surface of the bearing roller is close to the first pressure wheel and abuts against the aluminum profile rim.

[0019] The supporting rollers can support the ring-shaped aluminum profile to prevent the bending shape of the ring-shaped aluminum profile at the discharge point from being deformed due to its own gravity.

[0020] Preferably, a second slide groove extending in a direction away from the first pressure wheel is provided on the side of the frame close to the first pressure wheel, and the supporting roller is equipped with a second translation device for moving the supporting roller in a direction away from the first pressure wheel, thereby supporting the ring-shaped aluminum profiles of different diameters; wherein the second translation device is any existing transmission structure that can realize linear reciprocating motion and can realize rotational connection between the power output end and the pressure wheel, such as an electric push rod assembly and a ball screw transmission device.

[0021] The utility model can utilize friction force to realize the automatic feeding of subsequent straight aluminum profiles, greatly improving production efficiency and safety during operation, and has the advantage of realizing automatic feeding of straight aluminum profiles by increasing friction force before bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the present utility model.

[0023] Figure 2 It is a side structural schematic diagram of the present utility model.

[0024] Figure 3 This is a schematic diagram of the explosion structure of the second pressure wheel of the utility model.

[0025] Figure 4 This is a schematic diagram of the cross-sectional shape of the linear aluminum profile of the present invention.

[0026] Figure 5 This is a schematic diagram of the axial cross-sectional structure of the second pressure wheel of the present invention.

[0027] In the figure: 11, frame; 121, first slide groove; 122, second slide groove; 13, first pressure wheel; 131, annular groove; 14, second pressure wheel; 141, extension part; 142, notch; 15, carrying roller; 16, second translation device; 17, guide plate; 21, first translation device; 22, first power motor; 23, second power motor; 24, power output shaft. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] Depend on Figure 1As shown, this embodiment discloses a rim winding device, including a frame 11, a pressure wheel assembly is provided on the frame 11, the pressure wheel assembly includes a first pressure wheel 13 and two symmetrically arranged second pressure wheels 14, the first pressure wheel 13 is located above the middle of the two second pressure wheels 14, and the first pressure wheel 13 and the two second pressure wheels 14 are arranged in a herringbone shape. A power assembly for driving the pressure wheel assembly is provided on the frame 11, and the power assembly includes a first power motor 22 for driving the first pressure wheel 13 to rotate and a second power motor 23 for driving the two second pressure wheels 14 to rotate in the opposite direction of the rotation direction of the first pressure wheel 13. Figure 3 As shown, the first power motor 22 and the second power motor 23 drive the first pressure wheel 13 and the second pressure wheel 14 to rotate through the power output shaft 24, and a first slide groove 121 extending in a direction away from the two second pressure wheels 14 is provided on the frame 11 near the first pressure wheel 13. The first pressure wheel 13 is equipped with a first translation device 21 for moving the first pressure wheel 13 away from the two second pressure wheels 14. A carrying roller 15 is provided on the frame 11. The carrying roller 15 is located on the side close to the rim discharging direction. The outer cylindrical surface of the carrying roller 15 is close to the first pressure wheel 13 and is against the aluminum profile rim. A second slide groove 122 extending in a direction away from the first pressure wheel 13 is provided on the side close to the first pressure wheel 13 on the frame 11. The carrying roller 15 is equipped with a second translation device 16 for moving the carrying roller 15 away from the first pressure wheel 13. Figure 2 As shown, the frame 11 is provided with a guide plate 17 which is inclined relative to the end face of the frame 11. The guide plate 17 is gradually inclined outward from top to bottom and from the discharge direction to the feeding direction of the straight aluminum profile 20. The guide plate 17 is used to curl and stack the aluminum profile rims in the same plane along a spiral line. The outer circumferential surface of the first pressing wheel 13 is provided with an annular groove 131, and the outer circumferential surfaces of the two second pressing wheels 14 are provided with an extension portion 141 extending radially, which is matched with the annular groove 131. A notch 142 is provided on the extension portion 141 of the two second pressing wheels 14.

[0030] Depend on Figure 4 As shown, the opening angle of the notch 142 is a, wherein 30°<a<60°.

[0031] When the opening angle a of the notch 142 is 45°, when the lower end surface of the notch 142 abuts against the linear aluminum profile 20 , the linear aluminum profile 20 is driven along the rotation direction of the second pressing wheel 14 , thereby ensuring the bending effect.

[0032] Depend on Figure 5 As shown, when the straight aluminum profile 20 enters the gap between the first pressing wheel 13 and the second pressing wheel 14, the annular groove 131 of the first pressing wheel 13 and the extension 141 of the second pressing wheel 14 can connect with the lower surface and the upper surface of the straight aluminum profile 20, thereby increasing the friction.

[0033] When the aluminum profile needs to be rolled, the straight aluminum profile 20 supported by the frame 11 is placed between the first pressing wheel 13 and the second pressing wheel 14 in the feeding direction, and the first pressing wheel 13 and the second pressing wheel 14 in the discharging direction. The first power motor 22 and the second power motor 23 respectively drive the first pressing wheel 13 and the second pressing wheel 14 to rotate in opposite directions, and the first pressing wheel 13 and the second pressing wheel 14 use friction to drive the straight aluminum profile 20 to feed. The first pressing wheel 13 and the second pressing wheel 14 located in the feeding direction will bend the straight aluminum profile 20 downward. At this time, the angle between the straight aluminum profile 20 and the outer cylindrical surface of the second pressing wheel 14 on the side of the discharging direction increases, making it difficult to enter the gap between the first pressing wheel 13 and the second pressing wheel 14 in the discharging direction. The notch 142 is provided to pre- Leave space for the straight aluminum profile 20 to continue moving forward, so that the inner wall of the notch 142 is used to drive the head of the straight aluminum profile 20 to bend along the rotation direction of the second pressing wheel 14. The first pressing wheel 13 and the second pressing wheel 14 in the discharge direction bend the straight aluminum profile 20 to form an arc-shaped aluminum profile with a certain curvature. As the subsequent straight aluminum profile 20 is continuously fed, the arc-shaped aluminum profile in the discharge direction is extended into a circle shape, thereby forming a ring-shaped aluminum profile. When the ring-shaped aluminum profile is against the supporting roller 15, the supporting roller 15 can support and assist in guiding the ring-shaped aluminum profile, so that the ring-shaped aluminum profile moves toward the side of the guide plate 17. When the ring-shaped aluminum profile is against the guide plate 17, the ring-shaped aluminum profile continues to be discharged along the outer surface of the guide plate 17, thereby forming a spiral aluminum profile, which is used to supply materials for subsequent processes to produce bicycle rims, electric bicycle rims, tricycle rims or pedal light motorcycle rims with smaller diameters.

Claims

1. A rim rolling device, comprising a frame, characterized in that: The frame is provided with a pressure wheel assembly, and the pressure wheel assembly includes a first pressure wheel and two second pressure wheels. The two second pressure wheels are symmetrically arranged with the first pressure wheel as the central axis. The first pressure wheel is relatively located on the upper side of the center position of the two second pressure wheels. The first pressure wheel and the two second pressure wheels are arranged in a herringbone shape. The frame is provided with a power assembly for driving the pressure wheel assembly, and the outer circumferential surface of the first pressure wheel is provided with an annular groove, and the outer circumferential surface of the two second pressure wheels is provided with an extension portion extending radially, and the extension portion fits into the annular groove.

2. A rim rolling device according to claim 1, characterized in that: A notch is formed on the extension portion of the second pressing wheel located on one side of the discharging direction.

3. The rim rolling device according to claim 1, characterized in that: The extension parts of the two second pressing wheels are each provided with a notch.

4. A rim rolling device according to claim 2 or 3, characterized in that: The opening angle of the notch is a, and a is less than sixty degrees and greater than thirty degrees.

5. The rim rolling device according to claim 4, characterized in that: The frame is provided with a guide plate which is arranged obliquely relative to the end surface of the frame, and the guide plate is used to curl and stack the aluminum profile rims on the same plane along a spiral line.

6. The rim rolling device according to claim 4, characterized in that: A first sliding groove extending in a direction away from the two second pressing wheels is provided on the frame near the first pressing wheel. The first pressing wheel is equipped with a first translation device for moving the first pressing wheel in a direction away from the two second pressing wheels.

7. The rim rolling device according to claim 4, characterized in that: The frame is provided with a bearing roller, which is located on the side close to the rim discharge direction, and the side of the outer cylindrical surface of the bearing roller close to the first pressure wheel is against the aluminum profile rim.

8. The rim rolling device according to claim 7, characterized in that: A second sliding groove extending in a direction away from the first pressing wheel is provided on the frame near the first pressing wheel, and the carrying roller is equipped with a second translation device for moving the carrying roller in a direction away from the first pressing wheel.

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