A double roller roller wheel comprising a gap filling roller
By designing a double-roller roller with a gap-filling wheel, the gap between the two rollers is eliminated, achieving uniform rolling within the narrow groove space. This solves the problem of leakage areas in existing technologies and ensures the continuity and quality of rolling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIXIAN (ZHANGZHOU) NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-26
AI Technical Summary
The existing dual-roller rollers have gaps in the narrow groove space, which prevents effective rolling at the bottom of the groove, resulting in a leakage area and affecting the rolling quality.
Design a double-roller roller with a gap-filling wheel. By combining a thin bracket and a gap-filling wheel, the gap between the two rollers is eliminated, and uniform rolling in narrow groove space is achieved. The combination structure of the thin bracket and the gap-filling wheel is adopted. The gap-filling wheel is installed on the inner bracket through a mandrel and extends into the gap of the main roller to fill the blank area.
It effectively eliminates the gap between the two wheels, achieves uniform rolling in the narrow groove space, avoids the leakage area, ensures the continuity of rolling, and can roll by contacting the bottom and sidewalls of the groove on three sides.
Smart Images
Figure CN224408535U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rolling technology, and in particular relates to a double-wheel rolling roller containing a gap-filling wheel. Background Technology
[0002] Roll forming, as a highly efficient precision machining method, is widely used in processes such as plastic deformation, surface strengthening, and precision forming of materials. It is particularly prevalent in fields such as carbon fiber composite material processing, tire manufacturing, and the production of precision mechanical transmission components. Roll forming rollers are used to roll within narrow spaces in specialized structures (such as narrow grooves or recesses). For example, in the processing of carbon fiber bicycle rims, during the pre-forming stage, multiple layers of carbon yarn are laid according to a designed trajectory in the narrow groove cavity of the mold, and uniform and sufficient pressure is applied to the carbon yarn using rollers. Similarly, in tire manufacturing, when the rubber sheet is bonded within the narrow groove of the forming mold, rollers are needed to achieve tight compaction. Furthermore, components such as guide rails in automated production lines and slide rails in precision instruments often require surface finishing or stress relief on the bottom and sides of their narrow groove structures using rollers, thus necessitating uniform pressure distribution on three sides.
[0003] Currently, there are two main types of rollers: single-roller rollers and ordinary double-roller rollers. Single-roller rollers have a simple structure, but their contact area is limited, and they typically require a double-sided fixed bracket for installation. This installation method occupies space on both sides, preventing them from reaching the bottom of narrow grooves (such as U-shaped grooves and guide rail grooves), resulting in ineffective rolling of the groove bottom. On the other hand, while ordinary double-roller rollers can increase the contact area to some extent, they are usually installed with an intermediate support bracket between the two main rollers. This installation method, due to protruding fasteners and gaps between the rollers (typically >2mm), prevents the middle of the two main rollers from contacting the middle of the groove bottom. In other words, there is often a gap between the two main rollers that is difficult to eliminate. The area at the bottom of the narrow groove corresponding to this gap cannot be effectively rolled, resulting in a "missing pressure zone" that affects the rolling quality.
[0004] Therefore, it is necessary to improve the structure of the existing double-wheel rolling roller and provide a double-wheel rolling roller with a gap-filling wheel that can effectively fill the gap between the two wheels, adapt to narrow groove spaces, and achieve uniform rolling. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a reasonably designed double-wheel rolling roller with a gap-filling wheel that can effectively fill the gap between the two wheels, adapt to narrow groove spaces, and achieve uniform rolling, thereby solving the aforementioned problems in existing technologies.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A double-roller roller with a gap-filling wheel includes a thin support and two main rollers. The thin support includes a thin plate, and the two main rollers are rotatably mounted on the lower left and right sides of the thin plate via bearings. The roller also includes a gap-filling wheel and an inner support. The inner support is mounted on the lower end of the thin plate, and the gap-filling wheel is rotatably mounted on the inner support via a spindle. The outer edge of the gap-filling wheel extends into the gap between the outer edges of the two main rollers.
[0008] Preferably, the inner support includes two inner side plates, which are symmetrically installed on the lower left and right sides of the thin plate, and the lower ends of the two inner side plates are respectively provided with a first mounting structure for rotating and installing the gap-filling wheel.
[0009] Preferably, the first mounting structure is a U-shaped groove with the opening facing downwards at the lower end of the inner side plate, and the gap-filling wheel is engaged in the U-shaped groove of the two inner side plates by rotating the spindle.
[0010] Preferably, the first mounting structure is a through hole that runs through the lower end of the inner side plate from left to right, and the gap-filling wheel is inserted into the through hole of the two inner side plates by rotating the spindle.
[0011] Preferably, the thin bracket further includes a bearing housing, which is fixedly disposed between the thin plate and the two inner side plates.
[0012] Preferably, the inner surfaces of both main rollers are provided with outwardly arched concave surfaces, and the center of the concave surfaces is provided with a convex ring for pressing the bearing.
[0013] Preferably, the thin bracket further includes a second mounting structure for mounting the dual-wheel rolling rollers, the second mounting structure being fixedly connected to the upper end of the thin plate.
[0014] Preferably, the second mounting structure is any one of a straight base plate, a U-shaped double-ear plate, a columnar clamping plate, and a pin-type clamping plate.
[0015] Preferably, the thin plate and the two main rollers are detachably connected by a locking connector. The locking connector includes a connecting rod and a connector, both of which are T-shaped. The end of the connecting rod is provided with an internal threaded hole, and the end of the connector is provided with an external thread that is threaded to the internal threaded hole.
[0016] Preferably, both main rollers have inwardly recessed grooves on their outer surfaces.
[0017] This utility model adopts the above technical solution and has the following technical effects:
[0018] This invention features a gap-filling wheel that fills the gap between two traditional main rollers, eliminating the bottom gap between the two rollers. This allows the gap-filling wheel to contact the middle position of the bottom of the corresponding narrow groove for rolling, thus avoiding the formation of a "lost pressure area" and effectively ensuring rolling continuity.
[0019] This utility model features a thin bracket that allows it to be supported and installed between two main rollers. Furthermore, the outer surfaces of both main rollers are provided with inwardly recessed grooves, which avoids occupying space on both sides. This allows the entire main roller to be placed into the narrow groove according to actual usage needs, simultaneously contacting the bottom of the groove and the side walls for three-sided rolling of the workpiece.
[0020] In addition, the inner surfaces of the two main rollers of this invention are provided with outwardly arched concave surfaces, which can form an accommodating cavity between the two main rollers, which can hide internal components such as the locking connector, the gap filling wheel and the inner bracket that serves as its support structure, thereby avoiding interference during operation. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows:
[0022] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;
[0023] Figure 2 This is a cross-sectional structural diagram of Embodiment 1 of the present utility model;
[0024] Figure 3 This is a three-dimensional structural diagram of Embodiment 2 of the present invention;
[0025] Figure 4 This is a cross-sectional structural diagram of Embodiment 3 of the present invention;
[0026] Figure 5 This is an exploded view of Embodiment 3 of the present invention;
[0027] Figure 6 This is a three-dimensional structural diagram of Embodiment 4 of the present utility model;
[0028] Figure 7 This is a cross-sectional structural diagram of Embodiment 5 of the present invention;
[0029] Figure 8 This is an exploded view of Embodiment 5 of the present invention;
[0030] Figure 9 This is a three-dimensional structural diagram of Embodiment 6 of the present invention;
[0031] In the picture:
[0032] 10. Thin bracket; 11. Thin plate; 12. Bearing housing; 13. Second mounting structure; 14. Limiting ring; 15. Mounting hole; 16. Bearing spacer; 20. Main roller; 21. Concave surface; 22. Convex ring; 23. Groove; 30. Bearing; 40. Gap filler wheel; 41. Mandrel; 50. Inner bracket; 51. Inner side plate; 52. First mounting structure; 60. Locking connector; 61. Connecting rod; 62. Connector head. Detailed Implementation
[0033] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings:
[0034] See Figure 1-9 As shown in one example, the present invention includes a double-roller pressing wheel with a gap-filling wheel, comprising a thin bracket 10 and two main rollers 20. The thin bracket 10 includes a thin plate 11, and the two main rollers 20 are rotatably mounted on the lower left and right sides of the thin plate 11 via bearings 30. To eliminate the gap between the two rollers, the present invention also includes a gap-filling wheel 40 and an inner bracket 50. The inner bracket 50 is mounted on the lower end of the thin plate 11, and a mandrel 41 is fixedly inserted through the center of the gap-filling wheel 40. The left and right ends of the mandrel 41 are rotatably mounted on the inner bracket 50, and the outer edge of the gap-filling wheel 40 extends into the gap between the outer edges of the two main rollers 20. Preferably, the outer circle of the gap-filling wheel 40 is in tangential contact with the main rollers 20.
[0035] In this embodiment, the gap-filling wheel 40 is designed to fill the gap between the two traditional main rollers 20, thereby eliminating the bottom gap between the two rollers. This allows the gap-filling wheel 40 to contact the middle position of the bottom of the corresponding narrow groove space for rolling, thus avoiding the formation of a "leakage zone" and effectively ensuring the continuity of rolling.
[0036] As a preferred embodiment, based on the above structure, preferably, the diameter of the gap-filling wheel 40 is 1 / 4 to 1 / 3 of the diameter of the main roller 20.
[0037] Based on the above structure, preferably, both the gap-filling wheel 40 and the main roller 20 are rubber-coated wheels. This design allows the soft wheel surface to compact the workpiece in the groove without damaging the workpiece.
[0038] Based on the above structure, preferably, the rubber coating layer of the rubber-coated wheel is made of polyurethane material with a Shore hardness of 70±3 A, and the wheel core of the rubber-coated wheel is made of nylon material.
[0039] As a preferred embodiment, based on the above structure, preferably, the thin plate 11 and the two main rollers 20 are detachably connected by a locking connector 60. The locking connector 60 includes a connecting rod 61 and a connector 62. Both the connecting rod 61 and the connector 62 are T-shaped structures. The end of the connecting rod 61 is provided with an internal threaded hole, and the end of the connector 62 is provided with an external thread that is threadedly connected to the internal threaded hole.
[0040] Based on the above structure, preferably, both the connecting rod 61 and the connector 62 have tool grooves at their ends for easy screwing.
[0041] In this embodiment, the interlocking connector 60 is provided so that after the internal components are assembled, the two main rollers 20 can be pressed close to each other on the bearing 30, and then the entire double roller is interlocked into one unit through the threaded connection between the connecting rod 61 and the connector 62.
[0042] As a preferred embodiment, based on the above structure, preferably, the inner surfaces of both main rollers 20 are provided with outwardly arched concave surfaces 21, and the middle of the concave surfaces 21 is provided with a convex ring 22 for pressing against the bearing 30 on the same side.
[0043] In this embodiment, by setting an outwardly arched concave surface 21, an inner cavity can be formed between the two main rollers 20, thereby concealing and installing the gap-filling wheel 40 and the inner support 50 as its supporting structure, while also preventing interference during operation; by setting a convex ring 22, the main rollers 20 can effectively contact the bearing 30, thereby ensuring that the main rollers 20 can rotate normally.
[0044] As a preferred embodiment, based on the above structure, preferably, both main rollers 20 have inwardly recessed grooves 23 on their outer surfaces.
[0045] In this embodiment, by providing an inwardly recessed groove 23, it is possible not only to prevent the ends of the connecting rod 61 and the connector 62 from protruding from the outer side of the main roller 20 after assembly, thus avoiding them occupying the space on both sides, but also to allow the outer sides of the two main rollers 20 to contact the two sides of the narrow groove space for rolling according to actual usage needs. During use, the entire wheel can be placed in the narrow groove to roll the workpiece at the bottom of the groove or even the side wall, with uniform pressure distribution on three sides, thereby realizing that the double rollers can contact the bottom of the groove and the two side walls at the same time for three-sided rolling.
[0046] As a preferred embodiment, based on the above structure, the inner support 50 preferably includes two inner side plates 51, which are symmetrically installed on the lower left and right sides of the thin plate 11. The lower ends of the two inner side plates 51 are respectively provided with a first mounting structure 52 for rotating and mounting the gap filling wheel 40.
[0047] As a preferred embodiment, based on the above structure, the thin bracket 10 further includes a bearing seat 12, which is fixedly inserted between the thin plate 11 and the two inner side plates 51 for mounting the bearing 30.
[0048] In this embodiment, the bearing seat 12 not only facilitates the housing and installation of the bearing 30, but also allows for initial fixation when the thin plate 11 and the two inner side plates 51 are independent components.
[0049] Example 1
[0050] like Figure 1 or Figure 2 As shown, based on the structure of any of the above embodiments, preferably, the upper part of the thin plate 11 is provided with a plurality of mounting holes 15.
[0051] In this embodiment, the mounting holes 15 allow the double rollers to be mounted on external equipment using conventional methods such as bolts. Meanwhile, the bearing 30 is a double bearing, and the two main rollers 20 can be rotated and mounted through the double bearing, thus forming a double bearing single-plate mounting structure.
[0052] Example 2
[0053] like Figure 3 As shown, unlike Embodiment 1 above, the thin bracket 10 also includes a second mounting structure 13 for mounting the double rollers. The second mounting structure 13 is fixedly connected to the upper end of the thin plate 11, and a plurality of mounting holes 15 are formed on the second mounting structure 13.
[0054] In one implementation, the second mounting structure 13 is a straight base plate with several mounting holes 15 formed on the base plate.
[0055] In this embodiment, the base plate and its mounting holes 15 allow the double rollers to be mounted on external equipment using conventional methods such as bolts. At the same time, the bearing 30 is a double bearing, and the two main rollers 20 can be rotated and mounted through the double bearing, thus forming a double bearing base plate mounting structure.
[0056] Example 3
[0057] like Figure 4 or Figure 5 As shown, unlike Embodiment 2 above, the bearing 30 is a single bearing, and the two main rollers 20 can be rotated and installed through the single bearing, thereby forming a single bearing base plate type installation structure.
[0058] Example 4
[0059] like Figure 6As shown, unlike Embodiment 2 above, in another implementation, the second mounting structure 13 is a U-shaped double-ear plate with several mounting holes 15 formed on the double-ear plate.
[0060] In this embodiment, the double-ear plate and its mounting holes 15 allow the double-roller rollers to be mounted on external equipment using conventional methods such as bolts. At the same time, the bearing 30 is a double bearing, and the two main rollers 20 can be rotated and mounted through the double bearing, thus forming a double-bear double-ear mounting structure.
[0061] Example 5
[0062] like Figure 7 or Figure 8 As shown, unlike Embodiment 2 above, in another embodiment, the second mounting structure 13 is a cylindrical clamping plate. The lower end of the cylindrical clamping plate is provided with a longitudinal notch, and the upper end of the thin plate 11 is clamped and fixed in the longitudinal notch. A plurality of mounting holes 15 are opened radially on the cylindrical clamping plate corresponding to the longitudinal notch.
[0063] In this embodiment, the cylindrical clamping plate and its mounting holes 15 allow the double rollers to be mounted on external equipment using conventional methods such as bolts. Meanwhile, the bearing 30 is a double bearing, and the two main rollers 20 can be rotated and mounted through the double bearing, thus forming a double bearing clamping mounting structure.
[0064] Example 6
[0065] like Figure 9 As shown, unlike Embodiment 5 above, in another embodiment, the second mounting structure 13 is a pin-type clamping plate, which is based on the structure of a cylindrical clamping plate and has an upwardly extending pin portion.
[0066] In this embodiment, the pin-type clamping plate and its mounting holes 15 allow the double rollers to be mounted on external equipment using conventional methods such as bolts. At the same time, the bearing 30 is a double bearing, and the two main rollers 20 can be rotated and mounted through the double bearing, thus forming a double bearing pin-type mounting structure.
[0067] Based on the structure of any of the above embodiments, in order to ensure the normal operation of the dual bearings and extend their service life, when the bearing 30 is a dual bearing, a limiting retaining ring 14 is also provided in the bearing housing 12, and the limiting retaining ring 14 is located between the dual bearings; preferably, a bearing spacer 16 is also provided in the limiting retaining ring 14.
[0068] Based on the structure of any of the above embodiments, the specific implementation of the first mounting structure 52 can adopt the following two methods:
[0069] like Figure 5 As shown, in one embodiment, the first mounting structure 52 is a U-shaped groove with the opening facing downward at the lower end of the inner side plate 51, and the gap filling wheel 40 is rotatably engaged in the U-shaped groove of the two inner side plates 51 through the spindle 41.
[0070] In this embodiment, the U-shaped groove not only allows for the rotatable mounting of the mandrel 41 so that the gap-filling wheel 40 can rotate with it, but also, with the opening of the U-shaped groove facing downwards, it can provide longitudinal positioning for the gap-filling wheel 40 during the rolling process. It should be noted that the length of the mandrel 41 is greater than the gap width between the two main rollers 20, so there will be no problem of it falling off. In addition, this structure of the first mounting structure 52 allows the inner bracket 50 to be directly fixedly mounted on the lower end of the thin plate 11, or it can be detachably mounted on the lower end of the thin plate 11 using screws or other fasteners.
[0071] like Figure 8 As shown, in another embodiment, the first mounting structure 52 is a through hole that extends from left to right through the lower end of the inner side plate 51, and the gap filling wheel 40 is rotatably inserted into the through holes of the two inner side plates 51 through the spindle 41.
[0072] In this embodiment, the structure of the first mounting structure 52 allows the inner bracket 50 to be detachably mounted on the lower end of the thin plate 11 using fasteners such as screws, thereby facilitating the installation, disassembly, maintenance, or replacement of the gap-filling wheel 40.
[0073] It should be noted that the shape of the wheel surface can also be adjusted to U-shape, V-shape, etc., according to actual use needs.
[0074] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.
Claims
1. A double-roller roller with a gap-filling wheel, comprising a thin support (10) and two main rollers (20), wherein the thin support (10) comprises a thin plate (11), and the two main rollers (20) are rotatably mounted on the left and right sides of the lower end of the thin plate (11) via bearings (30), characterized in that: It also includes a gap-filling wheel (40) and an inner support (50), the inner support (50) being mounted on the lower end of the thin plate (11), the gap-filling wheel (40) being rotatably mounted on the inner support (50) via a spindle (41), and the outer edge of the gap-filling wheel (40) extending into the gap between the outer edges of the two main rollers (20).
2. The double-wheel rolling roller with a gap-filling wheel according to claim 1, characterized in that: The inner support (50) includes two inner side plates (51), which are symmetrically installed on the left and right sides of the lower end of the thin plate (11). The lower ends of the two inner side plates (51) are provided with a first mounting structure (52) for rotating and installing the gap filling wheel (40).
3. The double-wheel rolling roller with a gap-filling wheel according to claim 2, characterized in that: The first mounting structure (52) is a U-shaped groove with the opening facing downwards at the lower end of the inner side plate (51). The gap filling wheel (40) is rotated and engaged in the U-shaped groove of the two inner side plates (51) through the spindle (41).
4. The double-wheel rolling roller with a gap-filling wheel according to claim 2, characterized in that: The first mounting structure (52) is a through hole that runs through the lower end of the inner side plate (51) from left to right. The gap filling wheel (40) is inserted into the through holes of the two inner side plates (51) through the spindle (41).
5. The double-wheel rolling roller with a gap-filling wheel according to claim 2, characterized in that: The thin support (10) also includes a bearing seat (12), which is fixedly inserted between the thin plate (11) and the two inner side plates (51).
6. The double-wheel rolling roller with a gap-filling wheel according to claim 1, characterized in that: The inner sides of both main rollers (20) are provided with outwardly arched concave surfaces (21), and the middle of the concave surfaces (21) is provided with a convex ring (22) for pressing the bearing (30).
7. The double-wheel rolling roller with a gap-filling wheel according to claim 1, characterized in that: The thin bracket (10) also includes a second mounting structure (13) for mounting the double rollers, the second mounting structure (13) being fixedly connected to the upper end of the thin plate (11).
8. The double-wheel rolling roller with a gap-filling wheel according to claim 7, characterized in that: The second mounting structure (13) is any one of the following: a straight base plate, a U-shaped double ear plate, a column clamping plate, and a pin-type clamping plate.
9. The double-wheel rolling roller with a gap-filling wheel according to claim 1, characterized in that: The thin plate (11) and the two main rollers (20) are detachably connected by a locking connector (60). The locking connector (60) includes a connecting rod (61) and a connector (62), both of which are T-shaped. The end of the connecting rod (61) is provided with an internal thread hole, and the end of the connector (62) is provided with an external thread that is threaded to the internal thread hole.
10. The double-wheel rolling roller with a gap-filling wheel according to claim 1, characterized in that: Both main rollers (20) have inwardly recessed grooves (23) on their outer surfaces.