Novel roll-bending inner cavity filling structure

Abstract

The utility model discloses a novel roll bending inner chamber filling structure relates to the field of roll -in technology, including device platform, the device platform upper surface is established with the mounting groove, the inboard of mounting groove is provided with filling assembly and pull assembly respectively, the filling assembly is including fixed base, the fixed base upper end fixedly connected with the filling groove, the filling groove lower surface fixedly connected with spring box and is provided with the through groove with spring box upper surface through -setting, the utility model discloses the filling assembly of setting, pull rod and draw a rope realize soft and hard link, thereby realize the matching of product and draw a rope, and the middle position of core mould increases a limit ring and product inner width surface effective flow contact, has reduced product and the cooperation clearance and contact area of filling, has effectively solved the problem of filling local deviation, has effectively improved the work efficiency of filling, has improved practicality.

Description

Technical Field

[0001] This utility model relates to the field of roller pressing technology, specifically a novel roller bending inner cavity filling structure. Background Technology

[0002] Roll bending, as a key final step in roll forming, enables the precise forming of complex three-dimensional curved surface products through coordinated operation with multiple roll forming processes. In actual production, to ensure the dimensional accuracy of closed profiles meets design requirements, when the product's radius of curvature is less than 3200mm, an internal cavity filling auxiliary process must be used for roll bending. This process requirement stems primarily from the uneven material flow during small curvature forming. Internal cavity support effectively controls cross-sectional deformation, ensuring the consistency of key quality characteristics such as profile contour, radius of curvature, and the positional accuracy of the positioning hole group.

[0003] The currently widely used internal cavity filling solution in the industry is a flexible rod structure composed of multiple planar metal modules connected by hinges. This traditional structure has revealed significant technical limitations in practical applications: due to the assembly gaps between the modules, the modules cannot achieve complete conformal fit during bending, resulting in an actual contact area with the inner wall of the profile exceeding 75%. This excessively large contact area can lead to a series of process defects: firstly, the increased frictional resistance can cause uneven material flow, significantly increasing the difficulty of process debugging; secondly, uneven force distribution can easily generate periodic wave defects on the profile surface; thirdly, unbalanced support force distribution can cause local deviations in the curvature of the profile; in addition, high friction conditions can also cause a certain amount of plastic deformation in the positioning holes, seriously affecting the assembly accuracy of the product.

[0004] Based on this, a novel roller bending inner cavity filling structure is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a novel roller bending inner cavity filling structure to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel roller bending inner cavity filling structure includes a device platform, on the upper surface of which is provided with an installation groove, and a filling component and a pulling component are respectively arranged inside the installation groove;

[0008] The filling assembly includes a fixed base with a filling groove at its upper end. A spring box is fixedly connected to the lower surface of the filling groove and has a through groove extending through the upper surface of the spring box. A return spring is fixedly connected to the lower surface of the spring box. A product connecting sleeve is slidably disposed inside the filling groove. A pull rope is hinged to one end of the product connecting sleeve. The lower end of the product connecting sleeve is fixedly connected to one end of the return spring. A limit ring is fixedly connected to the inner side of one end of the filling groove.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative embodiment: the pulling assembly includes a pulling base, which is fixedly connected to one side of the mounting groove. A gearbox is fixedly connected to one side of the upper end of the pulling base. A gear is provided on one side of the gearbox. A rotary motor is provided inside the pulling base. The output end of the rotary motor passes through the pulling base and one side of the gearbox and is fixedly connected to the middle of the gear. A sliding component is provided on one side of the gear.

[0011] In one alternative embodiment: the sliding assembly includes a flexible toothed belt disposed between the gear and the gearbox and meshing with the gear, and anti-detachment blocks are provided at both ends of the flexible toothed belt.

[0012] In one alternative: a limit block is provided in the middle of the gearbox.

[0013] In one alternative: one end of the flexible toothed belt is provided with a hinge seat and is hinged to an adjacent tie rod through the hinge seat.

[0014] In one alternative: one end of the pull rod is hinged to one end of the adjacent pull rope.

[0015] In one alternative: a control panel is fixedly connected to the upper end of the pull base.

[0016] In one alternative: the control panel is electrically connected to the pull assembly.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model achieves a soft and hard connection through a filling component, a pull rod, and a pull rope, thereby matching the product with the pull rope. The other end of the pull rope is connected to the product core mold. To ensure the product's dimensional accuracy, the module is derived from the product's internal cavity dimensions. At the same time, a limiting ring is added in the middle of the core mold to effectively flow and contact the product's inner surface, reducing the fit gap and contact area between the product and the filling, effectively solving the problem of local filling deviation, improving filling efficiency, and demonstrating strong practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the pull component structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the filling component structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the internal structure of the filling component of this utility model.

[0023] Figure reference numerals: 1. Device platform; 2. Mounting slot; 3. Pull-up base; 4. Control panel; 5. Rotary motor; 6. Gearbox; 7. Flexible toothed belt; 8. Gear; 9. Limiting block; 10. Pull rod; 11. Pull rope; 12. Fixing seat; 13. Filling slot; 14. Spring box; 15. Return spring; 16. Product connecting sleeve; 17. Limiting ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, such as Figures 1-4 As shown, a novel roller bending inner cavity filling structure includes a device platform 1, with an installation groove 2 on the upper surface of the device platform 1, and a filling component and a pulling component respectively arranged inside the installation groove 2.

[0026] The filling assembly includes a fixed base 12, with a filling groove 13 at the upper end of the fixed base 12. A spring box 14 is fixedly connected to the lower surface of the filling groove 13 and a through groove is provided through the upper surface of the spring box 14. A return spring 15 is fixedly connected to the lower surface inside the spring box 14. A product connecting sleeve 16 is slidably arranged inside the filling groove 13. A pull rope 11 is hinged to one end of the product connecting sleeve 16. The lower end of the product connecting sleeve 16 is fixedly connected to one end of the return spring 15. A limit ring 17 is fixedly connected to the inner side of one end of the filling groove 13.

[0027] In this embodiment, the roller is first placed on the filling groove 13, and then the product core mold is connected to one end of the product connecting sleeve 16. Then, the rotary motor 5 is started, driving the gear 8 to start rotating. Then, the flexible toothed belt 7 moves within the gearbox 6 and is limited. Then, the pull rod 10 is pulled, and the pull rod 10 drives the pull rope 11 to move towards the pull base 3. Then, the product core mold passes through the entire product interior to complete the filling. Then, the product is removed. Then, the rotary motor 5 reverses and sends the pull rod 10 out through the flexible toothed belt 7. At this time, the pull rope 11 loses tension, and the return spring 15 under the product connecting sleeve 16 will start to contract, bringing the product connecting sleeve 16 back to the initial section for the next processing.

[0028] In one embodiment, such as Figure 2 As shown, the pulling assembly includes a pulling base 3, which is fixedly connected to one side of the mounting groove 2. A gearbox 6 is fixedly connected to one side of the upper end of the pulling base 3. A gear 8 is provided on one side of the gearbox 6. A rotary motor 5 is provided inside the pulling base 3. The output end of the rotary motor 5 passes through the pulling base 3 and one side of the gearbox 6 and is fixedly connected to the middle of the gear 8. A sliding component is provided on one side of the gear 8. The rotary motor 5 drives the gear 8 to rotate, which in turn drives the flexible toothed belt 7 to move within the gearbox 6. Then, the pull rod 10 is pulled to move, and the pull rod 10 drives the pull rope 11 to move towards the pulling base 3. Finally, the product core mold passes through the entire interior of the product to complete the filling.

[0029] In one embodiment, such as Figure 2 As shown, the sliding component includes a flexible toothed belt 7, which is disposed between the gear 8 and the gearbox 6 and meshes with the gear 8. The flexible toothed belt 7 is made of polyurethane belt with embedded high-strength steel wire, and is simultaneously limited by the gearbox 6 and the limiting block 9 to mesh with the gear 8. Anti-detachment blocks are provided at both ends of the flexible toothed belt 7, and pulling is achieved through the flexible toothed belt 7.

[0030] In one embodiment, such as Figure 2 As shown, a limiting block 9 is provided in the middle of the gearbox 6 to limit the flexible toothed belt 7 and the pull rod 10.

[0031] In one embodiment, such as Figure 2 As shown, one end of the flexible toothed belt 7 is provided with a hinge seat and is hinged to the adjacent pull rod 10 through the hinge seat, providing some space for the displacement of the pull rod 10 and the pull rope 11.

[0032] In one embodiment, such as Figure 2 As shown, one end of the pull rod 10 is hinged to one end of the adjacent pull rope 11, providing a certain angle of rotation.

[0033] In one embodiment, such as Figure 1As shown, a control panel 4 is fixedly connected to the upper end of the pull base 3 to control the device.

[0034] In one embodiment, such as Figure 1 As shown, the control panel 4 is electrically connected to the pull assembly, and the pull assembly is controlled through the control panel 4.

[0035] The above embodiment discloses a novel roller bending inner cavity filling structure. In use, the roller is first placed on the filling groove 13, and then the product core mold is connected to one end of the product connecting sleeve 16. The rotary motor 5 is started, driving the gear 8 to start rotating. Then, the flexible toothed belt 7 moves within the gearbox 6 and is limited. Then, the pull rod 10 is pulled to move, and the pull rod 10 drives the pull rope 11 to move towards the pull base 3. Then, the product core mold is driven through the entire interior of the product to complete the filling. Then, the product is removed. Then, the rotary motor 5 reverses and sends the pull rod 10 out through the flexible toothed belt 7. At this time, the pull rope 11 loses tension, and the return spring 15 under the product connecting sleeve 16 will start to contract, bringing the product connecting sleeve 16 back to the initial section for the next processing.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A novel roller bending inner cavity filling structure, comprising a device platform (1), wherein an installation groove (2) is provided on the upper surface of the device platform (1), and a filling component and a pulling component are respectively provided inside the installation groove (2); Its features are, The filling assembly includes a fixed base (12), the fixed base (12) has a filling groove (13) at its upper end, a spring box (14) is fixedly connected to the lower surface of the filling groove (13) and a through groove is provided through the upper surface of the spring box (14), a return spring (15) is fixedly connected to the lower surface of the spring box (14), a product connecting sleeve (16) is slidably arranged inside the filling groove (13), a pull rope (11) is hinged to one end of the product connecting sleeve (16), the lower end of the product connecting sleeve (16) is fixedly connected to one end of the return spring (15), and a limit ring (17) is fixedly connected to the inner side of one end of the filling groove (13).

2. The novel roller bending inner cavity filling structure according to claim 1, characterized in that, The pulling assembly includes a pulling base (3), which is fixedly connected to one side of the mounting groove (2). A gearbox (6) is fixedly connected to one side of the upper end of the pulling base (3). A gear (8) is provided on one side of the gearbox (6). A rotary motor (5) is provided on the inner side of the pulling base (3). The output end of the rotary motor (5) passes through the pulling base (3) and one side of the gearbox (6) and is fixedly connected to the middle of the gear (8). A sliding assembly is provided on one side of the gear (8).

3. The novel roller bending inner cavity filling structure according to claim 2, characterized in that, The sliding component includes a flexible toothed belt (7), which is disposed between the gear (8) and the gearbox (6) and meshes with the gear (8). Anti-detachment blocks are provided at both ends of the flexible toothed belt (7).

4. The novel roller bending inner cavity filling structure according to claim 2, characterized in that, A limit block (9) is provided in the middle of the gearbox (6).

5. The novel roller bending inner cavity filling structure according to claim 3, characterized in that, The flexible toothed belt (7) has a hinge seat at one end and is hinged to the adjacent tie rod (10) through the hinge seat.

6. The novel roller bending inner cavity filling structure according to claim 5, characterized in that, One end of the pull rod (10) is hinged to one end of the adjacent pull rope (11).

7. The novel roller bending inner cavity filling structure according to claim 2, characterized in that, The upper end of the pull base (3) is fixedly connected to the control panel (4).

8. The novel roller bending inner cavity filling structure according to claim 7, characterized in that, The control panel (4) is electrically connected to the pull assembly.

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