Adjustable traceless bending die
By setting a thin film and positioning adjustment seat structure on the mold, the problem of friction scratches during mold bending is solved, the flexible installation and applicability of the mold seat are realized, and the bending quality and efficiency are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HONGSHITAI MASCH CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-19
AI Technical Summary
Existing bending dies are prone to causing friction scratches when bending metal parts, and the die base is fixed in position, lacking flexibility and difficult to adjust and replace.
The mold base surface is covered with a thin film, which is then bent without leaving a trace using a pressing device. The mold base is flexibly installed using a combination of positioning and adjusting seats, and the film is prevented from falling off using fixing components and elastic ropes.
It achieves a seamless bending effect, improves the flexibility and applicability of the mold, and is suitable for installation on mold bases of different sizes.
Smart Images

Figure CN224372566U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bending die technology, specifically an adjustable, seamless bending die. Background Technology
[0002] Bending dies are specialized tools used for precise bending and forming in the processing of sheet metal. They are usually installed on bending machines and use the cooperation of upper and lower dies to plastically deform the sheet metal to form a specific angle or shape.
[0003] For example, the Chinese authorized patent (a shell bending machine) with announcement number CN220072884U includes a support table, two sets of support plates, auxiliary components, and a bending assembly. The two sets of support plates are symmetrically installed on both sides of the top of the support table by bolts. This utility model, by providing auxiliary components and using baffles to limit the shell's position, aligns the desired bending location with the bending die. After positioning the shell, an electric suction cup is used to adhere and fix it. The downward pressure of the lower plate, in conjunction with the bending die, achieves the initial bending of the shell. After the initial bending, electric push rods at symmetrical positions at the bending point drive the electric suction cups to rise. At this point, the remaining electric suction cups no longer adhere to the shell, and the rising of the electric suction cups lifts the shell, achieving bending. A drive motor drives the processing plate to rotate, thereby rotating the shell and achieving sequential bending of the four sides of the shell, improving the bending efficiency.
[0004] However, existing bending dies can easily cause friction scratches on the surface of metal parts during bending due to hard friction, affecting the bending quality. Furthermore, the die base is fixed in position, making it inconvenient to adjust the position and change the size, resulting in poor flexibility. Therefore, they do not meet the current requirements. To address this, we propose an adjustable, scratch-free bending die. Utility Model Content
[0005] The purpose of this utility model is to provide an adjustable, scratch-free bending die to solve the problems mentioned in the background art, such as the existing bending dies causing friction scratches on the surface of metal parts due to hard friction, which affects the bending quality, and the fixed installation position of the die base, which makes it inconvenient to adjust the position and change the size, resulting in poor flexibility.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable, seamless bending mold, comprising: a base, a positioning seat at the upper end of the base, an adjusting seat on one side of the positioning seat, a mold base at the upper end of the adjusting seat, a thin film at the upper end of the mold base, fixing components on both sides of the thin film, and a mounting plate on one side of the fixing components, and the mounting plate is welded and fixed to the base.
[0007] Preferably, the fixing component includes a fixing clip, one end of which clamps and fixes the film, and the other end of the fixing clip has a connecting hole on its upper surface, with the connecting hole penetrating the fixing clip vertically.
[0008] Preferably, the fixing component further includes an elastic rope, which passes through the connecting hole. The other end of the elastic rope is provided with a rubber round seat, and the elastic rope is bonded and fixed to the rubber round seat by an external fixing adhesive.
[0009] Preferably, the front surface of the mounting plate near the top is provided with a round seat slot, and the round seat slot extends through the mounting plate, with the rubber round seat passing through the round seat slot.
[0010] Preferably, both ends of the positioning seat are provided with first bolts, and one end of the first bolt passes through the positioning seat and is threaded to the base. Both ends of the positioning seat are provided with bolt holes on one side surface.
[0011] Preferably, the side surfaces at both ends of the adjusting seat are provided with through holes, one end of the through hole is provided with a second bolt, and one end of the second bolt passes through the through hole and is threadedly connected to the bolt hole.
[0012] Preferably, the mold base includes a bending seat and a fixing seat, and the fixing seat is located at the lower end of the bending seat and is inserted into the gap between the positioning seat and the adjusting seat. The upper surface of the bending seat is provided with a bending groove.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) This utility model sets a thin film on the upper surface of the mold base and uses a pressing device to bend the workpiece along the bending groove. When bending, the thin film prevents the workpiece from being damaged by friction with the inner wall of the bending groove, thus achieving a scratch-free bending. When installing the mold base, the fixed seat is inserted into the gap between the positioning seat and the adjusting seat. The positioning seat and the adjusting seat are fixed by the second bolt. The fixed seat is squeezed and fixed instead of being fixed to the fixed seat by the second bolt. This makes it easy to adjust the distance between the positioning seat and the adjusting seat. It is suitable for fixing mold bases of different sizes. Compared with the existing positioning and adjusting seats, it improves flexibility and applicability. It solves the problem that when bending metal parts, the existing bending molds are prone to friction scratches on the surface of the metal parts due to hard friction, which affects the bending quality. In addition, the mold base installation position is fixed, which is inconvenient for position adjustment and size change, resulting in poor flexibility.
[0015] (2) The film and the mounting plate are connected by setting a fixing component. When connecting, the film is clamped and fixed on both sides by a fixing clip. The rubber round seat passes through the round seat slot. Relying on the deformation characteristics of the rubber, the diameter is larger than the round seat slot after passing through the round seat slot, thus achieving the effect of limiting and preventing it from falling. When bending, the film is pulled by the elastic rope, so that it can rebound to the initial position after bending and avoid falling. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram showing the disassembled structure of the mold base, positioning base, and adjustment base of this utility model;
[0018] Figure 3 This is a schematic diagram showing the disassembled structure of the positioning seat and the adjusting seat of this utility model;
[0019] Figure 4 This is a partial enlarged view of point A of this utility model;
[0020] In the diagram: 1. Base; 2. Positioning seat; 3. Adjusting seat; 4. Mold base; 5. First bolt; 6. Second bolt; 7. Mounting plate; 8. Film; 9. Fixing component; 10. Bending seat; 11. Fixing seat; 12. Bending groove; 13. Through hole; 14. Bolt hole; 15. Fixing clip; 16. Connecting hole; 17. Elastic rope; 18. Rubber round seat; 19. Round seat slot. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Please see Figure 1-4This utility model provides an embodiment of an adjustable, seamless bending mold, comprising: a base 1, a positioning seat 2 at the upper end of the base 1, an adjusting seat 3 on one side of the positioning seat 2, a mold base 4 at the upper end of the adjusting seat 3, a thin film 8 at the upper end of the mold base 4, fixing components 9 on both sides of the thin film 8, a mounting plate 7 on one side of the fixing component 9, and the mounting plate 7 is welded and fixed to the base 1. The fixing component 9 includes a fixing clamp 15, and one end of the fixing clamp 15 clamps the thin film 8. The fixing clamp 15 is fixed with a connecting hole 16 on the upper surface of the other end, and the connecting hole 16 passes through the fixing clamp 15 vertically. The fixing component 9 also includes an elastic rope 17, which passes through the connecting hole 16. The other end of the elastic rope 17 is provided with a rubber round seat 18, and the elastic rope 17 is bonded to the rubber round seat 18 by external fixing adhesive. The front surface of the mounting plate 7 near the top end is provided with a round seat slot 19, which passes through the mounting plate 7, and the rubber round seat 18 passes through the round seat slot 19.
[0023] The film 8 is clamped and fixed on both sides by the fixing clip 15, and the fixing clip 15 is connected to the mounting plate 7 by the elastic rope 17. When the elastic rope 17 is connected to the mounting plate 7, the rubber round seat 18 passes through the round seat slot 19. Relying on the deformation characteristics of the rubber, after passing through the round seat slot 19, the diameter is larger than the round seat slot 19, thereby achieving the effect of limiting and preventing it from falling. At this time, the film 8 is located on the upper surface of the bending seat 10. The workpiece to be bent is placed on the film 8. The pressing device is installed above the mold base 4. The workpiece is bent along the bending groove 12 by the pressing device. The film 8 is pulled by the force to pull the elastic rope 17, so that it can return to the initial position by the elastic rope 17 after bending to avoid falling. During bending, the film 8 prevents the workpiece from being damaged by friction with the inner wall of the bending groove 12, thus achieving a seamless bending.
[0024] like Figure 1 As shown, both ends of the positioning seat 2 are provided with first bolts 5, and one end of the first bolt 5 passes through the positioning seat 2 and is threadedly connected to the base 1. Bolt holes 14 are provided on one side surface of both ends of the positioning seat 2. Through holes 13 are provided on the side surfaces of both ends of the adjusting seat 3. A second bolt 6 is provided at one end of the through hole 13, and one end of the second bolt 6 passes through the through hole 13 and is threadedly connected to the bolt hole 14. The mold base 4 includes a bending seat 10 and a fixing seat 11, with the fixing seat 11 located at the lower end of the bending seat 10. The fixing seat 11 is inserted into the gap between the positioning seat 2 and the adjusting seat 3. The upper surface of the bending seat 10 is provided with a bending groove 12. The fixing seat 11 is inserted into the gap between the positioning seat 2 and the adjusting seat 3, and the lower surface of the bending seat 10 is supported by the positioning seat 2 and the adjusting seat 3. One end of the second bolt 6 passes through the through hole 13 and is threadedly connected to the bolt hole 14, thereby achieving the pressing and fixing of the fixing seat 11 by the adjusting seat 3, thus fixing the mold base 4. Figure 1 and Figure 2 As shown, by adjusting the distance between the positioning seat 2 and the adjusting seat 3, it is suitable for fixing mold bases 4 of different sizes, which improves flexibility and applicability compared to the existing positioning seat 2 and adjusting seat 3 that are fixed in position.
[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An adjustable traceless bending die comprising a base (1), characterized in that: The upper end of the base (1) is provided with a positioning seat (2), and an adjustment seat (3) is provided on one side of the positioning seat (2). The upper end of the adjustment seat (3) is provided with a mold seat (4), and the upper end of the mold seat (4) is provided with a thin film (8). Both sides of the thin film (8) are provided with fixing components (9). One side of the fixing component (9) is provided with a mounting plate (7), and the mounting plate (7) is welded and fixed to the base (1).
2. The adjustable traceless bending die of claim 1, wherein: The fixing component (9) includes a fixing clip (15), and one end of the fixing clip (15) clamps and fixes the film (8). The other end of the fixing clip (15) has a connecting hole (16) on its upper surface, and the connecting hole (16) passes through the fixing clip (15) from top to bottom.
3. The adjustable traceless bending die of claim 2, wherein: The fixing component (9) also includes an elastic rope (17), which passes through the connecting hole (16). The other end of the elastic rope (17) is provided with a rubber seat (18), and the elastic rope (17) is bonded and fixed to the rubber seat (18) by external fixing adhesive.
4. The adjustable traceless bending die of claim 3, wherein: The mounting plate (7) has a round seat slot (19) on its front surface near the top, and the round seat slot (19) passes through the mounting plate (7), and the rubber round seat (18) passes through the round seat slot (19).
5. The adjustable traceless bending die of claim 1, wherein: Both ends of the positioning seat (2) are provided with first bolts (5), and one end of the first bolt (5) passes through the positioning seat (2) and is threadedly connected to the base (1). Both ends of the positioning seat (2) are provided with bolt holes (14) on one side surface.
6. An adjustable traceless bending die according to claim 5, wherein: The side surfaces at both ends of the adjusting seat (3) are provided with through holes (13). A second bolt (6) is provided at one end of the through hole (13), and one end of the second bolt (6) passes through the through hole (13) and is threadedly connected to the bolt hole (14).
7. The adjustable traceless bending die of claim 1, wherein: The mold base (4) includes a bending base (10) and a fixing base (11), and the fixing base (11) is located at the lower end of the bending base (10), and the fixing base (11) is inserted into the gap between the positioning base (2) and the adjusting base (3). The upper surface of the bending base (10) is provided with a bending groove (12).
Citation Information
Patent Citations
Shell bending machine
CN220072884U