An adjustable draw bead structure
Patent Information
- Application Number
- CN202522267121.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-27
AI Technical Summary
[0002]在拉延模中，拉延筋是冲压成型工艺中的重要结构，用于控制材料的流动，防止产品成型的过程中出现起皱和开裂，通常情况下，拉延筋都是与上模具或者下模具做成一体，需要调节拉延筋的高度时，都是通过焊补或者打磨来修正材料的流动问题，但是，通过焊补或者打磨来调整拉延筋所需的时间过长，且焊补后的拉延筋容易出现裂纹，影响产品的成型，当拉延筋损坏后，需要更换整个模具，增加模具的成本以及所需的时间
[0009]本实用新型的有益效果：将拉延筋与上模具分开设置，便于拉延筋条的更换，且在对拉延筋条的高度进行调整时，更加方便，无需更换整个上模具，节约时间，节省材料，且将拉延筋条拆分为多个拉延筋，在对拉延筋的高度进行调整时。仅需对单个拉延筋进行调整即可，调节更加方便快捷，拉延筋条分段设置在上模具上，避免拉延筋条在加工时出现断裂。
Smart Images
Figure CN224824203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of stamping forming process, and in particular to an adjustable drawing rib structure. Background Technology
[0002] In drawing dies, draw beads are an important structure in the stamping process, used to control material flow and prevent wrinkling and cracking during product forming. Usually, draw beads are integrated with the upper or lower die. When the height of the draw bead needs to be adjusted, the material flow problem is corrected by welding or grinding. However, adjusting the draw bead by welding or grinding takes too long, and the welded draw bead is prone to cracking, affecting the product forming. When the draw bead is damaged, the entire die needs to be replaced, increasing the cost of the die and the time required. Utility Model Content
[0003] The present invention aims to provide an adjustable drawbead structure, which can adjust the height of the drawbead to meet the needs of different forming positions, optimize material flow, and when the drawbead is damaged, only the shim and a single section of the drawbead need to be replaced, saving time and cost.
[0004] Therefore, the technical solution adopted by this utility model is as follows: an adjustable drawing bead structure, including an upper mold and a lower mold, wherein the upper mold is provided with a mounting groove for mounting the drawing bead, the drawing bead is composed of multiple drawing beads, the drawing bead is disposed between the upper mold cavity and the lower mold pressure ring, and the multiple drawing beads are respectively provided with corresponding lugs for fixing to the upper mold, and the mounting groove is provided with a shim for adjusting the height of the drawing bead.
[0005] As a preferred embodiment of the above scheme, the length of the drawbead is less than 150mm and the height is greater than 20mm.
[0006] More preferably, the gasket has the same shape as the drawbead and the lug, and the gasket has multiple thicknesses.
[0007] More preferably, the height of the support ear is aligned with the bottom surface of the upper mold, or the support ear is completely inside the upper mold.
[0008] More preferably, the support lug is connected to the upper mold by bolts or pins.
[0009] The beneficial effects of this utility model are as follows: Separating the drawbead from the upper die facilitates the replacement of the drawbead strips and makes adjusting the height of the drawbead strips more convenient, eliminating the need to replace the entire upper die, thus saving time and materials. Furthermore, by dividing the drawbead strips into multiple sections, only individual drawbeads need to be adjusted when changing their height, making adjustment more convenient and faster. The segmented arrangement of the drawbead strips on the upper die also prevents breakage during processing. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a side view of the present invention. Detailed Implementation
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] like Figures 1-2 As shown, an adjustable drawbead structure includes an upper die 1 and a lower die (not shown). The upper die 1 is provided with a mounting groove 2 for mounting drawbeads 3. The drawbeads 3 are composed of multiple drawbead segments, with a length less than 150 mm and a height greater than 20 mm, facilitating the processing of the drawbeads. By dividing the drawbeads 3 into multiple drawbead segments, the height of the drawbeads can be adjusted segment by segment to meet the needs of different forming positions, optimize material flow, and prevent the drawbeads 3 from breaking during processing, thus affecting processing efficiency.
[0014] The drawbeads 3 are positioned between the upper die 1 and the lower die's blank holder. Multiple drawbeads are each equipped with corresponding lugs 4 for fixing to the upper die 1. A shim 5 is provided in the mounting groove 2 for adjusting the height of the drawbeads. The shim 5 has the same shape as the drawbeads and lugs 4, and comes in various thicknesses. Adjusting the height of the drawbeads 3 can be achieved by adding shims 5 of different thicknesses, making adjustment quicker and more convenient. If the thickness of the shim 5 is insufficient, it can be quickly processed to meet the required thickness.
[0015] The height of the support lug 4 is aligned with the bottom surface of the upper mold 1, or the support lug 4 is completely inside the upper mold 1. The support lug 4 is connected to the upper mold 1 by bolts or pins. Each section of the drawbead is connected to the upper mold 1 by a support lug 4, which makes the assembly and disassembly of the drawbead more convenient and ensures the stability of the drawbead connection. The height of the support lug 4 is aligned with the upper mold 1, or it is completely inside the upper mold 1, to avoid the support lug 4 affecting the direction of the material.
[0016] By separating the drawbeads from the upper die 1, the replacement of the drawbead strips 3 is facilitated. Adjusting the height of the drawbead strips 3 is also more convenient, eliminating the need to replace the entire upper die 1, saving time and materials. Furthermore, by dividing the drawbead strips 3 into multiple drawbeads, only individual drawbeads need to be adjusted when changing their height, making adjustment more convenient and faster. The segmented placement of the drawbead strips 3 on the upper die 1 also prevents breakage during processing.
[0017] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. An adjustable drawing bead structure, comprising an upper die (1) and a lower die, characterized in that: The upper mold (1) is provided with an installation groove (2) for installing the drawing bead strip (3). The drawing bead strip (3) is composed of multiple drawing beads. The drawing bead strip (3) is located between the upper mold (1) cavity and the lower mold pressing ring. Each of the multiple drawing beads is provided with a support lug (4) for fixing to the upper mold (1). The installation groove (2) is provided with a shim (5) for adjusting the height of the drawing bead.
2. The adjustable drawing rib (3) structure according to claim 1, characterized in that: The length of the drawbead is less than 150 mm and the height is greater than 20 mm.
3. The adjustable drawing rib (3) structure according to claim 1, characterized in that: The shape of the gasket (5) is the same as that of the drawbeam and the lug (4), and the gasket (5) is provided with various thicknesses.
4. The adjustable drawing rib (3) structure according to claim 1, characterized in that: The height of the support ear (4) is aligned with the bottom surface of the upper mold (1), or the support ear (4) is completely inside the upper mold (1).
5. The adjustable drawing rib (3) structure according to claim 4, characterized in that: The lug (4) is connected to the upper mold (1) by bolts or pins.