Ribbing and demolding device
Patent Information
- Application Number
- CN202522386641.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-11
AI Technical Summary
[0003]首先,工件定位精度难以保证,传统模具多依赖操作工人的经验手动放置工件,缺乏有效的限位与导向机制,导致工件在模腔内的初始位置存在偏差,合模时,上下模的对位主要依靠大型固定导柱,一旦出现微小的错位,则需拆卸模具进行修磨调整,过程繁琐,调机时间长,对操作人员技能要求高
[0012] This utility model is further configured with a second fastening screw and a pressure fine-tuning screw respectively on the pressure block. The second fastening screw passes through the pressure block and is releasably connected to the upper mold base. The pressure fine-tuning screw acts between the pressure block and the upper mold base for position adjustment. By ensuring that the pressure block contacts the product placed in the lower mold before the upper pressure rib cutter during the downward movement of the upper mold, and by precisely controlling its height with the pressure fine-tuning screw, it is possible to ensure that the pressure block applies appropriate and uniform pre-pressure to the product, stably pressing the product onto the positioning surface of the lower mold. This effectively prevents the product from shifting or even jumping up due to vibration or inertia at the moment of mold closing.
Smart Images

Figure CN224824255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal material processing technology, and in particular to a rib release device. Background Technology
[0002] In the processing and manufacturing of cylindrical workpieces such as metal pipes and shafts, it is often necessary to perform local forming processes such as ribs and embossing on their surfaces to serve purposes such as anti-slip, positioning, or structural reinforcement. Currently, the rib-making dies commonly used in the industry are mostly simple opening and closing mold structures, which have revealed many problems that need to be solved in actual production.
[0003] First, the positioning accuracy of the workpiece is difficult to guarantee. Traditional molds rely on the experience of operators to manually place the workpiece, lacking an effective limiting and guiding mechanism, which leads to deviations in the initial position of the workpiece in the mold cavity. When the mold is closed, the alignment of the upper and lower molds mainly relies on large fixed guide pillars. Once a slight misalignment occurs, the mold needs to be disassembled for grinding and adjustment, which is a cumbersome process, takes a long time to adjust the machine, and requires high skills from the operators.
[0004] Secondly, demolding is difficult and can easily damage the product. After the ribs are formed, due to the elastic recovery and interlocking effect of the material, the workpiece is often tightly stuck in the mold cavity. Existing technology usually uses manual prying to demold, which is not only inefficient, but also very easy to leave permanent damage such as scratches and indentations on the product surface, and may even lead to workpiece deformation and scrapping, which seriously affects the appearance quality and dimensional accuracy of the product.
[0005] In addition, at the moment of mold closing, the workpiece may be displaced or jump up due to vibration or inertia, resulting in inaccurate rib position or uneven forming depth. Existing molds lack an effective pre-clamping mechanism, which cannot stably hold the workpiece before the rib tool contacts it, affecting the processing stability and consistency. Utility Model Content
[0006] In view of this, the purpose of this utility model is to provide a rib demolding device that is accurate in positioning, can be quickly demolded, and can effectively prevent product damage.
[0007] To achieve the above objectives, this utility model employs a ribbed demolding device, comprising an upper mold assembly and a lower mold assembly corresponding to the upper mold assembly. The upper mold assembly includes an upper mold base, an upper ribbed cutter fixed to the upper mold base, and an upper demolding module slidably embedded in the upper ribbed cutter. An upper elastic element is provided between the upper demolding module and the upper mold base. The lower mold assembly includes a lower mold base, a lower ribbed cutter fixed to the lower mold base, and a lower demolding module slidably embedded in the lower ribbed cutter. A lower elastic element is provided between the lower demolding module and the lower mold base. The lower mold base is provided with at least two positioning guide posts. The upper mold base is provided with guide holes adapted to the positioning guide posts. Fine-tuning screws are provided on the sides of the upper and lower mold bases for adjusting mold closing alignment. Material release limit blocks are adjustablely installed at both ends of the lower mold base, and adjustable material pressing blocks are installed at both ends of the upper mold base corresponding to the material release limit blocks.
[0008] The beneficial effects of the above structure are as follows: the coordinated operation of the material feeding limit block, positioning guide post and guide hole ensures the accurate positioning of the product to be processed during the placement and mold closing process, effectively eliminating manual placement errors. Furthermore, by utilizing the upper and lower elastic elements to store and release energy, the demolding module can be smoothly and quickly ejected after the pressing ribs are completed, achieving forced demolding. This method effectively avoids the scratches and deformation of the product surface that may be caused by traditional manual prying, and prevents the product from getting stuck in the mold. In addition, the fine adjustment screws set on the side of the mold base can realize the fine adjustment of the alignment of the upper and lower molds. This eliminates the tedious process of traditionally requiring mold disassembly for correction, significantly reducing the machine setup time and technical threshold.
[0009] This invention is further configured with semi-circular grooves at the bottom of the upper demolding module and the top of the lower demolding module, which together form a circular cavity to accommodate and position the product to be processed when the mold is closed. The circular cavity can immediately enclose the product and automatically guide it to the center of the mold upon mold closing, fundamentally eliminating axial rotation and radial movement that may occur during the rib-forming process, thus ensuring the accuracy of the rib-forming position.
[0010] This utility model is further configured such that both the upper and lower elastic elements are compression springs. The compression springs provide a stable, continuous, and predictable elastic force, ensuring that the demolding module has sufficient and consistent ejection force at the moment of demolding.
[0011] This utility model is further configured with a first fastening screw and a feeding fine-tuning screw respectively on the feeding limit stop. The first fastening screw passes through the feeding limit stop and is releasably connected to the lower die base. The feeding fine-tuning screw acts between the feeding limit stop and the lower die base for position adjustment. The first fastening screw enables quick coarse adjustment and reliable locking of the stop, while the feeding fine-tuning screw is specifically used for precise, small-range final positioning.
[0012] This utility model is further configured with a second fastening screw and a pressure fine-tuning screw respectively on the pressure block. The second fastening screw passes through the pressure block and is releasably connected to the upper mold base. The pressure fine-tuning screw acts between the pressure block and the upper mold base for position adjustment. By ensuring that the pressure block contacts the product placed in the lower mold before the upper pressure rib cutter during the downward movement of the upper mold, and by precisely controlling its height with the pressure fine-tuning screw, it is possible to ensure that the pressure block applies appropriate and uniform pre-pressure to the product, stably pressing the product onto the positioning surface of the lower mold. This effectively prevents the product from shifting or even jumping up due to vibration or inertia at the moment of mold closing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0014] Figure 2 This is a schematic diagram of the upper mold component structure according to an embodiment of the present invention.
[0015] Figure 3 This is a schematic diagram of the upper mold assembly from another angle according to an embodiment of the present invention.
[0016] Figure 4 This is a schematic diagram of the lower mold assembly structure according to an embodiment of the present invention.
[0017] Figure 5 This is a schematic diagram of the lower mold assembly from another angle according to an embodiment of the present invention. Detailed Implementation
[0018] like Figures 1-5 As shown, an embodiment of the present invention provides a rib demolding device, including an upper mold assembly 1 and a lower mold assembly 2 corresponding to the upper mold assembly 1. The upper mold assembly 1 includes an upper mold base 11, an upper rib cutting tool 12 fixed to the upper mold base 11, and an upper demolding module 13 slidably embedded in the upper rib cutting tool 12. An upper elastic element 14 is provided between the upper demolding module 13 and the upper mold base 11.
[0019] The lower mold assembly 2 includes a lower mold base 21, a lower pressing rib cutter 22 fixed to the lower mold base 21, and a lower demolding module 23 slidably embedded in the lower pressing rib cutter 22. A lower elastic element 24 is provided between the lower demolding module 23 and the lower mold base 21. Both the upper elastic element 14 and the lower elastic element 24 are compression springs.
[0020] The lower mold base is provided with two positioning guide pillars 3, and the upper mold base 11 is provided with guide holes 31 that are adapted to the positioning guide pillars 3. The sides of the upper mold base 11 and the lower mold base 21 are provided with fine-tuning screws 4 for adjusting the mold closing alignment.
[0021] The lower mold base 21 is equipped with adjustable material feeding limit blocks 5 at both ends, and the upper mold base 11 is equipped with adjustable material pressing blocks 6 at both ends corresponding to the material feeding limit blocks 5.
[0022] The bottom of the upper demolding module 13 and the top of the lower demolding module 23 are respectively provided with semi-circular grooves 7, which together form a circular cavity to accommodate and position the product to be processed when the mold is closed.
[0023] The feeding limit block 5 is provided with a first fastening screw 51 and a feeding fine adjustment screw 52. The first fastening screw 51 passes through the feeding limit block 5 and is releasably connected to the lower mold base 21. The feeding fine adjustment screw 52 acts between the feeding limit block 5 and the lower mold base 21 to adjust the position.
[0024] The pressure block 6 is provided with a second fastening screw 61 and a pressure fine-tuning screw 62. The second fastening screw 61 passes through the pressure block 6 and is releasably connected to the upper mold base 11. The pressure fine-tuning screw 62 acts between the pressure block 6 and the upper mold base 11 to adjust the position.
[0025] Of course, in addition to the above embodiments, this utility model may have other various embodiments. Without departing from the essential technical solution of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, and these changes or modifications are equivalent to the technical solution in this patent. Therefore, these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model, and the utility model creation is in line with the applicant's actual R&D capabilities and resource conditions.
Claims
1. A demolding device for reinforcing ribs, characterized in that: The system includes an upper mold assembly and a lower mold assembly corresponding to the upper mold assembly. The upper mold assembly includes an upper mold base, an upper rib cutter fixed to the upper mold base, and an upper demolding module slidably embedded in the upper rib cutter. An upper elastic element is provided between the upper demolding module and the upper mold base. The lower mold assembly includes a lower mold base, a lower rib cutter fixed to the lower mold base, and a lower demolding module slidably embedded in the lower rib cutter. A lower elastic element is provided between the lower demolding module and the lower mold base. The lower mold base is provided with at least two positioning guide posts. The upper mold base is provided with guide holes adapted to the positioning guide posts. Fine-tuning screws are provided on the sides of the upper and lower mold bases for adjusting the mold closing alignment. Material release limit blocks are adjustablely installed at both ends of the lower mold base, and adjustable material pressing blocks are installed at both ends of the upper mold base corresponding to the material release limit blocks.
2. The demolding device for pressing ribs according to claim 1, characterized in that: The bottom of the upper demolding module and the top of the lower demolding module are respectively provided with semi-circular grooves, which together form a circular cavity to accommodate and position the product to be processed when the mold is closed.
3. The demolding device for reinforcing ribs according to claim 1, characterized in that: Both the upper and lower elastic elements are compression springs.
4. The demolding device for pressing ribs according to claim 1, characterized in that: The feeding limit block is provided with a first fastening screw and a feeding fine-tuning screw. The first fastening screw passes through the feeding limit block and is releasably connected to the lower mold base. The feeding fine-tuning screw acts between the feeding limit block and the lower mold base to adjust the position.
5. The demolding device for pressing ribs according to claim 1, characterized in that: The pressure block is provided with a second fastening screw and a pressure fine-tuning screw. The second fastening screw passes through the pressure block and is releasably connected to the upper mold base. The pressure fine-tuning screw acts between the pressure block and the upper mold base to adjust the position.