In-mold assisted force structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-04
- Publication Date
- 2026-08-11
AI Technical Summary
[0004]为解决现有的模具考虑到产品脱料问题，往往设计成连续模，先压凸台再落料，有送料误差，但这样工艺路线产品凸台尺寸稳定性不好，波动比较大，从而影响产品质量的技术问题，本实用新型提供一种模具内辅助力结构
本实用新型在使用时，机台油管接入油管接头，在模具生产过程中，机床设置好供油时间及力等参数，液压油通过油管接头流经油路块，再进入内腔内，给油缸杆提供作用力，向上运动，再带动下传力杆、第二下顶杆、第一下顶杆向上运动，最后顶起产品使其脱离模具型腔，通过在模具内设计辅助力结构，可在产品完全成型后，顺利把产品顶出，脱离模具，这种模具结构既能保证产品尺寸精度、稳定性，又能保证产品顺利生产，从而达到高效高质量生产的效果。
Smart Images
Figure CN224614972U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically to an auxiliary force structure inside a mold. Background Technology
[0002] When stamping products with bosses, conventional dies face significant technological challenges due to the lack of auxiliary force structures. To address the issue of material stripping, the industry commonly employs a progressive die process – first forming the boss through stamping, and then performing blanking. While this process avoids the risk of poor material stripping, the accumulation of errors in the feeding process can significantly impact product quality. Even with automated feeding equipment, it is difficult to completely eliminate material positioning deviations during the feeding process of progressive dies. The material may experience slight positional shifts due to its own elastic deformation, fluctuations in the gap of the feeding mechanism, or uneven friction during transport. These shifts may be negligible in a single feeding, but they will gradually accumulate in the multi-stage continuous processing of "pressing the boss - unloading". If the actual position of the material deviates from the preset reference during subsequent unloading, the relative position of the unloading cutting edge and the boss will deviate, directly causing fluctuations in the final forming size of the boss.
[0003] To address the aforementioned problems, we propose an internal auxiliary force structure for the mold. Utility Model Content
[0004] To address the issue of product unloading in existing molds, which are often designed as progressive dies, where the boss is pressed first and then the material is unloaded, there is a feeding error. However, this process route results in poor stability of the product boss dimensions, with large fluctuations, which affects product quality. This utility model provides an auxiliary force structure inside the mold.
[0005] This utility model is achieved using the following technical solution: an auxiliary force structure inside a mold, comprising a product and a mold, wherein one end of the mold is fixedly connected to an oil passage block, one end of the oil passage block is fixedly connected to an oil pipe connector, the mold has an inner cavity, an oil cylinder rod is movably connected inside the inner cavity, a lower force transmission rod is fixedly connected to the top of the oil cylinder rod, a second lower push rod is fixedly connected to the top of the lower force transmission rod, and a first lower push rod is fixedly connected to the top of the second lower push rod.
[0006] Preferably, the product is located at the top of the mold, and the top of the first lower ejector rod is in contact with the bottom of the mold.
[0007] Preferably, the lower force transmission rod is movably connected inside the mold.
[0008] Preferably, the second lower ejector rod is movably connected inside the mold, and the first lower ejector rod is movably connected inside the mold.
[0009] Compared with the prior art, the beneficial effects of this utility model are: In use, the machine tool's oil pipe is connected to the oil pipe connector. During the mold production process, the machine tool is set with parameters such as oil supply time and force. The hydraulic oil flows through the oil pipe connector, passes through the oil passage block, and then enters the inner cavity, providing force to the cylinder rod, causing it to move upward. This, in turn, drives the lower transmission rod, the second lower ejector rod, and the first lower ejector rod to move upward, finally lifting the product and causing it to detach from the mold cavity. By designing an auxiliary force structure within the mold, the product can be smoothly ejected and detached from the mold after it is fully formed. This mold structure can ensure product dimensional accuracy and stability, as well as smooth product production, thereby achieving efficient and high-quality production. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the mold of this utility model.
[0011] In the diagram: 1. Product; 2. Mold; 3. First lower ejector pin; 4. Second lower ejector pin; 5. Lower force transmission rod; 6. Cylinder rod; 7. Inner cavity; 8. Oil passage block; 9. Oil pipe connector. Detailed Implementation
[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0013] Example 1: Please refer to Figure 1 - Figure 2 This embodiment of an auxiliary force structure in a mold includes a product 1 and a mold 2. One end of the mold 2 is fixedly connected to an oil passage block 8, and one end of the oil passage block 8 is fixedly connected to an oil pipe connector 9. The mold 2 has an inner cavity 7, and an oil cylinder rod 6 is movably connected inside the inner cavity 7. The top of the oil cylinder rod 6 is fixedly connected to a lower force transmission rod 5, the top of the lower force transmission rod 5 is fixedly connected to a second lower push rod 4, and the top of the second lower push rod 4 is fixedly connected to a first lower push rod 3. The product 1 is located at the top of the mold 2, and the top of the first lower push rod 3 is in contact with the bottom of the mold 2. In this system, the machine tool connects the oil pipe to the oil pipe connector 9. During the production process of mold 2, the machine tool sets parameters such as oil supply time and force. The hydraulic oil flows through the oil pipe connector 9, passes through the oil circuit block 8, and then enters the interior of the inner cavity 7, providing force to the cylinder rod 6, causing the cylinder rod 6 to move upward. The cylinder rod 6 will drive the lower force transmission rod 5 to move upward, and the lower force transmission rod 5 will drive the second lower ejector rod 4 and the first lower ejector rod 3 to move upward, finally lifting the product 1 so that it leaves the mold cavity 2. This mold structure can ensure the product's dimensional accuracy and stability, and also ensure that the product leaves the mold smoothly without affecting production, thereby achieving the effect of efficient and high-quality production. Furthermore, the lower force transmission rod 5 is movably connected to the inside of the mold 2, the second lower ejector rod 4 is movably connected to the inside of the mold 2, and the first lower ejector rod 3 is movably connected to the inside of the mold 2; the hydraulic cylinder rod 6 will drive the lower force transmission rod 5 to move upward, and the lower force transmission rod 5 will drive the second lower ejector rod 4 and the first lower ejector rod 3 to move upward along the inside of the mold 2. By designing an auxiliary force structure within the mold, the mold structure can be designed as a composite mold when stamping products with bosses. This allows for one-time boss forming and blanking, eliminating the feeding errors inherent in continuous molds and greatly ensuring the accuracy and stability of the boss's position and dimensions. Furthermore, by designing an auxiliary force structure within the mold, the product can be smoothly ejected and removed from the mold after it has been fully formed. This mold structure not only ensures the product's dimensional accuracy and stability but also guarantees smooth production, thereby achieving efficient and high-quality production. Working principle: The machine tool's oil pipe is connected to the oil pipe connector 9. During the production process of mold 2, the machine tool is set with parameters such as oil supply time and force. The hydraulic oil flows through the oil pipe connector 9, through the oil circuit block 8, and then into the inner cavity 7, providing force to the cylinder rod 6, causing it to move upward. This, in turn, drives the lower transmission rod 5, the second lower ejector rod 4, and the first lower ejector rod 3 to move upward, finally lifting the product 1 so that it is removed from the mold cavity 2. By designing an auxiliary force structure inside the mold, the product can be smoothly ejected and removed from the mold after it is fully formed. This mold structure can ensure the product's dimensional accuracy and stability, as well as ensure smooth production, thereby achieving efficient and high-quality production.
[0014] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. An auxiliary force structure within a mold, comprising a product (1) and a mold (2), characterized in that, One end of the mold (2) is fixedly connected to an oil passage block (8), and one end of the oil passage block (8) is fixedly connected to an oil pipe connector (9). The mold (2) has an inner cavity (7), and the inner cavity (7) is movably connected to a cylinder rod (6). The top of the cylinder rod (6) is fixedly connected to a lower force transmission rod (5), the top of the lower force transmission rod (5) is fixedly connected to a second lower push rod (4), and the top of the second lower push rod (4) is fixedly connected to a first lower push rod (3).
2. The auxiliary force structure inside the mold according to claim 1, characterized in that, The product (1) is located on top of the mold (2), and the top of the first lower push rod (3) is connected to the bottom of the mold (2).
3. The auxiliary force structure inside the mold according to claim 1, characterized in that, The lower force transmission rod (5) is movably connected inside the mold (2).
4. The auxiliary force structure inside the mold according to claim 1, characterized in that, The second lower ejector rod (4) is movably connected inside the mold (2), and the first lower ejector rod (3) is movably connected inside the mold (2).