Split type part for preparing NOL ring
Through the combination of split parts design and inwa alloy mold disc, the problems of complex structure and difficult demolding of the NOL ring mold are solved, and efficient and low-cost NOL ring preparation is achieved.
Patent Information
- Application Number
- CN202422399782.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing NOL ring tool mold has complex structure and difficult demolding, resulting in large damage after demolding, poor stability of test data, cumbersome assembly, low efficiency and high cost.
The split part design includes mounting rod body, hollow ring, limit outer ring and four equal-segment sector mold discs. Through the combination of limit outer ring and hollow ring, the mold is simplified assembled and easy to release, and the sector mold disc made of inwa alloy is used to maintain high precision.
It realizes simple mold release of the NOL ring, reduces damage, improves preparation efficiency and data stability, reduces mold cost, and is easy to assemble and disassemble.
Smart Images
Figure CN223187050U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a mold, in particular to a split part for preparing a NOL ring. Background Art
[0002] The main technical problems of existing tooling molds for rings (including NOL rings) or cylinders are as follows: 1. The tooling mold has a complex structure and is time-consuming to assemble; 2. After the annular winding space is formed and solidified, demolding is difficult. After demolding, the ring (including NOL rings) or cylinder is severely damaged, and the test data stability is poor. For a batch of samples, the test data has a high dispersion, resulting in failure of formula screening; the reasons for the problem are: first, the convenience of demolding is not fully considered, and the designed mold is not convenient for demolding; second, the mold structure is complex, and the convenience of mold processing, assembly and disassembly, as well as the standardization of parts and the use of standard parts are not fully considered, resulting in cumbersome assembly, many components, poor preparation efficiency and high mold cost. Utility Model Content
[0003] The utility model aims to solve the technical problem of providing a split part for preparing an NOL ring, which is convenient for demoulding after the NOL ring is formed and is not prone to damage to the NOL ring after demoulding.
[0004] In order to solve the above technical problems, the technical solution of the split parts for NOL ring preparation in the present invention is:
[0005] It includes a mounting rod, a hollow circular ring, a limiting outer ring and a winding mold; the winding mold is composed of four equally divided fan-shaped mold discs; the four fan-shaped mold discs form a circular ring; the limiting outer ring and the winding mold are alternately and detachably mounted on the mounting rod, and are limited by the limiting outer ring.
[0006] The mounting rod body is connected to a limiting ring that is integrated with the rod body; a positioning block is connected to the side of the limiting ring; among the hollow circular rings, the hollow circular ring that is in contact with the limiting ring is provided with a positioning groove corresponding to the positioning block, and the hollow circular ring is inserted into the positioning block through its own positioning groove; the hollow circular ring is also provided with four mounting holes corresponding to the four sector-shaped mold disks respectively; the hollow circular ring is connected to the four sector-shaped mold disks respectively through the four mounting holes by bolts.
[0007] The winding mold and the hollow circular ring are limited between the limiting outer ring and the limiting ring ring; a locking bolt is threadedly connected to the limiting outer ring; the bottom end of the locking bolt passes through the limiting outer ring and rests on the outer side wall of the mounting rod.
[0008] The sector-shaped mold disc is made of Invar alloy.
[0009] The sector die plate is provided with a hollow trapezoidal through-hole; the hollow ring is provided with a hollow magazine-shaped through-hole.
[0010] The technical effects that can be achieved by the present utility model are as follows: In the split-type part for preparing the NOL ring of the present utility model, the winding die is designed as a sector die plate divided into four equal parts, and the four sector die plates form a ring. After the NOL ring is formed on the four sector die plates, the NOL ring is removed by disassembling the four sector die plates. This removal method is not easy to damage the NOL ring, and there is no need for an ejection mechanism, which is convenient for demolding. The present utility model only uses two parts, namely a hollow ring and a sector die plate, to form a cavity for the NOL ring, which has the characteristics of simple assembly, easy demolding, and convenient processing. Moreover, the sector die plate of the present utility model is made of invar alloy, which has a very low coefficient of thermal expansion. Within the temperature range of -45 - 250 °C, its size is not affected by temperature and can maintain extremely high structural precision, providing an accurate cavity for the preparation of the NOL ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The following further elaborates on the present utility model in conjunction with the drawings and specific embodiments:
[0012] Figure 1 is an exploded view of the split-type part for preparing the NOL ring of the present utility model;
[0013] Figure 2 is a hollow ring with a positioning groove;
[0014] Figure 3 is a schematic structural view of the sector die plate;
[0015] Figure 4 is a schematic structural view when the four sector die plates form a ring;
[0016] Figure 5 is a connection schematic view of the limiting outer ring;
[0017] Figure 6 is Figure 5 is an enlarged view of part A of
[0018] Figure 7 is a schematic structural view when the hollow ring is bolted to the four sector die plates through four mounting holes respectively. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The following further elaborates on the present utility model in conjunction with the drawings.
[0020] Refer to Figures 1 to 7 .
[0021] A split part for preparing an NOL ring, comprising a mounting rod body 1, a hollow ring 2, a limiting outer ring 3 and a winding die. The winding die consists of four equally divided sector die plates 4, and the four sector die plates 4 form a ring. The limiting outer ring 3 and the winding die are alternately detachably mounted on the mounting rod body 1 and are limited by the limiting outer ring 3. Specifically, a limiting ring 6 integrally connected with the mounting rod body 1 is connected to the mounting rod body 1, and a positioning block 7 is connected to the side of the limiting ring 6. In the hollow ring 2, a positioning groove 8 corresponding to the positioning block 7 is provided on the hollow ring 2 adjacent to the limiting ring 6, and the hollow ring 2 is inserted on the positioning block 7 through its positioning groove 8. Four mounting holes 5 corresponding to the four sector die plates 4 are further provided on the hollow ring 2, and the hollow ring 2 is bolted to the four sector die plates 4 through the four mounting holes 5 respectively. The winding die and the hollow ring 2 are limited between the limiting outer ring 3 and the limiting ring 6. A locking bolt 11 is threadedly connected to the limiting outer ring 3, and the bottom end of the locking bolt 11 passes through the limiting outer ring 3 and abuts against the outer side wall of the mounting rod body 1.
[0022] In the utility model, a hollow trapezoidal through hole 12 is provided on the sector die plate 4, and a hollow magazine-shaped through hole 13 is provided on the hollow ring 2. The hollow design of the sector die plate 4 and the hollow ring 2 makes the die lighter. The sector die plate 4 is made of invar alloy, which has a very low thermal expansion coefficient. Within the temperature range of -45 - 250 °C, its size is not affected by temperature and can maintain extremely high structural accuracy, providing an accurate cavity for the preparation of the NOL ring. The two parts of the hollow ring 2 and the sector die plate 4 in the utility model can be combined into an NOL ring cavity, which has the characteristics of simple assembly, easy demoulding and convenient processing. The NOL ring prepared by the utility model is easier to demould than the integral NOL ring die, is not easy to damage the spline, and does not require an ejection mechanism. In the utility model, only 6 components are required, namely the mounting rod body 1, the limiting outer ring 3 (standard part), the hollow ring 2, the sector die plate 4, the locking bolt 11 (standard part) and the bolt (standard part) connecting the hollow ring 2 and the sector die plate 4. Among them, 3 are standard parts, 2 are parts of the utility model, and 1 is a commonly used non-standard round shaft part. The 6 components can form an NOL ring preparation tooling through combination, and combined with a winding machine, the NOL ring can be prepared. Among the non-standard components, there are only the mounting rod body 1, the hollow ring 2 and the sector die plate 4. This design has the characteristics of low cost, compact structure, convenient combination and disassembly, and lightweight die, greatly improving the efficiency.
[0023] In specific implementation, for example: by combining five hollow rings 2 and sixteen sector die plates 4, four annular winding cavities are formed. Among them, the radius of the sector die plate 4 is 75 mm, the radius of the hollow ring 2 is 78 mm, the thickness of both is 6 mm, and the inner circle radius of both is 25 mm. According to Figure 1In the superimposed assembly method shown, the diameter of the mounting hole 5 and the bolt hole of the sector mold plate 4 is set to 9 mm. Four bolts with a diameter of 8 mm pass through the mounting hole 5 and the bolt hole of the sector mold plate 4 (bolt length is 100 mm), and four hex nuts of M8 specification are used to fix them (reference Figure 7 ). The assembled tooling is placed on the mounting rod 1 with a diameter of 50 mm, a limiting ring 6 and a positioning block 7. The length of the mounting rod 1 is 500 mm; the positioning blocks 7 on the mounting rod 1 are symmetrically arranged and match the positioning grooves 8 of the hollow ring 2. The axial length of the positioning block 7 is 6 mm, and the radial height is the same as that of the positioning groove 8, forming an accurate fit. The thickness of the limiting ring 6 is 6 mm, and the diameter is 66 mm. It is located 50 mm from one end of the mounting rod 1. The limiting ring 6 and the positioning block 7 are integrally formed on the mounting rod 1; Subsequently, a limiting outer ring 3 is installed at the other end of the mounting rod 1, and it is ensured that the limiting outer ring 3 is closely attached to the end face of the hollow ring 2 and locked to prevent the tooling from sliding along the mounting rod 1. The entire tooling with the mounting rod 1 is placed on the winding machine, and when the winding machine is started, four NOL rings can be continuously wound in the formed annular winding cavity; after winding to the required thickness, the entire tooling is removed and placed in a curing furnace for rolling curing; after the NOL rings are cured, the limiting outer ring 3 is removed, the hollow ring 2 is separated, and the sector mold plate 4 is disassembled, so as to conveniently obtain four NOL ring samples.
[0024] Another example: By combining 11 hollow rings 2 and 40 sector mold plates 4, 10 annular winding cavities are formed; among them, the radius of the sector mold plate 4 is 75 mm, the radius of the hollow ring 2 is 78 mm, the thickness of the sector mold plate 4 is 6 mm, the thickness of the hollow ring 2 is 8 mm, and the inner circle radius is 25 mm; According to Figure 1 In the superimposed assembly method shown, the diameter of the mounting hole 5 and the bolt hole of the sector mold plate 4 is set to 9 mm. Four bolts with a diameter of 8 mm pass through the mounting hole 5 and the bolt hole of the sector mold plate 4 (bolt length is 200 mm), and four hex nuts of M8 specification are used to fix them (reference Figure 7) Place the assembled tooling on the mounting rod 1 with a diameter of 50 mm, equipped with a limiting ring 6 and positioning blocks 7. The length of the mounting rod 1 is 500 mm. The positioning blocks 7 on the mounting rod 1 are symmetrically arranged and match the positioning grooves 8 of the hollow ring 2. The axial length of the positioning block 7 is 8 mm, and the radial height is the same as that of the positioning groove 8, forming an accurate fit. The thickness of the limiting ring 6 is 8 mm, and the diameter is 66 mm. It is located 50 mm from one end of the mounting rod 1. The limiting ring 6 and the positioning block 7 are integrally formed on the mounting rod 1. Subsequently, install the limiting outer ring 3 at the other end of the mounting rod 1 and ensure that the limiting outer ring 3 closely adheres to the end face of the hollow ring 2 and is locked to prevent the tooling from sliding along the mounting rod 1. Place the entire set of tooling with the mounting rod 1 on the winding machine. Start the winding machine to continuously wind 10 NOL rings in the formed annular winding cavity. After winding to the required thickness, remove the entire tooling and place it in the curing furnace for rolling curing. After the NOL rings are cured, remove the limiting outer ring 3, separate the hollow ring 2, and disassemble the sector die plate 4 to conveniently obtain 10 NOL ring samples.
Claims
1. A split part for preparing a NOL ring, characterized by: The invention comprises a mounting rod (1), a hollow circular ring (2), a limiting outer ring (3) and a winding mold; the winding mold is composed of four equally divided sector-shaped mold discs (4); the four sector-shaped mold discs (4) form a circular ring; the limiting outer ring (3) and the winding mold are alternately detachably mounted on the mounting rod (1), and are limited by the limiting outer ring (3).
2. The split component for preparing a NOL ring according to claim 1, characterized in that: The mounting rod (1) is connected to a limiting ring (6) which is integral with the mounting rod; a positioning block (7) is connected to the side of the limiting ring (6); in the hollow ring (2), a positioning groove (8) corresponding to the positioning block (7) is provided on the hollow ring (2) which is in contact with the limiting ring (6); the hollow ring (2) is inserted into the positioning block (7) through its own positioning groove (8); the hollow ring (2) is also provided with four mounting holes (5) which respectively correspond to the four fan-shaped mold disks (4); the hollow ring (2) is connected to the four fan-shaped mold disks (4) through the four mounting holes (5) by bolts.
3. The split component for preparing a NOL ring according to claim 2, characterized in that: The winding mold and the hollow circular ring (2) are limited between the limiting outer ring (3) and the limiting ring (6); a locking bolt (11) is threadedly connected to the limiting outer ring (3); the bottom end of the locking bolt (11) passes through the limiting outer ring (3) and abuts against the outer side wall of the mounting rod (1).
4. The split component for preparing a NOL ring according to claim 1, characterized in that: The sector-shaped mold disc (4) is made of Invar alloy.
5. The split component for preparing a NOL ring according to claim 1, characterized in that: The sector-shaped mold disc (4) is provided with a hollow trapezoidal through hole (12); the hollow circular ring (2) is provided with a hollow magazine-shaped through hole (13).