A profile die capable of self-adapting posture

Abstract

The utility model discloses a profile die of self -adaptation adjustment attitude has the open -ended inner chamber (41) and outer cylindrical surface (51) of longitudinal opening, the open -ended inner chamber (41) is used for clamping die core vice (42), is provided with at least one parallel to the cylindrical tangent plane (53) of die vertical axis on the outer cylindrical surface (51). The outer facade of the original rectangular open -ended die has been reformed, the outer cylindrical surface is additionally provided, the cylindrical tangent plane is also symmetrically provided on the outer cylindrical surface, and the central angle B of the cylindrical tangent plane is ensured to be not greater than 60 DEG (less than the supplementary angle of the prong opening angle), so that the die can be self -adaptation adjustment attitude under the action of the prong of the unloading area of the moulding press and under the action of the prong of the pressing area inside the moulding press, and the problem that the finished product rate can be caused to drop due to the inaccurate placement of the die position and angle in manual loading in operation is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of optical lens processing, specifically a molding die for lens molding processing. Background Technology

[0002] Molding is a modern method for manufacturing optical lenses, particularly suitable for mass production of optical lenses with complex curved surfaces. In ZL202120141231X, the inventors used "an open lens molding mold" to press FAC aspherical cylindrical lenses used for laser beam collimation, solving the problems of unobstructed mold venting and convenient window observation.

[0003] However, molds with a rectangular shape when viewed from above often experience instability during use, including inaccurate center positioning within the various workstations of the molding machine and incorrect orientation of the mold's open windows, affecting product qualification rate and production efficiency. To address this issue, based on ZL202120141231X, this utility model provides a molding die with adaptively adjustable posture. Summary of the Invention

[0004] To address the technical problems mentioned in the background section, this utility model provides the following technical solution: A pressing mold with adaptively adjustable posture is characterized by having an open inner cavity 41 with a longitudinal opening and an outer cylindrical surface 51, wherein the open inner cavity 41 is used to engage the mold core pair 42, and at least one cylindrical planar surface 53 parallel to the vertical axis of the mold is provided on the outer cylindrical surface 51.

[0005] Furthermore, the cylindrical planar section 53 has a centripetal angle B, and the centripetal angle B is not greater than 60°.

[0006] Preferably, the axial height of the outer cylindrical surface 51 is not higher than the bottom surface height of the mold core assembly 42.

[0007] By adopting the above technical solution, this utility model has the following beneficial effects: Due to the addition of an outer cylindrical surface 51, a cylindrical flat section 53 is opened on the outer cylindrical surface 51, and the centripetal angle B of the cylindrical flat section 53 is ensured to be no greater than 60° (less than the supplementary angle of the push fork angle), so that the mold can adaptively adjust its posture under the action of the push fork in the loading and unloading area of ​​the molding press and the action of the push fork in the pressing area inside the molding press, effectively avoiding the problem of reduced yield caused by inaccurate placement of the mold position and angle during operation. Attached Figure Description

[0008] Figure 1 A top view of the push fork pushing the original rectangular open mold; Figure 2A top view of a push fork pushing an open mold with an outer cylindrical surface; Figure 3 for Figure 2 Front view of the structure; Figure 4 This is a top view of a mold with a flat section on its outer cylindrical surface; Figure 5 A top view of a mold with a cylindrical cross-section fork. Figure 6 This is a front view of an open mold with a cylindrical flat section.

[0009] In the diagram: 1. X-axis push fork; 2. Y-axis push fork; 3. Push fork V-groove opening; 4. Open mold; 41. Open inner cavity; 42. Mold core pair; 5. Open mold with cylindrical surface; 51. Outer cylindrical surface; 52. Upper rectangular outer surface; 53. Cylindrical flat section; 6. Shift fork. Detailed Implementation

[0010] The technical solution will now be described with reference to the accompanying drawings. Figures 1 to 6 As shown, during production, the operator places the mold core 42, which holds the pre-shaped body, into the open cavity 41 of the open mold 4, and then manually places the mold 4 into the feeding position set by the machine. The X-axis push fork 1 and Y-axis push fork 2 of the machine transport the mold into the molding press. Inside the molding press, the shift fork 6 moves the mold one by one to the workstations at different temperatures until the molding is completed. The machine then uses another set of push forks to push the mold to another set position, where the worker removes it manually (unloading).

[0011] The push fork of a molding machine typically has a V-groove 3. This is because the outer surface of molds in the industry is generally cylindrical. The V-groove 3 can automatically adjust the position of the mold along the X and Y axes, and cylindrical molds in the industry can generally be placed arbitrarily in the circumferential direction without the need for circumferential adjustment. However, problems arise with open molds 4 with rectangular outer surfaces because manual loading cannot achieve precise positioning (deviation from the X and Y axes) and precise circumferential positioning (e.g., ...). Figure 1 The open mold 4 axis is deflected by about 5 degrees from the X and Y axes, which causes the mold 4 to be inaccurate in position and angle during the pushing and turning process. This will affect the temperature field distribution of the open mold 4 in the molding machine, and ultimately affect the product yield.

[0012] like Figure 2 and Figure 3 The mold is modified into a cylindrical open mold 5 with an outer cylindrical surface 51. In this embodiment, the upper outer surface 52 still maintains the rectangular shape of the original open mold 4, while the lower part is the outer cylindrical surface 51. It should be noted that the upper part 52 of the mold can also be made into an outer cylinder that is integral with the outer cylindrical surface 51. Figure 3The mold was not made into a continuous outer cylindrical surface 51 because this would affect the temperature field distribution during the initial design of the open mold 4. Figure 3 In the actual embodiment, the axial height of the outer cylindrical surface 51 is not higher than the bottom surface height of the mold core 42.

[0013] Furthermore, Figure 4 In the middle, four cylindrical planar surfaces 53 are symmetrically formed on the outer cylindrical surface 51. The cylindrical planar surfaces 53 are tangent planes parallel to the vertical axis of the mold. Figure 5 When the die is moved by the shift fork 6 inside the molding press, the angle of the flat surface 53 moved by the shift fork lever can be adaptively adjusted. Obviously, during operation, only one flat surface 53 is moved by the shift fork 6. For the sake of temperature field symmetry, in practice... Figure 4 The cylindrical cross-section 53 is set to four.

[0014] Figure 4 In the cylindrical planar section 53, there is a centripetal angle B, which has a matching relationship with the V-groove angle A of the push fork: angle B must be smaller than the supplementary angle of A. Usually, the angle A of the push fork is about 120° (its supplementary angle is 60°), so B cannot be greater than 60°. However, if angle B is too small, it will be not conducive to the adjustment operation of the shift fork 6. Therefore, in the embodiment, the actual angle B is set to 40°.

[0015] In summary, this utility model modifies the shape of the original rectangular open mold 4 by adding an outer cylindrical surface 51 and symmetrically opening cylindrical planar surfaces 53 on the outer cylindrical surface 51. It also ensures that the centripetal angle B of the cylindrical planar surface 53 is less than the supplementary angle A of the push fork, so that the mold can adaptively adjust its posture under the action of the push fork in the loading and unloading area of ​​the molding press and the action of the shift fork in the pressing area inside the molding press. This effectively avoids the problem of reduced yield caused by inaccurate placement of the loading position and angle during operation.

[0016] The embodiments of this utility model have been described above. Those skilled in the art can make modifications, substitutions, and variations to the embodiments without departing from the principles and spirit of this utility model, as long as they are within the scope of the claims of this utility model, they are protected by patent law.

Claims

1. A pressing die with adaptively adjustable posture, characterized in that: It has an open inner cavity (41) with a longitudinal opening and an outer cylindrical surface (51), the open inner cavity (41) is used to engage the mold core assembly (42), and at least one cylindrical planar surface (53) parallel to the vertical axis of the mold is provided on the outer cylindrical surface (51).

2. The adaptively adjustable pressing die according to claim 1, characterized in that: The cylindrical planar section (53) has a centripetal angle B, and the centripetal angle B is not greater than 60°.

3. The adaptively adjustable pressing die according to claim 1, characterized in that: The axial height of the outer cylindrical surface (51) is not higher than the bottom height of the mold core pair (42).

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