A mold for a telescope lens barrel

Abstract

This utility model relates to the field of lens barrel injection mold technology, specifically to a mold for a telescope lens barrel, including a bracket, an outer mold tube, and a bottom mold. A cylinder 1 and a cylinder 2 are fixedly installed at the bottom end of the bracket, and a base plate is fixedly connected to the top end of the bracket. Slide rods 1 are fixedly installed at both ends of the base plate. A platform is fixedly installed in the middle of the bracket, and a rail is fixedly installed on the platform. In this utility model, through the setting of the end mold and the bottom ring mold, after the material is injected, cylinder 1 drives the bottom mold to move downwards, and the core rod is pulled out from the middle of the material. After the hook is locked on the cylinder, the downward movement of the bottom mold drives the bottom ring mold to move downwards, causing the bottom ring mold to detach from the material, thus pulling the core rod out of the material and leaving the material inside the outer mold tube. Subsequently, the end mold, in conjunction with the end mold, pushes the material out of the outer mold tube, realizing the release of the material. This achieves the sequential detachment of the material from the core rod, bottom ring mold, end mold, and outer mold tube, achieving complete unloading of the material.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology for telescope barrels, specifically a mold for a telescope barrel. Background Technology

[0002] As a precision optical instrument, the performance of a telescope depends not only on the quality of its core components such as lenses and equatorial mounts, but also on its mechanical structure—especially the precision, stability, and lightweight nature of the telescope tube. The telescope tube, as the "skeleton" of the telescope, primarily functions to precisely fix and protect internal optical elements (such as the primary and secondary mirrors), ensuring the long-term stability of the optical axis under complex working conditions and effectively resisting the effects of external vibrations, temperature changes, and gravitational deformation. To overcome the shortcomings of traditional methods, the injection molding method for the telescope tube utilizes high-precision molds to allow the main body of the tube or its key components to achieve their final or near-final shape and size through a single molding process or a few machining operations. Advantages include high production efficiency, high repeatability, and excellent surface quality. However, existing molds often rely on ejector pins or high-pressure airflow for unloading. Ejector pins can easily damage the material surface, while airflow unloading carries the risk of jamming. Utility Model Content

[0003] The purpose of this invention is to provide a mold for a telescope barrel to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A mold for a telescope tube, comprising:

[0006] The bracket has cylinder one and cylinder two fixedly installed at its bottom end, a seat plate fixedly connected to the top end of the bracket, and slide rods fixedly installed at both ends of the seat plate. A platform is fixedly installed in the middle of the bracket, and a rail is fixedly installed on the platform.

[0007] An outer mold tube is slidably installed between two slide rods. One end of the outer mold tube is provided with an end mold. The end mold is movably sleeved with the inner wall of one end of the outer mold tube. The end mold is used to shape the top of the material. The outer mold tube is used to shape the outer contour of the material. The output end of the cylinder is fixedly connected to the outer wall of the outer mold tube.

[0008] A bottom mold is set at the bottom end of the outer mold tube. The output end of the cylinder is fixedly installed with the bottom mold. A slide rod is fixedly connected to one end of the bottom mold. The slide rod is slidably sleeved with one end of the rail rod. A core rod is fixedly connected to the other end of the bottom mold. A bottom ring mold is slidably sleeved at one end of the core rod. The core rod is used to shape the inner contour of the material, and the bottom ring mold is used to shape the bottom end of the material.

[0009] Furthermore, an injection port is fixedly installed at one end of the bottom mold, and an injection hole is opened on the core rod, with the injection hole and the injection port communicating with each other.

[0010] Furthermore, the outer wall of the bottom mold is provided with multiple venting slots II, and a hook frame is fixedly connected to one end of the bottom ring mold at the position corresponding to the multiple venting slots II. The hook frame is slidably connected to the corresponding venting slot II. A cylinder is fixedly connected to one end of the venting slot II. The cylinder is slidably connected to the hook frame. The outer wall of the core rod is provided with multiple venting slots I, and a compression spring is fixedly connected between one end of the venting slot I and the bottom ring mold.

[0011] Furthermore, one end of the end mold is fixedly connected to a second tube component, the middle position of the seat plate is fixedly connected to a first tube component, the outer side wall of the first tube component is provided with an inclined groove, and the outer side wall of the second tube component is fixedly connected to a plurality of limiting posts, the limiting posts being used to slide into the inclined groove.

[0012] Furthermore, the other end of the end mold is provided with an end groove, and one end of the core rod fits into the end groove.

[0013] Furthermore, a limiting ring is fixedly installed at one end of the outer mold tube, and an outer ring component is fixedly connected to one end of the outer mold tube. The outer ring component is used to limit the end mold. Multiple embedding grooves are provided on the limiting ring, and multiple embedding blocks are fixedly connected to the end mold. The embedding blocks fit into the embedding grooves.

[0014] Furthermore, the top end of the outer mold tube is provided with an exhaust hole, which is used to exhaust air outward.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting up the end mold and bottom ring mold, after the material is injected, the cylinder drives the bottom mold to move down. Under the action of the compression spring, the bottom ring mold always abuts against the bottom end of the outer mold tube, so that the core rod is pulled out from the middle of the material. After the hook is stuck on the cylinder, the downward movement of the bottom mold drives the bottom ring mold to move down, so that the bottom ring mold is separated from the material, realizing the extraction of the core rod from the material, leaving the material in the outer mold tube. Then, in conjunction with the end mold, the material is pushed out from the outer mold tube, realizing the release of the material. This realizes the separation and adhesion of the material from the core rod, bottom ring mold, end mold and outer mold tube in sequence, realizing the complete unloading of the material. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall side view structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the support structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the outer mold tube and the frame structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the midsole mold structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the outer mold tube in this utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the mid-end mold of this utility model.

[0023] In the diagram: 100, bracket; 110, platform; 120, seat plate; 130, slide rod one; 140, tube fitting one; 141, inclined groove; 150, cylinder one; 160, cylinder two; 170, slide rod two; 180, rail rod; 200, outer mold tube; 201, vent hole; 210, limiting ring; 211, embedding groove; 220, outer ring fitting; 230, end mold; 231, embedding block; 232, end groove; 233, tube fitting two; 234, limiting post; 300, bottom mold; 310, core rod; 311, injection hole; 320, bottom ring mold; 321, hook frame; 330, venting groove one; 331, compression spring; 340, venting groove two; 341, cylinder; 350, injection port. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5In this embodiment of the present invention, a mold for a telescope tube includes a support 100, an outer mold tube 200, and a bottom mold 300. A cylinder 150 and a cylinder 160 are fixedly mounted at the bottom end of the support 100. A base plate 120 is fixedly connected to the top end of the support 100. Slide rods 130 are fixedly mounted at both ends of the base plate 120. A platform 110 is fixedly mounted in the middle of the support 100, and a rail rod 180 is fixedly mounted on the platform 110. The outer mold tube 200 is slidably mounted on the two slide rods. Between points 1 and 130, an end mold 230 is provided at one end of the outer mold tube 200. The end mold 230 is movably sleeved with the inner wall of one end of the outer mold tube 200. The end mold 230 is used to shape the top of the material, and the outer mold tube 200 is used to shape the outer contour of the material. The output end of cylinder 160 is fixedly connected to the outer wall of the outer mold tube 200. The bottom mold 300 is located at the bottom end of the outer mold tube 200. The output end of cylinder 150 is fixedly installed with the bottom mold 300. One end of the bottom mold 300... A sliding rod 170 is fixedly connected to one end of a rail rod 180. A core rod 310 is fixedly connected to the other end of the bottom mold 300. A bottom ring mold 320 is slidably connected to one end of the core rod 310. The core rod 310 is used to shape the inner contour of the material, and the bottom ring mold 320 is used to shape the bottom end of the material. An injection port 350 is fixedly installed at one end of the bottom mold 300. An injection hole 311 is opened on the core rod 310, and the injection hole 311 communicates with the injection port 350. The outer wall of the mold 300 has multiple venting slots 340. One end of the bottom ring mold 320 is fixedly connected to a hook 321 corresponding to the position of the multiple venting slots 340. The hook 321 is slidably connected to the corresponding venting slot 340. One end of the venting slot 340 is fixedly connected to a cylinder 341. The cylinder 341 is slidably connected to the hook 321. The outer wall of the core rod 310 has multiple venting slots 330. One end of the venting slot 330 is fixedly connected to the bottom ring mold 320 with a compression spring 331.

[0026] Specifically, after the material injection is completed, cylinder 150 drives the bottom mold 300 to move downward. Under the action of the compression spring 331, the bottom ring mold 320 is always in contact with the bottom end of the outer mold tube 200, so that the core rod 310 is pulled out from the middle of the material. After the hook 321 is locked on the cylinder 341, the downward movement of the bottom mold 300 drives the bottom ring mold 320 to move downward, so that the bottom ring mold 320 is separated from the material, thereby pulling the core rod 310 out of the material and leaving the material in the outer mold tube 200. Then, in conjunction with the end mold 230, the material is pushed out from the outer mold tube 200, thereby releasing the material. This process separates the material from the core rod 310, the bottom ring mold 320, the end mold 230, and the outer mold tube 200 in sequence, achieving complete unloading of the material.

[0027] Example 1

[0028] like Figures 3-6As shown, in this embodiment, one end of the end mold 230 is fixedly connected to a second tube component 233, and a first tube component 140 is fixedly connected to the middle position of the seat plate 120. An inclined groove 141 is formed on the outer wall of the first tube component 140, and multiple limiting posts 234 are fixedly connected to the outer wall of the second tube component 233. The limiting posts 234 are used to slide into the inclined groove 141. The other end of the end mold 230 is provided with an end groove 232, and one end of the core rod 310 fits into the end groove 232. A limiting ring 210 is fixedly installed at one end of the outer mold tube 200, and an outer ring 220 is fixedly connected to one end of the outer mold tube 200. The outer ring 220 is used to limit the end mold 230. Multiple embedding grooves 211 are provided on the limiting ring 210, and multiple embedding blocks 231 are fixedly connected to the end mold 230. The embedding blocks 231 fit into the embedding grooves 211. An exhaust hole 201 is provided at the top end of the outer mold tube 200. The exhaust hole 201 is used to exhaust air outward.

[0029] In this embodiment, after the bottom mold 300 moves down, the cylinder 2 160 pushes the outer mold tube 200 upward along the slide bar 130. The outer mold tube 200 pushes the end mold 230 into the cylindrical tube 140, so that the limiting post 234 is inserted into the inclined groove 141. The inclined groove 141 squeezes the end mold 230 to rotate, so that the end mold 230 rotates relative to the limiting ring 210. The rotation of the end mold 230 causes the end mold 230 to separate from the end of the material. When the embedding block 231 is aligned with the embedding groove 211, the continued upward movement of the outer mold tube 200 will cause the embedding block 231 to be embedded into the embedding groove 211, so that the end mold 230 moves down relative to the outer mold tube 200. That is, the end mold 230 pushes the material downward, thereby separating the material from the inner wall of the outer mold tube 200. Then the material slides down under its own weight, completing the material detachment.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mold for a telescope tube, characterized in that, include: A bracket (100) has a cylinder 1 (150) and a cylinder 2 (160) fixedly installed at its bottom end. A seat plate (120) is fixedly connected to the top end of the bracket (100). A slide rod 1 (130) is fixedly installed at both ends of the seat plate (120). A platform (110) is fixedly installed in the middle of the bracket (100). A rail rod (180) is fixedly installed on the platform (110). An outer mold tube (200) is slidably installed between two sliding rods (130). One end of the outer mold tube (200) is provided with an end mold (230). The end mold (230) is movably sleeved with the inner wall of one end of the outer mold tube (200). The end mold (230) is used to shape the top of the material. The outer mold tube (200) is used to shape the outer contour of the material. The output end of the cylinder (160) is fixedly connected to the outer wall of the outer mold tube (200). A bottom mold (300) is set at the bottom end of the outer mold tube (200). The output end of the cylinder (150) is fixedly installed with the bottom mold (300). A slide rod (170) is fixedly connected to one end of the bottom mold (300). The slide rod (170) is slidably sleeved with one end of the rail rod (180). A core rod (310) is fixedly connected to the other end of the bottom mold (300). A bottom ring mold (320) is slidably sleeved at one end of the core rod (310). The core rod (310) is used to shape the inner contour of the material, and the bottom ring mold (320) is used to shape the bottom end of the material.

2. The mold for a telescope tube according to claim 1, characterized in that, An injection port (350) is fixedly installed at one end of the bottom mold (300), and an injection hole (311) is opened on the core rod (310), and the injection hole (311) is connected to the injection port (350).

3. The mold for a telescope tube according to claim 1, characterized in that, The outer wall of the bottom mold (300) is provided with a plurality of venting slots 2 (340). One end of the bottom ring mold (320) is fixedly connected to a hook frame (321) at the position corresponding to the plurality of venting slots 2 (340). The hook frame (321) is slidably connected to the corresponding venting slot 2 (340). One end of the venting slot 2 (340) is fixedly connected to a cylinder (341). The cylinder (341) is slidably connected to the hook frame (321). The outer wall of the core rod (310) is provided with a plurality of venting slots 1 (330). One end of the venting slot 1 (330) is fixedly connected to the bottom ring mold (320) with a compression spring (331).

4. The mold for a telescope tube according to claim 3, characterized in that, One end of the end mold (230) is fixedly connected to a second tube (233), and a first tube (140) is fixedly connected to the middle position of the seat plate (120). The outer side wall of the first tube (140) is provided with an inclined groove (141), and the outer side wall of the second tube (233) is fixedly connected with a plurality of limiting posts (234). The limiting posts (234) are used to slide into the inclined groove (141).

5. The mold for a telescope tube according to claim 4, characterized in that, The other end of the end mold (230) is provided with an end groove (232), and one end of the core rod (310) fits into the end groove (232).

6. The mold for a telescope tube according to claim 4, characterized in that, One end of the outer mold tube (200) is fixedly installed with a limiting ring (210), and one end of the outer mold tube (200) is fixedly connected with an outer ring component (220). The outer ring component (220) is used to limit the end mold (230). The limiting ring (210) has multiple embedding grooves (211), and the end mold (230) has multiple embedding blocks (231) fixedly connected. The embedding blocks (231) fit into the embedding grooves (211).

7. The mold for a telescope tube according to claim 4, characterized in that, The top end of the outer mold tube (200) is provided with an exhaust hole (201), which is used to exhaust air outward.

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