High-precision thread-containing lens cone demolding structure
By designing the threaded inserts and endoscope inserts independently and driving them with electric components, the problem that traditional endoscope barrel molds cannot simultaneously meet the requirements of threaded demolding and high-precision geometric tolerances has been solved, achieving efficient and high-precision endoscope barrel demolding and reducing production costs.
Patent Information
- Application Number
- CN202422388602.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Traditional lens barrel and base mold structures cannot simultaneously meet the requirements of thread demolding and high-precision geometric tolerances and dimensional tolerances, resulting in low production efficiency and high costs.
The screw thread insert and the endoscope stop insert are designed independently. The screw thread insert is driven to rotate by an electric component to achieve demolding. Combined with the insert support column and gear system, the screw thread and the endoscope stop are simultaneously removed.
It achieves high-precision demolding, shortens the molding cycle, reduces production costs, and improves production efficiency.
Smart Images
Figure CN223456405U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a high-precision lens barrel demoulding structure containing screw thread. BACKGROUND
[0002] With the development of security lens and vehicle-mounted lens industry, the base and lens barrel integrated design has become a popular design scheme of high efficiency and low cost. However, the traditional lens barrel and base mold structure cannot meet the demand, and cannot meet the demoulding of screw thread and guarantee the high requirement of shape and position tolerance and size tolerance of inner mirror. SUMMARY
[0003] In view of the deficiencies of the prior art, the utility model wants to solve the technical problem to provide a high-precision lens barrel demoulding structure containing screw thread.
[0004] In order to solve the above technical problem, the technical scheme of the utility model is: a high-precision lens barrel demoulding structure containing screw thread, including the mould core, the screw thread insert is coaxially arranged in the mould core, the inner mirror insert is coaxially arranged in the screw thread insert, wherein the screw thread insert is driven to rotate by the electric assembly.
[0005] Preferably, the top end of the screw thread insert penetrates the mould core to cooperate with the screw thread part of the lens barrel, and the bottom end of the screw thread insert penetrates the mould core to connect the electric assembly.
[0006] Preferably, a insert support column is arranged below the bottom end of the screw thread insert to support the screw thread insert.
[0007] Preferably, the electric assembly includes a belt wheel driven to rotate by a motor, a first gear shaft is fixedly connected coaxially on the belt wheel, a second gear shaft is connected coaxially by a key, a driving gear is fixedly connected coaxially on the second gear shaft, a driven gear is engaged on the periphery of the driving gear, and the driven gear is fixedly connected coaxially at the bottom end of the screw thread insert.
[0008] Preferably, the top end of the inner mirror insert penetrates the screw thread insert to cooperate with the inner mirror part of the lens barrel, and the bottom end of the inner mirror insert penetrates the bottom end of the screw thread insert.
[0009] Compared with the prior art, the utility model has the following beneficial effects:
[0010] 1. The independent insert design of the screw thread insert and the inner mirror insert facilitates the replacement of the insert during mold repair.
[0011] 2. The independent insert design of the screw thread insert and the inner mirror insert avoids the instability of the size of the inner mirror due to the rotation of the screw thread.
[0012] 3. The mold opening action is completed at the same time as the product demolding action, which can shorten the molding cycle and reduce production costs to a certain extent.
[0013] The utility model will be explained further in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a barrel structure schematic view of the utility model embodiment.
[0015] Figure 2 It is a sectional view of the utility model embodiment.
[0016] Figure 3 It is a working state schematic view of the utility model embodiment Figure 1 .
[0017] Figure 4 It is a working state schematic view of the utility model embodiment Figure 2 .
[0018] Figure 5 It is a working state schematic view of the utility model embodiment Figure 3 . DETAILED DESCRIPTION
[0019] The utility model will be explained further in combination with the drawings and specific embodiments.
[0020] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application pertains.
[0021] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.
[0022] As shown in Figures 1-5 The present embodiment provides a high-precision barrel demolding structure with threads, which comprises a mold core 1, a thread insert 2 coaxially arranged inside the mold core, and an inner mirror stop insert 3 coaxially arranged inside the thread insert, wherein the thread insert is driven to rotate by an electric assembly 4.
[0023] The thread insert is independent of the inner mirror stop insert and has a complete thread withdrawal system (electric assembly) of its own, and the inner mirror stop insert is not affected by the thread insert and is withdrawn independently.
[0024] In the embodiment of the utility model, the top end of the screw thread insert penetrates the mold core to cooperate with the screw thread part 6 of the lens barrel 5, and the bottom end of the screw thread insert penetrates the mold core to connect the electric component.
[0025] In the embodiment of the utility model, the bottom end of the screw thread insert is provided with an insert support column 7 below to support the screw thread insert, and the insert support column can be adjusted in lifting.
[0026] The support of the screw thread insert depends on the insert support column, and after the insert support column is lowered, the motor drives the screw thread insert to rotate and retreat. The support of the endoscope stop insert depends on the support plate of the mold alone, and after the front and rear mold plates of the mold are opened, the support plate drives the endoscope stop insert to retreat.
[0027] In the embodiment of the utility model, the electric component comprises a belt wheel 8 driven to rotate by a motor, a first gear shaft 9 is coaxially fixedly connected to the belt wheel, a second gear shaft 10 is coaxially connected to the first gear shaft through a key, a driving gear 11 is coaxially fixedly connected to the second gear shaft, a driven gear 12 is engaged with the periphery of the driving gear, and the driven gear is coaxially fixedly connected to the bottom end of the screw thread insert.
[0028] In the embodiment of the utility model, the top end of the endoscope stop insert penetrates the screw thread insert to cooperate with the endoscope stop part 13 of the lens barrel, and the bottom end of the endoscope stop insert penetrates the bottom end of the screw thread insert.
[0029] In the embodiment of the utility model, when the mold is opened, the insert support column retreats (is lowered), and space is left for the retreat of the screw thread (as shown in Figure 3 The motor is started to rotate, the driving gear is driven to rotate through the matched gear, the driven gear is driven to rotate, the formed screw thread insert is reversely retreated, and the screw thread insert is withdrawn from the product, so that the demolding purpose is achieved (as shown in Figure 4 Then, after the front and rear mold plates are opened, the support plate of the mold drives the endoscope stop insert to be withdrawn from the product (as shown in Figure 5 When the mold is closed, the motor does not rotate, and each plate can be closed through the mold closing of the injection molding machine, and each plate returns to the mold closing state. The structure mold solves the contradiction that the lens barrel mold with screw threads needs to complete screw thread demolding, ensure the size of the endoscope stop, and require the opening action to be completed at the same time.
[0030] The above is only a preferred embodiment of the utility model, and does not limit other forms of the utility model. Any skilled person in the art can modify or change the above disclosed technical content into equivalent embodiments. However, any simple modification, equivalent change and modification made on the basis of the technical essence of the utility model to the above embodiments still belongs to the protection scope of the technical scheme of the utility model.
Claims
1. A high-precision lens barrel demolding structure with a screw thread, characterized by: The mould core is internally coaxially provided with a screw insert, and the screw insert is internally coaxially provided with an inner mirror stop insert.
2. The high precision threaded barrel demolding structure according to claim 1, characterized in that: The top end of the screw insert penetrates the mould core to cooperate with the screw part of the lens barrel, and the bottom end of the screw insert penetrates the mould core to connect the electric assembly.
3. The high precision threaded barrel demolding structure according to claim 2, characterized in that: A insert support column is arranged below the bottom end of the screw insert to support the screw insert.
4. The high precision threaded barrel demolding structure according to claim 3, characterized in that: The electric assembly comprises a belt wheel driven to rotate by a motor, a first gear shaft is coaxially fixed to the belt wheel, a second gear shaft is coaxially connected to the first gear shaft through a key, a driving gear is coaxially fixed to the second gear shaft, a driven gear is engaged with the driving gear, and the driven gear is coaxially fixed to the bottom end of the screw insert.
5. The high precision threaded barrel demolding structure according to claim 1, characterized in that: The top end of the inner mirror stop insert penetrates the screw insert to cooperate with the inner mirror stop part of the lens barrel, and the bottom end of the inner mirror stop insert penetrates the bottom end of the screw insert.