Periscope type lens barrel injection mold
By designing automated injection molds, the problem of difficult demolding of periscope tubes was solved, enabling efficient blanking and production of cylindrical tubes and reducing the time and labor intensity of manual operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO YONGXU IND PRODUCTS MANUFACTURING CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-12
AI Technical Summary
Existing injection molds for periscope barrels are inconvenient for demolding and unloading. Conventional molds are unable to eject cylindrical plastic parts, resulting in time-consuming, labor-intensive, and inefficient processes.
An injection mold comprising a mounting bracket, a support assembly, a rotating assembly, and a pushing assembly was designed. The mold is moved by a cylinder, and the screw is rotated by a motor. Combined with a limit plate and a support rod, automated demolding is achieved, eliminating the need for manual operation.
It has enabled automated demolding of periscope-type barrels, improving material cutting and production efficiency, and reducing manual operation time and labor intensity.
Smart Images

Figure CN224348290U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for a periscope-type lens barrel. Background Technology
[0002] Periscope barrel injection molds are injection molding tools specifically designed for molding periscope barrel components. These molds employ high-precision machining processes, precisely molding the cavity according to the tubular structure of the barrel (including inner wall smoothness, end interface dimensions, and possible stepped or groove designs) to ensure the plastic part meets the assembly precision requirements of optical components. The mold's internal runner and gating system ensures uniform filling of the cavity with molten plastic, preventing barrel wall thickness deviations due to uneven filling. Simultaneously, to ensure the structural stability of the barrel, the mold integrates efficient cooling channels to accelerate part setting and reduce shrinkage deformation. For barrels requiring lightweighting or specific strength, the mold can be adapted to the molding needs of modified plastics such as glass fiber reinforced plastics, ultimately achieving mass production of the barrel in a single injection molding process, meeting the requirements for dimensional consistency and structural reliability in periscope assembly.
[0003] Existing periscope-type lens barrel injection molds are inconvenient to demold and unload due to their cylindrical shape. Conventional injection molds are difficult to eject cylindrical plastic parts, and manual demolding is time-consuming, labor-intensive, and inefficient. Therefore, a periscope-type lens barrel injection mold is needed to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a periscope-type lens barrel injection mold, which solves the problem that in the existing technology, periscope-type lens barrel injection molds are cylindrical in shape, making demolding and unloading inconvenient. Conventional injection molds are difficult to eject cylindrical plastic parts, and manual demolding is time-consuming, labor-intensive, and inefficient.
[0005] This utility model provides the following technical solution: a periscope-type lens barrel injection mold, including a mounting frame, a material outlet at the bottom of the mounting frame, injection molds at the left and right sides of the mounting frame, a support component at the top of the mounting frame, a rotating component from the top of the support component to the inside of the injection mold, and a material pushing component at the outer end of the rotating component.
[0006] As a preferred embodiment of the above technical solution, the injection mold includes two cylinders, which are respectively fixedly installed on the left and right sides of the mounting frame. The telescopic ends of the two cylinders are fixedly connected to a mold, and each mold has a forming groove on its side.
[0007] As a preferred embodiment of the above technical solution, two sliding grooves are provided on the inner bottom of the mounting bracket, and a slider is fixedly connected to the bottom of each mold, and each slider is slidably connected in each sliding groove.
[0008] As a preferred embodiment of the above technical solution, the support assembly includes two support rods, both of which are fixedly connected to the top of the mounting frame, and a limit frame is fixedly connected between the tops of the two support rods.
[0009] As a preferred embodiment of the above technical solution, the rotating assembly includes a motor, which is fixedly installed in the middle of the limiting frame. A screw is installed at the output end of the motor, and a mold is fixedly connected to the bottom end of the screw.
[0010] As a preferred embodiment of the above technical solution, the second mold is inserted between the two forming grooves.
[0011] As a preferred embodiment of the above technical solution, the pushing assembly includes a screw barrel, which is threadedly connected to the outer end of the screw rod. A push plate is fixedly connected to the bottom end of the screw barrel. Both the screw barrel and the push plate are inserted between two forming grooves. Two limiting plates are fixedly connected to the top side end of the screw barrel, and each limiting plate is respectively sleeved on the outer end of each support rod.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention utilizes a combination of injection molds, support components, rotating components, and ejector components. Two cylinders are activated to move each mold. After the two molds move closer together, they enclose the screw barrel, ejector plate, and mold within two forming grooves, creating a cavity for the cylindrical body. Liquid molding is then injected into the forming grooves through an injection port on one side of the mold. A circulating cooling system within the mold cools and solidifies the injection liquid, forming a periscope-like lens barrel within the forming grooves. The two cylinders are then controlled to move... Once the mold is retracted, the periscope-like tube is located at the outer end of mold two. By starting the motor, the screw is driven to rotate. At this time, the periscope-like tube, which is attached to the outer end of mold two, will also rotate. Due to the limiting position of the support rod and the limiting plate, the rotation of the screw and mold two can drive the screw tube and the push plate to move down. Therefore, the periscope-like tube at the outer end of mold two can be pushed out of the discharge port. Thus, this device facilitates the demolding and discharge of cylindrical periscope-like tubes without the need for manual demolding, saving time and effort and improving the discharge efficiency and production efficiency of periscope-like tubes. Attached Figure Description
[0014] Figure 1 A schematic diagram of the overall structure of an injection mold for a periscope-type lens barrel;
[0015] Figure 2This is a cross-sectional structural diagram of a periscope-type lens barrel injection mold;
[0016] Figure 3 A three-dimensional structural diagram of an injection mold for a periscope-type lens barrel;
[0017] Figure 4 for Figure 3 A magnified schematic diagram of part A in the diagram.
[0018] In the diagram: 1. Mounting frame; 101. Material outlet; 102. Slide groove; 2. Injection mold; 201. Cylinder; 202. Mold one; 203. Forming groove; 204. Slider; 3. Support assembly; 301. Support rod; 302. Limiting frame; 4. Rotating assembly; 401. Motor; 402. Screw; 403. Mold two; 5. Pushing assembly; 501. Screw barrel; 502. Push plate; 503. Limiting plate. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0020] like Figures 1-4 As shown, this utility model provides a technical solution: a periscope-type lens barrel injection mold, including a mounting frame 1, a discharge port 101 at the bottom of the mounting frame 1, injection molds 2 at the left and right sides of the mounting frame 1, a support component 3 at the top of the mounting frame 1, a rotating component 4 from the top of the support component 3 to the inside of the injection mold 2, and a pusher component 5 at the outer end of the rotating component 4. The injection mold 2 and the rotating component 4 cooperate to realize the injection molding production of the periscope-type lens barrel. The support component 3 limits the pusher component 5. When the rotating component 4 rotates, it can easily drive the pusher component 5 to move down. At this time, it is easy to push the periscope-type lens barrel attached to the outer end of the rotating component 4 to discharge, which facilitates the demolding of the periscope-type lens barrel. Therefore, this device facilitates the demolding and discharge of periscope-type lens barrels with a cylindrical shape, eliminating the need for manual demolding, saving time and effort, and improving the discharge efficiency and production efficiency of periscope-type lens barrels.
[0021] As one implementation method in this embodiment, such as Figure 2 , Figure 3 and Figure 4As shown, the injection mold 2 includes two cylinders 201, which are fixedly installed on the left and right sides of the mounting frame 1 respectively. The telescopic ends of both cylinders 201 are fixedly connected to mold 202. Each mold 202 has a molding groove 203 on its side. The bottom inner side of the mounting frame 1 has two sliding grooves 102. Each mold 202 has a slider 204 fixedly connected to its bottom. Each slider 204 is slidably connected within each sliding groove 102. In practice, by activating the two cylinders 201, each mold 202 is driven... 202 moves, and slider 204 is slidably connected in the groove 102, which can improve the stability of the movement of mold 202. After the two molds 202 are close to each other and connected, the pusher component 5 and the rotating component 4 are wrapped in the two forming grooves 203. At this time, the cavity of the cylinder is formed in the forming groove 203. Then, it is convenient to inject the injection liquid into the forming groove 203 through the injection port on the side of the mold 202. The injection liquid is cooled and shaped by the circulating cooling system set in the mold 202. At this time, the periscope-like lens barrel can be formed in the forming groove 203.
[0022] As one implementation method in this embodiment, such as Figure 2 and Figure 3 As shown, the support assembly 3 includes two support rods 301, both of which are fixedly connected to the top of the mounting frame 1. A limit frame 302 is fixedly connected between the tops of the two support rods 301. The rotating assembly 4 includes a motor 401, which is fixedly installed in the middle of the limit frame 302. A screw 402 is installed at the output end of the motor 401. A mold 403 is fixedly connected to the bottom end of the screw 402. The mold 403 is inserted between two forming grooves 203. The pushing assembly 5 includes a screw barrel 501, which is threaded to the outer end of the screw 402. A push plate 502 is fixedly connected to the bottom end of the screw barrel 501. Both the screw barrel 501 and the push plate 502 are inserted between two forming grooves 203. Two limit plates 503 are fixedly connected to the top side of the screw barrel 501. Limiting plates 503 are respectively fitted onto the outer ends of each support rod 301. In practice, by controlling two cylinders 201, the mold 1 202 is retracted. At this time, the periscope-like tube is located at the outer end of the mold 2 403. By starting the motor 401, the screw 402 is rotated. At this time, the periscope-like tube stuck to the outer end of the mold 2 403 will also rotate. At this time, due to the limitation of the support rod 301 and the limiting plate 503, the screw 402 and the mold 2 403 can drive the screw tube 501 and the push plate 502 to move down while rotating. Therefore, the periscope-like tube at the outer end of the mold 2 403 can be pushed out from the discharge port 101. Therefore, this device facilitates the demolding and unmolding of cylindrical periscope-like tubes, eliminating the need for manual demolding, saving time and effort, and improving the unmolding efficiency and production efficiency of periscope-like tubes.
[0023] Working principle: By activating two cylinders 201, each mold 202 is moved. After the two molds 202 are brought closer together, the screw barrel 501, push plate 502, and mold 403 are enclosed in two forming grooves 203. At this time, a cavity for the cylinder is formed in the forming grooves 203. Then, liquid molding is injected into the forming grooves 203 through the injection port on the side of the mold 202. The injection liquid is cooled and shaped by the circulating cooling system in the mold 202. At this time, a periscope-like lens barrel is formed in the forming grooves 203. Then, by controlling the two cylinders 201, the mold 202 is retracted, and the periscope is formed. The periscope-like lens barrel is located at the outer end of mold 2 403. By starting motor 401, the screw 402 is driven to rotate. At this time, the periscope-like lens barrel, which is attached to the outer end of mold 2 403, will also rotate. Due to the limiting of support rod 301 and limiting plate 503, the rotation of screw 402 and mold 2 403 can drive screw barrel 501 and push plate 502 to move down. Therefore, the periscope-like lens barrel at the outer end of mold 2 403 can be pushed out of the discharge port 101. Thus, this device facilitates the demolding and discharge of cylindrical periscope-like lens barrels, eliminating the need for manual demolding, saving time and effort, and improving the discharge efficiency and production efficiency of periscope-like lens barrels.
[0024] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A periscope-type lens barrel injection mold, comprising a mounting bracket (1), wherein the bottom end of the mounting bracket (1) is provided with a discharge port (101), characterized in that: The mounting bracket (1) has injection molds (2) on its left and right sides, a support component (3) on its top, a rotating component (4) from the top of the support component (3) to the inside of the injection mold (2), and a pusher component (5) on the outer end of the rotating component (4).
2. The injection mold for a periscope-like lens barrel according to claim 1, characterized in that: The injection mold (2) includes two cylinders (201), which are fixedly installed on the left and right sides of the mounting frame (1). The telescopic ends of the two cylinders (201) are fixedly connected to mold one (202), and each mold one (202) has a molding groove (203) on its side.
3. The injection mold for a periscope-like lens barrel according to claim 2, characterized in that: The mounting bracket (1) has two sliding grooves (102) on its inner bottom side. Each mold (202) has a slider (204) fixedly connected to its bottom end. Each slider (204) is slidably connected in each sliding groove (102).
4. The injection mold for a periscope-like lens barrel according to claim 2, characterized in that: The support assembly (3) includes two support rods (301), both of which are fixedly connected to the top of the mounting frame (1), and a limit frame (302) is fixedly connected between the tops of the two support rods (301).
5. The injection mold for a periscope-like lens barrel according to claim 4, characterized in that: The rotating assembly (4) includes a motor (401), which is fixedly installed in the middle of the limiting frame (302). A screw (402) is installed at the output end of the motor (401), and a mold (403) is fixedly connected to the bottom end of the screw (402).
6. The injection mold for a periscope-like lens barrel according to claim 5, characterized in that: The second mold (403) is inserted between the two forming grooves (203).
7. The injection mold for a periscope-like lens barrel according to claim 5, characterized in that: The pusher assembly (5) includes a screw barrel (501), which is threaded to the outer end of the screw rod (402). A pusher plate (502) is fixedly connected to the bottom end of the screw barrel (501). The screw barrel (501) and the pusher plate (502) are both inserted between two forming grooves (203). Two limiting plates (503) are fixedly connected to the top side end of the screw barrel (501). Each limiting plate (503) is respectively sleeved on the outer end of each support rod (301).