A barrel mold

Abstract

The invention provides a lens barrel mold. The lens barrel mold comprises a movable mold plate and a fixed mold plate; the movable mold plate is provided with a main mold core, two slide block pedestals and two slide blocks; the fixed mold plate is provided with an injection molding block and four inclined guide pillars; the two slide block pedestals are respectively arranged at two sides of the main mold core, each slide block pedestal is in slide fit with one slide block, and the slide blocks are provided with inclined holes in one-to-one correspondence to the inclined guide pillars; a plurality of separated sub-tooth boards are installed on each slide block, each sub-tooth board comprises a screw tooth which internally provided with an outside thread of the lens barrel, and two screw teeth are spliced to form a lens barrel formation part; and each slide block and the sub-tooth boards are connected through at least one fixed block which is provided with a bayonet, and the main core is provided with a snapping block which can be embedded into the bayonet. The lens barrel die provided by the invention realizes free adjustment of the number and positions of the sub-tooth boards and mixed production of sub-tooth boards of different specifications, improves flexibility of production and enhances mold precision.

Description

technical field [0001] The invention relates to a lens barrel mold. Background technique [0002] At present, with the development of mobile phone technology and portable photography equipment, the public's demand for portable devices such as smart phones and sports cameras is increasing day by day, which prompts the continuous updating of the production technology of the camera lens group. The lens barrel is an important part of the camera lens group. Improving the lens barrel The production volume and production quality are particularly important. The traditional lens barrel mold uses a whole piece of material, and several threads corresponding to the lens barrel threads are processed on it. The long-term use of the mold will cause deformation, which will cause the torque of the thread to be generated. Changes will cause the produced lens barrel to fail to meet the standard, so it is necessary to regularly check the screw torque and carry out maintenance. Once one of the s...

AI Technical Summary

Problems solved by technology

[0002] At present, with the development of mobile phone technology and portable photography equipment, the public's demand for portable devices such as smart phones and sports cameras is increasing day by day, which prompts the continuous updating of the production technology of the camera lens group. The lens barrel is an important part of the camera lens group. Improving the lens barrel The production volume and production quality are particularly important. The traditional lens barrel mold uses a whole piece of material, and several threads corresponding to the lens barrel threads are processed on it. The long-term use of the mold will cause deformation, which will cause the torque of the thread to be generated. Changes will cause the produced lens barrel to fail to meet the standard, so it is necessary to regularly check the screw torque and carry out maintenance. Once one of the screw reaches the maintenance limit, in order to maintain production, the entire mold can only be replaced. Although the mold processing is simple, it will substantially cause a great waste of production

[0003] In addition, the traditional tooth plate lens barrel mold uses the method of fixing two half-open tooth plates in the mold to complete the fixation of the mold. Each tooth plate is provided with a plurality of semi-cylindrical grooves (that is, screw teeth). , Two tooth blocks are spliced ​​along the screw teeth to form a plurality of lens barrel forming parts. When fixing, each tooth block is fixed with only one screw. Since the mold needs to be replaced and repaired frequently to ensure the accuracy of lens barrel processing and the finished product Therefore, the disassembly of the mold becomes frequent. Frequent disassembly will cause the position of each tooth plate to deviate from the original position, which will cause a decrease in machining accuracy and a decrease in yield.

Images