Injection molding tool for lens cone

Abstract

The utility model belongs to the field of lens cone processing, and discloses a lens cone injection molding tool which comprises a base, an upper mold and a lower mold, the lower mold is fixedly installed and extends into the base, mold grooves which are transversely arranged at equal intervals are formed in the top of the lower mold, the bottom of the upper mold is provided with mold blocks corresponding to the mold grooves, and the mold blocks are fixedly installed on the base. A lifting assembly for driving the upper mold to lift is arranged on the base, a jacking mechanism for demolding the lens cone is arranged in the base, and the jacking mechanism comprises jacking blocks of which the number is consistent with that of the mold grooves. According to the scheme, the upper mold and the lower mold are respectively provided with a plurality of modules and mold grooves, so that the injection molding of a plurality of lens cones can be simultaneously realized, the working efficiency is improved, and after the lens cones are cooled and molded, the quick demolding of the plurality of lens cones can be simultaneously realized through the jacking mechanism additionally arranged in the base.

Description

Technical Field

[0001] The utility model relates to the field of lens barrel processing, and more specifically, to a lens barrel injection molding tool. Background Art

[0002] The lens barrel usually refers to the hollow cylindrical part of an optical instrument that holds optical elements. The lens barrel can be a part of optical equipment such as telescopes, microscopes, and camera lenses. It is used to fix and protect the lenses and lenses and guide the propagation of light. The lens barrel is usually made of plastic material, with a smooth interior and coated with a special coating to reduce light reflection and scattering, thereby improving the imaging quality of the optical equipment.

[0003] In the process of lens barrel production, the molten plastic needs to be injected into the injection molding tool for stamping, then cooled and solidified, and then the lens barrel is taken out of the injection molding tool to obtain the finished lens barrel. However, the current injection molding tool generally injects one lens barrel at a time, and then processes another one after cooling and solidification. The efficiency is relatively low, and the product in the mold groove is tightly adsorbed to the mold, and the product is not easy to demold and take out, which further reduces the work efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a lens barrel injection molding tool.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A lens barrel injection molding tool, comprising a base, an upper mold and a lower mold, wherein the lower mold is fixedly installed and extends into the base, the top of the lower mold is provided with mold grooves arranged laterally at equal distances, the bottom of the upper mold is provided with a module corresponding to each mold groove, and the base is provided with a lifting component for driving the upper mold to rise and fall;

[0007] A lifting mechanism for demoulding the lens barrel is arranged in the base, and the lifting mechanism includes a number of ejector blocks that is the same as the number of the mold grooves. The inner bottom wall of the mold groove is provided with lifting holes that are adapted to the ejector blocks. The ejector blocks are located in the lifting holes. The bottom of each ejector block is fixedly connected to a ejector rod. A driving component for driving all ejector rods to rise and fall synchronously is arranged in the base.

[0008] As a further description of the above technical solution: the lifting assembly includes a support rod fixedly installed on the outside of the base, a connecting plate is fixedly connected to the support rod, the connecting plate corresponds to the base up and down, and cylinders are fixedly connected on both sides of the bottom of the connecting plate, and the cylinder rod of the cylinder is fixedly connected to the upper mold.

[0009] As a further description of the above technical solution: the driving assembly includes a right-angled trapezoidal block arranged horizontally corresponding to each push rod, the inclined surface of the right-angled trapezoidal block faces upward, and connecting rods are fixedly connected between adjacent right-angled trapezoidal blocks. The top inclined surface of each right-angled trapezoidal block is provided with an inclined groove, and a slider is slidably connected to the inclined groove, and the slider is movably connected to the push rod. An electric telescopic rod fixedly connected to the base is interspersed on the left side of the base, and the cylinder rod of the electric telescopic rod is fixedly connected to the leftmost right-angled trapezoidal block.

[0010] As a further description of the above technical solution: a guide groove is provided on the inner bottom wall of the base, and a guide block is slidably connected to the bottom of each right-angle trapezoidal block, and the guide block is slidably connected to the guide groove.

[0011] As a further description of the above technical solution: a limit plate is arranged inside the base and near the bottom of the lower mold, and a limit hole is respectively opened on the limit plate corresponding to each lifting hole, and the ejector rod is inserted into the limit hole.

[0012] As a further description of the above technical solution: a limiting groove is provided on the outer side of the push rod, a limiting block is slidably connected in the limiting groove, and the limiting block is fixedly connected to the inner wall of the limiting hole.

[0013] As a further description of the above technical solution: a sealing gasket is arranged on the outer side of the top block.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] This solution can realize injection molding of multiple lens barrels at the same time by respectively arranging multiple modules and mold grooves on the upper mold and the lower mold, thereby improving work efficiency. After the lens barrels are cooled and formed, the multiple lens barrels can be quickly demolded at the same time by adding a lifting mechanism in the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the jacking mechanism of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the drive assembly of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the connection between the top rod and the connecting plate of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Base; 2. Upper mold; 3. Lower mold; 4. Mold groove; 5. Lifting assembly; 51. Support rod; 52. Connecting plate; 53. Cylinder; 6. Lifting mechanism; 61. Ejector block; 611. Sealing gasket; 62. Lifting hole; 63. Ejector rod; 64. Driving assembly; 641. Right-angle trapezoidal block; 642. Connecting rod; 643. Inclined groove; 644. Slider; 645. Electric telescopic rod; 7. Guide groove; 8. Guide block; 9. Limiting plate; 10. Limiting hole; 11. Limiting groove; 12. Limiting block; 13. Module. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] See also Figure 1-4 A tooling for injection molding of a lens barrel comprises a base 1, an upper mold 2 and a lower mold 3. The lower mold 3 is fixedly installed and extends into the base 1. The top of the lower mold 3 is provided with mold grooves 4 arranged laterally at equal distances. The bottom of the upper mold 2 is provided with a module 13 corresponding to each mold groove 4. A lifting mechanism 6 for demoulding the lens barrel is provided in the base 1. The lifting mechanism 6 comprises a number of ejector blocks 61 that is the same as the number of mold grooves 4. The inner bottom wall of the mold groove 4 is provided with ejector holes 62 that are adapted to the ejector blocks 61. The ejector blocks 61 are located in the ejector holes 62. The bottom of each ejector block 61 is fixedly connected with an ejector rod 63. A driving assembly 64 for driving all ejector rods 63 to rise and fall synchronously is provided in the base 1.

[0025] This solution can realize injection molding of multiple lens barrels at the same time by respectively arranging multiple modules 13 and mold grooves 4 on the upper mold 2 and the lower mold 3, thereby improving work efficiency;

[0026] After the lens barrel is cooled and formed, the lifting mechanism 6 added in the base 1 can realize the rapid demoulding of multiple lens barrels at the same time;

[0027] The lifting mechanism 6 drives all the ejector rods 63 to rise synchronously through the driving assembly 64, thereby causing the ejector block 61 in the lifting hole 62 to rise, thereby ejecting the finished lens barrel in the mold groove 4, making it convenient to remove the material, easy to operate, and thorough to reduce the waste of resources.

[0028] Specifically, the driving assembly 64 includes a right-angled trapezoidal block 641 horizontally arranged corresponding to each push rod 63, the inclined surface of the right-angled trapezoidal block 641 is upward, and a connecting rod 642 is fixedly connected between adjacent right-angled trapezoidal blocks 641. The top inclined surface of each right-angled trapezoidal block 641 is provided with an inclined groove 643, and a slider 644 is slidably connected to the inclined groove 643. The slider 644 is movably connected to the push rod 63. An electric telescopic rod 645 fixedly connected to it is interspersed on the left side of the base 1, and the cylinder rod of the electric telescopic rod 645 is fixedly connected to the leftmost right-angled trapezoidal block 641.

[0029] The driving assembly 64 drives the right-angled trapezoidal block 641 connected thereto to move horizontally through the extension and retraction of the electric telescopic rod 645, and all other right-angled trapezoidal blocks 641 move synchronously through the connection assistance of the connecting rod 642. When the right-angled trapezoidal block 641 moves, due to the restrictions of the lifting hole 62 and the ejector rod 63 corresponding to the ejector rod 63 in other directions of the ejector rod 63 of the ejector rod 61, the slider 644 moves upward in the inclined groove 643 relative to the right-angled trapezoidal block 641, thereby driving the ejector rod 63 to rise, ejecting the finished injection molded product, and facilitating the removal of the material.

[0030] Among them, a guide groove 7 is opened on the inner bottom wall of the base 1, and the bottom of each right-angle trapezoidal block 641 is slidably connected with a guide block 8, and the guide block 8 is slidably connected to the guide groove 7. Through the guide groove 7 and the guide block 8, the flexibility of the trapezoidal right-angle block 641 during movement can be increased, and at the same time it can play a guiding role.

[0031] Example 2

[0032] See also Figure 1 This embodiment is a further improvement made on the basis of the embodiment 1. Compared with the embodiment 1, the base 1 is provided with a lifting assembly 5 for driving the upper mold 2 to rise and fall; the lifting assembly 5 comprises a support rod 51 fixedly mounted on the outside of the base 1, a connecting plate 52 is fixedly connected to the support rod 51, the connecting plate 52 corresponds to the base 1 up and down, and both sides of the bottom of the connecting plate 52 are fixedly connected with a cylinder 53, and the cylinder rod of the cylinder 53 is fixedly connected to the upper mold 2. The upper mold 2 is driven to rise and fall by the cylinder 53, so as to realize the rapid stamping and injection molding of the mold.

[0033] Example 3

[0034] See also Figure 4 This embodiment is a further improvement made on the basis of embodiment 1 or 2. Compared with embodiment 1 or 2, a limiting plate 9 is provided in the base 1 and near the bottom of the lower mold 3. A limiting hole 10 is provided on the limiting plate 9 corresponding to each jacking hole 62, and the ejector rod 63 is inserted into the limiting hole 10. A limiting groove 11 is provided on the outer side of the ejector rod 63, and a limiting block 12 is slidably connected in the limiting groove 11, and the limiting block 12 is fixedly connected to the inner wall of the limiting hole 10.

[0035] By providing the limiting plate 9, the limiting hole, the limiting block 12 and the limiting groove 11, the downward movement of the top block 61 can be limited, and the top rod 63 can be limited and guided when it is raised or lowered, thereby increasing the stability of the top block 61.

[0036] In addition, a sealing gasket 611 is provided on the outer side of the top block 61 , and the sealing gasket 611 effectively seals the connection between the top block 61 and the lower mold 3 .

[0037] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A lens barrel injection molding tool, comprising a base (1), an upper mold (2) and a lower mold (3), characterized in that: The lower mold (3) is fixedly installed and extends into the base (1); the top of the lower mold (3) is provided with mold grooves (4) arranged laterally at equal distances; the bottom of the upper mold (2) is provided with a module (13) corresponding to each mold groove (4); and the base (1) is provided with a lifting component (5) for driving the upper mold (2) to rise and fall; The base (1) is provided with a lifting mechanism (6) for demoulding the lens barrel. The lifting mechanism (6) comprises a number of lifting blocks (61) that matches the number of the mold grooves (4). Lifting holes (62) that match the lifting blocks (61) are provided on the inner bottom wall of the mold grooves (4). The lifting blocks (61) are located in the lifting holes (62). The bottom of each of the lifting blocks (61) is fixedly connected to a lifting rod (63). The base (1) is provided with a driving assembly (64) that drives all the lifting rods (63) to rise and fall synchronously.

2. The lens barrel injection molding tool according to claim 1, characterized in that: The lifting assembly (5) comprises a support rod (51) fixedly mounted on the outside of the base (1), a connecting plate (52) fixedly connected to the support rod (51), the connecting plate (52) corresponding to the base (1) up and down, a cylinder (53) fixedly connected to both sides of the bottom of the connecting plate (52), and a cylinder rod of the cylinder (53) fixedly connected to the upper mold (2).

3. The lens barrel injection molding tool according to claim 1, characterized in that: The driving assembly (64) comprises a right-angled trapezoidal block (641) arranged transversely corresponding to each push rod (63), the inclined surface of the right-angled trapezoidal block (641) faces upward, and a connecting rod (642) is fixedly connected between adjacent right-angled trapezoidal blocks (641). The top inclined surface of each right-angled trapezoidal block (641) is provided with an inclined groove (643), and a slider (644) is slidably connected to the inclined groove (643). The slider (644) is movably connected to the push rod (63). An electric telescopic rod (645) fixedly connected to the left side of the base (1) is inserted through the base (1), and the cylinder rod of the electric telescopic rod (645) is fixedly connected to the leftmost right-angled trapezoidal block (641).

4. The lens barrel injection molding tool according to claim 3, characterized in that: A guide groove (7) is provided on the inner bottom wall of the base (1), and a guide block (8) is slidably connected to the bottom of each right-angle trapezoidal block (641), and the guide block (8) is slidably connected to the guide groove (7).

5. The lens barrel injection molding tool according to claim 3, characterized in that: A limiting plate (9) is arranged inside the base (1) and near the bottom of the lower mold (3), and a limiting hole (10) is respectively provided on the limiting plate (9) corresponding to each lifting hole (62), and the ejector rod (63) is inserted into the limiting hole (10).

6. The lens barrel injection molding tool according to claim 5, characterized in that: A limiting groove (11) is provided on the outer side of the push rod (63), a limiting block (12) is slidably connected in the limiting groove (11), and the limiting block (12) is fixedly connected to the inner wall of the limiting hole (10).

7. The lens barrel injection molding tool according to claim 1, characterized in that: A sealing gasket (611) is provided on the outer side of the top block (61).

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