Die opening device of lens cone die

Abstract

The utility model relates to a mold opening device of a lens cone mold. The mold opening device comprises a base, a lower module and a mold opening driving assembly, the base comprises a supporting plate; the lower die set comprises a bearing plate, a lower die plate, a cavity forming assembly and a displacement conversion assembly, a horizontal sliding groove is formed in the upper portion of the lower die plate, the cavity forming assembly comprises a cavity sliding block set, and the cavity sliding block set comprises two cavity sliding blocks; the displacement conversion assembly comprises an inclined plane guide group, the inclined plane guide group comprises two end part fixing blocks, guide inclined planes are formed by the two end part fixing blocks, a trapezoidal space with a wide upper part and a narrow lower part is formed between the two guide inclined planes, and the two cavity sliding blocks are respectively connected to the two guide inclined planes in a sliding manner; the mold opening driving assembly comprises a driving plate and a plurality of ejector rods, the driving plate is arranged below the supporting plate, the lower ends of the ejector rods are connected with the driving plate, and the upper ends of the ejector rods are connected with the lower mold plate; according to the mold opening device provided by the invention, the displacement space of the cavity sliding block is effectively saved, the length of the runner is reduced, and the use of injection molding materials and mold materials is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of manufacturing equipment for lens barrel products, and specifically to a mold opening device for a lens barrel mold. Background Technology

[0002] An optical lens includes a lens barrel and a lens assembly installed inside the lens barrel. The lens assembly includes multiple lenses. Light enters from the object side of the lens barrel, passes through the lens assembly, and then enters the photosensitive chip through the image side of the lens barrel, thereby achieving image formation. Typically, the lens barrel is injection molded into a plastic plate product with the lens barrel connected to it.

[0003] In existing technology, after the plastic sheet product is formed inside the mold, it needs to be opened to expose it. Generally, the lens barrel is formed in a cavity formed by the cooperation of two toothed plates. During the process of removing the plastic sheet product, the two toothed plates need to be opened relative to each other. Currently, a horizontal slide is used to allow the two toothed plates to slide open relative to each other during mold opening. This requires sufficient lateral displacement space to be reserved at both ends of the toothed plates. Since the toothed plates are fixed at the end of the slider and the cavity is generally designed at the end of the runner, the runner length in existing technology is very long, which makes the overall size of the mold larger, resulting in an increase in the amount of mold material and injection molding material used, and an increase in cost. Improvement is urgently needed. Utility Model Content

[0004] Based on the above description, this utility model provides a mold opening device for a lens barrel mold, which achieves a reduction in flow channel length and a saving of mold material through ingenious structural design.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A mold opening device for a lens barrel mold includes a base, a lower mold assembly, and a mold opening drive assembly;

[0007] The base includes a support plate;

[0008] The lower module includes a support plate, a lower template, a cavity forming component, and a displacement conversion component. The support plate and the lower template are stacked sequentially on top of the support plate. At least one horizontal groove is formed above the lower template. The cavity forming component includes cavity slider groups corresponding to the horizontal grooves. Each cavity slider group includes two cavity sliders slidably disposed in the corresponding horizontal groove. The two cavity sliders located in the same horizontal groove can cooperate to form a product cavity. The displacement conversion component includes inclined guide groups corresponding to the horizontal grooves. The inclined guide groups include two end fixing blocks fixedly disposed on the support plate, and the two end fixing blocks are respectively located at both ends of the horizontal groove. Guide inclined surfaces are formed on the opposite sides of the two end fixing blocks. A trapezoidal space wider at the top and narrower at the bottom is formed between the two guide inclined surfaces. The two cavity sliders are slidably connected to the two guide inclined surfaces.

[0009] The mold opening drive assembly includes a drive plate and multiple push rods. The drive plate is located below the support plate. The lower end of each push rod is connected to the drive plate, and the upper end of each push rod passes through the support plate and the bearing plate in sequence before connecting to the lower mold plate.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0011] The technical solution of this application uses two cavity sliders to form a product cavity. The cavity sliders are slidably connected to two guide slopes. Since a trapezoidal space with a wider top and a narrower bottom is formed between the two guide slopes, when the ejector rod pushes the lower mold plate to rise, the cavity sliders move along the slopes and open with each other to open the mold. The mold opening device provided by this application effectively ensures that the cavity sliders can move laterally and save displacement space through two fixed end blocks, which can reduce the length of the runner and reduce the use of injection molding material and mold material.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, four horizontal grooves are formed above the lower template, and the four horizontal grooves are evenly distributed in a radial pattern around the center of the lower template along the extension direction. The number of inclined guide groups is four.

[0014] Furthermore, the displacement conversion assembly also includes a fixed column, which is fixed to the support plate. The fixed column passes through the lower template and its upper end extends above the lower template. Four horizontal sliding grooves are evenly distributed on the outside of the fixed column. In each inclined guide group, the end fixing block near the middle is fixed to the side of the fixed column.

[0015] Furthermore, each of the cavity sliders includes a sliding block and two toothed plates. The sliding block and the corresponding end fixing block are slidably connected. The two toothed plates are fixed on both sides of the sliding block. A cavity groove is formed on the side of the toothed plate near the other end fixing block. The cavity grooves of the two opposing toothed plates cooperate to form a cavity.

[0016] Furthermore, the sliding block and the corresponding end fixing block are limited by a dovetail groove, so that the sliding block slides along the guide slope on the corresponding end fixing block.

[0017] Furthermore, each of the sliding blocks has mounting grooves on both sides, the toothed plate is installed in the mounting grooves, and a pressure block is provided at one end of the toothed plate near the corresponding end fixing block.

[0018] Furthermore, limiting pressure strips are formed on both sides of the horizontal slide groove. The limiting pressure strips are arranged along the length direction of the horizontal slide groove, and one side of the limiting pressure strip extends above the sliding block to restrict the sliding block from sliding horizontally within the horizontal slide groove.

[0019] Furthermore, the base also includes a base plate and a mold foot, the mold foot is vertically fixed to the upper end of the mold foot, the drive plate is disposed between the base plate and the support plate, and the lower end surface of the drive plate is connected to a shock-absorbing pad.

[0020] Furthermore, the base also includes a guide post, which is vertically fixed to the upper end of the mold foot, and the support plate and the lower template are both movably fitted onto the guide post. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a mold opening device for a lens barrel mold provided in an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the structure of the lower template in an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the sliding block structure in an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the tooth plate structure in an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the cavity slider in an embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the end fixing block in an embodiment of this application;

[0027] Figure 7This is a schematic diagram of the combination of the end fixing block and the cavity slider in an embodiment of this application;

[0028] Figure 8 This is a top view of an embodiment of the present application.

[0029] Figure 9 This is a schematic diagram showing the connection between the mold opening drive component and the lower template in an embodiment of this application. Detailed Implementation

[0030] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0032] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "under" or "below" of other elements or features will be oriented "over" of other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0033] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0034] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0035] As shown in the figure, this application embodiment provides a mold opening device for a lens barrel mold, which includes a base 10, a lower module 20 and a mold opening drive assembly 30.

[0036] The base 10 includes a base plate 11, mold feet 1, a support plate 13 and guide posts 14. The mold feet 12 are vertically fixed to the upper end of the base plate 11 in a rectangular vertices arrangement. The support plate 13 is fixed to the upper end of the four mold feet 12. The guide posts 14 are vertically fixed to the upper end of the support plate 12.

[0037] The lower module 20 includes a support plate 21, a lower template 22, a cavity forming component 23, and a displacement conversion component 24.

[0038] The support plate 21 and the lower template 22 are stacked on top of the support plate 13. At least one horizontal groove 22a is formed on the upper part of the lower template 22. In this embodiment, four horizontal grooves 22a are formed on the upper part of the lower template 22. The four horizontal grooves 22a are evenly distributed in a radial pattern around the middle part of the lower template 22 along the elongation direction. Preferably, the injection port is located in the middle part of the lower template 22, so that the process effect of producing up to four runners in one mold at the same time can be achieved.

[0039] The cavity forming component 23 includes cavity slider groups that correspond one-to-one with the horizontal slide grooves 22a. That is, the cavity forming component 23 includes four cavity slider groups. Each cavity slider group includes two cavity sliders 231 that are slidably disposed in the corresponding horizontal slide grooves 22a. The two cavity sliders 231 located in the same horizontal slide groove 22a can cooperate to form the product cavity.

[0040] The displacement conversion assembly 24 includes inclined guide groups corresponding one-to-one with the horizontal slide 22a. The inclined guide group includes two end fixing blocks 241 fixedly disposed on the support plate 21 and the two end fixing blocks 241 are respectively located at both ends of the horizontal slide 22a. The opposite sides of the two end fixing blocks 241 form guide inclined surfaces 241a. A trapezoidal space with a wider top and a narrower bottom is formed between the two guide inclined surfaces 241a. The two cavity sliders 231 are slidably connected to the two guide inclined surfaces 241a respectively.

[0041] Combination Figure 1 and Figure 9As shown, the mold opening drive assembly 30 includes a drive plate 31 and multiple push rods 32. The drive plate 31 is located below the support plate 13. Preferably, the drive plate 31 is located between the support plate 13 and the bottom plate 11. The lower end of the push rod 32 is connected to the drive plate 31, and the upper end of the push rod 32 passes through the support plate 13 and the support plate 21 in sequence and is connected to the lower template 22.

[0042] In a preferred embodiment of this application, combined with Figure 2-8 As shown, the displacement conversion assembly 24 also includes a fixed column 242, which is fixed to the support plate 21. The fixed column 242 passes through the lower template 22 and its upper end extends above the lower template 22. Four horizontal sliding grooves 22a are evenly distributed on the outside of the fixed column 242. The end fixing block 241 near the middle of each inclined guide group is fixed to the side of the fixed column 242 by bolts.

[0043] By fixing the end fixing block 241 near the middle to the side of the fixing post 242, the two cavity sliders 231 located on the same straight line and near the inner side do not need to make clearance space. The horizontal slide 22a can be set close to the side of the fixing post 242, effectively reducing the flow channel length in the length direction of the horizontal slide 22a.

[0044] Preferred, according to Figure 1 and combined Figure 2-5 As shown, each cavity slider 231 includes a sliding block 2311 and two toothed plates 2312. The sliding block 2311 and the corresponding end fixing block 241 are slidably connected. The two toothed plates 2312 are fixed in the limiting grooves 231a on both sides of the sliding block 2311. A cavity groove 231b is formed on the side of the toothed plate 2312 near the other end fixing block 241. The cavity grooves 231b of the two opposing toothed plates 2312 cooperate to form a cavity.

[0045] In this embodiment, the toothed plate 2312 is disposed on both sides of the sliding block 2311. Compared with the prior art where the toothed plate is disposed at the end of the sliding block, the length of the flow channel in the length direction of the horizontal groove 22a is shortened.

[0046] In the embodiments of this application, combined with Figure 3-7 As shown, the sliding block 2311 and the corresponding end fixing block 241 are limited by the dovetail groove, so that the sliding block 2311 slides on the corresponding end fixing block 241 along the guide slope 241a.

[0047] In order to ensure that the sliding block 2311 only slides horizontally relative to the lower template 22, limiting pressure strips 221 are formed on both sides of the horizontal slide groove 22a. The limiting pressure strips 221 are set along the length direction of the horizontal slide groove 22a, and one side of the limiting pressure strips 221 extends above the sliding block 2311 to restrict the sliding block 2311 from sliding horizontally within the horizontal slide groove 22a.

[0048] In order to ensure the structural strength of the lower template 22, a support plate 25 is fixedly installed at the lower end of the lower template 22.

[0049] The technical solution of this application ensures that the cavity slider can be moved laterally to achieve mold opening, while the redesigned layout effectively saves displacement space, reduces the runner length in the horizontal slide length direction, and reduces the use of injection molding material and mold material.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold opening device for a lens barrel mold, characterized in that, Includes base, lower module, and mold opening drive assembly; The base includes a support plate; The lower module includes a support plate, a lower template, a cavity forming component, and a displacement conversion component. The support plate and the lower template are stacked sequentially on top of the support plate. At least one horizontal groove is formed above the lower template. The cavity forming component includes cavity slider groups corresponding to the horizontal grooves. Each cavity slider group includes two cavity sliders slidably disposed in the corresponding horizontal groove. The two cavity sliders located in the same horizontal groove can cooperate to form a product cavity. The displacement conversion component includes inclined guide groups corresponding to the horizontal grooves. The inclined guide groups include two end fixing blocks fixedly disposed on the support plate, and the two end fixing blocks are respectively located at both ends of the horizontal groove. Guide inclined surfaces are formed on the opposite sides of the two end fixing blocks. A trapezoidal space wider at the top and narrower at the bottom is formed between the two guide inclined surfaces. The two cavity sliders are slidably connected to the two guide inclined surfaces. The mold opening drive assembly includes a drive plate and multiple push rods. The drive plate is located below the support plate. The lower end of each push rod is connected to the drive plate, and the upper end of each push rod passes through the support plate and the bearing plate in sequence before connecting to the lower mold plate.

2. The mold opening device for the lens barrel mold according to claim 1, characterized in that, Four horizontal grooves are formed above the lower template. The four horizontal grooves are evenly distributed in a radial pattern around the center of the lower template along the extension direction. The number of inclined guide groups is four.

3. The mold opening device for the lens barrel mold according to claim 2, characterized in that, The displacement conversion assembly further includes a fixed column, which is fixed to the support plate. The fixed column passes through the lower template and its upper end extends above the lower template. The four horizontal sliding grooves are evenly distributed on the outside of the fixed column. The end fixing block near the middle of each inclined guide group is fixed to the side of the fixed column.

4. The mold opening device for the lens barrel mold according to claim 1, characterized in that, Each of the cavity sliders includes a sliding block and two toothed plates. The sliding block and the corresponding end fixing block are slidably connected. The two toothed plates are fixed on both sides of the sliding block. A cavity groove is formed on the side of the toothed plate near the other end fixing block. The cavity grooves of the two opposing toothed plates cooperate to form a cavity.

5. The mold opening device for the lens barrel mold according to claim 4, characterized in that, The sliding block and the corresponding end fixing block are limited by the dovetail groove, so that the sliding block slides along the guide slope on the corresponding end fixing block.

6. The mold opening device for the lens barrel mold according to claim 4, characterized in that, Each of the sliding blocks has mounting grooves on both sides, the toothed plate is installed in the mounting grooves, and a pressure block is provided at one end of the toothed plate near the corresponding end fixing block.

7. The mold opening device for the lens barrel mold according to claim 4, characterized in that, Limiting strips are formed on both sides of the horizontal slide groove. The limiting strips are arranged along the length direction of the horizontal slide groove, and one side of the limiting strip extends above the sliding block to restrict the sliding block from sliding horizontally within the horizontal slide groove.

8. The mold opening device for the lens barrel mold according to claim 1, characterized in that, The base also includes a base plate and a mold foot. The mold foot is vertically fixed to the upper end of the mold foot. The drive plate is disposed between the base plate and the support plate. The lower end surface of the drive plate is connected to a shock-absorbing pad.

9. The mold opening device for the lens barrel mold according to claim 8, characterized in that, The base also includes a guide post, which is vertically fixed to the upper end of the mold foot. The support plate and the lower template are both movably fitted onto the guide post.

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