Molding insert and mold based on LED optical element

Abstract

The utility model provides a forming insert based on an LED optical part and a mold. The molding insert based on the LED optical element is used for being mounted on a front mold core on a fixed mold plate. A hanging table part is formed at one end of the forming insert, a movable penetrating part is formed at the other end of the forming insert, the movable penetrating part is used for being detachably mounted in an insert positioning hole of a front mold core, and a grain forming area is formed at the end part of the movable penetrating part; when the movable mold plate and the fixed mold plate are closed, the front mold core, the line forming area and the rear mold core jointly define a flash lamp cover forming cavity. The forming insert can be independently transported and clamped and positioned on a high-precision lathe, the grain forming area is efficiently machined, it is ensured that the grain forming area can meet the qualified machining precision requirement, the problem that an integral movable mold plate and an integral fixed mold plate are not beneficial to positioning and clamping is effectively solved, and therefore the machining efficiency of the forming insert is improved at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of mold processing, in particular to a molding insert and a mold based on LED optical parts. Background Art

[0002] Injection molding is the process of injecting plastic liquid into the molding cavity of an injection mold through an injection molding machine, and finally allowing the filled plastic liquid to complete cooling and molding, thereby producing injection molded products with certain shape, structure and size requirements.

[0003] In traditional injection molds, half of the molding cavity is generally processed on the movable mold plate of the injection mold along the parting surface of the injection molded product, and the other half of the molding cavity is processed on the fixed mold plate of the injection mold, that is, the movable mold plate and half of the molding cavity and the fixed mold plate and the other half of the molding cavity are all integral.

[0004] Although the assembly method of the integral movable platen and fixed platen is relatively simple, in the process of processing the molding cavity, the movable platen and the fixed platen need to be transported, clamped, positioned and processed as a whole, which directly leads to the molding cavity processing process being cumbersome and heavy, reducing the processing efficiency. Moreover, the molding cavity processing requirements are relatively high, especially for injection molding products with small volume and relatively fine structural features, such as common LED optical parts, specifically the flash cover in the flash lens module of a smart phone or digital camera.

[0005] At present, there are two ways to process the molding cavity:

[0006] 1) Although the molding cavity of the integral movable and fixed templates can be processed by traditional CNC machining and EDM, it is difficult to achieve the qualified machining accuracy requirements for the structural features of the Fresnel pattern on the flash lamp cover;

[0007] 2) The use of high-precision lathes can meet the processing requirements for the structural characteristics of the Fresnel pattern, but due to the increase in the volume of the integral movable and fixed templates, it is not conducive to the positioning and clamping of the integral movable and fixed templates, as well as the improvement of processing efficiency.

[0008] Therefore, how to efficiently and conveniently process the corresponding molding cavity according to the structural characteristics of the Fresnel patterns existing in the flash lamp cover has become an urgent problem that needs to be solved. Utility Model Content

[0009] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a molding insert and a mold based on LED optical parts, which can efficiently and conveniently process the corresponding molding cavity according to the structural characteristics of the Fresnel patterns existing in the flash lamp cover.

[0010] The purpose of this utility model is achieved through the following technical solutions:

[0011] A molding insert based on an LED optical component, used for mounting on a front mold core on a fixed mold plate, wherein a hanging platform portion is formed at one end of the molding insert, and a movable penetration portion is formed at the other end of the molding insert, wherein the movable penetration portion is used for being detachably mounted on an insert positioning hole of the front mold core, and a texture molding area is formed at the end of the movable penetration portion;

[0012] When the movable mold plate is molded with the fixed mold plate, the front mold core, the texture forming area and the rear mold core together form a flash lamp cover forming cavity.

[0013] In one embodiment, the molding insert is an integrally molded structure.

[0014] In one embodiment, the diameter of the hanging platform portion is greater than the diameter of the movable penetration portion.

[0015] In one embodiment, the difference between the diameter of the hanging platform portion and the diameter of the movable penetration portion is greater than 8 mm.

[0016] In one of the embodiments, the hanging platform portion is formed with an anti-rotation straight edge portion, and the anti-rotation straight edge portion is used to position in a hanging platform groove of the front mold core that is connected to the insert positioning hole.

[0017] In one of the embodiments, a threaded connection hole is further provided on the end surface of the hanging platform portion, and the threaded connection hole is used to position it on the fixed surface of the fixed machine base of the high-precision lathe when processing the texture forming area.

[0018] A mold, comprising a fixed mold plate, a movable mold plate and any one of the above-mentioned molding inserts based on LED optical components;

[0019] The fixed template is arranged opposite to the movable template, and the movable template is used to move toward the fixed template when the mold is closed. The front mold core is provided with an insert positioning hole, and the movable penetration part is installed in the insert positioning hole.

[0020] In one of the embodiments, the front mold core is provided with a plurality of exhaust grooves along the parting surface, and one end of each exhaust groove is connected to the flash lamp cover molding cavity.

[0021] In one of the embodiments, a cooling water transport groove is provided on the end surface of the hanging platform portion, and the distance between the bottom of the cooling water transport groove and the wall thickness of the texture forming area is less than 10 mm.

[0022] In one of the embodiments, a sealing surface is further formed at the end of the movable penetration portion, and the sealing surface abuts against the cavity wall of the rear mold core when the mold is closed.

[0023] Compared with the prior art, the utility model has at least the following advantages:

[0024] The molding insert can be transported and clamped separately on a high-precision lathe, and the texture molding area can be efficiently processed to ensure that the texture molding area can meet the qualified processing accuracy requirements, effectively solving the problem that the integral movable and fixed templates are not conducive to positioning and clamping, thereby improving the processing efficiency of the molding insert at the same time; after completing the processing of the texture molding area, through the hanging platform part at one end of the molding insert, and installing the movable penetration part in the insert positioning hole of the front mold core, the molding insert and the front mold core become a reliable assembled structure, ensuring the molding quality of the Fresnel pattern of the flash lamp cover in the flash lamp cover molding cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a molding insert based on an LED optical component in an implementation;

[0027] Figure 2 for Figure 1 Another structural schematic diagram of a molding insert based on an LED optical component is shown;

[0028] Figure 3 It is a schematic diagram of the structure explosion of the front mold core and the rear mold core of the mold in another embodiment;

[0029] Figure 4 A schematic structural diagram of a front mold core of a mold in another embodiment;

[0030] Figure 5 It is an exploded schematic diagram of the fixed machine base, circular tray and molding insert structure;

[0031] Figure 6 It is a schematic diagram of the half-section structure of the fixed machine base;

[0032] Figure 7 This is a physical picture of the high-precision lathe. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] The present invention provides a front mold core in which a molding insert based on an LED optical component is installed on a fixed mold plate, wherein a hanging platform portion is formed at one end of the molding insert, and a movable penetration portion is formed at the other end of the molding insert, wherein the movable penetration portion is used for detachably installing the insert positioning hole of the front mold core, and a texture molding area is formed at the end of the movable penetration portion; when the movable mold plate is molded with the fixed mold plate, the front mold core, the texture molding area and the rear mold core jointly form a flash lamp cover molding cavity.

[0037] See also Figures 1 to 7 In order to better understand the molding insert 10 based on the LED optical component of the present application, the molding insert 10 based on the LED optical component is further explained below:

[0038] In one embodiment, a molding insert 10 based on an LED optical component is installed on a front mold core 200 on a fixed mold plate, a hanging platform portion 110 is formed at one end of the molding insert 100, and a movable penetration portion 120 is formed at the other end of the molding insert 100, the movable penetration portion 120 is used for detachably installing an insert positioning hole 201 of the front mold core 200, and a texture forming area 130 is formed at the end of the movable penetration portion 120; when the movable mold plate is molded with the fixed mold plate, the front mold core 200, the texture forming area 130 and the rear mold core 300 together form a flash lamp cover molding cavity (not shown).

[0039] In the present embodiment, the molding insert 100 can be independently transported and clamped on a high-precision lathe, and the texture forming area 130 can be efficiently processed, ensuring that the texture forming area 130 can meet the qualified processing accuracy requirements, effectively solving the problem that the integral movable and fixed templates are not conducive to positioning and clamping, thereby improving the processing efficiency of the molding insert 100 at the same time; after completing the processing of the texture forming area 130, through the hanging platform part 110 at one end of the molding insert 100, and the movable penetration part 120 is installed in the insert positioning hole 201 of the front mold core 200, the molding insert 100 and the front mold core 200 become a reliably assembled structure, ensuring the molding quality of the Fresnel pattern of the flash lamp cover in the flash lamp cover molding cavity (not shown).

[0040] like Figure 2 and Figure 4 As shown, in one embodiment, the molding insert 100 is an integrated molding structure. It is understandable that when the molding insert 100 is assembled with the front mold core 200 and then the front mold core 200 is installed on the fixed mold plate, the pattern molding area 130 can have a good structural strength to support the molding pressure in the flash lamp cover molding cavity (not shown) when the movable mold plate and the fixed mold plate are molded.

[0041] like Figure 1 and Figure 4 As shown, in one embodiment, the diameter of the hanging platform portion 110 is greater than the diameter of the movable penetration portion 120. In one embodiment, the difference between the diameter of the hanging platform portion 110 and the diameter of the movable penetration portion 120 is greater than 8 mm. In one embodiment, the hanging platform portion 110 is formed with an anti-rotation straight edge portion 1110, and the anti-rotation straight edge portion 1110 is used to position in the hanging platform sink groove 202 of the front mold core 200 connected to the insert positioning hole 201.

[0042] It can be understood that by installing the movable penetration portion 120 of the molding insert 100 in the insert positioning hole 201 of the front mold core 200 and matching the hanging platform portion 110 in the hanging platform groove 202, the installation or disassembly of the movable penetration portion 120 of the molding insert 100 and the insert positioning hole 201 is facilitated.

[0043] like Figure 1 and Figure 7 As shown, in one embodiment, the end surface of the hanging platform portion 110 is further provided with a threaded connection hole 1102, and the threaded connection hole 1102 is used to be positioned on the fixed surface of the fixed base of the high-precision lathe when processing the texture forming area 130. It can be understood that in this embodiment, by using a circular tray (such as Figure 5) is provided on the surface of the molding insert 100, and the threaded end of the screw is passed through the connecting through hole and connected to the threaded connecting hole 1102, so that the molding insert 100 is positioned and installed on the fixed surface of the fixed machine base of the high-precision lathe, so as to improve the installation and processing efficiency of the molding insert 100.

[0044] It should be noted that if Figure 6 and Figure 7 As shown, an annular adsorption gas groove is provided on the fixed surface of the fixed machine base of the high precision lathe, and there are multiple annular adsorption gas grooves. The bottom of each annular adsorption gas groove is also connected to the corresponding branch airway. The multiple branch airways are all connected to one end of the main airway, and the other end of the main airway is connected to the air source system.

[0045] It can be understood that in this embodiment, the molding insert 100 can be first locked to one side of the circular tray adjacent to the tool head of the engraving tool seat of the high-precision lathe, and the other side of the circular tray is covered with the annular adsorption gas groove, so that the main airway and multiple branch airways are controlled by the air source system, so that the annular adsorption gas groove forms a closed negative pressure, and the circular tray and the molding insert 100 are more firmly installed on the fixed surface of the fixed machine base of the high-precision lathe, thereby improving the installation and processing efficiency of the molding insert 100.

[0046] It should be noted that if Figure 5 The solid arrow shown is the direction of gas flow in one of the bronchial passages when multiple annular adsorption gas grooves form negative pressure adsorption to fix the fastening chassis.

[0047] See also Figures 1 to 7 The present application also provides a mold, including a fixed mold plate, a movable mold plate and a molding insert 10 based on LED optical components as described in any of the above embodiments.

[0048] The fixed template is arranged opposite to the movable template, and the movable template is used to move towards the fixed template when the mold is closed. The front mold core 200 is provided with an insert positioning hole 201, and the movable penetration portion 120 is installed in the insert positioning hole 201. The front mold core 200 is also provided with a hanging platform groove 202 connected to the insert positioning hole 201, and the anti-rotation straight edge portion 1110 matches the hanging platform groove 202.

[0049] In this embodiment, the molding insert 100 can be independently transported and clamped and positioned on a high-precision lathe, and the texture forming area 130 can be efficiently processed; after the texture forming area 130 is processed, the anti-rotation straight edge 1110 is matched with the hanging table groove 202 to position the anti-rotation straight edge 1110 and limit the rotation of the movable penetration portion 120 relative to the insert positioning hole 201, so that the molding insert 100 and the front mold core 200 become a reliable assembled structure, so as to ensure the molding quality of the Fresnel pattern of the flash lamp cover in the flash lamp cover molding cavity (not shown).

[0050] It should be noted that in this embodiment, the number of molding inserts 100 is two, and the number of insert positioning holes 201 opened in the corresponding front mold core 200 is also two. In other embodiments, the number of molding inserts 100 and the number of insert positioning holes 201 can be one or more.

[0051] like Figure 3 and Figure 4 As shown, in one embodiment, the front mold core 200 is provided with a plurality of exhaust grooves along the parting surface, and one end of each exhaust groove is connected to the flash lamp cover molding cavity (not shown). It can be understood that by providing a plurality of exhaust grooves, when the injection molding machine injects plastic liquid into the flash lamp cover molding cavity (not shown), it is ensured that the gas in the flash lamp cover molding cavity (not shown) can be discharged in time, thereby ensuring the molding quality of the Fresnel pattern of the flash lamp cover.

[0052] like Figure 1 and Figure 4 As shown, in one embodiment, a cooling water transport groove 1103 is provided on the end surface of the hanging platform 110, and the bottom of the cooling water transport groove 1103 is less than 10 mm away from the wall thickness of the texture forming area 130. It can be understood that the inlet cooling water channel (not shown) and the outlet cooling water channel (not shown) on the fixed mold plate are respectively connected to the cooling water transport groove 1103, so that the cooling water in the cooling system can fully and reliably exchange heat with the plastic liquid in the flash lamp cover molding cavity (not shown) through the cooling water transport groove 1103, so as to ensure the molding quality of the Fresnel pattern of the flash lamp cover corresponding to the texture forming area 130.

[0053] It should be noted that sealing gaskets (not shown) are provided at the connection points where the inlet cooling water channel (not shown) and the outlet cooling water channel (not shown) are respectively connected to the cooling water transport trough 1103, and sealing butter is also applied along the sealing gaskets (not shown) to improve the sealing and leak-proof effect of the connection points.

[0054] like Figure 1 and Figure 2 As shown, in one embodiment, the end of the movable penetration portion 120 is also formed with a sealing surface 1210, and the sealing surface 1210 abuts against the cavity wall of the rear mold core 300 when the mold is closed. It can be understood that the sealing surface 1210 abuts against the cavity wall of the rear mold core 300 and is also provided with an exhaust groove (not shown) to ensure the molding quality of the injection molded product and effectively avoid the problem of air entrapment in the injection molded product.

[0055] Compared with the prior art, the utility model has at least the following advantages:

[0056] The molding insert can be transported and clamped separately on a high-precision lathe, and the texture molding area can be efficiently processed to ensure that the texture molding area can meet the qualified processing accuracy requirements, effectively solving the problem that the integral movable and fixed templates are not conducive to positioning and clamping, thereby improving the processing efficiency of the molding insert at the same time; after completing the processing of the texture molding area, through the hanging platform part at one end of the molding insert, and installing the movable penetration part in the insert positioning hole of the front mold core, the molding insert and the front mold core become a reliable assembled structure, ensuring the molding quality of the Fresnel pattern of the flash lamp cover in the flash lamp cover molding cavity.

[0057] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A molding insert based on LED optical components, used for mounting on a front mold core on a fixed mold plate, characterized in that: A hanging platform is formed at one end of the molding insert, and a movable penetration portion is formed at the other end of the molding insert. The movable penetration portion is used for detachably mounting on the insert positioning hole of the front mold core, and a texture molding area is formed at the end of the movable penetration portion; When the movable mold plate is molded with the fixed mold plate, the front mold core, the texture forming area and the rear mold core together form a flash lamp cover forming cavity.

2. The LED optical component-based molding insert according to claim 1, characterized in that: The molding insert is an integrally molded structure.

3. The LED optical component-based molding insert according to claim 1, characterized in that: The diameter of the hanging platform portion is greater than the diameter of the movable penetration portion.

4. The LED optical component-based molding insert according to claim 3, characterized in that: The difference between the diameter of the hanging platform portion and the diameter of the movable penetration portion is greater than 8 mm.

5. The LED optical component-based molding insert according to claim 1, characterized in that: The hanging platform portion is formed with an anti-rotation straight edge portion, and the anti-rotation straight edge portion is used for positioning in the hanging platform sink groove of the front mold core which is connected to the insert positioning hole.

6. The LED optical component-based molding insert according to claim 1, characterized in that: The end surface of the hanging platform portion is also provided with a threaded connection hole, and the threaded connection hole is used to be positioned on the fixed surface of the fixed machine base of the high-precision lathe when processing the texture forming area.

7. A mold, characterized in that: It comprises a fixed mold plate, a movable mold plate and a molding insert based on an LED optical component according to any one of claims 1 to 6; The fixed template is arranged opposite to the movable template, and the movable template is used to move toward the fixed template when the mold is closed. The front mold core is provided with an insert positioning hole, and the movable penetration part is installed in the insert positioning hole. The front mold core is also provided with a hanging platform groove connected to the insert positioning hole, and the hanging platform part is formed with an anti-rotation straight edge part, and the anti-rotation straight edge part matches the hanging platform groove.

8. The mold according to claim 7, characterized in that: The front mold core is provided with a plurality of exhaust grooves along the parting surface, and one end of each exhaust groove is connected to the flash lamp cover molding cavity.

9. The mold according to claim 7, characterized in that: A cooling water transport groove is provided on the end surface of the hanging platform portion, and the distance between the bottom of the cooling water transport groove and the wall thickness of the grain forming area is less than 10 mm.

10. The mold according to claim 7, characterized in that: The end of the movable penetration portion is also formed with a sealing surface, and the sealing surface abuts against the cavity wall of the rear mold core when the mold is closed.

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