Injection mold for trident-shaped lamp base

Abstract

The utility model discloses an injection mold for a trident-shaped lamp base, which belongs to the field of lamp injection molds and comprises an ejector pin structure, a fixed mold structure, a movable mold structure, a buckling machine structure, a fixed mold core, a movable mold core, a fixed mold extruding block, a movable mold extruding block, a texture layer, a product body, a fixed mold insert and a material feeding block. The texture layer is arranged at the position, corresponding to the end of the product body, of the inner side of the mold core, the anti-skid matte surface effect is directly and synchronously formed on the surface of the product body in the injection molding process, and secondary machining procedures such as sand blasting, dull polishing or chemical etching in the traditional technology are omitted. The production cycle is remarkably shortened, energy consumption and equipment maintenance cost are reduced, the risk of dust pollution, chemical residues or surface microcracks generated by secondary machining is avoided, meanwhile, the uniformity and dimensional precision consistency of the matte texture are ensured, the texture and the product body are integrally formed, and the production efficiency is improved. And the problem of surface damage or insufficient adhesive force caused by post-treatment is completely eradicated, and the product yield is improved.

Description

Technical Field

[0001] This utility model relates to the field of lamp injection molds, and in particular to an injection mold for a three-pronged lamp base. Background Technology

[0002] In existing technologies, plastic products with complex structures, such as three-pronged lamp bases, typically require additional surface treatment processes (such as sandblasting, frosting, chemical etching, or laser engraving) after molding to achieve a matte finish to meet anti-slip or aesthetic requirements. However, traditional processes have the following problems: First, production efficiency is low because the product needs to be transferred to separate equipment for secondary processing after injection molding, leading to extended production cycles, increased equipment and labor costs, and significant efficiency bottlenecks during large-scale production. Second, quality risks and pollution hazards are prominent. Sandblasting may generate metal dust that pollutes the product or the environment, while chemical etching can easily lead to surface micro-cracks or chemical residues, reducing product strength. Furthermore, the precision of secondary processing is difficult to perfectly match the injection molding tolerances, easily causing uneven surface textures or dimensional deviations. In addition, there are significant cost and environmental pressures. The investment in secondary equipment, consumable consumption (sand, chemicals), and waste disposal costs are high, and the dust and chemical waste generated by some processes (such as sandblasting) may violate environmental regulations. Utility Model Content

[0003] The purpose of this invention is to solve the problems mentioned in the background art by designing an injection mold for a three-pronged lamp base.

[0004] The technical solution of this utility model to achieve the above objectives is as follows: an injection mold for a three-pronged lamp base, comprising an ejector pin structure, a fixed mold structure, a moving mold structure, a fastening mechanism, a fixed mold core, a moving mold core, a fixed mold clamping block, a moving mold clamping block, a textured layer, a product body, a fixed mold insert, and a feeding block. The ejector pin structure is installed above the fixed mold structure, and the moving mold structure is installed below the fixed mold structure. The fastening mechanism is connected to the ejector pin structure, the fixed mold structure, and the moving mold structure respectively by bolts. The fixed mold core is fixedly connected to the fixed mold structure by bolts. The core and moving mold structure are fixedly connected by bolts. The fixed mold clamping block is fixedly connected to the fixed mold structure by bolts and fits against the fixed mold core. The moving mold clamping block is fixedly connected to the moving mold structure by bolts and fits against the moving mold core. The fixed mold core has a textured layer on its inner side. The moving mold core has a textured layer on its inner side. The product body is located inside the fixed mold core and the moving mold core. The textured layer is located at the end position of the product body corresponding to the inner side of the fixed mold core and the moving mold core. The fixed mold insert is embedded in the middle position of the fixed mold core. The feeding block is fixedly connected to the ejector pin structure.

[0005] Furthermore, the ejector pin structure includes an ejector pin panel, an ejector pin base plate, an ejector pin return pin, and a spring. The ejector pin panel and the ejector pin base plate are connected by bolts. The ejector pin return pin is fixedly connected to the ejector pin panel. The ejector pin return pin is slidably connected to the fixed mold structure. The spring is fitted onto the ejector pin return pin.

[0006] Furthermore, the fixed mold structure includes a mold panel, a mold square iron, a fixed mold plate, and a fixed mold guide pillar. The mold panel and the mold square iron are connected by bolts. The mold square iron and the fixed mold plate are fixedly connected by bolts. The fixed mold plate is slidably connected to the ejector pin structure. The fixed mold plate is fixedly connected to the fixed mold guide pillar. The fixed mold guide pillar is slidably connected to the moving mold structure. The fixed mold plate and the fixed mold core are fixedly connected by bolts. The fixed mold plate and the fixed mold clamping block are fixedly connected by bolts.

[0007] Furthermore, the moving mold structure includes a moving mold template, a moving mold panel, and a moving mold guide sleeve. The moving mold template and the moving mold panel are fixedly connected by bolts. The moving mold template and the moving mold core are fixedly connected by bolts. The moving mold template and the moving mold clamping block are fixedly connected by bolts. The moving mold guide sleeve is fixedly connected to the moving mold template and is slidably connected to the fixed mold structure.

[0008] Furthermore, the fastening mechanism structure includes fastening mechanism A, fastening mechanism B, and a connecting component. Fastening mechanism A is connected to the ejector pin structure by bolts, fastening mechanism B is connected to the moving mold structure by bolts, and the connecting component covers fastening mechanism A and fastening mechanism B and is fixedly connected to the fixed mold structure by bolts.

[0009] Furthermore, the fixed mold structure and the moving mold structure are respectively provided with three mold blank precision positioning. The mold blank precision positioning is connected to the fixed mold structure and the moving mold structure respectively by bolts. The protruding part of the mold blank precision positioning on the fixed mold structure has the same shape as the groove part of the mold blank precision positioning on the moving mold structure.

[0010] Furthermore, the fixed mold structure is provided with a fixed mold nozzle, which is fixedly connected to the fixed mold structure.

[0011] Beneficial effects:

[0012] This invention provides an injection mold for a three-pronged lamp base, offering the following advantages: The device, through its structural design, connects the ejector pin structure, fixed mold structure, and moving mold structure into an integrated locking system via a snap-fit ​​mechanism. After mold closing, molten plastic enters the feed block through the fixed mold structure and flows along the internal flow channel into the cavity formed by the closed fixed mold core and moving mold core. The fixed mold core contains a fixed mold insert, and the textured layer on the inner side of the fixed and moving mold cores, corresponding to the product body end, directly forms an anti-slip matte surface on the product body. Simultaneously, the fixed mold clamping block and the moving mold clamping block are fixed to the fixed and moving mold templates respectively by bolts, tightly fitting the outer edges of the fixed and moving mold cores to eliminate gaps and prevent melt leakage. When the mold is opened, the locking mechanism is unlocked, the moving mold structure moves down, and the ejector pin structure ejects the product body, completing the entire cycle. Compared with the prior art, this utility model sets a textured layer on the inner side of the fixed mold core and the moving mold core at the position corresponding to the end of the product body. During the injection molding process, the anti-slip matte effect is directly formed on the surface of the product body simultaneously, eliminating the secondary processing steps such as sandblasting, grinding, or chemical etching in traditional processes. This significantly shortens the production cycle, reduces energy consumption and equipment maintenance costs, and avoids the risks of dust pollution, chemical residues, or surface micro-cracks caused by secondary processing. At the same time, it ensures the uniformity and dimensional accuracy of the matte texture. Moreover, the texture is integrally formed with the product body, eliminating the surface damage or insufficient adhesion caused by post-processing, improving product yield, eliminating the need for a secondary matte treatment process, and significantly improving production efficiency and product consistency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an injection mold for a three-pronged lamp base as described in this utility model;

[0014] Figure 2 This is an exploded structural diagram of an injection mold for a three-pronged lamp base as described in this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the fixed mold core and the moving mold core described in this utility model.

[0016] In the diagram, 1. Ejector pin structure; 2. Fixed mold structure; 3. Moving mold structure; 4. Fastening mechanism structure; 5. Fixed mold core; 6. Moving mold core; 7. Fixed mold clamping block; 8. Moving mold clamping block; 9. Texture layer; 10. Product body; 11. Fixed mold insert; 12. Mold blank precision positioning; 13. Fixed mold nozzle; 14. Feed block; 101. Ejector pin panel; 102. Ejector pin base plate; 103. Ejector pin return pin; 104. Spring; 201. Mold panel; 202. Mold square iron; 203. Fixed mold plate; 204. Fixed mold guide pillar; 301. Moving mold plate; 302. Moving mold panel; 303. Moving mold guide sleeve; 401. Fastening mechanism A; 402. Fastening mechanism B; 403. Connecting parts. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "set / set up," "sleeve," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figure 1-3This utility model provides a technical solution: an injection mold for a three-pronged lamp base, comprising an ejector pin structure 1, a fixed mold structure 2, a moving mold structure 3, a clamping structure 4, a fixed mold core 5, a moving mold core 6, a fixed mold clamping block 7, a moving mold clamping block 8, a textured layer 9, a product body 10, a fixed mold insert 11, and a feed block 14. The ejector pin structure 1 is installed above the fixed mold structure 2, and the moving mold structure 3 is installed below the fixed mold structure 2. The clamping structure 4 is connected to the ejector pin structure 1, the fixed mold structure 2, and the moving mold structure 3 by bolts. The fixed mold core 5 is fixedly connected to the fixed mold structure 2 by bolts. The core 6 is fixedly connected to the moving mold structure 3 by bolts. The fixed mold clamping block 7 is fixedly connected to the fixed mold structure 2 by bolts and fits against the fixed mold core 5. The moving mold clamping block 8 is fixedly connected to the moving mold structure 3 by bolts and fits against the moving mold core 6. The fixed mold core 5 has a textured layer 9 on its inner side. The moving mold core 6 has a textured layer 9 on its inner side. The product body 10 is located inside the fixed mold core 5 and the moving mold core 6. The textured layer 9 is located inside the fixed mold core 5 and the moving mold core 6, corresponding to the end position of the product body 10. The fixed mold insert 11 is embedded in the middle position of the fixed mold core 5. The feeding block 14 is fixedly connected to the ejector pin structure 1.

[0021] In this utility model, the ejector structure 1 includes an ejector panel 101, an ejector base plate 102, an ejector return pin 103, and a spring 104. The ejector panel 101 and the ejector base plate 102 are connected by bolts. The ejector return pin 103 is fixedly connected to the ejector panel 101 and slidably connected to the fixed mold structure 2. The spring 104 is fitted on the ejector return pin 103. The ejector panel 101 and the ejector base plate 102 act as supports to drive the ejector return pin 103 and the feed block 14 to move and eject the product body 10. The spring 104 drives the ejector structure 1 to reset.

[0022] In this utility model, the fixed mold structure 2 includes a mold panel 201, a mold square iron 202, a fixed template 203, and a fixed mold guide post 204. The mold panel 201 and the mold square iron 202 are connected by bolts. The mold square iron 202 and the fixed template 203 are fixedly connected by bolts. The fixed template 203 is slidably connected to the ejector pin structure 1. The fixed template 203 is fixedly connected to the fixed mold guide post 204. The fixed mold guide post 204 is slidably connected to the moving mold structure 3. The fixed template 203 and the fixed mold core 5 are fixedly connected by bolts. The fixed template 203 and the fixed mold clamping block 7 are fixedly connected by bolts. The mold panel 201 and the mold square iron 202 form the top of the mold and leave room for the ejector pin structure 1 to move. The fixed mold guide post 204 on the fixed template 203 is slidably connected to the moving mold structure 3 to ensure the guiding accuracy when the mold opens and closes.

[0023] In this utility model, the moving mold structure 3 includes a moving mold template 301, a moving mold panel 302, and a moving mold guide sleeve 303. The moving mold template 301 and the moving mold panel 302 are fixedly connected by bolts. The moving mold template 301 and the moving mold core 6 are fixedly connected by bolts. The moving mold template 301 and the moving mold clamping block 8 are fixedly connected by bolts. The moving mold guide sleeve 303 is fixedly connected to the moving mold template 301 and is slidably connected to the fixed mold structure 2. The moving mold template 301 serves as a bottom support. The moving mold guide sleeve 303 on the moving mold panel 302 is slidably connected to the fixed mold structure 2 to ensure the guiding accuracy when the mold opens and closes.

[0024] In this utility model, the locking mechanism 4 includes a locking mechanism A part 401, a locking mechanism B part 402, and a connecting part 403. The locking mechanism A part 401 is connected to the ejector pin structure 1 by bolts, and the locking mechanism B part 402 is connected to the moving mold structure 3 by bolts. The connecting part 403 covers the locking mechanism A part 401 and the locking mechanism B part 402 and is fixedly connected to the fixed mold structure 2 by bolts. The locking mechanism A part 401 is connected to the ejector pin structure 1, and the locking mechanism B part 402 is locked to the moving mold structure 3. The connecting part 403 covers the locking mechanism A part 401 and the locking mechanism B part 402 and is fixed to the fixed mold structure 2 by bolts, thereby connecting the ejector pin structure 1, the fixed mold structure 2, and the moving mold structure 3 to form an integrated locking system.

[0025] In this utility model, three mold blank precision positioning 12s are respectively provided on the fixed mold structure 2 and the moving mold structure 3. The mold blank precision positioning 12s are respectively connected to the fixed mold structure 2 and the moving mold structure 3 by bolts. The protruding part of the mold blank precision positioning 12 on the fixed mold structure 2 has the same shape as the groove part of the mold blank precision positioning 12 on the moving mold structure 3. Through the mold blank precision positioning 12s on the fixed mold structure 2 and the moving mold structure 3, it is ensured that the fixed mold structure and the moving mold structure are aligned without deviation.

[0026] In this utility model, a fixed mold nozzle 13 is provided on the fixed mold structure 2. The fixed mold nozzle 13 is fixedly connected to the fixed mold structure 2. The fixed mold nozzle 13 on the fixed mold structure 2 is connected to the injection molding machine, so that the melt enters the feed block 14 more accurately.

[0027] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0028] In this implementation scheme: the moving mold template 301 serves as the bottom support. First, the fastener A part 401 is connected to the ejector base plate 102. Then, the fastener B part 402 is locked to the moving mold template 301. Finally, the connector 403 covers the fastener A part 401 and the fastener B part 402 and is fixed to the fixed template 203 with bolts, thereby connecting the ejector structure 1, the fixed mold structure 2 and the moving mold structure 3 to form an integrated locking system. The mold blank precision positioning 12 on the fixed mold structure 2 and the moving mold structure 3 ensures that the fixed mold structure and the moving mold structure are aligned without deviation.

[0029] After mold closing, the molten plastic is guided from the internal flow channel of the feed block 14 to the cavity formed by the closing of the fixed mold core 5 and the moving mold core 6. It is then connected to the injection molding machine via the fixed mold nozzle 13 on the fixed mold structure 2, allowing the molten plastic to enter the feed block 14 more precisely. The fixed mold core 5 has a fixed mold insert 11 embedded in its center, and the textured layer 9 on the inner sides of the fixed mold core 5 and the moving mold core 6, corresponding to the end positions of the product body 10, directly forms an anti-slip matte surface on the surface of the product body 10. Simultaneously, the fixed mold clamping block 7 and the moving mold clamping block 8 are fixed to the fixed mold plate 203 and the moving mold plate 301 respectively by bolts, and are tightly fitted to the outer edges of the fixed mold core 5 and the moving mold core 6, eliminating gaps and preventing molten leakage.

[0030] When the mold is opened, the fastening structure 4 is unlocked first. Then, the ejector plate 101 and the ejector base plate 102 act as supports to drive the ejector return pin 103 and the material feeding block 14 to move. The mold plate 201 and the mold square iron 202 form the top of the mold and leave room for the ejector structure 1 to move. The movement of the ejector return pin 101 drives the moving mold plate 301 to slide along the fixed mold guide post 204 on the fixed plate 203 with the moving mold guide sleeve 303. The material feeding block moves to push out the product body 10. After the product body 10 is taken out, the spring 104 drives the ejector structure 1 to reset, completing the whole cycle.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection mold for a trident-shaped lamp pin, comprising a pin structure (1), a fixed mold structure (2), a movable mold structure (3), a clamping structure (4), a fixed mold core (5), a movable mold core (6), a fixed mold extrusion block (7), a movable mold extrusion block (8), a texture layer (9), a product body (10), a fixed mold insert (11), a material feeding block (14), characterized in that, The ejector structure (1) is installed above the fixed mold structure (2), the movable mold structure (3) is installed below the fixed mold structure (2), the stripper structure (4) is connected with the ejector structure (1), the fixed mold structure (2) and the movable mold structure (3) through bolts respectively, the fixed mold core (5) is fixedly connected with the fixed mold structure (2) through bolts, the movable mold core (6) is fixedly connected with the movable mold structure (3) through bolts, the fixed mold extrusion block (7) is fixedly connected with the fixed mold structure (2) through bolts and is attached to the fixed mold core (5), the movable mold extrusion block (8) is fixedly connected with the movable mold structure (3) through bolts and is attached to the movable mold core (6), the inside of the fixed mold core (5) is provided with a texture layer (9), the inside of the movable mold core (6) is provided with a texture layer (9), the product body (10) is located inside the fixed mold core (5) and the movable mold core (6), the texture layer (9) is located inside the fixed mold core (5) and the movable mold core (6) corresponding to the end position of the product body (10), the fixed mold insert (11) is embedded in the middle position of the fixed mold core (5), and the material feeding block (14) is fixedly connected with the ejector structure (1).

2. An injection mold for a three-pronged lamp base as defined in claim 1, wherein, The ejector structure (1) includes an ejector panel (101), an ejector bottom plate (102), an ejector needle return (103) and a spring (104), the ejector panel (101) is connected with the ejector bottom plate (102) through bolts, the ejector needle return (103) is fixedly connected with the ejector panel (101), the ejector needle return (103) is slidably connected with the fixed mold structure (2), and the spring (104) is sleeved on the ejector needle return (103).

3. The injection mold for a three-pronged lamp base of claim 1, wherein, The fixed mold structure (2) includes a mold panel (201), a mold square iron (202), a fixed mold plate (203) and a fixed mold guide column (204), the mold panel (201) is connected with the mold square iron (202) through bolts, the mold square iron (202) is fixedly connected with the fixed mold plate (203) through bolts, the fixed mold plate (203) is slidably connected with the ejector structure (1), the fixed mold plate (203) is fixedly connected with the fixed mold guide column (204), the fixed mold guide column (204) is slidably connected with the movable mold structure (3), the fixed mold plate (203) is fixedly connected with the fixed mold core (5) through bolts, and the fixed mold plate (203) is fixedly connected with the fixed mold extrusion block (7) through bolts.

4. The injection mold for a three-pronged lamp base of claim 1, wherein, The movable mold structure (3) includes a movable mold template (301), a movable mold panel (302) and a movable mold guide sleeve (303), the movable mold template (301) is fixedly connected with the movable mold panel (302) through bolts, the movable mold template (301) is fixedly connected with the movable mold core (6) through bolts, the movable mold template (301) is fixedly connected with the movable mold extrusion block (8) through bolts, the movable mold guide sleeve (303) is fixedly connected with the movable mold template (301), and the movable mold guide sleeve (303) is slidably connected with the fixed mold structure (2).

5. The injection mold for a three-pronged lamp base of claim 1, wherein, The buckle structure (4) comprises a buckle A piece (401), a buckle B piece (402) and a connecting piece (403), the buckle A piece (401) is connected with the ejector pin structure (1) through bolts, the buckle B piece (402) is connected with the movable die structure (3) through bolts, the connecting piece (403) is covered on the buckle A piece (401) and the buckle B piece (402) and is fixedly connected with the fixed die structure (2) through bolts.

6. The injection mold for a three-pronged lamp base of claim 1, wherein, Three embryo fine positioning (12) are respectively arranged on the fixed die structure (2) and the movable die structure (3), the embryo fine positioning (12) is respectively connected with the fixed die structure (2) and the movable die structure (3) through bolts, the convex part of the embryo fine positioning (12) on the fixed die structure (2) is consistent with the groove part of the embryo fine positioning (12) on the movable die structure (3).

7. The injection mold for a three-pronged lamp base of claim 1, wherein, The fixed die structure (2) is provided with a fixed die material nozzle (13), and the fixed die material nozzle (13) is fixedly connected with the fixed die structure (2).

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