Composite die

Abstract

The utility model relates to the technical field of injection molds, in particular to a composite mold which comprises a mold core with a mold core hole and a mold core matched with the mold core hole, a groove is formed in the top of the mold core, a plurality of movable bolts are arranged in the groove, and the lower portions of the movable bolts extend into the mold core hole; the side, facing the interior of the mold core, of the top of the mold core is provided with an inclined face, and the upper surface of the mold core is provided with a notch capable of avoiding at least one movable bolt. According to the utility model, the injection molding production of products with different models is met through the interchange of different mold cores, and meanwhile, the types of the mold cores in the mold are clearly identified through the design matching of the movable bolts and the mold cores, so that the confusion is avoided.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a composite mold. Background Technology

[0002] Plastic products have become ubiquitous in all aspects of people's lives, including auto parts, home appliances, and consumer electronics. To meet the different appearance and functional configuration needs of various consumers, many products often design plastic functional or appearance parts in multiple styles and configurations. These multiple styles and configurations are often achieved by changing the structure or shape of the plastic parts, such as having different logos, having button holes, or not having button holes. However, a set of injection molds usually only produces one type of shape. This inevitably leads to confusion between molds with slight structural design differences. Therefore, molds that can quickly identify the product category are needed. Utility Model Content

[0003] The purpose of this invention is to provide a composite mold that can identify different injection molding requirements.

[0004] This utility model provides the following technical solution:

[0005] This utility model proposes a composite mold, including a mold core with a mold core hole and a mold core that mates with the mold core hole. The top of the mold core has a groove, and the groove has a plurality of movable bolts whose lower parts extend into the mold core hole. The top of the mold core has an inclined surface on the side facing the interior of the mold core, and the upper surface of the mold core has a notch that can avoid at least one movable bolt.

[0006] Furthermore, a cover plate is provided on the upper part of the groove, and the cover plate has a through hole for the top of the movable bolt to be exposed.

[0007] Furthermore, the upper surface of the movable bolt has a distinguishing mark.

[0008] Furthermore, the bottom of the movable bolt is rounded.

[0009] Furthermore, the bottom surface of the groove has a through hole for the bottom of the movable bolt to pass through, and the middle of the movable bolt has a limiting platform.

[0010] Furthermore, the diameter of the through hole is 0.2-0.3 mm larger than the diameter of the top of the movable bolt.

[0011] Furthermore, the cover plate is fixed to the upper part of the mold core by screws.

[0012] Furthermore, the upper part of the groove also has a cover plate groove for supporting the cover plate.

[0013] Compared with the prior art, this utility model can meet the injection molding production of different models of products by interchangeing different mold cores. At the same time, the design of the movable bolt and the mold core can clearly identify the type of mold core installed in the mold and avoid confusion. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the exploded structure of this utility model.

[0015] Figure 2 This is a cross-sectional view of the present invention. Figure 1 .

[0016] Figure 3 This is a cross-sectional view of the present invention. Figure 2 .

[0017] In the diagram, 1-mold core; 11-mold core hole; 12-groove; 13-cover plate groove; 14-perforation; 2-mold core; 21-sloping surface; 22-notch; 3-moving bolt; 31-marker; 32-limiting platform; 4-cover plate; 41-through hole. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] See Figure 1 and Figure 2 In one embodiment of this utility model, a composite mold includes a mold core 1 with a mold core hole 11 and a mold core 2 that mates with the mold core hole 11. The top of the mold core 1 has a groove 12, and the groove 12 has a plurality of movable bolts 3 whose lower parts extend into the mold core hole 11. The top of the mold core 2 has an inclined surface 21 on the side facing the interior of the mold core 1, and the upper surface of the mold core 2 has a notch 22 that can avoid at least one movable bolt 3. In practical applications, the movable bolt that is not avoided is pushed up and its top is exposed, thereby identifying the type of mold core 2 by the ejected movable bolt 3.

[0020] In practical applications, the mold core is divided into a front mold core and a rear mold core. The mold core described in this utility model is at least one of the front mold core and the rear mold core.

[0021] See Figure 1 and Figure 2 In one embodiment of the present invention, a cover plate 4 is provided on the upper part of the groove 12, and the cover plate 4 has a through hole 41 for the top of the movable bolt 3 to be exposed; to prevent the movable bolt 3 from coming out of the bottom of the groove 12 and falling off.

[0022] See Figure 1 In one embodiment of this utility model, the upper surface of the movable bolt 3 has a distinguishing mark 31 to facilitate better product categorization of the mold.

[0023] See Figure 1 and Figure 3 In one embodiment of this utility model, the bottom of the movable bolt 3 is rounded; so that when the mold core 2 is inserted into the mold core hole 11, the movable bolt 3 is pushed up along the inclined surface 21.

[0024] See Figure 2 or Figure 3 In one embodiment of the present invention, the bottom surface of the groove 12 has a through hole 14 for the bottom of the movable bolt 3 to pass through, and the middle part of the movable bolt 3 has a limiting platform 32; the limiting platform prevents the entire movable bolt from passing through the through hole and prevents the movable bolt from coming out of the through hole 41.

[0025] See Figure 2 or Figure 3 In one embodiment of this utility model, the diameter of the through hole 41 is 0.2-0.3 mm larger than the top diameter of the movable bolt 3, so as to facilitate the movable bolt 3 to move up and down better at the through hole.

[0026] See Figure 1 and Figure 3 In one embodiment of this utility model, the cover plate 4 is fixed to the upper part of the mold core 1 by screws.

[0027] See Figure 1 and Figure 2 In one embodiment of the present invention, the upper part of the groove 12 also has a cover plate groove 13 for supporting the cover plate 2.

[0028] To facilitate the demonstration and introduction of this utility model, the schematic diagrams shown in the accompanying drawings illustrate two movable bolts as an example. However, this utility model includes, but is not limited to, cases with two movable bolts, and can also have three, four, five, or other movable bolts.

[0029] In practical applications, the movable pins are inserted through the perforation, and the cover plate is secured to the cover plate groove using screws. At this point, all movable pins are below the upper surface of the cover plate. Then, the mold core is placed inside the mold core hole. The movable pins that are not obstructed are slowly pushed upwards by the inclined plane until their upper surfaces are flush with the upper surface of the cover plate. Finally, the mold core is secured to the mold core hole using screws. Installing different types of mold cores will push out the matching movable pins. Other movable pins will not be pushed out because of the cutouts in the mold core. The mold core type can be identified by observing the markings on the upper surface of the pushed-out movable pins.

[0030] This utility model is not a complete injection mold. In actual application, the assembled utility model needs to be combined with other mold components to form a complete injection mold. Other mold structures such as mold frame, guide pillars and guide sleeves, ejection devices, etc. are conventional structures of injection molds and are well known to those skilled in the art. This utility model will not describe them in detail.

[0031] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A split mold characterized by: The mold core hole is matched with a mold core, the top of the mold core is provided with a slope, and the upper surface of the mold core is provided with a notch.

2. A composite mold according to claim 1, characterized by: The upper part of the groove is provided with a cover plate, and the cover plate is provided with a through hole for exposing the top of the movable pin.

3. The composite mold according to claim 1, wherein: The upper surface of the movable pin is provided with a mark for distinguishing.

4. The composite mold of claim 1, wherein: The bottom of the movable pin is rounded.

5. The composite mold of claim 1, wherein: The bottom surface of the groove is provided with a through hole for the bottom of the movable pin to pass through, and the middle part of the movable pin is provided with a limiting table.

6. The composite mold of claim 2, wherein: The diameter of the through hole is 0.2-0.3mm larger than the diameter of the top of the movable pin.

7. The composite mold according to claim 2, wherein: The cover plate is fixed on the upper part of the mold core by a screw.

8. The composite mold according to claim 2, wherein: The upper part of the groove is also provided with a cover plate groove for bearing the cover plate.

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