Distributed injection mold with multiple mold cavities

Abstract

The utility model discloses a distributed multi-mold-cavity injection mold which comprises a bottom mold, a middle mold and a top mold, a plurality of corners of the upper surface of the bottom mold are vertically and fixedly connected with guide columns, and the corners of the upper surfaces of the middle mold and the top mold are respectively and vertically provided with insertion holes corresponding to and matched with the guide columns in a penetrating mode. The utility model relates to the technical field of injection molds. According to the distributed multi-mold-cavity injection mold, an upper heat exchange block, a lower heat exchange block, an air inlet hole and a communicating groove are arranged, steam can be introduced into a bottom mold through the air inlet hole when the device is actually used, the bottom mold is heated through the steam, and then heat exchange is conducted through the upper heat exchange block and the lower heat exchange block which are in contact with each other; therefore, it is guaranteed that the plastic materials in the flowing state cannot be rapidly cooled in the mold, the situation of corrugation is prevented, the two ends of the communicating grooves of the mold shrink inwards, water gaps left in a final product cannot be too large, and the final quality of the product can be improved.

Description

Technical Field

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

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding include high production speed and efficiency, automated operation, a wide variety of designs and shapes (from simple to complex), and sizes ranging from large to small. It also produces dimensionally accurate products, facilitates product updates and replacements, and can create complex shapes. Injection molding is suitable for mass production and molding processes involving complex shapes.

[0003] Distributed multi-cavity injection molds can mold multiple products at once, which is highly efficient. However, multiple products need to be connected through channels, which can cause sprue marks to appear on the product surface. In addition, the material is prone to cooling inside the mold in this injection method. When the cooled material enters the mold cavity through the small channels, it will form ripples, which will affect the product quality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a distributed multi-cavity injection mold, which solves the problem that while distributed multi-cavity injection molds can inject multiple products at once with high efficiency, multiple products need to be connected through channels, which can cause sprue marks to appear on the product surface. In addition, the material is prone to cooling inside the mold in this injection method. When the cooled material enters the mold cavity through the narrow channels, it will form ripples, affecting product quality.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a distributed multi-cavity injection mold, comprising a bottom mold, a middle mold, and a top mold;

[0006] The bottom mold has guide pillars fixedly connected to multiple corners on its upper surface. The middle mold and top mold have vertically penetrating holes at multiple corners on their upper surfaces, which correspond to and fit the multiple guide pillars. The middle mold and top mold are slidably connected to the outer surface of the multiple guide pillars through the multiple holes.

[0007] The bottom of the middle mold is vertically fixedly connected to multiple upper heat exchange blocks arranged along its width direction, and the upper surface of the bottom mold is vertically fixedly connected to multiple lower heat exchange blocks arranged at intervals with the upper heat exchange blocks.

[0008] Furthermore, an air inlet is provided on one side surface of the bottom mold, and the other end of the air inlet is coiled inside the bottom mold and extends to the other side surface of the bottom mold.

[0009] Furthermore, multiple upper heat exchange blocks are evenly spaced along the length of the middle mold.

[0010] Furthermore, the upper surface of the middle mold is provided with multiple parting grooves, and a connecting groove is provided between two adjacent parting grooves. A feeding groove that extends through to one side surface of the middle mold is provided on the side surface of one connecting groove.

[0011] Furthermore, both ends of the multiple connecting slots are recessed to form a cone shape.

[0012] Furthermore, the bottom end of the top mold is fixedly connected with multiple sub-modules, each corresponding to a different parting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This distributed multi-cavity injection mold, by setting up an upper heat exchange block, a lower heat exchange block, an air inlet, and a connecting groove, allows steam to be introduced into the bottom mold through the air inlet during actual use. The steam heats the bottom mold, and then heat is exchanged through the upper and lower heat exchange blocks that are in contact with each other. This ensures that the flowing plastic material does not cool down rapidly inside the mold, preventing ripples. Furthermore, the two ends of the multiple connecting grooves of the mold are all converging inward, so that the sprue left on the final product will not be too large, thus improving the final product quality. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Fig. 2 This is a schematic diagram showing the state of the air inlet in this utility model;

[0016] Fig. 3 This is a schematic diagram of the parting groove in this utility model.

[0017] In the diagram: 1-bottom mold, 2-middle mold, 3-top mold, 4-guide pillar, 5-insertion hole, 6-lower heat exchange block, 7-upper heat exchange block, 8-parting groove, 9-air inlet hole. Detailed Implementation

[0018] 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.

[0019] Please see Figs. 1-3 This utility model provides a technical solution: a distributed multi-cavity injection mold, including a bottom mold 1, a middle mold 2 and a top mold 3;

[0020] The bottom mold 1 has guide posts 4 vertically fixedly connected to multiple corners on its upper surface. The middle mold 2 and the top mold 3 have vertically penetrating holes 5 that correspond to and fit the multiple guide posts 4. The middle mold 2 and the top mold 3 are slidably connected to the outer surface of the multiple guide posts 4 through the multiple holes 5.

[0021] The bottom of the middle mold 2 is vertically fixedly connected to a plurality of upper heat exchange blocks 7 arranged along its width direction, and the upper surface of the bottom mold 1 is vertically fixedly connected to a plurality of lower heat exchange blocks 6 arranged at intervals with the plurality of upper heat exchange blocks 7.

[0022] The bottom end of the top mold 3 is fixedly connected with multiple sub-modules corresponding to multiple parting grooves 8.

[0023] Multiple upper heat exchange blocks 7 are evenly spaced along the length of the middle mold 2.

[0024] An air inlet hole 9 is provided on one side surface of the bottom mold 1, and the other end of the air inlet hole 9 is coiled inside the bottom mold 1 and extends to the other side surface of the bottom mold 1.

[0025] In actual use, after the middle mold 2 and the bottom mold 1 are merged together, the multiple upper heat exchange blocks 7 and lower heat exchange blocks 6 between them will be interleaved and merged together. At this time, steam can be introduced into the interior of the bottom mold 1 through the air inlet 9 to heat the bottom mold 1. Then, heat is exchanged through the contacting upper heat exchange blocks 7 and lower heat exchange blocks 6 to ensure that the flowing plastic material does not cool down quickly inside the mold and to prevent ripples from occurring.

[0026] The upper surface of the middle mold 2 is provided with multiple mold parting grooves 8, and a connecting groove is provided between two adjacent mold parting grooves 8. A feeding groove that extends to one side surface of the middle mold 2 is provided on the side surface of one connecting groove.

[0027] The two ends of the multiple connecting slots are all concave to form a cone shape.

[0028] The flowing material enters the interior of multiple connecting channels through the feed chute, and then enters the interior of multiple parting channels 8. Finally, it is cooled and formed inside the multiple parting channels 8. Since the ends of the multiple connecting channels of the device are all recessed, the sprue cross-section left on the surface of the final product will be smaller, thereby improving the overall quality of the product.

[0029] In actual use, after the middle mold 2 and the bottom mold 1 are merged together, the multiple upper heat exchange blocks 7 and lower heat exchange blocks 6 between them will be interleaved and merged together. At this time, steam can be introduced into the interior of the bottom mold 1 through the air inlet 9 to heat the bottom mold 1. Then, heat is exchanged through the contacting upper heat exchange blocks 7 and lower heat exchange blocks 6 to ensure that the flowing plastic material does not cool down quickly inside the mold and prevent ripples. In addition, the two ends of the connecting groove of the device are inwardly recessed, so the sprue cross-section left on the surface of the final product will be smaller, thereby improving the overall quality of the product.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0031] 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 distributed multi-cavity injection mold, characterized in that: It includes a bottom mold (1), a middle mold (2), and a top mold (3); The bottom mold (1) has multiple corners on its upper surface that are vertically fixedly connected with guide posts (4). The middle mold (2) and the top mold (3) have multiple corners on their upper surfaces that are vertically opened with insertion holes (5) that correspond to and fit the multiple guide posts (4). The middle mold (2) and the top mold (3) are slidably connected to the outer surface of the multiple guide posts (4) through the multiple insertion holes (5). The bottom end of the middle mold (2) is vertically fixedly connected to a plurality of upper heat exchange blocks (7) arranged along its width direction, and the upper surface of the bottom mold (1) is vertically fixedly connected to a plurality of lower heat exchange blocks (6) arranged at intervals from the plurality of upper heat exchange blocks (7).

2. The distributed multi-cavity injection mold according to claim 1, characterized in that: An air inlet (9) is provided on one side surface of the bottom mold (1), and the other end of the air inlet (9) is coiled inside the bottom mold (1) and extends to the other side surface of the bottom mold (1).

3. The distributed multi-cavity injection mold according to claim 1, characterized in that: Multiple upper heat exchange blocks (7) are evenly spaced along the length of the middle mold (2).

4. The distributed multi-cavity injection mold according to claim 1, characterized in that: The upper surface of the middle mold (2) is provided with a plurality of mold parting grooves (8), and a connecting groove is provided between two adjacent mold parting grooves (8). A feeding groove that extends to one side surface of the middle mold (2) is provided on the side surface of one of the connecting grooves.

5. The distributed multi-cavity injection mold according to claim 4, characterized in that: Both ends of the multiple connecting slots are tapered inwards.

6. The distributed multi-cavity injection mold according to claim 4, characterized in that: The bottom end of the top mold (3) is fixedly connected to a plurality of sub-modules corresponding to the plurality of parting slots (8).

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