Small night light back plate batch forming die

Abstract

The utility model discloses a small night lamp backplate batch forming die, include: lower mould frame, lower mould core is located on the lower mould frame, still be equipped with a plurality of core on it, upper mould frame is movably located on the lower mould frame top, upper mould core is located on the lower end of upper mould frame, still be equipped with a plurality of with the core corresponding setting cavity on it accordingly, ejection mechanism is located on the lower mould frame, auxiliary ejection structure is opened in the upper surface both sides of upper mould core, can be linked with external environment, with the ejection mechanism cooperation carries out the ejection operation. The present application simple structure, through the setting of auxiliary ejection structure, can make upper mould core and lower mould core after the mould closing, still have part of space not form the adhesion can be linked with external environment, thereby can keep the relative change of pressure not big, avoid producing additional pressure force, the ejection operation of convenient ejection mechanism, practical and convenient, and greatly reduced the loss of ejection mechanism.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a batch molding mold for a night light back panel. 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] In existing injection molding production, demolding is generally achieved through an ejector mechanism. After injection molding, some ejector pins push out to open the upper mold, and then the remaining ejector pins push the product out of the lower mold, completing demolding. However, this demolding method has significant drawbacks. During injection molding, the upper and lower molds are completely fitted together, resulting in considerable pressure and adhesion forces between them. Therefore, the ejector pins often need to overcome more forces during the ejection process, which is quite troublesome and can potentially affect the normal ejection process, increasing wear and tear on the ejector mechanism. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a batch forming mold for the back panel of a night light.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A batch molding die for a night light back panel includes:

[0007] Lower mold frame;

[0008] The lower mold core is located on the lower mold frame and is also provided with multiple mold cores;

[0009] The upper mold frame is movably positioned above the lower mold frame;

[0010] The upper mold core is located at the lower end of the upper mold frame, and a plurality of cavities corresponding to the mold core are also provided thereon;

[0011] The ejection mechanism is located on the lower mold frame;

[0012] An auxiliary ejection structure is provided on both sides of the upper surface of the upper mold core, which can be connected to the external environment to cooperate with the ejection mechanism to perform ejection operations.

[0013] As described above, in a batch forming mold for a night light back panel, the ejection mechanism includes an ejector rod fixing assembly mounted on the lower mold frame, and a plurality of ejector rods movably mounted on the ejector rod fixing assembly.

[0014] As described above, in a batch forming mold for a night light back panel, the auxiliary ejection structure includes several clearance grooves formed on the upper surface of the upper mold core, and a connecting groove formed on the upper surface of the upper mold core and connecting the clearance grooves with the outer wall of the upper mold core, with the upper ends of several ejector rods correspondingly exposed in the clearance grooves.

[0015] As described above, in a batch forming mold for a night light back panel, multiple clearance grooves are respectively arranged on the periphery of the core.

[0016] As described above, in a batch forming mold for a night light back panel, the ejector pin includes a demolding ejector pin and an opening ejector pin. The demolding ejector pin is correspondingly located at the core, and the opening ejector pin is correspondingly located at the clearance groove.

[0017] As described above, in a batch forming mold for a night light back panel, the depth of the connecting groove is set in a stepped manner from the outer wall of the upper mold core towards the clearance groove.

[0018] As described above, in a batch forming mold for a night light back panel, the depth of the connecting groove increases progressively from the outer wall of the upper mold core towards the clearance groove.

[0019] As described above, in a batch forming mold for a night light back panel, a casting structure is also provided between the lower mold core and the upper mold core.

[0020] As described above, a batch forming mold for a night light back panel includes a casting structure comprising a casting groove on the lower mold core and a main channel on the upper mold core, with multiple cores arranged on both sides of the casting groove.

[0021] The beneficial effects of this utility model are: the structure of this application is simple. By setting the auxiliary ejection structure, after the upper mold core and the lower mold core are closed, there is still a part of the space that is not in contact with the external environment, so as to keep the relative pressure change small, avoid generating additional pressure, facilitate the ejection operation of the ejection mechanism, and is practical and convenient, and greatly reduces the wear of the ejection mechanism. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a batch forming mold for a night light back panel according to an embodiment of the present invention;

[0024] Figure 2 This is an exploded view of the structure of a batch forming mold for a night light back panel according to an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the lower mold frame, lower mold core, and auxiliary ejection structure described in this embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the upper mold core as described in an embodiment of the present invention. Detailed Implementation

[0027] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0028] Please see Figures 1 to 4 As shown in the figure, this application embodiment provides a batch forming mold for a night light back panel, including:

[0029] Lower mold frame 1;

[0030] The lower mold core 2 is disposed on the lower mold frame 1, and a plurality of cores 20 are also disposed thereon;

[0031] The upper mold frame 3 is movably positioned above the lower mold frame 1;

[0032] The upper mold core 4 is located at the lower end of the upper mold frame 3, and a plurality of cavities 40 corresponding to the core 20 are also provided thereon;

[0033] Ejection mechanism 5 is provided on the lower mold frame 1;

[0034] The auxiliary ejection structure 6 is provided on both sides of the upper surface of the upper mold core 4, and can be connected to the external environment to cooperate with the ejection mechanism 5 to perform ejection operation.

[0035] By setting the auxiliary ejection structure 6, after the upper mold core 4 and the lower mold core 2 are closed, there is still a part of the space that is not in contact with the external environment, so that the relative pressure change is not large, avoiding the generation of additional pressure force, facilitating the ejection operation of the ejection mechanism 5, which is practical and convenient, and greatly reduces the wear and tear of the ejection mechanism 5.

[0036] Furthermore, the ejection mechanism 5 includes an ejector rod fixing assembly 51 disposed on the lower mold frame 1, and a plurality of ejector rods 52 movably disposed on the ejector rod fixing assembly 51.

[0037] In this embodiment, the structure and working principle of the ejection mechanism 5 are common existing technologies in the field. This application applies them simply and will not describe them in detail here.

[0038] Furthermore, the auxiliary ejection structure 6 includes a plurality of clearance grooves 61 formed on the upper surface of the upper mold core 4, and a connecting groove 62 formed on the upper surface of the upper mold core 4 and connecting the clearance grooves 61 with the outer side wall of the upper mold core 4, with the upper ends of the plurality of ejector rods 52 correspondingly exposed in the clearance grooves 61.

[0039] Specifically, the ejector pin 52 includes a demolding ejector pin 521 and a mold opening ejector pin 522. The demolding ejector pin 521 is correspondingly located at the core 20, and the mold opening ejector pin 522 is correspondingly located at the clearance groove 61.

[0040] By cooperating with the clearance groove 61 and the connecting groove 62, after the upper mold core 4 and the lower mold core 2 are closed, the clearance groove 61 can be connected to the external environment through the connecting groove 62, so that the end space of the mold opening ejector 522 remains relatively stable with the external pressure, avoiding the generation of additional pressure during the ejection process, facilitating the ejection operation of the ejection mechanism, which is practical and convenient, and greatly reduces the wear of the ejection mechanism.

[0041] Specifically, the plurality of clearance grooves 61 are respectively arranged on the periphery of the core 20. This also avoids generating additional pressure during the demolding process of the core 20 and the cavity 40, facilitates the ejection operation of the ejection mechanism, protects the demolded product, is practical and convenient, and greatly reduces the wear and tear on the ejection mechanism.

[0042] Furthermore, the depth of the connecting groove 62 is set in a stepped manner from the outer wall of the upper mold core 4 toward the clearance groove 61.

[0043] Specifically, the depth of the connecting groove 62 is set to increase from the outer wall of the upper mold core 4 toward the clearance groove 61.

[0044] Furthermore, a casting structure 7 is provided between the lower mold core 2 and the upper mold core 4.

[0045] Specifically, the casting structure 7 includes a casting groove 71 formed on the lower mold core 2 and a main channel 72 formed on the upper mold core 4, with multiple cores 20 arranged on both sides of the casting groove 71.

[0046] In summary, by setting the auxiliary ejection structure 6, this application allows some space to remain unfitted after the upper mold core 4 and lower mold core 2 are closed, thus maintaining a relatively small change in pressure, avoiding the generation of additional pressure, facilitating the ejection operation of the ejection mechanism 5, making it practical and convenient, and greatly reducing the wear and tear on the ejection mechanism 5.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A batch forming mold for a night light back panel, characterized in that, Including: Lower mold frame (1); The lower mold core (2) is located on the lower mold frame (1), and a plurality of cores (20) are also provided thereon. The upper mold frame (3) is movably positioned above the lower mold frame (1); The upper mold core (4) is located at the lower end of the upper mold frame (3), and a plurality of cavities (40) corresponding to the mold core (20) are also provided on it. Ejection mechanism (5) is provided on the lower mold frame (1); The auxiliary ejection structure (6) is located on both sides of the upper surface of the upper mold core (4), and can be connected to the external environment to cooperate with the ejection mechanism (5) for ejection operation.

2. The batch forming mold for a night light back panel according to claim 1, characterized in that: The ejection mechanism (5) includes an ejector rod fixing assembly (51) disposed on the lower mold frame (1) and a plurality of ejector rods (52) movably disposed on the ejector rod fixing assembly (51).

3. The batch forming mold for a night light back panel according to claim 2, characterized in that: The auxiliary ejection structure (6) includes a plurality of clearance grooves (61) opened on the upper surface of the upper mold core (4) and a connecting groove (62) opened on the upper surface of the upper mold core (4) and connecting the clearance grooves (61) and the outer side wall of the upper mold core (4), with the upper ends of a plurality of ejector rods (52) correspondingly exposed in the clearance grooves (61).

4. The batch forming mold for a night light back panel according to claim 3, characterized in that: The multiple clearance slots (61) are respectively arranged on the periphery of the core (20).

5. The batch forming mold for a night light back panel according to claim 3, characterized in that: The ejector pin (52) includes a demolding ejector pin (521) and a mold opening ejector pin (522). The demolding ejector pin (521) is located at the core (20), and the mold opening ejector pin (522) is located at the clearance groove (61).

6. The batch forming mold for a night light back panel according to claim 3, characterized in that: The depth of the connecting groove (62) is set in a stepped manner from the outer wall of the upper mold core (4) toward the clearance groove (61).

7. The batch forming mold for a night light back panel according to claim 6, characterized in that: The depth of the connecting groove (62) is increased from the outer wall of the upper mold core (4) toward the clearance groove (61).

8. The batch forming mold for a night light back panel according to claim 1, characterized in that: A casting structure (7) is also provided between the lower mold core (2) and the upper mold core (4).

9. The batch forming mold for a night light back panel according to claim 8, characterized in that: The casting structure (7) includes a casting groove (71) on the lower mold core (2) and a main channel (72) on the upper mold core (4), with multiple cores (20) arranged on both sides of the casting groove (71).

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