Mould for injection molding of electronic element

Abstract

The utility model provides a mold for injection molding of an electronic component, which is applied to the technical field of injection molds and comprises an ejection mechanism, the ejection mechanism is embedded and connected into a male mold plate, a male mold core is further arranged in the male mold plate, an injection molding groove is formed in the male mold core, and the ejection mechanism comprises an ejection insert which is arranged at the bottom of the injection molding groove; the injection molding grooves are communicated with the flow channel, the flow channel comprises a transportation flow channel, an annular flow channel and branch flow channels, one end of the transportation flow channel is connected with the injection pipe, the other end of the transportation flow channel is communicated with the annular flow channel through a connecting piece, the annular flow channel is communicated with a plurality of branch flow channels, and each branch flow channel is communicated with one injection molding groove. Through the arrangement of the conveying runner, the annular runner and the branch runner, raw materials are injected into the injection molding grooves which are annularly distributed, the forming amount of one-time injection molding is increased, the ejection block of the injection molding machine drives the ejection insert to eject injection molding products in batches, it can be guaranteed that each injection molding product is evenly stressed, the ejection process is not prone to being blocked, and the injection molding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to a mold for injection molding of electronic components. Background Art

[0002] Injection molding is a method of producing industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics.

[0003] The present application relates to an electronic product with a small volume and a small thickness. For electronic products with a small volume, an injection molding machine is usually used for batch molding. In order to improve the efficiency of injection molding of electronic products, a special layout of the injection molding runner is required. In addition, a single ejector rod on the injection molding machine cannot realize batch ejection of small-volume products, and an ejector mechanism is required to eject the products. Utility Model Content

[0004] In view of the above-mentioned problems in the prior art, the purpose of the utility model is to provide a mold for injection molding of electronic components. By setting a transport flow channel, an annular flow channel and a branch flow channel, the raw material is injected into the injection groove distributed in an annular manner, so as to increase the molding amount of one injection molding, and the ejection block of the injection molding machine drives the ejection insert to eject the injection molded products in batches, which can ensure that the force of each injection molded product is uniform, make the ejection process less prone to jamming, and improve the injection molding efficiency.

[0005] A mold for injection molding of electronic components, comprising an ejection mechanism driven by an ejection block of an injection molding machine to move up and down, the ejection mechanism being embedded and connected to the interior of a male mold plate, the interior of the male mold plate being also provided with a male mold core, the male mold core being provided with an injection molding groove, the ejection mechanism comprising an ejection insert, the ejection insert being arranged at the bottom of the injection molding groove; the injection molding groove being connected to a flow channel, and an injection molding product being formed in the injection molding groove after raw materials are injected into the flow channel; the flow channel comprising a transport flow channel, an annular flow channel and a branch flow channel, one end of the transport flow channel being connected to an injection pipe, and the other end being connected to the annular flow channel through a connector, a plurality of branch flow channels being connected to the annular flow channel, and each branch flow channel being connected to an injection molding groove.

[0006] Preferably, a plurality of branch channels are arranged on both sides of the annular flow channel, the branch channels on each side are distributed in an annular shape, and the branch channels distributed in an annular shape on both sides form concentric rings.

[0007] Preferably, the injection pipe is located at the center of the annular flow channel, and the injection pipe evenly injects the raw materials into the annular flow channel through multiple transport flow channels.

[0008] Preferably, the ejection mechanism also includes a support block, one end of the ejection insert passes through the male mold core and contacts the injection groove, and the other end is connected to the support block located in the male mold plate, the bottom of the support block is connected to the ejection block, and a spring is sleeved on the ejection block, and the spring is located between the support block and the ejection block.

[0009] Preferably, the ejection mechanism further comprises a fixing block, on which a slot for engaging with the ejection insert is formed, and the fixing block is located inside the male mold plate and between the male mold core and the support block.

[0010] The beneficial effect of the utility model is that the electronic component injection molding mold can evenly inject raw materials into the annularly distributed injection grooves through the arrangement of the transport flow channel, the annular flow channel and the branch flow channel, thereby increasing the molding volume of one injection molding and improving the injection molding efficiency.

[0011] An ejector insert is arranged at the bottom of each injection molding groove, so that the ejector block of the injection molding machine drives the ejector insert to eject the injection molded products in batches, which can ensure that the force of each injection molded product is uniform, make the ejection process less prone to jamming, and improve the demoulding efficiency.

[0012] The ejector insert is clamped by the additional fixing block, thereby providing a guiding function during the movement of the ejector insert, which is beneficial to improving the stability of the movement of the ejector insert. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the ejection mechanism of the utility model;

[0017] Figure 4 It is a front view of the ejection mechanism of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the utility model Figure 1 Enlarged view of point A in the middle.

[0019] The markings in the figure are: 1. male mold plate; 2. male mold core; 3. ejector mechanism; 4. ejector block; 5. spring; 6. support block; 7. fixing block; 8. ejector insert; 9. runner; 901. transport runner; 902. connector; 903. annular runner; 904. branch runner; 10. injection pipe; 11. injection molded product; 12. injection molding groove. DETAILED DESCRIPTION

[0020] Embodiment 1

[0021] like Figures 1 to 5 As shown, a mold for electronic component injection molding comprises a male mold plate 1, a male mold core 2, an ejection mechanism 3 and a flow channel 9. The male mold core 2 is sleeved inside the male mold plate 1, and an injection molding groove 12 is provided on the male mold core 2. The injection molding groove 12 is connected to the flow channel 9, and the injection molding product 11 is formed in the injection molding groove 12 after the raw material is injected from the flow channel 9.

[0022] Specifically, Figures 2 to 4 As shown, the ejector mechanism 3 is driven by the ejector block 4 of the injection molding machine to move up and down. The ejector mechanism 3 is embedded in the interior of the male mold plate 1 and includes a support block 6 and an ejector insert 8. The ejector insert 8 is arranged at the bottom of the injection groove 12.

[0023] Furthermore, one end of the ejector insert 8 passes through the male mold core 2 and contacts the injection groove 12, and the other end is connected to the support block 6 located in the male mold plate 1. The bottom of the support block 6 is connected to the ejector block 4. A spring 5 is sleeved on the ejector block 4, and the spring 5 is located between the support block 6 and the ejector block 4.

[0024] When the ejector block 4 of the injection molding machine moves upward, the ejector insert 8 on the support block 6 is driven to move upward, so that the ejector insert 8 can eject the injection molded product 11 formed in the injection groove 12. At this time, the spring 5 is compressed by elastic action to provide a certain movement stroke for the ejector block 4.

[0025] In addition, since the ejector insert 8 is a slender long rod structure, in order to improve its stability during movement, a fixed block 7 is arranged in the male mold plate 1, and a slot for engaging with the ejector insert 8 is opened on the fixed block 7. The fixed block 7 is located between the male mold core 2 and the supporting block 6. Through the engaging structure between the fixed block 7 and the ejector insert 8, the fixed block 7 improves the stability of the movement of the ejector insert 8.

[0026] On the other hand, in order to increase the amount of products molded by one injection molding, the injection grooves 12 on the male mold core 2 are arranged to be distributed in an annular manner, such as Figure 1 , Figure 5As shown, the flow channel 9 includes a transport flow channel 901, an annular flow channel 903 and a branch flow channel 904. One end of the transport flow channel 901 is connected to the injection pipe 10, and the other end is connected to the annular flow channel 903 through a connector 902. The annular flow channel 903 is connected to multiple branch flow channels 904, and each branch flow channel 904 is connected to an injection groove 12.

[0027] Furthermore, multiple branch channels 904 are arranged on both sides of the annular flow channel 903, and the branch channels 904 on each side are distributed in a ring shape. The branch channels 904 distributed in a ring shape on both sides form concentric rings. The injection pipe 10 is located at the center of the annular flow channel 903, and the injection pipe 10 injects the raw materials evenly into the annular flow channel 903 through multiple transport channels 901.

[0028] The injection molding material is injected into the flow channel 9 through the injection pipe 10. Relying on the track formed by the transport flow channel 901, the connecting piece 902, the annular flow channel 903 and the branch flow channel 904, the injection molding material can be evenly injected into the annularly distributed injection molding grooves 12, so that multiple injection molding grooves 12 can be injected at the same time, thereby improving the injection molding efficiency.

[0029] Working principle: When the electronic component injection molding mold is used, the injection molding material is injected through the injection tube 10. The injection molding material flows through the transport channel 901, the connecting piece 902, the annular channel 903 and the branch channel 904 and then enters the injection molding groove 12. The injection molding of the injection molding product 11 is realized through the existing injection molding principle.

[0030] After the injection molded product 11 is formed, the ejector block 4 of the injection molding machine in the prior art is used to drive the support block 6 to move upward, thereby driving the ejector insert 8 to move upward until the injection molded product 11 is ejected from the injection groove 12, thereby realizing batch demolding of the injection molded product 11.

[0031] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mold for electronic component injection molding, characterized in that: The invention comprises an ejection mechanism (3) which is driven by an ejection block (4) of an injection molding machine to move up and down, the ejection mechanism (3) being embedded and connected to the inside of a male mold plate (1), the inside of the male mold plate (1) also being provided with a male mold core (2), the male mold core (2) being provided with an injection molding groove (12), the ejection mechanism (3) comprising an ejection insert (8), the ejection insert (8) being arranged at the bottom of the injection molding groove (12); The injection molding groove (12) is in communication with the flow channel (9), and after the raw material is injected through the flow channel (9), an injection molded product (11) is formed in the injection molding groove (12); The flow channel (9) comprises a transport flow channel (901), an annular flow channel (903) and a branch flow channel (904); one end of the transport flow channel (901) is connected to the injection pipe (10), and the other end is connected to the annular flow channel (903) via a connector (902); a plurality of branch flow channels (904) are connected to the annular flow channel (903), and each branch flow channel (904) is connected to an injection groove (12).

2. The electronic component injection mold according to claim 1, characterized in that: A plurality of branch flow channels (904) are arranged on both sides of the annular flow channel (903), and the branch flow channels (904) on each side are distributed in an annular shape, and the branch flow channels (904) distributed in an annular shape on both sides form concentric rings.

3. The electronic component injection mold according to claim 1, characterized in that: The injection pipe (10) is located at the center of the annular flow channel (903), and the injection pipe (10) uniformly injects the raw materials into the annular flow channel (903) through a plurality of transport flow channels (901).

4. The electronic component injection mold according to claim 1, characterized in that: The ejection mechanism (3) further comprises a support block (6); one end of the ejection insert (8) passes through the male mold core (2) and contacts the injection groove (12); the other end is connected to the support block (6) located in the male mold plate (1); the bottom of the support block (6) is connected to the ejection block (4); a spring (5) is sleeved on the ejection block (4); and the spring (5) is located between the support block (6) and the ejection block (4).

5. The electronic component injection mold according to claim 4, characterized in that: The ejection mechanism (3) further comprises a fixing block (7), the fixing block (7) being provided with a slot for being engaged with an ejection insert (8), the fixing block (7) being located inside the male mold plate (1) and between the male mold core (2) and the supporting block (6).

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