Submersible gate molds and injection molding equipment
By adding an externally protruding block and an auxiliary glue-breaking channel to the submersible gate mold, the problems of severe wear at the gate position and complex molding were solved, achieving the effects of reducing debris generation and simplifying operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ATC TECH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-26
AI Technical Summary
When using glass fiber reinforced materials, existing submersible gate molds have high gate strength at the gate location, which leads to severe mold wear, easy generation of mixed debris, affects product quality, and complicates the molding process.
Adding an externally protruding block to the mold creates an auxiliary sprue breakage channel, moving the sprue breakage point to a deeper location. Combined with the connection between the inclined runner and the sprue gate, this reduces wear and simplifies the molding process.
It effectively reduces the generation of mixed debris, reduces mold wear, simplifies product molding operations, and eliminates the need for significant adjustments to the mold structure.
Smart Images
Figure CN224276002U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding technology, and in particular to a diving gate mold and injection molding equipment. Background Technology
[0002] Submersible gate molds are injection molds that use a special gating system. The gate is submerged below the parting surface at an angle, usually 30° to 45°. The gate is automatically cut off by the mold movement or ejection mechanism, achieving traceless injection. It can effectively keep the gate residue on the non-appearance surface of the product and is suitable for mass automated production. Therefore, it is widely used in the consumer electronics, medical device and automotive parts industries.
[0003] Similarly, submersible gate molds also have significant drawbacks. For example, the use of glass fiber reinforced materials in injection molding results in higher strength of the broken gate at the gate location, leading to more severe wear on the gate area in the mold. Furthermore, the scraping of the broken gate by the gate area easily generates mixed metal and plastic debris. The combined injection molding of these debris can cause defects in the product, and the accumulation of these debris can affect the ejection and repositioning of the mold's ejector pins. For instance, the utility model patent application with application number CN201621489178.8 proposes a solution where the submersible gate is placed on a slider. The slider drives the submersible gate to move in the opposite direction to the injection direction for demolding, thereby reducing the generation of mixed debris and alleviating mold wear. However, this solution requires significant adjustments to the mold and complicates the product molding process. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a submersible gate mold and injection molding equipment that can reduce mold adjustment and improve the complexity of product molding operations while ensuring less mixed debris generation and reducing mold wear.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A submersible gate mold includes a mold core and a gating seat. The mold core has a communicating cavity and at least one gating gate. The gating seat has at least one inclined runner, which communicates with the gating gate. The mold core is also connected to at least one protruding block, which blocks one end of the inclined runner near the gating gate. The protruding block protrudes at least partially from the gating seat and is located at the gating gate. The protruding block has an auxiliary glue-cutting channel, and the gating gate communicates with the inclined runner through the auxiliary glue-cutting channel.
[0007] In one embodiment, at the connection between the auxiliary glue-cutting channel and the glue inlet gate, the diameter of the auxiliary glue-cutting channel is smaller than the diameter of the glue inlet gate.
[0008] In one embodiment, the diameter of the auxiliary glue-cutting channel gradually increases from small to large at the end near the glue inlet gate and towards the end near the inclined flow channel.
[0009] In one embodiment, the diameter of the auxiliary glue-cutting channel increases linearly in the direction from the end of the auxiliary glue-cutting channel near the glue inlet gate to the end of the auxiliary glue-cutting channel near the inclined flow channel.
[0010] In one embodiment, at the connection between the auxiliary glue-breaking channel and the inclined flow channel, the aperture of the inclined flow channel is greater than or equal to the aperture of the auxiliary glue-breaking channel.
[0011] In one embodiment, at the connection between the auxiliary glue-breaking channel and the inclined flow channel, the inclined flow channel and the auxiliary glue-breaking channel are coaxially arranged.
[0012] In one embodiment, the convex block and the casting seat are integrally formed.
[0013] In one embodiment, at least one ejector pin is connected to the mold core, the ejector pin is located on the side of the cavity near the sprue, and the ejector pin moves toward and away from the cavity, and one end of the ejector pin communicates with the cavity.
[0014] In one embodiment, the end face of the ejector pin near the cavity is flush with the cavity surface.
[0015] An injection molding machine includes a mounting base and a submersible gate mold as described in any of the above embodiments, wherein the mold core and the gating base are mounted together on the mounting base.
[0016] Compared with the prior art, the present invention has at least the following advantages:
[0017] This utility model discloses a submersible gate mold in which an externally protruding block blocks one end of the inclined runner near the gate. The gate is connected to the inclined runner through an auxiliary cut-off channel. That is, an externally protruding block is added at the break point of the gate, forming an auxiliary cut-off channel on the externally protruding block. This causes the break point of the gate to shift from the connection between the inclined runner and the gate to the connection between the auxiliary cut-off channel and the gate. With the externally protruding block at least partially protruding from the gating seat and located at the gate, the break point of the gate is located deeper into the gate. This increases the distance between the break point of the gate and the gate area in the mold, reducing the wear of the broken gate on the mold and thus reducing the generation of mixed debris. Furthermore, it can reduce the wear of the broken gate on the mold based on the original direct demolding, without the need for major mold adjustments, and improves the complexity of product molding operations. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a submersible gate mold according to one embodiment of the present invention;
[0020] Figure 2 for Figure 1 A partial sectional view of the submersible gate mold shown;
[0021] Figure 3 for Figure 1 A partial view of the submersible gate mold shown;
[0022] Figure 4 for Figure 1 The cross-sectional view of the diving gate mold shown. Detailed Implementation
[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0026] This application provides a submersible gate mold. The submersible gate mold includes a mold core, a sprue seat, and at least one protruding block. The mold core has a communicating cavity and at least one sprue. The sprue seat has at least one inclined runner, which communicates with the sprue. The protruding block blocks one end of the inclined runner near the sprue, and at least partially protrudes from the sprue seat and is located at the sprue. The protruding block has an auxiliary cut-off channel, through which the sprue communicates with the inclined runner.
[0027] The aforementioned submersible gate mold has an externally protruding block blocking one end of the inclined runner near the gate. The gate is connected to the inclined runner through an auxiliary cut-off channel. That is, an externally protruding block is added at the break point of the gate, forming an auxiliary cut-off channel on the externally protruding block. This causes the break point of the gate to shift from the connection between the inclined runner and the gate to the connection between the auxiliary cut-off channel and the gate. With the externally protruding block at least partially protruding from the gating seat and located at the gate, the break point of the gate is located deeper into the gate. This increases the distance between the break point of the gate and the gate area in the mold, reducing the wear of the broken gate on the mold and thus reducing the generation of mixed debris. Furthermore, the wear of the broken gate on the mold can be reduced on the basis of the original direct demolding without the need for major mold adjustments, and the complexity of the product molding operation is reduced.
[0028] To better understand the submersible gate mold of this application, the following further explanation is provided:
[0029] Please refer to the following: Figures 1 to 4One embodiment of the submersible gate mold 10 includes a mold core 100, a gating seat 200, and at least one protruding block 300. The mold core 100 has a communicating cavity 101 and at least one gate 102. The gating seat 200 has at least one inclined runner 201, which communicates with the gate 102. The protruding block 300 blocks one end of the inclined runner 201 near the gate 102, and the protruding block 300 at least partially protrudes from the gating seat 200 and is located at the gate 102. The protruding block 300 has an auxiliary cut-off channel 301, and the gate 102 communicates with the inclined runner 201 through the auxiliary cut-off channel 301.
[0030] The aforementioned submersible gate mold 10 allows the protruding block 300 to block one end of the inclined runner 201 near the gate 102. The gate 102 is connected to the inclined runner 201 through an auxiliary glue-cutting channel 301. That is, a protruding block 300 is added at the break point of the gate, forming an auxiliary glue-cutting channel 301 on the protruding block 300. This causes the break point 20 of the gate to shift from the connection between the inclined runner 201 and the gate 102 to the connection between the auxiliary glue-cutting channel 301 and the gate 102, thus cooperating with... The convex block 300 is at least partially protruding from the gating seat 200 and located at the gating gate 102, so that the broken part 20 of the sprue is located deeper in the gating gate 102. This increases the distance between the broken part 20 of the sprue and the gating area in the mold, reduces the wear of the broken sprue on the mold, and reduces the generation of mixed debris. Furthermore, the wear of the broken sprue on the mold can be reduced on the basis of the original direct demolding without the need for major mold adjustments, and the complexity of the product molding operation is improved.
[0031] Please refer to the following: Figures 1 to 4 In one embodiment, at the connection between the auxiliary glue-breaking channel 301 and the glue inlet gate 102, the aperture of the auxiliary glue-breaking channel 301 is smaller than the aperture of the glue inlet gate 102, making the sprue easier to break and causing less burrs to be generated when it breaks.
[0032] Please refer to the following: Figures 1 to 4 In one embodiment, the diameter of the auxiliary glue-breaking channel 301 gradually increases from the end near the glue inlet gate 102 to the end near the inclined flow channel 201. This ensures smooth glue inlet, makes the sprue easier to break, and reduces the amount of burrs generated during breakage.
[0033] Please refer to the following: Figures 1 to 4In one embodiment, the diameter of the auxiliary glue-breaking channel 301 increases linearly at the end near the glue inlet gate 102 and towards the end near the inclined flow channel 201. This ensures smooth glue inlet, makes the sprue easier to break, and reduces the amount of sprue burrs generated during breakage.
[0034] Please refer to the following: Figures 1 to 4 In one embodiment, at the connection between the auxiliary glue-cutting channel 301 and the inclined flow channel 201, the aperture of the inclined flow channel 201 is greater than or equal to the aperture of the auxiliary glue-cutting channel 301, ensuring smooth glue feeding.
[0035] In one embodiment, at the connection between the auxiliary glue-cutting channel and the inclined flow channel, the inclined flow channel and the auxiliary glue-cutting channel are coaxially arranged to ensure smooth glue feeding.
[0036] Please refer to the following: Figures 1 to 4 In one embodiment, the convex block 300 and the casting seat 200 are integrally formed, which improves the structural strength and compactness of the submersible gate mold 10.
[0037] Please refer to the following: Figures 1 to 4 In one embodiment, at least one ejector pin 400 is connected to the mold core 100. The ejector pin 400 is located on the side of the cavity 101 near the gate 102, and the ejector pin 400 moves toward and away from the cavity 101. One end of the ejector pin 400 is connected to the cavity 101, which is beneficial for demolding the product.
[0038] Please refer to the following: Figures 1 to 4 In one embodiment, the end face of the ejector pin 400 near the cavity 101 is flush with the cavity surface of the cavity 101, which ensures the molding effect of the product and ensures smooth demolding of the product.
[0039] This application also provides an injection molding apparatus. One embodiment of the injection molding apparatus includes a mounting base and a submersible gate mold according to any of the above embodiments, with the mold core and the gating seat mounted together on the mounting base. Further, please refer to... Figures 1 to 4 In this embodiment, the submersible gate mold 10 includes a mold core 100, a gating seat 200, and at least one protruding block 300. The mold core 100 has a communicating cavity 101 and at least one gate 102. The gating seat 200 has at least one inclined runner 201, which communicates with the gate 102. The protruding block 300 blocks one end of the inclined runner 201 near the gate 102, and the protruding block 300 is at least partially protruding from the gating seat 200 and located at the gate 102. The protruding block 300 has an auxiliary cut-off channel 301, and the gate 102 communicates with the inclined runner 201 through the auxiliary cut-off channel 301.
[0040] The aforementioned injection molding equipment uses a submersible gate mold, which reduces the wear of the mold caused by broken gates, thereby reducing the generation of mixed debris. Furthermore, it can reduce the wear of the mold caused by broken gates on the basis of the original direct demolding, without the need for major mold adjustments, and improves the complexity of product molding operations.
[0041] Compared with the prior art, the present invention has at least the following advantages:
[0042] The submersible gate mold 10 of this invention allows the convex block 300 to block one end of the inclined runner 201 near the gate 102. The gate 102 is connected to the inclined runner 201 through an auxiliary glue-cutting channel 301. That is, an convex block 300 is added at the break point 20 of the gate, so that an auxiliary glue-cutting channel 301 is formed on the convex block 300. This causes the break point 20 of the gate to shift from the connection between the inclined runner 201 and the gate 102 to the connection between the auxiliary glue-cutting channel 301 and the gate 102. With the convex block 300 at least partially protruding from the gating seat 200 and located at the gate 102, the broken part 20 of the gate is located deeper in the gate 102. This increases the distance between the broken part 20 of the gate and the gate area in the mold, reducing the wear of the broken gate on the mold and thus reducing the generation of mixed debris. Furthermore, the wear of the broken gate on the mold can be reduced on the basis of the original direct demolding without making major adjustments to the mold, and the complexity of the product molding operation is improved.
[0043] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A submersible gate mold, comprising a mold core and a gating seat, wherein the mold core has a communicating cavity and at least one gating gate, and the gating seat has at least one inclined runner, the inclined runner being connected to the gating gate, characterized in that, The mold core is also connected to at least one convex block, which blocks one end of the inclined flow channel near the injection gate. The convex block is at least partially protruding from the casting seat and located at the injection gate. The convex block is provided with an auxiliary glue-cutting channel, and the injection gate is connected to the inclined flow channel through the auxiliary glue-cutting channel.
2. The submersible gate mold according to claim 1, characterized in that, At the junction of the auxiliary glue-cutting channel and the glue inlet gate, the diameter of the auxiliary glue-cutting channel is smaller than the diameter of the glue inlet gate.
3. The submersible gate mold according to claim 1, characterized in that, In the direction from the end of the auxiliary glue-cutting channel near the glue inlet gate to the end of the auxiliary glue-cutting channel near the inclined flow channel, the diameter of the auxiliary glue-cutting channel gradually increases.
4. The submersible gate mold according to claim 1 or 3, characterized in that, The diameter of the auxiliary glue-cutting channel increases linearly from the end near the glue inlet gate to the end near the inclined flow channel.
5. The submersible gate mold according to claim 1, characterized in that, At the junction of the auxiliary glue-breaking channel and the inclined flow channel, the aperture of the inclined flow channel is greater than or equal to the aperture of the auxiliary glue-breaking channel.
6. The submersible gate mold according to claim 1, characterized in that, At the junction of the auxiliary glue-breaking channel and the inclined flow channel, the inclined flow channel and the auxiliary glue-breaking channel are coaxially arranged.
7. The submersible gate mold according to claim 1, characterized in that, The convex block and the casting seat are integrally formed.
8. The submersible gate mold according to claim 1, characterized in that, At least one ejector pin is connected to the mold core. The ejector pin is located on the side of the cavity near the gate, and the ejector pin moves toward and away from the cavity. One end of the ejector pin is in communication with the cavity.
9. The submersible gate mold according to claim 8, characterized in that, The end face of the ejector pin near the cavity is flush with the cavity surface.
10. An injection molding machine, characterized in that, The mold includes a mounting base and a submersible gate mold according to any one of claims 1 to 9, wherein the mold core and the casting base are mounted together on the mounting base.