Die core cooling water well sealing assembly and device thereof

Abstract

The utility model provides a mold core cooling water well sealing assembly and device, and the mold core cooling water well sealing assembly comprises a mold core, a water separation sheet, an end cover main body and a sealing assembly. And the mold core is provided with a cooling water well communicated with the cooling water channel. A plug at one end of the waterproof sheet is in threaded connection with the inner circumferential wall of a wellhead of the cooling water well, and the other end of the waterproof sheet extends to the deep part of the cooling water well; the end cover body is located on the end side of the mold core. The seal assembly includes an annular resilient seal. The inner diameter of the annular elastic sealing piece is larger than the diameter of a wellhead of the cooling water well, the annular elastic sealing piece surrounds the wellhead of the cooling water well, and the annular elastic sealing piece is elastically pressed between the end cover body and the mold core, so that the secondary sealing effect on the wellhead of the cooling water well is achieved. And therefore, the cooling liquid cannot permeate to the outside of the mold core from the wellhead of the cooling water well, and the overall sealing performance of the cooling water well is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection mold production, in particular to a core cooling water well sealing component and its device. Background Technique

[0002] In the actual process of producing plastic products with injection molds, it is necessary to open cooling water channels in the injection molds to introduce cooling liquid (such as low-temperature water) into the cooling water channels and make it circulate continuously. By using the principle of heat exchange, the excess heat in the mold cavity is taken out of the mold to achieve the cooling of the plastic products.

[0003] As Figure 1 shown, for plastic products with deep cavity structures, designers often choose to set water isolation sheets in the cooling wells of the cores, so as to divide the circular cooling water channels into two semi-circular cooling water channels, so that the cooling liquid flows to one side of the water isolation sheet. When the cooling liquid reaches the end of the water isolation sheet, it then flows back to the other side of the water isolation sheet and finally flows back to the cooling water channel. Through the setting of the water isolation sheet, the cooling liquid can be diverted to the deep part of the cooling water well of the core to achieve efficient cooling of the deep cavity part of the plastic product. For example, the plastic shells, plastic back covers or plastic brackets of electronic devices, etc., among which there are many plastic products with deep cavity structures.

[0004] At present, the water isolation sheet is mainly sealed by manually applying sealant to the plug at the end of the water isolation sheet and then thread-tightening the plug at the wellhead of the cooling water well. This makes the sealing performance between the plug and the wellhead often depend on the strength of manually tightening the plug; if the manually tightened strength is too large, the external thread of the plug is prone to slipping teeth and the sealing effect of the sealant fails, resulting in water leakage at the wellhead of the cooling water well; if the manually tightened strength is too small, there is prone to insufficient sealing performance between the plug and the wellhead, which will also cause water leakage at the wellhead of the cooling water well, making the sealing performance of the cooling water well poor. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a core cooling water well sealing component and its device that can effectively improve the sealing performance of the cooling water well and prevent water leakage at the wellhead of the cooling water well.

[0006] The purpose of the utility model is realized by the following technical solutions:

[0007] A core cooling water well sealing component includes:

[0008] A core, which is provided with a cooling water well communicating with the cooling water channel;

[0009] A water-blocking sheet, the plug at one end of the water-blocking sheet is threadedly connected to the inner peripheral wall of the wellhead of the cooling water well, and the other end of the water-blocking sheet extends to the deep part of the cooling water well;

[0010] An end cap body, located at the end side of the mold core;

[0011] A sealing assembly, including an annular elastic seal; the inner diameter of the annular elastic seal is larger than the diameter of the wellhead of the cooling water well, the annular elastic seal is arranged around the wellhead of the cooling water well, and the annular elastic seal is elastically pressed between the end cap body and the mold core.

[0012] In one embodiment, a positioning sunk groove communicating with the cooling water well is formed on the end side of the mold core, and the end cap body is located in the positioning sunk groove and connected to the mold core.

[0013] In one embodiment, the end cap body is detachably connected to the mold core.

[0014] In one embodiment, a sealing groove communicating with the positioning sunk groove is formed at the bottom of the positioning sunk groove, and the sealing groove is arranged around the wellhead of the cooling water well;

[0015] An annular insertion portion is formed on the end face of the end cap body.

[0016] In one embodiment, the sealing assembly further includes a sealing rubber ring, the sealing rubber ring is sleeved on the outer peripheral wall of the annular insertion portion, and the annular insertion portion extends into the sealing groove; and / or,

[0017] The annular insertion portion is located outside the annular elastic seal.

[0018] In one embodiment, the end cap body is an integrally formed structure.

[0019] In one embodiment, the water-blocking sheet is an integrally formed structure.

[0020] In one embodiment, a partition drainage portion is formed at the other end of the water-blocking sheet, and the partition drainage portion extends to the deep part of the cooling water well and is in interference fit with the inner wall of the cooling water well.

[0021] A mold core cooling water well sealing device, including the mold core cooling water well sealing assembly according to any one of the above embodiments.

[0022] Compared with the prior art, the present utility model has at least the following advantages:

[0023] Regardless of whether the actual force of manually tightening the plug on the wellhead of the cooling water well is large or small, the annular elastic seal can be arranged around the wellhead of the cooling water well, and at the same time, the annular elastic seal is elastically pressed between the end cover body and the mold core, so as to form a secondary sealing effect on the wellhead of the cooling water well, thereby preventing the cooling liquid from penetrating from the wellhead of the cooling water well to the outside of the mold core, effectively improving the overall sealing performance of the cooling water well. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0025] Figure 1 Structural schematic diagram of the water isolation sheet of the prior art arranged in the cooling water well;

[0026] Figure 2 Exploded structural schematic diagram of the mold core cooling water well sealing assembly in one embodiment;

[0027] Figure 3 For Figure 2 Partial structural schematic diagram of the mold core cooling water well sealing assembly shown;

[0028] Figure 4 For Figure 2 Cross-sectional view of the mold core cooling water well sealing assembly shown;

[0029] Figure 5 For Figure 4 Partial enlarged schematic diagram of part A of the mold core cooling water well sealing assembly shown. Detailed Description of the Embodiments

[0030] To facilitate the understanding of the present invention, the following will describe the present invention more comprehensively with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the specification of this utility model herein are only for the purpose of describing specific implementations and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] The present disclosure provides a mold core cooling water well sealing assembly, including a mold core, a water isolation sheet, an end cover body and a sealing assembly. The mold core is provided with a cooling water well communicating with a cooling water channel; a plug at one end of the water isolation sheet is threadedly connected to the inner peripheral wall of the wellhead of the cooling water well, and the other end of the water isolation sheet extends to the deep part of the cooling water well; the end cover body is located at the end side of the mold core; the sealing assembly includes an annular elastic sealing member; the inner diameter of the annular elastic sealing member is greater than the diameter of the wellhead of the cooling water well, the annular elastic sealing member is arranged around the wellhead of the cooling water well, and the annular elastic sealing member is elastically pressed between the end cover body and the mold core.

[0034] Please refer to Figures 1 to 5 , in order to better understand the mold core cooling water well sealing assembly 10 of the present application, the mold core cooling water well sealing assembly 10 is further explained as follows:

[0035] A mold core cooling water well sealing assembly 10 in an embodiment includes a mold core 100, a water isolation sheet 200, an end cover body 300 and a sealing assembly 400. The mold core 100 is provided with a cooling water well 101 communicating with a cooling water channel; a plug at one end of the water isolation sheet 200 is threadedly connected to the inner peripheral wall of the wellhead of the cooling water well 101, and the other end of the water isolation sheet 200 extends to the deep part of the cooling water well 101; the end cover body 300 is located at the end side of the mold core 100; the sealing assembly 400 includes an annular elastic sealing member 410; the inner diameter of the annular elastic sealing member 410 is greater than the diameter of the wellhead of the cooling water well 101, the annular elastic sealing member 410 is arranged around the wellhead of the cooling water well 101, and the annular elastic sealing member 410 is elastically pressed between the end cover body 300 and the mold core 100.

[0036] In this embodiment, regardless of whether the actual force for manually tightening the plug on the wellhead of the cooling water well 101 is large or small, the annular elastic seal 410 can be arranged around the wellhead of the cooling water well 101, and at the same time, the annular elastic seal 410 is elastically pressed between the end cover body 300 and the mold core 100, so as to form a secondary sealing effect on the wellhead of the cooling water well 101, thereby preventing the cooling liquid from penetrating from the wellhead of the cooling water well 101 to the outside of the mold core 100, and effectively improving the overall sealing performance of the cooling water well 101.

[0037] As Figures 3 to 5 shown, in one embodiment, a positioning sink 102 communicating with the cooling water well 101 is formed on the end side of the mold core 100, and the end cover body 300 is located in the positioning sink 102 and connected to the mold core 100. In one embodiment, the end cover body 300 is detachably connected to the mold core 100.

[0038] It should be noted that, in this embodiment, the end cover body 300 is threadedly fastened to the mold core 100 by screws.

[0039] It can be understood that the user only needs to apply sealant to the plug, then tighten the plug on the wellhead of the cooling water well 101 with a moderate force, and then set the end cover body 300 in the positioning sink 102, and fix and install the end cover body 300 in the positioning sink 102 by screws; in addition, when the user unscrews the fastening screws on the end cover body 300, the end cover body 300 can be easily taken out of the positioning sink 102 by the rebound reaction force of the annular elastic seal 410, which is convenient for installation and disassembly and has good practicability. Specifically, the annular elastic seal 410 can be an integrally formed elastic rubber part or other elastic parts.

[0040] As Figures 2 to 5 shown, in one embodiment, a sealing groove 103 communicating with the positioning sink 102 is formed at the bottom of the positioning sink 102, and the sealing groove 103 is arranged around the wellhead of the cooling water well 101; an annular insertion part 310 is formed on the end face of the end cover body 300. In one embodiment, the sealing assembly 400 further includes a sealing rubber ring 420, the sealing rubber ring 420 is sleeved on the outer peripheral wall of the annular insertion part 310, and the annular insertion part 310 extends into the sealing groove 103. In one embodiment, the annular insertion part 310 is located outside the annular elastic seal.

[0041] It can be understood that during the initial trial - mold stage of the injection mold, it is necessary to frequently disassemble and assemble the mold to check the sealing performance of the cooling water channels of the injection mold. Therefore, there is an easy problem of dirt on the surface of the annular elastic seal 410, resulting in a reduction in the sealing effect after the installation of the annular elastic seal 410. For this reason, in this embodiment, by sleeving the sealing rubber ring 420 on the outer peripheral wall of the annular insertion portion 310, the inner wall of the sealing rubber ring 420 is hermetically abutted against the inner wall of the sealing groove 103. In this way, an additional sealing barrier can be further provided for the annular elastic seal 410, preventing the cooling liquid from penetrating to the outside of the mold core 100.

[0042] As Figure 2 shown, in one embodiment, the end - cover main body 300 is an integrally formed structure. It can be understood that the integrally formed structural design of the end - cover main body 300 can also provide good structural strength support for the end - cover main body 300.

[0043] As Figure 4 and Figure 5 shown, in one embodiment, the water - separating sheet 200 is an integrally formed structure. In one embodiment, the other end of the water - separating sheet 200 is formed with a partition drainage portion 210, and the partition drainage portion 210 extends to the deep part of the cooling water well 101 and is in interference fit with the inner wall of the cooling water well 101.

[0044] It should be noted that in this embodiment, an external thread matching the internal thread of the inner wall of the well - mouth of the cooling water well 101 is provided on the outer peripheral wall of the plug of the water - separating sheet 200, so that the plug of the water - separating sheet 200 is thread - connected to the inner wall of the well - mouth of the cooling water well 101.

[0045] It can be understood that the integrally formed water - separating sheet 200 has good structural strength. Therefore, when the user tightens the plug of the water - separating sheet 200 on the inner wall of the well - mouth of the cooling water well 101, there is no need to worry about the problem that the partition drainage portion 210 is distorted relative to the plug of the water - separating sheet 200 due to a large frictional resistance caused by the interference fit between the partition drainage portion 210 and the inner wall of the cooling water well 101.

[0046] This application also provides a mold - core cooling - water - well sealing device, including the mold - core cooling - water - well sealing assembly 10 described in any of the above embodiments.

[0047] In this embodiment, regardless of whether the actual force for manually tightening the plug on the well - mouth of the cooling water well is large or small, by arranging the annular elastic seal around the well - mouth of the cooling water well and elastically pressing the annular elastic seal between the end - cover main body and the mold core, a secondary sealing effect on the well - mouth of the cooling water well can be formed, thereby preventing the cooling liquid from penetrating from the well - mouth of the cooling water well to the outside of the mold core and effectively improving the overall sealing performance of the cooling water well.

[0048] Compared with the prior art, the utility model has at least the following advantages:

[0049] Regardless of whether the actual force for manually tightening the plug on the wellhead of the cooling water well is large or small, by arranging the annular elastic seal around the wellhead of the cooling water well and elastically pressing the annular elastic seal between the end cover body and the mold core, a secondary sealing effect on the wellhead of the cooling water well can be formed, so that the cooling liquid cannot penetrate from the wellhead of the cooling water well to the outside of the mold core, effectively improving the overall sealing performance of the cooling water well.

[0050] The above-described embodiments only represent several implementation manners of the utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A core cooling water well sealing assembly, characterized in that, Comprising: A mold core, provided with a cooling water well communicating with a cooling water channel; A water separation sheet, one end plug of the water separation sheet is threadedly connected to the inner peripheral wall of the wellhead of the cooling water well, and the other end of the water separation sheet extends to the deep part of the cooling water well; An end cover body, located at the end side of the mold core; A sealing assembly, including an annular elastic seal; the inner diameter of the annular elastic seal is larger than the diameter of the wellhead of the cooling water well, the annular elastic seal is arranged around the wellhead of the cooling water well, and the annular elastic seal is elastically pressed between the end cover body and the mold core.

2. The mold core cooling water well sealing assembly according to claim 1, wherein, A positioning sunk groove communicating with the cooling water well is provided at the end side of the mold core, and the end cover body is located in the positioning sunk groove and connected to the mold core.

3. The mold core cooling water well sealing assembly according to claim 1, wherein The end cover body is detachably connected to the mold core.

4. The mold core cooling water well sealing assembly according to claim 2, characterized in that, A sealing groove communicating with the positioning sunk groove is provided at the bottom of the positioning sunk groove, and the sealing groove is arranged around the wellhead of the cooling water well; An annular insertion part is formed on the end face of the end cover body.

5. The mold core cooling water well sealing assembly according to claim 4, characterized in that, The sealing assembly further includes a sealing rubber ring, the sealing rubber ring is sleeved on the outer peripheral wall of the annular insertion part, and the annular insertion part extends into the sealing groove; and / or, The annular insertion part is located outside the annular elastic seal.

6. The mold core cooling water well sealing assembly according to claim 1, characterized in that, The end cover body is an integrally formed structure.

7. The mold core cooling water well sealing assembly according to claim 1, wherein, The water separation sheet is an integrally formed structure.

8. The mold core cooling water well sealing assembly according to claim 1, characterized in that, A separation and drainage part is formed at the other end of the water separation sheet, and the separation and drainage part extends to the deep part of the cooling water well and is in interference fit with the inner wall of the cooling water well.

9. A sealing device for the cooling water well of a mold core, characterized in that, Comprising the mold core cooling water well sealing assembly according to any one of claims 1-8.

Images