Forming mold of trichloroisocyanuric acid resistant silica gel

By adding stainless steel coating on the mold contact surface and core rod, and setting fastening springs and exhaust grooves inside the mold, the corrosion problem of the mold in the trichloroisocyanuric acid environment is solved, and the durability of the mold and the molding quality of the injection molded parts are improved.

CN223071765UActive Publication Date: 2025-07-08XIAMEN MAIFENG SEAL PRODS
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Patent Information

Application Number
CN202422011965.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-19
Publication Date
2025-07-08
Estimated Expiration
2034-08-19

AI Technical Summary

Technical Problem

Existing mold materials are prone to corrosion when dealing with trichloroisocyanuric acid, resulting in short service life and high production defective rate.

Method used

Stainless steel plating is used to cover the contact surface of the mold, and a fastening spring and exhaust groove are installed inside the mold, and a stainless steel plating is added to the core rod to ensure the mold is corrosion-resistant and stable molding.

Benefits of technology

It improves the durability of the mold, extends the service cycle, reduces the productivity of defective products, and ensures the molding quality of injection molded parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a forming die for trichloroisocyanuric acid resistant silica gel. The forming die comprises a bottom cover, a die core and a top cover, a guide column is arranged on the top surface of the bottom cover, and a plurality of core penetrating rods which are arranged in a proof arrangement manner are arranged on the top surface of the bottom cover; the mold core is connected to the guide column in a sleeving mode and comprises a bottom mold and a top mold which abut against each other, a plurality of mold grooves arranged in a rectangular array mode are formed in the top mold, a plurality of mold columns which are arranged in a rectangular array mode and correspond to the mold grooves are arranged on the bottom mold, and the axes of the mold grooves and the axes of the mold columns are collinear; a top core penetrating hole penetrating through the top die and a bottom core penetrating hole penetrating through the bottom die are formed in the top die and the bottom die along the axis of the die groove and the axis of the die column. The top cover is fixedly connected with the bottom cover; stainless steel plating layers are arranged on injection molding contact surfaces of the top mold and the bottom mold; the contact surface is a stainless steel coating, so that the mold can be effectively prevented from being corroded by trichloroisocyanuric acid, the mold is more durable, the service life is prolonged, the damage rate is increased, and the production rate of defective products can be reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of molds, and more specifically, it relates to a forming mold for trichloroisocyanuric acid-resistant silica gel. Background Art

[0002] Trichloroisocyanuric acid, with the chemical formula C3Cl3N3O3 and a molecular weight of 232.41, is an organic compound, a white crystalline powder or granular solid, with a strong chlorine pungent smell.

[0003] Trichloroisocyanuric acid is an extremely strong oxidizing agent and chlorinating agent. It reacts with ammonium salts, ammonia, and urea to form explosive nitrogen trichloride. It also releases nitrogen trichloride when exposed to moisture or heat, and is flammable when in contact with organic substances; its corrosion to brass is stronger than that to carbon steel.

[0004] At present, carbon-based die steels are generally selected for injection molds: mainly medium-carbon structural steels, and representative steel grades include S45C, S48C, S50C, S55C, etc.

[0005] Pre-hardened die steels: mainly medium-carbon alloy steels with high hardenability, with very strong corrosion. Injection molds made of pure stainless steel are too expensive. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a forming mold for trichloroisocyanuric acid-resistant silica gel, a mold that can resist the corrosion of trichloroisocyanuric acid.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: a forming mold for trichloroisocyanuric acid-resistant silica gel, including a bottom cover, a mold core, and a top cover.

[0008] Guide posts are arranged on the top surface of the bottom cover, and a number of core-passing rods are arranged on the top surface of the bottom cover in a proof-arrangement.

[0009] The mold core is sleeved on the guide posts. The mold core includes a bottom mold and a top mold that are in contact with each other. A number of mold grooves are arranged in a rectangular array on the top mold, and a number of mold posts are arranged in a rectangular array on the bottom mold and corresponding to the mold grooves. The axes of the mold grooves and the mold posts are collinear. Through holes passing through the top mold (top core-passing holes) and through holes passing through the bottom mold (bottom core-passing holes) are opened on the top mold and the bottom mold along the axes of the mold grooves and the mold posts.

[0010] The top cover is fixedly connected to the bottom cover;

[0011] Stainless steel coatings are provided on the injection contact surfaces of the top mold and the bottom mold.

[0012] The contact surface with a stainless - steel coating can effectively prevent the corrosion of trichloroisocyanuric acid on the mold itself, making the mold more durable, extending its service life and reducing the damage rate, and also being able to reduce the production rate of defective products.

[0013] The present utility model is further configured as: fastening springs are provided between the bottom cover and the bottom mold and between the top cover and the top mold.

[0014] The setting of the fastening springs can ensure the tight contact between the top mold and the bottom mold, eliminating the cumbersome situation of using fixing bolts for fixation.

[0015] The present utility model is further configured as: a number of exhaust grooves are provided on the contact surface between the top mold and the bottom mold.

[0016] Through the setting of the exhaust grooves, it can be ensured that there will be no

[0017] The present utility model is further configured as: exhaust holes are provided on the side wall of the top mold corresponding to each end of the mold cavity away from the bottom mold.

[0018] Through the setting of the exhaust holes, it can be ensured that there are no defects in the exhaust problem at the tip position of the injection - molded part.

[0019] The present utility model is further configured as: the rod body of the core - passing rod is provided with a stainless - steel coating.

[0020] By setting the stainless - steel coating on the rod body, it can be ensured that the core - passing rod is not corroded.

[0021] The present utility model is further configured as: the core - passing rod at least completely penetrates the top mold and the bottom mold.

[0022] Only when the core - passing rod completely penetrates the top mold and the bottom mold can the stable formation of the injection - molded part be achieved.

[0023] In summary, the present utility model has the following beneficial effects: The contact surface with a stainless - steel coating can effectively prevent the corrosion of trichloroisocyanuric acid on the mold itself, making the mold more durable, extending its service life and reducing the damage rate, and also being able to reduce the production rate of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three - dimensional schematic diagram of the mold in the embodiment of the present utility model;

[0025] Figure 2 is an exploded view of the mold in the embodiment of the present utility model;

[0026] Figure 3 is a cross - sectional view of the mold in the embodiment of the present utility model;

[0027] Figure 4It is a three-dimensional schematic diagram of the top mold in the embodiment of the present utility model.

[0028] In the figure:

[0029] 1. Top cover; 11. Injection hole; 12. Counterbore hole;

[0030] 2. Top mold; 21. Mold cavity; 22. Piercing core hole; 23. Vent groove; 24. Vent hole;

[0031] 3. Bottom mold; 31. Mold post; 32. Bottom piercing core hole;

[0032] 4. Bottom cover; 41. Core rod; 42. Guide post;

[0033] 5. Tightening spring. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0035] It should be noted that if the terms "first", "second", etc. are involved in the description, claims and above-mentioned drawings of the present utility model, they are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances for the embodiments of the present utility model described herein. In addition, if the terms "including" and "having" and any variations thereof are involved, they are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0036] In addition, in the present utility model, if terms such as "installation", "setting", "provided with", "connection", "connection", "socket connection", etc. are involved, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] The following is combined with Figures 1-4 The utility model is described in further detail.

[0039] Example

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a molding mold for trichloroisocyanuric acid resistant silicone comprises a bottom cover 4, a mold core and a top cover 1.

[0041] Guide pillars 42 are disposed at four corners of the top surface of the bottom cover 4 , and a plurality of through-core rods 41 are disposed in an arranged manner on the top surface of the bottom cover 4 .

[0042] In this embodiment, four corners of the top cover 1 on a side away from the top mold 2 are provided with sinking grooves, and sinking holes 12 are provided in the sinking grooves.

[0043] In this embodiment, an injection hole 11 is formed on the top cover 1 .

[0044] The mold core is sleeved on the guide pillar 42, and the mold core includes a bottom mold 3 and a top mold 2 abutting against each other.

[0045] In this embodiment, a fastening screw corresponding to the guide column 42 is also provided.

[0046] The top mold 2 is provided with a plurality of mold grooves 21 arranged in a rectangular array.

[0047] The top mold 2 is also provided with an injection hole 11 , and the injection hole 11 on the top mold 2 is provided with a chamfer.

[0048] The bottom mold 3 is provided with a plurality of mold columns 31 arranged in a rectangular array and corresponding to the mold grooves 21 .

[0049] In this embodiment, if Figure 3 As shown, the mold groove 21 is a rotating body opening, and the mold column 31 is a rotating column structure. There is no corresponding connection method between the mold column 31 and the mold groove 21, but there is a certain gap between the mold column 31 and the mold groove 21 for injection molding.

[0050] The top mold 2 and the bottom mold 3 are provided with guide holes, and the guide holes are correspondingly arranged at the four corners of the top mold 2 and the bottom mold 3 .

[0051] The axes of the mold groove 21 and the mold column 31 are collinear.

[0052] Axially along the die groove 21 and the die post 31, a top through-hole 22 penetrating the top die 2 and a bottom through-hole 32 penetrating the bottom die 3 are provided on the top die 2 and the bottom die 3 respectively.

[0053] The top cover 1 is fixedly connected to the bottom cover 4.

[0054] Stainless steel coatings are provided on the injection molding contact surfaces of the top die 2 and the bottom die 3.

[0055] The injection molding contact surfaces of the top die 2 and the bottom die 3 can be understood as the inner part of the injection hole 11, the inner part of the injection groove, and the surfaces of the die post 31 and the die groove 21. A layer of stainless steel coating is plated by electroplating.

[0056] In this solution, in order to ensure that the top die 2 and the bottom die 3 are closed without a fixing method and also ensure the stability of the closed die, so that they will not be pushed open during injection molding by the injection molding machine, fastening springs 5 are provided between the bottom cover 4 and the bottom die 3 and between the top cover 1 and the top die 2; the setting of the fastening springs 5 can ensure the close contact between the top die 2 and the bottom die 3, eliminating the cumbersome situation of using fixing bolts for fixing. A number of first grooves are provided on the bottom cover 4, and a fastening spring 5 is provided in each groove. The two ends of the fastening spring 5 are respectively abutted against the bottom cover 4 and the bottom die 3; a number of second grooves are provided on the side of the top cover 1 close to the top die 2, and a fastening spring 5 is provided in each second groove. One end of the fastening spring 5 here is abutted in the second groove, and the other end is abutted against the side of the top die 2 close to the top cover 1.

[0057] In this embodiment, the injection molded parts located on the outermost layer of the edge are prone to injection molded part defects such as air holes and air pressure. By providing exhaust holes 24 on the top die 2, the effect of ensuring stable quality can be achieved. A number of exhaust grooves 23 are provided on the contact surface between the top die 2 and the bottom die 3; through the setting of the exhaust grooves 23, it can be ensured that there will be no bubbles at the bottom edge position of the injection molded part;

[0058] Exhaust holes 24 are provided on the side wall of the top die 2 corresponding to one end of each die groove 21 far from the bottom die 3; through the setting of the exhaust holes 24, it can be ensured that there are hardly any defects in the exhaust problem at the tip position of the injection molded part.

[0059] A stainless steel coating is provided on the rod body of the core-piercing rod 41; by providing the stainless steel coating on the rod body, it can be ensured that the core-piercing rod 41 is not corroded.

[0060] The core-piercing rod 41 at least completely penetrates the top die 2 and the bottom die 3; only by completely penetrating the top die 2 and the bottom die 3 with the core-piercing rod 41 can the molding of the injection molded part be stable.

[0061] Working principle: The contact surface being a stainless steel coating can effectively prevent the corrosion of the mold itself by trichloroisocyanuric acid, thus making the mold more durable, reducing the service life and damage rate, and also reducing the production rate of defective products.

[0062] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, can be combined in any way except for mutually exclusive features and / or steps.

[0063] In addition, the above specific embodiments are exemplary. Those skilled in the art can come up with various solutions inspired by the disclosure of the present utility model, and these solutions also fall within the scope of the disclosure of the present utility model and within the protection scope of the present utility model. Those skilled in the art should understand that the specification and drawings of the present utility model are illustrative and do not constitute a limitation on the claims. The protection scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A forming mold for trichloroisocyanuric acid-resistant silica gel, characterized in that, include: A bottom cover (4), wherein a guide column (42) is disposed on the top surface of the bottom cover (4), and a plurality of through-core rods (41) are disposed on the top surface of the bottom cover (4) in an arranged manner; A mold core is sleeved on the guide column (42), the mold core comprises a bottom mold (3) and a top mold (2) which are in contact with each other, the top mold (2) is provided with a plurality of mold grooves (21) arranged in a rectangular array, the bottom mold (3) is provided with a plurality of mold columns (31) arranged in a rectangular array and corresponding to the mold grooves (21), the axes of the mold grooves (21) and the mold columns (31) are colinear, and a top through-core hole (22) penetrating the top mold (2) and a bottom through-core hole (32) penetrating the bottom mold (3) are provided on the top mold (2) and the bottom mold (3) along the axes of the mold grooves (21) and the mold columns (31); A top cover (1) fixedly connected to the bottom cover (4); The injection contact surfaces of the top mold (2) and the bottom mold (3) are both provided with a stainless steel coating.

2. The forming mold of a trichloroisocyanuric acid-resistant silica gel according to claim 1, characterized in that: A fastening spring (5) is provided between the bottom cover (4) and the bottom mold (3) and between the top cover (1) and the top mold (2).

3. A molding die for trichloroisocyanuric acid-resistant silica gel according to claim 1, characterized in that: A plurality of exhaust grooves (23) are provided on the contact surfaces between the top mold (2) and the bottom mold (3).

4. The forming mold of a trichloroisocyanuric acid-resistant silica gel according to claim 1, characterized in that: An exhaust hole (24) is provided on the side wall of the top mold (2) corresponding to one end of each mold groove (21) away from the bottom mold (3).

5. The forming mold of a trichloroisocyanuric acid-resistant silica gel according to claim 1, characterized in that: The rod body of the core-penetrating rod (41) is provided with a stainless steel coating.

6. The forming mold of a trichloroisocyanuric acid-resistant silica gel according to claim 5, characterized in that: The core-penetrating rod (41) at least completely penetrates the top mold (2) and the bottom mold (3).