Split type insert structure with air permeable steel
By using a split insert structure and a snap-fit design with inexpensive steel main inserts and breathable steel secondary inserts, the problems of high cost and long processing time of breathable steel inserts are solved, achieving efficient exhaust and anti-clogging, and reducing production costs and time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 友信精密实业(深圳)有限公司
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-04
AI Technical Summary
Existing breathable steel inserts have problems such as high cost and long processing time in product injection molding, and traditional vent holes are prone to clogging, resulting in defects such as insufficient glue and burning.
The device adopts a split insert structure, including a main insert and a secondary insert. The main insert is made of inexpensive steel, while the secondary insert is made of breathable steel. They are connected by snap-fit. The main insert has an exhaust hole. The secondary insert comes into contact with the product and uses the breathability of the breathable steel to exhaust air. The air holes are cleared through the air blowing holes. The secondary insert has a T-shaped slot to snap-fit with the main insert, simplifying the processing.
This reduces the material and processing costs of breathable steel while maintaining good ventilation, avoiding pore blockage, and reducing production costs and processing time.
Smart Images
Figure CN224588518U_ABST
Abstract
Description
[Technical Field] This utility model relates to the field of product injection molding technology, and in particular to a split insert structure with breathable steel. [Background Technology] During product injection molding, defects such as insufficient glue and burning due to trapped air are frequently encountered. The usual solution is to create venting inserts based on the location of the trapped air. Common venting inserts include interlocking inserts and integral inserts. Interlocking inserts use several small inserts joined together for venting, which is limited for smaller products or areas with trapped air. Integral inserts typically use breathable steel for venting, and the bottom of the breathable steel insert requires a vent hole to allow air to flow through and prevent blockage of the pores on the breathable steel. However, this insert method results in a larger size for the breathable steel insert and a longer processing time, and because breathable steel is expensive, the overall cost is high. [Utility Model Content] To overcome the above problems, this utility model proposes a split insert structure with breathable steel that can effectively solve the above problems.
[0001] The present invention provides a technical solution to the above-mentioned technical problems by providing a split insert structure with ventilated steel, including a main insert and a secondary insert, which are connected by snap-fit; one end of the main insert is connected to the mold core, and one end of the secondary insert contacts the product, and the secondary insert is located at the air trapping position of the product; the main insert has an exhaust hole that runs vertically through it, and one end of the secondary insert contacts the upper opening of the exhaust hole; the secondary insert is made of ventilated steel. Preferably, the main insert is made of relatively inexpensive steel.
[0002] Preferably, the main insert is provided with a T-shaped locking block, and the secondary insert is provided with a T-shaped locking groove that matches the T-shaped locking block, and the T-shaped locking block is engaged in the T-shaped locking groove.
[0003] Preferably, the mold core is provided with an air blowing hole, which is connected to an exhaust hole.
[0004] Preferably, the bottom of the main insert is provided with an insert mounting platform, which is connected to the mold core.
[0005] Preferably, the upper opening of the vent hole is located at the top of the T-shaped block, and the top of the T-shaped block is in close contact with the sub-insert.
[0006] Preferably, the top of the sub-insert is in close contact with the air trapping position of the product.
[0007] Preferably, the T-shaped slot on the secondary insert is formed by wire cutting; the T-shaped block and vent hole on the main insert can be formed by ordinary drilling or milling machine.
[0008] Compared with existing technologies, the split insert structure with ventilated steel of this utility model reduces material costs and processing costs by reducing the size of the ventilated steel. At the same time, it can achieve the same venting and anti-clogging effects as existing ventilated steel inserts, meeting the practical needs of mold manufacturers and helping to reduce production costs. [Attached Image Description] Figure 1 This is an exploded view of the split insert structure with breathable steel of this utility model; Figure 2 This is a diagram showing the usage state of the split insert structure with breathable steel of this utility model.
Detailed Implementation Methods
[0009] It should be noted that in this embodiment of the invention, all directional indications (such as up, down, left, right, front, back, etc.) are limited to relative positions on the specified view, rather than absolute positions.
[0010] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0011] Please see Figure 1 and Figure 2 The present invention relates to a split insert structure with breathable steel, comprising a main insert 10 and a secondary insert 20, wherein the main insert 10 and the secondary insert 20 are connected by snap-fit.
[0012] One end of the main insert 10 is connected to the mold core 30, and one end of the secondary insert 20 is in contact with the product 40. The secondary insert 20 is located at the air trapping position of the product 40.
[0013] The main insert 10 has an exhaust hole 12 that runs vertically through it, and one end of the secondary insert 20 is in contact with the upper opening of the exhaust hole 12.
[0014] The secondary insert 20 is made of breathable steel.
[0015] The main insert 10 can be made of relatively inexpensive steel, thus saving costs.
[0016] The mold core 30 is provided with an air blowing hole 31, which is connected to the exhaust hole 12.
[0017] The main insert 10 is provided with a T-shaped locking block 11, and the secondary insert 20 is provided with a T-shaped locking groove 21 that matches the T-shaped locking block 11. The T-shaped locking block 11 is engaged in the T-shaped locking groove 21 to realize the rapid assembly of the main insert 10 and the secondary insert 20.
[0018] The bottom of the main insert 10 is provided with an insert mounting platform 13, which is connected to the mold core 30.
[0019] The upper opening of the vent hole 12 is located at the top of the T-shaped block 11. The top of the T-shaped block 11 is in close contact with the secondary insert 20, which facilitates the gas trapped in the product to be discharged through the vent steel into the vent hole 12 on the main insert 10.
[0020] The top of the sub-insert 20 is in close contact with the air trapping position of the product 40.
[0021] The T-shaped slot 21 on the sub-insert 20 is formed by wire cutting.
[0022] The T-shaped locking block 11 and the vent hole 12 on the main insert 10 can be machined using a conventional drilling machine or milling machine.
[0023] During installation, the T-shaped locking block 11 of the main insert 10 and the T-shaped locking groove 21 on the breathable steel are properly matched and then installed onto the mold core 30, and then fixed onto the mold core 30 by the insert hanger 13.
[0024] During operation, the gas trapped in the product is discharged through the venting steel into the exhaust hole 12 on the main insert 10 to meet the exhaust requirements. After working for a period of time, the blowing air can clear the air holes on the venting steel through the blowing hole 31 and the exhaust hole 12 to prevent the venting steel from becoming blocked. Through the split insert structure with venting steel of this utility model, the processing steps can be significantly reduced and the procurement and processing costs can be lowered.
[0025] Compared with existing technologies, the split insert structure with ventilated steel of this utility model allows the groove shape of the ventilated steel secondary insert 20 to be formed by wire cutting, reducing processing time and steps, and reducing processing costs; when the same size exhaust insert is required, the size of the ventilated steel is reduced, saving material costs; the main insert 10 can be made of a lower-priced material, saving material costs; the main insert 10 can be machined by a drilling machine or milling machine, reducing processing time and costs; the main insert 10 and the secondary insert 20 are connected by snap-fit, making it easy to replace even if there is partial damage or changes.
[0026] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any modifications, equivalent substitutions and improvements made within the concept of the present utility model should be included within the patent protection scope of the present utility model.
Claims
1. A split insert structure with a gas permeable steel, characterized by, It includes a main insert and a secondary insert, which are connected by a snap-fit connection; One end of the main insert is connected to the mold core, and one end of the secondary insert is in contact with the product. The secondary insert is located at the air trapping position of the product. The main insert has a through-hole, and one end of the secondary insert is in contact with the upper opening of the through-hole. The secondary insert is made of breathable steel.
2. The split insert structure with vented steel of claim 1, wherein, The main insert is made of relatively inexpensive steel.
3. The split insert structure with vented steel of claim 1, wherein, The main insert is provided with a T-shaped locking block, and the secondary insert is provided with a T-shaped locking groove that matches the T-shaped locking block, and the T-shaped locking block is engaged in the T-shaped locking groove.
4. The split insert structure with vented steel of claim 1, wherein, The mold core is provided with an air blowing hole, which is connected to the exhaust hole.
5. The split insert structure with vented steel of claim 1, wherein, The bottom of the main insert is provided with an insert mounting platform, which is connected to the mold core.
6. The split insert structure with vented steel of claim 3, wherein, The upper opening of the vent is located at the top of the T-shaped block, and the top of the T-shaped block is in close contact with the sub-insert.
7. The split insert structure with vented steel of claim 1, wherein, The top of the sub-insert is in close contact with the air trapping area of the product.
8. The split insert structure with vented steel of claim 3, wherein, The T-shaped slots on the secondary insert are formed by wire cutting; the T-shaped blocks and vent holes on the main insert can be formed by ordinary drilling or milling machines.