Exhaust insert core in mold and forming method of exhaust insert core

Abstract

The invention relates to the technical field of mold mechanisms, in particular to an exhaust insert core in a mold and a forming method of the exhaust insert core in the mold. And the second solid layer is provided with an extending structure penetrating through the connecting hole, a texture groove is formed in the connecting face of the second solid layer and the first breathable layer, the second solid layer is provided with a vent hole, the vent hole is communicated with the texture groove, and the end, away from the texture groove, of the second solid layer is communicated with an air blowing and sucking channel of the mold. The overall structure of the exhaust insert core is designed into two sections, the first section is the first breathable layer and is provided with at least one connecting hole, the second section is the second solid layer, the extension structure penetrates through the connecting hole, the connecting face of the extension structure and the first breathable layer is provided with at least one texture groove, the second solid layer is provided with the vent hole, and the vent hole is communicated with the texture groove. And one end far away from the texture groove is communicated with the air blowing and sucking channel of the mold, so that the problems of strength of a mold closing area of the exhaust insert core and hole blockage in mold processing are solved.

Description

[Technical Field]

[0001] This invention relates to the field of mold mechanism technology, and in particular to an internal venting inlet for a mold and its forming method. [Background Technology]

[0002] The venting inserts inside the mold, the mesh area of ​​which is usually directly formed by ordinary 3D printing, make it difficult to guarantee the mold strength of the mold closing area (near the break), and the venting holes are easily blocked during mold processing, thus making it difficult for 3D printed venting inserts to be widely used in mold venting.

[0003] In view of this, it is necessary to provide an in-mold venting insert and its molding method to solve the above problems. [Summary of the Invention]

[0004] The technical problem this invention aims to solve is that the venting inserts within molds, whose mesh areas are typically formed directly using conventional 3D printing, often struggle to guarantee mold strength in the mold-closing area and are prone to clogging the venting holes during mold processing. This hinders the widespread application of 3D-printed venting inserts in mold venting. Therefore, this invention provides a mold venting insert and its forming method to address these issues.

[0005] The solution to the technical problem of this invention is: a 3D printing method for an in-mold venting insert, comprising:

[0006] A first breathable layer, wherein the first breathable layer is provided with at least one connection hole;

[0007] The second solid layer covers the periphery of the first ventilated layer and has an extension structure. The extension end face of the extension structure is a break-through surface. The extension structure passes through the connecting hole to enhance the strength of the venting insert and the mold closing area, and facilitates subsequent grinding. The connection surface between the second solid layer and the first ventilated layer has a groove. The groove includes a first groove and a second groove. The first groove is located on the first ventilated layer, and the second groove is located on the second solid layer. The second solid layer has a vent hole that is connected to the groove. The end of the vent hole away from the groove is connected to the blow-suction channel of the mold to realize the venting function.

[0008] Preferably, the material of the first breathable layer includes, but is not limited to, breathable steel.

[0009] Preferably, the material of the second solid layer includes, but is not limited to, solid steel.

[0010] In addition, the present invention also provides a method for forming an in-mold venting insert, the steps of which include:

[0011] S1: Design Model: Design the exhaust inlet model that needs to be printed;

[0012] S2: 3D printing: The overall structure of the exhaust inlet is printed in a two-section area. The first section prints the first permeable layer, and the second section prints the second solid layer.

[0013] S3: Post-processing: The surface of the printed exhaust inlet is sanded and coated.

[0014] The beneficial effects of this invention are that it employs an in-mold venting insert and its molding method. By designing the overall structure of the venting insert into two sections, the first section is a first permeable layer with at least one connecting hole, and the second section is a second solid layer. The extension structure of the second solid layer passes through the connecting hole, and the connecting surface between the second solid layer and the first permeable layer has at least one textured groove. The second solid layer also has a vent hole that communicates with the textured groove. The end of the vent hole away from the textured groove is connected to the blow-suction channel of the mold to achieve the venting function. This effectively solves the strength problem of the venting insert in the mold closing area and the problem of clogging during mold processing, and enhances the strength of the venting insert. [Attached Image Description]

[0015] Figure 1 This is a schematic diagram of the structure of an internal exhaust vent of the mold according to the present invention.

[0016] Figure 2 yes Figure 1 Cross-sectional view of AA.

[0017] Figure 3 This is a schematic diagram of the structure of the first breathable layer in this invention.

[0018] Figure 4 This is a schematic diagram of the first breathable layer in this invention from another angle.

[0019] Figure 5 This is a schematic diagram of the structure of the second solid layer in this invention.

[0020] Figure 6 This is a flowchart of a molding method for an in-mold exhaust insert according to the present invention.

Detailed Implementation Methods

[0021] To further illustrate the technical means and effects of the present invention, the following detailed description is provided in conjunction with the embodiments of the present invention and their accompanying drawings.

[0022] This invention provides an internal venting device for a mold, comprising:

[0023] The first breathable layer 110 is provided with at least one connection hole 111;

[0024] The second solid layer 120 covers the periphery of the first ventilated layer 110 and has an extension structure 121. The extension end face 124 of the extension structure 121 is a break-through surface. The extension structure 121 passes through the connecting hole 111 to enhance the strength of the venting inlet 100 and the strength of the mold closing area (break-through), and is beneficial for subsequent grinding. The connection surface between the second solid layer 120 and the first ventilated layer 110 is provided with a groove. The groove includes a first groove 112 and a second groove 122. The first groove 112 is provided on the first ventilated layer 110, and the second groove 122 is provided on the second solid layer 120. The second solid layer 120 has a vent hole 123, which is connected to the groove. The end of the vent hole 123 away from the groove is connected to the blow-suction channel of the mold (not shown in the figure) to realize the venting function.

[0025] The material of the first breathable layer 110 includes, but is not limited to, breathable steel.

[0026] The material of the second solid layer 120 includes, but is not limited to, solid steel.

[0027] In addition, the present invention also provides a method for forming an in-mold venting insert, the steps of which include:

[0028] S1: Design Model: Design the exhaust inlet 100 model that needs to be printed;

[0029] S2: 3D printing: The overall structure of the exhaust inlet 100 is printed in a two-section area method. The first section prints the first permeable layer 110, and the second section prints the second solid layer 120.

[0030] S3: Post-processing: The surface of the printed exhaust inlet 100 is sanded and coated.

[0031] The beneficial effects of this invention are that it employs an in-mold venting insert and its molding method. By designing the overall structure of the venting insert 100 into two sections, the first section is a first permeable layer 110, which has at least one connecting hole 111. The second section is a second solid layer 120, the extension structure 121 of which passes through the connecting hole 111. The connecting surface between the second solid layer 120 and the first permeable layer 110 has at least one textured groove. The second solid layer 120 also has a vent hole 123, which is connected to the textured groove. The end of the vent hole 123 away from the textured groove is connected to the blow-suction channel of the mold (not shown in the figure) to realize the venting function. This effectively solves the strength problem of the venting insert 100 in the mold closing area (near the break) and the problem of clogging during mold processing, and enhances the strength of the venting insert 100.

[0032] It should be noted that the present invention is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made by those skilled in the art to the above embodiments based on the technical solutions of the present invention shall fall within the protection scope of the present invention.

Claims

1. A mold venting inlet, characterized in that, include: A first breathable layer, wherein the first breathable layer is provided with at least one connection hole; The second solid layer has an extension structure that passes through the connecting hole to enhance the strength of the venting inlet mold closing area. The connecting surface between the second solid layer and the first venting layer has a textured groove. The second solid layer has a vent hole that is connected to the textured groove. The end of the vent hole away from the textured groove is connected to the blow-suction channel of the mold.

2. The mold internal venting inlet as described in claim 1, characterized in that: The textured groove includes a first textured groove, which is disposed on the first breathable layer.

3. A mold venting inlet as described in claim 1 or 2, characterized in that: The textured groove includes a second textured groove, which is disposed on the second solid layer.

4. The mold internal venting inlet as described in claim 1, characterized in that: The second solid layer covers the periphery of the first breathable layer.

5. The mold venting inlet as described in claim 1, characterized in that: The first breathable layer is made of breathable steel.

6. The mold internal venting inlet as described in claim 1, characterized in that: The material of the second solid layer is solid steel.

7. The molding method for an in-mold venting insert as described in claim 1, comprising the following steps: S1: Design Model: Design the exhaust inlet model that needs to be printed; S2: 3D printing: The overall structure of the exhaust inlet is printed in a two-section area. The first section prints the first breathable layer, and the second section prints the second solid layer. S3: Post-processing: The surface of the printed exhaust inlet is polished and coated.

Images