Exhaust insert in mold and forming method thereof

Abstract

The invention relates to the technical field of mold mechanisms, in particular to an exhaust insert in a mold and a forming method of the exhaust insert. A second breathable layer; at least one ventilation groove is formed in the connecting face of the third solid layer and the second ventilation layer, a ventilation hole is formed in the third solid layer, the ventilation hole is communicated with the ventilation groove, and the end, away from the ventilation groove, of the ventilation hole is communicated with an air blowing and sucking channel of the mold. The first section is a first breathable layer, the second section is a second breathable layer, the third section is a third solid layer, at least one vent groove is formed in the connecting face of the third solid layer and the second breathable layer, vent holes are formed in the third solid layer and communicated with the vent grooves, and the ends, away from the vent grooves, of the vent holes are communicated with an air blowing and sucking channel of a mold. The exhaust insert is used for realizing an exhaust function, so that the problem of hole blockage of the exhaust insert in mold processing is effectively solved, and maintenance and cleaning are facilitated.

Description

[Technical Field]

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

[0002] The venting inserts inside the mold, the mesh area of ​​which is usually directly formed by ordinary 3D printing, are prone to clogging the venting holes during mold processing, which makes 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 venting inserts designed within molds, whose mesh areas are generally formed directly using conventional 3D printing, are prone to clogging the venting holes during mold processing, thus hindering the widespread application of 3D-printed venting inserts in mold venting. Therefore, this invention provides a mold-in-mold venting insert and its forming method to solve the above problem.

[0005] The solution to the technical problem of this invention is: an internal venting insert for a mold, comprising:

[0006] First breathable layer;

[0007] Second breathable layer;

[0008] The third solid layer covers the periphery of the first and second ventilated layers, which is beneficial to the strength of the venting insert and suitable for subsequent grinding. The connection surface between the third solid layer and the second ventilated layer is provided with at least one venting groove, including a first venting groove, a second venting groove, a third venting groove and a fourth venting groove. The first venting groove is located on the second ventilated layer, and there is at least one second venting groove on the second ventilated layer. The second venting groove and the first venting groove are vertically staggered. There is at least one third venting groove on the third solid layer, and the fourth venting groove and the third venting groove are vertically staggered. The third solid layer is provided with vent holes, which are connected to the venting grooves. The end of the vent hole away from the venting groove is connected to the blow-suction channel of the mold to realize the venting function.

[0009] Preferably, the second breathable layer has better air permeability than the first breathable layer, which is beneficial for exhaust and blowing.

[0010] Preferably, the materials of the first and second breathable layers include, but are not limited to, breathable steel.

[0011] Preferably, the material of the third solid layer includes, but is not limited to, solid steel.

[0012] In addition, the present invention also provides a method for forming an in-mold venting insert, the steps of which include:

[0013] S1: Design Model: Design the exhaust insert model that needs to be printed;

[0014] S2: 3D printing: The overall structure of the exhaust insert is printed in three sections. The first section prints the first breathable layer, the second section prints the second breathable layer, and the third section prints the third solid layer.

[0015] S3: Post-processing: The surface of the printed exhaust insert is polished and coated.

[0016] 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 three sections: a first section is a first permeable layer, a second section is a second permeable layer, and a third section is a third solid layer. The connection surface between the third solid layer and the second permeable layer is provided with at least one venting groove, and the third solid layer is provided with a venting hole. The venting hole is connected to the venting groove, and the end of the venting hole away from the venting groove is connected to the blow-suction channel of the mold to realize the venting function. This effectively solves the problem of clogging of the venting insert in mold processing, and is also beneficial for maintenance, cleaning, and reuse. [Attached Image Description]

[0017] Figure 1 This is a schematic diagram of the structure of an internal venting insert for a mold according to the present invention.

[0018] Figure 2 yes Figure 1 Cross-sectional view of AA.

[0019] Figure 3 This is a schematic diagram of the structure of the second breathable layer in this invention.

[0020] Figure 4 This is a schematic diagram of the structure of the third entity layer in this invention.

[0021] Figure 5 This is a flowchart of a molding method for an in-mold venting insert according to the present invention.

Detailed Implementation Methods

[0022] 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.

[0023] This invention provides an internal venting insert for a mold, comprising:

[0024] First breathable layer 110;

[0025] Second breathable layer 120;

[0026] The third solid layer 130 covers the periphery of the first ventilated layer 110 and the second ventilated layer 120, which is beneficial to the strength of the exhaust insert 100 and suitable for subsequent grinding. The connection surface between the third solid layer 130 and the second ventilated layer 120 is provided with at least one ventilation groove, including a first ventilation groove 121, a second ventilation groove 122, a third ventilation groove 131, and a fourth ventilation groove 132. The first ventilation groove 121 is disposed on the second ventilated layer 120, and the second ventilation groove 132 is disposed on the second ventilated layer 120. At least one air groove 122 is provided on the second ventilated layer 120. The second air groove 122 and the first air groove 121 are vertically staggered. At least one third air groove 131 is provided on the third solid layer 130. The fourth air groove 132 and the third air groove 131 are vertically staggered. The third solid layer 130 is provided with an air hole 133, which is connected to the air groove. The end of the air hole 133 away from the air groove is connected to the blowing and suction channel of the mold (not shown in the figure) to realize the exhaust function.

[0027] The second breathable layer 120 has better breathability than the first breathable layer 110, which is beneficial for exhaust and washing.

[0028] The materials of the first breathable layer 110 and the second breathable layer 120 include, but are not limited to, breathable steel.

[0029] The material of the third solid layer 130 includes, but is not limited to, solid steel.

[0030] In addition, the present invention also provides a method for forming an in-mold venting insert, the steps of which include:

[0031] S1: Design Model: Design the exhaust insert 100 model to be printed;

[0032] S2: 3D printing: The overall structure of the exhaust insert 100 is printed in three sections. The first section prints the first breathable layer 110, the second section prints the second breathable layer 120, and the third section prints the third solid layer 130.

[0033] S3: Post-processing: The surface of the printed exhaust insert 100 is polished and coated, which helps to improve the appearance quality and durability of the exhaust insert 100.

[0034] In this embodiment, the thickness of the first breathable layer 110 is 3mm, and the pore size of the first breathable layer 110 is controlled between 0.04 and 0.05mm, which is beneficial for plastic venting.

[0035] 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 three sections, the first section is a first permeable layer 110, the second section is a second permeable layer 120, and the third section is a third solid layer 130. The connection surface between the third solid layer 130 and the second permeable layer 120 is provided with at least one ventilation groove, and the third solid layer 130 is provided with a ventilation hole 133. The ventilation hole 133 is connected to the ventilation groove, and the end of the ventilation hole 133 away from the ventilation 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 problem of clogging of the venting insert 100 in mold processing, and is also beneficial for maintenance, cleaning, and reuse.

[0036] 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 insert, characterized in that, include: First breathable layer; Second breathable layer; The third solid layer has at least one ventilation groove on the connection surface between the third solid layer and the second breathable layer. The third solid layer has a ventilation hole that is connected to the ventilation groove. The end of the ventilation hole away from the ventilation groove is connected to the blowing and suction channel of the mold.

2. The mold internal venting insert as described in claim 1, characterized in that: The second breathable layer has better air permeability than the first breathable layer, which is beneficial for exhaust and blowing.

3. The mold internal venting insert as described in claim 1, characterized in that: The ventilation channel includes a first ventilation channel, which is disposed on the second breathable layer.

4. A mold venting insert as described in claim 1 or 3, characterized in that: The ventilation slot includes a third ventilation slot, which is disposed on the third solid layer.

5. The mold internal venting insert as described in claim 3, characterized in that: The ventilation slot includes a second ventilation slot, and at least one second ventilation slot is provided on the second breathable layer. The second ventilation slot and the first ventilation slot are arranged vertically and alternately.

6. The mold internal venting insert as described in claim 4, characterized in that: The ventilation slot includes a fourth ventilation slot, and at least one fourth ventilation slot is provided on the third solid layer. The fourth ventilation slot and the third ventilation slot are arranged vertically and alternately.

7. The mold internal venting insert as described in claim 1, characterized in that: The third solid layer covers the periphery of the first breathable layer and the second breathable layer.

8. The mold internal venting insert structure as described in claim 1, characterized in that: The first and second breathable layers are made of breathable steel.

9. The mold internal venting insert structure as described in claim 1, characterized in that: The material of the third solid layer is solid steel.

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

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