3D printing resin mold

Abstract

The utility model discloses a 3D printing resin mould which comprises a mould base, a lower mould body, an upper mould body and a cavity body, the lower mould body is fixed at the top of the mould base, the upper mould body is clamped on the surface of the lower mould body, the cavity body is integrally formed in the lower mould body, and the 3D printing resin mould further comprises a cooling mechanism. After a cooling mechanism is arranged at a lower mold body of the 3D printing resin mold around a mold cavity body, an inner surrounding cold groove is formed in the lower mold body outside the mold cavity body to surround the mold cavity body, so that a cold cavity capable of containing liquid exists between the inner surrounding cold groove and the mold cavity body, and the cold cavity is connected with a barrel mold temperature controller to obtain circulating cooling liquid for cooling; and meanwhile, wind power blown into the peripheral cold groove from the air inlet holes by the fan of the cooling mechanism can take away heat at the inner peripheral cold groove, and then hot air is discharged out of the lower die body from the air outlet, so that heat conducted at the inner peripheral cold groove by the cavity is taken away by the wind power, and materials in the cavity are assisted to be rapidly cooled and formed.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing molds, in particular to a 3D printing resin mold. Background Art

[0002] 3D printer is a kind of rapid prototyping technology, also known as additive manufacturing. It is a technology that constructs objects by printing layer by layer based on digital model files and using adhesive materials. It is usually achieved by using digital technology material printers. It is often used in mold manufacturing, industrial design and other fields, and then gradually used for the direct manufacturing of some products. The advantages of 3D printed molds include rapid prototyping, lower production costs, reducing the time and cost of design iterations, and the ability to produce molds with complex geometries.

[0003] When the 3D printing resin mold of the prior art is performing material injection molding, the molded product can be cooled in the mold cavity. This mold usually has a cooling channel in the shell near the cavity, and then the coolant is circulated into the cooling channel by the mold temperature controller to take away the heat dissipated from the cavity. However, since the cooling channel of the mold cavity is arranged in the thicker mold body of the mold, the mold cavity can often only rely on the coolant circulation of the mold temperature controller to take away the heat, resulting in low molding cooling efficiency in the 3D printing resin mold. For this reason, we propose a 3D printing resin mold. Utility Model Content

[0004] The main purpose of the utility model is to provide a 3D printing resin mold. After a cooling mechanism is arranged around a cavity at a lower mold body of the 3D printing resin mold, an inner surrounding cold groove is arranged at the lower mold body outside the cavity to surround the cavity, so that a cold cavity that can accommodate liquid exists between the inner surrounding cold groove and the cavity, and the cold cavity connected to a mold temperature controller obtains circulating coolant for cooling, so that the cavity can be efficiently cooled for rapid molding of the product; at the same time, the wind force blown into the outer cold groove from the air inlet by the fan of the cooling mechanism can take away the heat at the inner surrounding cold groove, and then the hot air is discharged from the lower mold body to the outside from the exhaust port, so that the heat conducted by the cavity at the inner surrounding cold groove is taken away by the wind, so that the liquid-cooled inner surrounding cold groove can provide a more efficient combined cooling method for the cavity, assisting the rapid cooling and molding of the material in the cavity, and can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A 3D printing resin mold, comprising a mold base, a lower mold body, an upper mold body and a cavity body. The lower mold body is fixed to the top of the mold base, and the upper mold body is clamped on the surface of the lower mold body. The cavity body is integrally formed in the lower mold body. It further includes a cooling mechanism, which includes an inner cooling groove, an outer cooling groove, a liquid connecting pipe, an air exhaust port, an air inlet hole and a fan. An inner cooling groove is formed in the lower mold body outside the cavity body, and a cooling cavity is formed by surrounding the inner cooling groove outside the cavity body. An outer cooling groove is formed in the lower mold body outside the inner cooling groove, and liquid connecting pipes communicating with the cooling cavity are symmetrically fixed outside the groove wall of the inner cooling groove. The liquid connecting pipes pass through the outer cooling groove and extend out of the lower mold body, and air exhaust ports are formed at the inner wall of the outer cooling groove on both sides of the liquid connecting pipes. The outer air outlets of the air exhaust ports are formed on the outer surface of the lower mold body. Air inlet holes communicating with the outer cooling groove are symmetrically formed on the outer surfaces of the other two sides of the lower mold body away from the liquid connecting pipes, and a fan covering the air inlet holes is locked to the surface of the lower mold body with bolts. A top hole is vertically formed in the middle of the cavity body, and a core pipe is clamped in the top hole. The core pipe extends downward through the bottom surface of the lower mold body, and a top rod is embedded downward into the orifice of the top hole in the core pipe. The top rod is welded to the telescopic rod head of the electric push rod, and the electric push rod is installed on the surface of the mold base below the lower mold body.

[0007] Further, a bolt is screwed between the seat plate of the electric push rod and the mold base below the lower mold body;

[0008] By adopting the above technical solution, the seat plate of the electric push rod can be screwed and installed on the surface of the mold base with the help of bolts.

[0009] Further, an annular inner groove is recessed on the surface of the cavity body in the inner cooling groove;

[0010] By adopting the above technical solution, the coolant provided by the mold temperature controller can enter the inner cooling groove of the cavity body, thereby improving the cooling effect of the cavity body.

[0011] Further, a threaded pipe body is provided at the outer pipe orifice of the liquid connecting pipe extending out of the lower mold body;

[0012] By adopting the above technical solution, the threaded pipe body of the liquid connecting pipe extending out of the lower mold body can be screwed to the liquid supply pipeline of the mold temperature controller for connection.

[0013] Further, the diameter of the hole cavity of the top hole is the same as the diameter of the pipe body of the core pipe, and the diameter of the upper orifice of the top hole is the same as the diameter of the rod body of the top rod;

[0014] By adopting the above technical solution, the core pipe can be clamped into the top hole, and then the top rod can extend from the core pipe into the upper orifice of the top hole for a tight fit.

[0015] Further, a bolt is screwed between the base of the fan and the lower mold body, and the air outlet of the fan faces the air inlet hole;

[0016] By adopting the above technical solution, after the base of the fan is locked at the lower die body with bolts, the fan can blow wind into the air inlet hole.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] After the utility model arranges a cooling mechanism around the cavity body at the lower die body of the 3D printing resin mold, there is an inner surrounding cooling groove at the lower die body outside the cavity body to surround the cavity body, so that there is a cooling cavity that can accommodate liquid between the inner surrounding cooling groove and the cavity body. The cooling cavity is connected to a mold temperature machine to obtain circulating coolant for cooling, so that the cavity body can be efficiently cooled for rapid prototyping of products;

[0019] At the same time, the wind blown into the outer surrounding cooling groove by the fan of the cooling mechanism can take away the heat at the inner surrounding cooling groove, and then the hot air is discharged from the air outlet to the outside of the lower die body, so that the heat conducted by the cavity body at the inner surrounding cooling groove is taken away by the wind, so that the liquid-cooled inner surrounding cooling groove can provide a more efficient combined cooling method for the cavity body to assist the material in the cavity body to be quickly cooled and formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a 3D printing resin mold of the utility model.

[0021] Figure 2 It is a schematic diagram of the separation of the lower die body and the upper die body of a 3D printing resin mold of the utility model.

[0022] Figure 3 It is an exploded view of the cooling mechanism of a 3D printing resin mold of the utility model.

[0023] In the figure: 1, mold base; 2, lower die body; 3, upper die body; 4, cavity body; 5, cooling mechanism; 6, inner surrounding cooling groove; 7, outer surrounding cooling groove; 8, liquid connection pipe; 9, air outlet; 10, air inlet hole; 11, fan; 12, top hole; 13, core pipe; 14, ejector rod; 15, electric push rod; 16, annular inner groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0025] Such as Figures 1-3As shown in the figure, a 3D printing resin mold includes a mold base 1, a lower mold body 2, an upper mold body 3 and a cavity body 4. The lower mold body 2 is fixed to the top of the mold base 1, and the upper mold body 3 is clamped on the surface of the lower mold body 2. The cavity body 4 is integrally formed inside the lower mold body 2. It also includes a cooling mechanism 5, which includes an inner cooling groove 6, an outer cooling groove 7, a liquid connection pipe 8, an air exhaust port 9, an air inlet hole 10 and a fan 11. An inner cooling groove 6 is opened inside the lower mold body 2 outside the cavity body 4, and a cold cavity is formed by surrounding the inner cooling groove 6 outside the cavity body 4. An outer cooling groove 7 is opened inside the lower mold body 2 outside the inner cooling groove 6, and liquid connection pipes 8 communicating with the cold cavity are symmetrically fixed outside the groove wall of the inner cooling groove 6. The liquid connection pipes 8 pass through the outer cooling groove 7 and extend out of the lower mold body 2, and air exhaust ports 9 are opened at the inner wall of the outer cooling groove 7 on both sides of the liquid connection pipes 8. The outer air outlet of the air exhaust port 9 is opened on the outer surface of the lower mold body 2. Air inlet holes 10 communicating with the outer cooling groove 7 are symmetrically opened on the outer surfaces of the other two sides of the lower mold body 2 away from the liquid connection pipes 8, and a fan 11 covering the air inlet holes 10 is locked to the surface of the lower mold body 2 with bolts. A top hole 12 is vertically opened in the middle of the cavity body 4, and a core pipe 13 is inserted into the top hole 12. The core pipe 13 extends downward through the bottom surface of the lower mold body 2, and a top rod 14 is embedded downward into the orifice of the top hole 12 inside the core pipe 13. The top rod 14 is welded to the telescopic rod head of an electric push rod 15, and the electric push rod 15 is installed on the surface of the mold base 1 below the lower mold body 2.

[0026] Among them, a bolt is screwed between the seat plate of the electric push rod 15 and the mold base 1 below the lower mold body 2;

[0027] By adopting the above technical solution, the seat plate of the electric push rod 15 can be screwed and installed on the surface of the mold base 1 with bolts for installation.

[0028] Among them, an annular inner groove 16 is recessed and opened on the surface of the cavity body 4 inside the inner cooling groove 6;

[0029] By adopting the above technical solution, the coolant provided by the mold temperature controller can enter the inner cooling groove 6 of the cavity body 4, thereby improving the cooling effect of the cavity body 4.

[0030] Among them, a threaded pipe body is provided at the outer pipe orifice of the liquid connection pipe 8 extending out of the lower mold body 2;

[0031] By adopting the above technical solution, the threaded pipe body of the liquid connection pipe 8 extending out of the lower mold body 2 can be screwed to the liquid supply pipeline of the mold temperature controller for connection.

[0032] Among them, the cavity diameter of the top hole 12 is the same as the tube diameter of the core pipe 13, and the upper orifice diameter of the top hole 12 is the same as the rod diameter of the top rod 14;

[0033] By adopting the above technical solution, the core tube 13 can be snapped into the top hole 12, and then the ejector rod 14 can extend from the core tube 13 to the upper orifice of the top hole 12 for a tight plugging.

[0034] Wherein, a bolt is screwed between the base of the blower 11 and the lower die body 2, and the air outlet of the blower 11 faces the air inlet hole 10;

[0035] By adopting the above technical solution, after the base of the blower 11 is locked to the lower die body 2 by means of a bolt, the blower 11 can blow wind into the air inlet hole 10.

[0036] It should be noted that the present utility model is a 3D printing resin mold. After a cooling mechanism 5 is arranged around the cavity body 4 at the lower die body 2 of the 3D printing resin mold, there is an inner peripheral cooling groove 6 at the lower die body 2 outside the cavity body 4 to surround the cavity body 4, so that there is a cooling cavity that can accommodate liquid between the inner peripheral cooling groove 6 and the cavity body 4. Then, after the base of the blower 11 is locked to the lower die body 2 by means of a bolt, the blower 11 can blow wind into the air inlet hole 10. The liquid connecting pipes 8 extending from both sides of the lower die body 2 can be respectively connected to the liquid outlet pipe and the liquid inlet pipe of the mold temperature controller, so that the cooling liquid provided by the mold temperature controller can enter and exit the cooling cavity between the inner peripheral cooling groove 6 and the cavity body 4 at the liquid connecting pipes 8 for circulation. When the upper die body 3 is clamped above the lower die body 2 for mold closing, the electric push rod 15 can extend its telescopic rod to push the ejector rod 14 to tightly block the upper orifice of the top hole 12. Molten material is injected into the cavity of the cavity body 4 from the injection port of the upper die body 3. Then, the temperature at the cavity body 4 is taken away by the cooling liquid circulating in the cooling cavity. At the same time, the wind blown by the blower 11 from the air inlet hole 10 into the outer peripheral cooling groove 7 can take away the heat at the inner peripheral cooling groove 6. Then, the hot air is discharged from the air outlet 9 out of the lower die body 2, so that the heat conducted by the cavity body 4 at the inner peripheral cooling groove 6 is taken away by the wind, so that the liquid-cooled inner peripheral cooling groove 6 can provide a more efficient combined cooling method for the cavity body 4 to assist the material in the cavity body 4 to quickly cool and form. After forming, the upper die body 3 can be taken away from the surface of the lower die body 2. Then, the electric push rod 15 can push the ejector rod 14 to lift the formed product, which is convenient for the staff to take away the product. Then, the ejector rod 14 is re-blocked in the upper orifice of the top hole 12 as the telescopic rod of the electric push rod 15 retracts.

[0037] It should be noted that the present utility model is a 3D printing resin mold. The components in the present utility model are all components known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or by conventional experimental methods.

[0038] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A 3D printing resin mold, comprising a mold base (1), a lower mold body (2), an upper mold body (3) and a cavity body (4), wherein the lower mold body (2) is fixed on the top of the mold base (1), and the upper mold body (3) is clamped on the surface of the lower mold body (2), and the cavity body (4) is integrally formed in the lower mold body (2), characterized in that: The mold further comprises a cooling mechanism (5), wherein the cooling mechanism (5) comprises an inner surrounding cold groove (6), an outer cold groove (7), a liquid connecting pipe (8), an exhaust port (9), an air inlet hole (10) and a fan (11); an inner surrounding cold groove (6) is provided in the lower mold body (2) outside the mold cavity (4); the inner surrounding cold groove (6) surrounds the mold cavity (4) to form a cold cavity; an outer cold groove (7) is provided in the lower mold body (2) outside the inner surrounding cold groove (6); liquid connecting pipes (8) communicating with the cold cavity are symmetrically fixed outside the groove wall of the inner surrounding cold groove (6); the liquid connecting pipes (8) pass through the outer cold groove (7) and extend out of the lower mold body (2); exhaust ports (9) are provided on the inner wall of the outer cold groove (7) on both sides of the liquid connecting pipe (8); the exhaust ports (9) are An external air outlet is provided on the outer surface of the lower mold body (2); the other two outer surfaces of the lower mold body (2) away from the liquid connecting tube (8) are symmetrically provided with air inlet holes (10) which are interconnected with the peripheral cold groove (7); and a fan (11) which covers the air inlet holes (10) is bolted on the surface of the lower mold body (2); a top hole (12) is vertically provided in the middle of the cavity body (4); and a core tube (13) is inserted into the top hole (12); the core tube (13) passes downward through the bottom surface of the lower mold body (2); and a push rod (14) is provided in the core tube (13) and is embedded downward into the opening of the top hole (12); the push rod (14) is welded to the telescopic rod head of the electric push rod (15), and the electric push rod (15) is installed on the surface of the mold base (1) below the lower mold body (2).

2. A 3D printing resin mold according to claim 1, characterized in that: Bolts are screwed between the seat plate of the electric push rod (15) and the die base (1) below the lower die body (2).

3. A 3D printing resin mold according to claim 1, characterized in that: The surface of the mold cavity (4) in the inner surrounding cold groove (6) is concavely formed with an annular inner groove (16).

4. A 3D printing resin mold according to claim 1, characterized in that: The outer pipe opening of the liquid connecting pipe (8) extending out of the lower mold body (2) is provided with a threaded pipe body.

5. A 3D printing resin mold according to claim 1, characterized in that: The cavity diameter of the top hole (12) is the same as the body diameter of the core tube (13), and the upper opening diameter of the top hole (12) is the same as the body diameter of the top rod (14).

6. A 3D printing resin mold according to claim 1, characterized in that: Bolts are screwed between the base of the fan (11) and the lower mold body (2), and the air outlet of the fan (11) faces the air inlet (10).

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