Precise plastic mold with exhaust structure

Abstract

The utility model discloses a precise plastic mould with an exhaust structure, which relates to the field of moulds and comprises an upper mould, a lower mould and a U-shaped base, a shaking mechanism is arranged in the U-shaped base, the lower mould is mounted on the U-shaped base through the shaking mechanism, the upper mould is mounted on the upper side of the lower mould, and an injection molding pipe is fixedly arranged in the middle of the upper end of the upper mould. Two exhaust pipes which are symmetrically distributed left and right are fixedly arranged at the upper end of the upper die, two water tanks which are symmetrically distributed are fixedly arranged at the upper end of the upper die, the exhaust ends of the two exhaust pipes are bent downwards and fixedly penetrate through the upper side walls of the two water tanks correspondingly to extend to the lower portions of the interiors of the water tanks, and exhaust ports are formed in the middles of the upper sides of the two water tanks correspondingly; and drainage pipes are fixedly arranged at the lower ends of the two opposite sides of the two water tanks. According to the plastic mold exhaust device, the exhaust effect of a plastic mold can be achieved, meanwhile, harmful substances in gas can be absorbed, the gas can be cooled, the exhausted gas is prevented from hurting a human body, and the plastic mold exhaust device is convenient for people to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, in particular to a precision plastic mold with an exhaust structure. Background Art

[0002] Mould (mújù) refers to various moulds and tools used in industrial production to obtain the required products by methods such as injection moulding, blow moulding, extrusion, die casting or forging, smelting and stamping. In short, the mould is a tool used to make moulded objects. This tool is composed of various parts, and different moulds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the moulding material. It is known as the "mother of industry".

[0003] At present, when plastic molds are produced, an exhaust structure is generally left on the upper mold so that the gas in the plastic mold can be discharged smoothly during injection molding. In the prior art, the exhaust structure on the plastic mold is generally to directly set an exhaust pipe on the upper mold. Although such a setting can discharge the gas, the exhausted gas contains harmful substances and has a high temperature, which can easily cause harm to people. Therefore, a precision plastic mold with an exhaust structure is proposed. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a precision plastic mold with an exhaust structure, which effectively solves the problem that during the production of the current plastic mold, an exhaust structure is generally left on the upper mold, so that the gas in the plastic mold can be discharged smoothly during injection molding. In the prior art, the exhaust structure on the plastic mold is generally to directly set an exhaust pipe on the upper mold. Although such a setting can discharge the gas, the exhausted gas contains harmful substances and has a high temperature, which can easily cause harm to people.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precision plastic mold with an exhaust structure, comprising an upper mold, a lower mold and a U-shaped base, the interior of the U-shaped base is provided with a shaking mechanism, the lower mold is mounted on the U-shaped base through the shaking mechanism, the upper mold is mounted on the upper side of the lower mold, an injection tube is fixedly arranged in the middle of the upper end of the upper mold, two exhaust pipes symmetrically distributed on the left and right are also fixedly arranged on the upper end of the upper mold, two symmetrically distributed water tanks are also fixedly arranged on the upper end of the upper mold, the exhaust ends of the two exhaust pipes are bent downward and are respectively fixedly passed through the upper side walls of the two water tanks and extend to the lower part of the interior of the water tanks, exhaust ports are opened in the middle of the upper sides of the two water tanks, and drain pipes are fixedly arranged at the lower ends of the opposite sides of the two water tanks, and control valves are arranged on the two drain pipes.

[0006] Preferably, two circular plates are fixedly provided on one side of the interior of each exhaust pipe close to the air inlet end, a circular hole is opened in the middle of the surface of each circular plate, a closing ball is slidably provided in the exhaust pipe, the closing ball is located between the two circular plates, and the ball diameter of the closing ball is larger than the diameter of the circular hole.

[0007] Preferably, the shaking mechanism comprises a guide assembly and a reciprocating shaking assembly, wherein the guide assembly is arranged on the left and right inner side walls of the U-shaped base, the lower mold is slidably arranged in the U-shaped base through the guide assembly, and the reciprocating shaking assembly is arranged at the lower part of the U-shaped base and can drive the lower mold to move back and forth laterally;

[0008] The reciprocating shaking assembly includes a servo motor, a reciprocating screw and a screw nut, the screw nut is fixedly arranged in the middle of the lower end of the lower mold, the reciprocating screw is laterally arranged on the lower side of the lower mold and is movably sleeved with the screw nut, the left and right ends of the reciprocating screw are rotatably connected to the left and right sides of the U-shaped base through bearings, and the right end of the reciprocating screw extends to the outside of the U-shaped base, the servo motor is fixedly arranged on the right side of the U-shaped base, and the output end of the servo motor is fixedly connected to the right end of the reciprocating screw through a coupling, and the lower end of the screw nut is abutted against and slidably arranged against the lower inner wall of the U-shaped base.

[0009] Preferably, the guide assembly comprises two groups of telescopic rods, the fixed ends of the two groups of telescopic rods are respectively fixedly connected to the left and right inner walls of the U-shaped base, and the opposite ends of the two groups of telescopic rods are respectively fixedly connected to the left and right sides of the lower mold.

[0010] Preferably, each group of telescopic rods is provided with two, and the two telescopic rods in each group are symmetrically distributed front to back.

[0011] Preferably, two transversely arranged guide rails are fixedly provided on the lower inner wall of the U-shaped base, and two transversely arranged guide grooves are provided on the lower side wall of the lead screw nut, and the lead screw nut is slidably connected to the two guide rails via the two guide grooves.

[0012] Technical effects and advantages of the utility model:

[0013] 1. When the utility model is in use, during injection molding, the gas in the injection cavity of the upper mold and the lower mold will be discharged into the two water tanks through the two exhaust pipes. The gas passes through the solution in the water tank, which can not only absorb the harmful substances in the gas, but also cool the gas. Then the gas is discharged from the exhaust port on the upper side of the water tank. Through the above device, not only the exhaust effect of the plastic mold can be achieved, but also the harmful substances in the gas can be absorbed and the gas can be cooled, so as to avoid the exhaust gas from causing harm to the human body, and it is convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the top view of the lower mold and the U-shaped base of the utility model;

[0017] Figure 3 It is a schematic diagram of the side cross-sectional structure of the lower mold and the U-shaped base of the utility model;

[0018] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged structure of part A.

[0019] In the figure: 1. upper mold; 2. lower mold; 3. U-shaped base; 4. injection molding tube; 5. exhaust pipe; 6. water tank; 7. drain pipe; 8. round plate; 9. closing ball; 10. servo motor; 11. reciprocating screw; 12. screw nut; 13. telescopic rod; 14. guide rail. DETAILED DESCRIPTION

[0020] The utility model provides Figure 1-4 A precision plastic mold with an exhaust structure is shown, comprising an upper mold 1, a lower mold 2 and a U-shaped base 3, wherein a shaking mechanism is arranged inside the U-shaped base 3, and the lower mold 2 is mounted on the U-shaped base 3 through the shaking mechanism, and the upper mold 1 is mounted on the upper side of the lower mold 2, and an injection tube 4 is fixedly arranged in the middle of the upper end of the upper mold 1, and two exhaust pipes 5 symmetrically distributed on the left and right are also fixedly arranged on the upper end of the upper mold 1, and two symmetrically distributed water tanks 6 are also fixedly arranged on the upper end of the upper mold 1, and the exhaust ends of the two exhaust pipes 5 are bent downward and fixedly passed through the upper side walls of the two water tanks 6 and extend to the lower part of the inside of the water tanks 6, and exhaust ports are opened in the middle of the upper sides of the two water tanks 6, and drain pipes 7 are fixedly arranged at the lower ends of the opposite sides of the two water tanks 6, and control valves are arranged on the two drain pipes 7, and the upper mold 1 and the lower mold 2 are fixed to each other by a fixed structure, which is not drawn in the figure.

[0021] like Figure 1 and Figure 4As shown, two circular plates 8 are fixedly arranged on one side of the interior of each exhaust pipe 5 near the air inlet end, and a circular hole is opened in the middle of the surface of each circular plate 8. A closing ball 9 is slidably arranged in the exhaust pipe 5, and the closing ball 9 is located between the two circular plates 8. The ball diameter of the closing ball 9 is larger than the diameter of the circular hole. When exhausting, the gas can push the closing ball 9 upward to complete the exhaust. When the exhaust is completed, the closing ball 9 automatically falls down to close the circular hole on the lower circular plate 8 to avoid the phenomenon of water back-sucking due to the drop in temperature inside the plastic mold.

[0022] like Figure 1-Figure 3 As shown, the shaking mechanism includes a guide assembly and a reciprocating shaking assembly, the guide assembly is arranged on the left and right inner side walls of the U-shaped base 3, the lower mold 2 is slidably arranged in the U-shaped base 3 through the guide assembly, and the reciprocating shaking assembly is arranged at the lower part of the U-shaped base 3 and can drive the lower mold 2 to move back and forth laterally;

[0023] The reciprocating shaking assembly includes a servo motor 10, a reciprocating screw 11 and a screw nut 12. The screw nut 12 is fixedly arranged at the middle part of the lower end of the lower mold 2. The reciprocating screw 11 is transversely arranged at the lower side of the lower mold 2 and is movably sleeved with the screw nut 12. The left and right ends of the reciprocating screw 11 are rotatably connected to the left and right sides of the U-shaped base 3 through bearings, and the right end of the reciprocating screw 11 extends to the outside of the U-shaped base 3. The servo motor 10 is fixedly arranged on the right side of the U-shaped base 3, and the output end of the servo motor 10 is fixedly connected to the right end of the reciprocating screw 11 through a coupling. The lower end of the screw nut 12 is abutted against and slidably arranged on the lower inner wall of the U-shaped base 3;

[0024] The servo motor 10 can drive the reciprocating screw 11 to rotate, and the rotation of the reciprocating screw 11 drives the screw nut 12 to move back and forth horizontally, thereby driving the upper mold 1 and the lower mold 2 to shake back and forth left and right, which can quickly discharge the gas in the injection cavity and avoid the generation of bubbles.

[0025] like Figure 1-Figure 3 As shown, the guide assembly includes two sets of telescopic rods 13, the fixed ends of the two sets of telescopic rods 13 are respectively fixedly connected to the left and right inner side walls of the U-shaped base 3, and the opposite ends of the two sets of telescopic rods 13 are respectively fixedly connected to the left and right sides of the lower mold 2, which can guide the left and right shaking of the plastic mold to prevent the plastic mold from tipping over.

[0026] At the same time, each group of telescopic rods 13 is provided with two, and each group of two telescopic rods 13 is symmetrically distributed front and back, further improving the guiding stability.

[0027] like Figure 1-Figure 3As shown, two transversely arranged guide rails 14 are fixedly provided on the lower inner wall of the U-shaped base 3, and two transversely arranged guide grooves are provided on the lower side wall of the screw nut 12. The screw nut 12 is slidably connected with the two guide rails 14 through the two guide grooves, which can guide the transverse movement of the screw nut 12 and support the screw nut 12 to improve the movement stability.

[0028] Working principle of the utility model: when the utility model is in use, during injection molding, the gas in the injection cavity of the upper mold 1 and the lower mold 2 will be discharged into the two water tanks 6 through the two exhaust pipes 5. The gas passes through the solution in the water tank 6, which can not only absorb harmful substances in the gas, but also cool the gas. Then the gas is discharged from the exhaust port on the upper side of the water tank 6. Through the upper device, not only the exhaust effect of the plastic mold can be achieved, but also the harmful substances in the gas can be absorbed and the gas can be cooled, so as to avoid the exhausted gas from causing harm to the human body, and it is convenient for people to use.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision plastic mold with an exhaust structure, characterized in that: The invention comprises an upper mold (1), a lower mold (2) and a U-shaped base (3), wherein a shaking mechanism is arranged inside the U-shaped base (3), the lower mold (2) is mounted on the U-shaped base (3) via the shaking mechanism, the upper mold (1) is mounted on the upper side of the lower mold (2), an injection molding tube (4) is fixedly arranged at the middle of the upper end of the upper mold (1), two exhaust pipes (5) symmetrically distributed on the left and right are also fixedly arranged at the upper end of the upper mold (1), and two symmetrically distributed water tanks (6) are also fixedly arranged at the upper end of the upper mold (1), the exhaust ends of the two exhaust pipes (5) are bent downward and are respectively fixedly passed through the upper side walls of the two water tanks (6) and extend to the lower part of the water tanks (6), the middle parts of the upper sides of the two water tanks (6) are provided with exhaust ports, and drainage pipes (7) are fixedly arranged at the lower ends of the opposite sides of the two water tanks (6), and control valves are arranged on the two drainage pipes (7).

2. A precision plastic mold with an exhaust structure according to claim 1, characterized in that: Two circular plates (8) are fixedly arranged on one side of the interior of each exhaust pipe (5) close to the air inlet end, and a circular hole is opened in the middle of the surface of each circular plate (8). A closing ball (9) is slidably arranged in the exhaust pipe (5), and the closing ball (9) is located between the two circular plates (8), and the ball diameter of the closing ball (9) is larger than the diameter of the circular hole.

3. The precision plastic mold with exhaust structure according to claim 2, characterized in that: The rocking mechanism comprises a guide assembly and a reciprocating rocking assembly, wherein the guide assembly is arranged on the left and right inner side walls of the U-shaped base (3), the lower mold (2) is slidably arranged in the U-shaped base (3) through the guide assembly, and the reciprocating rocking assembly is arranged at the lower part of the U-shaped base (3) and can drive the lower mold (2) to move reciprocatingly in the lateral direction; The reciprocating shaking assembly comprises a servo motor (10), a reciprocating screw (11) and a screw nut (12); the screw nut (12) is fixedly arranged at the middle part of the lower end of the lower mold (2); the reciprocating screw (11) is transversely arranged at the lower side of the lower mold (2) and is movably sleeved with the screw nut (12); the left and right ends of the reciprocating screw (11) are rotatably connected to the left and right sides of the U-shaped base (3) respectively through bearings, and the right end of the reciprocating screw (11) extends to the outside of the U-shaped base (3); the servo motor (10) is fixedly arranged on the right side of the U-shaped base (3), and the output end of the servo motor (10) is fixedly connected to the right end of the reciprocating screw (11) through a coupling; the lower end of the screw nut (12) is abutted against and slidably arranged on the lower inner wall of the U-shaped base (3).

4. The precision plastic mold with exhaust structure according to claim 3, characterized in that: The guide assembly comprises two groups of telescopic rods (13), the fixed ends of the two groups of telescopic rods (13) are respectively fixedly connected to the left and right inner side walls of the U-shaped base (3), and the opposite ends of the two groups of telescopic rods (13) are respectively fixedly connected to the left and right sides of the lower mold (2).

5. The precision plastic mold with exhaust structure according to claim 4, characterized in that: Each group of telescopic rods (13) is provided with two, and each group of two telescopic rods (13) are symmetrically distributed front and back.

6. The precision plastic mold with exhaust structure according to claim 5, characterized in that: Two transversely arranged guide rails (14) are fixedly arranged on the lower inner side wall of the U-shaped base (3), and two transversely arranged guide grooves are opened on the lower side wall of the screw nut (12). The screw nut (12) is slidably connected to the two guide rails (14) via the two guide grooves.

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