Exhaust structure of injection mold of sealing ring product

Abstract

The utility model belongs to the technical field of injection molds, in particular relates to an exhaust structure of an injection mold of a sealing ring product, and aims to solve the problems that the injection mold of the sealing ring product is only provided with an exhaust groove on the outer ring of the product, so that uneven glue feeding is easy to cause, the product has burrs or is missed, the edge dismounting performance is easy to cause poorer, and the processing efficiency is influenced. According to the scheme, the die comprises an upper die body and a lower die body which are used in a matched mode, a plurality of rectangular sealing ring die cavities are arranged in the upper die body and the lower die body in a rectangular array mode, the rotary installation assembly is arranged on the upper die body and the lower die body and connected with the upper die body and the lower die body in an overturning mode so that opening and closing can be achieved, and the positioning assembly is arranged on the upper die body and the lower die body and used for preventing the upper die body and the lower die body from being staggered. When in use, the rubber feeding is more uniform, the processing performance is better, the forming quality of a product is improved, the burrs and the missing rate of the product are reduced, the edge removing performance is improved, and the production of the sealing ring product is more efficient and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold exhaust structure for a sealing ring product. Background Art

[0002] The injection mold of the sealing ring product is a special mold used to produce various sealing rings. The sealing ring is usually used to prevent fluid or gas leakage and ensure the sealing performance of the system. The injection mold is a mold that uses a plastic injection molding machine to inject plastic melt into the mold cavity and solidify it under pressure to produce a plastic product of a certain shape and size.

[0003] At present, the injection mold of sealing ring products is only designed with exhaust grooves on the outer ring of the product, which can easily cause uneven glue flow, resulting in burrs or missing edges on the product, and easily lead to poor edge removal performance, affecting processing efficiency.

[0004] In view of the above problems, the utility model document proposes an injection mold exhaust structure for a sealing ring product. Utility Model Content

[0005] The utility model provides an injection mold exhaust structure for a sealing ring product, which solves the problem that the injection mold for the sealing ring product in the prior art is only designed with an exhaust groove on the outer ring of the product, which easily causes uneven glue flow, resulting in burrs or missing edges on the product, and easily leads to poor edge removal performance, affecting processing efficiency.

[0006] The utility model provides the following technical solutions:

[0007] The injection mold exhaust structure of the sealing ring product includes:

[0008] An upper die and a lower die are used together, wherein a plurality of rectangular sealing ring cavities are arranged in a rectangular array in the upper die and the lower die;

[0009] The rotating installation assembly is arranged on the upper die and the lower die, and is turned over to connect the upper die and the lower die so as to open and close;

[0010] A positioning assembly is provided on the upper die and the lower die to prevent the upper die and the lower die from being misaligned;

[0011] The internal and external exhaust structure is set on the lower mold to ensure uniform glue flow, reduce product burrs and missing rates, and improve edge removal performance.

[0012] In a possible design, the rotating mounting assembly includes two first mounting rings symmetrically fixed on one side of the outer wall of the upper mold, and a second mounting ring symmetrically fixed on one side of the outer wall of the lower mold is aligned with the corresponding first mounting ring, and the first mounting ring and the second mounting ring are rotatably connected via corresponding through rods.

[0013] In a possible design, the positioning assembly includes positioning pins fixedly arranged at the four corners of the top of the lower mold, and the bottom of the upper mold is provided with positioning holes for plugging corresponding positioning pins.

[0014] In a possible design, the positioning pin is conical in shape so that the upper mold can be turned over so that the positioning pin can smoothly enter the corresponding positioning hole.

[0015] In one possible design, the internal and external exhaust structure includes an outer ring exhaust groove connected to multiple rectangular sealing ring cavities in the lower mold, and two inner ring exhaust grooves are symmetrically arranged in the rectangular sealing ring of the lower mold, so that the formed diaphragm has thickened double rods to facilitate quick edge removal.

[0016] In a possible design, the outer walls of the upper mold and the lower mold are fixedly provided with handles for convenient opening and closing of the mold.

[0017] In a possible design, two plug blocks for plugging and fixing the mold on the operating table of the pressurizing equipment are symmetrically fixed on the bottom of the lower mold.

[0018] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0019] The utility model has the following beneficial effects:

[0020] The utility model makes the opening and closing and positioning operations of the mold more convenient and quick through the design of the rotating installation component and the positioning component, thereby improving the production efficiency. The design of the internal and external exhaust structures can ensure uniform glue flow, reduce the product burrs and missing rates, and improve the edge removal performance.

[0021] The utility model can make the glue flow more uniform, improve the processing performance, improve the molding quality of the product, reduce the burr and missing rate of the product, and improve the edge removal performance, so that the production of the sealing ring product is more efficient and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional schematic diagram of the exhaust structure of the injection mold of the sealing ring product provided by the embodiment of the utility model;

[0023] Figure 2 A schematic structural diagram of another perspective of the exhaust structure of the injection mold of the sealing ring product provided by the embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the expansion of the venting structure of the injection mold of the sealing ring product provided by the embodiment of the utility model;

[0025] Figure 4This is a schematic diagram of the lower mold structure of the injection mold exhaust structure of the sealing ring product provided in an embodiment of the utility model.

[0026] Figure numerals: 1, upper mold; 2, lower mold; 3, positioning hole; 4, positioning pin; 5, first mounting ring; 6, second mounting ring; 7, through rod; 8, outer ring exhaust groove; 9, inner ring exhaust groove; 10, handle; 11, plug block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0030] Embodiment 1

[0031] Please refer to Figure 1-4 , the injection mold exhaust structure of the sealing ring product is mainly composed of an upper mold 1 and a lower mold 2, which is described in detail below:

[0032] The injection mold exhaust structure includes an upper mold 1 and a lower mold 2 used in conjunction with each other. A plurality of rectangular sealing ring cavities are arranged inside the upper mold 1 and the lower mold 2. The cavities are arranged in a rectangular array and are used to produce a plurality of sealing ring products at the same time. When in use, four groups of silicone sheets are placed correspondingly on the plurality of rectangular sealing ring cavities of the lower mold 2, and then the upper mold 1 is covered and pressed by a pressurizing device to cause the silicone sheets to fill the rectangular sealing ring cavities, forming a whole sheet of sealing ring sheets without removing the edges.

[0033] The rotating mounting assembly is designed to flip and connect the upper mold 1 and the lower mold 2 to realize the opening and closing operation of the mold. Specifically, two first mounting rings 5 ​​are symmetrically fixedly arranged on one side of the outer wall of the upper mold 1, and two second mounting rings 6 aligned with the first mounting rings 5 ​​are also symmetrically fixedly arranged on one side of the outer wall of the lower mold 2. The first mounting rings 5 ​​and the second mounting rings 6 are rotatably connected by corresponding through rods 7, so that the upper mold 1 and the lower mold 2 can rotate relative to each other.

[0034] In order to ensure that the upper mold 1 and the lower mold 2 can be accurately aligned when closed and prevent misalignment, a positioning component is designed. The positioning component includes positioning pins 4 fixedly arranged at the four corners of the top of the lower mold 2, and positioning holes 3 corresponding to the positioning pins 4 are provided at the bottom of the upper mold 1. When the upper mold 1 is turned over and the lower mold 2 is closed, the positioning pins 4 can be smoothly inserted into the corresponding positioning holes 3 to achieve accurate positioning of the mold. In addition, in order to facilitate the smooth insertion of the positioning pins 4, the positioning pins 4 are designed to be conical;

[0035] In order to ensure uniform glue flow, reduce product burrs and missing rates, and improve edge removal performance, an internal and external exhaust structure is designed. The exhaust structure mainly includes an outer ring exhaust groove 8 connected to multiple rectangular sealing ring cavities in the lower mold 2 and two inner ring exhaust grooves 9 symmetrically arranged in the rectangular sealing ring of the lower mold 2. The outer ring exhaust groove 8 and the inner ring exhaust groove 9 together constitute an exhaust channel, which ensures uniform glue flow during the molding process. In addition, the setting of the inner ring exhaust groove 9 also allows the formed diaphragm to have thickened double rods, which is convenient for subsequent edge removal operations.

[0036] Embodiment 2

[0037] Improvements based on Example 1:

[0038] Please refer to Figure 1-3 In order to facilitate the operator to open and close the mold, in this embodiment, a handle 10 is fixedly provided on the outer wall of the upper mold 1 and the lower mold 2;

[0039] In order to ensure the stability of the mold during the injection molding process, two plug blocks 11 are symmetrically fixedly arranged at the bottom of the lower mold 2. These plug blocks 11 are used to plug and fix the mold on the operating table of the pressurizing equipment.

[0040] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. The injection mold exhaust structure of the sealing ring product is characterized by: include: An upper mold (1) and a lower mold (2) are used in combination, wherein a plurality of rectangular sealing ring mold cavities are arranged in a rectangular array in the upper mold (1) and the lower mold (2); The rotating installation assembly is arranged on the upper mold (1) and the lower mold (2) and is used to flip and connect the upper mold (1) and the lower mold (2) so as to facilitate opening and closing; A positioning assembly is provided on the upper die (1) and the lower die (2) and is used to prevent the upper die (1) and the lower die (2) from being misaligned; The internal and external exhaust structures are arranged on the lower mold (2) to ensure uniform glue flow, reduce product burrs and missing rates, and improve edge removal performance.

2. The injection mold exhaust structure of the sealing ring product according to claim 1, characterized in that: The rotating installation assembly comprises two first installation rings (5) symmetrically fixedly arranged on one side of the outer wall of the upper mold (1); a second installation ring (6) aligned with the corresponding first installation ring (5) is symmetrically fixedly arranged on one side of the outer wall of the lower mold (2); the first installation ring (5) and the second installation ring (6) are rotatably connected via a corresponding through rod (7).

3. The injection mold exhaust structure of the sealing ring product according to claim 1, characterized in that: The positioning assembly comprises positioning pins (4) fixedly arranged at the four corners of the top of the lower mold (2), and the bottom of the upper mold (1) is provided with positioning holes (3) for plugging corresponding positioning pins (4).

4. The injection mold exhaust structure of the sealing ring product according to claim 3, characterized in that: The positioning pin (4) is conical in shape so that the positioning pin (4) can smoothly enter the corresponding positioning hole (3) by turning over the upper mold (1).

5. The injection mold exhaust structure of the sealing ring product according to claim 1, characterized in that: The internal and external exhaust structure comprises an outer ring exhaust groove (8) connected to a plurality of rectangular sealing ring cavities in the lower mold (2), and two inner ring exhaust grooves (9) are symmetrically arranged in the rectangular sealing ring of the lower mold (2), so that the formed diaphragm has thickened double rods for quick edge removal.

6. The injection mold exhaust structure of the sealing ring product according to claim 1, characterized in that: The outer walls of the upper mold (1) and the lower mold (2) are both fixedly provided with handles (10) for convenient opening and closing of the molds.

7. The injection mold exhaust structure of the sealing ring product according to claim 1, characterized in that: The bottom of the lower mold (2) is symmetrically fixed with two inserting blocks (11) for inserting and fixing the mold on the operating table of the pressurizing equipment.

Images