Precise injection mold

Abstract

The utility model relates to a precise injection mold which comprises a mounting base, a fixed mold is arranged at one end of the mounting base, a guide rail is arranged at the other end of the mounting base towards the fixed mold, a movable mold is slidably connected to the guide rail, a guide groove parallel to the guide rail is formed in the upper end of the movable mold, a guide rod opposite to the guide groove is arranged on the fixed mold, and the guide rod is slidably connected to the guide groove; the fixed mold is provided with a fixed forming mold facing the movable mold, the movable mold is provided with a movable forming mold opposite to the fixed forming mold, the movable forming mold is provided with a forming rod opposite to the fixed forming mold, the forming rod penetrates through the fixed forming mold, the forming rod is provided with a vent hole and is provided with a sealing rod opposite to the vent hole, and the end, away from the fixed mold, of the vent hole is connected with a pressure control mechanism; driving mechanisms are arranged at the ends, away from the vent holes, of the sealing rods; and the sealing rod slides in the forming rod under the action of the driving mechanism, and the vent hole is blocked or circulated. The utility model aims to improve the injection molding precision and realize quick demolding of materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, especially a kind of precision injection mold. BACKGROUND

[0002] Injection mold is the material by injection molding machine high pressure injection into mold cavity after cooling solidification, get shaped product by heated melting. The most common injection raw materials include ABS, PC, nylon, PP, PE, POM and PS, etc., injection mold is a kind of commonly used tool in the production of plastic products, can give plastic product complete structure and accurate size, realize the batch production of plastic products. The high-precision injection mold of the prior art is relatively complex in structure, the maintenance cost of the equipment is higher, and the material after injection molding is difficult to quickly demold. SUMMARY

[0003] The utility model discloses a kind of precision injection mold, to improve injection precision, and realize material fast demolding.

[0004] To achieve the above object, a kind of precision injection mold is provided in the utility model, including installation base, one end of the installation base is equipped with fixed mould, the other end is equipped with guide rail towards fixed mould, slidingly connected with movable mould on the guide rail, the upper end of the movable mould is equipped with guide slot parallel to guide rail, the fixed mould is equipped with guide rod relative to guide slot, the guide rod is slidingly connected in guide slot;

[0005] The fixed mould is equipped with fixed forming die towards movable mould, the movable mould is equipped with movable forming die relative to fixed forming die, the movable forming die is equipped with forming rod relative to fixed forming die, the forming rod is arranged in fixed forming die, the forming rod is equipped with air hole, and sealing rod is equipped relative to air hole, one end of the air hole is connected with pressure control mechanism away from fixed mould, one end of the sealing rod is equipped with driving mechanism away from air hole.

[0006] The sealing rod slides in forming rod under the action of driving mechanism, and makes air hole block or flow.

[0007] In an embodiment of the present application, the forming rod is equipped with sliding slot relative to air hole, the sealing rod is slidingly connected in sliding slot, air groove is equipped between air hole and sliding slot, one end of the air groove is connected with air hole, and the other end is connected with sliding slot.

[0008] One side of the air groove is equipped with air inlet pipe, the other side is equipped with air outlet pipe, the air inlet pipe and air outlet pipe are wrapped in sliding slot.

[0009] In an embodiment of the present application, the outer periphery of the air groove is equipped with communication cavity, the communication cavity, air groove, sealing rod, sliding slot are coaxially arranged, the diameter of the communication cavity is greater than the diameter of the sliding slot.

[0010] The air inlet pipe is connected to one side of the connecting cavity, and the air outlet pipe is connected to the other side of the connecting cavity.

[0011] In one embodiment of this application, the forming rod is provided with a venting cavity relative to the venting hole, and a sealing cavity is provided between the venting hole and the venting cavity. The diameter of the sealing cavity gradually decreases along the direction close to the venting hole, and the sealing rod passes through the venting cavity.

[0012] The sealing rod, venting cavity, sealing cavity, and venting hole are coaxially arranged, and the diameter of the venting cavity is larger than the diameter of the sealing rod.

[0013] In one embodiment of this application, the moving mold, the forming rod, and the fixed mold are coaxially arranged. The side of the fixed mold away from the fixed mold is provided with an injection gun opposite to the fixed mold, and the outer wall of the fixed mold is provided with an inlet opposite to the injection gun.

[0014] In one embodiment of this application, the mounting base has a discharge port relative to the sealing rod, and the discharge port has a discharge groove on the side away from the moving mold. The discharge port is connected to the guide rail.

[0015] By adopting the above technical solution, this utility model has the following advantages:

[0016] 1. The fixed mold is installed on one side of the mounting base, and the other side facing the fixed mold is equipped with a guide rail. The guide rail can be used to install the moving mold. The moving mold can quickly and accurately dock with the fixed mold through the guide rail. The moving mold, fixed mold, and forming rod will be smoothly docked with the help of the mounting base and guide rail, and quickly sealed to form a complete forming mold. Through the above structure, the mold can be quickly and accurately formed and injection molded, which can effectively improve production efficiency.

[0017] 2. The moving mold has a guide groove parallel to the guide rail relative to the fixed mold, while the fixed mold has a guide rod relative to the guide groove. One end of the guide rod is fixed to the fixed mold, and the other end passes through the guide groove. The guide groove and the guide rod are relatively sliding structures. The guide groove and the guide rod can quickly and accurately limit the upper end of the mold, and the guide rail can quickly and accurately limit the lower end of the mold. Both have a guiding function, and their cooperation can effectively improve the accuracy of the mold, enabling high-precision injection molding. This effectively prevents mold misalignment from causing problems with the complete molding structure and effectively improves product quality.

[0018] 3. The end of the molding rod is equipped with a vent hole. After the material is injected, the vent hole can suck up the injected material. When the moving mold separates from the fixed mold along the guide rail, the molding rod can pull the product out of the fixed mold together. After the product has completely left the fixed mold, the air inlet and outlet pressure control mechanism connected to the vent hole can change the air direction and use air blowing to separate the product from the molding rod, which can effectively separate the product and improve the production separation efficiency. The sealing rod can move inside the molding rod with the help of the drive mechanism. When injection is required, the drive mechanism at the tail of the sealing rod can block the vent hole, so that the molding rod plays the role of product molding. When the product needs to be removed, the driving mechanism separates the molding rod from the vent hole, which can efficiently remove the product. Through the above structure, production costs can be effectively reduced and production efficiency can be significantly improved. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the precision injection mold of this utility model;

[0021] Figure 2 This is a cross-sectional view of the precision injection mold of this utility model from one perspective;

[0022] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 This is a cross-sectional view of the precision injection mold of this utility model from another perspective.

[0024] Explanation of icon numbers:

[0025] 1. Mounting base; 11. Discharge port; 2. Guide rail; 3. Fixed mold; 31. Fixed forming mold; 32. Guide rod; 4. Moving mold; 41. Moving forming mold; 5. Forming rod; 51. Vent hole; 52. Sliding groove; 53. Vent groove; 54. Air inlet pipe; 55. Air outlet pipe; 56. Connecting cavity; 6. Sealing rod.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] Reference Figures 1 to 4 To achieve the above objectives, this utility model proposes a precision injection mold, including a mounting base 1. One end of the mounting base 1 is provided with a fixed mold 3, and the other end is provided with a guide rail 2 facing the fixed mold 3. A movable mold 4 is slidably connected on the guide rail 2. The upper end of the movable mold 4 is provided with a guide groove parallel to the guide rail 2. The fixed mold 3 is provided with a guide rod 32 opposite to the guide groove, and the guide rod 32 is slidably connected to the guide groove.

[0029] A fixed mold 31 is provided in the fixed mold 3 facing the moving mold 4. A moving mold 41 is provided in the moving mold 4 relative to the fixed mold 31. A forming rod 5 is provided in the moving mold 41 relative to the fixed mold 31. The forming rod 5 passes through the fixed mold 31. A vent hole 51 is provided in the forming rod 5. A sealing rod 6 is provided in the vent hole 51. A pressure control mechanism is connected to the end of the vent hole 51 away from the fixed mold 3. A driving mechanism is provided at the end of the sealing rod 6 away from the vent hole 51.

[0030] The sealing rod 6 slides inside the forming rod 5 under the action of the driving mechanism, and blocks or allows the vent hole 51 to flow.

[0031] The fixed mold 3 is installed on one side of the mounting base 1, and the other side facing the fixed mold 3 is provided with a guide rail 2. The guide rail 2 can be used to install the moving mold 4. The moving mold 4 can quickly and accurately dock with the fixed mold 3 through the guide rail 2. The moving mold 41, the fixed mold 31, and the forming rod 5 will be smoothly docked with the help of the mounting base 1 and the guide rail 2, and quickly sealed to form a complete mold. Through the above structure, the mold can be quickly and accurately formed and injection molded, which can effectively improve production efficiency.

[0032] The moving mold 4 has a guide groove parallel to the guide rail 2 relative to the fixed mold 3, while the fixed mold 3 has a guide rod 32 relative to the guide groove. One end of the guide rod 32 is fixed to the fixed mold 3, and the other end passes through the guide groove. The guide groove and the guide rod 32 are relatively sliding structures. The guide groove and the guide rod 32 can quickly and accurately limit the upper end of the mold, and the guide rail 2 can quickly and accurately limit the lower end of the mold. Both have a guiding function, and their cooperation can effectively improve the accuracy of the mold, enabling the mold to perform high-precision injection molding, effectively preventing the mold alignment error from causing problems with the complete molding structure, and effectively improving product quality.

[0033] The end of the molding rod 5 is provided with a vent 51. After the material is injected, the vent 51 can suck up the injected material by suction. When the moving mold 4 separates from the fixed mold 3 along the guide rail 2, the molding rod 5 can pull the product out of the fixed mold 31 together. After the product has completely left the fixed mold 3, the air inlet and outlet pressure control mechanism connected to the vent 51 can change the air direction and use air blowing to separate the product from the molding rod 5, which can effectively separate the product and improve the production separation efficiency. The sealing rod 6 can move inside the molding rod 5 by means of the drive mechanism. When injection is required, the drive mechanism at the tail of the sealing rod 6 can make the sealing rod 6 block the vent 51, so that the molding rod 5 plays the role of product molding. When the product needs to be removed, the driving mechanism separates the molding rod 5 from the vent 51, which can efficiently remove the product. Through the above structure, production costs can be effectively reduced and production efficiency can be significantly improved.

[0034] See also Figures 2 to 4 The forming rod 5 has a sliding groove 52 relative to the vent 51, the sealing rod 6 is slidably connected to the sliding groove 52, and a vent groove 53 is provided between the vent 51 and the sliding groove 52. One end of the vent groove 53 is connected to the vent 51, and the other end is connected to the sliding groove 52.

[0035] An air inlet pipe 54 is provided on one side of the ventilation groove 53, and an air outlet pipe 55 is provided on the other side. The air inlet pipe 54 and the air outlet pipe 55 are wrapped around the sliding groove 52.

[0036] The sliding groove 52 can limit the sealing rod 6, so that the drive mechanism does not need to limit the sealing rod 6. As long as the sealing rod 6 moves back and forth, it can stably block or unblock the vent hole 51. The vent groove 53 is used to connect the air inlet pipe 54, the air outlet pipe 55, and the vent hole 51. When the sealing rod 6 is connected to the vent hole 51 and the molding rod 5 performs the molding effect, the sealing rod 6 will block the vent groove 53. When the injection molded product needs to be removed using the pressure control mechanism, the air inlet pipe 54, and the air outlet pipe 55, the sealing rod 6 will move away from the vent hole 51 and the vent groove 53, so that the vent groove 53, the air inlet pipe 54, the air outlet pipe 55, and the vent hole 51 are interconnected. The pressure control mechanism can quickly remove and unload the product through the above structure, which can improve the tightness of the connection between the various parts of the injection mold and ensure the stability of the machine operation.

[0037] See also Figures 2 to 3 A connecting cavity 56 is provided on the outer periphery of the venting groove 53. The connecting cavity 56, the venting groove 53, the sealing rod 6, and the sliding groove 52 are coaxially arranged. The diameter of the connecting cavity 56 is larger than the diameter of the sliding groove 52.

[0038] The intake pipe 54 is connected to one side of the connecting cavity 56, and the exhaust pipe 55 is connected to the other side of the connecting cavity 56.

[0039] By additionally opening a larger diameter connecting cavity 56 around the venting groove 53, the connecting cavity 56 can surround the venting groove 53 and the sealing rod 6. When the sealing rod 6 is connected to the venting hole 51, the air inlet pipe 54 and the air outlet pipe 55 remain connected through the connecting cavity 56. After injection molding is completed and the product is waiting to cool down, the pressure control mechanism allows air to enter through the air inlet pipe 54 and exit through the air outlet pipe 55, which can accelerate the stabilization of the product. The connecting cavity 56 can efficiently cool the product, allowing it to reach a stable state more quickly. The above structure can improve production efficiency.

[0040] See also Figure 3 The forming rod 5 has a ventilation cavity relative to the ventilation hole 51, and a sealing cavity is provided between the ventilation hole 51 and the ventilation cavity. The diameter of the sealing cavity gradually decreases along the direction close to the ventilation hole 51, and the sealing rod 6 passes through the ventilation cavity.

[0041] The sealing rod 6, the venting chamber, the sealing chamber, and the vent 51 are coaxially arranged, and the diameter of the venting chamber is larger than the diameter of the sealing rod 6.

[0042] The ventilation chamber has a large diameter. After connecting the ventilation hole 51 to the sealing chamber, the pressure control mechanism can determine whether to pump or suck air through a single hole, ensuring the stability of the pumping force and enabling more stable product removal. The drive mechanism is connected to one side of the moving mold 4, and the drive mechanism limits the sealing rod 6. Similarly, the sealing rod 6 can be precisely driven to block or clear the ventilation hole 51, achieving the purpose of quickly removing the product.

[0043] See also Figure 1 The moving forming mold 41, forming rod 5, and fixed forming mold 31 are coaxially arranged. The side of the fixed mold 3 away from the fixed forming mold 31 is provided with an injection gun opposite to the fixed forming mold 31, and the outer wall of the fixed mold 3 is provided with an inlet opposite to the injection gun.

[0044] The moving forming mold 41, forming rod 5, and fixed forming mold 31 are coaxially arranged to ensure uniform product quality. The cooling effect is also achieved with the help of air inlet pipe 54 and air outlet pipe 55. The injection gun is located in the fixed mold 3 and faces the fixed forming mold 31. The liquid inlet allows external equipment to easily supply materials, and the injection gun presses the material into the forming mold to ensure product quality.

[0045] See also Figures 1 to 4 The mounting base 1 has a discharge port 11 relative to the sealing rod 6. The discharge port 11 has a discharge groove on the side away from the moving mold 4. The discharge port 11 is connected to the guide rail 2.

[0046] The discharge port 11 is located on the mounting base 1, and the lower part of the discharge port 11 is connected to the discharge trough. The discharge trough can guide the product and quickly transfer the injection-molded product to the designated position, which can effectively improve production efficiency.

[0047] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0048] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A precision injection mold, comprising a mounting base, characterized in that, One end of the mounting base is provided with a fixed mold, and the other end is provided with a guide rail facing the fixed mold. A moving mold is slidably connected on the guide rail. A guide groove is opened at the upper end of the moving mold parallel to the guide rail. A guide rod is provided on the fixed mold opposite to the guide groove. The guide rod is slidably connected to the guide groove. The fixed mold has a fixed forming mold facing the moving mold, the moving mold has a moving forming mold opposite the fixed forming mold, the moving forming mold has a forming rod opposite the fixed forming mold, the forming rod passes through the fixed forming mold, the forming rod has a vent hole, and a sealing rod is provided opposite the vent hole. The end of the vent hole away from the fixed mold is connected to a pressure control mechanism, and the end of the sealing rod away from the vent hole is provided with a driving mechanism. The sealing rod slides inside the forming rod under the action of the driving mechanism, causing the vent hole to be blocked or allowed to flow.

2. The precision injection mold according to claim 1, characterized in that, The forming rod has a sliding groove relative to the vent hole, the sealing rod is slidably connected to the sliding groove, and a vent groove is provided between the vent hole and the sliding groove. One end of the vent groove is connected to the vent hole, and the other end is connected to the sliding groove. The ventilation groove has an air inlet pipe on one side and an air outlet pipe on the other side, and the air inlet pipe and the air outlet pipe are wrapped around the sliding groove.

3. A precision injection mold according to claim 2, characterized in that, A connecting cavity is provided on the outer periphery of the venting groove. The connecting cavity, venting groove, sealing rod, and sliding groove are coaxially arranged. The diameter of the connecting cavity is larger than the diameter of the sliding groove. The air inlet pipe is connected to one side of the connecting cavity, and the air outlet pipe is connected to the other side of the connecting cavity.

4. A precision injection mold according to claim 1, characterized in that, The forming rod has a ventilation cavity opposite the ventilation hole, and a sealing cavity is provided between the ventilation hole and the ventilation cavity. The diameter of the sealing cavity gradually decreases along the direction close to the ventilation hole, and the sealing rod passes through the ventilation cavity. The sealing rod, venting cavity, sealing cavity, and venting hole are coaxially arranged, and the diameter of the venting cavity is larger than the diameter of the sealing rod.

5. A precision injection mold according to claim 1, characterized in that, The moving mold, the forming rod, and the fixed mold are coaxially arranged. The side of the fixed mold away from the fixed mold is provided with an injection gun opposite to the fixed mold, and the outer wall of the fixed mold is provided with an inlet opposite to the injection gun.

6. A precision injection mold according to claim 1, characterized in that, The mounting base has a discharge port relative to the sealing rod, and the discharge port has a discharge groove on the side away from the moving mold. The discharge port is connected to the guide rail.

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