A dual gate injection mold

Abstract

The utility model discloses a kind of double-gate injection mould, belong to injection mould technical field, including first mounting plate and the second mounting plate being set to first mounting plate one side, first mould body is equipped in second mounting plate close to first mounting plate one side, second mould body is equipped in first mounting plate close to second mounting plate one side, and mould cavity is opened in second mould body close to first mould body one side, ejection assembly is equipped in mould cavity, mounting rack is equipped in first mounting plate away from second mounting plate one side, mounting port is opened in second mounting plate middle position, two gate bushings being symmetrically distributed are embedded in first mould body inside.The utility model is equipped with two gate bushings, and it is convenient for equipment double-gate injection material, with high pouring quality, and the advantages, such as high forming efficiency, and by the setting of two control valves, control valve has the effect of controlling material entering flow, and then it is convenient for adjusting the effect of product thickness position feed amount, beneficial to improve the processing effect of equipment.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and more specifically, to a dual-gate injection mold. Background Technology

[0002] Injection molding is a method of shaping industrial products. Products are usually made using rubber injection molding and plastic injection molding. Injection molds are key tools used for plastic processing and molding. Molten plastic is injected into the mold cavity under high pressure, and after cooling, plastic products of specific shapes and sizes are obtained. It is widely used in automobiles, electronics, daily necessities and other fields.

[0003] Some existing injection molds use a single gate for feeding. This single-gate design can lead to an excessively long flow path for the molten plastic within the mold cavity, especially in complex mold structures. This can result in increased flow resistance and a drop in melt temperature, affecting the filling effect. Therefore, we propose a dual-gate injection mold. Utility Model Content

[0004] To solve the above problems, this utility model provides a dual-gate injection mold, which adopts the following technical solution: A dual-gate injection mold includes a first mounting plate and a second mounting plate disposed on one side of the first mounting plate. A first mold body is disposed on the side of the second mounting plate near the first mounting plate, and a second mold body is disposed on the side of the first mounting plate near the second mounting plate. A mold cavity is opened on the side of the second mold body near the first mold body, and an ejector assembly is disposed in the mold cavity. A mounting bracket is disposed on the side of the first mounting plate away from the second mounting plate. An installation port is opened in the middle of the second mounting plate. Two symmetrically distributed sprue sleeves are embedded inside the first mold body. Each of the two sprue sleeves is provided with a feed pipe at the end away from the first mounting plate. A control valve is disposed in the middle of the two feed pipes. A T-joint is disposed between the ends of the two feed pipes away from the first mold body. A positioning assembly is disposed between the first mold body and the second mold body, and a fixing assembly is disposed between the first mold body and the second mold body.

[0005] By adopting the above technical solution, when the equipment is in use, the components are installed in conjunction with the structure in the prior art. The mounting bracket installed on one side of the first mounting plate is connected to the drive mechanism in the prior art, and one end of the tee connector is connected to the injection mechanism in the prior art. The drive mechanism in the prior art drives the first mounting plate and the second mold body to move towards the second mounting plate, so that the second mold body and the first mold body fit together. A positioning component is provided between the first mold body and the second mold body, which can play a positioning role, which helps to maintain the accuracy of the connection between the first mold body and the second mold body. In addition, a fixing component is provided between the first mold body and the second mold body. The fixing component not only plays a positioning role, but also plays a locking role for the first mold body and the second mold body, which helps to maintain the connection between the first mold body and the second mold body. The stability of the two mold bodies is ensured by the following: After the first and second mold bodies are bonded together, raw material is injected into the three-way connector through the existing injection mechanism. The raw material is then diverted to two feed pipes through the three-way connector and enters the mold cavity through two sprue sleeves, thus achieving the function of material injection. The two sprue sleeves provide advantages such as high injection quality and high molding efficiency. Furthermore, the two control valves control the flow rate of the material, facilitating the adjustment of the feed amount at the thickness position of the product, which helps improve the processing effect of the equipment. After the product is processed, the first and second mold bodies are disengaged, and the product is then ejected from the mold cavity through the ejection assembly, thus achieving the function of demolding and facilitating subsequent material removal by the staff.

[0006] Furthermore, the ejection assembly includes an ejection plate that is slidably installed in the mold cavity. A cylinder is provided on the side of the first mounting plate away from the second mounting plate. The piston shaft of the cylinder slides through the first mounting plate and extends into the mold cavity. The end of the piston shaft of the cylinder is fixedly connected to the side opposite to the ejection plate. A receiving groove matching the ejection plate is opened on the inner wall of the mold cavity. A sealing gasket is installed on the side wall of the ejection plate.

[0007] By adopting the above technical solution, after the product is processed, the first mold body and the second mold body are disengaged. The ejector plate is driven by the cylinder to move to the outside of the mold cavity. The ejector plate pushes the product out of the mold cavity, which can play the role of demolding and make it easier for the staff to pick up the material.

[0008] Furthermore, the positioning assembly includes four positioning rods fixedly installed on the side of the first mold body away from the second mounting plate, and the second mold body has a positioning groove on the side closer to the first mold body that matches the positioning rods.

[0009] By adopting the above technical solution, when the second mold body moves towards the first mold body, the positioning rod installed on the side wall of the first mold body engages with the positioning groove opened on the side wall of the second mold body, which can play a positioning role and help maintain the accuracy of the fit between the first mold body and the second mold body.

[0010] Furthermore, the fixing components include insert rods fixedly installed on both sides of the first mold body, frames that match the insert rods on the same side fixedly installed on both sides of the second mold body, support plates fixedly installed on both sides of the second mold body, the support plates being located above the frames on the same side, telescopic rods being provided at the bottom of the two support plates, fixing blocks being provided at the ends of the two telescopic rods, inlet and outlet openings that match the fixing blocks on the same side openings at the top of the two frames, and fixing grooves that match the fixing blocks on the same side openings at the top of the two insert rods.

[0011] By adopting the above technical solution, when the second mold body moves towards the first mold body, the frames set on both sides of the second mold body are fitted onto the side wall of the same-side insert rod. The cooperation between the insert rod and the frame can play a positioning role. Then, the telescopic rod drives the same-side fixing block to enter the frame through the inlet and outlet, so that the fixing block engages with the fixing groove opened on the side wall of the same-side insert rod. The engagement between the fixing block and the fixing groove plays a role in positioning and fixing the insert rod, which helps to maintain the stability of the docking of the first mold body and the second mold body. It also helps to prevent the first mold body and the second mold body from being pushed apart by the extrusion force when the material enters the interior of the first mold body and the second mold body, which is conducive to improving the processing quality of the product.

[0012] Furthermore, two symmetrically distributed stabilizing rods are fixedly installed on the side of the second mounting plate away from the first mounting plate. The ends of the two stabilizing rods away from the second mounting plate slide through the first mounting plate. Stabilizing blocks are slidably installed on the sidewalls of the two stabilizing rods. The bottom ends of the two stabilizing blocks are provided with grooves that match the stabilizing rods on the same side. The two stabilizing blocks are fixedly connected to the top of the second mold body.

[0013] By adopting the above technical solution, when the first mounting plate moves the second mold body towards the second mounting plate, the second mold body slides along the side wall of the stabilizing rod with the stabilizing block. Through the cooperation of the stabilizing block and the stabilizing rod, the second mold body is supported and balanced, which helps to maintain the stability of the second mold body when it moves.

[0014] Furthermore, two symmetrically distributed limiting blocks are fixedly installed at the bottom of each of the two stabilizing blocks, and a limiting groove matching the limiting blocks is opened at the top of the second mold body.

[0015] By adopting the above technical solution, the two stabilizing blocks and the second mold body are fixed together by fasteners of existing technology. When installing the stabilizing blocks, the workers place the stabilizing blocks on top of the second mold body so that the limiting blocks installed at the bottom of the stabilizing blocks engage with the limiting slots opened at the top of the second mold body, which plays a positioning role and facilitates subsequent fixing.

[0016] In summary, this utility model has the following beneficial technical effects: (1) In this utility model, the setting of two gate sleeves facilitates the double gate injection of the equipment, which has the advantages of high injection quality and high molding efficiency. Furthermore, the setting of two control valves allows the control valves to control the flow rate of the material entering the equipment, thereby facilitating the adjustment of the feed amount at the thickness position of the product, which is beneficial to improving the processing effect of the equipment.

[0017] (2) In this utility model, a positioning component is provided between the first mold body and the second mold body, which can play a positioning role and help maintain the accuracy of the docking of the first mold body and the second mold body. A fixing component is provided between the first mold body and the second mother body, which plays a positioning role through the cooperation of the insert rod and the sleeve frame. Then, the fixing block engages with the fixing groove opened on the side wall of the insert rod to play a positioning and fixing role of the insert rod, thereby playing a locking role. This helps maintain the stability of the fit between the first mold body and the second mold body and helps maintain the processing quality of the product. Attached Figure Description

[0018] Figure 1 This is a first-view structural diagram of the dual-gate injection mold of this utility model; Figure 2 This utility model relates to a double-gate injection mold. Figure 1 Enlarged view of A in the middle; Figure 3 This is a second-view structural diagram of the dual-gate injection mold of this utility model; Figure 4 This is an unfolded view of the stabilizing block and the second mold body in the dual-gate injection mold of this utility model; Figure 5 This utility model relates to a double-gate injection mold. Figure 4 A magnified view of B in the middle.

[0019] Explanation of the labels in the diagram: 1. First mounting plate; 2. Second mounting plate; 3. First mold body; 4. Second mold body; 5. Stabilizing block; 6. Stabilizing rod; 7. Positioning rod; 8. Insert rod; 9. Sprue sleeve; 10. Mounting frame; 11. Cylinder; 12. Support plate; 13. Telescopic rod; 14. Fixing block; 15. Frame; 16. Inlet / outlet; 17. Mold cavity; 18. Ejector plate; 19. Feed pipe; 20. Control valve; 21. T-connector; 22. Limiting block; 23. Groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0024] Please see Figure 1-5 A dual-gate injection mold includes a first mounting plate 1 and a second mounting plate 2 disposed on one side of the first mounting plate 1. A first mold body 3 is disposed on the side of the second mounting plate 2 near the first mounting plate 1, and a second mold body 4 is disposed on the side of the first mounting plate 1 near the second mounting plate 2. A mold cavity 17 is opened on the side of the second mold body 4 near the first mold body 3. A mounting bracket 10 is disposed on the side of the first mounting plate 1 away from the second mounting plate 2. An installation port is opened in the middle of the second mounting plate 2. Two symmetrically distributed sprue sleeves 9 are embedded inside the first mold body 3. A feed pipe 19 is provided at the end of each of the two sprue sleeves away from the first mounting plate 1. A control valve 20 is provided in the middle of each of the two feed pipes 19. A three-way connector 21 is provided between the ends of the two feed pipes 19 away from the first mold body 3.

[0025] When the equipment is in use, the components are installed in conjunction with the existing structure. The mounting bracket 10 installed on one side of the first mounting plate 1 is connected to the existing drive mechanism, and one end of the three-way connector 21 is connected to the existing injection mechanism. The existing drive mechanism drives the first mounting plate 1 and the second mold 4 to move towards the second mounting plate 2, so that the second mold 4 and the first mold 3 fit together. After the first mold 3 and the second mold 4 are fitted together, the existing injection mechanism injects raw material into the three-way connector 21. The raw material is diverted to the two feed pipes 19 through the three-way connector 21. The raw material enters the mold cavity 17 through the two sprue sleeves 9, which can play the role of injection. The setting of the two sprue sleeves 9 has the advantages of high casting quality and high molding efficiency. In addition, the setting of the two control valves 20 has the function of controlling the flow rate of material entering, which facilitates the adjustment of the feed amount at the thickness position of the product, which is conducive to improving the processing effect of the equipment.

[0026] A positioning assembly is provided between the first mold body 3 and the second mold body 4. The positioning assembly includes four positioning rods 7 fixedly installed on the side of the first mold body 3 away from the second mounting plate 2. The second mold body 4 has a positioning groove on the side close to the first mold body 3 that matches the positioning rods 7. When the second mold body 4 moves towards the first mold body 3, the positioning rods 7 installed on the side wall of the first mold body 3 engage with the positioning groove on the side wall of the second mold body 4, which can play a positioning role and help maintain the accuracy of the fit between the first mold body 3 and the second mold body 4.

[0027] A fixing assembly is provided between the first mold body 3 and the second mold body 4. The fixing assembly includes insert rods 8 fixedly installed on both sides of the first mold body 3. Frames 15 matching the insert rods 8 on the same side are fixedly installed on both sides of the second mold body 4. Support plates 12 are fixedly installed on both sides of the second mold body 4, located above the frames 15 on the same side. Telescopic rods 13 are provided at the bottom of both support plates 12, and fixing blocks 14 are provided at the ends of both telescopic rods 13. Inlet and outlet ports 16 matching the fixing blocks 14 on the same side are opened at the top of both frames 15. Fixing grooves matching the fixing blocks 14 on the same side are opened at the top of both insert rods 8. When the second mold body 4 moves towards the first mold body 3... The frames 15 on both sides of the second mold body 4 are fitted onto the side wall of the same-side insertion rod 8. The cooperation between the insertion rod 8 and the frame 15 can play a positioning role. Then, the telescopic rod 13 drives the same-side fixing block 14 to enter the frame 15 through the inlet and outlet 16, so that the fixing block 14 engages with the fixing groove opened in the side wall of the same-side insertion rod 8. The engagement between the fixing block 14 and the fixing groove plays a role in positioning and fixing the insertion rod 8, which helps to maintain the stability of the docking of the first mold body 3 and the second mold body 4. It also helps to prevent the first mold body 3 and the second mold body 4 from being pushed apart by the extrusion force when the material enters the first mold body 3 and the second mold body 4, which is conducive to improving the processing quality of the product.

[0028] The mold cavity 17 is equipped with an ejection assembly, which includes an ejection plate 18 slidably installed in the mold cavity 17. A cylinder 11 is provided on the side of the first mounting plate 1 away from the second mounting plate 2. The piston shaft of the cylinder 11 slides through the first mounting plate 1 and extends into the mold cavity 17. The end of the piston shaft of the cylinder 11 is fixedly connected to the side opposite to the ejection plate 18. A receiving groove matching the ejection plate 18 is opened on the inner wall of the mold cavity 17. A sealing gasket is installed on the side wall of the ejection plate 18. After the product is processed, the first mold body 3 and the second mold body 4 are disengaged. The ejection plate 18 is driven by the cylinder 11 to move to the outside of the mold cavity 17. The ejection plate 18 pushes the product out of the mold cavity 17, which can play the role of demolding and facilitate the workers to pick up the material.

[0029] Two symmetrically distributed stabilizing rods 6 are fixedly installed on the side of the second mounting plate 2 away from the first mounting plate 1. The ends of the two stabilizing rods 6 away from the second mounting plate 2 slide through the first mounting plate 1. Stabilizing blocks 5 are slidably installed on the side walls of the two stabilizing rods 6. The bottom ends of the two stabilizing blocks 5 are provided with grooves 23 that match the stabilizing rods 6 on the same side. The two stabilizing blocks 5 are fixedly connected to the top of the second mold body 4. When the first mounting plate 1 moves the second mold body 4 towards the second mounting plate 2, the second mold body 4 slides along the side wall of the stabilizing rod 6 with the stabilizing blocks 5. Through the cooperation of the stabilizing blocks 5 and the stabilizing rods 6, the second mold body 4 is supported and balanced, which helps to maintain the stability of the second mold body 4 when it moves.

[0030] Two symmetrically distributed limiting blocks 22 are fixedly installed at the bottom of each of the two stabilizing blocks 5. The top of the second mold body 4 is provided with a limiting groove that matches the limiting blocks 22. The two stabilizing blocks 5 and the second mold body 4 are fixed together by fasteners of existing technology. When installing the stabilizing blocks 5, the workers place the stabilizing blocks 5 on top of the second mold body 4 so that the limiting blocks 22 installed at the bottom of the stabilizing blocks 5 engage with the limiting grooves opened at the top of the second mold body 4, which plays a positioning role and facilitates subsequent fixing.

[0031] The implementation principle of this utility model embodiment is as follows: When the equipment is in use, the components in the equipment are connected and installed with the structure in the prior art. The mounting bracket 10 installed on one side of the first mounting plate 1 is connected with the drive mechanism in the prior art, and one end of the three-way connector 21 is connected with the injection mechanism in the prior art. The drive mechanism in the prior art drives the first mounting plate 1 and the second mold 4 to move towards the second mounting plate 2, so that the second mold 4 and the first mold 3 fit together. A positioning component is provided between the first mold 3 and the second mold 4, which can play a positioning role, which helps to maintain the accuracy of the connection between the first mold 3 and the second mold 4. In addition, a fixing component is provided between the first mold 3 and the second mold 4. The fixing component not only plays a positioning role, but also plays a locking role for the first mold 3 and the second mold 4, which helps to maintain the accuracy of the connection between the first mold 3 and the second mold 4. The stability of the second mold body 4 is ensured by the following: after the first mold body 3 and the second mold body 4 are bonded together, raw material is injected into the three-way connector 21 through the existing injection mechanism. The raw material is then diverted to the two feed pipes 19 through the three-way connector 21 and enters the mold cavity 17 through the two sprue sleeves 9, thus achieving the function of material injection. The setting of the two sprue sleeves 9 has the advantages of high injection quality and high molding efficiency. Furthermore, the setting of the two control valves 20 controls the flow rate of the material entering the mold, thereby facilitating the adjustment of the feed amount at the thickness position of the product and improving the processing effect of the equipment. After the product is processed, the first mold body 3 and the second mold body 4 are disengaged, and then the product is ejected from the mold cavity 17 through the ejection assembly, thus achieving the function of demolding and facilitating subsequent material removal by the staff.

[0032] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A double-gate injection mold, characterized in that: The system includes a first mounting plate (1) and a second mounting plate (2) disposed on one side of the first mounting plate (1). The second mounting plate (2) has a first mold body (3) on the side near the first mounting plate (1), and a second mold body (4) on the side near the second mounting plate (2). The second mold body (4) has a mold cavity (17) on the side near the first mold body (3). An ejector assembly is disposed within the mold cavity (17). A mounting bracket (10) is disposed on the side of the first mounting plate (1) away from the second mounting plate (2). The second mounting plate (2)... An installation port is provided in the middle of the first mold body (3). Two symmetrically distributed sprue sleeves (9) are embedded inside the first mold body (3). Each of the two sprue sleeves (9) is provided with a feed pipe (19) at the end away from the first mounting plate (1). A control valve (20) is provided in the middle of each of the two feed pipes (19). A three-way connector (21) is provided between the ends of the two feed pipes (19) away from the first mold body (3). A positioning component is provided between the first mold body (3) and the second mold body (4). A fixing component is provided between the first mold body (3) and the second mold body (4).

2. The dual-gate injection mold according to claim 1, characterized in that: The ejection assembly includes an ejection plate (18) that is slidably installed in the mold cavity (17). A cylinder (11) is provided on the side of the first mounting plate (1) away from the second mounting plate (2). The piston shaft of the cylinder (11) slides through the first mounting plate (1) and extends into the mold cavity (17). The end of the piston shaft of the cylinder (11) is fixedly connected to the side opposite to the ejection plate (18). The inner wall of the mold cavity (17) is provided with a receiving groove that matches the ejection plate (18). A sealing gasket is installed on the side wall of the ejection plate (18).

3. The dual-gate injection mold according to claim 1, characterized in that: The positioning assembly includes four positioning rods (7) fixedly installed on the side of the first mold (3) away from the second mounting plate (2), and the second mold (4) has a positioning groove matching the positioning rods (7) on the side closer to the first mold (3).

4. A dual-gate injection mold according to claim 1, characterized in that: The fixing components include insert rods (8) fixedly installed on both sides of the first mold body (3), and frames (15) that match the insert rods (8) on the same side are fixedly installed on both sides of the second mold body (4). Support plates (12) are fixedly installed on both sides of the second mold body (4). The support plates (12) are located above the frames (15) on the same side. The bottom ends of the two support plates (12) are provided with telescopic rods (13). The ends of the two telescopic rods (13) are provided with fixing blocks (14). The top ends of the two frames (15) are provided with inlets and outlets (16) that match the fixing blocks (14) on the same side. The top ends of the two insert rods (8) are provided with fixing grooves that match the fixing blocks (14) on the same side.

5. A dual-gate injection mold according to claim 1, characterized in that: Two symmetrically distributed stabilizing rods (6) are fixedly installed on the side of the second mounting plate (2) away from the first mounting plate (1). The two stabilizing rods (6) slide through the first mounting plate (1) at the end away from the second mounting plate (2). Stabilizing blocks (5) are slidably installed on the side walls of the two stabilizing rods (6). The bottom end of the two stabilizing blocks (5) is provided with a groove (23) that matches the stabilizing rod (6) on the same side. The two stabilizing blocks (5) are fixedly connected to the top of the second mold body (4).

6. A dual-gate injection mold according to claim 5, characterized in that: Two symmetrically distributed limiting blocks (22) are fixedly installed at the bottom of each of the two stabilizing blocks (5), and the top of the second mold body (4) is provided with a limiting groove that matches the limiting blocks (22).

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