A high-efficiency injection mold based on multi-cavity synchronous injection molding

Abstract

This utility model discloses a high-efficiency injection mold based on multi-cavity synchronous injection molding, relating to the field of injection molds. It includes a support and stabilizing plate, with a docking stabilizing frame mounted on its upper surface. The docking stabilizing frame contains a meshing transmission mechanism for retracting a spring-driven rod, and the meshing transmission mechanism includes a linear motor. In this high-efficiency injection mold based on multi-cavity synchronous injection molding, when the first pair of molds docks with the second pair, a fixed-extension rack, through a rotating connecting gear and a traction sliding rack, pulls the rear reinforcing plate inward until the spring-driven rod abuts against the back of the second pair of molds and retracts accordingly within the hollow rod. This design improves the tightness of the mold docking, reduces wear between molds after prolonged processing, prevents material leakage at the docking point, and improves the production efficiency of the finished product.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a high-efficiency injection mold based on multi-cavity synchronous injection. Background Technology

[0002] A mold is a tool used to mold and shape materials by injecting them into the mold. There are various ways to make molds, including injecting liquid molding material into the mold, cooling it to shape it, and then using a demolding mechanism to eject the finished product from the mold. This process produces a wide variety of finished products depending on the shape of the mold.

[0003] Currently, most steps in the injection molding process require manual operation by workers, such as closing the mold, removing the mold top cover, removing the cooled and solidified molded part, and sending the molded part to the next processing unit using tools. Therefore, the current injection mold has a very low degree of automation and is almost entirely manual.

[0004] To overcome the aforementioned deficiencies, existing technology (Chinese patent publication number: CN112721049A, application date: 2021-04-30) discloses a high-efficiency injection mold, including a base plate, a rotating rod, a lower mold, a positioning rod, and an upper mold. An injection head is fixedly mounted in the center of the base plate, and limit rods are installed at the four corners of the base plate. The rotating rod is installed on the left and right sides of the injection head, and a sliding groove is formed on its outer surface. The lower mold is fixedly mounted on the upper end of a shock-absorbing spring. The positioning rod is fixedly mounted in the center of a positioning groove, and a push button is provided above the positioning rod. The upper mold is positioned above the positioning rod. This high-efficiency injection mold adopts a novel structural design, automatically positioning itself each time the mold closes, ensuring consistent product dimensions for each processing operation and reducing the impact of errors caused by prolonged use on product quality. Furthermore, during mold opening, the upward force of the mold drives the extrusion block upward, ejecting the completed product from the mold, saving operation time and improving production efficiency.

[0005] While the above design can solve the aforementioned problems, the insufficient tightness of the interlocking between molds leads to wear gaps between the molds after a long processing period. Raw materials will leak from the joints, resulting in reduced production efficiency. In addition, after the injection molding operation is completed, the existing design requires manual disassembly and cooling, which is inconvenient for employees and reduces processing efficiency, failing to achieve a rapid cooling effect on the finished product. Utility Model Content

[0006] The purpose of this invention is to provide a high-efficiency injection mold based on multi-cavity synchronous injection molding, in order to solve the problem mentioned in the background art that the insufficient tightness of the interlocking between molds causes wear gaps to form between molds after a long processing time, resulting in leakage of raw materials from the joints and a decrease in the production efficiency of finished products. At the same time, after the injection molding operation is completed, the existing design requires manual disassembly and cooling, which is inconvenient for employees to operate, reduces processing efficiency, and fails to achieve a rapid cooling effect on the finished products.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency injection mold based on multi-cavity synchronous injection molding, comprising a support stabilizing plate, a docking stabilizing frame installed on the upper surface of the support stabilizing plate, and an engagement transmission mechanism for retracting a spring push rod installed inside the docking stabilizing frame, the engagement transmission mechanism comprising a driving linear motor, and a first pair of engaging molds installed on the outer surface of the output end of the driving linear motor, the lower end of the first pair of engaging molds being slidably installed inside the docking stabilizing frame, and a second pair of engaging molds being installed inside the docking stabilizing frame, a lifting water tank installed on the outer surface of the support stabilizing plate, and an ejection sliding mechanism for abutting a self-resetting throttling rod installed on the outer surface of the lifting water tank.

[0008] Furthermore, the ejection sliding mechanism includes an L-shaped abutment plate, which is fixedly installed on the upper surface of the extended integral rod. A through-connecting water pipe is installed on the outer surface of the raised water tank, and the raised water tank and the through-connecting water pipe are internally connected.

[0009] Furthermore, a docking and connecting box is installed on the back of the second pair of connecting molds, and the interior of the docking and connecting box is internally connected to the lower opening of the connecting water pipe. A transverse limiting frame is installed inside the docking and connecting box, and the two sides of the self-resetting cut-off rod are slidably installed inside the transverse limiting frame.

[0010] Furthermore, the movement trajectories of the first pair of engagement molds and the second pair of engagement molds correspond to and fit into each other, and an extended integral rod is installed on the outer surface of the driving linear motor. A fixed extended rack is installed on the lower surface of the extended integral rod, and a rotating connecting gear is installed on the upper surface of the supporting stabilizing plate.

[0011] Furthermore, the fixed extension rack meshes with the rotating connecting gear, and a traction sliding rack is installed above the docking stabilizer. The rotating connecting gear meshes with the traction sliding rack, and a rear reinforcing plate is installed at the end of the traction sliding rack.

[0012] Furthermore, a hollow rod is installed on the inner surface of the rear reinforcing plate, and a spring push rod is slidably nested inside the hollow rod. The movement trajectory of the spring push rod abuts against the back of the second pair of engagement molds, and the extended integral rod and the fixed extended rack are designed as a single unit.

[0013] Furthermore, a circulating cooling box is installed on the back of the second pair of joining molds, and the top of the circulating cooling box and the opening of the docking through box are internally connected. The contact position of the self-resetting cut-off rod will cut off and block the internal connection between the through connecting water pipe and the docking through box. A raw material input port is installed at the center of the outer surface of the second pair of joining molds.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When the first pair of molds and the second pair of molds are docked, the fixed extension rack will pull the rear reinforcing plate inward through the rotating connecting gear and the traction sliding rack until the spring push rod touches the back of the second pair of molds and performs corresponding contraction work inside the hollow rod. This design improves the tightness of the docking between the molds, reduces the wear between the molds after a long processing time, and prevents the raw material from leaking from the docking point, thus improving the production efficiency of the finished product.

[0015] Furthermore, when the first pair of joining molds docks with the second pair of joining molds, the L-shaped contact plate will abut against the self-resetting cut-off rod and push it outward, causing the front end of the self-resetting cut-off rod to disengage from the outlet of the through-connecting water pipe. The water source will then flow into the interior of the circulating cooling box through the docking box, achieving the cooling operation of the finished product inside the second pair of joining molds. This design makes it easier for employees to operate, improves processing efficiency, and allows the finished product to achieve a rapid cooling effect.

[0016] Furthermore, the upper stabilizing frame fixedly installed on both sides of the first pair of joining molds makes the docking of the second pair of joining molds with the rear reinforcing plate more stable. In addition, the docking of the first pair of joining molds and the second pair of joining molds has a multi-cavity design, which enables the equipment to carry out efficient simultaneous production. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the support and stabilizing plate of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the linear motor that drives this utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the extended integrated rod of this utility model;

[0020] Figure 4This is a three-dimensional structural diagram of the second pair of joining molds of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the docking and connecting box of this utility model;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the raised water tank of this utility model.

[0023] In the diagram: 1. Supporting stabilizing plate; 2. Pushing linear motor; 3. First pair of joining molds; 4. Upper stabilizing frame; 5. Second pair of joining molds; 6. Extended integrated rod; 7. Fitting hollow rod; 8. Fixed extended rack; 9. Rotating connecting gear; 10. Traction sliding rack; 11. Rear reinforcing plate; 12. Raised water tank; 13. Through connecting water pipe; 14. Docking stabilizing frame; 15. Raw material input port; 16. Circulating cooling box; 17. Docking through box; 18. L-shaped contact plate; 19. Lateral limiting frame; 20. Spring push rod; 21. Self-resetting cut-off rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution: a high-efficiency injection mold based on multi-cavity synchronous injection molding, including a support and stabilizing plate 1, a docking stabilizing frame 14 is installed on the upper surface of the support and stabilizing plate 1, and a meshing transmission mechanism for retracting a spring push rod 20 is installed inside the docking stabilizing frame 14. The meshing transmission mechanism includes a driving linear motor 2, and a first pair of engaging molds 3 is installed on the outer surface of the output end of the driving linear motor 2. The lower end of the first pair of engaging molds 3 is slidably installed inside the docking stabilizing frame 14, and a second pair of engaging molds 5 is installed inside the docking stabilizing frame 14. A lifting water tank 12 is installed on the outer surface of the support and stabilizing plate 1, and an ejection sliding mechanism for abutting a self-resetting throttling rod 21 is installed on the outer surface of the lifting water tank 12.

[0026] like Figure 2 , Figure 3 , Figure 4The technical solution shown addresses the problem of insufficient tightness between molds, leading to wear gaps and material leakage after prolonged processing, thus reducing production efficiency. It discloses that the movement trajectories of the first pair of engaging molds 3 and the second pair of engaging molds 5 are correspondingly fitted together. An extended integrated rod 6 is mounted on the outer surface of the linear motor 2, a fixed extended rack 8 is mounted on the lower surface of the extended integrated rod 6, and a rotating connecting gear 9 is mounted on the upper surface of the supporting and stabilizing plate 1. The extended rack 8 meshes with the rotating connecting gear 9, and a traction sliding rack 10 is installed above the docking stabilizer 14. The rotating connecting gear 9 meshes with the traction sliding rack 10, and a rear reinforcing plate 11 is installed at the end of the traction sliding rack 10. A hollow fitting rod 7 is installed on the inner surface of the rear reinforcing plate 11, and a spring push rod 20 is slidably nested inside the hollow fitting rod 7. The movement trajectory of the spring push rod 20 abuts against the back of the second pair of engagement molds 5, and the extended integral rod 6 and the fixed extended rack 8 are designed as a single unit.

[0027] When a more stable sealing and bonding operation is required between the first pair of mating molds 3 and the second pair of mating molds 5, the linear motor 2, which is fixedly installed on the upper surface of the support stabilizing plate 1, is first started to push forward. This causes the first pair of mating molds 3 to slide laterally along the inside of the docking stabilizing frame 14 fixedly installed on the upper surface of the support stabilizing plate 1. As the first pair of mating molds 3 slides to its limit position, it will complete the internal fitting and docking operation with the second pair of mating molds 5 fixedly installed at the corresponding position on the support stabilizing plate 1. As the output end of the linear motor 2 extends, the extended integral rod 6 and the fixed extended rack 8, which are fixedly installed on the outer surface, will move synchronously. The movement of the fixed extended rack 8 will contact the rotating connecting gear 9, which is rotatably installed on the upper part of the support stabilizing plate 1, and drive it to rotate. As the rotating connecting gear 9 rotates, the area below the rotating connecting gear 9... The traction sliding rack 10 in contact with it will be driven synchronously and slide along the upper limit of the docking stabilizer 14. The movement of the traction sliding rack 10 will drive the rear reinforcing plate 11 fixed at the end synchronously. The movement of the rear reinforcing plate 11 will slide along the upper end stabilizer 4 fixedly installed on the left and right sides of the first pair of joint molds 3 until the end of the spring push rod 20 contacts the back of the second pair of joint molds 5. Since the spring push rod 20 is slidably installed inside the fitting hollow rod 7 and the fitting hollow rod 7 is fixedly installed on the inner surface of the rear reinforcing plate 11, when the front end of the spring push rod 20 comes into contact with the back of the second pair of joint molds 5, it will be squeezed and contracted along the inside of the fitting hollow rod 7. During this process, the spring push rod 20 will push the first pair of joint molds 3 and the second pair of joint molds 5 inward to achieve a tighter connection effect.

[0028] Example 2: Figure 1 , Figure 5 , Figure 6 The technical solution shown addresses the problem that existing designs require manual removal and cooling after product injection molding, which is inconvenient for employees, reduces processing efficiency, and fails to achieve rapid cooling of the finished product. The solution discloses: an ejection sliding mechanism includes an L-shaped contact plate 18, which is fixedly mounted on the upper surface of the extended integral rod 6; a through-connecting water pipe 13 is installed on the outer surface of the raised water tank 12, and the raised water tank 12 and the through-connecting water pipe 13 are internally connected; a docking through-box 17 is installed on the back of the second pair of molds 5, and the docking through-box 17... The lower opening of the internal connecting water pipe 13 is designed to be internally connected. A transverse limiting frame 19 is installed inside the connecting box 17, and the two sides of the self-resetting throttling rod 21 are slidably installed inside the transverse limiting frame 19. A circulating cooling box 16 is installed on the back of the second pair of joining molds 5, and the top of the circulating cooling box 16 is designed to be internally connected to the opening of the connecting box 17. The contact position of the self-resetting throttling rod 21 will block the flow at the internal connection between the connecting water pipe 13 and the connecting box 17. A raw material input port 15 is installed at the center of the outer surface of the second pair of joining molds 5.

[0029] When the finished products inside the first pair of joining molds 3 and the second pair of joining molds 5 need to be cooled down, as the first pair of joining molds 3 are driven to dock, the extended integrated rod 6 will synchronously drive the L-shaped abutment plate 18 fixed on the upper surface. The movement of the L-shaped abutment plate 18 will push the self-resetting throttling rod 21 with its front end abutting each other outward. At this time, the end of the self-resetting throttling rod 21 will gradually move laterally inside the docking through box 17, and the movement process will be limited and slid along the lateral limit frame 19 fixed on the two sides inside the docking through box 17, making the sliding process more stable. After the self-resetting throttling rod 21 is pushed outward, the front end of the self-resetting throttling rod 21 will disengage from the opening of the through connecting water pipe 13. The raised water tank 12, which is fixedly installed on the top of the 3 and the upper surface of the support and stabilizing plate 1, has an internal connection design. Therefore, when the opening of the through-connecting water pipe 13 is no longer blocked, the water inside the raised water tank 12 will enter the interior of the docking through box 17 and be transported again along the lower opening of the docking through box 17. The water will then enter the circulating cooling box 16, which is also internally connected to the lower end of the docking through box 17. Since the circulating cooling box 16 is tightly fitted to the back of the second pair of joining molds 5, the finished product inside the second pair of joining molds 5 will receive an internal cooling effect, improving production efficiency. In addition, the raw material input port 15 designed in the center of the second pair of joining molds 5 can efficiently inject multiple cavities into the interior of the first pair of joining molds 3 and the second pair of joining molds 5.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency injection mold based on multi-cavity synchronous injection molding, comprising a support stabilizing plate (1), wherein a docking stabilizing frame (14) is installed on the upper surface of the support stabilizing plate (1), and a meshing transmission mechanism for retracting a spring push rod (20) is installed inside the docking stabilizing frame (14); characterized in that The meshing transmission mechanism includes a driving linear motor (2), and a first pair of engagement molds (3) are installed on the outer surface of the output end of the driving linear motor (2). The lower end of the first pair of engagement molds (3) is slidably installed inside the docking stabilizer (14), and a second pair of engagement molds (5) are installed inside the docking stabilizer (14). A raised water tank (12) is installed on the outer surface of the supporting stabilizer plate (1), and an ejection sliding mechanism that abuts against the self-resetting cutoff rod (21) is installed on the outer surface of the raised water tank (12).

2. The high-efficiency injection mold based on multi-cavity synchronous injection molding according to claim 1, characterized in that: The ejection sliding mechanism includes an L-shaped abutment plate (18), and the L-shaped abutment plate (18) is fixedly installed on the upper surface of the extended integral rod (6). The outer surface of the raised water tank (12) is equipped with a through-connecting water pipe (13), and the raised water tank (12) and the through-connecting water pipe (13) are internally connected.

3. The high-efficiency injection mold based on multi-cavity synchronous injection molding according to claim 2, characterized in that: The second pair of connecting molds (5) is equipped with a docking through box (17) on the back side, and the interior of the docking through box (17) is internally connected to the lower opening of the through connecting water pipe (13). The interior of the docking through box (17) is equipped with a transverse limiting frame (19), and the two sides of the self-resetting cut-off rod (21) are slidably installed inside the transverse limiting frame (19).

4. The high-efficiency injection mold based on multi-cavity synchronous injection molding according to claim 1, characterized in that: The movement trajectories of the first pair of engagement molds (3) and the second pair of engagement molds (5) correspond to each other and are fitted together. An extension rod (6) is installed on the outer surface of the linear motor (2). A fixed extension rack (8) is installed on the lower surface of the extension rod (6), and a rotating connecting gear (9) is installed on the upper surface of the support stabilizing plate (1).

5. A high-efficiency injection mold based on multi-cavity synchronous injection molding according to claim 4, characterized in that: The fixed extension rack (8) meshes with the rotating connecting gear (9), and a traction sliding rack (10) is installed above the docking stabilizer (14). The rotating connecting gear (9) meshes with the traction sliding rack (10), and a rear reinforcing plate (11) is installed at the end of the traction sliding rack (10).

6. A high-efficiency injection mold based on multi-cavity synchronous injection molding according to claim 5, characterized in that: The inner surface of the rear reinforcing plate (11) is fitted with a hollow rod (7), and the spring push rod (20) is slidably nested inside the hollow rod (7). The movement trajectory of the spring push rod (20) abuts against the back of the second pair of engagement molds (5), and the extended integral rod (6) and the fixed extended rack (8) are integrated into one piece.

7. A high-efficiency injection mold based on multi-cavity synchronous injection molding according to claim 3, characterized in that: The second pair of molds (5) is equipped with a circulating cooling box (16) on the back side, and the top of the circulating cooling box (16) and the opening of the docking through box (17) are internally connected. The self-resetting cut-off rod (21) will cut off the internal connection between the water pipe (13) and the docking through box (17) at the fitting position. The raw material input port (15) is installed at the center of the outer surface of the second pair of molds (5).

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