Turnover clamp for molding equipment

Abstract

The utility model discloses an overturning clamp for molding equipment, and belongs to the technical field of molding equipment. A turnover clamp for molding equipment comprises a base, a first mold and a second mold are arranged on the base, the two molds form a molding cavity, a rotating shaft is rotationally connected to the base, a clamping plate is arranged at the end of the rotating shaft and abuts against the outer wall of the first mold, an air hole is formed in the first mold, and an air supply part is arranged on the base. The air supply part is communicated with the air hole, and when the first mold is turned over, the air supply part conveys air into the air hole; on one hand, the first mold can face downwards in the demolding process, residual extrusion force of a molded part is reduced through gravity, the molded part can be separated from the mold more smoothly, on the other hand, a layer of air cushion can be formed between the molded part and the first mold, the mold is prevented from being damaged in the demolding process, and the finished product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of molding equipment technology, and in particular to a flipping fixture for molding equipment. Background Technology

[0002] Molding is a process in which a plastic material (such as plastic) is heated to make it flow, then injected into a mold, and solidified after cooling. The molding process usually includes the following steps: feeding, heating, injection, cooling and demolding. Molding technology has a wide range of applications, from everyday plastic products to high-precision electronic components and automotive parts.

[0003] In the production process of molding equipment, demolding after molding is a crucial step that directly affects the quality of the final product, production efficiency, and production costs.

[0004] However, in many cases, traditional molding equipment does not fully consider the ease of demolding. Complex mold shapes may cause the workpiece to stick tightly to the inner wall of the mold after cooling, making demolding difficult and potentially damaging the demolding mold, thus affecting the quality of the finished product. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that the material adheres tightly to the inner wall of the mold after cooling, making demolding difficult and potentially damaging the demolding mold, thus affecting the quality of the finished product. The invention proposes a flipping fixture for molding equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flipping fixture for molding equipment includes a base, on which a first mold and a second mold are disposed, the two sets of molds forming a molding cavity. A rotating shaft is rotatably connected to the base, wherein a clamping plate is disposed at the end of the rotating shaft, the clamping plate abutting against the outer wall of the first mold, and an air hole is provided on the first mold. An air supply part is disposed on the base, the air supply part communicating with the air hole. When the first mold is flipped, the air supply part supplies gas toward the air hole.

[0008] To facilitate the delivery of gas into the vent, preferably, the gas supply unit includes a gas supply cylinder, a connecting rod slidably connected to the gas supply cylinder, a piston extending into the gas supply cylinder and fitting against the inner wall of the gas supply cylinder, the bottom of the piston being connected to the inner wall of the gas supply cylinder via a return spring, an inlet pipe and an outlet pipe provided on the gas supply cylinder, a one-way valve provided on the inlet pipe and the outlet pipe, and the outlet pipe communicating with the vent.

[0009] To facilitate pressing the connecting rod, a mounting plate is fixedly connected to the base, a support plate is fixedly connected to the mounting plate, an air supply cylinder is fixedly connected to the support plate and is located on one side of the rotating shaft, a motor is fixedly connected to the mounting plate, the rotating shaft is fixedly connected to the output end of the motor, and a pressing plate is fixedly connected to the rotating shaft, the pressing plate cooperating with the connecting rod.

[0010] To further improve the stability of the connecting rod during the lifting process, a mounting base is fixedly connected to the top of the connecting rod, and a receiving groove is provided on the mounting base, with a roller connected to the receiving groove.

[0011] To facilitate stable clamping of the mold, preferably, two sets of clamping plates are symmetrically arranged, and the two sets of clamping plates abut against the two sides of the first mold.

[0012] To facilitate sealing of the air holes on the mold, preferably, the bottom of the second mold is provided with a sealing protrusion, which corresponds to the air hole. When the second mold and the first mold are closed, the air hole is blocked by the sealing protrusion.

[0013] Compared with the prior art, the present invention provides a flipping fixture for molding equipment, which has the following beneficial effects:

[0014] 1. The molding equipment uses a flipping fixture, which can drive the first mold to flip through the rotating shaft, so that the first mold faces downward during the demolding process. This flipping action not only helps to achieve rapid demolding, but also uses gravity to reduce the residual extrusion pressure of the molded parts, so that the molded parts can be released from the mold more smoothly and avoid damage to the mold or product due to adhesion.

[0015] 2. The molding equipment uses a flipping fixture to deliver compressed gas into the air hole. After the gas enters the air hole, it forms an air cushion between the molded part and the first mold. The generation of this air cushion can not only effectively expand and separate the contact surface between the cooled molded part and the mold, but also reduce the friction between the two and prevent the mold from being damaged during demolding. In addition, this design ensures the integrity and surface quality of the molded part and improves the appearance and performance of the finished product.

[0016] The parts not covered in this device are the same as or can be implemented using existing technology. On the one hand, this utility model can make the first mold face downwards during the demolding process, using gravity to reduce the residual extrusion pressure on the molded part, so that the molded part can be released from the mold more smoothly. On the other hand, it can also form an air cushion between the molded part and the first mold, preventing the mold from being damaged during the demolding process and improving the quality of the finished product. Attached Figure Description

[0017] Figure 1This is a first-view structural schematic diagram of a flipping fixture for molding equipment proposed in this utility model;

[0018] Figure 2 This is a second-view structural schematic diagram of a flipping fixture for molding equipment proposed in this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of a flipping fixture for molding equipment proposed in this utility model;

[0020] Figure 4 This is a partial structural diagram of a flipping fixture for molding equipment proposed in this utility model.

[0021] In the diagram: 1. Base; 2. Mounting plate; 3. Motor; 4. Rotating shaft; 5. Pressing plate; 6. Clamping plate; 7. First mold; 8. Second mold; 9. Air hole; 10. Air outlet pipe; 11. Support plate; 12. Air supply cylinder; 13. Connecting rod; 14. Mounting seat; 15. Roller. Detailed Implementation

[0022] 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.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., 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 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. Therefore, they should not be construed as limitations on this utility model.

[0024] Example:

[0025] Reference Figure 1 - Figure 4 A flipping fixture for molding equipment includes a base 1, on which a first mold 7 and a second mold 8 are disposed. The second mold 8 is driven by a lifting cylinder or a hydraulic cylinder to move up and down, thereby causing the first mold 7 and the second mold 8 to close together to form a molding cavity. Plastic materials (such as plastics) can be heated to make them flow and then injected into the molding cavity.

[0026] A rotatable shaft 4 is also provided on the base 1, and a clamping plate 6 is provided at the end of the shaft 4. Two sets of clamping plates 6 are symmetrically arranged, and the two sets of clamping plates 6 abut against the two sides of the first mold 7, thereby stably clamping the first mold 7. The shaft 4 can drive the two sets of clamping plates 6 to rotate the first mold 7 counterclockwise or clockwise 180°, so that the first mold 7 faces downward during the demolding process. This flipping action not only helps to achieve rapid demolding, but also uses gravity to reduce the residual extrusion pressure of the molded part, so that the molded part can be released from the mold more smoothly, avoiding damage to the mold or product due to adhesion.

[0027] The first mold 7 has an air hole 9, and the base 1 is provided with an air supply unit, which is connected to the air hole 9. When the first mold 7 is flipped, the air supply unit delivers gas into the air hole 9. The design of the air supply unit allows the gas to be quickly delivered to the air hole 9 when the first mold 7 is flipped. When the first mold 7 is flipped, the air supply unit delivers compressed gas into the air hole 9. After the gas enters the air hole 9, it forms an air cushion between the molded part and the first mold 7. The generation of this air cushion can not only effectively expand and separate the contact surface between the cooled molded part and the mold, but also reduce the friction between the two and prevent the mold from being damaged during demolding. In addition, this design ensures the integrity and surface quality of the molded part and improves the appearance and performance of the finished product.

[0028] Gas is quickly released through the vent 9, allowing the molded part to detach from the mold rapidly while reducing adhesion and preventing sticking, thus improving the demolding quality of the product. In addition, a sealing protrusion is provided at the bottom of the second mold 8, which corresponds to the vent 9. When the second mold 8 and the first mold 7 are closed, the vent 9 is blocked by the sealing protrusion, thereby preventing plastic material from entering the vent 9 during the injection molding process and ensuring the unobstructed flow of the vent 9 during use.

[0029] Furthermore, the aforementioned air supply unit includes an air supply cylinder 12, on which a connecting rod 13 is slidably connected. The connecting rod 13 extends into the air supply cylinder 12 and a piston is installed therein. The piston is in contact with the inner wall of the air supply cylinder 12. The bottom of the piston is connected to the inner wall of the air supply cylinder 12 through a return spring, which can reset the piston. The air supply cylinder 12 is provided with an inlet pipe and an outlet pipe 10. One-way valves are provided on the inlet pipe and the outlet pipe 10, and the outlet pipe 10 is connected to the air hole 9. When the connecting rod 13 drives the piston to move downward against the air supply cylinder 12, the gas in the air supply cylinder 12 is transported to the air hole 9 by the outlet pipe 10. When the connecting rod 13 drives the piston to move upward against the air supply cylinder 12, the inlet pipe can transport air into the air supply cylinder 12 for replenishment.

[0030] When the connecting rod 13 drives the piston downward, the gas in the air supply cylinder 12 is quickly delivered to the air hole 9 through the air outlet pipe 10 to form an air cushion, thereby realizing the rapid demolding of the molded part. When the connecting rod 13 drives the piston upward, the air inlet pipe draws in external air into the air supply cylinder 12 to replenish the gas and ensure that there is always enough gas in the air supply cylinder 12 for the next round of gas supply.

[0031] To facilitate the rotation of the rotating shaft 4, a mounting plate 2 is fixedly connected to the base 1, and a support plate 11 is fixedly connected to the mounting plate 2. An air supply cylinder 12 is fixedly connected to the support plate 11 and is located on one side of the rotating shaft 4. A motor 3 is fixedly connected to the mounting plate 2, and the rotating shaft 4 is fixedly connected to the output end of the motor 3. The rotating shaft 4 can be driven to rotate by the motor 3. The motor 3 can be a servo motor 3 to improve the accuracy of rotation.

[0032] A pressing plate 5 is fixedly connected to the rotating shaft 4. The pressing plate 5 cooperates with the connecting rod 13. When the rotating shaft 4 rotates counterclockwise by 180°, it will drive the pressing plate 5 to rotate synchronously, thereby pressing the connecting rod 13. In order to improve the stability of the connecting rod 13, a mounting base 14 is fixedly connected to the top of the connecting rod 13. The mounting base 14 has a receiving groove, and a roller 15 is connected to the receiving groove. When the pressing plate 5 presses, it can press the roller 15. At this time, the roller 15 can rotate to cooperate with the pressing plate 5. At this time, the connecting rod 13 is pressed, and the return spring is compressed. After the rotating shaft 4 returns to its original position, the rotating shaft 4 rotates clockwise by 180°. The return spring will drive the piston to return to its original position, so that there is always sufficient gas in the air supply cylinder 12 for the next round of air supply.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flipping fixture for molding equipment, comprising a base (1), wherein a first mold (7) and a second mold (8) are disposed on the base (1), the two sets of molds forming a molding cavity, characterized in that, A rotating shaft (4) is rotatably connected to the base (1). The shaft (4) is provided with a clamping plate (6) at its end. The clamping plate (6) abuts against the outer wall of the first mold (7). The first mold (7) is provided with an air hole (9). The base (1) is provided with an air supply part. The air supply part is connected to the air hole (9). When the first mold (7) is flipped, the air supply part delivers gas into the air hole (9).

2. The flipping fixture for molding equipment according to claim 1, characterized in that, The air supply unit includes an air supply cylinder (12), on which a connecting rod (13) is slidably connected. The connecting rod (13) extends into the air supply cylinder (12) and a piston is provided therein. The piston is in contact with the inner wall of the air supply cylinder (12). The bottom of the piston is connected to the inner wall of the air supply cylinder (12) through a return spring. An air inlet pipe and an air outlet pipe (10) are provided on the air supply cylinder (12). A one-way valve is provided on the air inlet pipe and the air outlet pipe (10), and the air outlet pipe (10) is connected to the air hole (9).

3. A flipping fixture for molding equipment according to claim 2, characterized in that, A mounting plate (2) is fixedly connected to the base (1), a support plate (11) is fixedly connected to the mounting plate (2), an air supply cylinder (12) is fixedly connected to the support plate (11), and the air supply cylinder (12) is located on one side of the rotating shaft (4). A motor (3) is fixedly connected to the mounting plate (2), the rotating shaft (4) is fixedly connected to the output end of the motor (3), a pressing plate (5) is fixedly connected to the rotating shaft (4), and the pressing plate (5) cooperates with the connecting rod (13).

4. A flipping fixture for molding equipment according to claim 3, characterized in that, The top of the connecting rod (13) is fixedly connected to a mounting base (14), and a receiving groove is provided on the mounting base (14), and a roller (15) is connected to the receiving groove.

5. A flipping fixture for molding equipment according to claim 1, characterized in that, Two sets of clamping plates (6) are symmetrically arranged, and the two sets of clamping plates (6) abut against the two sides of the first mold (7).

6. A flipping fixture for molding equipment according to claim 1, characterized in that, The bottom of the second mold (8) is provided with a sealing protrusion, which corresponds to the air hole (9). When the second mold (8) and the first mold (7) are closed, the air hole (9) is blocked by the sealing protrusion.

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