Injection mold convenient to demold

Abstract

The utility model discloses an injection mold convenient for demolding, which relates to the technical field of molds and comprises a mounting bottom plate and a rapid cooling demolding device, a servo motor is fixedly mounted at the top of the mounting bottom plate, the output end of the servo motor is fixedly connected with a disc, four injection molding cavities are circularly formed in the top of the disc at equal intervals, demolding push plates are slidably connected into the four injection molding cavities, and four sliding rods are circularly slidably connected into the disc at equal intervals; the four sliding rods are fixedly connected to the surfaces of the four demolding push plates correspondingly. The rapid cooling and demolding device comprises an air blower, an exhaust bent pipe, a conical spraying barrel and a hydraulic cylinder, the air blower is fixedly installed at the top of the installation bottom plate, the upper end of the exhaust bent pipe is fixedly installed at the exhaust end of the air blower, air is blown to the surface of a product through the air blower to accelerate cooling, and then the product can be immediately cooled after being formed; and the cooling time after product molding is shortened, and the product injection efficiency of the injection mold is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, in particular to a kind of injection mould that facilitate demoulding. BACKGROUND

[0002] Injection mould is a tool for producing plastic products, and is also a tool for giving plastic products complete structure and accurate size, injection molding is a kind of processing method used when mass producing some complex-shaped parts, specifically refers to the heated molten plastic is injected into mold cavity by injection molding machine high pressure, after cooling solidification, get shaped product.

[0003] The lower die surface of injection mould is provided with cavity for forming, during injection, usually using injection molding machine to inject heated molten rubber into cavity, then the product is formed by the extrusion effect between upper die plate and lower die plate, after injection molding, the traditional injection mould is difficult to realize demolding, and due to the high viscosity of rubber, it is not easy to demold, the mold for rubber injection molding in the prior art has slow cooling speed, usually allowing the product to cool naturally, so the product cannot be cooled down immediately after molding, which makes the cooling time of the product after molding longer, reducing the efficiency of injection molding product of injection mould. SUMMARY

[0004] The utility model discloses a kind of injection moulds that facilitate demoulding, can solve the problem that the mold for rubber injection molding in the prior art has slow cooling speed, usually allowing the product to cool naturally, so the product cannot be cooled down immediately after molding, which makes the cooling time of the product after molding longer, reducing the efficiency of injection molding product of injection mould.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of injection mould that facilitate demoulding, including installation base plate and quick cooling demolding device;The top of installation base plate is fixedly installed with servo motor, the output of servo motor is fixedly connected with disc, the top of disc is circularly and equidistantly provided with four injection cavities, the inside of four injection cavities is slidably connected with demolding push plate, the inside of disc is circularly and equidistantly slidably connected with four slide rods, four slide rods are fixedly connected on the surface of four demolding push plates respectively;Quick cooling demolding device includes air blower, exhaust elbow, conical spray barrel and hydraulic cylinder, air blower is fixedly installed on the top of installation base plate, the upper end of exhaust elbow is fixedly installed at the exhaust end of air blower.

[0006] Preferably, the top of installation base plate is fixedly installed with support frame, the upper end of support frame is fixedly installed with hydraulic elevator.

[0007] Preferably, the output of hydraulic elevator is fixedly installed with forming pressure plate, forming pressure plate is slidably connected in the inside of injection cavity.

[0008] Preferably, the top of the molding plate has an injection hole that penetrates the interior of the molding plate.

[0009] Preferably, an injection molding machine is fixedly installed at the upper end of the support frame, and a material conveying hose is fixedly installed at the output end of the injection molding machine. The end of the material conveying hose away from the injection molding machine is fixedly installed inside the injection hole.

[0010] Preferably, the conical spray nozzle is fixedly connected to the lower end of the exhaust bend.

[0011] Preferably, the hydraulic cylinder is fixedly mounted on the top of the mounting base plate, and the output end of the hydraulic cylinder is in contact with the bottom of the slide rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This injection mold facilitates demolding. The demolding pusher slides upward and pushes the product upward to move away from the inside of the injection cavity to complete demolding. The blower blows air onto the surface of the product to accelerate cooling, so that the product can cool down immediately after molding, reducing the cooling time after molding and improving the efficiency of injection molding. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the overall structure of an injection mold that facilitates demolding according to the present invention;

[0016] Figure 2 This is a schematic diagram of the bottom structure of the disc of this utility model;

[0017] Figure 3 This is a schematic diagram of the surface structure of the disc of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the disc of this utility model.

[0019] Reference numerals: 1. Mounting base plate; 2. Servo motor; 3. Disc; 4. Injection cavity; 5. Demolding push plate; 6. Slide bar; 7. Support frame; 8. Hydraulic lift; 9. Forming plate; 10. Injection hole; 11. Injection molding machine; 12. Material conveying hose; 13. Blower; 14. Exhaust bend; 15. Conical spray nozzle; 16. Hydraulic cylinder. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0022] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Please see Figures 1-4 This utility model provides a technical solution: an injection mold for easy demolding, including a mounting base plate 1 and a rapid cooling demolding device. A servo motor 2 is fixedly mounted on the top of the mounting base plate 1. A disc 3 is fixedly connected to the output end of the servo motor 2. The top of the disc 3 has four injection cavities 4 equidistantly arranged in a circular shape. Demolding push plates 5 are slidably connected inside each of the four injection cavities 4. Four sliding rods 6 are equidistantly connected in a circular shape inside the disc 3. The four sliding rods 6 are respectively fixedly connected to the surfaces of the four demolding push plates 5. A support frame 7 is fixedly installed on the top of the mold 1. A hydraulic lift 8 is fixedly installed on the upper end of the support frame 7. A forming plate 9 is fixedly installed on the output end of the hydraulic lift 8. The forming plate 9 is slidably connected to the inside of the injection cavity 4. An injection hole 10 is opened on the top of the forming plate 9. The injection hole 10 penetrates the inside of the forming plate 9. An injection molding machine 11 is fixedly installed on the upper end of the support frame 7. A material conveying hose 12 is fixedly installed on the output end of the injection molding machine 11. The end of the material conveying hose 12 away from the injection molding machine 11 is fixedly installed inside the injection hole 10.

[0025] After the operator starts the servo motor 2, the output of the servo motor 2 rotates, which drives the disc 3 to rotate intermittently by 90 degrees. The servo motor 2 is a new type of Panasonic motor with a brake; it adds a brake to a standard servo motor, enabling more efficient control and safer operation. The brake maintains the motor's position through braking torque when the servo motor 2 stops, thus keeping the disc 3 in different positions. The rotation of the disc 3 drives the injection cavity 4 to rotate to the position directly below the molding platen 9. At this time, the output of the hydraulic lift 8 slides downwards. The molding platen 9 slides downward into the injection cavity 4. Finally, the injection molding machine 11 injects the molten rubber into the injection hole 10 through the material conveying hose 12, and injects it into the injection cavity 4 through the injection hole 10, thereby forming the product inside the injection cavity 4. Then, the output end of the hydraulic lift 8 slides upward and drives the molding platen 9 to slide upward and move out of the injection cavity 4. The disc 3 rotates the formed product ninety degrees again. At this time, the molding platen 9 can slide downward again into another injection cavity 4 to form the product again.

[0026] The rapid cooling demolding device includes a blower 13, an exhaust bend 14, a conical spray nozzle 15, and a hydraulic cylinder 16. The blower 13 is fixedly installed on the top of the mounting base plate 1. The upper end of the exhaust bend 14 is fixedly installed on the exhaust end of the blower 13. The conical spray nozzle 15 is fixedly connected to the lower end of the exhaust bend 14. The hydraulic cylinder 16 is fixedly installed on the top of the mounting base plate 1, and the output end of the hydraulic cylinder 16 is in contact with the bottom of the slide rod 6.

[0027] After the molded product rotates 90 degrees, it moves to the lower side of the conical spray nozzle 15 and slides. At this time, the operator starts the blower 13, which then exhausts air into the conical spray nozzle 15 through the exhaust pipe 14. The air is then blown downwards onto the surface of the product to cool it, thus accelerating the cooling speed. After the product has cooled down, the disc 3 rotates 90 degrees again, causing the product and the bottom demolding push plate 5 to rotate 90 degrees again. This also causes the slide rod 6 to rotate 90 degrees and move to the upper side of the hydraulic cylinder 16. At this time, the operator starts the hydraulic cylinder 16, and the output end of the hydraulic cylinder 16 slides upwards, causing the slide rod 6 and the demolding push plate 5 to slide upwards. The demolding push plate 5 slides upwards and pushes the product upwards to move away from the injection cavity 4, completing the demolding. The blower 13 blows air onto the surface of the product to accelerate cooling, allowing the product to cool down immediately after molding, reducing the cooling time after molding and improving the efficiency of injection molding.

[0028] Structural Description:

[0029] Servo Motor 2: The output end of servo motor 2 is fixedly connected to disk 3 to provide power for the rotation of the mold; this is a new type of Panasonic motor with brake, which adds a brake to the ordinary servo motor; the design of this brake allows the motor to maintain its position through braking torque when the motor stops running, thereby ensuring that disk 3 can accurately stop at the required position; for example, when disk 3 drives injection cavity 4 to rotate to different operating positions (such as the position directly below molding platen 9), the brake can prevent disk 3 from deviating from the correct position due to inertia or external force, realizing precise intermittent rotation control, with each rotation angle being ninety degrees, ensuring the orderly progress of the injection molding process;

[0030] Disc 3: The top of the disc 3 is circular with four equally spaced injection cavities 4, which is one of the main injection molding sites; it is connected to the servo motor 2 and rotates intermittently under the drive of the motor, so that the four injection cavities 4 can reach different operation positions in sequence, such as injection, cooling and demolding, to realize cyclic operation and improve production efficiency;

[0031] Injection Cavity 4: Injection cavity 4 is used to contain molten rubber and allow the product to be molded in it; the demolding push plate 5 is slidably connected inside it. During injection, the molten rubber is pressed by the molding plate 9 in the injection cavity 4, and after cooling, it becomes the product. Finally, it is pushed upward by the demolding push plate 5 to achieve demolding; its design needs to take into account the shape and size of the product to ensure the precision and quality of product molding.

[0032] Demolding ejector plate 5: The demolding ejector plate 5 is located inside and slidably connected to the injection cavity 4, playing a key role in the demolding process; it is fixedly connected to the slide rod 6, and when the slide rod 6 slides upward under the drive of the hydraulic cylinder 16, the demolding ejector plate 5 will move upward accordingly, pushing the molded product out of the injection cavity 4, realizing the demolding function, avoiding the product from sticking to the inside of the cavity, and ensuring the smooth removal of the product;

[0033] Slide rod 6: On the one hand, slide rod 6 serves as a connecting part of the demolding push plate 5, which slides to connect the demolding push plate 5 with the disc 3 to ensure the stability of the movement trajectory of the demolding push plate 5; on the other hand, it cooperates with the output end of the hydraulic cylinder 16. When the hydraulic cylinder 16 is activated, slide rod 6 can slide within the disc 3, converting the linear motion of the hydraulic cylinder 16 into the linear motion of the demolding push plate 5, thus completing the demolding operation.

[0034] Support frame 7: The support frame 7 is installed on the top of the mounting base plate 1 to provide support for the hydraulic lift 8 and the injection molding machine 11; to ensure that the hydraulic lift 8 and the injection molding machine 11 are at the right height position, so as to ensure that the molding platen 9 and the material conveying hose 12 can work normally, and to ensure the stability and accuracy of the entire injection molding process;

[0035] Hydraulic lifting platform 8: The output end of the hydraulic lifting platform 8 is fixedly installed with a molding plate 9. By sliding up and down the output end, the molding plate 9 is driven into or out of the injection cavity 4. During the injection stage, the hydraulic lifting platform 8 causes the molding plate 9 to slide downward into the injection cavity 4, compacting the molten rubber into shape. After the injection is completed, the hydraulic lifting platform 8 causes the molding plate 9 to slide upward, causing the molding plate 9 to move out of the injection cavity 4, preparing for the next injection operation.

[0036] Molding plate 9: Molding plate 9 is slidably connected to the inside of injection cavity 4. During the injection process, it applies pressure to the molten rubber to form it in the injection cavity 4. An injection hole 10 is provided at the top. The injection hole 10 penetrates the inside of molding plate 9, which facilitates the injection molding machine 11 to inject molten rubber into the injection cavity 4 through the material conveying hose 12.

[0037] Injection hole 10: Injection hole 10 is the channel through which molten rubber enters the injection cavity 4. The injection molding machine 11 injects molten rubber into injection hole 10 through material delivery hose 12, and then enters injection cavity 4 through injection hole 10, so that the product is formed in injection cavity 4. The design of injection hole 10 needs to take into account factors such as flow rate and pressure to ensure that the rubber can enter injection cavity 4 evenly and ensure the molding quality of the product.

[0038] Injection molding machine 11: Injection molding machine 11 is the core component in the injection molding process. It is responsible for heating and melting the rubber and conveying it to the injection hole 10 through the material conveying hose 12. Its output end is connected to the material conveying hose 12. According to the requirements of the injection molding process, it controls parameters such as the melting temperature of the rubber, the injection pressure and the injection speed to ensure the smooth progress of injection molding.

[0039] Material conveying hose 12: The material conveying hose 12 serves to connect the injection molding machine 11 and the injection hole 10, and to transfer the molten rubber from the injection molding machine 11 to the injection hole 10. The selection of its length and material needs to take into account the temperature, pressure and fluidity of the rubber to avoid rubber leakage or blockage, while ensuring a certain degree of flexibility to adapt to the movement of the mold.

[0040] Blower 13: Blower 13 is fixedly installed on the top of the mounting base plate 1 and is part of the rapid cooling demolding device. After starting, it exhausts air into the conical spray nozzle 15 through the exhaust bend 14, using the air to cool the product surface, accelerating the cooling speed of the product, thereby shortening the product molding cycle and improving production efficiency.

[0041] Exhaust bend 14: The exhaust bend 14 connects the exhaust end of the blower 13 and the conical spray nozzle 15, and plays the role of guiding airflow. Its shape and size design need to take into account the airflow resistance and flow rate to ensure that the air generated by the blower 13 can smoothly enter the conical spray nozzle 15 to achieve effective cooling of the product.

[0042] Conical spray nozzle 15: The conical spray nozzle 15 is fixedly connected to the lower end of the exhaust bend 14, which concentrates the air from the blower 13 and blows it downwards onto the product surface; the conical design may be to make the air more concentrated and the flow rate faster, enhance the cooling effect, and ensure that the product can cool down as soon as possible after molding, so as to prepare for the subsequent demolding operation.

[0043] Hydraulic cylinder 16: The hydraulic cylinder 16 is installed on the top of the mounting base plate 1, and its output end is in contact with the bottom of the slide rod 6. During the demolding stage, after the product has cooled down, the hydraulic cylinder 16 is activated, and its output end slides upward, pushing the slide rod 6 and the demolding push plate 5 upward, so that the product is demolded from the injection cavity 4, realizing a fast and stable demolding operation.

[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An injection mold that facilitates demolding, characterized in that, include: Install the base plate (1) and the rapid cooling demolding device; A servo motor (2) is fixedly installed on the top of the mounting base plate (1). A disc (3) is fixedly connected to the output end of the servo motor (2). Four injection cavities (4) are equidistantly arranged in a circular shape on the top of the disc (3). Demolding push plates (5) are slidably connected inside the four injection cavities (4). Four slide rods (6) are equidistantly arranged in a circular shape inside the disc (3). The four slide rods (6) are fixedly connected to the surfaces of the four demolding push plates (5). The rapid cooling demolding device includes a blower (13), an exhaust bend (14), a conical spray nozzle (15), and a hydraulic cylinder (16). The blower (13) is fixedly installed on the top of the mounting base plate (1), and the upper end of the exhaust bend (14) is fixedly installed at the exhaust end of the blower (13).

2. The injection mold for easy demolding according to claim 1, characterized in that: A support frame (7) is fixedly installed on the top of the mounting base plate (1), and a hydraulic lift (8) is fixedly installed on the upper end of the support frame (7).

3. The injection mold for easy demolding according to claim 2, characterized in that: The output end of the hydraulic lift (8) is fixedly installed with a forming plate (9), which is slidably connected inside the injection molding cavity (4).

4. The injection mold for easy demolding according to claim 3, characterized in that: The top of the molding plate (9) is provided with an injection hole (10), which penetrates the interior of the molding plate (9).

5. The injection mold for easy demolding according to claim 4, characterized in that: An injection molding machine (11) is fixedly installed at the upper end of the support frame (7). A material conveying hose (12) is fixedly installed at the output end of the injection molding machine (11). The end of the material conveying hose (12) away from the injection molding machine (11) is fixedly installed inside the injection hole (10).

6. The injection mold for easy demolding according to claim 1, characterized in that: The conical spray nozzle (15) is fixedly connected to the lower end of the exhaust bend (14).

7. The injection mold for easy demolding according to claim 1, characterized in that: The hydraulic cylinder (16) is fixedly installed on the top of the mounting base plate (1), and the output end of the hydraulic cylinder (16) is in contact with the bottom of the slide rod (6).

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