Injection mold facilitating material removal

Abstract

The utility model discloses an injection mold convenient to material stripping relates to injection mold technical field. A kind of injection mold convenient to material stripping, including support seat, top plate and upper die, support seat is provided with stripping mechanism, stripping mechanism includes lower mould, stripper plate and connecting frame, lower mould is installed in the groove inside on support seat upper surface, the outer wall of stripper plate is slidably connected with the inside of lower mould, the two tapered blocks grooves are set up in the inside wall of lower mould, the force that the connecting frame is generated by reset spring in stripping mechanism makes the connecting frame move up while driving connecting frame to move up, then stripper plate is slid out from the inside of lower mould by connecting frame to move up and drive, then staff can take off the forming mold from the protrusion on stripper plate with glove, so it avoids that staff needs to knock lower mould by tool to make forming mold and lower mould contact, effectively improve the stripping efficiency of forming mold, improve the practicability of equipment simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold that facilitates material removal. Background Technology

[0002] An injection mold is a tool used for plastic injection molding. It mainly consists of two parts: a moving mold and a fixed mold. The fixed mold is fixed on the fixed platen of the injection molding machine, and the moving mold is fixed on the moving platen of the injection molding machine. The core function of an injection mold is to inject molten plastic into the mold cavity under the pressure of the injection molding machine, and after cooling, form the desired plastic product.

[0003] Existing injection molds typically consist of two parts: an upper mold and a lower mold. The lower mold is fixed to the fixed platen of the injection molding machine, while the upper mold is fixed to the moving platen. During injection molding, molten plastic is injected into the mold cavity, and after cooling and solidification, it forms a plastic product. However, when demolding, the plastic product usually needs to be manually removed from the lower mold by striking the outer wall with a pry bar. Then, workers wearing gloves remove the mold. This process is not only time-consuming and labor-intensive, but it can also easily damage the plastic product, affecting product quality and reducing the practicality of the equipment. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an injection mold that facilitates material removal. This solves the problem that when demolding an injection mold, it is usually necessary to manually knock the outer wall of the lower mold with a pry bar to remove the plastic product from the lower mold, and then the worker wearing gloves removes the molding mold. This is not only time-consuming and laborious, but also easily damages the plastic product, affects the product quality, and reduces the practicality of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for easy material removal, comprising a support base, a top plate and an upper mold, wherein a demolding mechanism is provided on the support base;

[0006] The demolding mechanism includes a lower mold, a demolding template, and a connecting frame. The lower mold is installed inside a groove on the upper surface of the support base. The outer wall of the demolding template is slidably connected to the interior of the lower mold. Two conical block grooves are opened on both sides of the inner wall of the lower mold. The connecting frame is sleeved on the outer wall of the lower mold. Two conical blocks are fixedly connected to both sides of the outer wall of the demolding template.

[0007] The lower mold has through slots on both sides, and the upper surfaces of both sides of the support base have grooves. Fixing rods are fixedly connected inside the two grooves. Connecting frames are fixedly connected to the upper surfaces of both sides of the connecting frame. Return springs are sleeved on the outer walls of the two fixing rods.

[0008] Preferably, the template is inverted "U" shape, the outer walls of the four conical blocks are slidably connected to the interior of the corresponding conical block groove, and the outer wall of the connecting frame is slidably connected to the interior of the groove on the upper surface of the support base;

[0009] The upper surface of the support base has a groove that communicates with the interior of the lower mold through a through groove.

[0010] Preferably, the connecting plates on both sides of the connecting frame extend through the through groove into the interior of the lower mold and are fixedly connected to the outer walls on both sides of the demolding template;

[0011] Both connecting brackets are L-shaped, and the interior of the two grooves is connected to the interior of the groove on the upper surface of the support base.

[0012] Preferably, the upper ends of the two connecting brackets are provided with slots for sliding connection with the outer wall of the corresponding fixing rod;

[0013] The two ends of the two return springs are fixedly connected to the inner wall of the corresponding groove and the upper outer wall of the connecting frame, respectively.

[0014] Preferably, the ends of the four support columns on the upper surface of the support base that are away from the support base are all fixedly connected to the lower surface of the top plate, and a cylinder is fixedly connected to the upper surface of the top plate.

[0015] The cylinder's output end extends slidably to the outside of the top plate and is fixedly connected to the upper surface of the upper mold. Two slide rods are slidably connected to the upper surface of the top plate.

[0016] Preferably, a cooling pipe is installed inside the lower end of the support base, and both ends of the cooling pipe are fixedly extended to the outside of the lower end of the support base and are fixedly connected to a connecting flange.

[0017] Both slide rods extend to the outside of the top plate at the end closest to the upper mold and are fixedly connected to the upper surface of the upper mold.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This easy-to-release injection mold uses the force generated by the return spring in the demolding mechanism to move the connecting frame upwards, which in turn moves the connecting frame upwards. Then, the upward movement of the connecting frame causes the demolding platen to slide out from inside the lower mold. Then, the operator, wearing gloves, can remove the molding mold from the protrusion on the demolding platen. This avoids the need for the operator to use tools to knock the lower mold to separate the molding mold from the lower mold, effectively improving the demolding efficiency of the molding mold and enhancing the practicality of the equipment. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of the template of this utility model;

[0023] Figure 3 This is a schematic diagram of the external structure of the cooling pipe of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the support base of this utility model.

[0025] Reference numerals in the attached drawings: 1. Support base; 2. Lower mold; 3. Release plate; 4. Conical block groove; 5. Connecting frame; 6. Cylinder; 7. Top plate; 8. Fixing rod; 9. Connecting flange; 10. Groove; 11. Return spring; 12. Through groove; 13. Upper mold; 14. Slide rod; 15. Cooling pipe; 16. Connecting frame; 17. Conical block. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Please see Figure 1-4This utility model provides a technical solution: an injection mold that facilitates material removal, including a support base 1, a top plate 7 and an upper mold 13;

[0031] A demolding mechanism is provided on the support base 1;

[0032] The demolding mechanism includes a lower mold 2, a demolding template 3, and a connecting frame 16. The lower mold 2 is installed inside a groove on the upper surface of the support base 1. The outer wall of the demolding template 3 is slidably connected to the interior of the lower mold 2. Two conical block grooves 4 are formed on both sides of the inner wall of the lower mold 2. The demolding template 3 is inverted "U" shape. The connecting frame 16 is sleeved on the outer wall of the lower mold 2. Two conical blocks 17 are fixedly connected to both sides of the outer wall of the demolding template 3. The outer walls of the four conical blocks 17 are slidably connected to the interior of the corresponding conical block grooves 4. The outer wall of the connecting frame 16 is slidably connected to the groove on the upper surface of the support base 1. Through grooves 12 are formed on both sides of the lower mold 2. The groove on the upper surface of the support base 1 communicates with the interior of the lower mold 2 through the through grooves 12. The connecting plates on both sides of the connecting frame 16 extend through the through groove 12 into the interior of the lower mold 2 and are fixedly connected to the outer walls on both sides of the demolding template 3. The upper surfaces on both sides of the support base 1 are provided with grooves 10, and the interiors of the two grooves 10 are fixedly connected with fixing rods 8. The upper surfaces on both sides of the connecting frame 16 are fixedly connected with connecting frames 5. The two connecting frames 5 are both "L" shaped. The interiors of the two grooves 10 are connected to the interiors of the grooves on the upper surface of the support base 1. The upper ends of the two connecting frames 5 are provided with grooves that are slidably connected to the outer walls of the corresponding fixing rods 8. The outer walls of the two fixing rods 8 are fitted with return springs 11. The two ends of the two return springs 11 are fixedly connected to the inner walls of the corresponding grooves 10 and the upper outer walls of the connecting frames 5, respectively.

[0033] Among them, the ends of the four support columns on the upper surface of the support base 1 that are away from the support base 1 are all fixedly connected to the lower surface of the top plate 7. The upper surface of the top plate 7 is fixedly connected to a cylinder 6. The output end of the cylinder 6 slides to the outside of the top plate 7 and is fixedly connected to the upper surface of the upper mold 13. Two slide rods 14 are slidably connected to the upper surface of the top plate 7. A cooling pipe 15 is installed inside the lower end of the support base 1. Both ends of the cooling pipe 15 are fixedly extended to the outside of the lower end of the support base 1 and are fixedly connected to a connecting flange 9. The ends of the two slide rods 14 that are close to the upper mold 13 slide to the outside of the top plate 7 and are fixedly connected to the upper surface of the upper mold 13.

[0034] Furthermore, when using this device, it is started by connecting to an external power source. The cylinder 6 drives the upper mold 13 to move downwards. Guided by the slide rod 14, the upper mold 13 and the lower mold 2 are closed. Thus, the groove of the upper mold 13 and the protrusion on the ejector plate 3 cooperate to form a complete cavity. At the same time, the ejector plate 3 is forced into the interior of the lower mold 2 by the pressure applied by the upper mold 13. Then, the ejector plate 3 drives the connecting frame 16 to move downwards, which in turn drives the connecting bracket 5 to move downwards, and at the same time, drives the return spring 11 to contract. Then, the molten plastic is injected into the cavity through the nozzle of the injection molding machine. Meanwhile, the cooling pipe 15 is connected to the external cooling system through the connecting flange 9. The system is connected, and then the external cooling system delivers cooling water into the cooling pipe 15 to cool the mold. After the mold is formed, the output end of the cylinder 6 drives the upper mold 13 to disengage from the lower mold 2. The force exerted by the return spring 11 on the connecting frame 5 causes the connecting frame 5 to move upward, while simultaneously driving the connecting frame 16 to move upward. Then, the upward movement of the connecting frame 16 causes the ejector plate 3 to slide out from inside the lower mold 2. At the same time, when the upper mold 13 is not engaged with the lower mold 2, the action exerted by the ejector plate 3 on it by the return spring 11 is always outside the lower mold 2. Then, the operator wearing gloves can remove the forming mold from the protrusion on the ejector plate 3.

[0035] The force exerted by the reset spring 11 on the connecting frame 5 in the demolding mechanism causes the connecting frame 5 to move upward, which in turn drives the connecting frame 16 to move upward. Then, the upward movement of the connecting frame 16 causes the demolding template 3 to slide out from inside the lower mold 2. Then, the operator wearing gloves can remove the molding mold from the protrusion on the demolding template 3. This avoids the need for the operator to use tools to knock the lower mold 2 to separate the molding mold from the lower mold 2, effectively improving the demolding efficiency of the molding mold and improving the practicality of the equipment.

[0036] Structural Description: Support Base 1: As the foundation of the entire mold, it provides a stable support platform. Through fixed connection, it ensures the stable installation of components such as the lower mold 2 and cooling pipe 15, providing a stable operating foundation for the entire mold;

[0037] Lower mold 2: Installed inside the groove on the upper surface of the support base 1, it cooperates with the upper mold 13 to form a cavity. The sliding connection design allows the demolding template 3 to enter and exit smoothly, facilitating demolding operations.

[0038] Demolding template 3: It is in the shape of an inverted "U". Its outer wall is slidably connected to the inside of the lower mold 2. Conical blocks 17 are fixedly connected on both sides. Through the sliding connection, it can flexibly enter and exit the lower mold 2 to achieve efficient demolding.

[0039] Fixed rod 8: Fixed inside the groove 10, used to support the return spring 11, stabilize the return spring 11, and provide reliable return force;

[0040] Connecting frame 16: It is sleeved on the outer wall of the lower mold 2 and fixedly connected to the demolding template 3 through the connecting plate. It transmits the ejection force and drives the demolding template 3 and the connecting frame 5 to move synchronously to achieve demolding.

[0041] Cylinder 6: Fixed on the upper surface of the top plate 7, with its output end fixedly connected to the upper mold 13, providing powerful force to drive the upper mold 13 to move up and down, thereby realizing the closing and opening of the mold;

[0042] Upper mold 13: Guided by slide bar 14, it closes with lower mold 2 to form a cavity. The groove design cooperates with the protrusion of ejector plate 3 to form a complete cavity, ensuring accurate injection of plastic.

[0043] Return spring 11: It is sleeved on the fixed rod 8, and its two ends are fixedly connected to the inner wall of the groove 10 and the upper outer wall of the connecting frame 5 respectively. It provides a return force to push the connecting frame 5 and the connecting frame 16 to move upward, thereby realizing the reset of the demolding mechanism.

[0044] Connecting frame 5: L-shaped structure, fixed on the upper surfaces of both sides of the connecting frame 16, with a groove at the upper end for sliding connection with the outer wall of the fixing rod 8. Through the sliding connection, the reset spring 11 is reset, which drives the connecting frame 16 and the release plate 3 to move upward.

[0045] 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 for easy material removal, comprising a support base (1), a top plate (7), and an upper mold (13), characterized in that: The support base (1) is provided with a demolding mechanism; The demolding mechanism includes a lower mold (2), a demolding template (3), and a connecting frame (16). The lower mold (2) is installed inside a groove on the upper surface of the support base (1). The outer wall of the demolding template (3) is slidably connected to the interior of the lower mold (2). Two conical block grooves (4) are opened on both sides of the inner wall of the lower mold (2). The connecting frame (16) is sleeved on the outer wall of the lower mold (2). Two conical blocks (17) are fixedly connected to both sides of the outer wall of the demolding template (3). Among them, the lower mold (2) has through slots (12) on both sides, the support base (1) has grooves (10) on both sides of the upper surface, the two grooves (10) are fixedly connected with fixing rods (8), the two sides of the connecting frame (16) are fixedly connected with connecting brackets (5), and the outer walls of the two fixing rods (8) are fitted with reset springs (11).

2. The injection mold for easy material removal according to claim 1, characterized in that: The template (3) is in the shape of an inverted "U". The outer walls of the four conical blocks (17) are slidably connected to the interior of the corresponding conical block groove (4). The outer wall of the connecting frame (16) is slidably connected to the interior of the groove on the upper surface of the support base (1). Among them, the upper surface of the support base (1) has a groove that communicates with the interior of the lower mold (2) through the through groove (12).

3. The injection mold for easy material removal according to claim 1, characterized in that: The connecting plates on both sides of the connecting frame (16) extend through the through groove (12) into the interior of the lower mold (2) and are fixedly connected to the outer walls on both sides of the demolding template (3); Among them, both connecting brackets (5) are L-shaped, and the interior of the two grooves (10) is connected to the interior of the groove on the upper surface of the support base (1).

4. The injection mold for easy material removal according to claim 1, characterized in that: The upper ends of the two connecting frames (5) are slotted and slidably connected to the outer wall of the corresponding fixing rod (8); The two ends of the two return springs (11) are fixedly connected to the inner wall of the corresponding groove (10) and the upper outer wall of the connecting frame (5), respectively.

5. The injection mold for easy material removal according to claim 1, characterized in that: The four support columns on the upper surface of the support base (1) are all fixedly connected to the lower surface of the top plate (7) at the ends away from the support base (1), and a cylinder (6) is fixedly connected to the upper surface of the top plate (7). The output end of the cylinder (6) extends slidably to the outside of the top plate (7) and is fixedly connected to the upper surface of the upper mold (13). Two slide rods (14) are slidably connected to the upper surface of the top plate (7).

6. The injection mold for easy material removal according to claim 1, characterized in that: A cooling pipe (15) is installed inside the lower end of the support base (1). Both ends of the cooling pipe (15) are fixedly extended to the outside of the lower end of the support base (1) and are fixedly connected to a connecting flange (9). Among them, the ends of the two slide rods (14) near the upper mold (13) both slide to the outside of the top plate (7) and are fixedly connected to the upper surface of the upper mold (13).

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