An injection mold

Abstract

The utility model discloses an injection mold, including upper die and lower die, the lower die is equipped with the boss part, and the boss part has the forming cavity between upper die, and the boss part periphery is equipped with a plurality of sliding blocks, and the sliding block is located the outside of forming cavity, and the sliding block sets up on the inclined bar, and is equipped with the limit component between adjacent sliding blocks, and a plurality of sliding blocks are movably connected and are annular components through the limit component, limit component is connected with drive assembly, and drive assembly makes the sliding block move along the inclined bar, and when drive assembly drives the sliding block to move to the direction of upper die, annular component expands, and the sliding block is away from the boss part. The utility model is connected through the limit component, can make the sliding block synchronous sliding, promotes the demoulding effect and efficiency.

Description

Technical Field

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

[0002] Injection molds are high-precision tools used to produce plastic products. Their core function is to inject molten plastic into a mold cavity, which then cools and solidifies to form the desired product shape. The product is formed within the mold cavity, which directly determines the shape and size of the plastic product. Currently, during demolding, protrusions or other structures on the outer surface of the product can easily become stuck in the cavity and difficult to remove. Side-pull sliding block structures are commonly used for demolding. However, if the product has annular protrusions along its circumference, multiple side-pull sliding block structures are needed to individually control demolding, resulting in poor demolding effectiveness and efficiency. Utility Model Content

[0003] The purpose of this invention is to solve the technical problem of demolding existing injection molds.

[0004] To achieve the objectives of this utility model, the following technical solution is adopted:

[0005] An injection mold includes an upper mold and a lower mold. The lower mold has a protrusion, and a molding cavity is formed between the protrusion and the upper mold. A plurality of sliders are provided around the protrusion, and the sliders are located outside the molding cavity. The sliders are mounted on a slanted rod, and a limiting component is provided between adjacent sliders. The plurality of sliders are movably connected by the limiting component to form a ring assembly. The limiting component is connected to a driving component. The driving component causes the sliders to move along the slanted rod. When the driving component drives the sliders to move towards the upper mold, the ring assembly expands, and the sliders move away from the protrusion.

[0006] In some embodiments, the limiting component includes a limiting block and a locking member. The limiting block is disposed in the limiting groove of an adjacent slider, and the locking member passes through the limiting block and is connected to the driving component. When the slider moves, the limiting block moves relative to the slider in the limiting groove.

[0007] In some embodiments, the drive assembly includes a drive rod, a connecting plate, and a push rod. A plurality of drive rods are arranged in parallel and connected to the connecting plate. The connecting plate presses against the slider. A push rod is provided in the middle of the connecting plate and is connected to a locking member.

[0008] In some embodiments, the slider has a groove on its side, and the grooves of adjacent sliders form a through hole, through which the locking member passes and is threadedly connected to the push rod.

[0009] In some embodiments, the top surface of the slider is a plane, the limiting groove is disposed on the top surface, the slider is arc-shaped, the side surface of the slider is inclined, and the side surface is correspondingly disposed with the lower mold.

[0010] In some embodiments, the slider is provided with a plurality of mounting holes, and the inclined rod passes through the mounting holes.

[0011] In some embodiments, the inner side of the slider is provided with a recess, the shape of which corresponds to the shape of the product.

[0012] The injection mold provided by this utility model has the following advantages:

[0013] This invention uses several sliders connected by a limiting component, which enables the sliders to slide synchronously, improving demolding effect and efficiency. At the same time, the limiting component does not affect the fit between the slider and the upper mold, avoiding affecting product molding. In addition, by dispersing the driving pressure, the service life of the slider can be extended. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of an injection mold provided in an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the slider provided in an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the ring component provided in an embodiment of the present utility model.

[0018] Figure 4 This is a schematic diagram of the driving component provided in an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the joint between the slider and the product provided in this embodiment of the utility model.

[0020] In the attached image:

[0021] 1. Upper mold; 2. Lower mold; 3. Molding cavity; 4. Slider; 5. Angled rod; 6. Limiting component; 7. Ring component; 8. Drive component; 10. Product; 11. Inlet; 21. Protrusion; 41. Limiting groove; 42. Top surface; 42. Groove; 43. Side surface; 44. Mounting hole; 46. Recess; 61. Limiting block; 62. Locking component; 81. Drive rod; 82. Connecting plate; 83. Push rod; 420. Through hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0023] In this embodiment, "several" and "more than" refer to two or more. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of 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.

[0025] like Figures 1 to 5As shown, this embodiment provides an injection mold including an upper mold 1 and a lower mold 2. The lower mold 2 has a protrusion 21, and a molding cavity 3 is formed between the protrusion 21 and the upper mold 1. The molding cavity 3 is used to mold a product, and the feed port 11 on the upper mold 1 injects material into the molding cavity 3. Several sliders 4 are provided around the protrusion 21, and several arc-shaped sliders are evenly distributed around the protrusion. The sliders 4 are located outside the molding cavity 3 and can cooperate with the molding cavity to form the shape of the product. The sliders 4 are set on the inclined rod 5 so that the sliders 4 can slide relative to the inclined rod 5. A limiting component 6 is provided between adjacent sliders 4, and several sliders 4 are movably connected by the limiting component 6 to form a ring component 7. The limiting component 6 is connected to a driving component 8. The driving component 8 causes the sliders to move along the inclined rod 5. When the driving component 8 drives the sliders 4 to move towards the upper mold 1, the ring component 7 expands, and the sliders 4 move away from the protrusion 21. Through the above technical solution, the molding cavity 3 formed by the upper mold 1, lower mold 2, and slider 4 is used to mold the product 10. After molding, the product has a structure that fits into the slider 4 on the side. During demolding, the slider 4 is driven upward by the drive component 8, so that the slider 4 can move away from the protrusion 21 along the inclined rod 5, thereby separating the slider 4 from the product. By setting the limiting component 6, several sliders 4 can move synchronously, which can improve the demolding efficiency for ring-shaped products.

[0026] In this embodiment, the limiting component 6 includes a limiting block 61 and a locking member 62. The limiting block 61 is disposed within the limiting groove 41 of the adjacent slider 4. The limiting block 61 is flat, and its surface does not protrude from the limiting groove 41 after being disposed within it. The accommodating cavity formed by the limiting groove 41 of the adjacent slider is larger than the size of the limiting block 61, allowing the limiting block 61 to have room to move within the limiting groove. The locking member 62 passes through the limiting block 61 and is connected to the driving component 8. When the slider moves, the limiting block 61 moves relative to the slider within the limiting groove 41. The driving component 8 includes a driving rod 81, a connecting plate 82, and a push rod 83. Several driving rods 81 are arranged in parallel and connected to the connecting plate 82, which presses against the slider 4. A push rod 83 is provided in the middle of the connecting plate 82, and the push rod 83 is connected to the locking member 62. The drive rod 81 is connected to a power source such as a hydraulic cylinder or a pneumatic cylinder. In this embodiment, each connecting plate 82 is connected to two drive rods 81. The drive rods 81 push the connecting plate 82 to move, and the connecting plate 82 pushes the slider 4. By setting the connecting plate 82, the force is not too concentrated when the drive rods 81 directly drive the slider 4. The connecting plate 82 can distribute the pressure, thereby extending the service life of the slider 4. The top surface 42 of the slider 4 is a plane, and the limiting groove 41 is set on the top surface 42. The top surface 42 is opposite to the upper mold 1. The limiting block 61 is located in the limiting groove 41 and does not protrude from the top surface 42, which allows the slider 4 to fit more closely to the upper mold 1 during molding.

[0027] Furthermore, the slider 4 has a groove 42 on its side, and the grooves 42 of adjacent sliders 4 form through holes 420. The locking member 62 passes through the through holes 420 and is threadedly connected to the push rod 83. The locking member 62 enables adjacent sliders 4 to be limited and move relative to each other. In this embodiment, the locking member 62 is a bolt. This embodiment has four sliders, each slider 4 is arc-shaped, and the side 43 of the slider 4 is inclined. The side 43 is correspondingly set to the lower mold 2. The slider 4 has several mounting holes 44, and the inclined rods 5 pass through the mounting holes 44. The inclined rods 5 are inclined from bottom to top to the outside. Each slider 4 corresponds to two inclined rods 5, so that the slider 4 can move outward when it moves upward. The inner side of the slider 4 has a recessed part 46. The shape of the recessed part 46 corresponds to the shape of the product, thereby forming an outward protruding structure on the circumference of the product.

[0028] In this embodiment of the injection mold, during demolding, the upper and lower molds separate and open. The drive assembly drives the slider upward, and the slider pushes the product 10 upward to demold, while simultaneously moving outward to detach from the product. Through this embodiment, several sliders can move synchronously in the circumferential direction, realizing the forming of the external structure of the ring-shaped product without affecting demolding, effectively improving demolding efficiency.

[0029] The technical principles of this utility model have been described above in conjunction with specific embodiments. However, it should be noted that these descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, other specific embodiments or equivalent substitutions of this utility model that can be conceived by those skilled in the art without creative effort will all fall within the scope of protection of this utility model.

Claims

1. An injection mold, characterized in that, The device includes an upper mold and a lower mold. The lower mold has a protrusion, and there is a forming cavity between the protrusion and the upper mold. Several sliders are provided around the protrusion, and the sliders are located outside the forming cavity. The sliders are mounted on an inclined rod, and a limiting component is provided between adjacent sliders. Several sliders are movably connected to form a ring component through the limiting component. The limiting component is connected to a driving component. The driving component causes the sliders to move along the inclined rod. When the driving component drives the sliders to move towards the upper mold, the ring component expands, and the sliders move away from the protrusion.

2. The injection mold according to claim 1, characterized in that, The limiting component includes a limiting block and a locking member. The limiting block is disposed in the limiting groove of the adjacent slider, and the locking member passes through the limiting block and is connected to the driving component. When the slider moves, the limiting block moves relative to the slider in the limiting groove.

3. The injection mold according to claim 2, characterized in that, The drive assembly includes a drive rod, a connecting plate, and a push rod. Several drive rods are arranged in parallel and connected to the connecting plate. The connecting plate presses against the slider. A push rod is provided in the middle of the connecting plate and is connected to a locking component.

4. The injection mold according to claim 3, characterized in that, The slider has a groove on its side, and the grooves of adjacent sliders form a through hole. The locking member passes through the through hole and is threadedly connected to the push rod.

5. The injection mold according to claim 4, characterized in that, The top surface of the slider is flat, the limiting groove is set on the top surface, the slider is arc-shaped, the side surface of the slider is inclined, and the side surface is correspondingly set with the lower mold.

6. The injection mold according to claim 1, characterized in that, The slider is provided with several mounting holes, and the inclined rod passes through the mounting holes.

7. The injection mold according to claim 1, characterized in that, The inner side of the slider is provided with a recessed part, the shape of which corresponds to the shape of the product.

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