Sliding block hook core-pulling structure

Abstract

The utility model belongs to the technical field of slider core pulling, and particularly relates to a slider hook core pulling structure which comprises an upper mold frame, a lower mold frame movably mounted below the upper mold frame, a core pulling mechanism movably mounted between the upper mold frame and the lower mold frame, and a demolding mechanism fixedly mounted at the top of the upper mold frame. The sliding block hook core-pulling structure comprises a demolding mechanism and a hook core-pulling mechanism, the demolding mechanism comprises a guide block, a mounting groove is formed in the guide block, a hydraulic cylinder is fixedly mounted above the guide block, a hydraulic rod of the hydraulic cylinder is fixedly mounted through the mounting groove, and a mold core is arranged below the guide block. When a product is subjected to demolding treatment, a vertical core pulling mode is often adopted, but when the inner wall of the product has bending amplitude, the shape of the product can be changed by vertical core pulling. Therefore, on the basis of original sliding block core pulling, the arc-shaped guide rail is designed, the sliding block insert is matched with the arc-shaped guide rail to complete demolding, and the shape of a product cannot be changed.

Description

TECHNICAL FIELD

[0001] The utility model relates to slider core-pulling technology field, concretely is a slider hook core-pulling structure. BACKGROUND

[0002] The slider core-pulling mechanism is an important component in injection mould, which allows the mould to form complex internal geometric shapes, such as holes, grooves, etc., under closed condition. These shapes cannot be directly formed during the injection process. The design and optimization of the slider core-pulling mechanism are crucial for improving the performance, production efficiency and product quality of the mould.

[0003] In injection mould design, the slider side core-pulling mechanism (also known as slider mechanism or positioning mechanism) is a common method to solve the difficulty of product demoulding. This mechanism sets up a slider on the side of the mould, which is pushed back by inclined guide pillars or other mechanical elements during mould closing, thereby forming the internal space of the product. During mould opening, the slider moves forward, allowing the product to be demoulded smoothly.

[0004] According to the patent network slider side core-pulling mechanism (authorized disclosure number: CN207273769U), it is described that "the utility model discloses a slider side core-pulling mechanism, including fixed mould plate, the fixed mould plate is equipped with the accommodation cavity, the accommodation cavity is equipped with the side core-pulling slider that can slide, the fixed mould plate is equipped with the drive mechanism, the drive mechanism includes the oil cylinder and fixed support, the fixed support can be detachably connected on the fixed mould plate, the oil cylinder is arranged on the fixed support, the side core-pulling slider is equipped with the connecting plate, the both ends of connecting plate are connected with the side core-pulling slider respectively, the piston rod of oil cylinder is connected with the connecting plate. The slider side core-pulling mechanism disclosed by the utility model, the side slider core-pulling process is stable, and will not cause the slider to be inclined and stuck."

[0005] For the above related technology, the present inventor believes that there is a problem of complex structure. When performing core-pulling operation on a product with a certain arc, a vertical core-pulling method is adopted, which changes the shape of the product. Therefore, it is urgent to improve a slider hook core-pulling structure to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a slider hook core-pulling structure to solve the problem of complex structure and change of product shape in the above background technology.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a slider hook core-pulling structure, including upper mould frame, the lower mould frame is movably installed below the upper mould frame, the core-pulling mechanism is movably installed between the upper mould frame and the lower mould frame, the demoulding mechanism is fixedly installed on the top of the upper mould frame, the slider hook core-pulling structure includes the demoulding mechanism and the hook core-pulling mechanism.

[0008] Preferably, the demolding mechanism comprises a guide block, a mounting groove is arranged on the guide block, a hydraulic cylinder is fixedly installed above the guide block, a hydraulic rod of the hydraulic cylinder is fixedly installed through the mounting groove, and a mold core is arranged below the guide block.

[0009] Preferably, a connecting block is arranged below the guide block, and the guide block is fixedly connected with the mold core through the connecting block.

[0010] Preferably, the core pulling mechanism comprises a slider insert one, two connecting shafts are arranged at two ends of the slider insert one respectively, an arc-shaped guide rail is fixedly installed on the slider insert one, the slider insert one passes through the arc-shaped guide rail, a slider insert two is movably installed above the arc-shaped guide rail, and mounting holes are arranged at two ends of the slider insert two. The shape of the arc-shaped guide rail is designed along the path of the core-pulling cavity in the mold core.

[0011] Preferably, the connecting shaft two is movably installed in the mounting hole close to the middle part of the slider insert two, the mounting hole on the outer side of the slider insert two is movably connected with a slider insert, the slider insert moves on the arc-shaped guide rail, a core is arranged at the front end of the slider insert, and the core is movably installed in the mold core.

[0012] Preferably, the other end of the slider insert one is fixedly installed below an insert fixing plate, the insert fixing plate is fixedly installed on a slider, an inclined through hole is arranged in the middle of the slider, an inclined guide column is movably installed in the inclined through hole, a shovel is movably installed on the left side of the slider, pressing strips are fixedly installed on both sides of the slider, the pressing strips are fixedly installed on guide blocks, a limiting block is fixedly installed on the left side of the guide block, and the shovel and the limiting block both pass through a jacking rod. A spring is movably installed on the jacking rod. The spring protects the jacking rod from being collided due to other factors.

[0013] Preferably, a notch is arranged at the middle position of the guide block, the notch is much larger than the diameter of the inclined guide column, and a limiting plate is arranged between the guide block and the slider. When the inclined guide column moves in the notch, the guide block does not interfere with the inclined guide column.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The slider hook core pulling structure is simple in structure and safe in action, can easily complete the core pulling operation, has the advantages of compact structure and small occupied space.

[0016] 2. The slider hook core-pulling structure, through the design of the arc-shaped guide rail, the slider insert can be moved against the arc-shaped guide rail, the core is pulled out without changing the shape, and the product with the bending amplitude of the inner wall is suitable. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the overall appearance structure of the utility model;

[0018] Figure 2 It is a schematic view of the demolding mechanism of the utility model;

[0019] Figure 3 It is a schematic view of the core-pulling mechanism structure of the utility model;

[0020] Figure 4 It is a schematic view of the core-pulling mechanism installation of the utility model;

[0021] Figure 5 It is a sectional view of the core-pulling mechanism of the utility model.

[0022] In the figure: 1 upper die holder, 2 core-pulling mechanism, 3 demolding mechanism, 4 lower die holder, 201 guide block, 202 hydraulic cylinder, 203 hydraulic rod, 204 mounting groove, 205 die insert, 301 slider insert one, 302 connecting shaft, 303 mounting hole, 304 slider insert two, 305 arc-shaped guide rail, 306 slider insert, 307 connecting block, 308 core, 309 connecting shaft two, 310 insert fixing plate, 311 inclined guide column, 312 slider, 313 shovel, 314 spring, 315 limiting block, 316 pressing strip, 317 guide block, 318 notch, 319 limiting plate, 320 ejector rod. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Embodiment one:

[0025] Please refer to Figures 1-2 The utility model provides a technical scheme: a slider hook core-pulling structure, including upper die holder 1, the lower die holder 4 is movably installed below upper die holder 1, the core-pulling mechanism 2 is movably installed between upper die holder 1 and lower die holder 4, the demolding mechanism 3 is fixedly installed on the top of upper die holder 1, and the slider hook core-pulling structure includes the demolding mechanism and the hook core-pulling mechanism.

[0026] The demolding mechanism comprises a guide block 201, the guide block 201 is provided with a mounting groove 204, the upper portion of the guide block 201 is fixedly provided with a hydraulic cylinder 202, the hydraulic rod 203 of the hydraulic cylinder 202 is fixedly installed through the mounting groove 204, and the lower portion of the guide block 201 is provided with a mold core 205.

[0027] When the core-pulling operation is completed, the hydraulic cylinder 202 is started, the guide block 201 is driven to move upwards through the hydraulic rod 203, the connecting block 307 is driven to move upwards, the mold 205 is driven to move upwards through the connecting block 307, and the demolding process is completed.

[0028] Embodiment two:

[0029] Please refer to Figures 3-5 The utility model provides a kind of slider hook core-pulling structure, and the core-pulling mechanism comprises slider insert one 301, and the both ends of slider insert one 301 are provided with connecting shaft 302 and connecting shaft two 309 respectively, connecting shaft 302 is provided with two, and slider insert one 301 is fixedly installed with circular arc guide rail 305, slider insert one 301 passes through circular arc guide rail 305, and circular arc guide rail 305 is movably installed with slider insert two 304 above, and the both ends of slider insert two 304 are provided with mounting hole 303.

[0030] Connecting shaft two 309 is movably installed in the mounting hole 303 of the middle part of slider insert two 304, the mounting hole 303 of the outside of slider insert two 304 is movably connected with slider insert 306, slider insert 306 is moved on circular arc guide rail 305, and the front end of slider insert 306 is provided with core 308, and core 308 is movably installed in mold core 205.

[0031] The other end of slider insert one 301 is fixedly installed below insert fixed plate 310, insert fixed plate 310 is fixedly installed on slider 312, the inclined through hole is provided in the middle of slider 312, inclined guide column 311 is movably installed in the inclined through hole, shovel 313 is movably installed on the left side of slider 312, pressing strip 316 is fixedly installed on the both sides of slider 312, pressing strip 316 is fixedly installed on guide block 317, limit block 315 is fixedly installed on the left side of guide block 317, shovel 313 and limit block 315 all pass through jacking rod 320, and spring 314 is movably installed on jacking rod 320.

[0032] The middle position of guide block 317 is provided with notch 318, and notch 318 is much larger than the diameter of inclined guide column 311, and limit plate 319 is arranged between guide block 317 and slider 312.

[0033] When the injection molding is completed, the inclined guide post 311 is moved towards the direction of the mold core 205. Since the inclined guide post 311 is abutted in the notch 318 in the guide block 317, when the inclined guide post 311 is moved towards the mold core 205, the slide block 312 is moved to the left side under the action of the inclined guide post 311 since the guide block 317 is fixed. The shovel 313 functions to limit the backward displacement of the slide block. When the shovel 313 continues to move backwards, it will abut against the limiting block 315 which is fixed on the guide block 317, thereby preventing the inclined guide post 311 from further moving. The slide block insert one 301 which is fixed on the insert fixing plate 310 moves towards the direction opposite to the mold core 205, and drives the slide block insert 306 to move upwards along the arc-shaped guide rail 305 (the shape of the arc-shaped guide rail 305 is designed along the direction of the mold core 205) under the action of the slide block insert one 301, thereby driving the core 308 which is fixed on the slide block insert 306 to move, and extracting the core 308 from the mold core 205. The core extraction operation is completed.

[0034] It is to be noted that the relative terms such as first and second, and the like are used herein only to distinguish one entity or action from another, and do not necessarily require or imply that these entities or actions exist in any such actual relationship or order. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the statement "comprising a means" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

Claims

1. A slider hook core-pulling structure comprising an upper die frame (1), characterized in that: The lower movable installation of the upper die frame (1) is provided with a lower die frame (4), the movable installation of the upper die frame (1) and the lower die frame (4) is provided with a core pulling mechanism (2), the top of the upper die frame (1) is fixedly provided with a demolding mechanism (3), the slider hook core pulling structure comprises a demolding mechanism and a hook core pulling mechanism.

2. The slider hook core structure of claim 1, wherein: The demolding mechanism comprises a guide block (201), the guide block (201) is provided with a mounting groove (204), the upper side of the guide block (201) is fixedly provided with a hydraulic cylinder (202), the hydraulic rod (203) of the hydraulic cylinder (202) is fixedly installed through the mounting groove (204), and the lower side of the guide block (201) is provided with a die core (205).

3. A slider hook core structure according to claim 2, wherein: The lower side of the guide block (201) is provided with a connecting block (307), and the guide block (201) and the die core (205) are fixedly connected through the connecting block (307).

4. The slider hook core structure of claim 1, wherein: The core pulling mechanism comprises a slider insert one (301), the two ends of the slider insert one (301) are respectively provided with a connecting shaft (302) and a connecting shaft two (309), the connecting shaft (302) is provided with two, the slider insert one (301) is fixedly provided with an arc-shaped guide rail (305), the slider insert one (301) passes through the arc-shaped guide rail (305), the upper side of the arc-shaped guide rail (305) is movably provided with a slider insert two (304), and the two ends of the slider insert two (304) are respectively provided with mounting holes (303).

5. A slider hook core structure according to claim 4, wherein: The connecting shaft two (309) is movably installed in the mounting hole (303) close to the middle part of the slider insert two (304), the mounting hole (303) on the outer side of the slider insert two (304) is movably connected with a slider insert (306), the slider insert (306) moves against the arc-shaped guide rail (305), and the front end of the slider insert (306) is provided with a core (308) which is movably installed in the die core (205).

6. The slider hook core structure of claim 4, wherein: The other end of the slider insert one (301) is fixedly installed below an insert fixing plate (310), the insert fixing plate (310) is fixedly installed on a slider (312), the middle of the slider (312) is provided with an inclined through hole, the inclined through hole is movably provided with an inclined guide column (311), the left side of the slider (312) is movably provided with a shovel (313), the two sides of the slider (312) are fixedly provided with a pressing strip (316), the pressing strip (316) is fixedly installed on a guide block (317), the left side of the guide block (317) is fixedly provided with a limiting block (315), and the shovel (313) and the limiting block (315) all pass through a jacking rod (320), and the jacking rod (320) is movably provided with a spring (314).

7. A slider hook core structure according to claim 6, wherein: The middle position of the guide block (317) is provided with a notch (318), the notch (318) is much larger than the diameter of the inclined guide column (311), and the guide block (317) and the slider (312) are provided with a limiting plate (319).

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