A core-pulling device for the slide block of a die-casting mold for automotive aluminum alloy fittings

Abstract

The present invention relates to the field of metal die-casting equipment, and particularly to a core-pulling device for a slider of a die-casting mold for automobile aluminum alloy fittings; it includes a base, the base is provided with a basic cavity for die-casting, one side of the basic cavity is communicated with the outside, the basic cavity is provided with a first pressing module and a second pressing module, the first pressing module is located above the second pressing module, the first pressing module is cooperatively connected with the second pressing module, a cavity is formed between the first pressing module and the second pressing module, the base is installed on a mounting seat, both the upper and lower sides of the mounting seat are provided with a mold closing drive assembly for making the first pressing module and the second pressing module cooperatively connected and separated, and the first pressing module and the second pressing module are closed or separated through the mold closing drive assembly; a core-pulling device is provided on the mounting seat; the present invention effectively reduces the damage to the alloy block and ensures the production quality of the alloy block; at the same time, by arranging basic cavities on both sides of the base and carrying out alloy die-casting simultaneously, the present invention effectively improves the alloy die-casting efficiency and ensures the alloy production efficiency.

Description

Technical Field

[0001] The present invention relates to the field of metal die-casting equipment, and particularly to a core-pulling device for a slider of a die-casting mold for automotive aluminum alloy fittings. Background Art

[0002] A die-casting mold is a tool for casting metal parts. The die-casting process mainly involves filling the mold cavity with molten metal. The mold has a movable cavity surface, which is pressure-forged during the cooling process of the molten metal, eliminating the shrinkage cavity and porosity defects of the blank and making the internal structure of the blank reach the broken grains in the forged state. Moreover, the die-casting process is widely used in the production of parts for various products.

[0003] In the prior art, most die-casting core-pulling is performed vertically between the upper mold and the lower mold. However, this core-pulling method is prone to damaging the mold and has a low core-pulling efficiency. Summary of the Invention

[0004] To solve the problems existing in the prior art, the present invention provides a core-pulling device for a slider of a die-casting mold for automotive aluminum alloy fittings.

[0005] The technical solution of the present invention is as follows:

[0006] The present invention provides a core-pulling device for a slider of a die-casting mold for automotive aluminum alloy fittings, including a base. The base is provided with a die-casting cavity. One side of the cavity is connected to the outside. Inside the cavity, there are a first pressing module and a second pressing module. The first pressing module is located above the second pressing module. The first pressing module is connected to the second pressing module in a cooperative manner. A cavity is formed between the first pressing module and the second pressing module. The base is installed on a mounting seat. On both the upper and lower sides of the mounting seat, there are mold-closing driving components for making the first pressing module and the second pressing module cooperate and separate. Through the mold-closing driving components, the first pressing module and the second pressing module are closed or separated. A core-pulling device is provided on the mounting seat. The core-pulling device is located on one side of the base. The core-pulling device and the base as a whole are in sliding cooperation with the mounting seat. On the outside of the mounting seat, there is a driving locking structure for making the core-pulling device and the base as a whole rotate relative to the mounting seat simultaneously.

[0007] Furthermore, vertically through holes are respectively provided inside the base corresponding to one side of the first pressing module and the second pressing module. Inside each through hole, there is a vertically moving rod. The outer ends of the moving rods are all located outside the corresponding through holes. On the outer periphery of the middle part of each moving rod, a collar is fixedly sleeved. The outer periphery of each collar is connected to the corresponding through hole through a vertical movement limiting component. Through the movement limiting component, only vertical movement occurs between the moving rod and the corresponding through hole. The collar and the inner wall of the corresponding through hole are connected by a spring.

[0008] Further, the mounting base is a circular guide rail, and both the upper and lower sides of the mounting base are supported and connected by connecting rods; four C-shaped sliders are sleeved outside the mounting base, and the sliders are evenly distributed along the circumference of the mounting base. The upper and lower sides of the base are respectively connected to two sliders on the corresponding side, and a core-pulling device is installed on one side of a slider located on one side of the base.

[0009] Further, base cavities, corresponding first pressing modules, and second pressing modules are arranged on both the front and rear sides of the base. Core-pulling devices are installed on the sliders on both the left and right sides of the base, and the core-pulling devices of the two sliders are located on the front and rear sides respectively.

[0010] Furthermore, the driving and locking device includes a toothed ring. The same toothed ring is installed outside all the sliders. A driving motor is installed on one side of the mounting base through a bracket. A gear is fixedly installed at the outer end of the output shaft of the driving motor, and the gear meshes with the toothed ring.

[0011] Furthermore, the core-pulling device includes a robotic arm installed on one side of the slider, and electric suction cups are fixedly installed at the lower parts of the free ends of the robotic arms through electric telescopic rods.

[0012] Furthermore, the mold-closing driving assembly includes hydraulic rods. Hydraulic rods with movable ends facing the base are installed on both the front and rear sides of the connecting rod. The hydraulic rods are all located outside the corresponding moving rods. Electromagnets are fixedly installed at the movable ends of the hydraulic rods, and iron blocks are fixedly installed at the outer ends of the moving rods.

[0013] The beneficial effects achieved by the present invention are as follows:

[0014] Through the cooperation of the first pressing module and the second pressing module, the present invention does not need to distinguish between the upper module and the lower module. The positions of the first pressing module and the second pressing module are exchanged by the rotation of the slider. The moving rod is driven to move by the hydraulic rod, and under the action of the through holes communicating with the outside, and the core is pulled from the side by the electric suction cup, so that the alloy block is smoothly demolded, effectively reducing the damage to the alloy block and ensuring the production quality of the alloy block; at the same time, by arranging base cavities on both sides of the base, the present invention simultaneously performs alloy die casting, effectively improving the alloy die casting efficiency and ensuring the alloy production efficiency. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 is Figure 1 the enlarged view of the A-direction view in

[0017] Figure 3 is Figure 1 the enlarged view of the partial view Ⅰ in

[0018] Figure 4 is the usage state diagram of the present invention. Detailed implementation manners

[0019] To facilitate the understanding of those skilled in the art of the present invention, the following describes the detailed implementation manners of the present invention with reference to the accompanying drawings.

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0021] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] It should be noted that when a component is referred to as being "mounted on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component at the same time.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0024] Such as Figures 1 to 3As shown in the figure, the present invention provides a core-pulling device for a die-casting mold of an automotive aluminum alloy fitting, which includes a base 1. The base 1 is provided with a base cavity 2 for die-casting. One side of the base cavity 2 is connected to the outside. A first pressing module 3 and a second pressing module 4 are arranged in the base cavity 2. The first pressing module 3 is located above the second pressing module 4, and the first pressing module 3 is connected and cooperated with the second pressing module 4. A cavity is formed between the first pressing module 3 and the second pressing module 4. The base 1 is installed on a mounting seat 5. Both the upper and lower sides of the mounting seat 5 are provided with a mold-closing driving assembly for making the first pressing module 3 and the second pressing module 4 cooperate, connect and separate. In this way, through the mold-closing driving assembly, the first pressing module 3 and the second pressing module 4 approach each other and are combined into a cavity to perform alloy die-casting. At the same time, after die-casting is completed, the first pressing module 3 and the second pressing module 4 are separated through the mold-closing driving assembly.

[0025] A core-pulling device is arranged on the mounting seat 5. The core-pulling device is located on one side of the base 1, and both the core-pulling device and the base 1 are in sliding fit with the mounting seat 5. A driving and locking structure for making the core-pulling device and the base 1 rotate relative to the mounting seat 5 simultaneously is arranged outside the mounting seat 5. In this way, after alloy die-casting is completed, the first pressing module 3 on the upper side moves upward and separates from the second pressing module 4 under the action of the mold-closing driving assembly. Then the core-pulling device moves to the top surface of the die-cast alloy block and cooperates with it. Then, through the driving and locking assembly, both the base 1 and the core-pulling device rotate 180 degrees relative to the mounting seat 5, so that the core-pulling device can receive the alloy block from below the alloy. Then, through the mold-closing driving assembly, the second pressing module 4 moves upward, so that the second pressing module 4 is separated from the alloy block. Then, the alloy block is pulled out of the base 1 through the core-pulling device. At the same time, when the base 1 and the core-pulling device do not rotate relative to each other, the driving and locking assembly locks the positions of the base 1 and the core-pulling device to prevent them from rotating relative to the mounting seat 5.

[0026] As Figure 1 , 2 shown in the figure, the mounting seat 5 is a circular guide rail, and both the upper and lower sides of the mounting seat 5 are supported and connected through connecting rods 6. Four C-shaped sliders 7 are sleeved outside the mounting seat 5. The sliders 7 are evenly distributed along the circumference of the mounting seat 5. Both the upper and lower sides of the base 1 are respectively connected to two sliders 7 on the corresponding side. In this way, through the movement of the sliders 7 relative to the mounting seat 5, the movement of the C-shaped sliders 7 will not conflict with the connecting rods 6. A core-pulling device is installed on one side of a slider 7 located on one side of the base 1.

[0027] In order to drive all the sliders 7 to move relative to the mounting base 5 simultaneously, in one embodiment of the driving and locking device, a same ring gear 8 is installed outside all the sliders 7. At the same time, a driving motor 9 is installed on one side of the mounting base 5 through a bracket. A gear 10 is fixedly installed at the outer end of the output shaft of the driving motor 9. The gear 10 meshes with the ring gear 8. In this way, all the sliders 7 can be driven to rotate simultaneously by driving the ring gear 8 to rotate through the driving motor 9. When the driving motor 9 does not work, the meshing of the gear 10 and the ring gear 8 locks the movement of the sliders 7.

[0028] As Figure 1 、 3 shown, in order to ensure the mold closing and separation of the first pressing module 3 and the second pressing module 4, vertical through holes 11 are provided inside the base 1 corresponding to one side of the first pressing module 3 and the second pressing module 4. Vertical moving rods 12 are provided in the through holes 11. The outer ends of the moving rods 12 are all located outside the corresponding through holes 11. Sleeve rings 13 are fixedly sleeved on the outer peripheries of the middle parts of the moving rods 12. The outer peripheries of the sleeve rings 13 are connected to the through holes 11 through vertical moving limit components. The moving limit components enable only vertical movement between the moving rods 12 and the corresponding through holes 11. The sleeve rings 13 are connected to the inner walls of the corresponding through holes 11 through springs 14. And in the initial state, the first pressing module 3 and the second pressing module 4 are in a separated state. At this time, the springs 14 are in a normal stretched state. When the first pressing module 3 and the second pressing module 4 are closed, the springs 14 are all in a compressed state. Such a design is to facilitate the reset of both the first pressing module 3 and the second pressing module 4 through the springs 14.

[0029] As Figure 1 、 2 shown, in order to improve the die-casting efficiency, base cavities 2 are provided on both the front and rear sides of the base 1, as well as the corresponding first pressing module 3 and second pressing module 4. In this way, die-casting of two sets of alloys can be carried out simultaneously. And core-pulling devices are installed on the sliders 7 on both the left and right sides of the base 1. And the core-pulling devices of the two sliders 7 are located on the front and rear sides respectively.

[0030] As Figure 1 、 2 、4 shown, the core-pulling device includes a robotic arm 15 installed on one side of the slider 7. Electric suction cups 17 are fixedly installed at the lower parts of the free ends of the robotic arms 15 through electric telescopic rods 16. In this way, the corresponding electric suction cups 17 are driven by the robotic arms 15 to rotate to the top surface of the alloy block separated from the first pressing module 3. Then, by extending the electric telescopic rods 16, the electric suction cups 17 adsorb the top surface of the alloy block. In the process of the base 1 rotating 180 degrees, the electric suction cups 17 keep adsorbing the alloy block. And by the electric suction cups 17 keeping the support of the alloy block, it can be ensured that the electric suction cups 17 pull the alloy block away from the second pressing module 4 and transfer it to the next process.

[0031] AsFigure 1 , 2 As shown in Figures 3 and 4, an implementation of the die clamping drive assembly is that hydraulic rods 18 with the movable ends facing the base 1 are installed on both the front and rear sides of the connecting rod 6. The hydraulic rods 18 are all located outside the corresponding moving rods 12, and the movable ends of the hydraulic rods 18 are fixedly installed with electromagnets 19. The outer ends of the moving rods 12 are fixedly installed with iron blocks 20. During the process of separating the first pressing module 3, the fourth pressing module 4 from the alloy block, by contracting the hydraulic rods 18 and energizing the electromagnets 19, the iron blocks 20 at the outer ends of the moving rods 12 are adsorbed by the electromagnets 19, so that the hydraulic rods 18 pull the moving rods 12 to move outward along the corresponding through holes 11, thereby separating the first pressing module 3, the second pressing module 4 from the corresponding alloy block, and thus performing core pulling treatment.

[0032] Working principle: In the initial state, the first pressing module 3 and the second pressing module 4 are in a separated state. During alloy die casting, the hydraulic rods 18 are extended to push the corresponding moving rods 12 to move toward the middle side of the base 1, so that the first pressing module 3 and the fourth pressing module 4 are clamped. Then, alloy liquid is injected into the cavity (the supply of alloy liquid is prior art and not shown or described here). After the alloy liquid cools and forms, while the hydraulic rods 18 above the first pressing module 3 contract and the electromagnets 19 are energized, the electromagnets 19 adsorb the moving rods 12 above the first pressing module 3. During the contraction of the hydraulic rods 18, the first pressing module 3 as a whole is pulled upward to separate from the alloy block. Then, the robotic arm 15 outside the base cavity 2 is used to move its electric suction cup 17 above the top surface of the alloy block, and the alloy top surface is adsorbed through the cooperation of the electric telescopic rod 16 and the electric suction cup 17. Then, the drive motor 9 drives the gear ring 8 to rotate 180 degrees, so that the first pressing module 4 moves above the alloy block, and the robotic arm 15 also rotates 180 degrees. The electric suction cup 17 moves below the alloy block to support the alloy block. Then, by contracting the hydraulic rods 18, the second pressing module 4 is separated from the alloy block, and the alloy block is completely removed through the cooperation of the electric suction cup 17 and the robotic arm 15.

[0033] The above-described embodiments of the present invention do not constitute a limitation to the protection scope of the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A core pulling device for a slider of a die-casting mold for an automotive aluminum alloy accessory, comprising a base, the base is provided with a die-casting base cavity, one side of the base cavity is connected to the outside, a first pressing module and a second pressing module are provided in the base cavity, the first pressing module is located above the second pressing module, the first pressing module and the second pressing module are connected in cooperation, a cavity is formed between the first pressing module and the second pressing module, the base is installed on a mounting seat, both upper and lower sides of the mounting seat are provided with a clamping drive assembly that enables the first pressing module and the second pressing module to be connected and separated in cooperation, the first pressing module and the second pressing module are clamped or separated by the clamping drive assembly; a core pulling device is provided on the mounting seat, the core pulling device is located on one side of the base, the core pulling device and the base as a whole are kept in sliding cooperation with the mounting seat, and a driving locking structure that enables the core pulling device and the base as a whole to rotate relative to the mounting seat at the same time is provided on the outer side of the mounting seat; the base is provided with vertical through holes on one side corresponding to the first pressing module and the second pressing module, and vertical moving rods are provided in the through holes, and the outer ends of the moving rods are located at the corresponding through holes On the outside of the hole, a sleeve ring is fixedly mounted on the outer periphery of the middle part of the moving rod, and the outer periphery of the sleeve ring is connected to the through hole through a vertical moving limit assembly, through which the moving limit assembly allows only vertical movement between the moving rod and the corresponding through hole, and the sleeve ring is connected to the corresponding inner wall of the through hole through a spring; the mounting seat is a circular guide rail, and the upper and lower sides of the mounting seat are supported and connected by connecting rods; four C-shaped sliders are sleeved on the outer side of the mounting seat, and the sliders are evenly distributed along the circumference of the mounting seat, and the upper and lower sides of the base are respectively connected to the two sliders on the corresponding sides, and a core pulling device is installed on one side of a slider located on one side of the base; the mold closing drive assembly includes a hydraulic rod, and hydraulic rods with movable ends facing the base are installed on the front and rear sides of the connecting rod, and the hydraulic rods are located on the outside of the corresponding moving rods, and the movable ends of the hydraulic rods are fixedly installed with electromagnets, and the outer ends of the moving rods are fixedly installed with iron blocks; the core pulling device includes a mechanical arm installed on one side of the slider, and the lower part of the free end of the mechanical arm is fixedly installed with an electric suction cup through an electric telescopic rod.

2. The core-pulling device for a slider of a die-casting die for automotive aluminum alloy parts according to claim 1, characterized in that: The base is provided with base cavities, corresponding first pressing modules and second pressing modules on both the front and rear sides, and core pulling devices are installed on the sliders on the left and right sides of the base. The core pulling devices of the two sliders are respectively located on the front and rear sides.

3. The core-pulling device for a slider of a die-casting die for automotive aluminum alloy parts according to claim 1, characterized in that: The driving locking structure comprises a gear ring, and the same gear ring is installed on the outer side of all sliders. A driving motor is installed on one side of the mounting seat through a bracket. A gear is fixedly installed on the outer end of the output shaft of the driving motor, and the gear meshes with the gear ring.

Images