Anti-deformation demolding mechanism based on reflective mirror base
By designing an anti-deformation and demolding mechanism based on the mirror base, the pre-pressure state of the top rod assembly and the spring keeping the mirror base fixed, the problem of easy deformation during demolding in small and medium-sized high-pressure die-casting molds is solved, and the integrity of the product and the reduction of production costs are achieved.
Patent Information
- Application Number
- CN202421876565.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-05
AI Technical Summary
In small and medium-sized high-pressure die-casting molds, the interaction force (mold clamping force) formed between the aluminum alloy solution during solidification process and the mold slider, etc., causes the product to stick to it, which easily causes product deformation and damage during demolding, especially the mirror base is easily deformed when the slider is pulled open.
An anti-deformation and mold release mechanism based on the reflector base is designed, which is opposite to the reflector base through the top rod assembly, and the pre-pressure state of the spring and the fixing block is used to keep the reflector base fixed in the lower mold, reducing the clamping force on the reflector base when the slider assembly is pulled out.
It effectively avoids deformation of the mirror base during the demolding process, ensures product integrity and quality, and reduces mold maintenance and production costs.
Smart Images
Figure CN222970957U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molding of automobile parts, in particular to an anti-deformation demolding mechanism based on a rearview mirror base. Background Art
[0002] Medium and small-sized high-pressure die-casting molds play a major role in the automated mass production of products. Among them, high-pressure die-casting products based on aluminum alloy solutions are widely used. However, due to the small size of medium and small-sized die-casting molds, during the die-casting process of their products, since the aluminum alloy solution forms an interaction force, i.e., the mold clamping force, with the punch such as the mold core slider during the solidification process from high temperature to low temperature, the product adheres to the mold core or slider. The product requires a sufficient demolding slope for the part to be smoothly demolded. During the demolding process of the product, due to the large clamping force, the product may even be deformed and damaged by pulling. During the production process of the rearview mirror base die-casting mold, since the aluminum alloy solution generates an interaction force with the slider after solidification, when the slider is pulled out, the rearview mirror base is easily deformed. Summary of the Invention
[0003] By providing an anti-deformation demolding mechanism based on a rearview mirror base, the embodiment of the present application makes the ejector rod assembly remain stationary while the spring abuts against the fixed block to drive the ejector rod to abut against the rearview mirror base through the engagement of the hook and the buckle groove. When the slider base moves, due to the presence of the ejector rod, the rearview mirror base is fixed in the lower mold, reducing the clamping force of the slider base on the rearview mirror base when the slider assembly is pulled and moved, and avoiding the deformation of the rearview mirror base to the greatest extent.
[0004] To achieve the above object, the utility model provides the following technical solution: an anti-deformation demolding mechanism based on a rearview mirror base, the demolding mechanism includes an ejector rod assembly, a slider assembly, and a hydraulic assembly. The hydraulic assembly is connected to one side of the slider assembly and drives the slider assembly to slide. The slider assembly includes a slider base and a mounting plate. The ejector rod assembly is obliquely arranged inside the slider base. The ejector rod assembly includes a spring, a fixed block, a plurality of ejector rods, and hooks. The hooks are arranged at both ends of the spring and one side of the hook is connected to one side of the fixed block. There are two mounting plates arranged at one end of the hook. An installation groove is arranged between the two mounting plates. A buckle groove is arranged on the side wall of the installation groove. The other side of the hook is engaged with the buckle groove, so that one side of the spring abuts against the slider base, one side of the ejector rod is connected to one side of the fixed block, and the other side of the spring abuts against the other side of the fixed block to drive the other side of the ejector rod to abut against the rearview mirror base.
[0005] Compared with the prior art, the advantages of the utility model are as follows:
[0006] For the die-casting mold of the rearview mirror base, due to the special position of its slider base (oblique core-pulling in the 45° direction towards the fixed mold), the ejector rod assembly is inclined. After the mold of the rearview mirror base is opened, it is more convenient for the ejector rod assembly to fix the rearview mirror base. When the hydraulic component retracts to one side and the slider base moves accordingly, one side of the hook is connected to one side of the fixed block and the other side of the hook is engaged with the buckle groove, keeping the fixed block stationary. Then the spring changes from the original compressed state to the pre-compressed state and drives the other side of the ejector rod to abut against the rearview mirror base. Thus, the rearview mirror base is subjected to the force of the ejector rod assembly, causing the rearview mirror base to always remain in the lower mold and the rearview mirror base to be disengaged from the slider assembly. This can reduce the clamping force of the slider base on the rearview mirror base when the slider base is withdrawn, and avoid deformation of the rearview mirror base to the greatest extent.
[0007] As an improvement, the slider assembly further includes an inclined push rod and a first slider. The hydraulic component includes a push rod and a hydraulic cylinder. One side of the push rod is connected to one side of the first slider, and the hydraulic cylinder is connected to the other side of the push rod and drives the push rod to push the first slider. The slider base is inclined with a first guide groove. The lower end of the inclined push rod passes through the first guide groove and is connected to the other side of the first slider. The side wall of the installation groove is also provided with a second guide groove, which is inclined and the setting direction intersects with the setting direction of the first guide groove. Both ends of the slider base are provided with first guide blocks corresponding to the second guide groove, and the side wall of the first guide block abuts against the side wall of the second guide groove. By driving the push rod to retract through the hydraulic cylinder, since one side of the push rod is connected to one side of the first slider, the first slider is driven to slide. The other side of the first slider is connected to the lower end of the inclined push rod, and the lower end of the inclined push rod is matched with the first guide groove. Under the guidance of the first guide groove, while the inclined push rod moves obliquely downward relative to the slider base, it drives the slider base to move obliquely upward relative to the mounting plate. And due to the special position of its slider base, by inclinedly arranging the inclined push rod, compared with directly horizontally pulling the slider base by the push rod, the volume of the slider assembly is reduced, and the phenomenon of resource waste such as increasing the tonnage of the die-casting machine, affecting the die-casting production cost, and increasing the energy consumption caused by the influence of the inclined core-pulling design of the slider on the installation is avoided.
[0008] As an improvement, both ends of the slider base are provided with third guide grooves, which are arranged parallel to the second guide grooves. One end of each of the two hooks is embedded in the third guide grooves. Both ends of the fixed block are provided with second guide blocks, which are matched with the third guide grooves. When the slider base moves obliquely upward along with the hydraulic component, on the basis of the cooperation between the second guide groove and the first guide block, due to the cooperation between the second guide block and the third guide groove, it further plays a guiding role in the movement of the slider base.
[0009] As an improvement, third guide blocks are provided on both sides of the first slider, and fourth guide grooves are also provided on the side walls of the installation groove. The direction of the fourth guide groove is the same as the moving direction of the push rod. The side wall of the third guide block abuts against the side wall of the fourth guide groove. Since the direction of the third guide groove is the same as the moving direction of the push rod and the side wall of the third guide block abuts against the side wall of the fourth guide groove, it plays a guiding role in the moving directions of the inclined push rod and the first slider. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments:
[0011] Figure 1 FIG. is a schematic structural diagram of an anti-deformation demolding mechanism based on a mirror base;
[0012] Figure 2 FIG. is a schematic structural diagram of the interior of the installation groove;
[0013] Figure 3 FIG. is a schematic structural diagram of the interior of the installation groove after removing the slider base, slider core and lower mold;
[0014] Figure 4 FIG. is a schematic structural diagram of the cooperation between the third guide groove, the second guide block and the hook;
[0015] Figure 5 FIG. is a schematic structural diagram of the cooperation between the second guide groove and the first guide block, and the fourth guide groove and the third guide block;
[0016] Figure 6 FIG. is a schematic structural diagram of the inner wall of the mounting plate.
[0017] The markings in the above figures are respectively: 1, demolding mechanism; 1.1, ejector rod assembly; 1.1.1, spring; 1.1.2, fixed block; 1.1.2.1, first guide block; 1.1.3, ejector rod; 1.1.4, hook; 1.2, slider assembly; 1.2.1, slider base; 1.2.1.1, first guide groove; 1.2.1.2, first guide block; 1.2.1.3, third guide groove; 1.2.2, mounting plate; 1.2.3, installation groove; 1.2.3.1, buckling groove; 1.2.3.2, second guide groove; 1.2.3.3, fourth guide groove; 1.2.4, inclined push rod; 1.2.5, first slider; 1.2.5.1, third guide block; 1.3, hydraulic assembly; 1.3.1, push rod; 1.3.2, hydraulic cylinder; 2, mirror base; 3, lower mold. SPECIFIC EMBODIMENTS
[0018] In the present utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial direction", "plane direction", "circumferential direction", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model.
[0019] As Figure 1 shown, the demolding mechanism 1 includes a ejector rod assembly 1.1, a slider assembly 1.2, and a hydraulic assembly 1.3. The hydraulic assembly 1.3 is connected to one side of the slider assembly 1.2 and drives the slider assembly 1.2 to slide. The ejector rod assembly 1.1 is inclined and arranged inside the slider assembly 1.2. One side of the ejector rod assembly 1.1 abuts against the mirror base 2. Preferably, the inclination angle of the ejector rod assembly 1.1 is 40°.
[0020] As Figures 2 to 4 shown, the ejector rod assembly 1.1 includes a spring 1.1.1, a fixed block 1.1.2, a plurality of ejector rods 1.1.3, and hooks 1.1.4. One side of the spring 1.1.1 is connected to one side of the fixed block 1.1.2. One side of the ejector rod 1.1.3 is connected to the other side of the fixed block 1.1.2. The other side of the ejector rod 1.1.3 abuts against the mirror base 2. There are two hooks 1.1.4, which are arranged at both ends of the spring 1.1.1. One side of the hook 1.1.4 is connected to one side of the fixed block 1.1.2.
[0021] The slider assembly 1.2 includes a slider base 1.2.1, a mounting plate 1.2.2, a mounting groove 1.2.3, an inclined lever 1.2.4, and a first slider 1.2.5. The other side of the spring 1.1.1 abuts against the slider base 1.2.1. Two mounting plates 1.2.2 are provided and are respectively arranged at one end of two hooks 1.1.4. The mounting groove 1.2.3 is arranged between the two mounting plates 1.2.2. A buckle groove 1.2.3.1 is provided on the side wall of the mounting groove 1.2.3. The other side of the hook 1.1.4 is engaged with the buckle groove 1.2.3.1. A first guide groove 1.2.1.1 is inclinedly provided on the slider base 1.2.1. The lower end of the inclined lever 1.2.4 passes through the first guide groove 1.2.1.1 and is connected to the other side of the first slider 1.2.5. The other side of the slider base 1.2.1 abuts against the mirror base 2. The hydraulic assembly 1.3 includes a push rod 1.3.1 and a hydraulic cylinder 1.3.2. One side of the push rod 1.3.1 is connected to the other side of the first slider 1.2.5. The hydraulic cylinder 1.3.2 is connected to the other side of the push rod 1.3.1 and drives the push rod 1.3.1 to push the first slider 1.2.5.
[0022] As Figure 4 shown, third guide grooves 1.2.1.3 are provided at both ends of the slider base 1.2.1. The third guide grooves 1.2.1.3 are arranged in parallel with the second guide grooves 1.2.3.2. One end of each of the two hooks 1.1.4 is embedded in the third guide grooves 1.2.1.3. Second guide blocks 1.1.2.1 are provided at both ends of the fixed block 1.1.2. The second guide blocks 1.1.2.1 cooperate with the third guide grooves 1.2.1.3.
[0023] As Figures 5 to 6 shown, a second guide groove 1.2.3.2 is further provided on the side wall of the mounting groove 1.2.3. The second guide groove 1.2.3.2 is inclinedly arranged and the arrangement direction intersects with the arrangement direction of the first guide groove 1.2.1.1. First guide blocks 1.2.1.2 corresponding to the second guide grooves 1.2.3.2 are provided at both ends of the slider base 1.2.1. The side wall of the first guide block 1.2.1.2 abuts against the side wall of the second guide groove 1.2.3.2.
[0024] Third guide blocks 1.2.5.1 are provided on both sides of the first slider 1.2.5. A fourth guide groove 1.2.3.3 corresponding to the third guide blocks 1.2.5.1 is further provided on the side wall of the mounting groove 1.2.3. The arrangement direction of the fourth guide groove 1.2.3.3 is the same as the moving direction of the push rod 1.3.1. The side wall of the third guide block 1.2.5.1 abuts against the side wall of the fourth guide groove 1.2.3.3.
[0025] Install the mold on the die-casting machine. After the mold is closed, inject the aluminum alloy solution through the gate and wait for the pouring to be completed. After the pouring is finished, open the mold. First, remove the upper mold, and then the hydraulic cylinder 1.3.2 drives the push rod 1.3.1 to retract to one side. The first slider 1.2.5 moves in the retracting direction of the push rod 1.3.1 under the cooperation of the third guide block 1.2.5.1 and the fourth guide groove 1.2.3.3. At the same time, it drives the inclined lever 1.2.4 to move obliquely downward relative to the slider base 1.2.1 under the guidance of the first guide groove 1.2.1.1. Thus, the inclined lever 1.2.4 drives the slider base 1.2.1 to move relative to the mounting plate 1.2.2 along the retracting direction of the push rod 1.3.1 at an inclined angle of 40° towards the ejector rod assembly 1.1 under the cooperation of the first guide block 1.1.2.1 and the second guide groove 1.2.1.1, and the second guide block 1.2.1.2 and the third guide groove 1.2.3.2. The hook 1.1.4 is engaged with the buckle groove 1.2.3.1, making the fixed block 1.1.2 stationary. As a result, the spring 1.1.1 changes from the original compressed state to the pre-compressed state. At the same time, the spring 1.1.1 acts on the fixed block 1.1.2, causing the ejector rod 1.1.3 to act on the mirror base 2. When the slider core 1.2.6 is disengaged from the mirror base 2, the mirror base 2 remains in the lower mold 3, and then the lower mold top plate ejects the mirror base 2. Finally, use the manipulator mechanism to take out the mirror base 2. Before the next demolding, the hydraulic cylinder 1.3.2 drives the push rod 1.3.1 to push out to the other side, causing the slider base 1.2.1 to also move to the other side, so that the spring 1.1.1 changes from the pre-compressed state to the compressed state.
[0026] The above has made an exemplary description of the present invention in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various non-substantive improvements are made by adopting the technical solutions of the present invention, or the concept and technical solutions of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.
Claims
1. An anti-deformation demoulding mechanism based on a reflector base, characterized in that: The demoulding mechanism (1) comprises a push rod assembly (1.1), a slider assembly (1.2), and a hydraulic assembly (1.3); the hydraulic assembly (1.3) is connected to one side of the slider assembly (1.2) and drives the slider assembly (1.2) to slide; the slider assembly (1.2) comprises a slider base (1.2.1) and a mounting plate (1.2.2); the push rod assembly (1.1) is arranged obliquely inside the slider base (1.2.1); the push rod assembly (1.1) comprises a spring (1.1.1), a fixing block (1.1.2), a plurality of push rods (1.1.3), and a hook (1.1.4); the hook (1.1.4) is arranged at both ends of the spring (1.1.1) and one side of the hook (1.1.4) is connected to the fixing block (1.1 .2), two mounting plates (1.2.2) are provided and arranged at one end of the hook (1.1.4), a mounting groove (1.2.3) is provided between the two mounting plates (1.2.2), a buckle groove (1.2.3.1) is provided on the side wall of the mounting groove (1.2.3), and the other side of the hook (1.1.4) is engaged with the buckle groove (1.2.3.1), so that one side of the spring (1.1.1) is against the slider base (1.2.1), one side of the push rod (1.1.3) is connected to one side of the fixed block (1.1.2), and the other side of the spring (1.1.1) is against the other side of the fixed block (1.1.2) to drive the other side of the push rod (1.1.3) to be against the reflector base (2).
2. The anti-deformation demoulding mechanism based on the reflector base according to claim 1, characterized in that: The slider assembly (1.2) further comprises an inclined lever (1.2.4) and a first slider (1.2.5); the hydraulic assembly (1.3) comprises a push rod (1.3.1) and a hydraulic cylinder (1.3.2); one side of the push rod (1.3.1) is connected to one side of the first slider (1.2.5); the hydraulic cylinder (1.3.2) is connected to the other side of the push rod (1.3.1) and drives the push rod (1.3.1) to push the first slider (1.2.5); the slider base (1.2.1) is inclinedly provided with a first guide groove (1.2.1.1); The lower end passes through the first guide groove (1.2.1.1) and is connected to the other side of the first slider (1.2.5); the side wall of the mounting groove (1.2.3) is further provided with a second guide groove (1.2.3.2); the second guide groove (1.2.3.2) is inclinedly arranged and the arrangement direction intersects with the arrangement direction of the first guide groove (1.2.1.1); first guide blocks (1.2.1.2) corresponding to the second guide groove (1.2.3.2) are arranged at both ends of the slider base (1.2.1); the side wall of the first guide block (1.2.1.2) abuts against the side wall of the second guide groove (1.2.3.2).
3. The anti-deformation demoulding mechanism based on the reflector base according to claim 2, characterized in that: The two ends of the slider base (1.2.1) are provided with a third guide groove (1.2.1.3), the third guide groove (1.2.1.3) is arranged in parallel with the second guide groove (1.2.3.2), one end of the two hooks (1.1.4) is embedded in the third guide groove (1.2.1.3), and the two ends of the fixed block (1.1.2) are provided with a second guide block (1.2.1.3). 1.1.2.1), the second guide block (1.1.2.1) cooperates with the third guide groove (1.2.1.3).
4. The anti-deformation demoulding mechanism based on a reflector base according to claim 2, characterized in that: A third guide block (1.2.5.1) is provided on both sides of the first sliding block (1.2.5), and a fourth guide groove (1.2.3.3) is provided on the side wall of the mounting groove (1.2.3) in correspondence with the third guide block (1.2.5.1). The setting direction of the fourth guide groove (1.2.3.3) is consistent with the moving direction of the push rod (1.3.1), and the side wall of the third guide block (1.2.5.1) abuts against the side wall of the fourth guide groove (1.2.3.3).