Locking mechanism for preventing inner sliding block from retreating
By using the combination of oil cylinder plus bend pins in the inner slide mechanism, the problem of inner slide back is solved, the product dimensional stability and the reliability of the oil cylinder are improved, and the failure rate and cost are reduced.
Patent Information
- Application Number
- CN202422299068.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-20
AI Technical Summary
In the prior art, the inner slider mechanism cannot effectively prevent backwards, resulting in unstable product size, poor cylinder stability and high failure rate.
The combination of oil cylinder plus bend pins is used instead of the combination of the one-way valve filling cylinder. The bending pins allocate the expansion force, reduce the pressure on the oil cylinder and improve the reliability of the inner slide.
Improve the stability of product size and reduce the failure rate and procurement cost of oil cylinders.
Smart Images
Figure CN223145963U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of die-casting molds, and particularly relates to a locking mechanism for preventing the inner slide block from retreating. Background Art
[0002] For some die-castings with special structures, an inner slide block mechanism is required on the mold. Since the inner slide block mechanism cannot be locked by the fixed mold clamping (the inner slide block is on the back of the moving mold), the original design was to increase the cylinder diameter of the oil cylinder and install a hydraulic check valve to prevent the inner slide block from retreating during pressurization. However, the actual use effect was not ideal, with poor stability. The swelling force fully acted on the oil cylinder. When the locking force of the oil cylinder could not support it, the inner slide block would retreat, resulting in unstable product dimensions. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a locking mechanism for preventing the inner slide block from retreating, which has a simple structure, can prevent the inner slide block from retreating, improve the stability of the oil cylinder, and improve the product qualification rate, so as to solve the problems in the prior art.
[0004] The technical solution of the utility model is: a locking mechanism for preventing the inner slide block from retreating, the locking mechanism includes a casting, an inner slide block, a connecting rod, a first slide block seat, a first pressing plate, a second pressing plate, a wear-resistant block, a second slide block seat, a bent pin and an oil cylinder;
[0005] The upper end of the inner slide block is connected below the casting, the lower end of the inner slide block is connected to the first slide block seat, the second slide block seat is connected to the first slide block seat, the connecting rod is arranged between the first slide block seat and the casting, the two sides of the second slide block seat are respectively connected to the first pressing plate and the second pressing plate, the middle part of the bent pin is arranged in the second slide block seat, the left half part and the right half part of the bent pin are respectively connected to the first pressing plate and the second pressing plate, the end of the left half part of the bent pin is connected to the oil cylinder, and the end of the right half part of the bent pin is connected to the wear-resistant block.
[0006] The beneficial effect of the utility model is: the combination of the oil cylinder and the bent pin is used to replace the combination of the check valve and the oil cylinder in the original design, which ensures the reliability of the inner slide block mechanism, improves the stability of the product dimensions, and reduces the procurement cost and failure rate of the oil cylinder. Brief Description of the Drawings
[0007] Figure 1 It is a structural schematic diagram of the utility model.
[0008] In the figure, 1 is the casting, 2 is the inner slide block, 3 is the connecting rod, 4 is the first slide block seat, 5 is the first pressing plate, 6 is the second pressing plate, 7 is the wear-resistant block, 8 is the second slide block seat, 9 is the bent pin, and 10 is the oil cylinder. Detailed Description of the Preferred Embodiment
[0009] A locking mechanism for preventing the inner slider from retracting. The locking mechanism includes a casting 1, an inner slider 2, a connecting rod 3, a first slider seat 4, a first pressing plate 5, a second pressing plate 6, a wear-resistant block 7, a second slider seat 8, a bent pin 9, and an oil cylinder 10;
[0010] The upper end of the inner slider 2 is connected below the casting 1, the lower end of the inner slider 2 is connected to the first slider seat 4, the second slider seat 8 is connected to the first slider seat 4, the connecting rod 3 is arranged between the first slider seat 4 and the casting 1, both sides of the second slider seat 8 are respectively connected to the first pressing plate 5 and the second pressing plate 6, the middle part of the bent pin 9 is arranged in the second slider seat 8, the left half and the right half of the bent pin 9 are respectively connected to the first pressing plate 5 and the second pressing plate 6, the end of the left half of the bent pin 9 is connected to the oil cylinder 10, and the end of the right half of the bent pin 9 is connected to the wear-resistant block 7.
[0011] The working principle of the present utility model is: during the aluminum liquid filling process, the mold expanding force does not directly act on the oil cylinder 10 entirely. The mold expanding force is distributed to the oil cylinder 10 and the wear-resistant block 7 through the bent pin 9, so that the oil cylinder 10 only receives a very small part of the mold expanding force, ensuring the stability of the oil cylinder 10 during use, and the cylinder diameter of the oil cylinder 10 is also smaller than the initial design.
[0012] In the description of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is 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, and therefore should not be construed as a limitation to the present utility model.
[0013] In the present utility model, unless otherwise clearly specified and limited, for example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0014] The standard parts used in the present utility model can all be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings.
[0015] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A locking mechanism for preventing the inner slider from retracting, characterized in that: The described locking mechanism includes a casting (1), an inner slider (2), a connecting rod (3), a first slider seat (4), a first pressing plate (5), a second pressing plate (6), a wear-resistant block (7), a second slider seat (8), a bent pin (9), and an oil cylinder (10); The upper end of the inner slider (2) is connected below the casting (1), the lower end of the inner slider (2) is connected to the first slider seat (4), the second slider seat (8) is connected to the first slider seat (4), the connecting rod (3) is arranged between the first slider seat (4) and the casting (1), the two sides of the second slider seat (8) are respectively connected to the first pressing plate (5) and the second pressing plate (6), the middle part of the bent pin (9) is arranged in the second slider seat (8), the left half and the right half of the bent pin (9) are respectively connected to the first pressing plate (5) and the second pressing plate (6), the end of the left half of the bent pin (9) is connected to the oil cylinder (10), and the end of the right half of the bent pin (9) is connected to the wear-resistant block (7).