A new negative angle shaping material returning mechanism

Abstract

The utility model discloses a novel material returning mechanism of negative angle shaping, and its technical scheme main points are, including mould positioning board, two mounting seats are borne and arranged on mould positioning board upper end surface, and the hand avoiding area is formed between two mounting seats, and the first positioning pin is installed on two mounting seat upper end surfaces, the second positioning pin is still installed on mould positioning board upper end surface, the block is installed on mould positioning board upper end surface, and the pivot is assembled in the block, the slot is seted up on the block upper end surface and is vertically slid in it and is provided with the drive block. Compared with traditional interactive angle mechanism, the application multi-angle negative angle processing ability is strong: the pivot of circular design provides multi-angle adaptability, supports complex cup / slope product shaping, and the automatic material returning efficiency is high, and manual intervention is not needed, and the first positioning pin and the second positioning pin set simultaneously provide high-precision positioning function, ensure that the position of workpiece body is stable in the material returning process, and avoid misoperation.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing, and in particular to a novel material ejection mechanism for negative angle shaping. Background Technology

[0002] In the mold manufacturing industry, multi-station and multi-cavity molds are becoming increasingly common because they can improve production efficiency and save mold costs. Sometimes, during the mold production process, some parts will produce negative angles after molding, which will affect part removal and production.

[0003] In mold making, negative angle forming refers to achieving a specific geometric shape or structure by applying a negative angle to the workpiece during mold manufacturing. A negative angle typically means that a surface of the workpiece forms an angle less than zero with a reference plane (such as a horizontal plane), i.e., the surface is tilted inward relative to the reference plane. This design and processing method, in certain mold types and applications, can optimize the molding process, improve production efficiency, and even enhance product performance and appearance.

[0004] To address the issue of parts failing to be removed from the punch after forming due to a negative angle, the traditional solution is to use an interactive wedge mechanism. This mechanism moves the punch to remove the part. However, this wedge mechanism has several drawbacks: 1. The interactive wedge mechanism lacks a drive mechanism on the back, requiring it to withstand forming forces during flanging; fixed wedges are generally unsuitable. 2. If the part is large, using an interactive wedge makes machining, assembly, and debugging inconvenient, and increases mold costs. 3. In multi-station and multi-cavity molds, the production step distance and space for each process are limited. If the side-flipping and retraction stroke is large, the space may not be sufficient when using an interactive wedge.

[0005] Therefore, in response to the problem of negative angles in the formed parts, a novel material ejection mechanism for negative angle shaping is proposed to solve the above problem. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a new type of negative angle forming ejection mechanism, which solves the problem that the negative angle generated after the part is formed cannot be removed from the punch, and solves the problem caused by the traditional interactive wedge mechanism that moves the punch to remove the part. Moreover, the overall structure of this new ejection mechanism is simple and easy to maintain.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A novel negative angle shaping ejection mechanism includes a mold positioning plate;

[0009] The upper surface of the mold positioning plate is provided with two mounting seats, and a hand-clamping avoidance area is formed between the two mounting seats. A first positioning pin is installed on the upper surface of each of the two mounting seats.

[0010] A second positioning pin is also installed on the upper surface of the mold positioning plate;

[0011] A block is installed on the upper surface of the mold positioning plate, and a rotating shaft is assembled inside the block;

[0012] The upper surface of the block has a slot, and a driving block is vertically slidably installed inside it.

[0013] Furthermore, a spring connecting plate is installed at the bottom of the mold positioning plate, and a nitrogen spring is assembled inside the spring connecting plate. The nitrogen spring is arranged adjacent to the bottom end of the drive block.

[0014] Furthermore, a workpiece body is externally mounted on the second positioning pin, and the edge of the workpiece body is adjacent to the two first positioning pins.

[0015] Furthermore, the second positioning pin and the two mounting seats are arranged in a triangular pattern.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. Through the overall structure of the ejection mechanism of this application, in actual use, compared with the traditional interactive wedge mechanism, this application has a strong multi-angle negative angle handling capability: the circular design of the rotating shaft provides multi-angle adaptability, supports the shaping of complex cup-shaped / sloping surface products, and has high automatic ejection efficiency without manual intervention. At the same time, the first positioning pin and the second positioning pin provided high-precision positioning function to ensure the stability of the workpiece body during the ejection process and avoid misoperation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0019] Figure 2 This is a schematic diagram of the installation structure in the workpiece release state in this embodiment;

[0020] Figure 3 This is a schematic diagram of the overall planar cross-sectional structure of this embodiment.

[0021] In the diagram, 1 is the mold positioning plate; 2 is the mounting base; 3 is the first positioning pin; 4 is the second positioning pin; 5 is the workpiece body; 6 is the block; 7 is the rotating shaft; 8 is the drive block; 9 is the spring connecting plate; and 10 is the nitrogen spring. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0024] First embodiment;

[0025] Reference Figure 1-3 As shown, this is a novel negative angle shaping material ejection mechanism in a preferred embodiment of the present invention, including a mold positioning plate 1;

[0026] The upper surface of the mold positioning plate 1 is provided with two mounting seats 2, and a hand-clamping avoidance area is formed between the two mounting seats 2. The upper surface of each of the two mounting seats 2 is equipped with a first positioning pin 3.

[0027] A second positioning pin 4 is also installed on the upper end face of the mold positioning plate 1;

[0028] A block 6 is installed on the upper surface of the mold positioning plate 1, and a rotating shaft 7 is assembled inside the block 6.

[0029] The upper surface of the block 6 has a slot and a driving block 8 is vertically slidably installed inside it.

[0030] In this embodiment, through the overall structure of the material ejection mechanism of this application, in actual use, compared with the traditional interactive wedge mechanism, this application has a strong multi-angle negative angle processing capability: the circular design of the rotating shaft 7 provides multi-angle adaptability, supports the shaping of complex cup-shaped / sloping surface products, and has high automatic material ejection efficiency without manual intervention. At the same time, the first positioning pin 3 and the second positioning pin 4 provided high-precision positioning function to ensure the stable position of the workpiece body 5 during the material ejection process and avoid misoperation.

[0031] Second embodiment;

[0032] Reference Figure 1-3 As shown, a spring connecting plate 9 is installed at the bottom of the mold positioning plate 1, and a nitrogen spring 10 is installed inside the spring connecting plate 9. The nitrogen spring 10 is arranged adjacent to the bottom end of the drive block 8.

[0033] In this embodiment, the spring connecting plate 9 can work with the nitrogen spring 10 to control the elastic reset stroke of the drive block 8, thereby realizing the material ejection action and guiding the drive block 8 to move along the guide rail direction.

[0034] Third embodiment;

[0035] Reference Figure 1-3As shown, the workpiece body 5 is externally mounted on the second positioning pin 4, and the edge of the workpiece body 5 is adjacent to the two first positioning pins 3.

[0036] In this embodiment, the second positioning pin 4 can cooperate with the first positioning pin 3 to perform final precise limiting and positioning of the workpiece body 5, ensuring that the workpiece body 5 smoothly exits the negative angle area in a predetermined direction during the material removal process.

[0037] Fourth embodiment;

[0038] Reference Figure 1-2 As shown, the second locating pin 4 and the two mounting bases 2 are arranged in a triangular shape.

[0039] In this embodiment, when the drive block 8 is driven to lift upward, it works together with the first positioning pin 3 and the second positioning pin 4 to fix the product, ensuring that the workpiece body 5 does not shift position during the unloading process.

[0040] Specific implementation process:

[0041] Step 1: Initial Stage: When the upper mold closes, the drive block 8 moves downwards, and its bottom structure first contacts the rotating shaft 7. At this point, the drive block 8 continues to move downwards, limiting the rotating shaft 7 to its lowest position. This causes the rotating shaft 7 to push the side wall to complete the negative angle shaping, positioning, and clamping. The workpiece body 5 then completes its negative angle positioning and shaping. Because the rotating shaft 7 has a circular structure, it possesses a certain degree of freedom in its rotation angle, allowing it to cooperate with the inclined or negative angle surfaces of the side at different angles to achieve the shaping and clamping of the side wall of the workpiece body 5. The circular design can adapt to various negative angle structures, improving the adaptability and versatility of the mold.

[0042] Step 2: Unloading Stage: After the product shaping is completed, the drive block 8 begins its upward return stroke. When the drive block 8 is driven upward, it works in conjunction with the first positioning pin 3 and the second positioning pin 4 to fix the product, ensuring that the workpiece body 5 does not shift position during the unloading process. At this time, the product is pushed out of the negative angle area and completely removed from the negative angle shaping area, exposed between the gripper avoidance areas of the two mounting seats 2, preparing for the next operation. At this time, the automatic line gripper mechanism, such as a robot or gripper, can accurately enter and grip the workpiece body 5 from the mold cavity, ready to enter the next process or packaging section, realizing fully automated operation. During this period, the nitrogen spring 10 provides reverse support for the entire unloading mechanism during the unloading process, ensuring smooth unloading action and avoiding excessive impact on the mechanism.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0044] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description in the specification and the accompanying drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

Claims

1. A novel negative angle shaping material ejection mechanism, characterized in that: Including mold positioning plate (1); The upper surface of the mold positioning plate (1) is provided with two mounting seats (2), and a hand-clamping avoidance area is formed between the two mounting seats (2). The upper surface of each of the two mounting seats (2) is equipped with a first positioning pin (3). The upper end face of the mold positioning plate (1) is also equipped with a second positioning pin (4); A block (6) is installed on the upper end face of the mold positioning plate (1), and a rotating shaft (7) is assembled inside the block (6); The upper surface of the block (6) is provided with a slot and a driving block (8) is vertically slidably disposed inside it.

2. The novel negative angle shaping material ejection mechanism according to claim 1, characterized in that: A spring connecting plate (9) is installed at the bottom of the mold positioning plate (1), and a nitrogen spring (10) is installed inside the spring connecting plate (9). The nitrogen spring (10) is arranged adjacent to the bottom end of the drive block (8).

3. The novel negative angle shaping material ejection mechanism according to claim 1, characterized in that: The second positioning pin (4) is externally fitted with a workpiece body (5), and the edge of the workpiece body (5) is adjacent to the two first positioning pins (3).

4. The novel negative angle shaping material ejection mechanism according to claim 1, characterized in that: The second positioning pin (4) and the two mounting seats (2) are arranged in a triangular shape.

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