Mold-avoiding feeding structure

Abstract

The utility model discloses a mould avoids formula feeding structure, including mould core, be equipped with the acupoint for placing material in the mould core, the acupoint is "L" type, is equipped with the briquetting for limiting material in the mould core one side, the briquetting can be relative mould core oblique sliding, is equipped with the thimble below the mould core, the thimble can pass through the mould core and briquetting bottom and resist, for pushing its relative mould core oblique motion, when needing feeding, mould opens the mould, and the thimble below the mould core simultaneously stretches out from the mould core, and resists with briquetting bottom and then lifts it up, and the briquetting will be relative mould core oblique and slide upwards, and then make the position of original limit groove expand, make product can be more easily put into, and the upper end surface of product will not touch briquetting contact, also will not appear the situation of scratching.

Description

Technical Field

[0001] This utility model belongs to the field of stamping die structure technology, specifically a die avoidance feeding structure. Background Technology

[0002] Stamping is a common hardware processing technology. However, for hardware parts with uneven surfaces and tilt angles, all parts need to be pressed together during the stamping process to avoid problems such as displacement during stamping. However, during the process of placing the hardware parts, due to the very narrow space, the end face of the non-processed part of the hardware parts is easily scratched, affecting the appearance of the product and resulting in defective products. Utility Model Content

[0003] The purpose of this invention is to provide a mold avoidance feeding structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A mold avoidance feeding structure includes a mold core, in which there are acupoints for placing materials. The acupoints are L-shaped. A pressure block for limiting the material is located on one side of the mold core. The pressure block can slide obliquely relative to the mold core. An ejector pin is located below the mold core. The ejector pin can pass through the mold core and abut against the bottom of the pressure block to push it to move obliquely relative to the mold core.

[0006] A further technical solution involves installing a spring below the ejector pin.

[0007] A further technical solution is provided in which the mold core has a groove on its side for accommodating the pressure block, and inclined sliding grooves are provided on both sides of the groove. The pressure block has matching protrusions on both sides, and positioning beads are provided in the sliding grooves, with the positioning beads abutting against the sides of the protrusions.

[0008] In a further technical solution, the mold core is provided with a screw hole, and the positioning ball includes a threaded part and an abutting part. The threaded part is connected to the screw hole, and the abutting part extends out of the screw hole.

[0009] The beneficial effects of this utility model are:

[0010] When material needs to be loaded, the mold opens, and at the same time, the ejector pin located below the mold core extends out from the mold core, contacts the bottom of the pressure block and then lifts it up. The pressure block will slide upward relative to the mold core, thereby expanding the original position of the limiting groove, making it easier to put the product in. The upper surface of the product will not touch the pressure block, so there will be no scratches.

[0011] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0012] Figure 1 The mold opening structure of this utility model Figure 1 .

[0013] Figure 2 The mold opening structure of this utility model Figure 2 .

[0014] Figure 3 The disassembly structure of this utility model Figure 1 .

[0015] Figure 4 The disassembly structure of this utility model Figure 2 .

[0016] Reference numerals: 1-mold core, 11-cavity, 12-slot, 13-slide groove, 14-screw hole, 2-pressure block, 21-protrusion, 3-ejector pin, 4-positioning ball, 41-threaded part, 42-abutting part. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please refer to Figure 1-4 ;

[0019] This utility model adopts an avoidance feeding method, which can provide a larger feeding space for materials and avoid scratching them. Specifically, it includes a mold core 1, which has a cavity 11 for placing materials. The cavity 11 is L-shaped, although it can also be L-shaped. A pressure block 2 is provided on one side of the mold core 1 to confine and tighten the materials. More specifically, the shape of the cavity 11 is designed according to the product, that is, the product is also L-shaped. The L-shaped product is divided into two parts. The first part is a plane, and the other part is connected to one side of the plane and tilted downward at a certain angle, similar to L-shaped copper busbar products. The shape of the cavity 11 fits the lower end face of the product. During the production process, the plane of the first part is mainly processed, while the second part needs to be limited and fixed by the pressure block 2 and the mold core 1.

[0020] However, in the existing technology, there is no pressure block 2. Only a slot is set in the mold core 1 for the second part to be inserted. This not only makes it difficult to load the material, but is also the main reason for scratches on the surface. Therefore, in this embodiment, the pressure block 2 can slide obliquely relative to the mold core 1. In the initial state, the pressure block 2 fits with the mold core 1 to form a limiting groove that is adapted to the second part of the product. When loading is required, the mold opens, and the ejector pin 3 located below the mold core 1 extends out from the mold core 1, abuts against the bottom of the pressure block 2, and then lifts it up. Since the movement trajectory of the pressure block 2 is limited, the pressure block 2 will slide upward relative to the mold core 1, thereby expanding the position of the original limiting groove, making it easier for the product to be placed in it. Furthermore, the upper surface of the second part will not touch the pressure block 2, so there will be no scratches. After the mold is closed again, the ejector pin 3 retracts, and the upper mold presses the pressure block 2 down to reset it. Similarly, it moves downward, restoring the space of the limiting groove and thus limiting its position.

[0021] There are two embodiments regarding the movement method of the pressure block 2;

[0022] In Example 1, since the ejector pins that eject the product will reset after ejection, and if the ejector pin 3 in this solution is synchronized with it, it will reset after ejection, causing the pressure block 2 to fall in under the action of gravity. At this time, no material has been loaded. However, the ejector pin 3 in this solution will not eject the product, but only act on the pressure block 2. Therefore, it can not move synchronously with the product and continue to maintain the ejection state. That is, a spring (not shown) is provided below the ejector pin 3. The other end of the spring contacts the lower mold part, so that it maintains the tendency to push the pressure block 2 upward. When the mold is closed, it is used to keep the upper mold in a downward state to press the pressure block 2 and maintain the shape of the limiting groove. When the mold is open, the upper mold is far away and will not apply pressure to the pressure block 2. At this time, the ejector pin 3 is ejected under the action of the spring, and then pushes the pressure block 2 to tilt and slide upward. Since the ejector pin 3 and the product ejector pin are not synchronized, they will not be affected. After the mold is closed again, the pressure block 2 resets.

[0023] In the second embodiment, the ejector pin 3 of this solution moves synchronously with the ejector pin 3 that ejects the product. More specifically, the mold core 1 has a groove 12 on its side for accommodating the pressure block 2. The groove 12 has inclined sliding grooves 13 on both sides. The pressure block 2 has matching protrusions 21 on both sides. A positioning ball 4 is located in the sliding groove 13. The positioning ball 4 abuts against the side of the protrusion 21. The sliding direction of the pressure block 2 is limited by the sliding groove 13 and the protrusion 21. When the mold is open, the ejector pin 3 of this solution moves upward synchronously while ejecting the product, overcoming the friction between the positioning ball 4 and the protrusion 21, and then pushing the pressure block 2 to move upward at an incline. After the product is ejected, the ejector pin 3 of this solution also moves backward to reset. At this time, the pressure block 2 remains suspended under the action of the positioning ball 4, that is, the space between the pressure block 2 and the mold core 1 remains large, which can meet the material feeding requirements. Then, when the mold is closed, the pressure block 2 is pressed down to reset.

[0024] Based on a further extension of Embodiment 2, the positioning ball 4 can be integrally formed by CNC machining. However, after long-term use, it will wear out, resulting in a decrease in friction with the pressure block 2, making it impossible to maintain its suspended state; moreover, it cannot be restored to its state through secondary processing. Therefore, in this embodiment, the mold core 1 is provided with a screw hole 14, and the positioning ball 4 includes a threaded part 41 and an abutting part 42. The abutting part 42 is spherical, the threaded part 41 is connected to the screw hole 14, and the abutting part 42 extends out of the screw hole 14. After the positioning ball 4 wears out, it can be replaced in a detachable manner, which is convenient and quick.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mold-avoiding feeding structure, comprising a mold core (1), wherein a hole (11) for placing material is arranged in the mold core (1), characterized in that: The acupoint (11) is L-shaped and has a pressure block (2) for limiting the material on one side of the mold core (1). The pressure block (2) can slide obliquely relative to the mold core (1). A ejector pin (3) is provided below the mold core (1). The ejector pin (3) can pass through the mold core (1) and abut against the bottom of the pressure block (2) to push it to move obliquely relative to the mold core (1).

2. The mold avoidance feeding structure according to claim 1, characterized in that: A spring is provided below the ejector pin (3).

3. The mold avoidance feeding structure according to claim 1, characterized in that: The mold core (1) has a groove (12) on its side for accommodating the pressure block (2). The groove (12) has inclined sliding grooves (13) on both sides. The pressure block (2) has matching protrusions (21) on both sides. A positioning ball (4) is located in the sliding groove (13). The positioning ball (4) abuts against the side of the protrusion (21).

4. The mold avoidance feeding structure according to claim 3, characterized in that: The mold core (1) is provided with a screw hole (14), and the positioning ball (4) includes a threaded part (41) and an abutting part (42). The threaded part (41) is connected to the screw hole (14), and the abutting part (42) extends out of the screw hole (14).

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