A row needle die capable of avoiding insertion

Abstract

This utility model belongs to the field of mold technology, and in particular to a sliding pin mold that avoids insertion through the mold. It includes a rear inner mold, a mold sliding part above the rear inner mold, a connecting shell fixed below the mold sliding part, and an upper shell installed above the connecting shell. Reset pins are inserted through both sides of the upper shell, and spring pins are movably installed below the reset pins. A telescopic spring is sleeved on the outer side of the spring pin. Several rear mold pins are inserted inside the rear inner mold. The symmetrically distributed reset pins of this application provide uniform spring force during mold opening, ensuring that the spring pins quickly and synchronously disengage from the rear mold pins, avoiding secondary friction caused by uneven reset. Through the elastic contact design between the spring pins and the telescopic spring, the rigid friction between the spring pins and the rear mold pins in traditional molds is avoided, significantly reducing the risk of insertion through the mold. This prevents existing molds from having the sliding part easily rub against the rear mold pins during processing, leading to burrs on the friction surface and damage to the steel material.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically relating to a sliding spring pin mold that avoids insertion through. Background Technology

[0002] Molds are forming tools used in industrial production for processes such as injection molding, blow molding, extrusion, die casting, forging, and stamping. They mainly achieve the shaping of products by changing the physical state of materials (such as melting, softening, or plastic deformation) and are known as the "mother of industry".

[0003] In existing molds, the slide pins are prone to friction with the inner pins of the rear mold during processing, resulting in burrs on the friction surface and damage to the steel material. To address this, we propose a slide pin mold that avoids this problem. Utility Model Content

[0004] To address the problem mentioned in the background art where existing molds, during processing, easily rub against the inner pins of the rear mold, resulting in burrs on the friction surface and damage to the steel material, this utility model provides a slide spring pin mold that avoids through-hole insertion. This effectively solves the problem of through-hole insertion between the rear mold and the slide, preventing damage to the bottom of the slide that leads to scratches or excessive glue on the product.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sliding spring pin mold that avoids insertion and penetration, comprising a rear inner mold, a mold sliding part is provided above the rear inner mold, a connecting shell is fixed below the mold sliding part, and an upper shell is installed above the connecting shell;

[0006] Both sides of the upper housing are provided with reset pins, and spring pins are movably installed below the reset pins. A telescopic spring is sleeved on the outside of the spring pins, and several rear mold pins are provided inside the rear inner mold.

[0007] As a preferred embodiment of the present invention for a sliding spring pin mold that avoids insertion, the mold slide and the rear inner mold are interlocked, and a mold top plate is provided above the mold slide.

[0008] As a preferred embodiment of the present invention for a sliding spring pin mold that avoids insertion, the reset pins are symmetrically distributed about the vertical center line of the mold sliding position, and the reset pins correspond one-to-one with the spring pins.

[0009] As a preferred embodiment of the present invention for a sliding spring pin mold that avoids insertion, the spring pin forms an elastic structure with the rear mold pin through the telescopic spring.

[0010] As a preferred embodiment of the present invention for a sliding spring pin mold that avoids insertion, positioning blocks are fixed on both sides of the connecting housing and the upper housing, and positioning bolts are inserted inside the positioning blocks.

[0011] As a preferred embodiment of the present invention for a sliding spring pin mold that avoids insertion, the connecting housing is fixed relative to the upper housing by the positioning block and the positioning bolt, and the spring pin and the telescopic spring are both detachably connected to the upper housing.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In this application, elastic contact is used instead of rigid insertion. Through the elastic contact design between the spring pin and the telescopic spring, the rigid friction between the spring pin and the rear mold pin in the traditional mold is avoided, which significantly reduces the risk of insertion and prevents the existing mold from having problems such as the slide rubbing against the inner pin of the rear mold during the processing, resulting in burrs on the friction surface and damage to the steel material. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the rear inner mold and the mold top plate of this utility model;

[0016] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0017] Figure 4 This is a schematic diagram of the external front view of the present invention;

[0018] Figure 5 This is an exploded view of the present invention.

[0019] In the diagram: 1. Rear inner mold; 2. Mold slide; 3. Connecting shell; 4. Upper shell; 5. Positioning block; 6. Positioning bolt; 7. Spring pin; 8. Telescopic spring; 9. Reset pin; 10. Rear mold pin; 11. Mold top plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] like Figures 1-5 As shown;

[0022] A sliding spring pin mold that avoids insertion includes a rear inner mold 1, a mold slide 2 is provided above the rear inner mold 1, a connecting housing 3 is fixed below the mold slide 2, and an upper housing 4 is installed above the connecting housing 3; reset pins 9 are provided on both sides inside the upper housing 4, spring pins 7 are movably installed below the reset pins 9, a telescopic spring 8 is sleeved on the outside of the spring pins 7, and a plurality of rear mold pins 10 are provided inside the rear inner mold 1.

[0023] In this implementation scheme, elastic contact is used instead of rigid insertion. The elastic contact design between the spring pin 7 and the telescopic spring 8 avoids the rigid friction between the spring pin 7 and the rear mold pin 10 in traditional molds, significantly reducing the risk of insertion.

[0024] Furthermore:

[0025] In an optional embodiment, the mold slide 2 engages with the rear inner mold 1, and a mold top plate 11 is provided above the mold slide 2.

[0026] In this implementation plan, the interlocking design between the mold slide 2 and the rear inner mold 1 enhances the positioning accuracy during mold closing and reduces the risk of misalignment caused by vibration or impact.

[0027] Furthermore:

[0028] In an optional embodiment, the reset pins 9 are symmetrically distributed about the vertical center line of the mold slide 2, and the reset pins 9 correspond one-to-one with the spring pins 7.

[0029] In this implementation scheme: the symmetrically distributed reset pins 9 provide uniform spring force when the mold opens, ensuring that the spring pins 7 quickly and synchronously disengage from the rear mold pins 10, avoiding secondary friction caused by uneven reset.

[0030] Furthermore:

[0031] In an optional embodiment, the spring pin 7 forms an elastic structure with the rear die pin 10 via the telescopic spring 8.

[0032] In this implementation scheme: the telescopic spring 8 absorbs the impact force when the mold is closed, and disperses the pressure through elastic deformation, avoiding direct rigid contact between the spring pin 7 and the rear mold pin 10.

[0033] Furthermore:

[0034] In an optional embodiment, positioning blocks 5 are fixed on both sides of the connecting housing 3 and the upper housing 4, and positioning bolts 6 are inserted inside the positioning blocks 5; the connecting housing 3 is fixed relative to the upper housing 4 through the positioning blocks 5 and the positioning bolts 6, and the spring pin 7 and the telescopic spring 8 are detachably connected to the upper housing 4.

[0035] In this implementation plan: the connecting housing 3 and the upper housing 4 can be separated by removing the positioning bolt 6, and the spring pin 7 or the telescopic spring 8 can be directly replaced without disassembling the entire mold, saving maintenance time and costs.

[0036] Working principle: First, the mold is closed. The inner mold 1 is positioned close to the mold slide 2 and the mold top plate 11, allowing for precise alignment and pressing through the engagement of the mold slide 2 and the inner mold 1. Next, the spring pin 7, under the action of the telescopic spring 8, forms elastic contact with the rear mold pin 10, rather than rigidly inserting. After the spring pin 7 springs open, there is clearance between the slide and the rear mold pin 10, avoiding the risk of burrs and damage to the steel material. When the mold slide 2 is compressed, the spring pin 7 absorbs the impact force through the compression of the telescopic spring 8, preventing direct friction against the surface of the rear mold pin 10. Meanwhile, an elastic buffer pad is provided at the contact end of the spring pin 7 and the rear mold pin 10. Combined with the double elastic support of the telescopic spring 8, it can further absorb the impact force of mold closing and reduce the risk of insertion. Then, when the mold is opened, the symmetrically distributed reset pins 9 push the spring pin 7 back to its original position by the spring force, ensuring that the spring pin 7 and the rear mold pin 10 are quickly separated and avoiding secondary friction. Finally, when the spring pin 7 and the telescopic spring 8 need to be replaced, the connecting housing 3 and the upper housing 4 can be separated by removing the positioning bolt 6, which facilitates the direct replacement of parts without disassembling the entire mold.

[0037] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pin-avoiding row needle die, comprising a back inner die (1), characterized in that: A mold slide (2) is provided above the rear inner mold (1), a connecting shell (3) is fixed below the mold slide (2), and an upper shell (4) is installed above the connecting shell (3). Both sides of the upper housing (4) are provided with reset pins (9), and spring pins (7) are movably installed below the reset pins (9). A telescopic spring (8) is sleeved on the outside of the spring pins (7), and several rear mold pins (10) are provided inside the rear inner mold (1).

2. The ejector pin die of claim 1, wherein: The mold slide (2) engages with the rear inner mold (1), and a mold top plate (11) is provided above the mold slide (2).

3. The ejector pin die of claim 1, wherein: The reset pins (9) are symmetrically distributed about the vertical center line of the mold slide (2), and the reset pins (9) correspond one-to-one with the spring pins (7).

4. A sliding spring pin mold to avoid insertion according to claim 1, characterized in that: The spring needle (7) forms an elastic structure with the rear die needle (10) through the telescopic spring (8).

5. The ejector pin die of claim 1, wherein: Positioning blocks (5) are fixed on both sides of the connecting housing (3) and the upper housing (4), and positioning bolts (6) are inserted inside the positioning blocks (5).

6. The ejector pin die of claim 5, wherein: The connecting housing (3) is fixed relative to the upper housing (4) by the positioning block (5) and the positioning bolt (6), and the spring pin (7) and the telescopic spring (8) are detachably connected to the upper housing (4).

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