Injection mold slide composite mechanism

Abstract

The utility model discloses a kind of injection mould slider composite mechanisms, including fixed slider and movable slider, while the inclined surface of fixed slider and movable slider contact is arranged, fixed slider is provided with inclined guide pillar, movable slider is provided with inclined hole compatible with inclined guide pillar, movable slider is provided with one middle forming pin and two groups of side forming pins, side forming pin is separately arranged in the two sides of middle forming pin, and while the contact surface of side forming pin and middle forming pin is inwardly inclined, sliding block structure is arranged between contact surface;While one side forming pin corresponding limit block is arranged on fixed slider, when fixed slider and movable slider are combined, side forming pin rear end surface is abutted with limit block.The utility model realizes the synchronous ejection of the structure different from the slider ejection direction and the mould main ejection direction during the slider ejection process, to solve the demoulding problem of complex structure, avoid product strain or mould damage;Secondly, the present application structure is simple, easy to maintain, reduce production cost.

Description

Technical Field

[0001] This utility model belongs to the field of injection molds, and more specifically, relates to a slider composite mechanism for injection molds. Background Technology

[0002] Injection molds are molds used in the injection molding process. They are used for plastic injection molding and are tools for producing plastic products. Injection molds work by heating and melting plastic material, then injecting it into the mold cavity, allowing it to cool and solidify, ultimately yielding the desired plastic product. Injection molds typically consist of two parts: a moving mold and a fixed mold. After the molds are closed, a mold cavity is formed. Plastic material is injected into the mold cavity under the pressure of the injection molding machine. After cooling and solidification, the mold is opened to remove the finished product.

[0003] Currently, slider mechanisms are commonly used in injection molding processes. These mechanisms are frequently employed in injection mold design, primarily for molding products with undercut structures where the ejection direction is not aligned with the main mold direction. However, when products contain features such as... Figure 1 When structure a is in the middle, the demolding direction of structure a is different from both the slider demolding direction and the main mold demolding direction, which makes it impossible for the conventional slider structure to achieve the molding and demolding. Utility Model Content

[0004] In order to solve the problems existing in the prior art, this utility model aims to provide a composite mechanism for injection mold sliders, so as to realize the synchronous demolding of structures that are different from the slider demolding direction and different from the main demolding direction of the mold during the demolding process.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A composite mechanism for injection mold sliders includes a fixed slider and a movable slider. The contact surfaces of the fixed slider and the movable slider are inclined. The fixed slider is provided with an inclined guide post, and the movable slider is provided with an inclined hole adapted to the inclined guide post. The movable slider is provided with a central forming pin that can move synchronously therewith and two sets of side forming pins that can slide within it. The side forming pins are respectively located on both sides of the central forming pin. While the contact surfaces of the side forming pins and the central forming pin are inclined inward, a sliding groove slider structure is provided between the contact surfaces. A limiting block corresponding to each side forming pin is provided on the fixed slider. When the fixed slider and the movable slider are combined, the rear end face of the side forming pin abuts against the limiting block.

[0007] Furthermore, the front end of the movable slider is provided with a detachable pressure block, which spans the middle forming pin and the side forming pin.

[0008] Furthermore, a mounting platform is provided at the rear end of the forming pin, and a slot adapted to the mounting platform is provided on the movable slider.

[0009] Furthermore, the pressure block is provided with guide shafts that correspond one-to-one with the side forming pins, and the side forming pins are provided with guide holes that are adapted to the guide shafts.

[0010] Furthermore, the guide hole is an elongated oval hole, and its length direction is parallel to the inclined square shape of the contact surface of the side forming pin and the middle forming pin.

[0011] Furthermore, the slide block structure includes a slide groove formed on the side forming pin and a slider disposed on the middle forming pin for fitting with the slide groove; or, the slide block structure includes a slide groove formed on the middle forming pin and a slider disposed on the side forming pin for fitting with the slide groove.

[0012] Furthermore, the groove is a T-groove or a dovetail groove.

[0013] Furthermore, a positioning hole is provided on the bottom surface of the movable slider.

[0014] Furthermore, the lower end of the limiting block is provided with an angle.

[0015] The beneficial effects of this utility model are as follows: This utility model achieves synchronous demolding of structures that are different from the demolding direction of the slider and different from the main demolding direction of the mold during the demolding process of the slider by combining the compound motion of the fixed slider and the moving slider and the coordinated action of the middle forming pin and the side forming pin. This solves the demolding problem of complex structures and avoids product tearing or mold damage. Secondly, the structure of this application is simple, easy to maintain, and reduces production costs.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram for reference to the present invention;

[0019] Figure 2 This is a schematic diagram of the overall structure of the mechanism of this utility model;

[0020] Figure 3 This is an exploded view of the mechanism of this utility model;

[0021] Figure 4 This is a side view showing the connection between the mechanism and the product in this utility model.

[0022] Figure 5 This is a partial schematic diagram showing the connection between the mechanism and the product of this utility model;

[0023] Figure 6 This is a side view of the demolding stage of the mechanism of this utility model;

[0024] Figure 7 This is a partial schematic diagram of the demolding stage of the mechanism of this utility model;

[0025] Figure 8 This is a two-side view of the demolding stage of the mechanism of this utility model.

[0026] The following are the labels in the diagram: 1. Fixed slider; 2. Moving slider; 3. Inclined guide post; 4. Center forming pin; 5. Side forming pin; 6. Limiting block; 7. Pressure block; 8. Guide shaft; 9. Slide groove; 10. Slider; 21. Inclined hole; 22. Slot hole; 41. Hanging platform; 51. Guide hole; 61. Angled angle. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] See Figure 2-3 As shown, a sliding block composite mechanism for injection molds includes a fixed sliding block 1 and a movable sliding block 2. The contact surfaces of the fixed sliding block 1 and the movable sliding block 2 are inclined, and the fixed sliding block 1 is provided with an inclined guide post 3. The movable sliding block 2 is provided with an inclined hole 21 adapted to the inclined guide post 3. The movable sliding block 2 is provided with a central forming pin 4 that can move synchronously with it and two sets of side forming pins 5 that can slide within it. The side forming pins 5 are respectively located on both sides of the central forming pin 4, and the contact surfaces of the side forming pins 5 and the central forming pin 4 are inclined inward. A sliding groove structure is provided between the contact surfaces. The fixed sliding block 1 is provided with a limiting block 6 corresponding to each of the side forming pins 5. When the fixed sliding block 1 and the movable sliding block 2 are combined, the rear end face of the side forming pin 5 abuts against the limiting block 6. The lower end of the limiting block 6 is provided with an angle 61.

[0030] Furthermore, a detachable pressure block 7 is provided at the front end of the movable slider 2. The pressure block 7 spans the middle forming pin 4 and the side forming pin 5. At this time, the side forming pin 5 can slide between the pressure block 7 and the movable slider 2. In this embodiment, since a mounting platform 41 is provided at the rear end of the middle forming pin 4, and a slot 22 adapted to the mounting platform 41 is provided on the movable slider 2, when the pressure block 7 is connected, the mounting platform 41 to which the middle forming pin 4 belongs is restricted in the slot 22 to which the movable slider 2 belongs. This achieves the detachable restriction of the middle forming pin 4 between the pressure block 7 and the movable slider 2, thereby enabling the middle forming pin 4 to move synchronously with the movable slider 2.

[0031] Furthermore, the pressure block 7 is provided with guide shafts 8 corresponding to the side forming pins 5 one by one, and the side forming pins 5 are provided with guide holes 51 adapted to the guide shafts 8. The guide holes 51 are elongated holes, and their length direction is parallel to the inclined square shape of the contact surface between the side forming pins 5 and the middle forming pins 4. During the forming operation, the side forming pins 5 are precisely guided along the inclined direction by the cooperation of the guide shafts 8 and the guide holes 51.

[0032] Furthermore, in this embodiment, the slide block structure includes a slide 9 formed on the side forming pin 5 and a slider 10 provided on the middle forming pin 4 for fitting the slide 9. The slide 9 is a T-shaped groove. Of course, the above is only one embodiment and is not intended to limit the scope of this application. In actual installation, the slide 9 can also be formed on the middle forming pin 4, and the slider 10 that fits the slide 9 can be provided on the side forming pin 5. The shape of the slide 9 is not limited to a T-shaped groove, but can also be a dovetail groove or other shapes.

[0033] Furthermore, four positioning holes (not shown in the figure) are provided on the bottom surface of the movable slider 2. The four positioning holes are arranged in pairs and are located at the front and rear ends of the bottom surface of the movable slider 2. During the molding operation, the positioning holes at the rear end cooperate with the ball spring locking pin to limit the molding position of the movable slider 2 in the mold core, and the positioning holes at the front end cooperate with the ball spring locking pin to limit the maximum demolding position of the movable slider 2.

[0034] The working principle of this utility model is as follows:

[0035] Before use, install the fixed slider 1 on the fixed mold (female mold) side of the mold, and install the movable slider 2 on the movable mold (male mold) side of the mold.

[0036] When the molding process is complete, the fixed slider 1 and the moving slider 2 are as follows: Figure 4-5As shown in the figure (A represents the molded product; B represents the ball spring locking pin; C represents this mechanism); during demolding, as the moving mold and fixed mold separate, the movement between the fixed slider 1 and the moving slider 2 is divided into two stages:

[0037] Phase 1: Fixed slider 1 moves upward relative to movable slider 2 (e.g., ...) Figure 6 (Vertical arrow in the middle), but the rear end face of the side forming pin 5 is not separated from the straight section on the side of the limiting block 6. At this time, as the fixed slider 1 moves upward, the movable slider 2, under the action of the inclined guide post 3, drives the middle forming pin 4 to move away from the product (e.g., vertical arrow in the middle), but the rear end face of the side forming pin 5 is not separated from the straight section on the side of the limiting block 6. Figure 6 (The arrow points in the horizontal direction), and the moving middle forming pin 4 will cause the side forming pin 5 to move inward (as shown by the arrow). Figure 7 (middle arrow direction).

[0038] Phase Two: See Figure 8 As shown, the fixed slider 1 continues to move upward relative to the moving slider 2, and the rear end face of the side forming pin 5 separates from the straight section on the side of the limiting block 6. As the fixed slider 1 moves upward, the moving slider 2, under the action of the inclined guide post 3, drives the middle forming pin 4 and the forming pin 5 to move together away from the product until the inclined guide post 3 disengages from the inclined hole 21. At this time, the ball at the upper end of the ball spring lock is just accommodated in the positioning hole at the front end of the bottom of the moving slider 2, thereby limiting the moving slider 2 and preventing it from moving due to inertia or vibration and affecting the mold closing.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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 composite mechanism for a sliding block in an injection mold, comprising a fixed sliding block (1) and a movable sliding block (2), wherein the contact surfaces of the fixed sliding block (1) and the movable sliding block (2) are inclined, and the fixed sliding block (1) is provided with an inclined guide post (3), and the movable sliding block (2) is provided with an inclined hole (21) adapted to the inclined guide post (3), characterized in that: The movable slider (2) is provided with a central forming pin (4) that can move synchronously with it and two sets of side forming pins (5) that can slide within it. The side forming pins (5) are respectively located on both sides of the central forming pin (4). While the contact surfaces of the side forming pins (5) and the central forming pin (4) are inclined inward, a sliding groove slider structure is provided between the contact surfaces. On the fixed slider (1), a limiting block (6) corresponding to each side forming pin (5) is provided. When the fixed slider (1) and the movable slider (2) are combined, the rear end face of the side forming pin (5) abuts against the limiting block (6).

2. The injection mold slider composite mechanism according to claim 1, characterized in that: The front end of the movable slider (2) is provided with a detachable pressure block (7), which spans the middle forming pin (4) and the side forming pin (5).

3. The injection mold slider composite mechanism according to claim 2, characterized in that: The rear end of the forming pin (4) is provided with a mounting platform (41), and the movable slider (2) is provided with a slot (22) that matches the mounting platform (41).

4. The injection mold slider composite mechanism according to claim 2, characterized in that: The pressure block (7) is provided with a guide shaft (8) that corresponds one-to-one with the side forming pin (5), and the side forming pin (5) is provided with a guide hole (51) that is adapted to the guide shaft (8).

5. The injection mold slider composite mechanism according to claim 4, characterized in that: The guide hole (51) is an elongated hole, and its length direction is parallel to the inclined square shape of the contact surface of the side forming pin (5) and the middle forming pin (4).

6. The injection mold slider composite mechanism according to claim 1, characterized in that: The slide block structure includes a slide groove (9) formed on the side forming pin (5) and a slider (10) provided on the middle forming pin (4) for fitting the slide groove (9); or, the slide block structure includes a slide groove (9) formed on the middle forming pin (4) and a slider (10) provided on the side forming pin (5) for fitting the slide groove (9).

7. The injection mold slider composite mechanism according to claim 6, characterized in that: The groove (9) is a T-groove or a dovetail groove.

8. The injection mold slider composite mechanism according to claim 1, characterized in that: The bottom surface of the movable slider (2) is provided with a positioning hole.

9. The injection mold slider composite mechanism according to claim 1, characterized in that: The lower end of the limiting block (6) is provided with an angle (61).

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