Simple slide block secondary ejection structure

Abstract

The utility model relates to the technical field of injection molds, in particular to a simple slide block secondary ejection structure, which comprises a plate B and a plate A. The plate B and the plate A can perform mold opening and closing operation, a rear mold core connected with the plate B is arranged in the plate B, a front mold core connected with the plate A is arranged in the plate A, and the rear mold core is connected with the front mold core. An ejection assembly which is matched with the front mold core and the rear mold core and can form a product is arranged between the plate B and the plate A; the ejection assembly comprises a sliding block seat, the sliding block seat is located between the plate A and the plate B and can move, a sliding block insert capable of being connected with the sliding block seat is arranged in the sliding block seat, an elastic block is installed in the sliding block insert, the sliding block insert and the elastic block can eject a product out for the first time, and the ejection assembly can eject the product out for the second time. A flat ejector pin which is matched with the rear mold core, the sliding block insert, the elastic block and the front mold core and can form a product is arranged in the sliding block seat; and the flat ejector pin can eject out the elastic block and secondarily eject out the product which is primarily ejected out.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a simple slider secondary ejection structure. Background Art

[0002] Traditional injection mold slider structures currently on the market can generally meet requirements by simply adding a single ejector. However, with the development of the automotive industry, the requirements for automotive headlights are constantly increasing, resulting in an increasing number of thick-walled optical components within headlights. Thick-walled components generally meet optical requirements, while also exhibiting fine surface patterns. The product must not exhibit any microsculpting, and must meet high aesthetic requirements. Based on the functional requirements of the product, higher injection and holding pressures are used during injection molding, along with longer holding times. This results in a high clamping force on the product. Without proper ejection, some mounting feet and thin rib areas on thick-walled components can break apart. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides a simple slider secondary ejection structure, which solves the problems raised in the above background technology.

[0005] (2) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a simple slider secondary ejection structure, comprising a B plate and an A plate, wherein the B plate and the A plate can perform mold opening and closing operations, the B plate is provided with a rear mold core connected to the B plate, the A plate is provided with a front mold core connected to the A plate, and an ejection assembly is provided between the B plate and the A plate, which cooperates with the front mold core and the rear mold core and can form a product;

[0007] The ejection assembly includes a slider seat, which is located between plate A and plate B and can move. The slider seat is provided with a slider insert that can be connected to the slider seat, and the slider insert is installed with a spring block. The slider insert and the spring block can perform initial ejection of the product. The slider seat is provided with a flat ejector that cooperates with the rear mold core, the slider insert, the spring block and the front mold core and can form a product. The flat ejector can eject the spring block and perform a secondary ejection on the product that has been ejected initially.

[0008] Furthermore, the slider seat is provided with an ejector pin fixing block for positioning and installing the flat ejector pin, and the ejector pin fixing block is provided with a spring which is arranged in an empty sleeve with the flat ejector pin, and the spring contacts the wall of the spring block.

[0009] Furthermore, the A plate includes an inclined guide column connected to the A plate and capable of guiding the movement of the slider seat.

[0010] Furthermore, the bottom end of the inclined guide column extends into the B plate, and the A plate is provided with an inclined guide column fixing block connected to the A plate by screws, and the inclined guide column fixing block can lock and fix the inclined guide column, and one end of the ejector fixing block is located in the groove of the inclined guide column fixing block and one end wall of the ejector fixing block is in contact with the wall in the groove of the inclined guide column fixing block.

[0011] Furthermore, the oblique guide column fixing block is located above the slider seat, one end surface of the ejector pin fixing block is a straight surface, and the wall of the groove of the oblique guide column fixing block is a straight surface.

[0012] Furthermore, the slider seat is provided with a wear-resistant plate that can be in contact with the inclined guide column fixing block, and the outside of the B plate is provided with a slider limiting block that can limit the movement of the slider insert.

[0013] Furthermore, the slider insert is installed in the slider seat by screws.

[0014] Furthermore, a bullet block hanging platform is provided in the bullet block, which can limit the movement of the bullet block.

[0015] The installation order of this solution is:

[0016] Step 1: Install the spring block onto the slider insert first.

[0017] Step 2: Secure the slider insert to the slider seat with screws

[0018] Step 3: Assemble the flat ejector pin, spring, and ejector pin fixing block in sequence and install them into the slider seat.

[0019] Step 4: Finally, fix the wear-resistant plate to the slider seat with screws to complete the installation. The demoulding is the opposite.

[0020] Working principle:

[0021] 1. When plates A and B in the mold are opened, the inclined guide column drives the slider seat to retreat. The ejector fixing block and the inclined ejector column fixing block cooperate with each other in the straight surface to ensure that the spring force acts on the spring block during the retreat of the slider, thereby ensuring that the spring block does not retreat with the slider, and plays an ejection role relative to the slider. When the spring block is ejected 2mm relative to the slider, it passes through the hanging platform on the spring block and retreats together with the slider. At this time, the straight surfaces of the ejector fixing block and the inclined ejector column fixing block are still in a coordinated state. The flat ejector does not move during the retreat of the slider and is still in an ejected state relative to the slider. After the slider moves to 5mm, the straight surface disengages, and the flat ejector is reset under the force of the spring (the spring block and the flat ejector are first ejected 2mm relative to the main body of the slider, and then the spring block stops, and the flat ejector continues to push 3mm to achieve the effect of secondary ejection).

[0022] 2. When plates A and B in the mold are closed, the slider body moves forward under the action of the inclined guide pillar until the parting surface of the spring block contacts the rear mold surface. Then the spring block stops moving and the slider continues to move forward 2mm to compress the spring to close the mold in place, completing the entire movement process.

[0023] Compared with the existing technology, this simple slider secondary ejection structure achieves secondary ejection by optimizing the slider's primary ejection, effectively solving the problem of insufficient slider space. When the product's holding force is too strong, and the flat top ejection method cannot eject the product for mass production, this structure can be used to make the entire insert area into a spring block. After the ejection removes some of the force, the flat top ejects the spring block, thereby ejecting the product a second time through the ejection spring block. This saves space while effectively solving the problem of product damage and cracking caused by insufficient ejection surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the utility model;

[0025] Figure 2 For this utility model Figure 1 AA cross-sectional structural diagram in;

[0026] Figure 3 For this utility model Figure 1 Schematic diagram of some structures in .

[0027] In the figure: 1. Product; 2. Rear mold core; 3. Slider insert; 4. Spring block; 5. Slider seat; 6. Flat ejector pin; 7. Spring; 8. Ejector fixing block; 9. Wear-resistant plate; 10. Inclined guide pin; 11. Inclined guide pin fixing block; 12. Slider limit block; 13. Plate B; 14. Plate A; 15. Front mold core; 16. Ejector assembly. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figures 1 to 3The utility model provides a technical solution: a simple slider secondary ejection structure, including a B plate 13 and an A plate 14, the B plate 13 and the A plate 14 can perform mold opening and closing operations, characterized in that: the B plate 13 is provided with a rear mold core 2 connected to the B plate 13, the A plate 14 is provided with a front mold core 15 connected to the A plate 14, and an ejection component 16 is provided between the B plate 13 and the A plate 14, which cooperates with the front mold core 15 and the rear mold core 2 and can form a product 1; the ejection component 16 includes a slider seat 5, and the A plate 14 is provided with a front mold core 15 connected to the A plate 14. The inclined guide column 10 is connected and can guide the movement of the slider seat 5. The bottom end of the inclined guide column 10 extends to the B plate 13. The A plate 14 is provided with an inclined guide column fixing block 11 connected to the A plate 14 by screws and the inclined guide column fixing block 11 can lock and fix the inclined guide column 10. One end of the ejector fixing block 8 is located in the groove of the inclined guide column fixing block 11 and one end wall of the ejector fixing block 8 fits with the wall in the groove of the inclined guide column fixing block 8. The inclined guide column fixing block 11 is located above the slider seat 5. The slider seat 5 is also provided with a screw that can be fixed with the inclined guide column fixing block 11. The wear-resistant plate 9 is attached to the guide column fixing block 11, and the outside of the B plate 13 is provided with a slider limit block 12 that can limit the movement of the slider insert 3. The end surface of the ejector fixing block 8 is a straight surface, and the wall of the groove of the inclined guide column fixing block 11 is a straight surface. The slider seat 5 is located between the A plate 14 and the B plate 13 and can move. The slider seat 5 is provided with a slider insert 3 that can be connected to the slider seat 5. The slider insert 3 is installed in the slider seat 5 by screws. The slider insert 3 is installed with a spring block 4, and the spring block 4 is provided with a spring block 4 that can limit the movement of the spring block 4. A spring block hanging platform for limiting the position, the slider insert 3 and the spring block 4 can perform the initial ejection of the product 1, the slider seat 5 is provided with a flat ejector 6 that cooperates with the rear mold core 2, the slider insert 3, the spring block 4 and the front mold core 15 and can constitute the product 1, the flat ejector 6 can eject the spring block 4 and perform a secondary ejection on the product 1 that has been ejected for the initial time, the slider seat 5 is provided with an ejector fixing block 8 for positioning and installing the flat ejector 6, the ejector fixing block 8 is provided with a spring 7 that is set in an empty sleeve with the flat ejector 6, and the spring 7 is in contact with the wall of the spring block 4.

[0030] In the description of this specification, the terms "connect", "install", "fix", "set", etc. are understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. As in this example, for ordinary technicians in this field, the specific meanings of the above terms in this utility model or utility model can be understood according to specific circumstances.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A simple slider secondary ejection structure, comprising a B plate (13) and an A plate (14), wherein the B plate (13) and the A plate (14) can perform mold opening and closing operations, and is characterized in that: The B plate (13) is provided with a rear mold core (2) connected to the B plate (13), the A plate (14) is provided with a front mold core (15) connected to the A plate (14), and an ejection assembly (16) is provided between the B plate (13) and the A plate (14) and is matched with the front mold core (15) and the rear mold core (2) and capable of forming the product (1); The ejection assembly (16) includes a slider seat (5), the slider seat (5) is located between the A plate (14) and the B plate (13) and can move, the slider seat (5) is provided with a slider insert (3) that can be connected to the slider seat (5), the slider insert (3) is installed with a spring block (4), the slider insert (3) and the spring block (4) can perform a primary ejection of the product (1), the slider seat (5) is provided with a flat ejector (6) that cooperates with the rear mold core (2), the slider insert (3), the spring block (4) and the front mold core (15) and can form the product (1), the flat ejector (6) can eject the spring block (4) and perform a secondary ejection of the product (1) that has been ejected for the primary ejection.

2. The simple slider secondary ejection structure according to claim 1, characterized in that: The slider seat (5) is provided with a pin fixing block (8) for positioning and installing the flat pin (6), and the pin fixing block (8) is provided with a spring (7) which is arranged in an empty sleeve with the flat pin (6), and the spring (7) is in contact with the wall of the spring block (4).

3. The simple slider secondary ejection structure according to claim 2, characterized in that: An inclined guide column (10) in the A plate (14) is connected to the A plate (14) and can guide the movement of the slider seat (5).

4. The simple slider secondary ejection structure according to claim 3, characterized in that: The bottom end of the inclined guide column (10) extends into the B plate (13), and the A plate (14) is provided with an inclined guide column fixing block (11) connected to the A plate (14) by screws, and the inclined guide column fixing block (11) can lock and fix the inclined guide column (10), and one end of the ejector fixing block (8) is located in the groove of the inclined guide column fixing block (11), and one end wall of the ejector fixing block (8) is in contact with the wall in the groove of the inclined guide column fixing block (11).

5. The simple slider secondary ejection structure according to claim 4, characterized in that: The inclined guide column fixing block (11) is located above the slider seat (5), one end surface of the ejector pin fixing block (8) is a straight surface, and the wall of the groove of the inclined guide column fixing block (11) is a straight surface.

6. The simple slider secondary ejection structure according to claim 1, characterized in that: The slider seat (5) is further provided with a wear-resistant plate (9) capable of abutting against the inclined guide column fixing block (11), and the outside of the B plate (13) is provided with a slider limiting block (12) capable of limiting the movement of the slider insert (3).

7. The simple slider secondary ejection structure according to claim 6, characterized in that: The slider insert (3) is mounted in the slider seat (5) by means of screws.

8. The simple slider secondary ejection structure according to claim 1, characterized in that: The bullet block (4) is provided with a bullet block hanging platform capable of limiting the movement of the bullet block (4).

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