CN216267404U - A sliding block cylinder ejection structure - Google Patents

Abstract

The utility model discloses a slide block ejector sleeve ejection structure, which belongs to the technical field of injection molds and comprises a mold base body, wherein a first sliding groove is formed in the side surface of the mold base body, and the first sliding groove extends to the top surface of the mold base body; the inclined top and the die holder body are arranged at a certain angle, the inclined top is arranged in the die holder body in a sliding mode and extends into the first sliding groove, and a male die is arranged at the end of the inclined top; according to the utility model, the slider body slides in the first sliding groove on the die holder body, the inclined top slides in the second sliding groove on the die holder body, the cavity is formed between the slider body and the male die, the ejector mechanism is arranged in the slider body, when the slider body slides, the ejector mechanism ejects out an injection molding formed in the cavity, the inclined top performs demolding and unloading on the injection molding, the die drawing angle of a product does not need to be increased, the adhesion of the slider body during demolding can be avoided, the subsequent polishing process is saved, and the processing cost is reduced.

Description

A sliding block ejector structure

technical field

The utility model belongs to the technical field of injection moulds, and in particular relates to a slider cylinder ejection structure.

Background technique

Injection molding, also known as injection molding, is a molding method of injection and molding. The advantages of the injection molding method are that the production speed is fast, the efficiency is high, the operation can be automated, there are many varieties of colors, the shape can be from simple to complex, the size can be from large to small, and the size of the product is accurate, the product is easy to replace, and it can be formed into complex shapes. Parts, injection molding is suitable for mass production and complex shape products and other molding processing fields, injection molds play a decisive role in the effect and quality of injection molding.

A Chinese patent (CN201721453060.4) discloses an ejector mechanism, and in particular relates to a slider cylinder ejector mechanism. A fixed template is arranged above the movable template, a sliding block is arranged between the movable template and the fixed template, and a fixed mold insert fixed to the fixed template is arranged on the upper left of the sliding block.

At present, in order to prevent the injection molded parts from sticking to the slider when the injection mold is demolded, for injection molded parts with a simple structure, the slider structure only needs to be released from the inverted buckle, but for injection molded parts with complex structures, the product needs to be added. Large draft angle and subsequent polishing process lead to increased processing steps and increased processing costs.

Utility model content

The purpose of the utility model is: in order to solve the problem that the complex injection parts need to increase the draft angle to avoid the sticking of the slider, and the products need to be polished after demoulding, which leads to the increase of processing procedures and high processing costs. The utility model discloses a structure for ejecting a slider cylinder.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sliding block ejector structure, which includes:

The die base body has a first chute on its side, and the first chute extends to the top surface of the die base body;

The inclined roof is arranged at a certain angle with the mold base body, the inclined roof is slidably arranged in the mold base body, and the inclined roof extends into the first chute, the inclined roof A punch is arranged at the end of the punch, and the punch is located in the first chute;

The slider body is slidably arranged in the first chute, one end of the slider body extends to the outside of the die base body, and the other end of the slider body and the punch are formed A cavity, the slider body is provided with a cylinder mechanism, the cylinder mechanism is pressed against the side wall of the mold base body, and the cylinder mechanism extends into the cavity.

As a further description of the above technical solutions:

The mold base body is provided with a second chute, the inclined top slides in the second chute, and the angle between the inclined top and the mold base body is an obtuse angle.

As a further description of the above technical solution:

Two opposite sides of the inclined roof are provided with guide bosses, two opposite inner walls of the second slide groove are provided with guide slide grooves, and the guide bosses are slidably arranged in the guide slide grooves.

As a further description of the above technical solution:

The barrel-driving mechanism comprises a barrel-driving block, a driving spring, a barrel- barrel body and a barrel- barreling needle, the barrel- barreling needle passes through the slider body, and one end of the barrel-driving needle extends into the cavity, And the other end of the cylinder needle is fixed on the slider body through a pressing block, the cylinder body is sleeved on the cylinder needle, and one end of the cylinder body extends into the cavity , the cylinder drive block is slidably arranged in the slider body, the side surface of the cylinder drive block abuts the side wall of the die base body, and the cylinder drive block is fixedly connected to the cylinder body On the other end, one end of the slider body is provided with a limit block, the limit block abuts against the pressing block, and opposite ends of the driving spring abut against the limit block and the cylinder driving block respectively.

As a further description of the above technical solutions:

The slider body is provided with a third chute, the cylinder driving block is arranged in the third chute, and the cylinder driving block has a movable gap in the third chute.

As a further description of the above technical solutions:

The movable gap is 5mm.

As a further description of the above technical solution:

The first chute is a U-shaped groove.

As a further description of the above technical solution:

A U-shaped support rib is arranged on the inner wall of the first chute, and the U-shaped support rib supports the punch.

To sum up, due to the adoption of the above-mentioned technical solutions, the beneficial effects of the present utility model are:

1. In this utility model, the slider body slides in the first chute on the die base body, the inclined top slides in the second chute on the die base body, and a cavity is formed between the slider body and the punch. , A cylinder mechanism is set in the slider body. When the slider body slides, the cylinder mechanism will push out the injection molded parts in the cavity, and the inclined top will demold and unload the injection molded parts, and there is no need to increase the pulling of the product. The mold angle can avoid sticking when the slider body is released from the mold, save the subsequent polishing process, and thus reduce the processing cost.

2. In this utility model, by sliding the slider body, the elastic force of the compressed driving spring is released, and the cylinder driving block is always pushed against the side wall of the mold base body, and the relative relationship between the slider body and the cylinder driving block is Sliding, so that the cylinder driving block pushes the cylinder body and the cylinder needle to slide relative to each other. When the cylinder driving block slides to the edge of the movable gap in the third chute, the cylinder body extends into the cavity and injects the injection molding. to prevent the slider body from sticking.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a slider cylinder ejection structure.

Figure 2 is an exploded view of a sliding block ejector structure.

FIG. 3 is a partial enlarged view of part A in FIG. 2 .

FIG. 4 is a schematic structural diagram of a cylinder-busting mechanism in a sliding-block cylinder-busting-out structure.

FIG. 5 is a schematic structural diagram of a die base body in a sliding block ejector structure.

FIG. 6 is a schematic structural diagram of a slider body in a slider cylinder ejection structure.

FIG. 7 is a cross-sectional view of a slider cylinder ejection structure.

FIG. 8 is a partial enlarged view of part B in FIG. 7 .

FIG. 9 is a partial enlarged view of part C in FIG. 7 .

illustration:

1. Die base body; 2. The first chute; 3. Inclined top; 4. Punch; 5. Slider body; 6. Cavity; Spring; 73, cylinder body; 74, cylinder needle; 8, second chute; 9, guide boss; 10, guide chute; 11, pressure block; 12, limit block; 13, third chute ; 14. Active clearance; 15. U-shaped support ribs.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figures 1-9, the present utility model provides a technical solution: a sliding block ejector structure, including:

The die base body 1 has a first chute 2 on its side, and the first chute 2 extends to the top surface of the die base body 1;

The inclined top 3 is arranged at a certain angle with the die base body 1 , the inclined top 3 is slidably arranged in the die base body 1 , and the inclined top 3 extends to the first chute 2 Inside, the end of the inclined roof 3 is provided with a punch 4, and the punch 4 is located in the first chute 2;

The slider body 5 is slidably arranged in the first chute 2 , and one end of the slider body 5 extends to the outside of the die base body 1 , and the other end of the slider body 5 is connected to the A cavity 6 is formed between the punches 4 , and the slider body 5 is provided with a cylinder mechanism 7 , the cylinder mechanism 7 is pressed against the side wall of the mold base body 1 , and the cylinder mechanism 7 extends to in the cavity 6;

The mold base body 1 is provided with a second chute 8, the inclined top 3 slides in the second chute 8, and the angle between the inclined top 3 and the mold base body 1 is an obtuse angle ; The opposite sides of the inclined roof 3 are provided with guide bosses 9, and two opposite inner walls of the second chute 8 are provided with guide chute 10, and the guide boss 9 is slidably arranged on the guide chute In 10, the inclined top 3 slides along the second chute 8, while the guide boss 9 slides along the guide chute 10, which is conducive to the smooth sliding of the inclined top 3 on the die base body 1;

The barrel mechanism 7 includes a barrel driving block 71 , a driving spring 72 , a barrel body 73 and a barrel needle 74 , the barrel needle 74 passes through the slider body 5 , and one end of the barrel needle 74 extending into the cavity 6, and the other end of the cylinder needle 74 is fixed on the slider body 5 through the pressing block 11, and the cylinder body 73 is sleeved on the cylinder needle 74, One end of the barrel body 73 extends into the cavity 6 , the barrel driving block 71 is slidably disposed in the slider body 5 , and the side surface of the barrel driving block 71 is against the mold base body 1, and the cylinder driving block 71 is fixedly connected to the other end of the cylinder body 73, one end of the slider body 5 is provided with a limiting block 12, and the limiting block 12 is pressed against the pressing block 11. The opposite ends of the driving spring 72 abut the limiting block 12 and the cylinder driving block 71 respectively; the slider body 5 is provided with a third chute 13, and the cylinder driving block 71 Set in the third chute 13, the cylinder driving block 71 has a movable gap 14 in the third chute 13; the movable gap 14 is 5mm, when demoulding, the slider body 5 Slide along the first chute 2 to the side of the die base body 1, the cylinder needle 74 moves with the slider body 5, the cylinder needle 74 is pulled out from the inside of the injection molded part, and the cylinder driving block 71 is in the driving spring 72. Under the action, it always presses against the side of the die base body 1, and a relative displacement occurs between the sliding block body 5 and the cylinder driving block 71. At this time, the cylinder driving block 71 slides along the third chute 13, and the cylinder is driven. The drive block 71 pushes the cylinder body 73 to slide along the cylinder needle 74, and the cylinder body 73 slides into the cavity 6 and presses against the injection molded part, pushing the injection molded part out of the slider, thereby preventing the slider from sticking;

The first chute 2 is a U-shaped slot, which ensures that the slider body 5 slides smoothly in the first chute 2, so that the injection molded parts will not be disturbed by forces from different directions when demoulding, which is conducive to smooth demoulding. Ensure that the slider does not stick to the material;

The inner wall of the first chute 2 is provided with a U-shaped support rib 15 , and the U-shaped support rib 15 supports the punch 4 and has a limiting effect on the position of the punch 4 .

Working principle: First, the plastic flow material enters the cavity 6 and solidifies to form an injection molded part. Second, demolding is performed. The slider body 5 slides along the first chute 2 to the side of the mold base body 1, and the cylinder needle 74 moves together with the slider body 5 under the action of the pressing block 11, the cylinder needle 74 is pulled out from the inside of the injection molded part, and the cylinder driving block 71 always presses against the side of the mold base body 1 under the action of the driving spring 72, and the sliding There is a relative displacement between the sliding block body 5 and the cylinder driving block 71. At this time, the cylinder driving block 71 slides along the third chute 13, and the cylinder driving block 71 pushes the cylinder body 73 along the cylinder needle. 74 slides, the sliding distance of the cylinder driving block 71 is the size of the movable gap 14, the cylinder body 73 slides into the interior of the cavity 6 and resists the injection molded parts, and pushes the injection molded parts out of the slider. Block body 5, the cylinder driving block 71 will leave the side of the die base body 1, then, the inclined top 3 slides along the second chute 8, while the guide boss 9 slides along the guide chute 10, the punch 4 leaves The first chute 2 pushes out the injection molded parts and completes demoulding. Finally, after demolding, it is reset. The inclined top 3 slides along the second chute 8, while the guide boss 9 slides along the guide chute 10. 4 into the first chute 2, the U-shaped support rib 15 supports the punch 4, slides the slider body 5 along the first chute 2, the cylinder mechanism 7 slides with the slider body 5, when the cylinder drives When the block 71 touches the side wall of the die base body 1, the cylinder driving block 71 slides along the third chute 13, the cylinder driving block 71 drives the cylinder body 73 to slide along the cylinder needle 74, and the driving spring 72 is acted to be compressed in the direction of the limit block 12. When the slider body 5 stops sliding, the cylinder body 73 slides to the edge of the cavity 6, and the cylinder drive block 71 flows out of the movable gap 14 in the third chute 13 and slides. The block body 5 , the punch 4 and the U-shaped support rib 15 surround the molding cavity 6 .

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (8)

1. A sliding block ejector structure, characterized in that: comprising: a die base body (1), a first chute (2) is provided on its side surface, and the first chute (2) extends to the top surface of the die base body (1); A sloping top (3) is arranged at a certain angle with the die base body (1), the sloping top (3) is slidably arranged in the die base body (1), and the sloping top (3) ) extends into the first chute (2), the end of the inclined top (3) is provided with a punch (4), and the punch (4) is located in the first chute (2) ; A slider body (5), which is slidably arranged in the first chute (2), and one end of the slider body (5) extends to the outside of the die base body (1), the slider A cavity (6) is formed between the other end of the main body (5) and the punch (4), the slider body (5) is provided with a cylinder-steering mechanism (7), and the cylinder-steering mechanism (7) resists The side wall of the mold base body (1) is held, and the barrel ejector mechanism (7) extends into the cavity (6). 2. A sliding block ejector structure according to claim 1, characterized in that, the die base body (1) is provided with a second chute (8), and the inclined top (3) slides In the second chute (8), the angle between the inclined top (3) and the die base body (1) is an obtuse angle. 3. A sliding block ejecting structure according to claim 2, characterized in that, guide bosses (9) are provided on opposite sides of the inclined top (3), and the second chute ( A guide chute (10) is provided on two opposite inner walls of 8), and the guide boss (9) is slidably arranged in the guide chute (10). 4. A sliding block cylinder ejection structure according to claim 1, characterized in that, the cylinder cylinder mechanism (7) comprises a cylinder cylinder driving block (71), a driving spring (72), a cylinder cylinder body ( 73) and a cylinder needle (74), the cylinder needle (74) passes through the slider body (5), and one end of the cylinder needle (74) extends into the cavity (6), And the other end of the cylinder needle (74) is fixed on the slider body (5) through a pressing block (11), and the cylinder body (73) is sleeved on the cylinder needle (74) , one end of the cylinder body (73) extends into the cavity (6), the cylinder driving block (71) is slidably arranged in the slider body (5), and the cylinder driving block The side surface of (71) is pressed against the side wall of the die base body (1), and the cylinder driving block (71) is fixedly connected to the other end of the cylinder body (73), and the slider body (5) A limit block (12) is provided at one end of the drive spring, the limit block (12) is pressed against the pressing block (11), and opposite ends of the driving spring (72) are respectively against the limit block (12) and the Describe the cylinder drive block (71). 5. A slider cylinder ejection structure according to claim 4, wherein the slider body (5) is provided with a third chute (13), the cylinder drive block (71) ) is arranged in the third chute (13), and the cylinder driving block (71) has a movable gap (14) in the third chute (13). 6 . The ejector structure of the slider cylinder according to claim 5 , wherein the movable gap ( 14 ) is 5 mm. 7 . 7 . The ejector structure of the slider cylinder according to claim 1 , wherein the first chute ( 2 ) is a U-shaped groove. 8 . 8 . The ejector structure of the slider cylinder according to claim 7 , wherein a U-shaped support rib ( 15 ) is provided on the inner wall of the first chute ( 2 ), and the U-shaped support Ribs (15) hold the punch (4).

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